| File: | src/gnu/usr.bin/clang/libclangSema/../../../llvm/clang/lib/Sema/SemaOpenMP.cpp |
| Warning: | line 8938, column 22 Called C++ object pointer is null |
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| 1 | //===--- SemaOpenMP.cpp - Semantic Analysis for OpenMP constructs ---------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | /// \file |
| 9 | /// This file implements semantic analysis for OpenMP directives and |
| 10 | /// clauses. |
| 11 | /// |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "TreeTransform.h" |
| 15 | #include "clang/AST/ASTContext.h" |
| 16 | #include "clang/AST/ASTMutationListener.h" |
| 17 | #include "clang/AST/CXXInheritance.h" |
| 18 | #include "clang/AST/Decl.h" |
| 19 | #include "clang/AST/DeclCXX.h" |
| 20 | #include "clang/AST/DeclOpenMP.h" |
| 21 | #include "clang/AST/OpenMPClause.h" |
| 22 | #include "clang/AST/StmtCXX.h" |
| 23 | #include "clang/AST/StmtOpenMP.h" |
| 24 | #include "clang/AST/StmtVisitor.h" |
| 25 | #include "clang/AST/TypeOrdering.h" |
| 26 | #include "clang/Basic/DiagnosticSema.h" |
| 27 | #include "clang/Basic/OpenMPKinds.h" |
| 28 | #include "clang/Basic/PartialDiagnostic.h" |
| 29 | #include "clang/Basic/TargetInfo.h" |
| 30 | #include "clang/Sema/Initialization.h" |
| 31 | #include "clang/Sema/Lookup.h" |
| 32 | #include "clang/Sema/Scope.h" |
| 33 | #include "clang/Sema/ScopeInfo.h" |
| 34 | #include "clang/Sema/SemaInternal.h" |
| 35 | #include "llvm/ADT/IndexedMap.h" |
| 36 | #include "llvm/ADT/PointerEmbeddedInt.h" |
| 37 | #include "llvm/ADT/STLExtras.h" |
| 38 | #include "llvm/ADT/StringExtras.h" |
| 39 | #include "llvm/Frontend/OpenMP/OMPConstants.h" |
| 40 | #include <set> |
| 41 | |
| 42 | using namespace clang; |
| 43 | using namespace llvm::omp; |
| 44 | |
| 45 | //===----------------------------------------------------------------------===// |
| 46 | // Stack of data-sharing attributes for variables |
| 47 | //===----------------------------------------------------------------------===// |
| 48 | |
| 49 | static const Expr *checkMapClauseExpressionBase( |
| 50 | Sema &SemaRef, Expr *E, |
| 51 | OMPClauseMappableExprCommon::MappableExprComponentList &CurComponents, |
| 52 | OpenMPClauseKind CKind, OpenMPDirectiveKind DKind, bool NoDiagnose); |
| 53 | |
| 54 | namespace { |
| 55 | /// Default data sharing attributes, which can be applied to directive. |
| 56 | enum DefaultDataSharingAttributes { |
| 57 | DSA_unspecified = 0, /// Data sharing attribute not specified. |
| 58 | DSA_none = 1 << 0, /// Default data sharing attribute 'none'. |
| 59 | DSA_shared = 1 << 1, /// Default data sharing attribute 'shared'. |
| 60 | DSA_firstprivate = 1 << 2, /// Default data sharing attribute 'firstprivate'. |
| 61 | }; |
| 62 | |
| 63 | /// Stack for tracking declarations used in OpenMP directives and |
| 64 | /// clauses and their data-sharing attributes. |
| 65 | class DSAStackTy { |
| 66 | public: |
| 67 | struct DSAVarData { |
| 68 | OpenMPDirectiveKind DKind = OMPD_unknown; |
| 69 | OpenMPClauseKind CKind = OMPC_unknown; |
| 70 | unsigned Modifier = 0; |
| 71 | const Expr *RefExpr = nullptr; |
| 72 | DeclRefExpr *PrivateCopy = nullptr; |
| 73 | SourceLocation ImplicitDSALoc; |
| 74 | bool AppliedToPointee = false; |
| 75 | DSAVarData() = default; |
| 76 | DSAVarData(OpenMPDirectiveKind DKind, OpenMPClauseKind CKind, |
| 77 | const Expr *RefExpr, DeclRefExpr *PrivateCopy, |
| 78 | SourceLocation ImplicitDSALoc, unsigned Modifier, |
| 79 | bool AppliedToPointee) |
| 80 | : DKind(DKind), CKind(CKind), Modifier(Modifier), RefExpr(RefExpr), |
| 81 | PrivateCopy(PrivateCopy), ImplicitDSALoc(ImplicitDSALoc), |
| 82 | AppliedToPointee(AppliedToPointee) {} |
| 83 | }; |
| 84 | using OperatorOffsetTy = |
| 85 | llvm::SmallVector<std::pair<Expr *, OverloadedOperatorKind>, 4>; |
| 86 | using DoacrossDependMapTy = |
| 87 | llvm::DenseMap<OMPDependClause *, OperatorOffsetTy>; |
| 88 | /// Kind of the declaration used in the uses_allocators clauses. |
| 89 | enum class UsesAllocatorsDeclKind { |
| 90 | /// Predefined allocator |
| 91 | PredefinedAllocator, |
| 92 | /// User-defined allocator |
| 93 | UserDefinedAllocator, |
| 94 | /// The declaration that represent allocator trait |
| 95 | AllocatorTrait, |
| 96 | }; |
| 97 | |
| 98 | private: |
| 99 | struct DSAInfo { |
| 100 | OpenMPClauseKind Attributes = OMPC_unknown; |
| 101 | unsigned Modifier = 0; |
| 102 | /// Pointer to a reference expression and a flag which shows that the |
| 103 | /// variable is marked as lastprivate(true) or not (false). |
| 104 | llvm::PointerIntPair<const Expr *, 1, bool> RefExpr; |
| 105 | DeclRefExpr *PrivateCopy = nullptr; |
| 106 | /// true if the attribute is applied to the pointee, not the variable |
| 107 | /// itself. |
| 108 | bool AppliedToPointee = false; |
| 109 | }; |
| 110 | using DeclSAMapTy = llvm::SmallDenseMap<const ValueDecl *, DSAInfo, 8>; |
| 111 | using UsedRefMapTy = llvm::SmallDenseMap<const ValueDecl *, const Expr *, 8>; |
| 112 | using LCDeclInfo = std::pair<unsigned, VarDecl *>; |
| 113 | using LoopControlVariablesMapTy = |
| 114 | llvm::SmallDenseMap<const ValueDecl *, LCDeclInfo, 8>; |
| 115 | /// Struct that associates a component with the clause kind where they are |
| 116 | /// found. |
| 117 | struct MappedExprComponentTy { |
| 118 | OMPClauseMappableExprCommon::MappableExprComponentLists Components; |
| 119 | OpenMPClauseKind Kind = OMPC_unknown; |
| 120 | }; |
| 121 | using MappedExprComponentsTy = |
| 122 | llvm::DenseMap<const ValueDecl *, MappedExprComponentTy>; |
| 123 | using CriticalsWithHintsTy = |
| 124 | llvm::StringMap<std::pair<const OMPCriticalDirective *, llvm::APSInt>>; |
| 125 | struct ReductionData { |
| 126 | using BOKPtrType = llvm::PointerEmbeddedInt<BinaryOperatorKind, 16>; |
| 127 | SourceRange ReductionRange; |
| 128 | llvm::PointerUnion<const Expr *, BOKPtrType> ReductionOp; |
| 129 | ReductionData() = default; |
| 130 | void set(BinaryOperatorKind BO, SourceRange RR) { |
| 131 | ReductionRange = RR; |
| 132 | ReductionOp = BO; |
| 133 | } |
| 134 | void set(const Expr *RefExpr, SourceRange RR) { |
| 135 | ReductionRange = RR; |
| 136 | ReductionOp = RefExpr; |
| 137 | } |
| 138 | }; |
| 139 | using DeclReductionMapTy = |
| 140 | llvm::SmallDenseMap<const ValueDecl *, ReductionData, 4>; |
| 141 | struct DefaultmapInfo { |
| 142 | OpenMPDefaultmapClauseModifier ImplicitBehavior = |
| 143 | OMPC_DEFAULTMAP_MODIFIER_unknown; |
| 144 | SourceLocation SLoc; |
| 145 | DefaultmapInfo() = default; |
| 146 | DefaultmapInfo(OpenMPDefaultmapClauseModifier M, SourceLocation Loc) |
| 147 | : ImplicitBehavior(M), SLoc(Loc) {} |
| 148 | }; |
| 149 | |
| 150 | struct SharingMapTy { |
| 151 | DeclSAMapTy SharingMap; |
| 152 | DeclReductionMapTy ReductionMap; |
| 153 | UsedRefMapTy AlignedMap; |
| 154 | UsedRefMapTy NontemporalMap; |
| 155 | MappedExprComponentsTy MappedExprComponents; |
| 156 | LoopControlVariablesMapTy LCVMap; |
| 157 | DefaultDataSharingAttributes DefaultAttr = DSA_unspecified; |
| 158 | SourceLocation DefaultAttrLoc; |
| 159 | DefaultmapInfo DefaultmapMap[OMPC_DEFAULTMAP_unknown]; |
| 160 | OpenMPDirectiveKind Directive = OMPD_unknown; |
| 161 | DeclarationNameInfo DirectiveName; |
| 162 | Scope *CurScope = nullptr; |
| 163 | DeclContext *Context = nullptr; |
| 164 | SourceLocation ConstructLoc; |
| 165 | /// Set of 'depend' clauses with 'sink|source' dependence kind. Required to |
| 166 | /// get the data (loop counters etc.) about enclosing loop-based construct. |
| 167 | /// This data is required during codegen. |
| 168 | DoacrossDependMapTy DoacrossDepends; |
| 169 | /// First argument (Expr *) contains optional argument of the |
| 170 | /// 'ordered' clause, the second one is true if the regions has 'ordered' |
| 171 | /// clause, false otherwise. |
| 172 | llvm::Optional<std::pair<const Expr *, OMPOrderedClause *>> OrderedRegion; |
| 173 | unsigned AssociatedLoops = 1; |
| 174 | bool HasMutipleLoops = false; |
| 175 | const Decl *PossiblyLoopCounter = nullptr; |
| 176 | bool NowaitRegion = false; |
| 177 | bool CancelRegion = false; |
| 178 | bool LoopStart = false; |
| 179 | bool BodyComplete = false; |
| 180 | SourceLocation PrevScanLocation; |
| 181 | SourceLocation PrevOrderedLocation; |
| 182 | SourceLocation InnerTeamsRegionLoc; |
| 183 | /// Reference to the taskgroup task_reduction reference expression. |
| 184 | Expr *TaskgroupReductionRef = nullptr; |
| 185 | llvm::DenseSet<QualType> MappedClassesQualTypes; |
| 186 | SmallVector<Expr *, 4> InnerUsedAllocators; |
| 187 | llvm::DenseSet<CanonicalDeclPtr<Decl>> ImplicitTaskFirstprivates; |
| 188 | /// List of globals marked as declare target link in this target region |
| 189 | /// (isOpenMPTargetExecutionDirective(Directive) == true). |
| 190 | llvm::SmallVector<DeclRefExpr *, 4> DeclareTargetLinkVarDecls; |
| 191 | /// List of decls used in inclusive/exclusive clauses of the scan directive. |
| 192 | llvm::DenseSet<CanonicalDeclPtr<Decl>> UsedInScanDirective; |
| 193 | llvm::DenseMap<CanonicalDeclPtr<const Decl>, UsesAllocatorsDeclKind> |
| 194 | UsesAllocatorsDecls; |
| 195 | Expr *DeclareMapperVar = nullptr; |
| 196 | SharingMapTy(OpenMPDirectiveKind DKind, DeclarationNameInfo Name, |
| 197 | Scope *CurScope, SourceLocation Loc) |
| 198 | : Directive(DKind), DirectiveName(Name), CurScope(CurScope), |
| 199 | ConstructLoc(Loc) {} |
| 200 | SharingMapTy() = default; |
| 201 | }; |
| 202 | |
| 203 | using StackTy = SmallVector<SharingMapTy, 4>; |
| 204 | |
| 205 | /// Stack of used declaration and their data-sharing attributes. |
| 206 | DeclSAMapTy Threadprivates; |
| 207 | const FunctionScopeInfo *CurrentNonCapturingFunctionScope = nullptr; |
| 208 | SmallVector<std::pair<StackTy, const FunctionScopeInfo *>, 4> Stack; |
| 209 | /// true, if check for DSA must be from parent directive, false, if |
| 210 | /// from current directive. |
| 211 | OpenMPClauseKind ClauseKindMode = OMPC_unknown; |
| 212 | Sema &SemaRef; |
| 213 | bool ForceCapturing = false; |
| 214 | /// true if all the variables in the target executable directives must be |
| 215 | /// captured by reference. |
| 216 | bool ForceCaptureByReferenceInTargetExecutable = false; |
| 217 | CriticalsWithHintsTy Criticals; |
| 218 | unsigned IgnoredStackElements = 0; |
| 219 | |
| 220 | /// Iterators over the stack iterate in order from innermost to outermost |
| 221 | /// directive. |
| 222 | using const_iterator = StackTy::const_reverse_iterator; |
| 223 | const_iterator begin() const { |
| 224 | return Stack.empty() ? const_iterator() |
| 225 | : Stack.back().first.rbegin() + IgnoredStackElements; |
| 226 | } |
| 227 | const_iterator end() const { |
| 228 | return Stack.empty() ? const_iterator() : Stack.back().first.rend(); |
| 229 | } |
| 230 | using iterator = StackTy::reverse_iterator; |
| 231 | iterator begin() { |
| 232 | return Stack.empty() ? iterator() |
| 233 | : Stack.back().first.rbegin() + IgnoredStackElements; |
| 234 | } |
| 235 | iterator end() { |
| 236 | return Stack.empty() ? iterator() : Stack.back().first.rend(); |
| 237 | } |
| 238 | |
| 239 | // Convenience operations to get at the elements of the stack. |
| 240 | |
| 241 | bool isStackEmpty() const { |
| 242 | return Stack.empty() || |
| 243 | Stack.back().second != CurrentNonCapturingFunctionScope || |
| 244 | Stack.back().first.size() <= IgnoredStackElements; |
| 245 | } |
| 246 | size_t getStackSize() const { |
| 247 | return isStackEmpty() ? 0 |
| 248 | : Stack.back().first.size() - IgnoredStackElements; |
| 249 | } |
| 250 | |
| 251 | SharingMapTy *getTopOfStackOrNull() { |
| 252 | size_t Size = getStackSize(); |
| 253 | if (Size == 0) |
| 254 | return nullptr; |
| 255 | return &Stack.back().first[Size - 1]; |
| 256 | } |
| 257 | const SharingMapTy *getTopOfStackOrNull() const { |
| 258 | return const_cast<DSAStackTy&>(*this).getTopOfStackOrNull(); |
| 259 | } |
| 260 | SharingMapTy &getTopOfStack() { |
| 261 | assert(!isStackEmpty() && "no current directive")((void)0); |
| 262 | return *getTopOfStackOrNull(); |
| 263 | } |
| 264 | const SharingMapTy &getTopOfStack() const { |
| 265 | return const_cast<DSAStackTy&>(*this).getTopOfStack(); |
| 266 | } |
| 267 | |
| 268 | SharingMapTy *getSecondOnStackOrNull() { |
| 269 | size_t Size = getStackSize(); |
| 270 | if (Size <= 1) |
| 271 | return nullptr; |
| 272 | return &Stack.back().first[Size - 2]; |
| 273 | } |
| 274 | const SharingMapTy *getSecondOnStackOrNull() const { |
| 275 | return const_cast<DSAStackTy&>(*this).getSecondOnStackOrNull(); |
| 276 | } |
| 277 | |
| 278 | /// Get the stack element at a certain level (previously returned by |
| 279 | /// \c getNestingLevel). |
| 280 | /// |
| 281 | /// Note that nesting levels count from outermost to innermost, and this is |
| 282 | /// the reverse of our iteration order where new inner levels are pushed at |
| 283 | /// the front of the stack. |
| 284 | SharingMapTy &getStackElemAtLevel(unsigned Level) { |
| 285 | assert(Level < getStackSize() && "no such stack element")((void)0); |
| 286 | return Stack.back().first[Level]; |
| 287 | } |
| 288 | const SharingMapTy &getStackElemAtLevel(unsigned Level) const { |
| 289 | return const_cast<DSAStackTy&>(*this).getStackElemAtLevel(Level); |
| 290 | } |
| 291 | |
| 292 | DSAVarData getDSA(const_iterator &Iter, ValueDecl *D) const; |
| 293 | |
| 294 | /// Checks if the variable is a local for OpenMP region. |
| 295 | bool isOpenMPLocal(VarDecl *D, const_iterator Iter) const; |
| 296 | |
| 297 | /// Vector of previously declared requires directives |
| 298 | SmallVector<const OMPRequiresDecl *, 2> RequiresDecls; |
| 299 | /// omp_allocator_handle_t type. |
| 300 | QualType OMPAllocatorHandleT; |
| 301 | /// omp_depend_t type. |
| 302 | QualType OMPDependT; |
| 303 | /// omp_event_handle_t type. |
| 304 | QualType OMPEventHandleT; |
| 305 | /// omp_alloctrait_t type. |
| 306 | QualType OMPAlloctraitT; |
| 307 | /// Expression for the predefined allocators. |
| 308 | Expr *OMPPredefinedAllocators[OMPAllocateDeclAttr::OMPUserDefinedMemAlloc] = { |
| 309 | nullptr}; |
| 310 | /// Vector of previously encountered target directives |
| 311 | SmallVector<SourceLocation, 2> TargetLocations; |
| 312 | SourceLocation AtomicLocation; |
| 313 | |
| 314 | public: |
| 315 | explicit DSAStackTy(Sema &S) : SemaRef(S) {} |
| 316 | |
| 317 | /// Sets omp_allocator_handle_t type. |
| 318 | void setOMPAllocatorHandleT(QualType Ty) { OMPAllocatorHandleT = Ty; } |
| 319 | /// Gets omp_allocator_handle_t type. |
| 320 | QualType getOMPAllocatorHandleT() const { return OMPAllocatorHandleT; } |
| 321 | /// Sets omp_alloctrait_t type. |
| 322 | void setOMPAlloctraitT(QualType Ty) { OMPAlloctraitT = Ty; } |
| 323 | /// Gets omp_alloctrait_t type. |
| 324 | QualType getOMPAlloctraitT() const { return OMPAlloctraitT; } |
| 325 | /// Sets the given default allocator. |
| 326 | void setAllocator(OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind, |
| 327 | Expr *Allocator) { |
| 328 | OMPPredefinedAllocators[AllocatorKind] = Allocator; |
| 329 | } |
| 330 | /// Returns the specified default allocator. |
| 331 | Expr *getAllocator(OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind) const { |
| 332 | return OMPPredefinedAllocators[AllocatorKind]; |
| 333 | } |
| 334 | /// Sets omp_depend_t type. |
| 335 | void setOMPDependT(QualType Ty) { OMPDependT = Ty; } |
| 336 | /// Gets omp_depend_t type. |
| 337 | QualType getOMPDependT() const { return OMPDependT; } |
| 338 | |
| 339 | /// Sets omp_event_handle_t type. |
| 340 | void setOMPEventHandleT(QualType Ty) { OMPEventHandleT = Ty; } |
| 341 | /// Gets omp_event_handle_t type. |
| 342 | QualType getOMPEventHandleT() const { return OMPEventHandleT; } |
| 343 | |
| 344 | bool isClauseParsingMode() const { return ClauseKindMode != OMPC_unknown; } |
| 345 | OpenMPClauseKind getClauseParsingMode() const { |
| 346 | assert(isClauseParsingMode() && "Must be in clause parsing mode.")((void)0); |
| 347 | return ClauseKindMode; |
| 348 | } |
| 349 | void setClauseParsingMode(OpenMPClauseKind K) { ClauseKindMode = K; } |
| 350 | |
| 351 | bool isBodyComplete() const { |
| 352 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 353 | return Top && Top->BodyComplete; |
| 354 | } |
| 355 | void setBodyComplete() { |
| 356 | getTopOfStack().BodyComplete = true; |
| 357 | } |
| 358 | |
| 359 | bool isForceVarCapturing() const { return ForceCapturing; } |
| 360 | void setForceVarCapturing(bool V) { ForceCapturing = V; } |
| 361 | |
| 362 | void setForceCaptureByReferenceInTargetExecutable(bool V) { |
| 363 | ForceCaptureByReferenceInTargetExecutable = V; |
| 364 | } |
| 365 | bool isForceCaptureByReferenceInTargetExecutable() const { |
| 366 | return ForceCaptureByReferenceInTargetExecutable; |
| 367 | } |
| 368 | |
| 369 | void push(OpenMPDirectiveKind DKind, const DeclarationNameInfo &DirName, |
| 370 | Scope *CurScope, SourceLocation Loc) { |
| 371 | assert(!IgnoredStackElements &&((void)0) |
| 372 | "cannot change stack while ignoring elements")((void)0); |
| 373 | if (Stack.empty() || |
| 374 | Stack.back().second != CurrentNonCapturingFunctionScope) |
| 375 | Stack.emplace_back(StackTy(), CurrentNonCapturingFunctionScope); |
| 376 | Stack.back().first.emplace_back(DKind, DirName, CurScope, Loc); |
| 377 | Stack.back().first.back().DefaultAttrLoc = Loc; |
| 378 | } |
| 379 | |
| 380 | void pop() { |
| 381 | assert(!IgnoredStackElements &&((void)0) |
| 382 | "cannot change stack while ignoring elements")((void)0); |
| 383 | assert(!Stack.back().first.empty() &&((void)0) |
| 384 | "Data-sharing attributes stack is empty!")((void)0); |
| 385 | Stack.back().first.pop_back(); |
| 386 | } |
| 387 | |
| 388 | /// RAII object to temporarily leave the scope of a directive when we want to |
| 389 | /// logically operate in its parent. |
| 390 | class ParentDirectiveScope { |
| 391 | DSAStackTy &Self; |
| 392 | bool Active; |
| 393 | public: |
| 394 | ParentDirectiveScope(DSAStackTy &Self, bool Activate) |
| 395 | : Self(Self), Active(false) { |
| 396 | if (Activate) |
| 397 | enable(); |
| 398 | } |
| 399 | ~ParentDirectiveScope() { disable(); } |
| 400 | void disable() { |
| 401 | if (Active) { |
| 402 | --Self.IgnoredStackElements; |
| 403 | Active = false; |
| 404 | } |
| 405 | } |
| 406 | void enable() { |
| 407 | if (!Active) { |
| 408 | ++Self.IgnoredStackElements; |
| 409 | Active = true; |
| 410 | } |
| 411 | } |
| 412 | }; |
| 413 | |
| 414 | /// Marks that we're started loop parsing. |
| 415 | void loopInit() { |
| 416 | assert(isOpenMPLoopDirective(getCurrentDirective()) &&((void)0) |
| 417 | "Expected loop-based directive.")((void)0); |
| 418 | getTopOfStack().LoopStart = true; |
| 419 | } |
| 420 | /// Start capturing of the variables in the loop context. |
| 421 | void loopStart() { |
| 422 | assert(isOpenMPLoopDirective(getCurrentDirective()) &&((void)0) |
| 423 | "Expected loop-based directive.")((void)0); |
| 424 | getTopOfStack().LoopStart = false; |
| 425 | } |
| 426 | /// true, if variables are captured, false otherwise. |
| 427 | bool isLoopStarted() const { |
| 428 | assert(isOpenMPLoopDirective(getCurrentDirective()) &&((void)0) |
| 429 | "Expected loop-based directive.")((void)0); |
| 430 | return !getTopOfStack().LoopStart; |
| 431 | } |
| 432 | /// Marks (or clears) declaration as possibly loop counter. |
| 433 | void resetPossibleLoopCounter(const Decl *D = nullptr) { |
| 434 | getTopOfStack().PossiblyLoopCounter = |
| 435 | D ? D->getCanonicalDecl() : D; |
| 436 | } |
| 437 | /// Gets the possible loop counter decl. |
| 438 | const Decl *getPossiblyLoopCunter() const { |
| 439 | return getTopOfStack().PossiblyLoopCounter; |
| 440 | } |
| 441 | /// Start new OpenMP region stack in new non-capturing function. |
| 442 | void pushFunction() { |
| 443 | assert(!IgnoredStackElements &&((void)0) |
| 444 | "cannot change stack while ignoring elements")((void)0); |
| 445 | const FunctionScopeInfo *CurFnScope = SemaRef.getCurFunction(); |
| 446 | assert(!isa<CapturingScopeInfo>(CurFnScope))((void)0); |
| 447 | CurrentNonCapturingFunctionScope = CurFnScope; |
| 448 | } |
| 449 | /// Pop region stack for non-capturing function. |
| 450 | void popFunction(const FunctionScopeInfo *OldFSI) { |
| 451 | assert(!IgnoredStackElements &&((void)0) |
| 452 | "cannot change stack while ignoring elements")((void)0); |
| 453 | if (!Stack.empty() && Stack.back().second == OldFSI) { |
| 454 | assert(Stack.back().first.empty())((void)0); |
| 455 | Stack.pop_back(); |
| 456 | } |
| 457 | CurrentNonCapturingFunctionScope = nullptr; |
| 458 | for (const FunctionScopeInfo *FSI : llvm::reverse(SemaRef.FunctionScopes)) { |
| 459 | if (!isa<CapturingScopeInfo>(FSI)) { |
| 460 | CurrentNonCapturingFunctionScope = FSI; |
| 461 | break; |
| 462 | } |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | void addCriticalWithHint(const OMPCriticalDirective *D, llvm::APSInt Hint) { |
| 467 | Criticals.try_emplace(D->getDirectiveName().getAsString(), D, Hint); |
| 468 | } |
| 469 | const std::pair<const OMPCriticalDirective *, llvm::APSInt> |
| 470 | getCriticalWithHint(const DeclarationNameInfo &Name) const { |
| 471 | auto I = Criticals.find(Name.getAsString()); |
| 472 | if (I != Criticals.end()) |
| 473 | return I->second; |
| 474 | return std::make_pair(nullptr, llvm::APSInt()); |
| 475 | } |
| 476 | /// If 'aligned' declaration for given variable \a D was not seen yet, |
| 477 | /// add it and return NULL; otherwise return previous occurrence's expression |
| 478 | /// for diagnostics. |
| 479 | const Expr *addUniqueAligned(const ValueDecl *D, const Expr *NewDE); |
| 480 | /// If 'nontemporal' declaration for given variable \a D was not seen yet, |
| 481 | /// add it and return NULL; otherwise return previous occurrence's expression |
| 482 | /// for diagnostics. |
| 483 | const Expr *addUniqueNontemporal(const ValueDecl *D, const Expr *NewDE); |
| 484 | |
| 485 | /// Register specified variable as loop control variable. |
| 486 | void addLoopControlVariable(const ValueDecl *D, VarDecl *Capture); |
| 487 | /// Check if the specified variable is a loop control variable for |
| 488 | /// current region. |
| 489 | /// \return The index of the loop control variable in the list of associated |
| 490 | /// for-loops (from outer to inner). |
| 491 | const LCDeclInfo isLoopControlVariable(const ValueDecl *D) const; |
| 492 | /// Check if the specified variable is a loop control variable for |
| 493 | /// parent region. |
| 494 | /// \return The index of the loop control variable in the list of associated |
| 495 | /// for-loops (from outer to inner). |
| 496 | const LCDeclInfo isParentLoopControlVariable(const ValueDecl *D) const; |
| 497 | /// Check if the specified variable is a loop control variable for |
| 498 | /// current region. |
| 499 | /// \return The index of the loop control variable in the list of associated |
| 500 | /// for-loops (from outer to inner). |
| 501 | const LCDeclInfo isLoopControlVariable(const ValueDecl *D, |
| 502 | unsigned Level) const; |
| 503 | /// Get the loop control variable for the I-th loop (or nullptr) in |
| 504 | /// parent directive. |
| 505 | const ValueDecl *getParentLoopControlVariable(unsigned I) const; |
| 506 | |
| 507 | /// Marks the specified decl \p D as used in scan directive. |
| 508 | void markDeclAsUsedInScanDirective(ValueDecl *D) { |
| 509 | if (SharingMapTy *Stack = getSecondOnStackOrNull()) |
| 510 | Stack->UsedInScanDirective.insert(D); |
| 511 | } |
| 512 | |
| 513 | /// Checks if the specified declaration was used in the inner scan directive. |
| 514 | bool isUsedInScanDirective(ValueDecl *D) const { |
| 515 | if (const SharingMapTy *Stack = getTopOfStackOrNull()) |
| 516 | return Stack->UsedInScanDirective.count(D) > 0; |
| 517 | return false; |
| 518 | } |
| 519 | |
| 520 | /// Adds explicit data sharing attribute to the specified declaration. |
| 521 | void addDSA(const ValueDecl *D, const Expr *E, OpenMPClauseKind A, |
| 522 | DeclRefExpr *PrivateCopy = nullptr, unsigned Modifier = 0, |
| 523 | bool AppliedToPointee = false); |
| 524 | |
| 525 | /// Adds additional information for the reduction items with the reduction id |
| 526 | /// represented as an operator. |
| 527 | void addTaskgroupReductionData(const ValueDecl *D, SourceRange SR, |
| 528 | BinaryOperatorKind BOK); |
| 529 | /// Adds additional information for the reduction items with the reduction id |
| 530 | /// represented as reduction identifier. |
| 531 | void addTaskgroupReductionData(const ValueDecl *D, SourceRange SR, |
| 532 | const Expr *ReductionRef); |
| 533 | /// Returns the location and reduction operation from the innermost parent |
| 534 | /// region for the given \p D. |
| 535 | const DSAVarData |
| 536 | getTopMostTaskgroupReductionData(const ValueDecl *D, SourceRange &SR, |
| 537 | BinaryOperatorKind &BOK, |
| 538 | Expr *&TaskgroupDescriptor) const; |
| 539 | /// Returns the location and reduction operation from the innermost parent |
| 540 | /// region for the given \p D. |
| 541 | const DSAVarData |
| 542 | getTopMostTaskgroupReductionData(const ValueDecl *D, SourceRange &SR, |
| 543 | const Expr *&ReductionRef, |
| 544 | Expr *&TaskgroupDescriptor) const; |
| 545 | /// Return reduction reference expression for the current taskgroup or |
| 546 | /// parallel/worksharing directives with task reductions. |
| 547 | Expr *getTaskgroupReductionRef() const { |
| 548 | assert((getTopOfStack().Directive == OMPD_taskgroup ||((void)0) |
| 549 | ((isOpenMPParallelDirective(getTopOfStack().Directive) ||((void)0) |
| 550 | isOpenMPWorksharingDirective(getTopOfStack().Directive)) &&((void)0) |
| 551 | !isOpenMPSimdDirective(getTopOfStack().Directive))) &&((void)0) |
| 552 | "taskgroup reference expression requested for non taskgroup or "((void)0) |
| 553 | "parallel/worksharing directive.")((void)0); |
| 554 | return getTopOfStack().TaskgroupReductionRef; |
| 555 | } |
| 556 | /// Checks if the given \p VD declaration is actually a taskgroup reduction |
| 557 | /// descriptor variable at the \p Level of OpenMP regions. |
| 558 | bool isTaskgroupReductionRef(const ValueDecl *VD, unsigned Level) const { |
| 559 | return getStackElemAtLevel(Level).TaskgroupReductionRef && |
| 560 | cast<DeclRefExpr>(getStackElemAtLevel(Level).TaskgroupReductionRef) |
| 561 | ->getDecl() == VD; |
| 562 | } |
| 563 | |
| 564 | /// Returns data sharing attributes from top of the stack for the |
| 565 | /// specified declaration. |
| 566 | const DSAVarData getTopDSA(ValueDecl *D, bool FromParent); |
| 567 | /// Returns data-sharing attributes for the specified declaration. |
| 568 | const DSAVarData getImplicitDSA(ValueDecl *D, bool FromParent) const; |
| 569 | /// Returns data-sharing attributes for the specified declaration. |
| 570 | const DSAVarData getImplicitDSA(ValueDecl *D, unsigned Level) const; |
| 571 | /// Checks if the specified variables has data-sharing attributes which |
| 572 | /// match specified \a CPred predicate in any directive which matches \a DPred |
| 573 | /// predicate. |
| 574 | const DSAVarData |
| 575 | hasDSA(ValueDecl *D, |
| 576 | const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred, |
| 577 | const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred, |
| 578 | bool FromParent) const; |
| 579 | /// Checks if the specified variables has data-sharing attributes which |
| 580 | /// match specified \a CPred predicate in any innermost directive which |
| 581 | /// matches \a DPred predicate. |
| 582 | const DSAVarData |
| 583 | hasInnermostDSA(ValueDecl *D, |
| 584 | const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred, |
| 585 | const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred, |
| 586 | bool FromParent) const; |
| 587 | /// Checks if the specified variables has explicit data-sharing |
| 588 | /// attributes which match specified \a CPred predicate at the specified |
| 589 | /// OpenMP region. |
| 590 | bool |
| 591 | hasExplicitDSA(const ValueDecl *D, |
| 592 | const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred, |
| 593 | unsigned Level, bool NotLastprivate = false) const; |
| 594 | |
| 595 | /// Returns true if the directive at level \Level matches in the |
| 596 | /// specified \a DPred predicate. |
| 597 | bool hasExplicitDirective( |
| 598 | const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred, |
| 599 | unsigned Level) const; |
| 600 | |
| 601 | /// Finds a directive which matches specified \a DPred predicate. |
| 602 | bool hasDirective( |
| 603 | const llvm::function_ref<bool( |
| 604 | OpenMPDirectiveKind, const DeclarationNameInfo &, SourceLocation)> |
| 605 | DPred, |
| 606 | bool FromParent) const; |
| 607 | |
| 608 | /// Returns currently analyzed directive. |
| 609 | OpenMPDirectiveKind getCurrentDirective() const { |
| 610 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 611 | return Top ? Top->Directive : OMPD_unknown; |
| 612 | } |
| 613 | /// Returns directive kind at specified level. |
| 614 | OpenMPDirectiveKind getDirective(unsigned Level) const { |
| 615 | assert(!isStackEmpty() && "No directive at specified level.")((void)0); |
| 616 | return getStackElemAtLevel(Level).Directive; |
| 617 | } |
| 618 | /// Returns the capture region at the specified level. |
| 619 | OpenMPDirectiveKind getCaptureRegion(unsigned Level, |
| 620 | unsigned OpenMPCaptureLevel) const { |
| 621 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; |
| 622 | getOpenMPCaptureRegions(CaptureRegions, getDirective(Level)); |
| 623 | return CaptureRegions[OpenMPCaptureLevel]; |
| 624 | } |
| 625 | /// Returns parent directive. |
| 626 | OpenMPDirectiveKind getParentDirective() const { |
| 627 | const SharingMapTy *Parent = getSecondOnStackOrNull(); |
| 628 | return Parent ? Parent->Directive : OMPD_unknown; |
| 629 | } |
| 630 | |
| 631 | /// Add requires decl to internal vector |
| 632 | void addRequiresDecl(OMPRequiresDecl *RD) { |
| 633 | RequiresDecls.push_back(RD); |
| 634 | } |
| 635 | |
| 636 | /// Checks if the defined 'requires' directive has specified type of clause. |
| 637 | template <typename ClauseType> |
| 638 | bool hasRequiresDeclWithClause() const { |
| 639 | return llvm::any_of(RequiresDecls, [](const OMPRequiresDecl *D) { |
| 640 | return llvm::any_of(D->clauselists(), [](const OMPClause *C) { |
| 641 | return isa<ClauseType>(C); |
| 642 | }); |
| 643 | }); |
| 644 | } |
| 645 | |
| 646 | /// Checks for a duplicate clause amongst previously declared requires |
| 647 | /// directives |
| 648 | bool hasDuplicateRequiresClause(ArrayRef<OMPClause *> ClauseList) const { |
| 649 | bool IsDuplicate = false; |
| 650 | for (OMPClause *CNew : ClauseList) { |
| 651 | for (const OMPRequiresDecl *D : RequiresDecls) { |
| 652 | for (const OMPClause *CPrev : D->clauselists()) { |
| 653 | if (CNew->getClauseKind() == CPrev->getClauseKind()) { |
| 654 | SemaRef.Diag(CNew->getBeginLoc(), |
| 655 | diag::err_omp_requires_clause_redeclaration) |
| 656 | << getOpenMPClauseName(CNew->getClauseKind()); |
| 657 | SemaRef.Diag(CPrev->getBeginLoc(), |
| 658 | diag::note_omp_requires_previous_clause) |
| 659 | << getOpenMPClauseName(CPrev->getClauseKind()); |
| 660 | IsDuplicate = true; |
| 661 | } |
| 662 | } |
| 663 | } |
| 664 | } |
| 665 | return IsDuplicate; |
| 666 | } |
| 667 | |
| 668 | /// Add location of previously encountered target to internal vector |
| 669 | void addTargetDirLocation(SourceLocation LocStart) { |
| 670 | TargetLocations.push_back(LocStart); |
| 671 | } |
| 672 | |
| 673 | /// Add location for the first encountered atomicc directive. |
| 674 | void addAtomicDirectiveLoc(SourceLocation Loc) { |
| 675 | if (AtomicLocation.isInvalid()) |
| 676 | AtomicLocation = Loc; |
| 677 | } |
| 678 | |
| 679 | /// Returns the location of the first encountered atomic directive in the |
| 680 | /// module. |
| 681 | SourceLocation getAtomicDirectiveLoc() const { |
| 682 | return AtomicLocation; |
| 683 | } |
| 684 | |
| 685 | // Return previously encountered target region locations. |
| 686 | ArrayRef<SourceLocation> getEncounteredTargetLocs() const { |
| 687 | return TargetLocations; |
| 688 | } |
| 689 | |
| 690 | /// Set default data sharing attribute to none. |
| 691 | void setDefaultDSANone(SourceLocation Loc) { |
| 692 | getTopOfStack().DefaultAttr = DSA_none; |
| 693 | getTopOfStack().DefaultAttrLoc = Loc; |
| 694 | } |
| 695 | /// Set default data sharing attribute to shared. |
| 696 | void setDefaultDSAShared(SourceLocation Loc) { |
| 697 | getTopOfStack().DefaultAttr = DSA_shared; |
| 698 | getTopOfStack().DefaultAttrLoc = Loc; |
| 699 | } |
| 700 | /// Set default data sharing attribute to firstprivate. |
| 701 | void setDefaultDSAFirstPrivate(SourceLocation Loc) { |
| 702 | getTopOfStack().DefaultAttr = DSA_firstprivate; |
| 703 | getTopOfStack().DefaultAttrLoc = Loc; |
| 704 | } |
| 705 | /// Set default data mapping attribute to Modifier:Kind |
| 706 | void setDefaultDMAAttr(OpenMPDefaultmapClauseModifier M, |
| 707 | OpenMPDefaultmapClauseKind Kind, |
| 708 | SourceLocation Loc) { |
| 709 | DefaultmapInfo &DMI = getTopOfStack().DefaultmapMap[Kind]; |
| 710 | DMI.ImplicitBehavior = M; |
| 711 | DMI.SLoc = Loc; |
| 712 | } |
| 713 | /// Check whether the implicit-behavior has been set in defaultmap |
| 714 | bool checkDefaultmapCategory(OpenMPDefaultmapClauseKind VariableCategory) { |
| 715 | if (VariableCategory == OMPC_DEFAULTMAP_unknown) |
| 716 | return getTopOfStack() |
| 717 | .DefaultmapMap[OMPC_DEFAULTMAP_aggregate] |
| 718 | .ImplicitBehavior != OMPC_DEFAULTMAP_MODIFIER_unknown || |
| 719 | getTopOfStack() |
| 720 | .DefaultmapMap[OMPC_DEFAULTMAP_scalar] |
| 721 | .ImplicitBehavior != OMPC_DEFAULTMAP_MODIFIER_unknown || |
| 722 | getTopOfStack() |
| 723 | .DefaultmapMap[OMPC_DEFAULTMAP_pointer] |
| 724 | .ImplicitBehavior != OMPC_DEFAULTMAP_MODIFIER_unknown; |
| 725 | return getTopOfStack().DefaultmapMap[VariableCategory].ImplicitBehavior != |
| 726 | OMPC_DEFAULTMAP_MODIFIER_unknown; |
| 727 | } |
| 728 | |
| 729 | DefaultDataSharingAttributes getDefaultDSA(unsigned Level) const { |
| 730 | return getStackSize() <= Level ? DSA_unspecified |
| 731 | : getStackElemAtLevel(Level).DefaultAttr; |
| 732 | } |
| 733 | DefaultDataSharingAttributes getDefaultDSA() const { |
| 734 | return isStackEmpty() ? DSA_unspecified |
| 735 | : getTopOfStack().DefaultAttr; |
| 736 | } |
| 737 | SourceLocation getDefaultDSALocation() const { |
| 738 | return isStackEmpty() ? SourceLocation() |
| 739 | : getTopOfStack().DefaultAttrLoc; |
| 740 | } |
| 741 | OpenMPDefaultmapClauseModifier |
| 742 | getDefaultmapModifier(OpenMPDefaultmapClauseKind Kind) const { |
| 743 | return isStackEmpty() |
| 744 | ? OMPC_DEFAULTMAP_MODIFIER_unknown |
| 745 | : getTopOfStack().DefaultmapMap[Kind].ImplicitBehavior; |
| 746 | } |
| 747 | OpenMPDefaultmapClauseModifier |
| 748 | getDefaultmapModifierAtLevel(unsigned Level, |
| 749 | OpenMPDefaultmapClauseKind Kind) const { |
| 750 | return getStackElemAtLevel(Level).DefaultmapMap[Kind].ImplicitBehavior; |
| 751 | } |
| 752 | bool isDefaultmapCapturedByRef(unsigned Level, |
| 753 | OpenMPDefaultmapClauseKind Kind) const { |
| 754 | OpenMPDefaultmapClauseModifier M = |
| 755 | getDefaultmapModifierAtLevel(Level, Kind); |
| 756 | if (Kind == OMPC_DEFAULTMAP_scalar || Kind == OMPC_DEFAULTMAP_pointer) { |
| 757 | return (M == OMPC_DEFAULTMAP_MODIFIER_alloc) || |
| 758 | (M == OMPC_DEFAULTMAP_MODIFIER_to) || |
| 759 | (M == OMPC_DEFAULTMAP_MODIFIER_from) || |
| 760 | (M == OMPC_DEFAULTMAP_MODIFIER_tofrom); |
| 761 | } |
| 762 | return true; |
| 763 | } |
| 764 | static bool mustBeFirstprivateBase(OpenMPDefaultmapClauseModifier M, |
| 765 | OpenMPDefaultmapClauseKind Kind) { |
| 766 | switch (Kind) { |
| 767 | case OMPC_DEFAULTMAP_scalar: |
| 768 | case OMPC_DEFAULTMAP_pointer: |
| 769 | return (M == OMPC_DEFAULTMAP_MODIFIER_unknown) || |
| 770 | (M == OMPC_DEFAULTMAP_MODIFIER_firstprivate) || |
| 771 | (M == OMPC_DEFAULTMAP_MODIFIER_default); |
| 772 | case OMPC_DEFAULTMAP_aggregate: |
| 773 | return M == OMPC_DEFAULTMAP_MODIFIER_firstprivate; |
| 774 | default: |
| 775 | break; |
| 776 | } |
| 777 | llvm_unreachable("Unexpected OpenMPDefaultmapClauseKind enum")__builtin_unreachable(); |
| 778 | } |
| 779 | bool mustBeFirstprivateAtLevel(unsigned Level, |
| 780 | OpenMPDefaultmapClauseKind Kind) const { |
| 781 | OpenMPDefaultmapClauseModifier M = |
| 782 | getDefaultmapModifierAtLevel(Level, Kind); |
| 783 | return mustBeFirstprivateBase(M, Kind); |
| 784 | } |
| 785 | bool mustBeFirstprivate(OpenMPDefaultmapClauseKind Kind) const { |
| 786 | OpenMPDefaultmapClauseModifier M = getDefaultmapModifier(Kind); |
| 787 | return mustBeFirstprivateBase(M, Kind); |
| 788 | } |
| 789 | |
| 790 | /// Checks if the specified variable is a threadprivate. |
| 791 | bool isThreadPrivate(VarDecl *D) { |
| 792 | const DSAVarData DVar = getTopDSA(D, false); |
| 793 | return isOpenMPThreadPrivate(DVar.CKind); |
| 794 | } |
| 795 | |
| 796 | /// Marks current region as ordered (it has an 'ordered' clause). |
| 797 | void setOrderedRegion(bool IsOrdered, const Expr *Param, |
| 798 | OMPOrderedClause *Clause) { |
| 799 | if (IsOrdered) |
| 800 | getTopOfStack().OrderedRegion.emplace(Param, Clause); |
| 801 | else |
| 802 | getTopOfStack().OrderedRegion.reset(); |
| 803 | } |
| 804 | /// Returns true, if region is ordered (has associated 'ordered' clause), |
| 805 | /// false - otherwise. |
| 806 | bool isOrderedRegion() const { |
| 807 | if (const SharingMapTy *Top = getTopOfStackOrNull()) |
| 808 | return Top->OrderedRegion.hasValue(); |
| 809 | return false; |
| 810 | } |
| 811 | /// Returns optional parameter for the ordered region. |
| 812 | std::pair<const Expr *, OMPOrderedClause *> getOrderedRegionParam() const { |
| 813 | if (const SharingMapTy *Top = getTopOfStackOrNull()) |
| 814 | if (Top->OrderedRegion.hasValue()) |
| 815 | return Top->OrderedRegion.getValue(); |
| 816 | return std::make_pair(nullptr, nullptr); |
| 817 | } |
| 818 | /// Returns true, if parent region is ordered (has associated |
| 819 | /// 'ordered' clause), false - otherwise. |
| 820 | bool isParentOrderedRegion() const { |
| 821 | if (const SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 822 | return Parent->OrderedRegion.hasValue(); |
| 823 | return false; |
| 824 | } |
| 825 | /// Returns optional parameter for the ordered region. |
| 826 | std::pair<const Expr *, OMPOrderedClause *> |
| 827 | getParentOrderedRegionParam() const { |
| 828 | if (const SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 829 | if (Parent->OrderedRegion.hasValue()) |
| 830 | return Parent->OrderedRegion.getValue(); |
| 831 | return std::make_pair(nullptr, nullptr); |
| 832 | } |
| 833 | /// Marks current region as nowait (it has a 'nowait' clause). |
| 834 | void setNowaitRegion(bool IsNowait = true) { |
| 835 | getTopOfStack().NowaitRegion = IsNowait; |
| 836 | } |
| 837 | /// Returns true, if parent region is nowait (has associated |
| 838 | /// 'nowait' clause), false - otherwise. |
| 839 | bool isParentNowaitRegion() const { |
| 840 | if (const SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 841 | return Parent->NowaitRegion; |
| 842 | return false; |
| 843 | } |
| 844 | /// Marks parent region as cancel region. |
| 845 | void setParentCancelRegion(bool Cancel = true) { |
| 846 | if (SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 847 | Parent->CancelRegion |= Cancel; |
| 848 | } |
| 849 | /// Return true if current region has inner cancel construct. |
| 850 | bool isCancelRegion() const { |
| 851 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 852 | return Top ? Top->CancelRegion : false; |
| 853 | } |
| 854 | |
| 855 | /// Mark that parent region already has scan directive. |
| 856 | void setParentHasScanDirective(SourceLocation Loc) { |
| 857 | if (SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 858 | Parent->PrevScanLocation = Loc; |
| 859 | } |
| 860 | /// Return true if current region has inner cancel construct. |
| 861 | bool doesParentHasScanDirective() const { |
| 862 | const SharingMapTy *Top = getSecondOnStackOrNull(); |
| 863 | return Top ? Top->PrevScanLocation.isValid() : false; |
| 864 | } |
| 865 | /// Return true if current region has inner cancel construct. |
| 866 | SourceLocation getParentScanDirectiveLoc() const { |
| 867 | const SharingMapTy *Top = getSecondOnStackOrNull(); |
| 868 | return Top ? Top->PrevScanLocation : SourceLocation(); |
| 869 | } |
| 870 | /// Mark that parent region already has ordered directive. |
| 871 | void setParentHasOrderedDirective(SourceLocation Loc) { |
| 872 | if (SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 873 | Parent->PrevOrderedLocation = Loc; |
| 874 | } |
| 875 | /// Return true if current region has inner ordered construct. |
| 876 | bool doesParentHasOrderedDirective() const { |
| 877 | const SharingMapTy *Top = getSecondOnStackOrNull(); |
| 878 | return Top ? Top->PrevOrderedLocation.isValid() : false; |
| 879 | } |
| 880 | /// Returns the location of the previously specified ordered directive. |
| 881 | SourceLocation getParentOrderedDirectiveLoc() const { |
| 882 | const SharingMapTy *Top = getSecondOnStackOrNull(); |
| 883 | return Top ? Top->PrevOrderedLocation : SourceLocation(); |
| 884 | } |
| 885 | |
| 886 | /// Set collapse value for the region. |
| 887 | void setAssociatedLoops(unsigned Val) { |
| 888 | getTopOfStack().AssociatedLoops = Val; |
| 889 | if (Val > 1) |
| 890 | getTopOfStack().HasMutipleLoops = true; |
| 891 | } |
| 892 | /// Return collapse value for region. |
| 893 | unsigned getAssociatedLoops() const { |
| 894 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 895 | return Top ? Top->AssociatedLoops : 0; |
| 896 | } |
| 897 | /// Returns true if the construct is associated with multiple loops. |
| 898 | bool hasMutipleLoops() const { |
| 899 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 900 | return Top ? Top->HasMutipleLoops : false; |
| 901 | } |
| 902 | |
| 903 | /// Marks current target region as one with closely nested teams |
| 904 | /// region. |
| 905 | void setParentTeamsRegionLoc(SourceLocation TeamsRegionLoc) { |
| 906 | if (SharingMapTy *Parent = getSecondOnStackOrNull()) |
| 907 | Parent->InnerTeamsRegionLoc = TeamsRegionLoc; |
| 908 | } |
| 909 | /// Returns true, if current region has closely nested teams region. |
| 910 | bool hasInnerTeamsRegion() const { |
| 911 | return getInnerTeamsRegionLoc().isValid(); |
| 912 | } |
| 913 | /// Returns location of the nested teams region (if any). |
| 914 | SourceLocation getInnerTeamsRegionLoc() const { |
| 915 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 916 | return Top ? Top->InnerTeamsRegionLoc : SourceLocation(); |
| 917 | } |
| 918 | |
| 919 | Scope *getCurScope() const { |
| 920 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 921 | return Top ? Top->CurScope : nullptr; |
| 922 | } |
| 923 | void setContext(DeclContext *DC) { getTopOfStack().Context = DC; } |
| 924 | SourceLocation getConstructLoc() const { |
| 925 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 926 | return Top ? Top->ConstructLoc : SourceLocation(); |
| 927 | } |
| 928 | |
| 929 | /// Do the check specified in \a Check to all component lists and return true |
| 930 | /// if any issue is found. |
| 931 | bool checkMappableExprComponentListsForDecl( |
| 932 | const ValueDecl *VD, bool CurrentRegionOnly, |
| 933 | const llvm::function_ref< |
| 934 | bool(OMPClauseMappableExprCommon::MappableExprComponentListRef, |
| 935 | OpenMPClauseKind)> |
| 936 | Check) const { |
| 937 | if (isStackEmpty()) |
| 938 | return false; |
| 939 | auto SI = begin(); |
| 940 | auto SE = end(); |
| 941 | |
| 942 | if (SI == SE) |
| 943 | return false; |
| 944 | |
| 945 | if (CurrentRegionOnly) |
| 946 | SE = std::next(SI); |
| 947 | else |
| 948 | std::advance(SI, 1); |
| 949 | |
| 950 | for (; SI != SE; ++SI) { |
| 951 | auto MI = SI->MappedExprComponents.find(VD); |
| 952 | if (MI != SI->MappedExprComponents.end()) |
| 953 | for (OMPClauseMappableExprCommon::MappableExprComponentListRef L : |
| 954 | MI->second.Components) |
| 955 | if (Check(L, MI->second.Kind)) |
| 956 | return true; |
| 957 | } |
| 958 | return false; |
| 959 | } |
| 960 | |
| 961 | /// Do the check specified in \a Check to all component lists at a given level |
| 962 | /// and return true if any issue is found. |
| 963 | bool checkMappableExprComponentListsForDeclAtLevel( |
| 964 | const ValueDecl *VD, unsigned Level, |
| 965 | const llvm::function_ref< |
| 966 | bool(OMPClauseMappableExprCommon::MappableExprComponentListRef, |
| 967 | OpenMPClauseKind)> |
| 968 | Check) const { |
| 969 | if (getStackSize() <= Level) |
| 970 | return false; |
| 971 | |
| 972 | const SharingMapTy &StackElem = getStackElemAtLevel(Level); |
| 973 | auto MI = StackElem.MappedExprComponents.find(VD); |
| 974 | if (MI != StackElem.MappedExprComponents.end()) |
| 975 | for (OMPClauseMappableExprCommon::MappableExprComponentListRef L : |
| 976 | MI->second.Components) |
| 977 | if (Check(L, MI->second.Kind)) |
| 978 | return true; |
| 979 | return false; |
| 980 | } |
| 981 | |
| 982 | /// Create a new mappable expression component list associated with a given |
| 983 | /// declaration and initialize it with the provided list of components. |
| 984 | void addMappableExpressionComponents( |
| 985 | const ValueDecl *VD, |
| 986 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components, |
| 987 | OpenMPClauseKind WhereFoundClauseKind) { |
| 988 | MappedExprComponentTy &MEC = getTopOfStack().MappedExprComponents[VD]; |
| 989 | // Create new entry and append the new components there. |
| 990 | MEC.Components.resize(MEC.Components.size() + 1); |
| 991 | MEC.Components.back().append(Components.begin(), Components.end()); |
| 992 | MEC.Kind = WhereFoundClauseKind; |
| 993 | } |
| 994 | |
| 995 | unsigned getNestingLevel() const { |
| 996 | assert(!isStackEmpty())((void)0); |
| 997 | return getStackSize() - 1; |
| 998 | } |
| 999 | void addDoacrossDependClause(OMPDependClause *C, |
| 1000 | const OperatorOffsetTy &OpsOffs) { |
| 1001 | SharingMapTy *Parent = getSecondOnStackOrNull(); |
| 1002 | assert(Parent && isOpenMPWorksharingDirective(Parent->Directive))((void)0); |
| 1003 | Parent->DoacrossDepends.try_emplace(C, OpsOffs); |
| 1004 | } |
| 1005 | llvm::iterator_range<DoacrossDependMapTy::const_iterator> |
| 1006 | getDoacrossDependClauses() const { |
| 1007 | const SharingMapTy &StackElem = getTopOfStack(); |
| 1008 | if (isOpenMPWorksharingDirective(StackElem.Directive)) { |
| 1009 | const DoacrossDependMapTy &Ref = StackElem.DoacrossDepends; |
| 1010 | return llvm::make_range(Ref.begin(), Ref.end()); |
| 1011 | } |
| 1012 | return llvm::make_range(StackElem.DoacrossDepends.end(), |
| 1013 | StackElem.DoacrossDepends.end()); |
| 1014 | } |
| 1015 | |
| 1016 | // Store types of classes which have been explicitly mapped |
| 1017 | void addMappedClassesQualTypes(QualType QT) { |
| 1018 | SharingMapTy &StackElem = getTopOfStack(); |
| 1019 | StackElem.MappedClassesQualTypes.insert(QT); |
| 1020 | } |
| 1021 | |
| 1022 | // Return set of mapped classes types |
| 1023 | bool isClassPreviouslyMapped(QualType QT) const { |
| 1024 | const SharingMapTy &StackElem = getTopOfStack(); |
| 1025 | return StackElem.MappedClassesQualTypes.count(QT) != 0; |
| 1026 | } |
| 1027 | |
| 1028 | /// Adds global declare target to the parent target region. |
| 1029 | void addToParentTargetRegionLinkGlobals(DeclRefExpr *E) { |
| 1030 | assert(*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(((void)0) |
| 1031 | E->getDecl()) == OMPDeclareTargetDeclAttr::MT_Link &&((void)0) |
| 1032 | "Expected declare target link global.")((void)0); |
| 1033 | for (auto &Elem : *this) { |
| 1034 | if (isOpenMPTargetExecutionDirective(Elem.Directive)) { |
| 1035 | Elem.DeclareTargetLinkVarDecls.push_back(E); |
| 1036 | return; |
| 1037 | } |
| 1038 | } |
| 1039 | } |
| 1040 | |
| 1041 | /// Returns the list of globals with declare target link if current directive |
| 1042 | /// is target. |
| 1043 | ArrayRef<DeclRefExpr *> getLinkGlobals() const { |
| 1044 | assert(isOpenMPTargetExecutionDirective(getCurrentDirective()) &&((void)0) |
| 1045 | "Expected target executable directive.")((void)0); |
| 1046 | return getTopOfStack().DeclareTargetLinkVarDecls; |
| 1047 | } |
| 1048 | |
| 1049 | /// Adds list of allocators expressions. |
| 1050 | void addInnerAllocatorExpr(Expr *E) { |
| 1051 | getTopOfStack().InnerUsedAllocators.push_back(E); |
| 1052 | } |
| 1053 | /// Return list of used allocators. |
| 1054 | ArrayRef<Expr *> getInnerAllocators() const { |
| 1055 | return getTopOfStack().InnerUsedAllocators; |
| 1056 | } |
| 1057 | /// Marks the declaration as implicitly firstprivate nin the task-based |
| 1058 | /// regions. |
| 1059 | void addImplicitTaskFirstprivate(unsigned Level, Decl *D) { |
| 1060 | getStackElemAtLevel(Level).ImplicitTaskFirstprivates.insert(D); |
| 1061 | } |
| 1062 | /// Checks if the decl is implicitly firstprivate in the task-based region. |
| 1063 | bool isImplicitTaskFirstprivate(Decl *D) const { |
| 1064 | return getTopOfStack().ImplicitTaskFirstprivates.count(D) > 0; |
| 1065 | } |
| 1066 | |
| 1067 | /// Marks decl as used in uses_allocators clause as the allocator. |
| 1068 | void addUsesAllocatorsDecl(const Decl *D, UsesAllocatorsDeclKind Kind) { |
| 1069 | getTopOfStack().UsesAllocatorsDecls.try_emplace(D, Kind); |
| 1070 | } |
| 1071 | /// Checks if specified decl is used in uses allocator clause as the |
| 1072 | /// allocator. |
| 1073 | Optional<UsesAllocatorsDeclKind> isUsesAllocatorsDecl(unsigned Level, |
| 1074 | const Decl *D) const { |
| 1075 | const SharingMapTy &StackElem = getTopOfStack(); |
| 1076 | auto I = StackElem.UsesAllocatorsDecls.find(D); |
| 1077 | if (I == StackElem.UsesAllocatorsDecls.end()) |
| 1078 | return None; |
| 1079 | return I->getSecond(); |
| 1080 | } |
| 1081 | Optional<UsesAllocatorsDeclKind> isUsesAllocatorsDecl(const Decl *D) const { |
| 1082 | const SharingMapTy &StackElem = getTopOfStack(); |
| 1083 | auto I = StackElem.UsesAllocatorsDecls.find(D); |
| 1084 | if (I == StackElem.UsesAllocatorsDecls.end()) |
| 1085 | return None; |
| 1086 | return I->getSecond(); |
| 1087 | } |
| 1088 | |
| 1089 | void addDeclareMapperVarRef(Expr *Ref) { |
| 1090 | SharingMapTy &StackElem = getTopOfStack(); |
| 1091 | StackElem.DeclareMapperVar = Ref; |
| 1092 | } |
| 1093 | const Expr *getDeclareMapperVarRef() const { |
| 1094 | const SharingMapTy *Top = getTopOfStackOrNull(); |
| 1095 | return Top ? Top->DeclareMapperVar : nullptr; |
| 1096 | } |
| 1097 | }; |
| 1098 | |
| 1099 | bool isImplicitTaskingRegion(OpenMPDirectiveKind DKind) { |
| 1100 | return isOpenMPParallelDirective(DKind) || isOpenMPTeamsDirective(DKind); |
| 1101 | } |
| 1102 | |
| 1103 | bool isImplicitOrExplicitTaskingRegion(OpenMPDirectiveKind DKind) { |
| 1104 | return isImplicitTaskingRegion(DKind) || isOpenMPTaskingDirective(DKind) || |
| 1105 | DKind == OMPD_unknown; |
| 1106 | } |
| 1107 | |
| 1108 | } // namespace |
| 1109 | |
| 1110 | static const Expr *getExprAsWritten(const Expr *E) { |
| 1111 | if (const auto *FE = dyn_cast<FullExpr>(E)) |
| 1112 | E = FE->getSubExpr(); |
| 1113 | |
| 1114 | if (const auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E)) |
| 1115 | E = MTE->getSubExpr(); |
| 1116 | |
| 1117 | while (const auto *Binder = dyn_cast<CXXBindTemporaryExpr>(E)) |
| 1118 | E = Binder->getSubExpr(); |
| 1119 | |
| 1120 | if (const auto *ICE = dyn_cast<ImplicitCastExpr>(E)) |
| 1121 | E = ICE->getSubExprAsWritten(); |
| 1122 | return E->IgnoreParens(); |
| 1123 | } |
| 1124 | |
| 1125 | static Expr *getExprAsWritten(Expr *E) { |
| 1126 | return const_cast<Expr *>(getExprAsWritten(const_cast<const Expr *>(E))); |
| 1127 | } |
| 1128 | |
| 1129 | static const ValueDecl *getCanonicalDecl(const ValueDecl *D) { |
| 1130 | if (const auto *CED = dyn_cast<OMPCapturedExprDecl>(D)) |
| 1131 | if (const auto *ME = dyn_cast<MemberExpr>(getExprAsWritten(CED->getInit()))) |
| 1132 | D = ME->getMemberDecl(); |
| 1133 | const auto *VD = dyn_cast<VarDecl>(D); |
| 1134 | const auto *FD = dyn_cast<FieldDecl>(D); |
| 1135 | if (VD != nullptr) { |
| 1136 | VD = VD->getCanonicalDecl(); |
| 1137 | D = VD; |
| 1138 | } else { |
| 1139 | assert(FD)((void)0); |
| 1140 | FD = FD->getCanonicalDecl(); |
| 1141 | D = FD; |
| 1142 | } |
| 1143 | return D; |
| 1144 | } |
| 1145 | |
| 1146 | static ValueDecl *getCanonicalDecl(ValueDecl *D) { |
| 1147 | return const_cast<ValueDecl *>( |
| 1148 | getCanonicalDecl(const_cast<const ValueDecl *>(D))); |
| 1149 | } |
| 1150 | |
| 1151 | DSAStackTy::DSAVarData DSAStackTy::getDSA(const_iterator &Iter, |
| 1152 | ValueDecl *D) const { |
| 1153 | D = getCanonicalDecl(D); |
| 1154 | auto *VD = dyn_cast<VarDecl>(D); |
| 1155 | const auto *FD = dyn_cast<FieldDecl>(D); |
| 1156 | DSAVarData DVar; |
| 1157 | if (Iter == end()) { |
| 1158 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1159 | // in a region but not in construct] |
| 1160 | // File-scope or namespace-scope variables referenced in called routines |
| 1161 | // in the region are shared unless they appear in a threadprivate |
| 1162 | // directive. |
| 1163 | if (VD && !VD->isFunctionOrMethodVarDecl() && !isa<ParmVarDecl>(VD)) |
| 1164 | DVar.CKind = OMPC_shared; |
| 1165 | |
| 1166 | // OpenMP [2.9.1.2, Data-sharing Attribute Rules for Variables Referenced |
| 1167 | // in a region but not in construct] |
| 1168 | // Variables with static storage duration that are declared in called |
| 1169 | // routines in the region are shared. |
| 1170 | if (VD && VD->hasGlobalStorage()) |
| 1171 | DVar.CKind = OMPC_shared; |
| 1172 | |
| 1173 | // Non-static data members are shared by default. |
| 1174 | if (FD) |
| 1175 | DVar.CKind = OMPC_shared; |
| 1176 | |
| 1177 | return DVar; |
| 1178 | } |
| 1179 | |
| 1180 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1181 | // in a Construct, C/C++, predetermined, p.1] |
| 1182 | // Variables with automatic storage duration that are declared in a scope |
| 1183 | // inside the construct are private. |
| 1184 | if (VD && isOpenMPLocal(VD, Iter) && VD->isLocalVarDecl() && |
| 1185 | (VD->getStorageClass() == SC_Auto || VD->getStorageClass() == SC_None)) { |
| 1186 | DVar.CKind = OMPC_private; |
| 1187 | return DVar; |
| 1188 | } |
| 1189 | |
| 1190 | DVar.DKind = Iter->Directive; |
| 1191 | // Explicitly specified attributes and local variables with predetermined |
| 1192 | // attributes. |
| 1193 | if (Iter->SharingMap.count(D)) { |
| 1194 | const DSAInfo &Data = Iter->SharingMap.lookup(D); |
| 1195 | DVar.RefExpr = Data.RefExpr.getPointer(); |
| 1196 | DVar.PrivateCopy = Data.PrivateCopy; |
| 1197 | DVar.CKind = Data.Attributes; |
| 1198 | DVar.ImplicitDSALoc = Iter->DefaultAttrLoc; |
| 1199 | DVar.Modifier = Data.Modifier; |
| 1200 | DVar.AppliedToPointee = Data.AppliedToPointee; |
| 1201 | return DVar; |
| 1202 | } |
| 1203 | |
| 1204 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1205 | // in a Construct, C/C++, implicitly determined, p.1] |
| 1206 | // In a parallel or task construct, the data-sharing attributes of these |
| 1207 | // variables are determined by the default clause, if present. |
| 1208 | switch (Iter->DefaultAttr) { |
| 1209 | case DSA_shared: |
| 1210 | DVar.CKind = OMPC_shared; |
| 1211 | DVar.ImplicitDSALoc = Iter->DefaultAttrLoc; |
| 1212 | return DVar; |
| 1213 | case DSA_none: |
| 1214 | return DVar; |
| 1215 | case DSA_firstprivate: |
| 1216 | if (VD->getStorageDuration() == SD_Static && |
| 1217 | VD->getDeclContext()->isFileContext()) { |
| 1218 | DVar.CKind = OMPC_unknown; |
| 1219 | } else { |
| 1220 | DVar.CKind = OMPC_firstprivate; |
| 1221 | } |
| 1222 | DVar.ImplicitDSALoc = Iter->DefaultAttrLoc; |
| 1223 | return DVar; |
| 1224 | case DSA_unspecified: |
| 1225 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1226 | // in a Construct, implicitly determined, p.2] |
| 1227 | // In a parallel construct, if no default clause is present, these |
| 1228 | // variables are shared. |
| 1229 | DVar.ImplicitDSALoc = Iter->DefaultAttrLoc; |
| 1230 | if ((isOpenMPParallelDirective(DVar.DKind) && |
| 1231 | !isOpenMPTaskLoopDirective(DVar.DKind)) || |
| 1232 | isOpenMPTeamsDirective(DVar.DKind)) { |
| 1233 | DVar.CKind = OMPC_shared; |
| 1234 | return DVar; |
| 1235 | } |
| 1236 | |
| 1237 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1238 | // in a Construct, implicitly determined, p.4] |
| 1239 | // In a task construct, if no default clause is present, a variable that in |
| 1240 | // the enclosing context is determined to be shared by all implicit tasks |
| 1241 | // bound to the current team is shared. |
| 1242 | if (isOpenMPTaskingDirective(DVar.DKind)) { |
| 1243 | DSAVarData DVarTemp; |
| 1244 | const_iterator I = Iter, E = end(); |
| 1245 | do { |
| 1246 | ++I; |
| 1247 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables |
| 1248 | // Referenced in a Construct, implicitly determined, p.6] |
| 1249 | // In a task construct, if no default clause is present, a variable |
| 1250 | // whose data-sharing attribute is not determined by the rules above is |
| 1251 | // firstprivate. |
| 1252 | DVarTemp = getDSA(I, D); |
| 1253 | if (DVarTemp.CKind != OMPC_shared) { |
| 1254 | DVar.RefExpr = nullptr; |
| 1255 | DVar.CKind = OMPC_firstprivate; |
| 1256 | return DVar; |
| 1257 | } |
| 1258 | } while (I != E && !isImplicitTaskingRegion(I->Directive)); |
| 1259 | DVar.CKind = |
| 1260 | (DVarTemp.CKind == OMPC_unknown) ? OMPC_firstprivate : OMPC_shared; |
| 1261 | return DVar; |
| 1262 | } |
| 1263 | } |
| 1264 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1265 | // in a Construct, implicitly determined, p.3] |
| 1266 | // For constructs other than task, if no default clause is present, these |
| 1267 | // variables inherit their data-sharing attributes from the enclosing |
| 1268 | // context. |
| 1269 | return getDSA(++Iter, D); |
| 1270 | } |
| 1271 | |
| 1272 | const Expr *DSAStackTy::addUniqueAligned(const ValueDecl *D, |
| 1273 | const Expr *NewDE) { |
| 1274 | assert(!isStackEmpty() && "Data sharing attributes stack is empty")((void)0); |
| 1275 | D = getCanonicalDecl(D); |
| 1276 | SharingMapTy &StackElem = getTopOfStack(); |
| 1277 | auto It = StackElem.AlignedMap.find(D); |
| 1278 | if (It == StackElem.AlignedMap.end()) { |
| 1279 | assert(NewDE && "Unexpected nullptr expr to be added into aligned map")((void)0); |
| 1280 | StackElem.AlignedMap[D] = NewDE; |
| 1281 | return nullptr; |
| 1282 | } |
| 1283 | assert(It->second && "Unexpected nullptr expr in the aligned map")((void)0); |
| 1284 | return It->second; |
| 1285 | } |
| 1286 | |
| 1287 | const Expr *DSAStackTy::addUniqueNontemporal(const ValueDecl *D, |
| 1288 | const Expr *NewDE) { |
| 1289 | assert(!isStackEmpty() && "Data sharing attributes stack is empty")((void)0); |
| 1290 | D = getCanonicalDecl(D); |
| 1291 | SharingMapTy &StackElem = getTopOfStack(); |
| 1292 | auto It = StackElem.NontemporalMap.find(D); |
| 1293 | if (It == StackElem.NontemporalMap.end()) { |
| 1294 | assert(NewDE && "Unexpected nullptr expr to be added into aligned map")((void)0); |
| 1295 | StackElem.NontemporalMap[D] = NewDE; |
| 1296 | return nullptr; |
| 1297 | } |
| 1298 | assert(It->second && "Unexpected nullptr expr in the aligned map")((void)0); |
| 1299 | return It->second; |
| 1300 | } |
| 1301 | |
| 1302 | void DSAStackTy::addLoopControlVariable(const ValueDecl *D, VarDecl *Capture) { |
| 1303 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((void)0); |
| 1304 | D = getCanonicalDecl(D); |
| 1305 | SharingMapTy &StackElem = getTopOfStack(); |
| 1306 | StackElem.LCVMap.try_emplace( |
| 1307 | D, LCDeclInfo(StackElem.LCVMap.size() + 1, Capture)); |
| 1308 | } |
| 1309 | |
| 1310 | const DSAStackTy::LCDeclInfo |
| 1311 | DSAStackTy::isLoopControlVariable(const ValueDecl *D) const { |
| 1312 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((void)0); |
| 1313 | D = getCanonicalDecl(D); |
| 1314 | const SharingMapTy &StackElem = getTopOfStack(); |
| 1315 | auto It = StackElem.LCVMap.find(D); |
| 1316 | if (It != StackElem.LCVMap.end()) |
| 1317 | return It->second; |
| 1318 | return {0, nullptr}; |
| 1319 | } |
| 1320 | |
| 1321 | const DSAStackTy::LCDeclInfo |
| 1322 | DSAStackTy::isLoopControlVariable(const ValueDecl *D, unsigned Level) const { |
| 1323 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((void)0); |
| 1324 | D = getCanonicalDecl(D); |
| 1325 | for (unsigned I = Level + 1; I > 0; --I) { |
| 1326 | const SharingMapTy &StackElem = getStackElemAtLevel(I - 1); |
| 1327 | auto It = StackElem.LCVMap.find(D); |
| 1328 | if (It != StackElem.LCVMap.end()) |
| 1329 | return It->second; |
| 1330 | } |
| 1331 | return {0, nullptr}; |
| 1332 | } |
| 1333 | |
| 1334 | const DSAStackTy::LCDeclInfo |
| 1335 | DSAStackTy::isParentLoopControlVariable(const ValueDecl *D) const { |
| 1336 | const SharingMapTy *Parent = getSecondOnStackOrNull(); |
| 1337 | assert(Parent && "Data-sharing attributes stack is empty")((void)0); |
| 1338 | D = getCanonicalDecl(D); |
| 1339 | auto It = Parent->LCVMap.find(D); |
| 1340 | if (It != Parent->LCVMap.end()) |
| 1341 | return It->second; |
| 1342 | return {0, nullptr}; |
| 1343 | } |
| 1344 | |
| 1345 | const ValueDecl *DSAStackTy::getParentLoopControlVariable(unsigned I) const { |
| 1346 | const SharingMapTy *Parent = getSecondOnStackOrNull(); |
| 1347 | assert(Parent && "Data-sharing attributes stack is empty")((void)0); |
| 1348 | if (Parent->LCVMap.size() < I) |
| 1349 | return nullptr; |
| 1350 | for (const auto &Pair : Parent->LCVMap) |
| 1351 | if (Pair.second.first == I) |
| 1352 | return Pair.first; |
| 1353 | return nullptr; |
| 1354 | } |
| 1355 | |
| 1356 | void DSAStackTy::addDSA(const ValueDecl *D, const Expr *E, OpenMPClauseKind A, |
| 1357 | DeclRefExpr *PrivateCopy, unsigned Modifier, |
| 1358 | bool AppliedToPointee) { |
| 1359 | D = getCanonicalDecl(D); |
| 1360 | if (A == OMPC_threadprivate) { |
| 1361 | DSAInfo &Data = Threadprivates[D]; |
| 1362 | Data.Attributes = A; |
| 1363 | Data.RefExpr.setPointer(E); |
| 1364 | Data.PrivateCopy = nullptr; |
| 1365 | Data.Modifier = Modifier; |
| 1366 | } else { |
| 1367 | DSAInfo &Data = getTopOfStack().SharingMap[D]; |
| 1368 | assert(Data.Attributes == OMPC_unknown || (A == Data.Attributes) ||((void)0) |
| 1369 | (A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate) ||((void)0) |
| 1370 | (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) ||((void)0) |
| 1371 | (isLoopControlVariable(D).first && A == OMPC_private))((void)0); |
| 1372 | Data.Modifier = Modifier; |
| 1373 | if (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) { |
| 1374 | Data.RefExpr.setInt(/*IntVal=*/true); |
| 1375 | return; |
| 1376 | } |
| 1377 | const bool IsLastprivate = |
| 1378 | A == OMPC_lastprivate || Data.Attributes == OMPC_lastprivate; |
| 1379 | Data.Attributes = A; |
| 1380 | Data.RefExpr.setPointerAndInt(E, IsLastprivate); |
| 1381 | Data.PrivateCopy = PrivateCopy; |
| 1382 | Data.AppliedToPointee = AppliedToPointee; |
| 1383 | if (PrivateCopy) { |
| 1384 | DSAInfo &Data = getTopOfStack().SharingMap[PrivateCopy->getDecl()]; |
| 1385 | Data.Modifier = Modifier; |
| 1386 | Data.Attributes = A; |
| 1387 | Data.RefExpr.setPointerAndInt(PrivateCopy, IsLastprivate); |
| 1388 | Data.PrivateCopy = nullptr; |
| 1389 | Data.AppliedToPointee = AppliedToPointee; |
| 1390 | } |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | /// Build a variable declaration for OpenMP loop iteration variable. |
| 1395 | static VarDecl *buildVarDecl(Sema &SemaRef, SourceLocation Loc, QualType Type, |
| 1396 | StringRef Name, const AttrVec *Attrs = nullptr, |
| 1397 | DeclRefExpr *OrigRef = nullptr) { |
| 1398 | DeclContext *DC = SemaRef.CurContext; |
| 1399 | IdentifierInfo *II = &SemaRef.PP.getIdentifierTable().get(Name); |
| 1400 | TypeSourceInfo *TInfo = SemaRef.Context.getTrivialTypeSourceInfo(Type, Loc); |
| 1401 | auto *Decl = |
| 1402 | VarDecl::Create(SemaRef.Context, DC, Loc, Loc, II, Type, TInfo, SC_None); |
| 1403 | if (Attrs) { |
| 1404 | for (specific_attr_iterator<AlignedAttr> I(Attrs->begin()), E(Attrs->end()); |
| 1405 | I != E; ++I) |
| 1406 | Decl->addAttr(*I); |
| 1407 | } |
| 1408 | Decl->setImplicit(); |
| 1409 | if (OrigRef) { |
| 1410 | Decl->addAttr( |
| 1411 | OMPReferencedVarAttr::CreateImplicit(SemaRef.Context, OrigRef)); |
| 1412 | } |
| 1413 | return Decl; |
| 1414 | } |
| 1415 | |
| 1416 | static DeclRefExpr *buildDeclRefExpr(Sema &S, VarDecl *D, QualType Ty, |
| 1417 | SourceLocation Loc, |
| 1418 | bool RefersToCapture = false) { |
| 1419 | D->setReferenced(); |
| 1420 | D->markUsed(S.Context); |
| 1421 | return DeclRefExpr::Create(S.getASTContext(), NestedNameSpecifierLoc(), |
| 1422 | SourceLocation(), D, RefersToCapture, Loc, Ty, |
| 1423 | VK_LValue); |
| 1424 | } |
| 1425 | |
| 1426 | void DSAStackTy::addTaskgroupReductionData(const ValueDecl *D, SourceRange SR, |
| 1427 | BinaryOperatorKind BOK) { |
| 1428 | D = getCanonicalDecl(D); |
| 1429 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((void)0); |
| 1430 | assert(((void)0) |
| 1431 | getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&((void)0) |
| 1432 | "Additional reduction info may be specified only for reduction items.")((void)0); |
| 1433 | ReductionData &ReductionData = getTopOfStack().ReductionMap[D]; |
| 1434 | assert(ReductionData.ReductionRange.isInvalid() &&((void)0) |
| 1435 | (getTopOfStack().Directive == OMPD_taskgroup ||((void)0) |
| 1436 | ((isOpenMPParallelDirective(getTopOfStack().Directive) ||((void)0) |
| 1437 | isOpenMPWorksharingDirective(getTopOfStack().Directive)) &&((void)0) |
| 1438 | !isOpenMPSimdDirective(getTopOfStack().Directive))) &&((void)0) |
| 1439 | "Additional reduction info may be specified only once for reduction "((void)0) |
| 1440 | "items.")((void)0); |
| 1441 | ReductionData.set(BOK, SR); |
| 1442 | Expr *&TaskgroupReductionRef = |
| 1443 | getTopOfStack().TaskgroupReductionRef; |
| 1444 | if (!TaskgroupReductionRef) { |
| 1445 | VarDecl *VD = buildVarDecl(SemaRef, SR.getBegin(), |
| 1446 | SemaRef.Context.VoidPtrTy, ".task_red."); |
| 1447 | TaskgroupReductionRef = |
| 1448 | buildDeclRefExpr(SemaRef, VD, SemaRef.Context.VoidPtrTy, SR.getBegin()); |
| 1449 | } |
| 1450 | } |
| 1451 | |
| 1452 | void DSAStackTy::addTaskgroupReductionData(const ValueDecl *D, SourceRange SR, |
| 1453 | const Expr *ReductionRef) { |
| 1454 | D = getCanonicalDecl(D); |
| 1455 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((void)0); |
| 1456 | assert(((void)0) |
| 1457 | getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&((void)0) |
| 1458 | "Additional reduction info may be specified only for reduction items.")((void)0); |
| 1459 | ReductionData &ReductionData = getTopOfStack().ReductionMap[D]; |
| 1460 | assert(ReductionData.ReductionRange.isInvalid() &&((void)0) |
| 1461 | (getTopOfStack().Directive == OMPD_taskgroup ||((void)0) |
| 1462 | ((isOpenMPParallelDirective(getTopOfStack().Directive) ||((void)0) |
| 1463 | isOpenMPWorksharingDirective(getTopOfStack().Directive)) &&((void)0) |
| 1464 | !isOpenMPSimdDirective(getTopOfStack().Directive))) &&((void)0) |
| 1465 | "Additional reduction info may be specified only once for reduction "((void)0) |
| 1466 | "items.")((void)0); |
| 1467 | ReductionData.set(ReductionRef, SR); |
| 1468 | Expr *&TaskgroupReductionRef = |
| 1469 | getTopOfStack().TaskgroupReductionRef; |
| 1470 | if (!TaskgroupReductionRef) { |
| 1471 | VarDecl *VD = buildVarDecl(SemaRef, SR.getBegin(), |
| 1472 | SemaRef.Context.VoidPtrTy, ".task_red."); |
| 1473 | TaskgroupReductionRef = |
| 1474 | buildDeclRefExpr(SemaRef, VD, SemaRef.Context.VoidPtrTy, SR.getBegin()); |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | const DSAStackTy::DSAVarData DSAStackTy::getTopMostTaskgroupReductionData( |
| 1479 | const ValueDecl *D, SourceRange &SR, BinaryOperatorKind &BOK, |
| 1480 | Expr *&TaskgroupDescriptor) const { |
| 1481 | D = getCanonicalDecl(D); |
| 1482 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty.")((void)0); |
| 1483 | for (const_iterator I = begin() + 1, E = end(); I != E; ++I) { |
| 1484 | const DSAInfo &Data = I->SharingMap.lookup(D); |
| 1485 | if (Data.Attributes != OMPC_reduction || |
| 1486 | Data.Modifier != OMPC_REDUCTION_task) |
| 1487 | continue; |
| 1488 | const ReductionData &ReductionData = I->ReductionMap.lookup(D); |
| 1489 | if (!ReductionData.ReductionOp || |
| 1490 | ReductionData.ReductionOp.is<const Expr *>()) |
| 1491 | return DSAVarData(); |
| 1492 | SR = ReductionData.ReductionRange; |
| 1493 | BOK = ReductionData.ReductionOp.get<ReductionData::BOKPtrType>(); |
| 1494 | assert(I->TaskgroupReductionRef && "taskgroup reduction reference "((void)0) |
| 1495 | "expression for the descriptor is not "((void)0) |
| 1496 | "set.")((void)0); |
| 1497 | TaskgroupDescriptor = I->TaskgroupReductionRef; |
| 1498 | return DSAVarData(I->Directive, OMPC_reduction, Data.RefExpr.getPointer(), |
| 1499 | Data.PrivateCopy, I->DefaultAttrLoc, OMPC_REDUCTION_task, |
| 1500 | /*AppliedToPointee=*/false); |
| 1501 | } |
| 1502 | return DSAVarData(); |
| 1503 | } |
| 1504 | |
| 1505 | const DSAStackTy::DSAVarData DSAStackTy::getTopMostTaskgroupReductionData( |
| 1506 | const ValueDecl *D, SourceRange &SR, const Expr *&ReductionRef, |
| 1507 | Expr *&TaskgroupDescriptor) const { |
| 1508 | D = getCanonicalDecl(D); |
| 1509 | assert(!isStackEmpty() && "Data-sharing attributes stack is empty.")((void)0); |
| 1510 | for (const_iterator I = begin() + 1, E = end(); I != E; ++I) { |
| 1511 | const DSAInfo &Data = I->SharingMap.lookup(D); |
| 1512 | if (Data.Attributes != OMPC_reduction || |
| 1513 | Data.Modifier != OMPC_REDUCTION_task) |
| 1514 | continue; |
| 1515 | const ReductionData &ReductionData = I->ReductionMap.lookup(D); |
| 1516 | if (!ReductionData.ReductionOp || |
| 1517 | !ReductionData.ReductionOp.is<const Expr *>()) |
| 1518 | return DSAVarData(); |
| 1519 | SR = ReductionData.ReductionRange; |
| 1520 | ReductionRef = ReductionData.ReductionOp.get<const Expr *>(); |
| 1521 | assert(I->TaskgroupReductionRef && "taskgroup reduction reference "((void)0) |
| 1522 | "expression for the descriptor is not "((void)0) |
| 1523 | "set.")((void)0); |
| 1524 | TaskgroupDescriptor = I->TaskgroupReductionRef; |
| 1525 | return DSAVarData(I->Directive, OMPC_reduction, Data.RefExpr.getPointer(), |
| 1526 | Data.PrivateCopy, I->DefaultAttrLoc, OMPC_REDUCTION_task, |
| 1527 | /*AppliedToPointee=*/false); |
| 1528 | } |
| 1529 | return DSAVarData(); |
| 1530 | } |
| 1531 | |
| 1532 | bool DSAStackTy::isOpenMPLocal(VarDecl *D, const_iterator I) const { |
| 1533 | D = D->getCanonicalDecl(); |
| 1534 | for (const_iterator E = end(); I != E; ++I) { |
| 1535 | if (isImplicitOrExplicitTaskingRegion(I->Directive) || |
| 1536 | isOpenMPTargetExecutionDirective(I->Directive)) { |
| 1537 | if (I->CurScope) { |
| 1538 | Scope *TopScope = I->CurScope->getParent(); |
| 1539 | Scope *CurScope = getCurScope(); |
| 1540 | while (CurScope && CurScope != TopScope && !CurScope->isDeclScope(D)) |
| 1541 | CurScope = CurScope->getParent(); |
| 1542 | return CurScope != TopScope; |
| 1543 | } |
| 1544 | for (DeclContext *DC = D->getDeclContext(); DC; DC = DC->getParent()) |
| 1545 | if (I->Context == DC) |
| 1546 | return true; |
| 1547 | return false; |
| 1548 | } |
| 1549 | } |
| 1550 | return false; |
| 1551 | } |
| 1552 | |
| 1553 | static bool isConstNotMutableType(Sema &SemaRef, QualType Type, |
| 1554 | bool AcceptIfMutable = true, |
| 1555 | bool *IsClassType = nullptr) { |
| 1556 | ASTContext &Context = SemaRef.getASTContext(); |
| 1557 | Type = Type.getNonReferenceType().getCanonicalType(); |
| 1558 | bool IsConstant = Type.isConstant(Context); |
| 1559 | Type = Context.getBaseElementType(Type); |
| 1560 | const CXXRecordDecl *RD = AcceptIfMutable && SemaRef.getLangOpts().CPlusPlus |
| 1561 | ? Type->getAsCXXRecordDecl() |
| 1562 | : nullptr; |
| 1563 | if (const auto *CTSD = dyn_cast_or_null<ClassTemplateSpecializationDecl>(RD)) |
| 1564 | if (const ClassTemplateDecl *CTD = CTSD->getSpecializedTemplate()) |
| 1565 | RD = CTD->getTemplatedDecl(); |
| 1566 | if (IsClassType) |
| 1567 | *IsClassType = RD; |
| 1568 | return IsConstant && !(SemaRef.getLangOpts().CPlusPlus && RD && |
| 1569 | RD->hasDefinition() && RD->hasMutableFields()); |
| 1570 | } |
| 1571 | |
| 1572 | static bool rejectConstNotMutableType(Sema &SemaRef, const ValueDecl *D, |
| 1573 | QualType Type, OpenMPClauseKind CKind, |
| 1574 | SourceLocation ELoc, |
| 1575 | bool AcceptIfMutable = true, |
| 1576 | bool ListItemNotVar = false) { |
| 1577 | ASTContext &Context = SemaRef.getASTContext(); |
| 1578 | bool IsClassType; |
| 1579 | if (isConstNotMutableType(SemaRef, Type, AcceptIfMutable, &IsClassType)) { |
| 1580 | unsigned Diag = ListItemNotVar |
| 1581 | ? diag::err_omp_const_list_item |
| 1582 | : IsClassType ? diag::err_omp_const_not_mutable_variable |
| 1583 | : diag::err_omp_const_variable; |
| 1584 | SemaRef.Diag(ELoc, Diag) << getOpenMPClauseName(CKind); |
| 1585 | if (!ListItemNotVar && D) { |
| 1586 | const VarDecl *VD = dyn_cast<VarDecl>(D); |
| 1587 | bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) == |
| 1588 | VarDecl::DeclarationOnly; |
| 1589 | SemaRef.Diag(D->getLocation(), |
| 1590 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 1591 | << D; |
| 1592 | } |
| 1593 | return true; |
| 1594 | } |
| 1595 | return false; |
| 1596 | } |
| 1597 | |
| 1598 | const DSAStackTy::DSAVarData DSAStackTy::getTopDSA(ValueDecl *D, |
| 1599 | bool FromParent) { |
| 1600 | D = getCanonicalDecl(D); |
| 1601 | DSAVarData DVar; |
| 1602 | |
| 1603 | auto *VD = dyn_cast<VarDecl>(D); |
| 1604 | auto TI = Threadprivates.find(D); |
| 1605 | if (TI != Threadprivates.end()) { |
| 1606 | DVar.RefExpr = TI->getSecond().RefExpr.getPointer(); |
| 1607 | DVar.CKind = OMPC_threadprivate; |
| 1608 | DVar.Modifier = TI->getSecond().Modifier; |
| 1609 | return DVar; |
| 1610 | } |
| 1611 | if (VD && VD->hasAttr<OMPThreadPrivateDeclAttr>()) { |
| 1612 | DVar.RefExpr = buildDeclRefExpr( |
| 1613 | SemaRef, VD, D->getType().getNonReferenceType(), |
| 1614 | VD->getAttr<OMPThreadPrivateDeclAttr>()->getLocation()); |
| 1615 | DVar.CKind = OMPC_threadprivate; |
| 1616 | addDSA(D, DVar.RefExpr, OMPC_threadprivate); |
| 1617 | return DVar; |
| 1618 | } |
| 1619 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1620 | // in a Construct, C/C++, predetermined, p.1] |
| 1621 | // Variables appearing in threadprivate directives are threadprivate. |
| 1622 | if ((VD && VD->getTLSKind() != VarDecl::TLS_None && |
| 1623 | !(VD->hasAttr<OMPThreadPrivateDeclAttr>() && |
| 1624 | SemaRef.getLangOpts().OpenMPUseTLS && |
| 1625 | SemaRef.getASTContext().getTargetInfo().isTLSSupported())) || |
| 1626 | (VD && VD->getStorageClass() == SC_Register && |
| 1627 | VD->hasAttr<AsmLabelAttr>() && !VD->isLocalVarDecl())) { |
| 1628 | DVar.RefExpr = buildDeclRefExpr( |
| 1629 | SemaRef, VD, D->getType().getNonReferenceType(), D->getLocation()); |
| 1630 | DVar.CKind = OMPC_threadprivate; |
| 1631 | addDSA(D, DVar.RefExpr, OMPC_threadprivate); |
| 1632 | return DVar; |
| 1633 | } |
| 1634 | if (SemaRef.getLangOpts().OpenMPCUDAMode && VD && |
| 1635 | VD->isLocalVarDeclOrParm() && !isStackEmpty() && |
| 1636 | !isLoopControlVariable(D).first) { |
| 1637 | const_iterator IterTarget = |
| 1638 | std::find_if(begin(), end(), [](const SharingMapTy &Data) { |
| 1639 | return isOpenMPTargetExecutionDirective(Data.Directive); |
| 1640 | }); |
| 1641 | if (IterTarget != end()) { |
| 1642 | const_iterator ParentIterTarget = IterTarget + 1; |
| 1643 | for (const_iterator Iter = begin(); |
| 1644 | Iter != ParentIterTarget; ++Iter) { |
| 1645 | if (isOpenMPLocal(VD, Iter)) { |
| 1646 | DVar.RefExpr = |
| 1647 | buildDeclRefExpr(SemaRef, VD, D->getType().getNonReferenceType(), |
| 1648 | D->getLocation()); |
| 1649 | DVar.CKind = OMPC_threadprivate; |
| 1650 | return DVar; |
| 1651 | } |
| 1652 | } |
| 1653 | if (!isClauseParsingMode() || IterTarget != begin()) { |
| 1654 | auto DSAIter = IterTarget->SharingMap.find(D); |
| 1655 | if (DSAIter != IterTarget->SharingMap.end() && |
| 1656 | isOpenMPPrivate(DSAIter->getSecond().Attributes)) { |
| 1657 | DVar.RefExpr = DSAIter->getSecond().RefExpr.getPointer(); |
| 1658 | DVar.CKind = OMPC_threadprivate; |
| 1659 | return DVar; |
| 1660 | } |
| 1661 | const_iterator End = end(); |
| 1662 | if (!SemaRef.isOpenMPCapturedByRef( |
| 1663 | D, std::distance(ParentIterTarget, End), |
| 1664 | /*OpenMPCaptureLevel=*/0)) { |
| 1665 | DVar.RefExpr = |
| 1666 | buildDeclRefExpr(SemaRef, VD, D->getType().getNonReferenceType(), |
| 1667 | IterTarget->ConstructLoc); |
| 1668 | DVar.CKind = OMPC_threadprivate; |
| 1669 | return DVar; |
| 1670 | } |
| 1671 | } |
| 1672 | } |
| 1673 | } |
| 1674 | |
| 1675 | if (isStackEmpty()) |
| 1676 | // Not in OpenMP execution region and top scope was already checked. |
| 1677 | return DVar; |
| 1678 | |
| 1679 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1680 | // in a Construct, C/C++, predetermined, p.4] |
| 1681 | // Static data members are shared. |
| 1682 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1683 | // in a Construct, C/C++, predetermined, p.7] |
| 1684 | // Variables with static storage duration that are declared in a scope |
| 1685 | // inside the construct are shared. |
| 1686 | if (VD && VD->isStaticDataMember()) { |
| 1687 | // Check for explicitly specified attributes. |
| 1688 | const_iterator I = begin(); |
| 1689 | const_iterator EndI = end(); |
| 1690 | if (FromParent && I != EndI) |
| 1691 | ++I; |
| 1692 | if (I != EndI) { |
| 1693 | auto It = I->SharingMap.find(D); |
| 1694 | if (It != I->SharingMap.end()) { |
| 1695 | const DSAInfo &Data = It->getSecond(); |
| 1696 | DVar.RefExpr = Data.RefExpr.getPointer(); |
| 1697 | DVar.PrivateCopy = Data.PrivateCopy; |
| 1698 | DVar.CKind = Data.Attributes; |
| 1699 | DVar.ImplicitDSALoc = I->DefaultAttrLoc; |
| 1700 | DVar.DKind = I->Directive; |
| 1701 | DVar.Modifier = Data.Modifier; |
| 1702 | DVar.AppliedToPointee = Data.AppliedToPointee; |
| 1703 | return DVar; |
| 1704 | } |
| 1705 | } |
| 1706 | |
| 1707 | DVar.CKind = OMPC_shared; |
| 1708 | return DVar; |
| 1709 | } |
| 1710 | |
| 1711 | auto &&MatchesAlways = [](OpenMPDirectiveKind) { return true; }; |
| 1712 | // The predetermined shared attribute for const-qualified types having no |
| 1713 | // mutable members was removed after OpenMP 3.1. |
| 1714 | if (SemaRef.LangOpts.OpenMP <= 31) { |
| 1715 | // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced |
| 1716 | // in a Construct, C/C++, predetermined, p.6] |
| 1717 | // Variables with const qualified type having no mutable member are |
| 1718 | // shared. |
| 1719 | if (isConstNotMutableType(SemaRef, D->getType())) { |
| 1720 | // Variables with const-qualified type having no mutable member may be |
| 1721 | // listed in a firstprivate clause, even if they are static data members. |
| 1722 | DSAVarData DVarTemp = hasInnermostDSA( |
| 1723 | D, |
| 1724 | [](OpenMPClauseKind C, bool) { |
| 1725 | return C == OMPC_firstprivate || C == OMPC_shared; |
| 1726 | }, |
| 1727 | MatchesAlways, FromParent); |
| 1728 | if (DVarTemp.CKind != OMPC_unknown && DVarTemp.RefExpr) |
| 1729 | return DVarTemp; |
| 1730 | |
| 1731 | DVar.CKind = OMPC_shared; |
| 1732 | return DVar; |
| 1733 | } |
| 1734 | } |
| 1735 | |
| 1736 | // Explicitly specified attributes and local variables with predetermined |
| 1737 | // attributes. |
| 1738 | const_iterator I = begin(); |
| 1739 | const_iterator EndI = end(); |
| 1740 | if (FromParent && I != EndI) |
| 1741 | ++I; |
| 1742 | if (I == EndI) |
| 1743 | return DVar; |
| 1744 | auto It = I->SharingMap.find(D); |
| 1745 | if (It != I->SharingMap.end()) { |
| 1746 | const DSAInfo &Data = It->getSecond(); |
| 1747 | DVar.RefExpr = Data.RefExpr.getPointer(); |
| 1748 | DVar.PrivateCopy = Data.PrivateCopy; |
| 1749 | DVar.CKind = Data.Attributes; |
| 1750 | DVar.ImplicitDSALoc = I->DefaultAttrLoc; |
| 1751 | DVar.DKind = I->Directive; |
| 1752 | DVar.Modifier = Data.Modifier; |
| 1753 | DVar.AppliedToPointee = Data.AppliedToPointee; |
| 1754 | } |
| 1755 | |
| 1756 | return DVar; |
| 1757 | } |
| 1758 | |
| 1759 | const DSAStackTy::DSAVarData DSAStackTy::getImplicitDSA(ValueDecl *D, |
| 1760 | bool FromParent) const { |
| 1761 | if (isStackEmpty()) { |
| 1762 | const_iterator I; |
| 1763 | return getDSA(I, D); |
| 1764 | } |
| 1765 | D = getCanonicalDecl(D); |
| 1766 | const_iterator StartI = begin(); |
| 1767 | const_iterator EndI = end(); |
| 1768 | if (FromParent && StartI != EndI) |
| 1769 | ++StartI; |
| 1770 | return getDSA(StartI, D); |
| 1771 | } |
| 1772 | |
| 1773 | const DSAStackTy::DSAVarData DSAStackTy::getImplicitDSA(ValueDecl *D, |
| 1774 | unsigned Level) const { |
| 1775 | if (getStackSize() <= Level) |
| 1776 | return DSAVarData(); |
| 1777 | D = getCanonicalDecl(D); |
| 1778 | const_iterator StartI = std::next(begin(), getStackSize() - 1 - Level); |
| 1779 | return getDSA(StartI, D); |
| 1780 | } |
| 1781 | |
| 1782 | const DSAStackTy::DSAVarData |
| 1783 | DSAStackTy::hasDSA(ValueDecl *D, |
| 1784 | const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred, |
| 1785 | const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred, |
| 1786 | bool FromParent) const { |
| 1787 | if (isStackEmpty()) |
| 1788 | return {}; |
| 1789 | D = getCanonicalDecl(D); |
| 1790 | const_iterator I = begin(); |
| 1791 | const_iterator EndI = end(); |
| 1792 | if (FromParent && I != EndI) |
| 1793 | ++I; |
| 1794 | for (; I != EndI; ++I) { |
| 1795 | if (!DPred(I->Directive) && |
| 1796 | !isImplicitOrExplicitTaskingRegion(I->Directive)) |
| 1797 | continue; |
| 1798 | const_iterator NewI = I; |
| 1799 | DSAVarData DVar = getDSA(NewI, D); |
| 1800 | if (I == NewI && CPred(DVar.CKind, DVar.AppliedToPointee)) |
| 1801 | return DVar; |
| 1802 | } |
| 1803 | return {}; |
| 1804 | } |
| 1805 | |
| 1806 | const DSAStackTy::DSAVarData DSAStackTy::hasInnermostDSA( |
| 1807 | ValueDecl *D, const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred, |
| 1808 | const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred, |
| 1809 | bool FromParent) const { |
| 1810 | if (isStackEmpty()) |
| 1811 | return {}; |
| 1812 | D = getCanonicalDecl(D); |
| 1813 | const_iterator StartI = begin(); |
| 1814 | const_iterator EndI = end(); |
| 1815 | if (FromParent && StartI != EndI) |
| 1816 | ++StartI; |
| 1817 | if (StartI == EndI || !DPred(StartI->Directive)) |
| 1818 | return {}; |
| 1819 | const_iterator NewI = StartI; |
| 1820 | DSAVarData DVar = getDSA(NewI, D); |
| 1821 | return (NewI == StartI && CPred(DVar.CKind, DVar.AppliedToPointee)) |
| 1822 | ? DVar |
| 1823 | : DSAVarData(); |
| 1824 | } |
| 1825 | |
| 1826 | bool DSAStackTy::hasExplicitDSA( |
| 1827 | const ValueDecl *D, |
| 1828 | const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred, |
| 1829 | unsigned Level, bool NotLastprivate) const { |
| 1830 | if (getStackSize() <= Level) |
| 1831 | return false; |
| 1832 | D = getCanonicalDecl(D); |
| 1833 | const SharingMapTy &StackElem = getStackElemAtLevel(Level); |
| 1834 | auto I = StackElem.SharingMap.find(D); |
| 1835 | if (I != StackElem.SharingMap.end() && I->getSecond().RefExpr.getPointer() && |
| 1836 | CPred(I->getSecond().Attributes, I->getSecond().AppliedToPointee) && |
| 1837 | (!NotLastprivate || !I->getSecond().RefExpr.getInt())) |
| 1838 | return true; |
| 1839 | // Check predetermined rules for the loop control variables. |
| 1840 | auto LI = StackElem.LCVMap.find(D); |
| 1841 | if (LI != StackElem.LCVMap.end()) |
| 1842 | return CPred(OMPC_private, /*AppliedToPointee=*/false); |
| 1843 | return false; |
| 1844 | } |
| 1845 | |
| 1846 | bool DSAStackTy::hasExplicitDirective( |
| 1847 | const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred, |
| 1848 | unsigned Level) const { |
| 1849 | if (getStackSize() <= Level) |
| 1850 | return false; |
| 1851 | const SharingMapTy &StackElem = getStackElemAtLevel(Level); |
| 1852 | return DPred(StackElem.Directive); |
| 1853 | } |
| 1854 | |
| 1855 | bool DSAStackTy::hasDirective( |
| 1856 | const llvm::function_ref<bool(OpenMPDirectiveKind, |
| 1857 | const DeclarationNameInfo &, SourceLocation)> |
| 1858 | DPred, |
| 1859 | bool FromParent) const { |
| 1860 | // We look only in the enclosing region. |
| 1861 | size_t Skip = FromParent ? 2 : 1; |
| 1862 | for (const_iterator I = begin() + std::min(Skip, getStackSize()), E = end(); |
| 1863 | I != E; ++I) { |
| 1864 | if (DPred(I->Directive, I->DirectiveName, I->ConstructLoc)) |
| 1865 | return true; |
| 1866 | } |
| 1867 | return false; |
| 1868 | } |
| 1869 | |
| 1870 | void Sema::InitDataSharingAttributesStack() { |
| 1871 | VarDataSharingAttributesStack = new DSAStackTy(*this); |
| 1872 | } |
| 1873 | |
| 1874 | #define DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ) static_cast<DSAStackTy *>(VarDataSharingAttributesStack) |
| 1875 | |
| 1876 | void Sema::pushOpenMPFunctionRegion() { |
| 1877 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->pushFunction(); |
| 1878 | } |
| 1879 | |
| 1880 | void Sema::popOpenMPFunctionRegion(const FunctionScopeInfo *OldFSI) { |
| 1881 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->popFunction(OldFSI); |
| 1882 | } |
| 1883 | |
| 1884 | static bool isOpenMPDeviceDelayedContext(Sema &S) { |
| 1885 | assert(S.LangOpts.OpenMP && S.LangOpts.OpenMPIsDevice &&((void)0) |
| 1886 | "Expected OpenMP device compilation.")((void)0); |
| 1887 | return !S.isInOpenMPTargetExecutionDirective(); |
| 1888 | } |
| 1889 | |
| 1890 | namespace { |
| 1891 | /// Status of the function emission on the host/device. |
| 1892 | enum class FunctionEmissionStatus { |
| 1893 | Emitted, |
| 1894 | Discarded, |
| 1895 | Unknown, |
| 1896 | }; |
| 1897 | } // anonymous namespace |
| 1898 | |
| 1899 | Sema::SemaDiagnosticBuilder Sema::diagIfOpenMPDeviceCode(SourceLocation Loc, |
| 1900 | unsigned DiagID, |
| 1901 | FunctionDecl *FD) { |
| 1902 | assert(LangOpts.OpenMP && LangOpts.OpenMPIsDevice &&((void)0) |
| 1903 | "Expected OpenMP device compilation.")((void)0); |
| 1904 | |
| 1905 | SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop; |
| 1906 | if (FD) { |
| 1907 | FunctionEmissionStatus FES = getEmissionStatus(FD); |
| 1908 | switch (FES) { |
| 1909 | case FunctionEmissionStatus::Emitted: |
| 1910 | Kind = SemaDiagnosticBuilder::K_Immediate; |
| 1911 | break; |
| 1912 | case FunctionEmissionStatus::Unknown: |
| 1913 | // TODO: We should always delay diagnostics here in case a target |
| 1914 | // region is in a function we do not emit. However, as the |
| 1915 | // current diagnostics are associated with the function containing |
| 1916 | // the target region and we do not emit that one, we would miss out |
| 1917 | // on diagnostics for the target region itself. We need to anchor |
| 1918 | // the diagnostics with the new generated function *or* ensure we |
| 1919 | // emit diagnostics associated with the surrounding function. |
| 1920 | Kind = isOpenMPDeviceDelayedContext(*this) |
| 1921 | ? SemaDiagnosticBuilder::K_Deferred |
| 1922 | : SemaDiagnosticBuilder::K_Immediate; |
| 1923 | break; |
| 1924 | case FunctionEmissionStatus::TemplateDiscarded: |
| 1925 | case FunctionEmissionStatus::OMPDiscarded: |
| 1926 | Kind = SemaDiagnosticBuilder::K_Nop; |
| 1927 | break; |
| 1928 | case FunctionEmissionStatus::CUDADiscarded: |
| 1929 | llvm_unreachable("CUDADiscarded unexpected in OpenMP device compilation")__builtin_unreachable(); |
| 1930 | break; |
| 1931 | } |
| 1932 | } |
| 1933 | |
| 1934 | return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this); |
| 1935 | } |
| 1936 | |
| 1937 | Sema::SemaDiagnosticBuilder Sema::diagIfOpenMPHostCode(SourceLocation Loc, |
| 1938 | unsigned DiagID, |
| 1939 | FunctionDecl *FD) { |
| 1940 | assert(LangOpts.OpenMP && !LangOpts.OpenMPIsDevice &&((void)0) |
| 1941 | "Expected OpenMP host compilation.")((void)0); |
| 1942 | |
| 1943 | SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop; |
| 1944 | if (FD) { |
| 1945 | FunctionEmissionStatus FES = getEmissionStatus(FD); |
| 1946 | switch (FES) { |
| 1947 | case FunctionEmissionStatus::Emitted: |
| 1948 | Kind = SemaDiagnosticBuilder::K_Immediate; |
| 1949 | break; |
| 1950 | case FunctionEmissionStatus::Unknown: |
| 1951 | Kind = SemaDiagnosticBuilder::K_Deferred; |
| 1952 | break; |
| 1953 | case FunctionEmissionStatus::TemplateDiscarded: |
| 1954 | case FunctionEmissionStatus::OMPDiscarded: |
| 1955 | case FunctionEmissionStatus::CUDADiscarded: |
| 1956 | Kind = SemaDiagnosticBuilder::K_Nop; |
| 1957 | break; |
| 1958 | } |
| 1959 | } |
| 1960 | |
| 1961 | return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this); |
| 1962 | } |
| 1963 | |
| 1964 | static OpenMPDefaultmapClauseKind |
| 1965 | getVariableCategoryFromDecl(const LangOptions &LO, const ValueDecl *VD) { |
| 1966 | if (LO.OpenMP <= 45) { |
| 1967 | if (VD->getType().getNonReferenceType()->isScalarType()) |
| 1968 | return OMPC_DEFAULTMAP_scalar; |
| 1969 | return OMPC_DEFAULTMAP_aggregate; |
| 1970 | } |
| 1971 | if (VD->getType().getNonReferenceType()->isAnyPointerType()) |
| 1972 | return OMPC_DEFAULTMAP_pointer; |
| 1973 | if (VD->getType().getNonReferenceType()->isScalarType()) |
| 1974 | return OMPC_DEFAULTMAP_scalar; |
| 1975 | return OMPC_DEFAULTMAP_aggregate; |
| 1976 | } |
| 1977 | |
| 1978 | bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level, |
| 1979 | unsigned OpenMPCaptureLevel) const { |
| 1980 | assert(LangOpts.OpenMP && "OpenMP is not allowed")((void)0); |
| 1981 | |
| 1982 | ASTContext &Ctx = getASTContext(); |
| 1983 | bool IsByRef = true; |
| 1984 | |
| 1985 | // Find the directive that is associated with the provided scope. |
| 1986 | D = cast<ValueDecl>(D->getCanonicalDecl()); |
| 1987 | QualType Ty = D->getType(); |
| 1988 | |
| 1989 | bool IsVariableUsedInMapClause = false; |
| 1990 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDirective(isOpenMPTargetExecutionDirective, Level)) { |
| 1991 | // This table summarizes how a given variable should be passed to the device |
| 1992 | // given its type and the clauses where it appears. This table is based on |
| 1993 | // the description in OpenMP 4.5 [2.10.4, target Construct] and |
| 1994 | // OpenMP 4.5 [2.15.5, Data-mapping Attribute Rules and Clauses]. |
| 1995 | // |
| 1996 | // ========================================================================= |
| 1997 | // | type | defaultmap | pvt | first | is_device_ptr | map | res. | |
| 1998 | // | |(tofrom:scalar)| | pvt | | | | |
| 1999 | // ========================================================================= |
| 2000 | // | scl | | | | - | | bycopy| |
| 2001 | // | scl | | - | x | - | - | bycopy| |
| 2002 | // | scl | | x | - | - | - | null | |
| 2003 | // | scl | x | | | - | | byref | |
| 2004 | // | scl | x | - | x | - | - | bycopy| |
| 2005 | // | scl | x | x | - | - | - | null | |
| 2006 | // | scl | | - | - | - | x | byref | |
| 2007 | // | scl | x | - | - | - | x | byref | |
| 2008 | // |
| 2009 | // | agg | n.a. | | | - | | byref | |
| 2010 | // | agg | n.a. | - | x | - | - | byref | |
| 2011 | // | agg | n.a. | x | - | - | - | null | |
| 2012 | // | agg | n.a. | - | - | - | x | byref | |
| 2013 | // | agg | n.a. | - | - | - | x[] | byref | |
| 2014 | // |
| 2015 | // | ptr | n.a. | | | - | | bycopy| |
| 2016 | // | ptr | n.a. | - | x | - | - | bycopy| |
| 2017 | // | ptr | n.a. | x | - | - | - | null | |
| 2018 | // | ptr | n.a. | - | - | - | x | byref | |
| 2019 | // | ptr | n.a. | - | - | - | x[] | bycopy| |
| 2020 | // | ptr | n.a. | - | - | x | | bycopy| |
| 2021 | // | ptr | n.a. | - | - | x | x | bycopy| |
| 2022 | // | ptr | n.a. | - | - | x | x[] | bycopy| |
| 2023 | // ========================================================================= |
| 2024 | // Legend: |
| 2025 | // scl - scalar |
| 2026 | // ptr - pointer |
| 2027 | // agg - aggregate |
| 2028 | // x - applies |
| 2029 | // - - invalid in this combination |
| 2030 | // [] - mapped with an array section |
| 2031 | // byref - should be mapped by reference |
| 2032 | // byval - should be mapped by value |
| 2033 | // null - initialize a local variable to null on the device |
| 2034 | // |
| 2035 | // Observations: |
| 2036 | // - All scalar declarations that show up in a map clause have to be passed |
| 2037 | // by reference, because they may have been mapped in the enclosing data |
| 2038 | // environment. |
| 2039 | // - If the scalar value does not fit the size of uintptr, it has to be |
| 2040 | // passed by reference, regardless the result in the table above. |
| 2041 | // - For pointers mapped by value that have either an implicit map or an |
| 2042 | // array section, the runtime library may pass the NULL value to the |
| 2043 | // device instead of the value passed to it by the compiler. |
| 2044 | |
| 2045 | if (Ty->isReferenceType()) |
| 2046 | Ty = Ty->castAs<ReferenceType>()->getPointeeType(); |
| 2047 | |
| 2048 | // Locate map clauses and see if the variable being captured is referred to |
| 2049 | // in any of those clauses. Here we only care about variables, not fields, |
| 2050 | // because fields are part of aggregates. |
| 2051 | bool IsVariableAssociatedWithSection = false; |
| 2052 | |
| 2053 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->checkMappableExprComponentListsForDeclAtLevel( |
| 2054 | D, Level, |
| 2055 | [&IsVariableUsedInMapClause, &IsVariableAssociatedWithSection, D]( |
| 2056 | OMPClauseMappableExprCommon::MappableExprComponentListRef |
| 2057 | MapExprComponents, |
| 2058 | OpenMPClauseKind WhereFoundClauseKind) { |
| 2059 | // Only the map clause information influences how a variable is |
| 2060 | // captured. E.g. is_device_ptr does not require changing the default |
| 2061 | // behavior. |
| 2062 | if (WhereFoundClauseKind != OMPC_map) |
| 2063 | return false; |
| 2064 | |
| 2065 | auto EI = MapExprComponents.rbegin(); |
| 2066 | auto EE = MapExprComponents.rend(); |
| 2067 | |
| 2068 | assert(EI != EE && "Invalid map expression!")((void)0); |
| 2069 | |
| 2070 | if (isa<DeclRefExpr>(EI->getAssociatedExpression())) |
| 2071 | IsVariableUsedInMapClause |= EI->getAssociatedDeclaration() == D; |
| 2072 | |
| 2073 | ++EI; |
| 2074 | if (EI == EE) |
| 2075 | return false; |
| 2076 | |
| 2077 | if (isa<ArraySubscriptExpr>(EI->getAssociatedExpression()) || |
| 2078 | isa<OMPArraySectionExpr>(EI->getAssociatedExpression()) || |
| 2079 | isa<MemberExpr>(EI->getAssociatedExpression()) || |
| 2080 | isa<OMPArrayShapingExpr>(EI->getAssociatedExpression())) { |
| 2081 | IsVariableAssociatedWithSection = true; |
| 2082 | // There is nothing more we need to know about this variable. |
| 2083 | return true; |
| 2084 | } |
| 2085 | |
| 2086 | // Keep looking for more map info. |
| 2087 | return false; |
| 2088 | }); |
| 2089 | |
| 2090 | if (IsVariableUsedInMapClause) { |
| 2091 | // If variable is identified in a map clause it is always captured by |
| 2092 | // reference except if it is a pointer that is dereferenced somehow. |
| 2093 | IsByRef = !(Ty->isPointerType() && IsVariableAssociatedWithSection); |
| 2094 | } else { |
| 2095 | // By default, all the data that has a scalar type is mapped by copy |
| 2096 | // (except for reduction variables). |
| 2097 | // Defaultmap scalar is mutual exclusive to defaultmap pointer |
| 2098 | IsByRef = (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isForceCaptureByReferenceInTargetExecutable() && |
| 2099 | !Ty->isAnyPointerType()) || |
| 2100 | !Ty->isScalarType() || |
| 2101 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isDefaultmapCapturedByRef( |
| 2102 | Level, getVariableCategoryFromDecl(LangOpts, D)) || |
| 2103 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2104 | D, |
| 2105 | [](OpenMPClauseKind K, bool AppliedToPointee) { |
| 2106 | return K == OMPC_reduction && !AppliedToPointee; |
| 2107 | }, |
| 2108 | Level); |
| 2109 | } |
| 2110 | } |
| 2111 | |
| 2112 | if (IsByRef && Ty.getNonReferenceType()->isScalarType()) { |
| 2113 | IsByRef = |
| 2114 | ((IsVariableUsedInMapClause && |
| 2115 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCaptureRegion(Level, OpenMPCaptureLevel) == |
| 2116 | OMPD_target) || |
| 2117 | !(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2118 | D, |
| 2119 | [](OpenMPClauseKind K, bool AppliedToPointee) -> bool { |
| 2120 | return K == OMPC_firstprivate || |
| 2121 | (K == OMPC_reduction && AppliedToPointee); |
| 2122 | }, |
| 2123 | Level, /*NotLastprivate=*/true) || |
| 2124 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isUsesAllocatorsDecl(Level, D))) && |
| 2125 | // If the variable is artificial and must be captured by value - try to |
| 2126 | // capture by value. |
| 2127 | !(isa<OMPCapturedExprDecl>(D) && !D->hasAttr<OMPCaptureNoInitAttr>() && |
| 2128 | !cast<OMPCapturedExprDecl>(D)->getInit()->isGLValue()) && |
| 2129 | // If the variable is implicitly firstprivate and scalar - capture by |
| 2130 | // copy |
| 2131 | !(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDefaultDSA() == DSA_firstprivate && |
| 2132 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2133 | D, [](OpenMPClauseKind K, bool) { return K != OMPC_unknown; }, |
| 2134 | Level) && |
| 2135 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isLoopControlVariable(D, Level).first); |
| 2136 | } |
| 2137 | |
| 2138 | // When passing data by copy, we need to make sure it fits the uintptr size |
| 2139 | // and alignment, because the runtime library only deals with uintptr types. |
| 2140 | // If it does not fit the uintptr size, we need to pass the data by reference |
| 2141 | // instead. |
| 2142 | if (!IsByRef && |
| 2143 | (Ctx.getTypeSizeInChars(Ty) > |
| 2144 | Ctx.getTypeSizeInChars(Ctx.getUIntPtrType()) || |
| 2145 | Ctx.getDeclAlign(D) > Ctx.getTypeAlignInChars(Ctx.getUIntPtrType()))) { |
| 2146 | IsByRef = true; |
| 2147 | } |
| 2148 | |
| 2149 | return IsByRef; |
| 2150 | } |
| 2151 | |
| 2152 | unsigned Sema::getOpenMPNestingLevel() const { |
| 2153 | assert(getLangOpts().OpenMP)((void)0); |
| 2154 | return DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getNestingLevel(); |
| 2155 | } |
| 2156 | |
| 2157 | bool Sema::isInOpenMPTargetExecutionDirective() const { |
| 2158 | return (isOpenMPTargetExecutionDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()) && |
| 2159 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isClauseParsingMode()) || |
| 2160 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasDirective( |
| 2161 | [](OpenMPDirectiveKind K, const DeclarationNameInfo &, |
| 2162 | SourceLocation) -> bool { |
| 2163 | return isOpenMPTargetExecutionDirective(K); |
| 2164 | }, |
| 2165 | false); |
| 2166 | } |
| 2167 | |
| 2168 | VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo, |
| 2169 | unsigned StopAt) { |
| 2170 | assert(LangOpts.OpenMP && "OpenMP is not allowed")((void)0); |
| 2171 | D = getCanonicalDecl(D); |
| 2172 | |
| 2173 | auto *VD = dyn_cast<VarDecl>(D); |
| 2174 | // Do not capture constexpr variables. |
| 2175 | if (VD && VD->isConstexpr()) |
| 2176 | return nullptr; |
| 2177 | |
| 2178 | // If we want to determine whether the variable should be captured from the |
| 2179 | // perspective of the current capturing scope, and we've already left all the |
| 2180 | // capturing scopes of the top directive on the stack, check from the |
| 2181 | // perspective of its parent directive (if any) instead. |
| 2182 | DSAStackTy::ParentDirectiveScope InParentDirectiveRAII( |
| 2183 | *DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), CheckScopeInfo && DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isBodyComplete()); |
| 2184 | |
| 2185 | // If we are attempting to capture a global variable in a directive with |
| 2186 | // 'target' we return true so that this global is also mapped to the device. |
| 2187 | // |
| 2188 | if (VD && !VD->hasLocalStorage() && |
| 2189 | (getCurCapturedRegion() || getCurBlock() || getCurLambda())) { |
| 2190 | if (isInOpenMPTargetExecutionDirective()) { |
| 2191 | DSAStackTy::DSAVarData DVarTop = |
| 2192 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getTopDSA(D, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isClauseParsingMode()); |
| 2193 | if (DVarTop.CKind != OMPC_unknown && DVarTop.RefExpr) |
| 2194 | return VD; |
| 2195 | // If the declaration is enclosed in a 'declare target' directive, |
| 2196 | // then it should not be captured. |
| 2197 | // |
| 2198 | if (OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD)) |
| 2199 | return nullptr; |
| 2200 | CapturedRegionScopeInfo *CSI = nullptr; |
| 2201 | for (FunctionScopeInfo *FSI : llvm::drop_begin( |
| 2202 | llvm::reverse(FunctionScopes), |
| 2203 | CheckScopeInfo ? (FunctionScopes.size() - (StopAt + 1)) : 0)) { |
| 2204 | if (!isa<CapturingScopeInfo>(FSI)) |
| 2205 | return nullptr; |
| 2206 | if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI)) |
| 2207 | if (RSI->CapRegionKind == CR_OpenMP) { |
| 2208 | CSI = RSI; |
| 2209 | break; |
| 2210 | } |
| 2211 | } |
| 2212 | assert(CSI && "Failed to find CapturedRegionScopeInfo")((void)0); |
| 2213 | SmallVector<OpenMPDirectiveKind, 4> Regions; |
| 2214 | getOpenMPCaptureRegions(Regions, |
| 2215 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDirective(CSI->OpenMPLevel)); |
| 2216 | if (Regions[CSI->OpenMPCaptureLevel] != OMPD_task) |
| 2217 | return VD; |
| 2218 | } |
| 2219 | if (isInOpenMPDeclareTargetContext()) { |
| 2220 | // Try to mark variable as declare target if it is used in capturing |
| 2221 | // regions. |
| 2222 | if (LangOpts.OpenMP <= 45 && |
| 2223 | !OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD)) |
| 2224 | checkDeclIsAllowedInOpenMPTarget(nullptr, VD); |
| 2225 | return nullptr; |
| 2226 | } |
| 2227 | } |
| 2228 | |
| 2229 | if (CheckScopeInfo) { |
| 2230 | bool OpenMPFound = false; |
| 2231 | for (unsigned I = StopAt + 1; I > 0; --I) { |
| 2232 | FunctionScopeInfo *FSI = FunctionScopes[I - 1]; |
| 2233 | if(!isa<CapturingScopeInfo>(FSI)) |
| 2234 | return nullptr; |
| 2235 | if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI)) |
| 2236 | if (RSI->CapRegionKind == CR_OpenMP) { |
| 2237 | OpenMPFound = true; |
| 2238 | break; |
| 2239 | } |
| 2240 | } |
| 2241 | if (!OpenMPFound) |
| 2242 | return nullptr; |
| 2243 | } |
| 2244 | |
| 2245 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective() != OMPD_unknown && |
| 2246 | (!DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isClauseParsingMode() || |
| 2247 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getParentDirective() != OMPD_unknown)) { |
| 2248 | auto &&Info = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isLoopControlVariable(D); |
| 2249 | if (Info.first || |
| 2250 | (VD && VD->hasLocalStorage() && |
| 2251 | isImplicitOrExplicitTaskingRegion(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective())) || |
| 2252 | (VD && DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isForceVarCapturing())) |
| 2253 | return VD ? VD : Info.second; |
| 2254 | DSAStackTy::DSAVarData DVarTop = |
| 2255 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getTopDSA(D, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isClauseParsingMode()); |
| 2256 | if (DVarTop.CKind != OMPC_unknown && isOpenMPPrivate(DVarTop.CKind) && |
| 2257 | (!VD || VD->hasLocalStorage() || !DVarTop.AppliedToPointee)) |
| 2258 | return VD ? VD : cast<VarDecl>(DVarTop.PrivateCopy->getDecl()); |
| 2259 | // Threadprivate variables must not be captured. |
| 2260 | if (isOpenMPThreadPrivate(DVarTop.CKind)) |
| 2261 | return nullptr; |
| 2262 | // The variable is not private or it is the variable in the directive with |
| 2263 | // default(none) clause and not used in any clause. |
| 2264 | DSAStackTy::DSAVarData DVarPrivate = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasDSA( |
| 2265 | D, |
| 2266 | [](OpenMPClauseKind C, bool AppliedToPointee) { |
| 2267 | return isOpenMPPrivate(C) && !AppliedToPointee; |
| 2268 | }, |
| 2269 | [](OpenMPDirectiveKind) { return true; }, |
| 2270 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isClauseParsingMode()); |
| 2271 | // Global shared must not be captured. |
| 2272 | if (VD && !VD->hasLocalStorage() && DVarPrivate.CKind == OMPC_unknown && |
| 2273 | ((DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDefaultDSA() != DSA_none && |
| 2274 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDefaultDSA() != DSA_firstprivate) || |
| 2275 | DVarTop.CKind == OMPC_shared)) |
| 2276 | return nullptr; |
| 2277 | if (DVarPrivate.CKind != OMPC_unknown || |
| 2278 | (VD && (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDefaultDSA() == DSA_none || |
| 2279 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDefaultDSA() == DSA_firstprivate))) |
| 2280 | return VD ? VD : cast<VarDecl>(DVarPrivate.PrivateCopy->getDecl()); |
| 2281 | } |
| 2282 | return nullptr; |
| 2283 | } |
| 2284 | |
| 2285 | void Sema::adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex, |
| 2286 | unsigned Level) const { |
| 2287 | FunctionScopesIndex -= getOpenMPCaptureLevels(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDirective(Level)); |
| 2288 | } |
| 2289 | |
| 2290 | void Sema::startOpenMPLoop() { |
| 2291 | assert(LangOpts.OpenMP && "OpenMP must be enabled.")((void)0); |
| 2292 | if (isOpenMPLoopDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective())) |
| 2293 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->loopInit(); |
| 2294 | } |
| 2295 | |
| 2296 | void Sema::startOpenMPCXXRangeFor() { |
| 2297 | assert(LangOpts.OpenMP && "OpenMP must be enabled.")((void)0); |
| 2298 | if (isOpenMPLoopDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective())) { |
| 2299 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->resetPossibleLoopCounter(); |
| 2300 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->loopStart(); |
| 2301 | } |
| 2302 | } |
| 2303 | |
| 2304 | OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level, |
| 2305 | unsigned CapLevel) const { |
| 2306 | assert(LangOpts.OpenMP && "OpenMP is not allowed")((void)0); |
| 2307 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDirective( |
| 2308 | [](OpenMPDirectiveKind K) { return isOpenMPTaskingDirective(K); }, |
| 2309 | Level)) { |
| 2310 | bool IsTriviallyCopyable = |
| 2311 | D->getType().getNonReferenceType().isTriviallyCopyableType(Context) && |
| 2312 | !D->getType() |
| 2313 | .getNonReferenceType() |
| 2314 | .getCanonicalType() |
| 2315 | ->getAsCXXRecordDecl(); |
| 2316 | OpenMPDirectiveKind DKind = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDirective(Level); |
| 2317 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; |
| 2318 | getOpenMPCaptureRegions(CaptureRegions, DKind); |
| 2319 | if (isOpenMPTaskingDirective(CaptureRegions[CapLevel]) && |
| 2320 | (IsTriviallyCopyable || |
| 2321 | !isOpenMPTaskLoopDirective(CaptureRegions[CapLevel]))) { |
| 2322 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2323 | D, |
| 2324 | [](OpenMPClauseKind K, bool) { return K == OMPC_firstprivate; }, |
| 2325 | Level, /*NotLastprivate=*/true)) |
| 2326 | return OMPC_firstprivate; |
| 2327 | DSAStackTy::DSAVarData DVar = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getImplicitDSA(D, Level); |
| 2328 | if (DVar.CKind != OMPC_shared && |
| 2329 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isLoopControlVariable(D, Level).first && !DVar.RefExpr) { |
| 2330 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->addImplicitTaskFirstprivate(Level, D); |
| 2331 | return OMPC_firstprivate; |
| 2332 | } |
| 2333 | } |
| 2334 | } |
| 2335 | if (isOpenMPLoopDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective())) { |
| 2336 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getAssociatedLoops() > 0 && |
| 2337 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isLoopStarted()) { |
| 2338 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->resetPossibleLoopCounter(D); |
| 2339 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->loopStart(); |
| 2340 | return OMPC_private; |
| 2341 | } |
| 2342 | if ((DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getPossiblyLoopCunter() == D->getCanonicalDecl() || |
| 2343 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isLoopControlVariable(D).first) && |
| 2344 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2345 | D, [](OpenMPClauseKind K, bool) { return K != OMPC_private; }, |
| 2346 | Level) && |
| 2347 | !isOpenMPSimdDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective())) |
| 2348 | return OMPC_private; |
| 2349 | } |
| 2350 | if (const auto *VD = dyn_cast<VarDecl>(D)) { |
| 2351 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isThreadPrivate(const_cast<VarDecl *>(VD)) && |
| 2352 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isForceVarCapturing() && |
| 2353 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2354 | D, [](OpenMPClauseKind K, bool) { return K == OMPC_copyin; }, |
| 2355 | Level)) |
| 2356 | return OMPC_private; |
| 2357 | } |
| 2358 | // User-defined allocators are private since they must be defined in the |
| 2359 | // context of target region. |
| 2360 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDirective(isOpenMPTargetExecutionDirective, Level) && |
| 2361 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isUsesAllocatorsDecl(Level, D).getValueOr( |
| 2362 | DSAStackTy::UsesAllocatorsDeclKind::AllocatorTrait) == |
| 2363 | DSAStackTy::UsesAllocatorsDeclKind::UserDefinedAllocator) |
| 2364 | return OMPC_private; |
| 2365 | return (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2366 | D, [](OpenMPClauseKind K, bool) { return K == OMPC_private; }, |
| 2367 | Level) || |
| 2368 | (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isClauseParsingMode() && |
| 2369 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getClauseParsingMode() == OMPC_private) || |
| 2370 | // Consider taskgroup reduction descriptor variable a private |
| 2371 | // to avoid possible capture in the region. |
| 2372 | (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDirective( |
| 2373 | [](OpenMPDirectiveKind K) { |
| 2374 | return K == OMPD_taskgroup || |
| 2375 | ((isOpenMPParallelDirective(K) || |
| 2376 | isOpenMPWorksharingDirective(K)) && |
| 2377 | !isOpenMPSimdDirective(K)); |
| 2378 | }, |
| 2379 | Level) && |
| 2380 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isTaskgroupReductionRef(D, Level))) |
| 2381 | ? OMPC_private |
| 2382 | : OMPC_unknown; |
| 2383 | } |
| 2384 | |
| 2385 | void Sema::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D, |
| 2386 | unsigned Level) { |
| 2387 | assert(LangOpts.OpenMP && "OpenMP is not allowed")((void)0); |
| 2388 | D = getCanonicalDecl(D); |
| 2389 | OpenMPClauseKind OMPC = OMPC_unknown; |
| 2390 | for (unsigned I = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getNestingLevel() + 1; I > Level; --I) { |
| 2391 | const unsigned NewLevel = I - 1; |
| 2392 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDSA( |
| 2393 | D, |
| 2394 | [&OMPC](const OpenMPClauseKind K, bool AppliedToPointee) { |
| 2395 | if (isOpenMPPrivate(K) && !AppliedToPointee) { |
| 2396 | OMPC = K; |
| 2397 | return true; |
| 2398 | } |
| 2399 | return false; |
| 2400 | }, |
| 2401 | NewLevel)) |
| 2402 | break; |
| 2403 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->checkMappableExprComponentListsForDeclAtLevel( |
| 2404 | D, NewLevel, |
| 2405 | [](OMPClauseMappableExprCommon::MappableExprComponentListRef, |
| 2406 | OpenMPClauseKind) { return true; })) { |
| 2407 | OMPC = OMPC_map; |
| 2408 | break; |
| 2409 | } |
| 2410 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDirective(isOpenMPTargetExecutionDirective, |
| 2411 | NewLevel)) { |
| 2412 | OMPC = OMPC_map; |
| 2413 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->mustBeFirstprivateAtLevel( |
| 2414 | NewLevel, getVariableCategoryFromDecl(LangOpts, D))) |
| 2415 | OMPC = OMPC_firstprivate; |
| 2416 | break; |
| 2417 | } |
| 2418 | } |
| 2419 | if (OMPC != OMPC_unknown) |
| 2420 | FD->addAttr(OMPCaptureKindAttr::CreateImplicit(Context, unsigned(OMPC))); |
| 2421 | } |
| 2422 | |
| 2423 | bool Sema::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level, |
| 2424 | unsigned CaptureLevel) const { |
| 2425 | assert(LangOpts.OpenMP && "OpenMP is not allowed")((void)0); |
| 2426 | // Return true if the current level is no longer enclosed in a target region. |
| 2427 | |
| 2428 | SmallVector<OpenMPDirectiveKind, 4> Regions; |
| 2429 | getOpenMPCaptureRegions(Regions, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDirective(Level)); |
| 2430 | const auto *VD = dyn_cast<VarDecl>(D); |
| 2431 | return VD && !VD->hasLocalStorage() && |
| 2432 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasExplicitDirective(isOpenMPTargetExecutionDirective, |
| 2433 | Level) && |
| 2434 | Regions[CaptureLevel] != OMPD_task; |
| 2435 | } |
| 2436 | |
| 2437 | bool Sema::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level, |
| 2438 | unsigned CaptureLevel) const { |
| 2439 | assert(LangOpts.OpenMP && "OpenMP is not allowed")((void)0); |
| 2440 | // Return true if the current level is no longer enclosed in a target region. |
| 2441 | |
| 2442 | if (const auto *VD = dyn_cast<VarDecl>(D)) { |
| 2443 | if (!VD->hasLocalStorage()) { |
| 2444 | if (isInOpenMPTargetExecutionDirective()) |
| 2445 | return true; |
| 2446 | DSAStackTy::DSAVarData TopDVar = |
| 2447 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getTopDSA(D, /*FromParent=*/false); |
| 2448 | unsigned NumLevels = |
| 2449 | getOpenMPCaptureLevels(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDirective(Level)); |
| 2450 | if (Level == 0) |
| 2451 | return (NumLevels == CaptureLevel + 1) && TopDVar.CKind != OMPC_shared; |
| 2452 | do { |
| 2453 | --Level; |
| 2454 | DSAStackTy::DSAVarData DVar = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getImplicitDSA(D, Level); |
| 2455 | if (DVar.CKind != OMPC_shared) |
| 2456 | return true; |
| 2457 | } while (Level > 0); |
| 2458 | } |
| 2459 | } |
| 2460 | return true; |
| 2461 | } |
| 2462 | |
| 2463 | void Sema::DestroyDataSharingAttributesStack() { delete DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ); } |
| 2464 | |
| 2465 | void Sema::ActOnOpenMPBeginDeclareVariant(SourceLocation Loc, |
| 2466 | OMPTraitInfo &TI) { |
| 2467 | OMPDeclareVariantScopes.push_back(OMPDeclareVariantScope(TI)); |
| 2468 | } |
| 2469 | |
| 2470 | void Sema::ActOnOpenMPEndDeclareVariant() { |
| 2471 | assert(isInOpenMPDeclareVariantScope() &&((void)0) |
| 2472 | "Not in OpenMP declare variant scope!")((void)0); |
| 2473 | |
| 2474 | OMPDeclareVariantScopes.pop_back(); |
| 2475 | } |
| 2476 | |
| 2477 | void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller, |
| 2478 | const FunctionDecl *Callee, |
| 2479 | SourceLocation Loc) { |
| 2480 | assert(LangOpts.OpenMP && "Expected OpenMP compilation mode.")((void)0); |
| 2481 | Optional<OMPDeclareTargetDeclAttr::DevTypeTy> DevTy = |
| 2482 | OMPDeclareTargetDeclAttr::getDeviceType(Caller->getMostRecentDecl()); |
| 2483 | // Ignore host functions during device analyzis. |
| 2484 | if (LangOpts.OpenMPIsDevice && |
| 2485 | (!DevTy || *DevTy == OMPDeclareTargetDeclAttr::DT_Host)) |
| 2486 | return; |
| 2487 | // Ignore nohost functions during host analyzis. |
| 2488 | if (!LangOpts.OpenMPIsDevice && DevTy && |
| 2489 | *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) |
| 2490 | return; |
| 2491 | const FunctionDecl *FD = Callee->getMostRecentDecl(); |
| 2492 | DevTy = OMPDeclareTargetDeclAttr::getDeviceType(FD); |
| 2493 | if (LangOpts.OpenMPIsDevice && DevTy && |
| 2494 | *DevTy == OMPDeclareTargetDeclAttr::DT_Host) { |
| 2495 | // Diagnose host function called during device codegen. |
| 2496 | StringRef HostDevTy = |
| 2497 | getOpenMPSimpleClauseTypeName(OMPC_device_type, OMPC_DEVICE_TYPE_host); |
| 2498 | Diag(Loc, diag::err_omp_wrong_device_function_call) << HostDevTy << 0; |
| 2499 | Diag(*OMPDeclareTargetDeclAttr::getLocation(FD), |
| 2500 | diag::note_omp_marked_device_type_here) |
| 2501 | << HostDevTy; |
| 2502 | return; |
| 2503 | } |
| 2504 | if (!LangOpts.OpenMPIsDevice && DevTy && |
| 2505 | *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) { |
| 2506 | // Diagnose nohost function called during host codegen. |
| 2507 | StringRef NoHostDevTy = getOpenMPSimpleClauseTypeName( |
| 2508 | OMPC_device_type, OMPC_DEVICE_TYPE_nohost); |
| 2509 | Diag(Loc, diag::err_omp_wrong_device_function_call) << NoHostDevTy << 1; |
| 2510 | Diag(*OMPDeclareTargetDeclAttr::getLocation(FD), |
| 2511 | diag::note_omp_marked_device_type_here) |
| 2512 | << NoHostDevTy; |
| 2513 | } |
| 2514 | } |
| 2515 | |
| 2516 | void Sema::StartOpenMPDSABlock(OpenMPDirectiveKind DKind, |
| 2517 | const DeclarationNameInfo &DirName, |
| 2518 | Scope *CurScope, SourceLocation Loc) { |
| 2519 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->push(DKind, DirName, CurScope, Loc); |
| 2520 | PushExpressionEvaluationContext( |
| 2521 | ExpressionEvaluationContext::PotentiallyEvaluated); |
| 2522 | } |
| 2523 | |
| 2524 | void Sema::StartOpenMPClause(OpenMPClauseKind K) { |
| 2525 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setClauseParsingMode(K); |
| 2526 | } |
| 2527 | |
| 2528 | void Sema::EndOpenMPClause() { |
| 2529 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setClauseParsingMode(/*K=*/OMPC_unknown); |
| 2530 | CleanupVarDeclMarking(); |
| 2531 | } |
| 2532 | |
| 2533 | static std::pair<ValueDecl *, bool> |
| 2534 | getPrivateItem(Sema &S, Expr *&RefExpr, SourceLocation &ELoc, |
| 2535 | SourceRange &ERange, bool AllowArraySection = false); |
| 2536 | |
| 2537 | /// Check consistency of the reduction clauses. |
| 2538 | static void checkReductionClauses(Sema &S, DSAStackTy *Stack, |
| 2539 | ArrayRef<OMPClause *> Clauses) { |
| 2540 | bool InscanFound = false; |
| 2541 | SourceLocation InscanLoc; |
| 2542 | // OpenMP 5.0, 2.19.5.4 reduction Clause, Restrictions. |
| 2543 | // A reduction clause without the inscan reduction-modifier may not appear on |
| 2544 | // a construct on which a reduction clause with the inscan reduction-modifier |
| 2545 | // appears. |
| 2546 | for (OMPClause *C : Clauses) { |
| 2547 | if (C->getClauseKind() != OMPC_reduction) |
| 2548 | continue; |
| 2549 | auto *RC = cast<OMPReductionClause>(C); |
| 2550 | if (RC->getModifier() == OMPC_REDUCTION_inscan) { |
| 2551 | InscanFound = true; |
| 2552 | InscanLoc = RC->getModifierLoc(); |
| 2553 | continue; |
| 2554 | } |
| 2555 | if (RC->getModifier() == OMPC_REDUCTION_task) { |
| 2556 | // OpenMP 5.0, 2.19.5.4 reduction Clause. |
| 2557 | // A reduction clause with the task reduction-modifier may only appear on |
| 2558 | // a parallel construct, a worksharing construct or a combined or |
| 2559 | // composite construct for which any of the aforementioned constructs is a |
| 2560 | // constituent construct and simd or loop are not constituent constructs. |
| 2561 | OpenMPDirectiveKind CurDir = Stack->getCurrentDirective(); |
| 2562 | if (!(isOpenMPParallelDirective(CurDir) || |
| 2563 | isOpenMPWorksharingDirective(CurDir)) || |
| 2564 | isOpenMPSimdDirective(CurDir)) |
| 2565 | S.Diag(RC->getModifierLoc(), |
| 2566 | diag::err_omp_reduction_task_not_parallel_or_worksharing); |
| 2567 | continue; |
| 2568 | } |
| 2569 | } |
| 2570 | if (InscanFound) { |
| 2571 | for (OMPClause *C : Clauses) { |
| 2572 | if (C->getClauseKind() != OMPC_reduction) |
| 2573 | continue; |
| 2574 | auto *RC = cast<OMPReductionClause>(C); |
| 2575 | if (RC->getModifier() != OMPC_REDUCTION_inscan) { |
| 2576 | S.Diag(RC->getModifier() == OMPC_REDUCTION_unknown |
| 2577 | ? RC->getBeginLoc() |
| 2578 | : RC->getModifierLoc(), |
| 2579 | diag::err_omp_inscan_reduction_expected); |
| 2580 | S.Diag(InscanLoc, diag::note_omp_previous_inscan_reduction); |
| 2581 | continue; |
| 2582 | } |
| 2583 | for (Expr *Ref : RC->varlists()) { |
| 2584 | assert(Ref && "NULL expr in OpenMP nontemporal clause.")((void)0); |
| 2585 | SourceLocation ELoc; |
| 2586 | SourceRange ERange; |
| 2587 | Expr *SimpleRefExpr = Ref; |
| 2588 | auto Res = getPrivateItem(S, SimpleRefExpr, ELoc, ERange, |
| 2589 | /*AllowArraySection=*/true); |
| 2590 | ValueDecl *D = Res.first; |
| 2591 | if (!D) |
| 2592 | continue; |
| 2593 | if (!Stack->isUsedInScanDirective(getCanonicalDecl(D))) { |
| 2594 | S.Diag(Ref->getExprLoc(), |
| 2595 | diag::err_omp_reduction_not_inclusive_exclusive) |
| 2596 | << Ref->getSourceRange(); |
| 2597 | } |
| 2598 | } |
| 2599 | } |
| 2600 | } |
| 2601 | } |
| 2602 | |
| 2603 | static void checkAllocateClauses(Sema &S, DSAStackTy *Stack, |
| 2604 | ArrayRef<OMPClause *> Clauses); |
| 2605 | static DeclRefExpr *buildCapture(Sema &S, ValueDecl *D, Expr *CaptureExpr, |
| 2606 | bool WithInit); |
| 2607 | |
| 2608 | static void reportOriginalDsa(Sema &SemaRef, const DSAStackTy *Stack, |
| 2609 | const ValueDecl *D, |
| 2610 | const DSAStackTy::DSAVarData &DVar, |
| 2611 | bool IsLoopIterVar = false); |
| 2612 | |
| 2613 | void Sema::EndOpenMPDSABlock(Stmt *CurDirective) { |
| 2614 | // OpenMP [2.14.3.5, Restrictions, C/C++, p.1] |
| 2615 | // A variable of class type (or array thereof) that appears in a lastprivate |
| 2616 | // clause requires an accessible, unambiguous default constructor for the |
| 2617 | // class type, unless the list item is also specified in a firstprivate |
| 2618 | // clause. |
| 2619 | if (const auto *D = dyn_cast_or_null<OMPExecutableDirective>(CurDirective)) { |
| 2620 | for (OMPClause *C : D->clauses()) { |
| 2621 | if (auto *Clause = dyn_cast<OMPLastprivateClause>(C)) { |
| 2622 | SmallVector<Expr *, 8> PrivateCopies; |
| 2623 | for (Expr *DE : Clause->varlists()) { |
| 2624 | if (DE->isValueDependent() || DE->isTypeDependent()) { |
| 2625 | PrivateCopies.push_back(nullptr); |
| 2626 | continue; |
| 2627 | } |
| 2628 | auto *DRE = cast<DeclRefExpr>(DE->IgnoreParens()); |
| 2629 | auto *VD = cast<VarDecl>(DRE->getDecl()); |
| 2630 | QualType Type = VD->getType().getNonReferenceType(); |
| 2631 | const DSAStackTy::DSAVarData DVar = |
| 2632 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getTopDSA(VD, /*FromParent=*/false); |
| 2633 | if (DVar.CKind == OMPC_lastprivate) { |
| 2634 | // Generate helper private variable and initialize it with the |
| 2635 | // default value. The address of the original variable is replaced |
| 2636 | // by the address of the new private variable in CodeGen. This new |
| 2637 | // variable is not added to IdResolver, so the code in the OpenMP |
| 2638 | // region uses original variable for proper diagnostics. |
| 2639 | VarDecl *VDPrivate = buildVarDecl( |
| 2640 | *this, DE->getExprLoc(), Type.getUnqualifiedType(), |
| 2641 | VD->getName(), VD->hasAttrs() ? &VD->getAttrs() : nullptr, DRE); |
| 2642 | ActOnUninitializedDecl(VDPrivate); |
| 2643 | if (VDPrivate->isInvalidDecl()) { |
| 2644 | PrivateCopies.push_back(nullptr); |
| 2645 | continue; |
| 2646 | } |
| 2647 | PrivateCopies.push_back(buildDeclRefExpr( |
| 2648 | *this, VDPrivate, DE->getType(), DE->getExprLoc())); |
| 2649 | } else { |
| 2650 | // The variable is also a firstprivate, so initialization sequence |
| 2651 | // for private copy is generated already. |
| 2652 | PrivateCopies.push_back(nullptr); |
| 2653 | } |
| 2654 | } |
| 2655 | Clause->setPrivateCopies(PrivateCopies); |
| 2656 | continue; |
| 2657 | } |
| 2658 | // Finalize nontemporal clause by handling private copies, if any. |
| 2659 | if (auto *Clause = dyn_cast<OMPNontemporalClause>(C)) { |
| 2660 | SmallVector<Expr *, 8> PrivateRefs; |
| 2661 | for (Expr *RefExpr : Clause->varlists()) { |
| 2662 | assert(RefExpr && "NULL expr in OpenMP nontemporal clause.")((void)0); |
| 2663 | SourceLocation ELoc; |
| 2664 | SourceRange ERange; |
| 2665 | Expr *SimpleRefExpr = RefExpr; |
| 2666 | auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange); |
| 2667 | if (Res.second) |
| 2668 | // It will be analyzed later. |
| 2669 | PrivateRefs.push_back(RefExpr); |
| 2670 | ValueDecl *D = Res.first; |
| 2671 | if (!D) |
| 2672 | continue; |
| 2673 | |
| 2674 | const DSAStackTy::DSAVarData DVar = |
| 2675 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getTopDSA(D, /*FromParent=*/false); |
| 2676 | PrivateRefs.push_back(DVar.PrivateCopy ? DVar.PrivateCopy |
| 2677 | : SimpleRefExpr); |
| 2678 | } |
| 2679 | Clause->setPrivateRefs(PrivateRefs); |
| 2680 | continue; |
| 2681 | } |
| 2682 | if (auto *Clause = dyn_cast<OMPUsesAllocatorsClause>(C)) { |
| 2683 | for (unsigned I = 0, E = Clause->getNumberOfAllocators(); I < E; ++I) { |
| 2684 | OMPUsesAllocatorsClause::Data D = Clause->getAllocatorData(I); |
| 2685 | auto *DRE = dyn_cast<DeclRefExpr>(D.Allocator->IgnoreParenImpCasts()); |
| 2686 | if (!DRE) |
| 2687 | continue; |
| 2688 | ValueDecl *VD = DRE->getDecl(); |
| 2689 | if (!VD || !isa<VarDecl>(VD)) |
| 2690 | continue; |
| 2691 | DSAStackTy::DSAVarData DVar = |
| 2692 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getTopDSA(VD, /*FromParent=*/false); |
| 2693 | // OpenMP [2.12.5, target Construct] |
| 2694 | // Memory allocators that appear in a uses_allocators clause cannot |
| 2695 | // appear in other data-sharing attribute clauses or data-mapping |
| 2696 | // attribute clauses in the same construct. |
| 2697 | Expr *MapExpr = nullptr; |
| 2698 | if (DVar.RefExpr || |
| 2699 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->checkMappableExprComponentListsForDecl( |
| 2700 | VD, /*CurrentRegionOnly=*/true, |
| 2701 | [VD, &MapExpr]( |
| 2702 | OMPClauseMappableExprCommon::MappableExprComponentListRef |
| 2703 | MapExprComponents, |
| 2704 | OpenMPClauseKind C) { |
| 2705 | auto MI = MapExprComponents.rbegin(); |
| 2706 | auto ME = MapExprComponents.rend(); |
| 2707 | if (MI != ME && |
| 2708 | MI->getAssociatedDeclaration()->getCanonicalDecl() == |
| 2709 | VD->getCanonicalDecl()) { |
| 2710 | MapExpr = MI->getAssociatedExpression(); |
| 2711 | return true; |
| 2712 | } |
| 2713 | return false; |
| 2714 | })) { |
| 2715 | Diag(D.Allocator->getExprLoc(), |
| 2716 | diag::err_omp_allocator_used_in_clauses) |
| 2717 | << D.Allocator->getSourceRange(); |
| 2718 | if (DVar.RefExpr) |
| 2719 | reportOriginalDsa(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), VD, DVar); |
| 2720 | else |
| 2721 | Diag(MapExpr->getExprLoc(), diag::note_used_here) |
| 2722 | << MapExpr->getSourceRange(); |
| 2723 | } |
| 2724 | } |
| 2725 | continue; |
| 2726 | } |
| 2727 | } |
| 2728 | // Check allocate clauses. |
| 2729 | if (!CurContext->isDependentContext()) |
| 2730 | checkAllocateClauses(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), D->clauses()); |
| 2731 | checkReductionClauses(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), D->clauses()); |
| 2732 | } |
| 2733 | |
| 2734 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->pop(); |
| 2735 | DiscardCleanupsInEvaluationContext(); |
| 2736 | PopExpressionEvaluationContext(); |
| 2737 | } |
| 2738 | |
| 2739 | static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV, |
| 2740 | Expr *NumIterations, Sema &SemaRef, |
| 2741 | Scope *S, DSAStackTy *Stack); |
| 2742 | |
| 2743 | namespace { |
| 2744 | |
| 2745 | class VarDeclFilterCCC final : public CorrectionCandidateCallback { |
| 2746 | private: |
| 2747 | Sema &SemaRef; |
| 2748 | |
| 2749 | public: |
| 2750 | explicit VarDeclFilterCCC(Sema &S) : SemaRef(S) {} |
| 2751 | bool ValidateCandidate(const TypoCorrection &Candidate) override { |
| 2752 | NamedDecl *ND = Candidate.getCorrectionDecl(); |
| 2753 | if (const auto *VD = dyn_cast_or_null<VarDecl>(ND)) { |
| 2754 | return VD->hasGlobalStorage() && |
| 2755 | SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(), |
| 2756 | SemaRef.getCurScope()); |
| 2757 | } |
| 2758 | return false; |
| 2759 | } |
| 2760 | |
| 2761 | std::unique_ptr<CorrectionCandidateCallback> clone() override { |
| 2762 | return std::make_unique<VarDeclFilterCCC>(*this); |
| 2763 | } |
| 2764 | |
| 2765 | }; |
| 2766 | |
| 2767 | class VarOrFuncDeclFilterCCC final : public CorrectionCandidateCallback { |
| 2768 | private: |
| 2769 | Sema &SemaRef; |
| 2770 | |
| 2771 | public: |
| 2772 | explicit VarOrFuncDeclFilterCCC(Sema &S) : SemaRef(S) {} |
| 2773 | bool ValidateCandidate(const TypoCorrection &Candidate) override { |
| 2774 | NamedDecl *ND = Candidate.getCorrectionDecl(); |
| 2775 | if (ND && ((isa<VarDecl>(ND) && ND->getKind() == Decl::Var) || |
| 2776 | isa<FunctionDecl>(ND))) { |
| 2777 | return SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(), |
| 2778 | SemaRef.getCurScope()); |
| 2779 | } |
| 2780 | return false; |
| 2781 | } |
| 2782 | |
| 2783 | std::unique_ptr<CorrectionCandidateCallback> clone() override { |
| 2784 | return std::make_unique<VarOrFuncDeclFilterCCC>(*this); |
| 2785 | } |
| 2786 | }; |
| 2787 | |
| 2788 | } // namespace |
| 2789 | |
| 2790 | ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope, |
| 2791 | CXXScopeSpec &ScopeSpec, |
| 2792 | const DeclarationNameInfo &Id, |
| 2793 | OpenMPDirectiveKind Kind) { |
| 2794 | LookupResult Lookup(*this, Id, LookupOrdinaryName); |
| 2795 | LookupParsedName(Lookup, CurScope, &ScopeSpec, true); |
| 2796 | |
| 2797 | if (Lookup.isAmbiguous()) |
| 2798 | return ExprError(); |
| 2799 | |
| 2800 | VarDecl *VD; |
| 2801 | if (!Lookup.isSingleResult()) { |
| 2802 | VarDeclFilterCCC CCC(*this); |
| 2803 | if (TypoCorrection Corrected = |
| 2804 | CorrectTypo(Id, LookupOrdinaryName, CurScope, nullptr, CCC, |
| 2805 | CTK_ErrorRecovery)) { |
| 2806 | diagnoseTypo(Corrected, |
| 2807 | PDiag(Lookup.empty() |
| 2808 | ? diag::err_undeclared_var_use_suggest |
| 2809 | : diag::err_omp_expected_var_arg_suggest) |
| 2810 | << Id.getName()); |
| 2811 | VD = Corrected.getCorrectionDeclAs<VarDecl>(); |
| 2812 | } else { |
| 2813 | Diag(Id.getLoc(), Lookup.empty() ? diag::err_undeclared_var_use |
| 2814 | : diag::err_omp_expected_var_arg) |
| 2815 | << Id.getName(); |
| 2816 | return ExprError(); |
| 2817 | } |
| 2818 | } else if (!(VD = Lookup.getAsSingle<VarDecl>())) { |
| 2819 | Diag(Id.getLoc(), diag::err_omp_expected_var_arg) << Id.getName(); |
| 2820 | Diag(Lookup.getFoundDecl()->getLocation(), diag::note_declared_at); |
| 2821 | return ExprError(); |
| 2822 | } |
| 2823 | Lookup.suppressDiagnostics(); |
| 2824 | |
| 2825 | // OpenMP [2.9.2, Syntax, C/C++] |
| 2826 | // Variables must be file-scope, namespace-scope, or static block-scope. |
| 2827 | if (Kind == OMPD_threadprivate && !VD->hasGlobalStorage()) { |
| 2828 | Diag(Id.getLoc(), diag::err_omp_global_var_arg) |
| 2829 | << getOpenMPDirectiveName(Kind) << !VD->isStaticLocal(); |
| 2830 | bool IsDecl = |
| 2831 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 2832 | Diag(VD->getLocation(), |
| 2833 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 2834 | << VD; |
| 2835 | return ExprError(); |
| 2836 | } |
| 2837 | |
| 2838 | VarDecl *CanonicalVD = VD->getCanonicalDecl(); |
| 2839 | NamedDecl *ND = CanonicalVD; |
| 2840 | // OpenMP [2.9.2, Restrictions, C/C++, p.2] |
| 2841 | // A threadprivate directive for file-scope variables must appear outside |
| 2842 | // any definition or declaration. |
| 2843 | if (CanonicalVD->getDeclContext()->isTranslationUnit() && |
| 2844 | !getCurLexicalContext()->isTranslationUnit()) { |
| 2845 | Diag(Id.getLoc(), diag::err_omp_var_scope) |
| 2846 | << getOpenMPDirectiveName(Kind) << VD; |
| 2847 | bool IsDecl = |
| 2848 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 2849 | Diag(VD->getLocation(), |
| 2850 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 2851 | << VD; |
| 2852 | return ExprError(); |
| 2853 | } |
| 2854 | // OpenMP [2.9.2, Restrictions, C/C++, p.3] |
| 2855 | // A threadprivate directive for static class member variables must appear |
| 2856 | // in the class definition, in the same scope in which the member |
| 2857 | // variables are declared. |
| 2858 | if (CanonicalVD->isStaticDataMember() && |
| 2859 | !CanonicalVD->getDeclContext()->Equals(getCurLexicalContext())) { |
| 2860 | Diag(Id.getLoc(), diag::err_omp_var_scope) |
| 2861 | << getOpenMPDirectiveName(Kind) << VD; |
| 2862 | bool IsDecl = |
| 2863 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 2864 | Diag(VD->getLocation(), |
| 2865 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 2866 | << VD; |
| 2867 | return ExprError(); |
| 2868 | } |
| 2869 | // OpenMP [2.9.2, Restrictions, C/C++, p.4] |
| 2870 | // A threadprivate directive for namespace-scope variables must appear |
| 2871 | // outside any definition or declaration other than the namespace |
| 2872 | // definition itself. |
| 2873 | if (CanonicalVD->getDeclContext()->isNamespace() && |
| 2874 | (!getCurLexicalContext()->isFileContext() || |
| 2875 | !getCurLexicalContext()->Encloses(CanonicalVD->getDeclContext()))) { |
| 2876 | Diag(Id.getLoc(), diag::err_omp_var_scope) |
| 2877 | << getOpenMPDirectiveName(Kind) << VD; |
| 2878 | bool IsDecl = |
| 2879 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 2880 | Diag(VD->getLocation(), |
| 2881 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 2882 | << VD; |
| 2883 | return ExprError(); |
| 2884 | } |
| 2885 | // OpenMP [2.9.2, Restrictions, C/C++, p.6] |
| 2886 | // A threadprivate directive for static block-scope variables must appear |
| 2887 | // in the scope of the variable and not in a nested scope. |
| 2888 | if (CanonicalVD->isLocalVarDecl() && CurScope && |
| 2889 | !isDeclInScope(ND, getCurLexicalContext(), CurScope)) { |
| 2890 | Diag(Id.getLoc(), diag::err_omp_var_scope) |
| 2891 | << getOpenMPDirectiveName(Kind) << VD; |
| 2892 | bool IsDecl = |
| 2893 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 2894 | Diag(VD->getLocation(), |
| 2895 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 2896 | << VD; |
| 2897 | return ExprError(); |
| 2898 | } |
| 2899 | |
| 2900 | // OpenMP [2.9.2, Restrictions, C/C++, p.2-6] |
| 2901 | // A threadprivate directive must lexically precede all references to any |
| 2902 | // of the variables in its list. |
| 2903 | if (Kind == OMPD_threadprivate && VD->isUsed() && |
| 2904 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isThreadPrivate(VD)) { |
| 2905 | Diag(Id.getLoc(), diag::err_omp_var_used) |
| 2906 | << getOpenMPDirectiveName(Kind) << VD; |
| 2907 | return ExprError(); |
| 2908 | } |
| 2909 | |
| 2910 | QualType ExprType = VD->getType().getNonReferenceType(); |
| 2911 | return DeclRefExpr::Create(Context, NestedNameSpecifierLoc(), |
| 2912 | SourceLocation(), VD, |
| 2913 | /*RefersToEnclosingVariableOrCapture=*/false, |
| 2914 | Id.getLoc(), ExprType, VK_LValue); |
| 2915 | } |
| 2916 | |
| 2917 | Sema::DeclGroupPtrTy |
| 2918 | Sema::ActOnOpenMPThreadprivateDirective(SourceLocation Loc, |
| 2919 | ArrayRef<Expr *> VarList) { |
| 2920 | if (OMPThreadPrivateDecl *D = CheckOMPThreadPrivateDecl(Loc, VarList)) { |
| 2921 | CurContext->addDecl(D); |
| 2922 | return DeclGroupPtrTy::make(DeclGroupRef(D)); |
| 2923 | } |
| 2924 | return nullptr; |
| 2925 | } |
| 2926 | |
| 2927 | namespace { |
| 2928 | class LocalVarRefChecker final |
| 2929 | : public ConstStmtVisitor<LocalVarRefChecker, bool> { |
| 2930 | Sema &SemaRef; |
| 2931 | |
| 2932 | public: |
| 2933 | bool VisitDeclRefExpr(const DeclRefExpr *E) { |
| 2934 | if (const auto *VD = dyn_cast<VarDecl>(E->getDecl())) { |
| 2935 | if (VD->hasLocalStorage()) { |
| 2936 | SemaRef.Diag(E->getBeginLoc(), |
| 2937 | diag::err_omp_local_var_in_threadprivate_init) |
| 2938 | << E->getSourceRange(); |
| 2939 | SemaRef.Diag(VD->getLocation(), diag::note_defined_here) |
| 2940 | << VD << VD->getSourceRange(); |
| 2941 | return true; |
| 2942 | } |
| 2943 | } |
| 2944 | return false; |
| 2945 | } |
| 2946 | bool VisitStmt(const Stmt *S) { |
| 2947 | for (const Stmt *Child : S->children()) { |
| 2948 | if (Child && Visit(Child)) |
| 2949 | return true; |
| 2950 | } |
| 2951 | return false; |
| 2952 | } |
| 2953 | explicit LocalVarRefChecker(Sema &SemaRef) : SemaRef(SemaRef) {} |
| 2954 | }; |
| 2955 | } // namespace |
| 2956 | |
| 2957 | OMPThreadPrivateDecl * |
| 2958 | Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) { |
| 2959 | SmallVector<Expr *, 8> Vars; |
| 2960 | for (Expr *RefExpr : VarList) { |
| 2961 | auto *DE = cast<DeclRefExpr>(RefExpr); |
| 2962 | auto *VD = cast<VarDecl>(DE->getDecl()); |
| 2963 | SourceLocation ILoc = DE->getExprLoc(); |
| 2964 | |
| 2965 | // Mark variable as used. |
| 2966 | VD->setReferenced(); |
| 2967 | VD->markUsed(Context); |
| 2968 | |
| 2969 | QualType QType = VD->getType(); |
| 2970 | if (QType->isDependentType() || QType->isInstantiationDependentType()) { |
| 2971 | // It will be analyzed later. |
| 2972 | Vars.push_back(DE); |
| 2973 | continue; |
| 2974 | } |
| 2975 | |
| 2976 | // OpenMP [2.9.2, Restrictions, C/C++, p.10] |
| 2977 | // A threadprivate variable must not have an incomplete type. |
| 2978 | if (RequireCompleteType(ILoc, VD->getType(), |
| 2979 | diag::err_omp_threadprivate_incomplete_type)) { |
| 2980 | continue; |
| 2981 | } |
| 2982 | |
| 2983 | // OpenMP [2.9.2, Restrictions, C/C++, p.10] |
| 2984 | // A threadprivate variable must not have a reference type. |
| 2985 | if (VD->getType()->isReferenceType()) { |
| 2986 | Diag(ILoc, diag::err_omp_ref_type_arg) |
| 2987 | << getOpenMPDirectiveName(OMPD_threadprivate) << VD->getType(); |
| 2988 | bool IsDecl = |
| 2989 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 2990 | Diag(VD->getLocation(), |
| 2991 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 2992 | << VD; |
| 2993 | continue; |
| 2994 | } |
| 2995 | |
| 2996 | // Check if this is a TLS variable. If TLS is not being supported, produce |
| 2997 | // the corresponding diagnostic. |
| 2998 | if ((VD->getTLSKind() != VarDecl::TLS_None && |
| 2999 | !(VD->hasAttr<OMPThreadPrivateDeclAttr>() && |
| 3000 | getLangOpts().OpenMPUseTLS && |
| 3001 | getASTContext().getTargetInfo().isTLSSupported())) || |
| 3002 | (VD->getStorageClass() == SC_Register && VD->hasAttr<AsmLabelAttr>() && |
| 3003 | !VD->isLocalVarDecl())) { |
| 3004 | Diag(ILoc, diag::err_omp_var_thread_local) |
| 3005 | << VD << ((VD->getTLSKind() != VarDecl::TLS_None) ? 0 : 1); |
| 3006 | bool IsDecl = |
| 3007 | VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly; |
| 3008 | Diag(VD->getLocation(), |
| 3009 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 3010 | << VD; |
| 3011 | continue; |
| 3012 | } |
| 3013 | |
| 3014 | // Check if initial value of threadprivate variable reference variable with |
| 3015 | // local storage (it is not supported by runtime). |
| 3016 | if (const Expr *Init = VD->getAnyInitializer()) { |
| 3017 | LocalVarRefChecker Checker(*this); |
| 3018 | if (Checker.Visit(Init)) |
| 3019 | continue; |
| 3020 | } |
| 3021 | |
| 3022 | Vars.push_back(RefExpr); |
| 3023 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->addDSA(VD, DE, OMPC_threadprivate); |
| 3024 | VD->addAttr(OMPThreadPrivateDeclAttr::CreateImplicit( |
| 3025 | Context, SourceRange(Loc, Loc))); |
| 3026 | if (ASTMutationListener *ML = Context.getASTMutationListener()) |
| 3027 | ML->DeclarationMarkedOpenMPThreadPrivate(VD); |
| 3028 | } |
| 3029 | OMPThreadPrivateDecl *D = nullptr; |
| 3030 | if (!Vars.empty()) { |
| 3031 | D = OMPThreadPrivateDecl::Create(Context, getCurLexicalContext(), Loc, |
| 3032 | Vars); |
| 3033 | D->setAccess(AS_public); |
| 3034 | } |
| 3035 | return D; |
| 3036 | } |
| 3037 | |
| 3038 | static OMPAllocateDeclAttr::AllocatorTypeTy |
| 3039 | getAllocatorKind(Sema &S, DSAStackTy *Stack, Expr *Allocator) { |
| 3040 | if (!Allocator) |
| 3041 | return OMPAllocateDeclAttr::OMPNullMemAlloc; |
| 3042 | if (Allocator->isTypeDependent() || Allocator->isValueDependent() || |
| 3043 | Allocator->isInstantiationDependent() || |
| 3044 | Allocator->containsUnexpandedParameterPack()) |
| 3045 | return OMPAllocateDeclAttr::OMPUserDefinedMemAlloc; |
| 3046 | auto AllocatorKindRes = OMPAllocateDeclAttr::OMPUserDefinedMemAlloc; |
| 3047 | const Expr *AE = Allocator->IgnoreParenImpCasts(); |
| 3048 | for (int I = 0; I < OMPAllocateDeclAttr::OMPUserDefinedMemAlloc; ++I) { |
| 3049 | auto AllocatorKind = static_cast<OMPAllocateDeclAttr::AllocatorTypeTy>(I); |
| 3050 | const Expr *DefAllocator = Stack->getAllocator(AllocatorKind); |
| 3051 | llvm::FoldingSetNodeID AEId, DAEId; |
| 3052 | AE->Profile(AEId, S.getASTContext(), /*Canonical=*/true); |
| 3053 | DefAllocator->Profile(DAEId, S.getASTContext(), /*Canonical=*/true); |
| 3054 | if (AEId == DAEId) { |
| 3055 | AllocatorKindRes = AllocatorKind; |
| 3056 | break; |
| 3057 | } |
| 3058 | } |
| 3059 | return AllocatorKindRes; |
| 3060 | } |
| 3061 | |
| 3062 | static bool checkPreviousOMPAllocateAttribute( |
| 3063 | Sema &S, DSAStackTy *Stack, Expr *RefExpr, VarDecl *VD, |
| 3064 | OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind, Expr *Allocator) { |
| 3065 | if (!VD->hasAttr<OMPAllocateDeclAttr>()) |
| 3066 | return false; |
| 3067 | const auto *A = VD->getAttr<OMPAllocateDeclAttr>(); |
| 3068 | Expr *PrevAllocator = A->getAllocator(); |
| 3069 | OMPAllocateDeclAttr::AllocatorTypeTy PrevAllocatorKind = |
| 3070 | getAllocatorKind(S, Stack, PrevAllocator); |
| 3071 | bool AllocatorsMatch = AllocatorKind == PrevAllocatorKind; |
| 3072 | if (AllocatorsMatch && |
| 3073 | AllocatorKind == OMPAllocateDeclAttr::OMPUserDefinedMemAlloc && |
| 3074 | Allocator && PrevAllocator) { |
| 3075 | const Expr *AE = Allocator->IgnoreParenImpCasts(); |
| 3076 | const Expr *PAE = PrevAllocator->IgnoreParenImpCasts(); |
| 3077 | llvm::FoldingSetNodeID AEId, PAEId; |
| 3078 | AE->Profile(AEId, S.Context, /*Canonical=*/true); |
| 3079 | PAE->Profile(PAEId, S.Context, /*Canonical=*/true); |
| 3080 | AllocatorsMatch = AEId == PAEId; |
| 3081 | } |
| 3082 | if (!AllocatorsMatch) { |
| 3083 | SmallString<256> AllocatorBuffer; |
| 3084 | llvm::raw_svector_ostream AllocatorStream(AllocatorBuffer); |
| 3085 | if (Allocator) |
| 3086 | Allocator->printPretty(AllocatorStream, nullptr, S.getPrintingPolicy()); |
| 3087 | SmallString<256> PrevAllocatorBuffer; |
| 3088 | llvm::raw_svector_ostream PrevAllocatorStream(PrevAllocatorBuffer); |
| 3089 | if (PrevAllocator) |
| 3090 | PrevAllocator->printPretty(PrevAllocatorStream, nullptr, |
| 3091 | S.getPrintingPolicy()); |
| 3092 | |
| 3093 | SourceLocation AllocatorLoc = |
| 3094 | Allocator ? Allocator->getExprLoc() : RefExpr->getExprLoc(); |
| 3095 | SourceRange AllocatorRange = |
| 3096 | Allocator ? Allocator->getSourceRange() : RefExpr->getSourceRange(); |
| 3097 | SourceLocation PrevAllocatorLoc = |
| 3098 | PrevAllocator ? PrevAllocator->getExprLoc() : A->getLocation(); |
| 3099 | SourceRange PrevAllocatorRange = |
| 3100 | PrevAllocator ? PrevAllocator->getSourceRange() : A->getRange(); |
| 3101 | S.Diag(AllocatorLoc, diag::warn_omp_used_different_allocator) |
| 3102 | << (Allocator ? 1 : 0) << AllocatorStream.str() |
| 3103 | << (PrevAllocator ? 1 : 0) << PrevAllocatorStream.str() |
| 3104 | << AllocatorRange; |
| 3105 | S.Diag(PrevAllocatorLoc, diag::note_omp_previous_allocator) |
| 3106 | << PrevAllocatorRange; |
| 3107 | return true; |
| 3108 | } |
| 3109 | return false; |
| 3110 | } |
| 3111 | |
| 3112 | static void |
| 3113 | applyOMPAllocateAttribute(Sema &S, VarDecl *VD, |
| 3114 | OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind, |
| 3115 | Expr *Allocator, SourceRange SR) { |
| 3116 | if (VD->hasAttr<OMPAllocateDeclAttr>()) |
| 3117 | return; |
| 3118 | if (Allocator && |
| 3119 | (Allocator->isTypeDependent() || Allocator->isValueDependent() || |
| 3120 | Allocator->isInstantiationDependent() || |
| 3121 | Allocator->containsUnexpandedParameterPack())) |
| 3122 | return; |
| 3123 | auto *A = OMPAllocateDeclAttr::CreateImplicit(S.Context, AllocatorKind, |
| 3124 | Allocator, SR); |
| 3125 | VD->addAttr(A); |
| 3126 | if (ASTMutationListener *ML = S.Context.getASTMutationListener()) |
| 3127 | ML->DeclarationMarkedOpenMPAllocate(VD, A); |
| 3128 | } |
| 3129 | |
| 3130 | Sema::DeclGroupPtrTy Sema::ActOnOpenMPAllocateDirective( |
| 3131 | SourceLocation Loc, ArrayRef<Expr *> VarList, |
| 3132 | ArrayRef<OMPClause *> Clauses, DeclContext *Owner) { |
| 3133 | assert(Clauses.size() <= 1 && "Expected at most one clause.")((void)0); |
| 3134 | Expr *Allocator = nullptr; |
| 3135 | if (Clauses.empty()) { |
| 3136 | // OpenMP 5.0, 2.11.3 allocate Directive, Restrictions. |
| 3137 | // allocate directives that appear in a target region must specify an |
| 3138 | // allocator clause unless a requires directive with the dynamic_allocators |
| 3139 | // clause is present in the same compilation unit. |
| 3140 | if (LangOpts.OpenMPIsDevice && |
| 3141 | !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>()) |
| 3142 | targetDiag(Loc, diag::err_expected_allocator_clause); |
| 3143 | } else { |
| 3144 | Allocator = cast<OMPAllocatorClause>(Clauses.back())->getAllocator(); |
| 3145 | } |
| 3146 | OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind = |
| 3147 | getAllocatorKind(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), Allocator); |
| 3148 | SmallVector<Expr *, 8> Vars; |
| 3149 | for (Expr *RefExpr : VarList) { |
| 3150 | auto *DE = cast<DeclRefExpr>(RefExpr); |
| 3151 | auto *VD = cast<VarDecl>(DE->getDecl()); |
| 3152 | |
| 3153 | // Check if this is a TLS variable or global register. |
| 3154 | if (VD->getTLSKind() != VarDecl::TLS_None || |
| 3155 | VD->hasAttr<OMPThreadPrivateDeclAttr>() || |
| 3156 | (VD->getStorageClass() == SC_Register && VD->hasAttr<AsmLabelAttr>() && |
| 3157 | !VD->isLocalVarDecl())) |
| 3158 | continue; |
| 3159 | |
| 3160 | // If the used several times in the allocate directive, the same allocator |
| 3161 | // must be used. |
| 3162 | if (checkPreviousOMPAllocateAttribute(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), RefExpr, VD, |
| 3163 | AllocatorKind, Allocator)) |
| 3164 | continue; |
| 3165 | |
| 3166 | // OpenMP, 2.11.3 allocate Directive, Restrictions, C / C++ |
| 3167 | // If a list item has a static storage type, the allocator expression in the |
| 3168 | // allocator clause must be a constant expression that evaluates to one of |
| 3169 | // the predefined memory allocator values. |
| 3170 | if (Allocator && VD->hasGlobalStorage()) { |
| 3171 | if (AllocatorKind == OMPAllocateDeclAttr::OMPUserDefinedMemAlloc) { |
| 3172 | Diag(Allocator->getExprLoc(), |
| 3173 | diag::err_omp_expected_predefined_allocator) |
| 3174 | << Allocator->getSourceRange(); |
| 3175 | bool IsDecl = VD->isThisDeclarationADefinition(Context) == |
| 3176 | VarDecl::DeclarationOnly; |
| 3177 | Diag(VD->getLocation(), |
| 3178 | IsDecl ? diag::note_previous_decl : diag::note_defined_here) |
| 3179 | << VD; |
| 3180 | continue; |
| 3181 | } |
| 3182 | } |
| 3183 | |
| 3184 | Vars.push_back(RefExpr); |
| 3185 | applyOMPAllocateAttribute(*this, VD, AllocatorKind, Allocator, |
| 3186 | DE->getSourceRange()); |
| 3187 | } |
| 3188 | if (Vars.empty()) |
| 3189 | return nullptr; |
| 3190 | if (!Owner) |
| 3191 | Owner = getCurLexicalContext(); |
| 3192 | auto *D = OMPAllocateDecl::Create(Context, Owner, Loc, Vars, Clauses); |
| 3193 | D->setAccess(AS_public); |
| 3194 | Owner->addDecl(D); |
| 3195 | return DeclGroupPtrTy::make(DeclGroupRef(D)); |
| 3196 | } |
| 3197 | |
| 3198 | Sema::DeclGroupPtrTy |
| 3199 | Sema::ActOnOpenMPRequiresDirective(SourceLocation Loc, |
| 3200 | ArrayRef<OMPClause *> ClauseList) { |
| 3201 | OMPRequiresDecl *D = nullptr; |
| 3202 | if (!CurContext->isFileContext()) { |
| 3203 | Diag(Loc, diag::err_omp_invalid_scope) << "requires"; |
| 3204 | } else { |
| 3205 | D = CheckOMPRequiresDecl(Loc, ClauseList); |
| 3206 | if (D) { |
| 3207 | CurContext->addDecl(D); |
| 3208 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->addRequiresDecl(D); |
| 3209 | } |
| 3210 | } |
| 3211 | return DeclGroupPtrTy::make(DeclGroupRef(D)); |
| 3212 | } |
| 3213 | |
| 3214 | void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc, |
| 3215 | OpenMPDirectiveKind DKind, |
| 3216 | ArrayRef<StringRef> Assumptions, |
| 3217 | bool SkippedClauses) { |
| 3218 | if (!SkippedClauses && Assumptions.empty()) |
| 3219 | Diag(Loc, diag::err_omp_no_clause_for_directive) |
| 3220 | << llvm::omp::getAllAssumeClauseOptions() |
| 3221 | << llvm::omp::getOpenMPDirectiveName(DKind); |
| 3222 | |
| 3223 | auto *AA = AssumptionAttr::Create(Context, llvm::join(Assumptions, ","), Loc); |
| 3224 | if (DKind == llvm::omp::Directive::OMPD_begin_assumes) { |
| 3225 | OMPAssumeScoped.push_back(AA); |
| 3226 | return; |
| 3227 | } |
| 3228 | |
| 3229 | // Global assumes without assumption clauses are ignored. |
| 3230 | if (Assumptions.empty()) |
| 3231 | return; |
| 3232 | |
| 3233 | assert(DKind == llvm::omp::Directive::OMPD_assumes &&((void)0) |
| 3234 | "Unexpected omp assumption directive!")((void)0); |
| 3235 | OMPAssumeGlobal.push_back(AA); |
| 3236 | |
| 3237 | // The OMPAssumeGlobal scope above will take care of new declarations but |
| 3238 | // we also want to apply the assumption to existing ones, e.g., to |
| 3239 | // declarations in included headers. To this end, we traverse all existing |
| 3240 | // declaration contexts and annotate function declarations here. |
| 3241 | SmallVector<DeclContext *, 8> DeclContexts; |
| 3242 | auto *Ctx = CurContext; |
| 3243 | while (Ctx->getLexicalParent()) |
| 3244 | Ctx = Ctx->getLexicalParent(); |
| 3245 | DeclContexts.push_back(Ctx); |
| 3246 | while (!DeclContexts.empty()) { |
| 3247 | DeclContext *DC = DeclContexts.pop_back_val(); |
| 3248 | for (auto *SubDC : DC->decls()) { |
| 3249 | if (SubDC->isInvalidDecl()) |
| 3250 | continue; |
| 3251 | if (auto *CTD = dyn_cast<ClassTemplateDecl>(SubDC)) { |
| 3252 | DeclContexts.push_back(CTD->getTemplatedDecl()); |
| 3253 | for (auto *S : CTD->specializations()) |
| 3254 | DeclContexts.push_back(S); |
| 3255 | continue; |
| 3256 | } |
| 3257 | if (auto *DC = dyn_cast<DeclContext>(SubDC)) |
| 3258 | DeclContexts.push_back(DC); |
| 3259 | if (auto *F = dyn_cast<FunctionDecl>(SubDC)) { |
| 3260 | F->addAttr(AA); |
| 3261 | continue; |
| 3262 | } |
| 3263 | } |
| 3264 | } |
| 3265 | } |
| 3266 | |
| 3267 | void Sema::ActOnOpenMPEndAssumesDirective() { |
| 3268 | assert(isInOpenMPAssumeScope() && "Not in OpenMP assumes scope!")((void)0); |
| 3269 | OMPAssumeScoped.pop_back(); |
| 3270 | } |
| 3271 | |
| 3272 | OMPRequiresDecl *Sema::CheckOMPRequiresDecl(SourceLocation Loc, |
| 3273 | ArrayRef<OMPClause *> ClauseList) { |
| 3274 | /// For target specific clauses, the requires directive cannot be |
| 3275 | /// specified after the handling of any of the target regions in the |
| 3276 | /// current compilation unit. |
| 3277 | ArrayRef<SourceLocation> TargetLocations = |
| 3278 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getEncounteredTargetLocs(); |
| 3279 | SourceLocation AtomicLoc = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getAtomicDirectiveLoc(); |
| 3280 | if (!TargetLocations.empty() || !AtomicLoc.isInvalid()) { |
| 3281 | for (const OMPClause *CNew : ClauseList) { |
| 3282 | // Check if any of the requires clauses affect target regions. |
| 3283 | if (isa<OMPUnifiedSharedMemoryClause>(CNew) || |
| 3284 | isa<OMPUnifiedAddressClause>(CNew) || |
| 3285 | isa<OMPReverseOffloadClause>(CNew) || |
| 3286 | isa<OMPDynamicAllocatorsClause>(CNew)) { |
| 3287 | Diag(Loc, diag::err_omp_directive_before_requires) |
| 3288 | << "target" << getOpenMPClauseName(CNew->getClauseKind()); |
| 3289 | for (SourceLocation TargetLoc : TargetLocations) { |
| 3290 | Diag(TargetLoc, diag::note_omp_requires_encountered_directive) |
| 3291 | << "target"; |
| 3292 | } |
| 3293 | } else if (!AtomicLoc.isInvalid() && |
| 3294 | isa<OMPAtomicDefaultMemOrderClause>(CNew)) { |
| 3295 | Diag(Loc, diag::err_omp_directive_before_requires) |
| 3296 | << "atomic" << getOpenMPClauseName(CNew->getClauseKind()); |
| 3297 | Diag(AtomicLoc, diag::note_omp_requires_encountered_directive) |
| 3298 | << "atomic"; |
| 3299 | } |
| 3300 | } |
| 3301 | } |
| 3302 | |
| 3303 | if (!DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->hasDuplicateRequiresClause(ClauseList)) |
| 3304 | return OMPRequiresDecl::Create(Context, getCurLexicalContext(), Loc, |
| 3305 | ClauseList); |
| 3306 | return nullptr; |
| 3307 | } |
| 3308 | |
| 3309 | static void reportOriginalDsa(Sema &SemaRef, const DSAStackTy *Stack, |
| 3310 | const ValueDecl *D, |
| 3311 | const DSAStackTy::DSAVarData &DVar, |
| 3312 | bool IsLoopIterVar) { |
| 3313 | if (DVar.RefExpr) { |
| 3314 | SemaRef.Diag(DVar.RefExpr->getExprLoc(), diag::note_omp_explicit_dsa) |
| 3315 | << getOpenMPClauseName(DVar.CKind); |
| 3316 | return; |
| 3317 | } |
| 3318 | enum { |
| 3319 | PDSA_StaticMemberShared, |
| 3320 | PDSA_StaticLocalVarShared, |
| 3321 | PDSA_LoopIterVarPrivate, |
| 3322 | PDSA_LoopIterVarLinear, |
| 3323 | PDSA_LoopIterVarLastprivate, |
| 3324 | PDSA_ConstVarShared, |
| 3325 | PDSA_GlobalVarShared, |
| 3326 | PDSA_TaskVarFirstprivate, |
| 3327 | PDSA_LocalVarPrivate, |
| 3328 | PDSA_Implicit |
| 3329 | } Reason = PDSA_Implicit; |
| 3330 | bool ReportHint = false; |
| 3331 | auto ReportLoc = D->getLocation(); |
| 3332 | auto *VD = dyn_cast<VarDecl>(D); |
| 3333 | if (IsLoopIterVar) { |
| 3334 | if (DVar.CKind == OMPC_private) |
| 3335 | Reason = PDSA_LoopIterVarPrivate; |
| 3336 | else if (DVar.CKind == OMPC_lastprivate) |
| 3337 | Reason = PDSA_LoopIterVarLastprivate; |
| 3338 | else |
| 3339 | Reason = PDSA_LoopIterVarLinear; |
| 3340 | } else if (isOpenMPTaskingDirective(DVar.DKind) && |
| 3341 | DVar.CKind == OMPC_firstprivate) { |
| 3342 | Reason = PDSA_TaskVarFirstprivate; |
| 3343 | ReportLoc = DVar.ImplicitDSALoc; |
| 3344 | } else if (VD && VD->isStaticLocal()) |
| 3345 | Reason = PDSA_StaticLocalVarShared; |
| 3346 | else if (VD && VD->isStaticDataMember()) |
| 3347 | Reason = PDSA_StaticMemberShared; |
| 3348 | else if (VD && VD->isFileVarDecl()) |
| 3349 | Reason = PDSA_GlobalVarShared; |
| 3350 | else if (D->getType().isConstant(SemaRef.getASTContext())) |
| 3351 | Reason = PDSA_ConstVarShared; |
| 3352 | else if (VD && VD->isLocalVarDecl() && DVar.CKind == OMPC_private) { |
| 3353 | ReportHint = true; |
| 3354 | Reason = PDSA_LocalVarPrivate; |
| 3355 | } |
| 3356 | if (Reason != PDSA_Implicit) { |
| 3357 | SemaRef.Diag(ReportLoc, diag::note_omp_predetermined_dsa) |
| 3358 | << Reason << ReportHint |
| 3359 | << getOpenMPDirectiveName(Stack->getCurrentDirective()); |
| 3360 | } else if (DVar.ImplicitDSALoc.isValid()) { |
| 3361 | SemaRef.Diag(DVar.ImplicitDSALoc, diag::note_omp_implicit_dsa) |
| 3362 | << getOpenMPClauseName(DVar.CKind); |
| 3363 | } |
| 3364 | } |
| 3365 | |
| 3366 | static OpenMPMapClauseKind |
| 3367 | getMapClauseKindFromModifier(OpenMPDefaultmapClauseModifier M, |
| 3368 | bool IsAggregateOrDeclareTarget) { |
| 3369 | OpenMPMapClauseKind Kind = OMPC_MAP_unknown; |
| 3370 | switch (M) { |
| 3371 | case OMPC_DEFAULTMAP_MODIFIER_alloc: |
| 3372 | Kind = OMPC_MAP_alloc; |
| 3373 | break; |
| 3374 | case OMPC_DEFAULTMAP_MODIFIER_to: |
| 3375 | Kind = OMPC_MAP_to; |
| 3376 | break; |
| 3377 | case OMPC_DEFAULTMAP_MODIFIER_from: |
| 3378 | Kind = OMPC_MAP_from; |
| 3379 | break; |
| 3380 | case OMPC_DEFAULTMAP_MODIFIER_tofrom: |
| 3381 | Kind = OMPC_MAP_tofrom; |
| 3382 | break; |
| 3383 | case OMPC_DEFAULTMAP_MODIFIER_present: |
| 3384 | // OpenMP 5.1 [2.21.7.3] defaultmap clause, Description] |
| 3385 | // If implicit-behavior is present, each variable referenced in the |
| 3386 | // construct in the category specified by variable-category is treated as if |
| 3387 | // it had been listed in a map clause with the map-type of alloc and |
| 3388 | // map-type-modifier of present. |
| 3389 | Kind = OMPC_MAP_alloc; |
| 3390 | break; |
| 3391 | case OMPC_DEFAULTMAP_MODIFIER_firstprivate: |
| 3392 | case OMPC_DEFAULTMAP_MODIFIER_last: |
| 3393 | llvm_unreachable("Unexpected defaultmap implicit behavior")__builtin_unreachable(); |
| 3394 | case OMPC_DEFAULTMAP_MODIFIER_none: |
| 3395 | case OMPC_DEFAULTMAP_MODIFIER_default: |
| 3396 | case OMPC_DEFAULTMAP_MODIFIER_unknown: |
| 3397 | // IsAggregateOrDeclareTarget could be true if: |
| 3398 | // 1. the implicit behavior for aggregate is tofrom |
| 3399 | // 2. it's a declare target link |
| 3400 | if (IsAggregateOrDeclareTarget) { |
| 3401 | Kind = OMPC_MAP_tofrom; |
| 3402 | break; |
| 3403 | } |
| 3404 | llvm_unreachable("Unexpected defaultmap implicit behavior")__builtin_unreachable(); |
| 3405 | } |
| 3406 | assert(Kind != OMPC_MAP_unknown && "Expect map kind to be known")((void)0); |
| 3407 | return Kind; |
| 3408 | } |
| 3409 | |
| 3410 | namespace { |
| 3411 | class DSAAttrChecker final : public StmtVisitor<DSAAttrChecker, void> { |
| 3412 | DSAStackTy *Stack; |
| 3413 | Sema &SemaRef; |
| 3414 | bool ErrorFound = false; |
| 3415 | bool TryCaptureCXXThisMembers = false; |
| 3416 | CapturedStmt *CS = nullptr; |
| 3417 | const static unsigned DefaultmapKindNum = OMPC_DEFAULTMAP_pointer + 1; |
| 3418 | llvm::SmallVector<Expr *, 4> ImplicitFirstprivate; |
| 3419 | llvm::SmallVector<Expr *, 4> ImplicitMap[DefaultmapKindNum][OMPC_MAP_delete]; |
| 3420 | llvm::SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers> |
| 3421 | ImplicitMapModifier[DefaultmapKindNum]; |
| 3422 | Sema::VarsWithInheritedDSAType VarsWithInheritedDSA; |
| 3423 | llvm::SmallDenseSet<const ValueDecl *, 4> ImplicitDeclarations; |
| 3424 | |
| 3425 | void VisitSubCaptures(OMPExecutableDirective *S) { |
| 3426 | // Check implicitly captured variables. |
| 3427 | if (!S->hasAssociatedStmt() || !S->getAssociatedStmt()) |
| 3428 | return; |
| 3429 | if (S->getDirectiveKind() == OMPD_atomic || |
| 3430 | S->getDirectiveKind() == OMPD_critical || |
| 3431 | S->getDirectiveKind() == OMPD_section || |
| 3432 | S->getDirectiveKind() == OMPD_master || |
| 3433 | S->getDirectiveKind() == OMPD_masked || |
| 3434 | isOpenMPLoopTransformationDirective(S->getDirectiveKind())) { |
| 3435 | Visit(S->getAssociatedStmt()); |
| 3436 | return; |
| 3437 | } |
| 3438 | visitSubCaptures(S->getInnermostCapturedStmt()); |
| 3439 | // Try to capture inner this->member references to generate correct mappings |
| 3440 | // and diagnostics. |
| 3441 | if (TryCaptureCXXThisMembers || |
| 3442 | (isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()) && |
| 3443 | llvm::any_of(S->getInnermostCapturedStmt()->captures(), |
| 3444 | [](const CapturedStmt::Capture &C) { |
| 3445 | return C.capturesThis(); |
| 3446 | }))) { |
| 3447 | bool SavedTryCaptureCXXThisMembers = TryCaptureCXXThisMembers; |
| 3448 | TryCaptureCXXThisMembers = true; |
| 3449 | Visit(S->getInnermostCapturedStmt()->getCapturedStmt()); |
| 3450 | TryCaptureCXXThisMembers = SavedTryCaptureCXXThisMembers; |
| 3451 | } |
| 3452 | // In tasks firstprivates are not captured anymore, need to analyze them |
| 3453 | // explicitly. |
| 3454 | if (isOpenMPTaskingDirective(S->getDirectiveKind()) && |
| 3455 | !isOpenMPTaskLoopDirective(S->getDirectiveKind())) { |
| 3456 | for (OMPClause *C : S->clauses()) |
| 3457 | if (auto *FC = dyn_cast<OMPFirstprivateClause>(C)) { |
| 3458 | for (Expr *Ref : FC->varlists()) |
| 3459 | Visit(Ref); |
| 3460 | } |
| 3461 | } |
| 3462 | } |
| 3463 | |
| 3464 | public: |
| 3465 | void VisitDeclRefExpr(DeclRefExpr *E) { |
| 3466 | if (TryCaptureCXXThisMembers || E->isTypeDependent() || |
| 3467 | E->isValueDependent() || E->containsUnexpandedParameterPack() || |
| 3468 | E->isInstantiationDependent()) |
| 3469 | return; |
| 3470 | if (auto *VD = dyn_cast<VarDecl>(E->getDecl())) { |
| 3471 | // Check the datasharing rules for the expressions in the clauses. |
| 3472 | if (!CS) { |
| 3473 | if (auto *CED = dyn_cast<OMPCapturedExprDecl>(VD)) |
| 3474 | if (!CED->hasAttr<OMPCaptureNoInitAttr>()) { |
| 3475 | Visit(CED->getInit()); |
| 3476 | return; |
| 3477 | } |
| 3478 | } else if (VD->isImplicit() || isa<OMPCapturedExprDecl>(VD)) |
| 3479 | // Do not analyze internal variables and do not enclose them into |
| 3480 | // implicit clauses. |
| 3481 | return; |
| 3482 | VD = VD->getCanonicalDecl(); |
| 3483 | // Skip internally declared variables. |
| 3484 | if (VD->hasLocalStorage() && CS && !CS->capturesVariable(VD) && |
| 3485 | !Stack->isImplicitTaskFirstprivate(VD)) |
| 3486 | return; |
| 3487 | // Skip allocators in uses_allocators clauses. |
| 3488 | if (Stack->isUsesAllocatorsDecl(VD).hasValue()) |
| 3489 | return; |
| 3490 | |
| 3491 | DSAStackTy::DSAVarData DVar = Stack->getTopDSA(VD, /*FromParent=*/false); |
| 3492 | // Check if the variable has explicit DSA set and stop analysis if it so. |
| 3493 | if (DVar.RefExpr || !ImplicitDeclarations.insert(VD).second) |
| 3494 | return; |
| 3495 | |
| 3496 | // Skip internally declared static variables. |
| 3497 | llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = |
| 3498 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD); |
| 3499 | if (VD->hasGlobalStorage() && CS && !CS->capturesVariable(VD) && |
| 3500 | (Stack->hasRequiresDeclWithClause<OMPUnifiedSharedMemoryClause>() || |
| 3501 | !Res || *Res != OMPDeclareTargetDeclAttr::MT_Link) && |
| 3502 | !Stack->isImplicitTaskFirstprivate(VD)) |
| 3503 | return; |
| 3504 | |
| 3505 | SourceLocation ELoc = E->getExprLoc(); |
| 3506 | OpenMPDirectiveKind DKind = Stack->getCurrentDirective(); |
| 3507 | // The default(none) clause requires that each variable that is referenced |
| 3508 | // in the construct, and does not have a predetermined data-sharing |
| 3509 | // attribute, must have its data-sharing attribute explicitly determined |
| 3510 | // by being listed in a data-sharing attribute clause. |
| 3511 | if (DVar.CKind == OMPC_unknown && |
| 3512 | (Stack->getDefaultDSA() == DSA_none || |
| 3513 | Stack->getDefaultDSA() == DSA_firstprivate) && |
| 3514 | isImplicitOrExplicitTaskingRegion(DKind) && |
| 3515 | VarsWithInheritedDSA.count(VD) == 0) { |
| 3516 | bool InheritedDSA = Stack->getDefaultDSA() == DSA_none; |
| 3517 | if (!InheritedDSA && Stack->getDefaultDSA() == DSA_firstprivate) { |
| 3518 | DSAStackTy::DSAVarData DVar = |
| 3519 | Stack->getImplicitDSA(VD, /*FromParent=*/false); |
| 3520 | InheritedDSA = DVar.CKind == OMPC_unknown; |
| 3521 | } |
| 3522 | if (InheritedDSA) |
| 3523 | VarsWithInheritedDSA[VD] = E; |
| 3524 | return; |
| 3525 | } |
| 3526 | |
| 3527 | // OpenMP 5.0 [2.19.7.2, defaultmap clause, Description] |
| 3528 | // If implicit-behavior is none, each variable referenced in the |
| 3529 | // construct that does not have a predetermined data-sharing attribute |
| 3530 | // and does not appear in a to or link clause on a declare target |
| 3531 | // directive must be listed in a data-mapping attribute clause, a |
| 3532 | // data-haring attribute clause (including a data-sharing attribute |
| 3533 | // clause on a combined construct where target. is one of the |
| 3534 | // constituent constructs), or an is_device_ptr clause. |
| 3535 | OpenMPDefaultmapClauseKind ClauseKind = |
| 3536 | getVariableCategoryFromDecl(SemaRef.getLangOpts(), VD); |
| 3537 | if (SemaRef.getLangOpts().OpenMP >= 50) { |
| 3538 | bool IsModifierNone = Stack->getDefaultmapModifier(ClauseKind) == |
| 3539 | OMPC_DEFAULTMAP_MODIFIER_none; |
| 3540 | if (DVar.CKind == OMPC_unknown && IsModifierNone && |
| 3541 | VarsWithInheritedDSA.count(VD) == 0 && !Res) { |
| 3542 | // Only check for data-mapping attribute and is_device_ptr here |
| 3543 | // since we have already make sure that the declaration does not |
| 3544 | // have a data-sharing attribute above |
| 3545 | if (!Stack->checkMappableExprComponentListsForDecl( |
| 3546 | VD, /*CurrentRegionOnly=*/true, |
| 3547 | [VD](OMPClauseMappableExprCommon::MappableExprComponentListRef |
| 3548 | MapExprComponents, |
| 3549 | OpenMPClauseKind) { |
| 3550 | auto MI = MapExprComponents.rbegin(); |
| 3551 | auto ME = MapExprComponents.rend(); |
| 3552 | return MI != ME && MI->getAssociatedDeclaration() == VD; |
| 3553 | })) { |
| 3554 | VarsWithInheritedDSA[VD] = E; |
| 3555 | return; |
| 3556 | } |
| 3557 | } |
| 3558 | } |
| 3559 | if (SemaRef.getLangOpts().OpenMP > 50) { |
| 3560 | bool IsModifierPresent = Stack->getDefaultmapModifier(ClauseKind) == |
| 3561 | OMPC_DEFAULTMAP_MODIFIER_present; |
| 3562 | if (IsModifierPresent) { |
| 3563 | if (llvm::find(ImplicitMapModifier[ClauseKind], |
| 3564 | OMPC_MAP_MODIFIER_present) == |
| 3565 | std::end(ImplicitMapModifier[ClauseKind])) { |
| 3566 | ImplicitMapModifier[ClauseKind].push_back( |
| 3567 | OMPC_MAP_MODIFIER_present); |
| 3568 | } |
| 3569 | } |
| 3570 | } |
| 3571 | |
| 3572 | if (isOpenMPTargetExecutionDirective(DKind) && |
| 3573 | !Stack->isLoopControlVariable(VD).first) { |
| 3574 | if (!Stack->checkMappableExprComponentListsForDecl( |
| 3575 | VD, /*CurrentRegionOnly=*/true, |
| 3576 | [this](OMPClauseMappableExprCommon::MappableExprComponentListRef |
| 3577 | StackComponents, |
| 3578 | OpenMPClauseKind) { |
| 3579 | if (SemaRef.LangOpts.OpenMP >= 50) |
| 3580 | return !StackComponents.empty(); |
| 3581 | // Variable is used if it has been marked as an array, array |
| 3582 | // section, array shaping or the variable iself. |
| 3583 | return StackComponents.size() == 1 || |
| 3584 | std::all_of( |
| 3585 | std::next(StackComponents.rbegin()), |
| 3586 | StackComponents.rend(), |
| 3587 | [](const OMPClauseMappableExprCommon:: |
| 3588 | MappableComponent &MC) { |
| 3589 | return MC.getAssociatedDeclaration() == |
| 3590 | nullptr && |
| 3591 | (isa<OMPArraySectionExpr>( |
| 3592 | MC.getAssociatedExpression()) || |
| 3593 | isa<OMPArrayShapingExpr>( |
| 3594 | MC.getAssociatedExpression()) || |
| 3595 | isa<ArraySubscriptExpr>( |
| 3596 | MC.getAssociatedExpression())); |
| 3597 | }); |
| 3598 | })) { |
| 3599 | bool IsFirstprivate = false; |
| 3600 | // By default lambdas are captured as firstprivates. |
| 3601 | if (const auto *RD = |
| 3602 | VD->getType().getNonReferenceType()->getAsCXXRecordDecl()) |
| 3603 | IsFirstprivate = RD->isLambda(); |
| 3604 | IsFirstprivate = |
| 3605 | IsFirstprivate || (Stack->mustBeFirstprivate(ClauseKind) && !Res); |
| 3606 | if (IsFirstprivate) { |
| 3607 | ImplicitFirstprivate.emplace_back(E); |
| 3608 | } else { |
| 3609 | OpenMPDefaultmapClauseModifier M = |
| 3610 | Stack->getDefaultmapModifier(ClauseKind); |
| 3611 | OpenMPMapClauseKind Kind = getMapClauseKindFromModifier( |
| 3612 | M, ClauseKind == OMPC_DEFAULTMAP_aggregate || Res); |
| 3613 | ImplicitMap[ClauseKind][Kind].emplace_back(E); |
| 3614 | } |
| 3615 | return; |
| 3616 | } |
| 3617 | } |
| 3618 | |
| 3619 | // OpenMP [2.9.3.6, Restrictions, p.2] |
| 3620 | // A list item that appears in a reduction clause of the innermost |
| 3621 | // enclosing worksharing or parallel construct may not be accessed in an |
| 3622 | // explicit task. |
| 3623 | DVar = Stack->hasInnermostDSA( |
| 3624 | VD, |
| 3625 | [](OpenMPClauseKind C, bool AppliedToPointee) { |
| 3626 | return C == OMPC_reduction && !AppliedToPointee; |
| 3627 | }, |
| 3628 | [](OpenMPDirectiveKind K) { |
| 3629 | return isOpenMPParallelDirective(K) || |
| 3630 | isOpenMPWorksharingDirective(K) || isOpenMPTeamsDirective(K); |
| 3631 | }, |
| 3632 | /*FromParent=*/true); |
| 3633 | if (isOpenMPTaskingDirective(DKind) && DVar.CKind == OMPC_reduction) { |
| 3634 | ErrorFound = true; |
| 3635 | SemaRef.Diag(ELoc, diag::err_omp_reduction_in_task); |
| 3636 | reportOriginalDsa(SemaRef, Stack, VD, DVar); |
| 3637 | return; |
| 3638 | } |
| 3639 | |
| 3640 | // Define implicit data-sharing attributes for task. |
| 3641 | DVar = Stack->getImplicitDSA(VD, /*FromParent=*/false); |
| 3642 | if (((isOpenMPTaskingDirective(DKind) && DVar.CKind != OMPC_shared) || |
| 3643 | (Stack->getDefaultDSA() == DSA_firstprivate && |
| 3644 | DVar.CKind == OMPC_firstprivate && !DVar.RefExpr)) && |
| 3645 | !Stack->isLoopControlVariable(VD).first) { |
| 3646 | ImplicitFirstprivate.push_back(E); |
| 3647 | return; |
| 3648 | } |
| 3649 | |
| 3650 | // Store implicitly used globals with declare target link for parent |
| 3651 | // target. |
| 3652 | if (!isOpenMPTargetExecutionDirective(DKind) && Res && |
| 3653 | *Res == OMPDeclareTargetDeclAttr::MT_Link) { |
| 3654 | Stack->addToParentTargetRegionLinkGlobals(E); |
| 3655 | return; |
| 3656 | } |
| 3657 | } |
| 3658 | } |
| 3659 | void VisitMemberExpr(MemberExpr *E) { |
| 3660 | if (E->isTypeDependent() || E->isValueDependent() || |
| 3661 | E->containsUnexpandedParameterPack() || E->isInstantiationDependent()) |
| 3662 | return; |
| 3663 | auto *FD = dyn_cast<FieldDecl>(E->getMemberDecl()); |
| 3664 | OpenMPDirectiveKind DKind = Stack->getCurrentDirective(); |
| 3665 | if (auto *TE = dyn_cast<CXXThisExpr>(E->getBase()->IgnoreParenCasts())) { |
| 3666 | if (!FD) |
| 3667 | return; |
| 3668 | DSAStackTy::DSAVarData DVar = Stack->getTopDSA(FD, /*FromParent=*/false); |
| 3669 | // Check if the variable has explicit DSA set and stop analysis if it |
| 3670 | // so. |
| 3671 | if (DVar.RefExpr || !ImplicitDeclarations.insert(FD).second) |
| 3672 | return; |
| 3673 | |
| 3674 | if (isOpenMPTargetExecutionDirective(DKind) && |
| 3675 | !Stack->isLoopControlVariable(FD).first && |
| 3676 | !Stack->checkMappableExprComponentListsForDecl( |
| 3677 | FD, /*CurrentRegionOnly=*/true, |
| 3678 | [](OMPClauseMappableExprCommon::MappableExprComponentListRef |
| 3679 | StackComponents, |
| 3680 | OpenMPClauseKind) { |
| 3681 | return isa<CXXThisExpr>( |
| 3682 | cast<MemberExpr>( |
| 3683 | StackComponents.back().getAssociatedExpression()) |
| 3684 | ->getBase() |
| 3685 | ->IgnoreParens()); |
| 3686 | })) { |
| 3687 | // OpenMP 4.5 [2.15.5.1, map Clause, Restrictions, C/C++, p.3] |
| 3688 | // A bit-field cannot appear in a map clause. |
| 3689 | // |
| 3690 | if (FD->isBitField()) |
| 3691 | return; |
| 3692 | |
| 3693 | // Check to see if the member expression is referencing a class that |
| 3694 | // has already been explicitly mapped |
| 3695 | if (Stack->isClassPreviouslyMapped(TE->getType())) |
| 3696 | return; |
| 3697 | |
| 3698 | OpenMPDefaultmapClauseModifier Modifier = |
| 3699 | Stack->getDefaultmapModifier(OMPC_DEFAULTMAP_aggregate); |
| 3700 | OpenMPDefaultmapClauseKind ClauseKind = |
| 3701 | getVariableCategoryFromDecl(SemaRef.getLangOpts(), FD); |
| 3702 | OpenMPMapClauseKind Kind = getMapClauseKindFromModifier( |
| 3703 | Modifier, /*IsAggregateOrDeclareTarget*/ true); |
| 3704 | ImplicitMap[ClauseKind][Kind].emplace_back(E); |
| 3705 | return; |
| 3706 | } |
| 3707 | |
| 3708 | SourceLocation ELoc = E->getExprLoc(); |
| 3709 | // OpenMP [2.9.3.6, Restrictions, p.2] |
| 3710 | // A list item that appears in a reduction clause of the innermost |
| 3711 | // enclosing worksharing or parallel construct may not be accessed in |
| 3712 | // an explicit task. |
| 3713 | DVar = Stack->hasInnermostDSA( |
| 3714 | FD, |
| 3715 | [](OpenMPClauseKind C, bool AppliedToPointee) { |
| 3716 | return C == OMPC_reduction && !AppliedToPointee; |
| 3717 | }, |
| 3718 | [](OpenMPDirectiveKind K) { |
| 3719 | return isOpenMPParallelDirective(K) || |
| 3720 | isOpenMPWorksharingDirective(K) || isOpenMPTeamsDirective(K); |
| 3721 | }, |
| 3722 | /*FromParent=*/true); |
| 3723 | if (isOpenMPTaskingDirective(DKind) && DVar.CKind == OMPC_reduction) { |
| 3724 | ErrorFound = true; |
| 3725 | SemaRef.Diag(ELoc, diag::err_omp_reduction_in_task); |
| 3726 | reportOriginalDsa(SemaRef, Stack, FD, DVar); |
| 3727 | return; |
| 3728 | } |
| 3729 | |
| 3730 | // Define implicit data-sharing attributes for task. |
| 3731 | DVar = Stack->getImplicitDSA(FD, /*FromParent=*/false); |
| 3732 | if (isOpenMPTaskingDirective(DKind) && DVar.CKind != OMPC_shared && |
| 3733 | !Stack->isLoopControlVariable(FD).first) { |
| 3734 | // Check if there is a captured expression for the current field in the |
| 3735 | // region. Do not mark it as firstprivate unless there is no captured |
| 3736 | // expression. |
| 3737 | // TODO: try to make it firstprivate. |
| 3738 | if (DVar.CKind != OMPC_unknown) |
| 3739 | ImplicitFirstprivate.push_back(E); |
| 3740 | } |
| 3741 | return; |
| 3742 | } |
| 3743 | if (isOpenMPTargetExecutionDirective(DKind)) { |
| 3744 | OMPClauseMappableExprCommon::MappableExprComponentList CurComponents; |
| 3745 | if (!checkMapClauseExpressionBase(SemaRef, E, CurComponents, OMPC_map, |
| 3746 | Stack->getCurrentDirective(), |
| 3747 | /*NoDiagnose=*/true)) |
| 3748 | return; |
| 3749 | const auto *VD = cast<ValueDecl>( |
| 3750 | CurComponents.back().getAssociatedDeclaration()->getCanonicalDecl()); |
| 3751 | if (!Stack->checkMappableExprComponentListsForDecl( |
| 3752 | VD, /*CurrentRegionOnly=*/true, |
| 3753 | [&CurComponents]( |
| 3754 | OMPClauseMappableExprCommon::MappableExprComponentListRef |
| 3755 | StackComponents, |
| 3756 | OpenMPClauseKind) { |
| 3757 | auto CCI = CurComponents.rbegin(); |
| 3758 | auto CCE = CurComponents.rend(); |
| 3759 | for (const auto &SC : llvm::reverse(StackComponents)) { |
| 3760 | // Do both expressions have the same kind? |
| 3761 | if (CCI->getAssociatedExpression()->getStmtClass() != |
| 3762 | SC.getAssociatedExpression()->getStmtClass()) |
| 3763 | if (!((isa<OMPArraySectionExpr>( |
| 3764 | SC.getAssociatedExpression()) || |
| 3765 | isa<OMPArrayShapingExpr>( |
| 3766 | SC.getAssociatedExpression())) && |
| 3767 | isa<ArraySubscriptExpr>( |
| 3768 | CCI->getAssociatedExpression()))) |
| 3769 | return false; |
| 3770 | |
| 3771 | const Decl *CCD = CCI->getAssociatedDeclaration(); |
| 3772 | const Decl *SCD = SC.getAssociatedDeclaration(); |
| 3773 | CCD = CCD ? CCD->getCanonicalDecl() : nullptr; |
| 3774 | SCD = SCD ? SCD->getCanonicalDecl() : nullptr; |
| 3775 | if (SCD != CCD) |
| 3776 | return false; |
| 3777 | std::advance(CCI, 1); |
| 3778 | if (CCI == CCE) |
| 3779 | break; |
| 3780 | } |
| 3781 | return true; |
| 3782 | })) { |
| 3783 | Visit(E->getBase()); |
| 3784 | } |
| 3785 | } else if (!TryCaptureCXXThisMembers) { |
| 3786 | Visit(E->getBase()); |
| 3787 | } |
| 3788 | } |
| 3789 | void VisitOMPExecutableDirective(OMPExecutableDirective *S) { |
| 3790 | for (OMPClause *C : S->clauses()) { |
| 3791 | // Skip analysis of arguments of implicitly defined firstprivate clause |
| 3792 | // for task|target directives. |
| 3793 | // Skip analysis of arguments of implicitly defined map clause for target |
| 3794 | // directives. |
| 3795 | if (C && !((isa<OMPFirstprivateClause>(C) || isa<OMPMapClause>(C)) && |
| 3796 | C->isImplicit() && |
| 3797 | !isOpenMPTaskingDirective(Stack->getCurrentDirective()))) { |
| 3798 | for (Stmt *CC : C->children()) { |
| 3799 | if (CC) |
| 3800 | Visit(CC); |
| 3801 | } |
| 3802 | } |
| 3803 | } |
| 3804 | // Check implicitly captured variables. |
| 3805 | VisitSubCaptures(S); |
| 3806 | } |
| 3807 | |
| 3808 | void VisitOMPTileDirective(OMPTileDirective *S) { |
| 3809 | // #pragma omp tile does not introduce data sharing. |
| 3810 | VisitStmt(S); |
| 3811 | } |
| 3812 | |
| 3813 | void VisitOMPUnrollDirective(OMPUnrollDirective *S) { |
| 3814 | // #pragma omp unroll does not introduce data sharing. |
| 3815 | VisitStmt(S); |
| 3816 | } |
| 3817 | |
| 3818 | void VisitStmt(Stmt *S) { |
| 3819 | for (Stmt *C : S->children()) { |
| 3820 | if (C) { |
| 3821 | // Check implicitly captured variables in the task-based directives to |
| 3822 | // check if they must be firstprivatized. |
| 3823 | Visit(C); |
| 3824 | } |
| 3825 | } |
| 3826 | } |
| 3827 | |
| 3828 | void visitSubCaptures(CapturedStmt *S) { |
| 3829 | for (const CapturedStmt::Capture &Cap : S->captures()) { |
| 3830 | if (!Cap.capturesVariable() && !Cap.capturesVariableByCopy()) |
| 3831 | continue; |
| 3832 | VarDecl *VD = Cap.getCapturedVar(); |
| 3833 | // Do not try to map the variable if it or its sub-component was mapped |
| 3834 | // already. |
| 3835 | if (isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()) && |
| 3836 | Stack->checkMappableExprComponentListsForDecl( |
| 3837 | VD, /*CurrentRegionOnly=*/true, |
| 3838 | [](OMPClauseMappableExprCommon::MappableExprComponentListRef, |
| 3839 | OpenMPClauseKind) { return true; })) |
| 3840 | continue; |
| 3841 | DeclRefExpr *DRE = buildDeclRefExpr( |
| 3842 | SemaRef, VD, VD->getType().getNonLValueExprType(SemaRef.Context), |
| 3843 | Cap.getLocation(), /*RefersToCapture=*/true); |
| 3844 | Visit(DRE); |
| 3845 | } |
| 3846 | } |
| 3847 | bool isErrorFound() const { return ErrorFound; } |
| 3848 | ArrayRef<Expr *> getImplicitFirstprivate() const { |
| 3849 | return ImplicitFirstprivate; |
| 3850 | } |
| 3851 | ArrayRef<Expr *> getImplicitMap(OpenMPDefaultmapClauseKind DK, |
| 3852 | OpenMPMapClauseKind MK) const { |
| 3853 | return ImplicitMap[DK][MK]; |
| 3854 | } |
| 3855 | ArrayRef<OpenMPMapModifierKind> |
| 3856 | getImplicitMapModifier(OpenMPDefaultmapClauseKind Kind) const { |
| 3857 | return ImplicitMapModifier[Kind]; |
| 3858 | } |
| 3859 | const Sema::VarsWithInheritedDSAType &getVarsWithInheritedDSA() const { |
| 3860 | return VarsWithInheritedDSA; |
| 3861 | } |
| 3862 | |
| 3863 | DSAAttrChecker(DSAStackTy *S, Sema &SemaRef, CapturedStmt *CS) |
| 3864 | : Stack(S), SemaRef(SemaRef), ErrorFound(false), CS(CS) { |
| 3865 | // Process declare target link variables for the target directives. |
| 3866 | if (isOpenMPTargetExecutionDirective(S->getCurrentDirective())) { |
| 3867 | for (DeclRefExpr *E : Stack->getLinkGlobals()) |
| 3868 | Visit(E); |
| 3869 | } |
| 3870 | } |
| 3871 | }; |
| 3872 | } // namespace |
| 3873 | |
| 3874 | void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) { |
| 3875 | switch (DKind) { |
| 3876 | case OMPD_parallel: |
| 3877 | case OMPD_parallel_for: |
| 3878 | case OMPD_parallel_for_simd: |
| 3879 | case OMPD_parallel_sections: |
| 3880 | case OMPD_parallel_master: |
| 3881 | case OMPD_teams: |
| 3882 | case OMPD_teams_distribute: |
| 3883 | case OMPD_teams_distribute_simd: { |
| 3884 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 3885 | QualType KmpInt32PtrTy = |
| 3886 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 3887 | Sema::CapturedParamNameType Params[] = { |
| 3888 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 3889 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 3890 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 3891 | }; |
| 3892 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 3893 | Params); |
| 3894 | break; |
| 3895 | } |
| 3896 | case OMPD_target_teams: |
| 3897 | case OMPD_target_parallel: |
| 3898 | case OMPD_target_parallel_for: |
| 3899 | case OMPD_target_parallel_for_simd: |
| 3900 | case OMPD_target_teams_distribute: |
| 3901 | case OMPD_target_teams_distribute_simd: { |
| 3902 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 3903 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 3904 | QualType KmpInt32PtrTy = |
| 3905 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 3906 | QualType Args[] = {VoidPtrTy}; |
| 3907 | FunctionProtoType::ExtProtoInfo EPI; |
| 3908 | EPI.Variadic = true; |
| 3909 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 3910 | Sema::CapturedParamNameType Params[] = { |
| 3911 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 3912 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 3913 | std::make_pair(".privates.", VoidPtrTy), |
| 3914 | std::make_pair( |
| 3915 | ".copy_fn.", |
| 3916 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 3917 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 3918 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 3919 | }; |
| 3920 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 3921 | Params, /*OpenMPCaptureLevel=*/0); |
| 3922 | // Mark this captured region as inlined, because we don't use outlined |
| 3923 | // function directly. |
| 3924 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 3925 | AlwaysInlineAttr::CreateImplicit( |
| 3926 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 3927 | AlwaysInlineAttr::Keyword_forceinline)); |
| 3928 | Sema::CapturedParamNameType ParamsTarget[] = { |
| 3929 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 3930 | }; |
| 3931 | // Start a captured region for 'target' with no implicit parameters. |
| 3932 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 3933 | ParamsTarget, /*OpenMPCaptureLevel=*/1); |
| 3934 | Sema::CapturedParamNameType ParamsTeamsOrParallel[] = { |
| 3935 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 3936 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 3937 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 3938 | }; |
| 3939 | // Start a captured region for 'teams' or 'parallel'. Both regions have |
| 3940 | // the same implicit parameters. |
| 3941 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 3942 | ParamsTeamsOrParallel, /*OpenMPCaptureLevel=*/2); |
| 3943 | break; |
| 3944 | } |
| 3945 | case OMPD_target: |
| 3946 | case OMPD_target_simd: { |
| 3947 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 3948 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 3949 | QualType KmpInt32PtrTy = |
| 3950 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 3951 | QualType Args[] = {VoidPtrTy}; |
| 3952 | FunctionProtoType::ExtProtoInfo EPI; |
| 3953 | EPI.Variadic = true; |
| 3954 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 3955 | Sema::CapturedParamNameType Params[] = { |
| 3956 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 3957 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 3958 | std::make_pair(".privates.", VoidPtrTy), |
| 3959 | std::make_pair( |
| 3960 | ".copy_fn.", |
| 3961 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 3962 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 3963 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 3964 | }; |
| 3965 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 3966 | Params, /*OpenMPCaptureLevel=*/0); |
| 3967 | // Mark this captured region as inlined, because we don't use outlined |
| 3968 | // function directly. |
| 3969 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 3970 | AlwaysInlineAttr::CreateImplicit( |
| 3971 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 3972 | AlwaysInlineAttr::Keyword_forceinline)); |
| 3973 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 3974 | std::make_pair(StringRef(), QualType()), |
| 3975 | /*OpenMPCaptureLevel=*/1); |
| 3976 | break; |
| 3977 | } |
| 3978 | case OMPD_atomic: |
| 3979 | case OMPD_critical: |
| 3980 | case OMPD_section: |
| 3981 | case OMPD_master: |
| 3982 | case OMPD_masked: |
| 3983 | case OMPD_tile: |
| 3984 | case OMPD_unroll: |
| 3985 | break; |
| 3986 | case OMPD_simd: |
| 3987 | case OMPD_for: |
| 3988 | case OMPD_for_simd: |
| 3989 | case OMPD_sections: |
| 3990 | case OMPD_single: |
| 3991 | case OMPD_taskgroup: |
| 3992 | case OMPD_distribute: |
| 3993 | case OMPD_distribute_simd: |
| 3994 | case OMPD_ordered: |
| 3995 | case OMPD_target_data: |
| 3996 | case OMPD_dispatch: { |
| 3997 | Sema::CapturedParamNameType Params[] = { |
| 3998 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 3999 | }; |
| 4000 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4001 | Params); |
| 4002 | break; |
| 4003 | } |
| 4004 | case OMPD_task: { |
| 4005 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 4006 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 4007 | QualType KmpInt32PtrTy = |
| 4008 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4009 | QualType Args[] = {VoidPtrTy}; |
| 4010 | FunctionProtoType::ExtProtoInfo EPI; |
| 4011 | EPI.Variadic = true; |
| 4012 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 4013 | Sema::CapturedParamNameType Params[] = { |
| 4014 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 4015 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 4016 | std::make_pair(".privates.", VoidPtrTy), |
| 4017 | std::make_pair( |
| 4018 | ".copy_fn.", |
| 4019 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 4020 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 4021 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4022 | }; |
| 4023 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4024 | Params); |
| 4025 | // Mark this captured region as inlined, because we don't use outlined |
| 4026 | // function directly. |
| 4027 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 4028 | AlwaysInlineAttr::CreateImplicit( |
| 4029 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 4030 | AlwaysInlineAttr::Keyword_forceinline)); |
| 4031 | break; |
| 4032 | } |
| 4033 | case OMPD_taskloop: |
| 4034 | case OMPD_taskloop_simd: |
| 4035 | case OMPD_master_taskloop: |
| 4036 | case OMPD_master_taskloop_simd: { |
| 4037 | QualType KmpInt32Ty = |
| 4038 | Context.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1) |
| 4039 | .withConst(); |
| 4040 | QualType KmpUInt64Ty = |
| 4041 | Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0) |
| 4042 | .withConst(); |
| 4043 | QualType KmpInt64Ty = |
| 4044 | Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1) |
| 4045 | .withConst(); |
| 4046 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 4047 | QualType KmpInt32PtrTy = |
| 4048 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4049 | QualType Args[] = {VoidPtrTy}; |
| 4050 | FunctionProtoType::ExtProtoInfo EPI; |
| 4051 | EPI.Variadic = true; |
| 4052 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 4053 | Sema::CapturedParamNameType Params[] = { |
| 4054 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 4055 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 4056 | std::make_pair(".privates.", VoidPtrTy), |
| 4057 | std::make_pair( |
| 4058 | ".copy_fn.", |
| 4059 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 4060 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 4061 | std::make_pair(".lb.", KmpUInt64Ty), |
| 4062 | std::make_pair(".ub.", KmpUInt64Ty), |
| 4063 | std::make_pair(".st.", KmpInt64Ty), |
| 4064 | std::make_pair(".liter.", KmpInt32Ty), |
| 4065 | std::make_pair(".reductions.", VoidPtrTy), |
| 4066 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4067 | }; |
| 4068 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4069 | Params); |
| 4070 | // Mark this captured region as inlined, because we don't use outlined |
| 4071 | // function directly. |
| 4072 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 4073 | AlwaysInlineAttr::CreateImplicit( |
| 4074 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 4075 | AlwaysInlineAttr::Keyword_forceinline)); |
| 4076 | break; |
| 4077 | } |
| 4078 | case OMPD_parallel_master_taskloop: |
| 4079 | case OMPD_parallel_master_taskloop_simd: { |
| 4080 | QualType KmpInt32Ty = |
| 4081 | Context.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1) |
| 4082 | .withConst(); |
| 4083 | QualType KmpUInt64Ty = |
| 4084 | Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0) |
| 4085 | .withConst(); |
| 4086 | QualType KmpInt64Ty = |
| 4087 | Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1) |
| 4088 | .withConst(); |
| 4089 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 4090 | QualType KmpInt32PtrTy = |
| 4091 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4092 | Sema::CapturedParamNameType ParamsParallel[] = { |
| 4093 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 4094 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 4095 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4096 | }; |
| 4097 | // Start a captured region for 'parallel'. |
| 4098 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4099 | ParamsParallel, /*OpenMPCaptureLevel=*/0); |
| 4100 | QualType Args[] = {VoidPtrTy}; |
| 4101 | FunctionProtoType::ExtProtoInfo EPI; |
| 4102 | EPI.Variadic = true; |
| 4103 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 4104 | Sema::CapturedParamNameType Params[] = { |
| 4105 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 4106 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 4107 | std::make_pair(".privates.", VoidPtrTy), |
| 4108 | std::make_pair( |
| 4109 | ".copy_fn.", |
| 4110 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 4111 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 4112 | std::make_pair(".lb.", KmpUInt64Ty), |
| 4113 | std::make_pair(".ub.", KmpUInt64Ty), |
| 4114 | std::make_pair(".st.", KmpInt64Ty), |
| 4115 | std::make_pair(".liter.", KmpInt32Ty), |
| 4116 | std::make_pair(".reductions.", VoidPtrTy), |
| 4117 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4118 | }; |
| 4119 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4120 | Params, /*OpenMPCaptureLevel=*/1); |
| 4121 | // Mark this captured region as inlined, because we don't use outlined |
| 4122 | // function directly. |
| 4123 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 4124 | AlwaysInlineAttr::CreateImplicit( |
| 4125 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 4126 | AlwaysInlineAttr::Keyword_forceinline)); |
| 4127 | break; |
| 4128 | } |
| 4129 | case OMPD_distribute_parallel_for_simd: |
| 4130 | case OMPD_distribute_parallel_for: { |
| 4131 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 4132 | QualType KmpInt32PtrTy = |
| 4133 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4134 | Sema::CapturedParamNameType Params[] = { |
| 4135 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 4136 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 4137 | std::make_pair(".previous.lb.", Context.getSizeType().withConst()), |
| 4138 | std::make_pair(".previous.ub.", Context.getSizeType().withConst()), |
| 4139 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4140 | }; |
| 4141 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4142 | Params); |
| 4143 | break; |
| 4144 | } |
| 4145 | case OMPD_target_teams_distribute_parallel_for: |
| 4146 | case OMPD_target_teams_distribute_parallel_for_simd: { |
| 4147 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 4148 | QualType KmpInt32PtrTy = |
| 4149 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4150 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 4151 | |
| 4152 | QualType Args[] = {VoidPtrTy}; |
| 4153 | FunctionProtoType::ExtProtoInfo EPI; |
| 4154 | EPI.Variadic = true; |
| 4155 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 4156 | Sema::CapturedParamNameType Params[] = { |
| 4157 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 4158 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 4159 | std::make_pair(".privates.", VoidPtrTy), |
| 4160 | std::make_pair( |
| 4161 | ".copy_fn.", |
| 4162 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 4163 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 4164 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4165 | }; |
| 4166 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4167 | Params, /*OpenMPCaptureLevel=*/0); |
| 4168 | // Mark this captured region as inlined, because we don't use outlined |
| 4169 | // function directly. |
| 4170 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 4171 | AlwaysInlineAttr::CreateImplicit( |
| 4172 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 4173 | AlwaysInlineAttr::Keyword_forceinline)); |
| 4174 | Sema::CapturedParamNameType ParamsTarget[] = { |
| 4175 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4176 | }; |
| 4177 | // Start a captured region for 'target' with no implicit parameters. |
| 4178 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4179 | ParamsTarget, /*OpenMPCaptureLevel=*/1); |
| 4180 | |
| 4181 | Sema::CapturedParamNameType ParamsTeams[] = { |
| 4182 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 4183 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 4184 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4185 | }; |
| 4186 | // Start a captured region for 'target' with no implicit parameters. |
| 4187 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4188 | ParamsTeams, /*OpenMPCaptureLevel=*/2); |
| 4189 | |
| 4190 | Sema::CapturedParamNameType ParamsParallel[] = { |
| 4191 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 4192 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 4193 | std::make_pair(".previous.lb.", Context.getSizeType().withConst()), |
| 4194 | std::make_pair(".previous.ub.", Context.getSizeType().withConst()), |
| 4195 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4196 | }; |
| 4197 | // Start a captured region for 'teams' or 'parallel'. Both regions have |
| 4198 | // the same implicit parameters. |
| 4199 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4200 | ParamsParallel, /*OpenMPCaptureLevel=*/3); |
| 4201 | break; |
| 4202 | } |
| 4203 | |
| 4204 | case OMPD_teams_distribute_parallel_for: |
| 4205 | case OMPD_teams_distribute_parallel_for_simd: { |
| 4206 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 4207 | QualType KmpInt32PtrTy = |
| 4208 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4209 | |
| 4210 | Sema::CapturedParamNameType ParamsTeams[] = { |
| 4211 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 4212 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 4213 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4214 | }; |
| 4215 | // Start a captured region for 'target' with no implicit parameters. |
| 4216 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4217 | ParamsTeams, /*OpenMPCaptureLevel=*/0); |
| 4218 | |
| 4219 | Sema::CapturedParamNameType ParamsParallel[] = { |
| 4220 | std::make_pair(".global_tid.", KmpInt32PtrTy), |
| 4221 | std::make_pair(".bound_tid.", KmpInt32PtrTy), |
| 4222 | std::make_pair(".previous.lb.", Context.getSizeType().withConst()), |
| 4223 | std::make_pair(".previous.ub.", Context.getSizeType().withConst()), |
| 4224 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4225 | }; |
| 4226 | // Start a captured region for 'teams' or 'parallel'. Both regions have |
| 4227 | // the same implicit parameters. |
| 4228 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4229 | ParamsParallel, /*OpenMPCaptureLevel=*/1); |
| 4230 | break; |
| 4231 | } |
| 4232 | case OMPD_target_update: |
| 4233 | case OMPD_target_enter_data: |
| 4234 | case OMPD_target_exit_data: { |
| 4235 | QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst(); |
| 4236 | QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict(); |
| 4237 | QualType KmpInt32PtrTy = |
| 4238 | Context.getPointerType(KmpInt32Ty).withConst().withRestrict(); |
| 4239 | QualType Args[] = {VoidPtrTy}; |
| 4240 | FunctionProtoType::ExtProtoInfo EPI; |
| 4241 | EPI.Variadic = true; |
| 4242 | QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI); |
| 4243 | Sema::CapturedParamNameType Params[] = { |
| 4244 | std::make_pair(".global_tid.", KmpInt32Ty), |
| 4245 | std::make_pair(".part_id.", KmpInt32PtrTy), |
| 4246 | std::make_pair(".privates.", VoidPtrTy), |
| 4247 | std::make_pair( |
| 4248 | ".copy_fn.", |
| 4249 | Context.getPointerType(CopyFnType).withConst().withRestrict()), |
| 4250 | std::make_pair(".task_t.", Context.VoidPtrTy.withConst()), |
| 4251 | std::make_pair(StringRef(), QualType()) // __context with shared vars |
| 4252 | }; |
| 4253 | ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getConstructLoc(), CurScope, CR_OpenMP, |
| 4254 | Params); |
| 4255 | // Mark this captured region as inlined, because we don't use outlined |
| 4256 | // function directly. |
| 4257 | getCurCapturedRegion()->TheCapturedDecl->addAttr( |
| 4258 | AlwaysInlineAttr::CreateImplicit( |
| 4259 | Context, {}, AttributeCommonInfo::AS_Keyword, |
| 4260 | AlwaysInlineAttr::Keyword_forceinline)); |
| 4261 | break; |
| 4262 | } |
| 4263 | case OMPD_threadprivate: |
| 4264 | case OMPD_allocate: |
| 4265 | case OMPD_taskyield: |
| 4266 | case OMPD_barrier: |
| 4267 | case OMPD_taskwait: |
| 4268 | case OMPD_cancellation_point: |
| 4269 | case OMPD_cancel: |
| 4270 | case OMPD_flush: |
| 4271 | case OMPD_depobj: |
| 4272 | case OMPD_scan: |
| 4273 | case OMPD_declare_reduction: |
| 4274 | case OMPD_declare_mapper: |
| 4275 | case OMPD_declare_simd: |
| 4276 | case OMPD_declare_target: |
| 4277 | case OMPD_end_declare_target: |
| 4278 | case OMPD_requires: |
| 4279 | case OMPD_declare_variant: |
| 4280 | case OMPD_begin_declare_variant: |
| 4281 | case OMPD_end_declare_variant: |
| 4282 | llvm_unreachable("OpenMP Directive is not allowed")__builtin_unreachable(); |
| 4283 | case OMPD_unknown: |
| 4284 | default: |
| 4285 | llvm_unreachable("Unknown OpenMP directive")__builtin_unreachable(); |
| 4286 | } |
| 4287 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setContext(CurContext); |
| 4288 | } |
| 4289 | |
| 4290 | int Sema::getNumberOfConstructScopes(unsigned Level) const { |
| 4291 | return getOpenMPCaptureLevels(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getDirective(Level)); |
| 4292 | } |
| 4293 | |
| 4294 | int Sema::getOpenMPCaptureLevels(OpenMPDirectiveKind DKind) { |
| 4295 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; |
| 4296 | getOpenMPCaptureRegions(CaptureRegions, DKind); |
| 4297 | return CaptureRegions.size(); |
| 4298 | } |
| 4299 | |
| 4300 | static OMPCapturedExprDecl *buildCaptureDecl(Sema &S, IdentifierInfo *Id, |
| 4301 | Expr *CaptureExpr, bool WithInit, |
| 4302 | bool AsExpression) { |
| 4303 | assert(CaptureExpr)((void)0); |
| 4304 | ASTContext &C = S.getASTContext(); |
| 4305 | Expr *Init = AsExpression ? CaptureExpr : CaptureExpr->IgnoreImpCasts(); |
| 4306 | QualType Ty = Init->getType(); |
| 4307 | if (CaptureExpr->getObjectKind() == OK_Ordinary && CaptureExpr->isGLValue()) { |
| 4308 | if (S.getLangOpts().CPlusPlus) { |
| 4309 | Ty = C.getLValueReferenceType(Ty); |
| 4310 | } else { |
| 4311 | Ty = C.getPointerType(Ty); |
| 4312 | ExprResult Res = |
| 4313 | S.CreateBuiltinUnaryOp(CaptureExpr->getExprLoc(), UO_AddrOf, Init); |
| 4314 | if (!Res.isUsable()) |
| 4315 | return nullptr; |
| 4316 | Init = Res.get(); |
| 4317 | } |
| 4318 | WithInit = true; |
| 4319 | } |
| 4320 | auto *CED = OMPCapturedExprDecl::Create(C, S.CurContext, Id, Ty, |
| 4321 | CaptureExpr->getBeginLoc()); |
| 4322 | if (!WithInit) |
| 4323 | CED->addAttr(OMPCaptureNoInitAttr::CreateImplicit(C)); |
| 4324 | S.CurContext->addHiddenDecl(CED); |
| 4325 | Sema::TentativeAnalysisScope Trap(S); |
| 4326 | S.AddInitializerToDecl(CED, Init, /*DirectInit=*/false); |
| 4327 | return CED; |
| 4328 | } |
| 4329 | |
| 4330 | static DeclRefExpr *buildCapture(Sema &S, ValueDecl *D, Expr *CaptureExpr, |
| 4331 | bool WithInit) { |
| 4332 | OMPCapturedExprDecl *CD; |
| 4333 | if (VarDecl *VD = S.isOpenMPCapturedDecl(D)) |
| 4334 | CD = cast<OMPCapturedExprDecl>(VD); |
| 4335 | else |
| 4336 | CD = buildCaptureDecl(S, D->getIdentifier(), CaptureExpr, WithInit, |
| 4337 | /*AsExpression=*/false); |
| 4338 | return buildDeclRefExpr(S, CD, CD->getType().getNonReferenceType(), |
| 4339 | CaptureExpr->getExprLoc()); |
| 4340 | } |
| 4341 | |
| 4342 | static ExprResult buildCapture(Sema &S, Expr *CaptureExpr, DeclRefExpr *&Ref) { |
| 4343 | CaptureExpr = S.DefaultLvalueConversion(CaptureExpr).get(); |
| 4344 | if (!Ref) { |
| 4345 | OMPCapturedExprDecl *CD = buildCaptureDecl( |
| 4346 | S, &S.getASTContext().Idents.get(".capture_expr."), CaptureExpr, |
| 4347 | /*WithInit=*/true, /*AsExpression=*/true); |
| 4348 | Ref = buildDeclRefExpr(S, CD, CD->getType().getNonReferenceType(), |
| 4349 | CaptureExpr->getExprLoc()); |
| 4350 | } |
| 4351 | ExprResult Res = Ref; |
| 4352 | if (!S.getLangOpts().CPlusPlus && |
| 4353 | CaptureExpr->getObjectKind() == OK_Ordinary && CaptureExpr->isGLValue() && |
| 4354 | Ref->getType()->isPointerType()) { |
| 4355 | Res = S.CreateBuiltinUnaryOp(CaptureExpr->getExprLoc(), UO_Deref, Ref); |
| 4356 | if (!Res.isUsable()) |
| 4357 | return ExprError(); |
| 4358 | } |
| 4359 | return S.DefaultLvalueConversion(Res.get()); |
| 4360 | } |
| 4361 | |
| 4362 | namespace { |
| 4363 | // OpenMP directives parsed in this section are represented as a |
| 4364 | // CapturedStatement with an associated statement. If a syntax error |
| 4365 | // is detected during the parsing of the associated statement, the |
| 4366 | // compiler must abort processing and close the CapturedStatement. |
| 4367 | // |
| 4368 | // Combined directives such as 'target parallel' have more than one |
| 4369 | // nested CapturedStatements. This RAII ensures that we unwind out |
| 4370 | // of all the nested CapturedStatements when an error is found. |
| 4371 | class CaptureRegionUnwinderRAII { |
| 4372 | private: |
| 4373 | Sema &S; |
| 4374 | bool &ErrorFound; |
| 4375 | OpenMPDirectiveKind DKind = OMPD_unknown; |
| 4376 | |
| 4377 | public: |
| 4378 | CaptureRegionUnwinderRAII(Sema &S, bool &ErrorFound, |
| 4379 | OpenMPDirectiveKind DKind) |
| 4380 | : S(S), ErrorFound(ErrorFound), DKind(DKind) {} |
| 4381 | ~CaptureRegionUnwinderRAII() { |
| 4382 | if (ErrorFound) { |
| 4383 | int ThisCaptureLevel = S.getOpenMPCaptureLevels(DKind); |
| 4384 | while (--ThisCaptureLevel >= 0) |
| 4385 | S.ActOnCapturedRegionError(); |
| 4386 | } |
| 4387 | } |
| 4388 | }; |
| 4389 | } // namespace |
| 4390 | |
| 4391 | void Sema::tryCaptureOpenMPLambdas(ValueDecl *V) { |
| 4392 | // Capture variables captured by reference in lambdas for target-based |
| 4393 | // directives. |
| 4394 | if (!CurContext->isDependentContext() && |
| 4395 | (isOpenMPTargetExecutionDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()) || |
| 4396 | isOpenMPTargetDataManagementDirective( |
| 4397 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()))) { |
| 4398 | QualType Type = V->getType(); |
| 4399 | if (const auto *RD = Type.getCanonicalType() |
| 4400 | .getNonReferenceType() |
| 4401 | ->getAsCXXRecordDecl()) { |
| 4402 | bool SavedForceCaptureByReferenceInTargetExecutable = |
| 4403 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->isForceCaptureByReferenceInTargetExecutable(); |
| 4404 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setForceCaptureByReferenceInTargetExecutable( |
| 4405 | /*V=*/true); |
| 4406 | if (RD->isLambda()) { |
| 4407 | llvm::DenseMap<const VarDecl *, FieldDecl *> Captures; |
| 4408 | FieldDecl *ThisCapture; |
| 4409 | RD->getCaptureFields(Captures, ThisCapture); |
| 4410 | for (const LambdaCapture &LC : RD->captures()) { |
| 4411 | if (LC.getCaptureKind() == LCK_ByRef) { |
| 4412 | VarDecl *VD = LC.getCapturedVar(); |
| 4413 | DeclContext *VDC = VD->getDeclContext(); |
| 4414 | if (!VDC->Encloses(CurContext)) |
| 4415 | continue; |
| 4416 | MarkVariableReferenced(LC.getLocation(), VD); |
| 4417 | } else if (LC.getCaptureKind() == LCK_This) { |
| 4418 | QualType ThisTy = getCurrentThisType(); |
| 4419 | if (!ThisTy.isNull() && |
| 4420 | Context.typesAreCompatible(ThisTy, ThisCapture->getType())) |
| 4421 | CheckCXXThisCapture(LC.getLocation()); |
| 4422 | } |
| 4423 | } |
| 4424 | } |
| 4425 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setForceCaptureByReferenceInTargetExecutable( |
| 4426 | SavedForceCaptureByReferenceInTargetExecutable); |
| 4427 | } |
| 4428 | } |
| 4429 | } |
| 4430 | |
| 4431 | static bool checkOrderedOrderSpecified(Sema &S, |
| 4432 | const ArrayRef<OMPClause *> Clauses) { |
| 4433 | const OMPOrderedClause *Ordered = nullptr; |
| 4434 | const OMPOrderClause *Order = nullptr; |
| 4435 | |
| 4436 | for (const OMPClause *Clause : Clauses) { |
| 4437 | if (Clause->getClauseKind() == OMPC_ordered) |
| 4438 | Ordered = cast<OMPOrderedClause>(Clause); |
| 4439 | else if (Clause->getClauseKind() == OMPC_order) { |
| 4440 | Order = cast<OMPOrderClause>(Clause); |
| 4441 | if (Order->getKind() != OMPC_ORDER_concurrent) |
| 4442 | Order = nullptr; |
| 4443 | } |
| 4444 | if (Ordered && Order) |
| 4445 | break; |
| 4446 | } |
| 4447 | |
| 4448 | if (Ordered && Order) { |
| 4449 | S.Diag(Order->getKindKwLoc(), |
| 4450 | diag::err_omp_simple_clause_incompatible_with_ordered) |
| 4451 | << getOpenMPClauseName(OMPC_order) |
| 4452 | << getOpenMPSimpleClauseTypeName(OMPC_order, OMPC_ORDER_concurrent) |
| 4453 | << SourceRange(Order->getBeginLoc(), Order->getEndLoc()); |
| 4454 | S.Diag(Ordered->getBeginLoc(), diag::note_omp_ordered_param) |
| 4455 | << 0 << SourceRange(Ordered->getBeginLoc(), Ordered->getEndLoc()); |
| 4456 | return true; |
| 4457 | } |
| 4458 | return false; |
| 4459 | } |
| 4460 | |
| 4461 | StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S, |
| 4462 | ArrayRef<OMPClause *> Clauses) { |
| 4463 | if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective() == OMPD_atomic || |
| 4464 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective() == OMPD_critical || |
| 4465 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective() == OMPD_section || |
| 4466 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective() == OMPD_master || |
| 4467 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective() == OMPD_masked) |
| 4468 | return S; |
| 4469 | |
| 4470 | bool ErrorFound = false; |
| 4471 | CaptureRegionUnwinderRAII CaptureRegionUnwinder( |
| 4472 | *this, ErrorFound, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()); |
| 4473 | if (!S.isUsable()) { |
| 4474 | ErrorFound = true; |
| 4475 | return StmtError(); |
| 4476 | } |
| 4477 | |
| 4478 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; |
| 4479 | getOpenMPCaptureRegions(CaptureRegions, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()); |
| 4480 | OMPOrderedClause *OC = nullptr; |
| 4481 | OMPScheduleClause *SC = nullptr; |
| 4482 | SmallVector<const OMPLinearClause *, 4> LCs; |
| 4483 | SmallVector<const OMPClauseWithPreInit *, 4> PICs; |
| 4484 | // This is required for proper codegen. |
| 4485 | for (OMPClause *Clause : Clauses) { |
| 4486 | if (!LangOpts.OpenMPSimd && |
| 4487 | isOpenMPTaskingDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()) && |
| 4488 | Clause->getClauseKind() == OMPC_in_reduction) { |
| 4489 | // Capture taskgroup task_reduction descriptors inside the tasking regions |
| 4490 | // with the corresponding in_reduction items. |
| 4491 | auto *IRC = cast<OMPInReductionClause>(Clause); |
| 4492 | for (Expr *E : IRC->taskgroup_descriptors()) |
| 4493 | if (E) |
| 4494 | MarkDeclarationsReferencedInExpr(E); |
| 4495 | } |
| 4496 | if (isOpenMPPrivate(Clause->getClauseKind()) || |
| 4497 | Clause->getClauseKind() == OMPC_copyprivate || |
| 4498 | (getLangOpts().OpenMPUseTLS && |
| 4499 | getASTContext().getTargetInfo().isTLSSupported() && |
| 4500 | Clause->getClauseKind() == OMPC_copyin)) { |
| 4501 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setForceVarCapturing(Clause->getClauseKind() == OMPC_copyin); |
| 4502 | // Mark all variables in private list clauses as used in inner region. |
| 4503 | for (Stmt *VarRef : Clause->children()) { |
| 4504 | if (auto *E = cast_or_null<Expr>(VarRef)) { |
| 4505 | MarkDeclarationsReferencedInExpr(E); |
| 4506 | } |
| 4507 | } |
| 4508 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setForceVarCapturing(/*V=*/false); |
| 4509 | } else if (isOpenMPLoopTransformationDirective( |
| 4510 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective())) { |
| 4511 | assert(CaptureRegions.empty() &&((void)0) |
| 4512 | "No captured regions in loop transformation directives.")((void)0); |
| 4513 | } else if (CaptureRegions.size() > 1 || |
| 4514 | CaptureRegions.back() != OMPD_unknown) { |
| 4515 | if (auto *C = OMPClauseWithPreInit::get(Clause)) |
| 4516 | PICs.push_back(C); |
| 4517 | if (auto *C = OMPClauseWithPostUpdate::get(Clause)) { |
| 4518 | if (Expr *E = C->getPostUpdateExpr()) |
| 4519 | MarkDeclarationsReferencedInExpr(E); |
| 4520 | } |
| 4521 | } |
| 4522 | if (Clause->getClauseKind() == OMPC_schedule) |
| 4523 | SC = cast<OMPScheduleClause>(Clause); |
| 4524 | else if (Clause->getClauseKind() == OMPC_ordered) |
| 4525 | OC = cast<OMPOrderedClause>(Clause); |
| 4526 | else if (Clause->getClauseKind() == OMPC_linear) |
| 4527 | LCs.push_back(cast<OMPLinearClause>(Clause)); |
| 4528 | } |
| 4529 | // Capture allocator expressions if used. |
| 4530 | for (Expr *E : DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getInnerAllocators()) |
| 4531 | MarkDeclarationsReferencedInExpr(E); |
| 4532 | // OpenMP, 2.7.1 Loop Construct, Restrictions |
| 4533 | // The nonmonotonic modifier cannot be specified if an ordered clause is |
| 4534 | // specified. |
| 4535 | if (SC && |
| 4536 | (SC->getFirstScheduleModifier() == OMPC_SCHEDULE_MODIFIER_nonmonotonic || |
| 4537 | SC->getSecondScheduleModifier() == |
| 4538 | OMPC_SCHEDULE_MODIFIER_nonmonotonic) && |
| 4539 | OC) { |
| 4540 | Diag(SC->getFirstScheduleModifier() == OMPC_SCHEDULE_MODIFIER_nonmonotonic |
| 4541 | ? SC->getFirstScheduleModifierLoc() |
| 4542 | : SC->getSecondScheduleModifierLoc(), |
| 4543 | diag::err_omp_simple_clause_incompatible_with_ordered) |
| 4544 | << getOpenMPClauseName(OMPC_schedule) |
| 4545 | << getOpenMPSimpleClauseTypeName(OMPC_schedule, |
| 4546 | OMPC_SCHEDULE_MODIFIER_nonmonotonic) |
| 4547 | << SourceRange(OC->getBeginLoc(), OC->getEndLoc()); |
| 4548 | ErrorFound = true; |
| 4549 | } |
| 4550 | // OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Restrictions. |
| 4551 | // If an order(concurrent) clause is present, an ordered clause may not appear |
| 4552 | // on the same directive. |
| 4553 | if (checkOrderedOrderSpecified(*this, Clauses)) |
| 4554 | ErrorFound = true; |
| 4555 | if (!LCs.empty() && OC && OC->getNumForLoops()) { |
| 4556 | for (const OMPLinearClause *C : LCs) { |
| 4557 | Diag(C->getBeginLoc(), diag::err_omp_linear_ordered) |
| 4558 | << SourceRange(OC->getBeginLoc(), OC->getEndLoc()); |
| 4559 | } |
| 4560 | ErrorFound = true; |
| 4561 | } |
| 4562 | if (isOpenMPWorksharingDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()) && |
| 4563 | isOpenMPSimdDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()) && OC && |
| 4564 | OC->getNumForLoops()) { |
| 4565 | Diag(OC->getBeginLoc(), diag::err_omp_ordered_simd) |
| 4566 | << getOpenMPDirectiveName(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->getCurrentDirective()); |
| 4567 | ErrorFound = true; |
| 4568 | } |
| 4569 | if (ErrorFound) { |
| 4570 | return StmtError(); |
| 4571 | } |
| 4572 | StmtResult SR = S; |
| 4573 | unsigned CompletedRegions = 0; |
| 4574 | for (OpenMPDirectiveKind ThisCaptureRegion : llvm::reverse(CaptureRegions)) { |
| 4575 | // Mark all variables in private list clauses as used in inner region. |
| 4576 | // Required for proper codegen of combined directives. |
| 4577 | // TODO: add processing for other clauses. |
| 4578 | if (ThisCaptureRegion != OMPD_unknown) { |
| 4579 | for (const clang::OMPClauseWithPreInit *C : PICs) { |
| 4580 | OpenMPDirectiveKind CaptureRegion = C->getCaptureRegion(); |
| 4581 | // Find the particular capture region for the clause if the |
| 4582 | // directive is a combined one with multiple capture regions. |
| 4583 | // If the directive is not a combined one, the capture region |
| 4584 | // associated with the clause is OMPD_unknown and is generated |
| 4585 | // only once. |
| 4586 | if (CaptureRegion == ThisCaptureRegion || |
| 4587 | CaptureRegion == OMPD_unknown) { |
| 4588 | if (auto *DS = cast_or_null<DeclStmt>(C->getPreInitStmt())) { |
| 4589 | for (Decl *D : DS->decls()) |
| 4590 | MarkVariableReferenced(D->getLocation(), cast<VarDecl>(D)); |
| 4591 | } |
| 4592 | } |
| 4593 | } |
| 4594 | } |
| 4595 | if (ThisCaptureRegion == OMPD_target) { |
| 4596 | // Capture allocator traits in the target region. They are used implicitly |
| 4597 | // and, thus, are not captured by default. |
| 4598 | for (OMPClause *C : Clauses) { |
| 4599 | if (const auto *UAC = dyn_cast<OMPUsesAllocatorsClause>(C)) { |
| 4600 | for (unsigned I = 0, End = UAC->getNumberOfAllocators(); I < End; |
| 4601 | ++I) { |
| 4602 | OMPUsesAllocatorsClause::Data D = UAC->getAllocatorData(I); |
| 4603 | if (Expr *E = D.AllocatorTraits) |
| 4604 | MarkDeclarationsReferencedInExpr(E); |
| 4605 | } |
| 4606 | continue; |
| 4607 | } |
| 4608 | } |
| 4609 | } |
| 4610 | if (ThisCaptureRegion == OMPD_parallel) { |
| 4611 | // Capture temp arrays for inscan reductions and locals in aligned |
| 4612 | // clauses. |
| 4613 | for (OMPClause *C : Clauses) { |
| 4614 | if (auto *RC = dyn_cast<OMPReductionClause>(C)) { |
| 4615 | if (RC->getModifier() != OMPC_REDUCTION_inscan) |
| 4616 | continue; |
| 4617 | for (Expr *E : RC->copy_array_temps()) |
| 4618 | MarkDeclarationsReferencedInExpr(E); |
| 4619 | } |
| 4620 | if (auto *AC = dyn_cast<OMPAlignedClause>(C)) { |
| 4621 | for (Expr *E : AC->varlists()) |
| 4622 | MarkDeclarationsReferencedInExpr(E); |
| 4623 | } |
| 4624 | } |
| 4625 | } |
| 4626 | if (++CompletedRegions == CaptureRegions.size()) |
| 4627 | DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack )->setBodyComplete(); |
| 4628 | SR = ActOnCapturedRegionEnd(SR.get()); |
| 4629 | } |
| 4630 | return SR; |
| 4631 | } |
| 4632 | |
| 4633 | static bool checkCancelRegion(Sema &SemaRef, OpenMPDirectiveKind CurrentRegion, |
| 4634 | OpenMPDirectiveKind CancelRegion, |
| 4635 | SourceLocation StartLoc) { |
| 4636 | // CancelRegion is only needed for cancel and cancellation_point. |
| 4637 | if (CurrentRegion != OMPD_cancel && CurrentRegion != OMPD_cancellation_point) |
| 4638 | return false; |
| 4639 | |
| 4640 | if (CancelRegion == OMPD_parallel || CancelRegion == OMPD_for || |
| 4641 | CancelRegion == OMPD_sections || CancelRegion == OMPD_taskgroup) |
| 4642 | return false; |
| 4643 | |
| 4644 | SemaRef.Diag(StartLoc, diag::err_omp_wrong_cancel_region) |
| 4645 | << getOpenMPDirectiveName(CancelRegion); |
| 4646 | return true; |
| 4647 | } |
| 4648 | |
| 4649 | static bool checkNestingOfRegions(Sema &SemaRef, const DSAStackTy *Stack, |
| 4650 | OpenMPDirectiveKind CurrentRegion, |
| 4651 | const DeclarationNameInfo &CurrentName, |
| 4652 | OpenMPDirectiveKind CancelRegion, |
| 4653 | SourceLocation StartLoc) { |
| 4654 | if (Stack->getCurScope()) { |
| 4655 | OpenMPDirectiveKind ParentRegion = Stack->getParentDirective(); |
| 4656 | OpenMPDirectiveKind OffendingRegion = ParentRegion; |
| 4657 | bool NestingProhibited = false; |
| 4658 | bool CloseNesting = true; |
| 4659 | bool OrphanSeen = false; |
| 4660 | enum { |
| 4661 | NoRecommend, |
| 4662 | ShouldBeInParallelRegion, |
| 4663 | ShouldBeInOrderedRegion, |
| 4664 | ShouldBeInTargetRegion, |
| 4665 | ShouldBeInTeamsRegion, |
| 4666 | ShouldBeInLoopSimdRegion, |
| 4667 | } Recommend = NoRecommend; |
| 4668 | if (isOpenMPSimdDirective(ParentRegion) && |
| 4669 | ((SemaRef.LangOpts.OpenMP <= 45 && CurrentRegion != OMPD_ordered) || |
| 4670 | (SemaRef.LangOpts.OpenMP >= 50 && CurrentRegion != OMPD_ordered && |
| 4671 | CurrentRegion != OMPD_simd && CurrentRegion != OMPD_atomic && |
| 4672 | CurrentRegion != OMPD_scan))) { |
| 4673 | // OpenMP [2.16, Nesting of Regions] |
| 4674 | // OpenMP constructs may not be nested inside a simd region. |
| 4675 | // OpenMP [2.8.1,simd Construct, Restrictions] |
| 4676 | // An ordered construct with the simd clause is the only OpenMP |
| 4677 | // construct that can appear in the simd region. |
| 4678 | // Allowing a SIMD construct nested in another SIMD construct is an |
| 4679 | // extension. The OpenMP 4.5 spec does not allow it. Issue a warning |
| 4680 | // message. |
| 4681 | // OpenMP 5.0 [2.9.3.1, simd Construct, Restrictions] |
| 4682 | // The only OpenMP constructs that can be encountered during execution of |
| 4683 | // a simd region are the atomic construct, the loop construct, the simd |
| 4684 | // construct and the ordered construct with the simd clause. |
| 4685 | SemaRef.Diag(StartLoc, (CurrentRegion != OMPD_simd) |
| 4686 | ? diag::err_omp_prohibited_region_simd |
| 4687 | : diag::warn_omp_nesting_simd) |
| 4688 | << (SemaRef.LangOpts.OpenMP >= 50 ? 1 : 0); |
| 4689 | return CurrentRegion != OMPD_simd; |
| 4690 | } |
| 4691 | if (ParentRegion == OMPD_atomic) { |
| 4692 | // OpenMP [2.16, Nesting of Regions] |
| 4693 | // OpenMP constructs may not be nested inside an atomic region. |
| 4694 | SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region_atomic); |
| 4695 | return true; |
| 4696 | } |
| 4697 | if (CurrentRegion == OMPD_section) { |
| 4698 | // OpenMP [2.7.2, sections Construct, Restrictions] |
| 4699 | // Orphaned section directives are prohibited. That is, the section |
| 4700 | // directives must appear within the sections construct and must not be |
| 4701 | // encountered elsewhere in the sections region. |
| 4702 | if (ParentRegion != OMPD_sections && |
| 4703 | ParentRegion != OMPD_parallel_sections) { |
| 4704 | SemaRef.Diag(StartLoc, diag::err_omp_orphaned_section_directive) |
| 4705 | << (ParentRegion != OMPD_unknown) |
| 4706 | << getOpenMPDirectiveName(ParentRegion); |
| 4707 | return true; |
| 4708 | } |
| 4709 | return false; |
| 4710 | } |
| 4711 | // Allow some constructs (except teams and cancellation constructs) to be |
| 4712 | // orphaned (they could be used in functions, called from OpenMP regions |
| 4713 | // with the required preconditions). |
| 4714 | if (ParentRegion == OMPD_unknown && |
| 4715 | !isOpenMPNestingTeamsDirective(CurrentRegion) && |
| 4716 | CurrentRegion != OMPD_cancellation_point && |
| 4717 | CurrentRegion != OMPD_cancel && CurrentRegion != OMPD_scan) |
| 4718 | return false; |
| 4719 | if (CurrentRegion == OMPD_cancellation_point || |
| 4720 | CurrentRegion == OMPD_cancel) { |
| 4721 | // OpenMP [2.16, Nesting of Regions] |
| 4722 | // A cancellation point construct for which construct-type-clause is |
| 4723 | // taskgroup must be nested inside a task construct. A cancellation |
| 4724 | // point construct for which construct-type-clause is not taskgroup must |
| 4725 | // be closely nested inside an OpenMP construct that matches the type |
| 4726 | // specified in construct-type-clause. |
| 4727 | // A cancel construct for which construct-type-clause is taskgroup must be |
| 4728 | // nested inside a task construct. A cancel construct for which |
| 4729 | // construct-type-clause is not taskgroup must be closely nested inside an |
| 4730 | // OpenMP construct that matches the type specified in |
| 4731 | // construct-type-clause. |
| 4732 | NestingProhibited = |
| 4733 | !((CancelRegion == OMPD_parallel && |
| 4734 | (ParentRegion == OMPD_parallel || |
| 4735 | ParentRegion == OMPD_target_parallel)) || |
| 4736 | (CancelRegion == OMPD_for && |
| 4737 | (ParentRegion == OMPD_for || ParentRegion == OMPD_parallel_for || |
| 4738 | ParentRegion == OMPD_target_parallel_for || |
| 4739 | ParentRegion == OMPD_distribute_parallel_for || |
| 4740 | ParentRegion == OMPD_teams_distribute_parallel_for || |
| 4741 | ParentRegion == OMPD_target_teams_distribute_parallel_for)) || |
| 4742 | (CancelRegion == OMPD_taskgroup && |
| 4743 | (ParentRegion == OMPD_task || |
| 4744 | (SemaRef.getLangOpts().OpenMP >= 50 && |
| 4745 | (ParentRegion == OMPD_taskloop || |
| 4746 | ParentRegion == OMPD_master_taskloop || |
| 4747 | ParentRegion == OMPD_parallel_master_taskloop)))) || |
| 4748 | (CancelRegion == OMPD_sections && |
| 4749 | (ParentRegion == OMPD_section || ParentRegion == OMPD_sections || |
| 4750 | ParentRegion == OMPD_parallel_sections))); |
| 4751 | OrphanSeen = ParentRegion == OMPD_unknown; |
| 4752 | } else if (CurrentRegion == OMPD_master || CurrentRegion == OMPD_masked) { |
| 4753 | // OpenMP 5.1 [2.22, Nesting of Regions] |
| 4754 | // A masked region may not be closely nested inside a worksharing, loop, |
| 4755 | // atomic, task, or taskloop region. |
| 4756 | NestingProhibited = isOpenMPWorksharingDirective(ParentRegion) || |
| 4757 | isOpenMPTaskingDirective(ParentRegion); |
| 4758 | } else if (CurrentRegion == OMPD_critical && CurrentName.getName()) { |
| 4759 | // OpenMP [2.16, Nesting of Regions] |
| 4760 | // A critical region may not be nested (closely or otherwise) inside a |
| 4761 | // critical region with the same name. Note that this restriction is not |
| 4762 | // sufficient to prevent deadlock. |
| 4763 | SourceLocation PreviousCriticalLoc; |
| 4764 | bool DeadLock = Stack->hasDirective( |
| 4765 | [CurrentName, &PreviousCriticalLoc](OpenMPDirectiveKind K, |
| 4766 | const DeclarationNameInfo &DNI, |
| 4767 | SourceLocation Loc) { |
| 4768 | if (K == OMPD_critical && DNI.getName() == CurrentName.getName()) { |
| 4769 | PreviousCriticalLoc = Loc; |
| 4770 | return true; |
| 4771 | } |
| 4772 | return false; |
| 4773 | }, |
| 4774 | false /* skip top directive */); |
| 4775 | if (DeadLock) { |
| 4776 | SemaRef.Diag(StartLoc, |
| 4777 | diag::err_omp_prohibited_region_critical_same_name) |
| 4778 | << CurrentName.getName(); |
| 4779 | if (PreviousCriticalLoc.isValid()) |
| 4780 | SemaRef.Diag(PreviousCriticalLoc, |
| 4781 | diag::note_omp_previous_critical_region); |
| 4782 | return true; |
| 4783 | } |
| 4784 | } else if (CurrentRegion == OMPD_barrier) { |
| 4785 | // OpenMP 5.1 [2.22, Nesting of Regions] |
| 4786 | // A barrier region may not be closely nested inside a worksharing, loop, |
| 4787 | // task, taskloop, critical, ordered, atomic, or masked region. |
| 4788 | NestingProhibited = |
| 4789 | isOpenMPWorksharingDirective(ParentRegion) || |
| 4790 | isOpenMPTaskingDirective(ParentRegion) || |
| 4791 | ParentRegion == OMPD_master || ParentRegion == OMPD_masked || |
| 4792 | ParentRegion == OMPD_parallel_master || |
| 4793 | ParentRegion == OMPD_critical || ParentRegion == OMPD_ordered; |
| 4794 | } else if (isOpenMPWorksharingDirective(CurrentRegion) && |
| 4795 | !isOpenMPParallelDirective(CurrentRegion) && |
| 4796 | !isOpenMPTeamsDirective(CurrentRegion)) { |
| 4797 | // OpenMP 5.1 [2.22, Nesting of Regions] |
| 4798 | // A loop region that binds to a parallel region or a worksharing region |
| 4799 | // may not be closely nested inside a worksharing, loop, task, taskloop, |
| 4800 | // critical, ordered, atomic, or masked region. |
| 4801 | NestingProhibited = |
| 4802 | isOpenMPWorksharingDirective(ParentRegion) || |
| 4803 | isOpenMPTaskingDirective(ParentRegion) || |
| 4804 | ParentRegion == OMPD_master || ParentRegion == OMPD_masked || |
| 4805 | ParentRegion == OMPD_parallel_master || |
| 4806 | ParentRegion == OMPD_critical || ParentRegion == OMPD_ordered; |
| 4807 | Recommend = ShouldBeInParallelRegion; |
| 4808 | } else if (CurrentRegion == OMPD_ordered) { |
| 4809 | // OpenMP [2.16, Nesting of Regions] |
| 4810 | // An ordered region may not be closely nested inside a critical, |
| 4811 | // atomic, or explicit task region. |
| 4812 | // An ordered region must be closely nested inside a loop region (or |
| 4813 | // parallel loop region) with an ordered clause. |
| 4814 | // OpenMP [2.8.1,simd Construct, Restrictions] |
| 4815 | // An ordered construct with the simd clause is the only OpenMP construct |
| 4816 | // that can appear in the simd region. |
| 4817 | NestingProhibited = ParentRegion == OMPD_critical || |
| 4818 | isOpenMPTaskingDirective(ParentRegion) || |
| 4819 | !(isOpenMPSimdDirective(ParentRegion) || |
| 4820 | Stack->isParentOrderedRegion()); |
| 4821 | Recommend = ShouldBeInOrderedRegion; |
| 4822 | } else if (isOpenMPNestingTeamsDirective(CurrentRegion)) { |
| 4823 | // OpenMP [2.16, Nesting of Regions] |
| 4824 | // If specified, a teams construct must be contained within a target |
| 4825 | // construct. |
| 4826 | NestingProhibited = |
| 4827 | (SemaRef.LangOpts.OpenMP <= 45 && ParentRegion != OMPD_target) || |
| 4828 | (SemaRef.LangOpts.OpenMP >= 50 && ParentRegion != OMPD_unknown && |
| 4829 | ParentRegion != OMPD_target); |
| 4830 | OrphanSeen = ParentRegion == OMPD_unknown; |
| 4831 | Recommend = ShouldBeInTargetRegion; |
| 4832 | } else if (CurrentRegion == OMPD_scan) { |
| 4833 | // OpenMP [2.16, Nesting of Regions] |
| 4834 | // If specified, a teams construct must be contained within a target |
| 4835 | // construct. |
| 4836 | NestingProhibited = |
| 4837 | SemaRef.LangOpts.OpenMP < 50 || |
| 4838 | (ParentRegion != OMPD_simd && ParentRegion != OMPD_for && |
| 4839 | ParentRegion != OMPD_for_simd && ParentRegion != OMPD_parallel_for && |
| 4840 | ParentRegion != OMPD_parallel_for_simd); |
| 4841 | OrphanSeen = ParentRegion == OMPD_unknown; |
| 4842 | Recommend = ShouldBeInLoopSimdRegion; |
| 4843 | } |
| 4844 | if (!NestingProhibited && |
| 4845 | !isOpenMPTargetExecutionDirective(CurrentRegion) && |
| 4846 | !isOpenMPTargetDataManagementDirective(CurrentRegion) && |
| 4847 | (ParentRegion == OMPD_teams || ParentRegion == OMPD_target_teams)) { |
| 4848 | // OpenMP [2.16, Nesting of Regions] |
| 4849 | // distribute, parallel, parallel sections, parallel workshare, and the |
| 4850 | // parallel loop and parallel loop SIMD constructs are the only OpenMP |
| 4851 | // constructs that can be closely nested in the teams region. |
| 4852 | NestingProhibited = !isOpenMPParallelDirective(CurrentRegion) && |
| 4853 | !isOpenMPDistributeDirective(CurrentRegion); |
| 4854 | Recommend = ShouldBeInParallelRegion; |
| 4855 | } |
| 4856 | if (!NestingProhibited && |
| 4857 | isOpenMPNestingDistributeDirective(CurrentRegion)) { |
| 4858 | // OpenMP 4.5 [2.17 Nesting of Regions] |
| 4859 | // The region associated with the distribute construct must be strictly |
| 4860 | // nested inside a teams region |
| 4861 | NestingProhibited = |
| 4862 | (ParentRegion != OMPD_teams && ParentRegion != OMPD_target_teams); |
| 4863 | Recommend = ShouldBeInTeamsRegion; |
| 4864 | } |
| 4865 | if (!NestingProhibited && |
| 4866 | (isOpenMPTargetExecutionDirective(CurrentRegion) || |
| 4867 | isOpenMPTargetDataManagementDirective(CurrentRegion))) { |
| 4868 | // OpenMP 4.5 [2.17 Nesting of Regions] |
| 4869 | // If a target, target update, target data, target enter data, or |
| 4870 | // target exit data construct is encountered during execution of a |
| 4871 | // target region, the behavior is unspecified. |
| 4872 | NestingProhibited = Stack->hasDirective( |
| 4873 | [&OffendingRegion](OpenMPDirectiveKind K, const DeclarationNameInfo &, |
| 4874 | SourceLocation) { |
| 4875 | if (isOpenMPTargetExecutionDirective(K)) { |
| 4876 | OffendingRegion = K; |
| 4877 | return true; |
| 4878 | } |
| 4879 | return false; |
| 4880 | }, |
| 4881 | false /* don't skip top directive */); |
| 4882 | CloseNesting = false; |
| 4883 | } |
| 4884 | if (NestingProhibited) { |
| 4885 | if (OrphanSeen) { |
| 4886 | SemaRef.Diag(StartLoc, diag::err_omp_orphaned_device_directive) |
| 4887 | << getOpenMPDirectiveName(CurrentRegion) << Recommend; |
| 4888 | } else { |
| 4889 | SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region) |
| 4890 | << CloseNesting << getOpenMPDirectiveName(OffendingRegion) |
| 4891 | << Recommend << getOpenMPDirectiveName(CurrentRegion); |
| 4892 | } |
| 4893 | return true; |
| 4894 | } |
| 4895 | } |
| 4896 | return false; |
| 4897 | } |
| 4898 | |
| 4899 | struct Kind2Unsigned { |
| 4900 | using argument_type = OpenMPDirectiveKind; |
| 4901 | unsigned operator()(argument_type DK) { return unsigned(DK); } |
| 4902 | }; |
| 4903 | static bool checkIfClauses(Sema &S, OpenMPDirectiveKind Kind, |
| 4904 | ArrayRef<OMPClause *> Clauses, |
| 4905 | ArrayRef<OpenMPDirectiveKind> AllowedNameModifiers) { |
| 4906 | bool ErrorFound = false; |
| 4907 | unsigned NamedModifiersNumber = 0; |
| 4908 | llvm::IndexedMap<const OMPIfClause *, Kind2Unsigned> FoundNameModifiers; |
| 4909 | FoundNameModifiers.resize(llvm::omp::Directive_enumSize + 1); |
| 4910 | SmallVector<SourceLocation, 4> NameModifierLoc; |
| 4911 | for (const OMPClause *C : Clauses) { |
| 4912 | if (const auto *IC = dyn_cast_or_null<OMPIfClause>(C)) { |
| 4913 | // At most one if clause without a directive-name-modifier can appear on |
| 4914 | // the directive. |
| 4915 | OpenMPDirectiveKind CurNM = IC->getNameModifier(); |
| 4916 | if (FoundNameModifiers[CurNM]) { |
| 4917 | S.Diag(C->getBeginLoc(), diag::err_omp_more_one_clause) |
| 4918 | << getOpenMPDirectiveName(Kind) << getOpenMPClauseName(OMPC_if) |
| 4919 | << (CurNM != OMPD_unknown) << getOpenMPDirectiveName(CurNM); |
| 4920 | ErrorFound = true; |
| 4921 | } else if (CurNM != OMPD_unknown) { |
| 4922 | NameModifierLoc.push_back(IC->getNameModifierLoc()); |
| 4923 | ++NamedModifiersNumber; |
| 4924 | } |
| 4925 | FoundNameModifiers[CurNM] = IC; |
| 4926 | if (CurNM == OMPD_unknown) |
| 4927 | continue; |
| 4928 | // Check if the specified name modifier is allowed for the current |
| 4929 | // directive. |
| 4930 | // At most one if clause with the particular directive-name-modifier can |
| 4931 | // appear on the directive. |
| 4932 | bool MatchFound = false; |
| 4933 | for (auto NM : AllowedNameModifiers) { |
| 4934 | if (CurNM == NM) { |
| 4935 | MatchFound = true; |
| 4936 | break; |
| 4937 | } |
| 4938 | } |
| 4939 | if (!MatchFound) { |
| 4940 | S.Diag(IC->getNameModifierLoc(), |
| 4941 | diag::err_omp_wrong_if_directive_name_modifier) |
| 4942 | << getOpenMPDirectiveName(CurNM) << getOpenMPDirectiveName(Kind); |
| 4943 | ErrorFound = true; |
| 4944 | } |
| 4945 | } |
| 4946 | } |
| 4947 | // If any if clause on the directive includes a directive-name-modifier then |
| 4948 | // all if clauses on the directive must include a directive-name-modifier. |
| 4949 | if (FoundNameModifiers[OMPD_unknown] && NamedModifiersNumber > 0) { |
| 4950 | if (NamedModifiersNumber == AllowedNameModifiers.size()) { |
| 4951 | S.Diag(FoundNameModifiers[OMPD_unknown]->getBeginLoc(), |
| 4952 | diag::err_omp_no_more_if_clause); |
| 4953 | } else { |
| 4954 | std::string Values; |
| 4955 | std::string Sep(", "); |
| 4956 | unsigned AllowedCnt = 0; |
| 4957 | unsigned TotalAllowedNum = |
| 4958 | AllowedNameModifiers.size() - NamedModifiersNumber; |
| 4959 | for (unsigned Cnt = 0, End = AllowedNameModifiers.size(); Cnt < End; |
| 4960 | ++Cnt) { |
| 4961 | OpenMPDirectiveKind NM = AllowedNameModifiers[Cnt]; |
| 4962 | if (!FoundNameModifiers[NM]) { |
| 4963 | Values += "'"; |
| 4964 | Values += getOpenMPDirectiveName(NM); |
| 4965 | Values += "'"; |
| 4966 | if (AllowedCnt + 2 == TotalAllowedNum) |
| 4967 | Values += " or "; |
| 4968 | else if (AllowedCnt + 1 != TotalAllowedNum) |
| 4969 | Values += Sep; |
| 4970 | ++AllowedCnt; |
| 4971 | } |
| 4972 | } |
| 4973 | S.Diag(FoundNameModifiers[OMPD_unknown]->getCondition()->getBeginLoc(), |
| 4974 | diag::err_omp_unnamed_if_clause) |
| 4975 | << (TotalAllowedNum > 1) << Values; |
| 4976 | } |
| 4977 | for (SourceLocation Loc : NameModifierLoc) { |
| 4978 | S.Diag(Loc, diag::note_omp_previous_named_if_clause); |
| 4979 | } |
| 4980 | ErrorFound = true; |
| 4981 | } |
| 4982 | return ErrorFound; |
| 4983 | } |
| 4984 | |
| 4985 | static std::pair<ValueDecl *, bool> getPrivateItem(Sema &S, Expr *&RefExpr, |
| 4986 | SourceLocation &ELoc, |
| 4987 | SourceRange &ERange, |
| 4988 | bool AllowArraySection) { |
| 4989 | if (RefExpr->isTypeDependent() || RefExpr->isValueDependent() || |
| 4990 | RefExpr->containsUnexpandedParameterPack()) |
| 4991 | return std::make_pair(nullptr, true); |
| 4992 | |
| 4993 | // OpenMP [3.1, C/C++] |
| 4994 | // A list item is a variable name. |
| 4995 | // OpenMP [2.9.3.3, Restrictions, p.1] |
| 4996 | // A variable that is part of another variable (as an array or |
| 4997 | // structure element) cannot appear in a private clause. |
| 4998 | RefExpr = RefExpr->IgnoreParens(); |
| 4999 | enum { |
| 5000 | NoArrayExpr = -1, |
| 5001 | ArraySubscript = 0, |
| 5002 | OMPArraySection = 1 |
| 5003 | } IsArrayExpr = NoArrayExpr; |
| 5004 | if (AllowArraySection) { |
| 5005 | if (auto *ASE = dyn_cast_or_null<ArraySubscriptExpr>(RefExpr)) { |
| 5006 | Expr *Base = ASE->getBase()->IgnoreParenImpCasts(); |
| 5007 | while (auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base)) |
| 5008 | Base = TempASE->getBase()->IgnoreParenImpCasts(); |
| 5009 | RefExpr = Base; |
| 5010 | IsArrayExpr = ArraySubscript; |
| 5011 | } else if (auto *OASE = dyn_cast_or_null<OMPArraySectionExpr>(RefExpr)) { |
| 5012 | Expr *Base = OASE->getBase()->IgnoreParenImpCasts(); |
| 5013 | while (auto *TempOASE = dyn_cast<OMPArraySectionExpr>(Base)) |
| 5014 | Base = TempOASE->getBase()->IgnoreParenImpCasts(); |
| 5015 | while (auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base)) |
| 5016 | Base = TempASE->getBase()->IgnoreParenImpCasts(); |
| 5017 | RefExpr = Base; |
| 5018 | IsArrayExpr = OMPArraySection; |
| 5019 | } |
| 5020 | } |
| 5021 | ELoc = RefExpr->getExprLoc(); |
| 5022 | ERange = RefExpr->getSourceRange(); |
| 5023 | RefExpr = RefExpr->IgnoreParenImpCasts(); |
| 5024 | auto *DE = dyn_cast_or_null<DeclRefExpr>(RefExpr); |
| 5025 | auto *ME = dyn_cast_or_null<MemberExpr>(RefExpr); |
| 5026 | if ((!DE || !isa<VarDecl>(DE->getDecl())) && |
| 5027 | (S.getCurrentThisType().isNull() || !ME || |
| 5028 | !isa<CXXThisExpr>(ME->getBase()->IgnoreParenImpCasts()) || |
| 5029 | !isa<FieldDecl>(ME->getMemberDecl()))) { |
| 5030 | if (IsArrayExpr != NoArrayExpr) { |
| 5031 | S.Diag(ELoc, diag::err_omp_expected_base_var_name) << IsArrayExpr |
| 5032 | << ERange; |
| 5033 | } else { |
| 5034 | S.Diag(ELoc, |
| 5035 | AllowArraySection |
| 5036 | ? diag::err_omp_expected_var_name_member_expr_or_array_item |
| 5037 | : diag::err_omp_expected_var_name_member_expr) |
| 5038 | << (S.getCurrentThisType().isNull() ? 0 : 1) << ERange; |
| 5039 | } |
| 5040 | return std::make_pair(nullptr, false); |
| 5041 | } |
| 5042 | return std::make_pair( |
| 5043 | getCanonicalDecl(DE ? DE->getDecl() : ME->getMemberDecl()), false); |
| 5044 | } |
| 5045 | |
| 5046 | namespace { |
| 5047 | /// Checks if the allocator is used in uses_allocators clause to be allowed in |
| 5048 | /// target regions. |
| 5049 | class AllocatorChecker final : public ConstStmtVisitor<AllocatorChecker, bool> { |
| 5050 | DSAStackTy *S = nullptr; |
| 5051 | |
| 5052 | public: |
| 5053 | bool VisitDeclRefExpr(const DeclRefExpr *E) { |
| 5054 | return S->isUsesAllocatorsDecl(E->getDecl()) |
| 5055 | .getValueOr( |
| 5056 | DSAStackTy::UsesAllocatorsDeclKind::AllocatorTrait) == |
| 5057 | DSAStackTy::UsesAllocatorsDeclKind::AllocatorTrait; |
| 5058 | } |
| 5059 | bool VisitStmt(const Stmt *S) { |
| 5060 | for (const Stmt *Child : S->children()) { |
| 5061 | if (Child && Visit(Child)) |
| 5062 | return true; |
| 5063 | } |
| 5064 | return false; |
| 5065 | } |
| 5066 | explicit AllocatorChecker(DSAStackTy *S) : S(S) {} |
| 5067 | }; |
| 5068 | } // namespace |
| 5069 | |
| 5070 | static void checkAllocateClauses(Sema &S, DSAStackTy *Stack, |
| 5071 | ArrayRef<OMPClause *> Clauses) { |
| 5072 | assert(!S.CurContext->isDependentContext() &&((void)0) |
| 5073 | "Expected non-dependent context.")((void)0); |
| 5074 | auto AllocateRange = |
| 5075 | llvm::make_filter_range(Clauses, OMPAllocateClause::classof); |
| 5076 | llvm::DenseMap<CanonicalDeclPtr<Decl>, CanonicalDeclPtr<VarDecl>> |
| 5077 | DeclToCopy; |
| 5078 | auto PrivateRange = llvm::make_filter_range(Clauses, [](const OMPClause *C) { |
| 5079 | return isOpenMPPrivate(C->getClauseKind()); |
| 5080 | }); |
| 5081 | for (OMPClause *Cl : PrivateRange) { |
| 5082 | MutableArrayRef<Expr *>::iterator I, It, Et; |
| 5083 | if (Cl->getClauseKind() == OMPC_private) { |
| 5084 | auto *PC = cast<OMPPrivateClause>(Cl); |
| 5085 | I = PC->private_copies().begin(); |
| 5086 | It = PC->varlist_begin(); |
| 5087 | Et = PC->varlist_end(); |
| 5088 | } else if (Cl->getClauseKind() == OMPC_firstprivate) { |
| 5089 | auto *PC = cast<OMPFirstprivateClause>(Cl); |
| 5090 | I = PC->private_copies().begin(); |
| 5091 | It = PC->varlist_begin(); |
| 5092 | Et = PC->varlist_end(); |
| 5093 | } else if (Cl->getClauseKind() == OMPC_lastprivate) { |
| 5094 | auto *PC = cast<OMPLastprivateClause>(Cl); |
| 5095 | I = PC->private_copies().begin(); |
| 5096 | It = PC->varlist_begin(); |
| 5097 | Et = PC->varlist_end(); |
| 5098 | } else if (Cl->getClauseKind() == OMPC_linear) { |
| 5099 | auto *PC = cast<OMPLinearClause>(Cl); |
| 5100 | I = PC->privates().begin(); |
| 5101 | It = PC->varlist_begin(); |
| 5102 | Et = PC->varlist_end(); |
| 5103 | } else if (Cl->getClauseKind() == OMPC_reduction) { |
| 5104 | auto *PC = cast<OMPReductionClause>(Cl); |
| 5105 | I = PC->privates().begin(); |
| 5106 | It = PC->varlist_begin(); |
| 5107 | Et = PC->varlist_end(); |
| 5108 | } else if (Cl->getClauseKind() == OMPC_task_reduction) { |
| 5109 | auto *PC = cast<OMPTaskReductionClause>(Cl); |
| 5110 | I = PC->privates().begin(); |
| 5111 | It = PC->varlist_begin(); |
| 5112 | Et = PC->varlist_end(); |
| 5113 | } else if (Cl->getClauseKind() == OMPC_in_reduction) { |
| 5114 | auto *PC = cast<OMPInReductionClause>(Cl); |
| 5115 | I = PC->privates().begin(); |
| 5116 | It = PC->varlist_begin(); |
| 5117 | Et = PC->varlist_end(); |
| 5118 | } else { |
| 5119 | llvm_unreachable("Expected private clause.")__builtin_unreachable(); |
| 5120 | } |
| 5121 | for (Expr *E : llvm::make_range(It, Et)) { |
| 5122 | if (!*I) { |
| 5123 | ++I; |
| 5124 | continue; |
| 5125 | } |
| 5126 | SourceLocation ELoc; |
| 5127 | SourceRange ERange; |
| 5128 | Expr *SimpleRefExpr = E; |
| 5129 | auto Res = getPrivateItem(S, SimpleRefExpr, ELoc, ERange, |
| 5130 | /*AllowArraySection=*/true); |
| 5131 | DeclToCopy.try_emplace(Res.first, |
| 5132 | cast<VarDecl>(cast<DeclRefExpr>(*I)->getDecl())); |
| 5133 | ++I; |
| 5134 | } |
| 5135 | } |
| 5136 | for (OMPClause *C : AllocateRange) { |
| 5137 | auto *AC = cast<OMPAllocateClause>(C); |
| 5138 | if (S.getLangOpts().OpenMP >= 50 && |
| 5139 | !Stack->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>() && |
| 5140 | isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()) && |
| 5141 | AC->getAllocator()) { |
| 5142 | Expr *Allocator = AC->getAllocator(); |
| 5143 | // OpenMP, 2.12.5 target Construct |
| 5144 | // Memory allocators that do not appear in a uses_allocators clause cannot |
| 5145 | // appear as an allocator in an allocate clause or be used in the target |
| 5146 | // region unless a requires directive with the dynamic_allocators clause |
| 5147 | // is present in the same compilation unit. |
| 5148 | AllocatorChecker Checker(Stack); |
| 5149 | if (Checker.Visit(Allocator)) |
| 5150 | S.Diag(Allocator->getExprLoc(), |
| 5151 | diag::err_omp_allocator_not_in_uses_allocators) |
| 5152 | << Allocator->getSourceRange(); |
| 5153 | } |
| 5154 | OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind = |
| 5155 | getAllocatorKind(S, Stack, AC->getAllocator()); |
| 5156 | // OpenMP, 2.11.4 allocate Clause, Restrictions. |
| 5157 | // For task, taskloop or target directives, allocation requests to memory |
| 5158 | // allocators with the trait access set to thread result in unspecified |
| 5159 | // behavior. |
| 5160 | if (AllocatorKind == OMPAllocateDeclAttr::OMPThreadMemAlloc && |
| 5161 | (isOpenMPTaskingDirective(Stack->getCurrentDirective()) || |
| 5162 | isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()))) { |
| 5163 | S.Diag(AC->getAllocator()->getExprLoc(), |
| 5164 | diag::warn_omp_allocate_thread_on_task_target_directive) |
| 5165 | << getOpenMPDirectiveName(Stack->getCurrentDirective()); |
| 5166 | } |
| 5167 | for (Expr *E : AC->varlists()) { |
| 5168 | SourceLocation ELoc; |
| 5169 | SourceRange ERange; |
| 5170 | Expr *SimpleRefExpr = E; |
| 5171 | auto Res = getPrivateItem(S, SimpleRefExpr, ELoc, ERange); |
| 5172 | ValueDecl *VD = Res.first; |
| 5173 | DSAStackTy::DSAVarData Data = Stack->getTopDSA(VD, /*FromParent=*/false); |
| 5174 | if (!isOpenMPPrivate(Data.CKind)) { |
| 5175 | S.Diag(E->getExprLoc(), |
| 5176 | diag::err_omp_expected_private_copy_for_allocate); |
| 5177 | continue; |
| 5178 | } |
| 5179 | VarDecl *PrivateVD = DeclToCopy[VD]; |
| 5180 | if (checkPreviousOMPAllocateAttribute(S, Stack, E, PrivateVD, |
| 5181 | AllocatorKind, AC->getAllocator())) |
| 5182 | continue; |
| 5183 | applyOMPAllocateAttribute(S, PrivateVD, AllocatorKind, AC->getAllocator(), |
| 5184 | E->getSourceRange()); |
| 5185 | } |
| 5186 | } |
| 5187 | } |
| 5188 | |
| 5189 | namespace { |
| 5190 | /// Rewrite statements and expressions for Sema \p Actions CurContext. |
| 5191 | /// |
| 5192 | /// Used to wrap already parsed statements/expressions into a new CapturedStmt |
| 5193 | /// context. DeclRefExpr used inside the new context are changed to refer to the |
| 5194 | /// captured variable instead. |
| 5195 | class CaptureVars : public TreeTransform<CaptureVars> { |
| 5196 | using BaseTransform = TreeTransform<CaptureVars>; |
| 5197 | |
| 5198 | public: |
| 5199 | CaptureVars(Sema &Actions) : BaseTransform(Actions) {} |
| 5200 | |
| 5201 | bool AlwaysRebuild() { return true; } |
| 5202 | }; |
| 5203 | } // namespace |
| 5204 | |
| 5205 | static VarDecl *precomputeExpr(Sema &Actions, |
| 5206 | SmallVectorImpl<Stmt *> &BodyStmts, Expr *E, |
| 5207 | StringRef Name) { |
| 5208 | Expr *NewE = AssertSuccess(CaptureVars(Actions).TransformExpr(E)); |
| 5209 | VarDecl *NewVar = buildVarDecl(Actions, {}, NewE->getType(), Name, nullptr, |
| 5210 | dyn_cast<DeclRefExpr>(E->IgnoreImplicit())); |
| 5211 | auto *NewDeclStmt = cast<DeclStmt>(AssertSuccess( |
| 5212 | Actions.ActOnDeclStmt(Actions.ConvertDeclToDeclGroup(NewVar), {}, {}))); |
| 5213 | Actions.AddInitializerToDecl(NewDeclStmt->getSingleDecl(), NewE, false); |
| 5214 | BodyStmts.push_back(NewDeclStmt); |
| 5215 | return NewVar; |
| 5216 | } |
| 5217 | |
| 5218 | /// Create a closure that computes the number of iterations of a loop. |
| 5219 | /// |
| 5220 | /// \param Actions The Sema object. |
| 5221 | /// \param LogicalTy Type for the logical iteration number. |
| 5222 | /// \param Rel Comparison operator of the loop condition. |
| 5223 | /// \param StartExpr Value of the loop counter at the first iteration. |
| 5224 | /// \param StopExpr Expression the loop counter is compared against in the loop |
| 5225 | /// condition. \param StepExpr Amount of increment after each iteration. |
| 5226 | /// |
| 5227 | /// \return Closure (CapturedStmt) of the distance calculation. |
| 5228 | static CapturedStmt *buildDistanceFunc(Sema &Actions, QualType LogicalTy, |
| 5229 | BinaryOperator::Opcode Rel, |
| 5230 | Expr *StartExpr, Expr *StopExpr, |
| 5231 | Expr *StepExpr) { |
| 5232 | ASTContext &Ctx = Actions.getASTContext(); |
| 5233 | TypeSourceInfo *LogicalTSI = Ctx.getTrivialTypeSourceInfo(LogicalTy); |
| 5234 | |
| 5235 | // Captured regions currently don't support return values, we use an |
| 5236 | // out-parameter instead. All inputs are implicit captures. |
| 5237 | // TODO: Instead of capturing each DeclRefExpr occurring in |
| 5238 | // StartExpr/StopExpr/Step, these could also be passed as a value capture. |
| 5239 | QualType ResultTy = Ctx.getLValueReferenceType(LogicalTy); |
| 5240 | Sema::CapturedParamNameType Params[] = {{"Distance", ResultTy}, |
| 5241 | {StringRef(), QualType()}}; |
| 5242 | Actions.ActOnCapturedRegionStart({}, nullptr, CR_Default, Params); |
| 5243 | |
| 5244 | Stmt *Body; |
| 5245 | { |
| 5246 | Sema::CompoundScopeRAII CompoundScope(Actions); |
| 5247 | CapturedDecl *CS = cast<CapturedDecl>(Actions.CurContext); |
| 5248 | |
| 5249 | // Get the LValue expression for the result. |
| 5250 | ImplicitParamDecl *DistParam = CS->getParam(0); |
| 5251 | DeclRefExpr *DistRef = Actions.BuildDeclRefExpr( |
| 5252 | DistParam, LogicalTy, VK_LValue, {}, nullptr, nullptr, {}, nullptr); |
| 5253 | |
| 5254 | SmallVector<Stmt *, 4> BodyStmts; |
| 5255 | |
| 5256 | // Capture all referenced variable references. |
| 5257 | // TODO: Instead of computing NewStart/NewStop/NewStep inside the |
| 5258 | // CapturedStmt, we could compute them before and capture the result, to be |
| 5259 | // used jointly with the LoopVar function. |
| 5260 | VarDecl *NewStart = precomputeExpr(Actions, BodyStmts, StartExpr, ".start"); |
| 5261 | VarDecl *NewStop = precomputeExpr(Actions, BodyStmts, StopExpr, ".stop"); |
| 5262 | VarDecl *NewStep = precomputeExpr(Actions, BodyStmts, StepExpr, ".step"); |
| 5263 | auto BuildVarRef = [&](VarDecl *VD) { |
| 5264 | return buildDeclRefExpr(Actions, VD, VD->getType(), {}); |
| 5265 | }; |
| 5266 | |
| 5267 | IntegerLiteral *Zero = IntegerLiteral::Create( |
| 5268 | Ctx, llvm::APInt(Ctx.getIntWidth(LogicalTy), 0), LogicalTy, {}); |
| 5269 | Expr *Dist; |
| 5270 | if (Rel == BO_NE) { |
| 5271 | // When using a != comparison, the increment can be +1 or -1. This can be |
| 5272 | // dynamic at runtime, so we need to check for the direction. |
| 5273 | Expr *IsNegStep = AssertSuccess( |
| 5274 | Actions.BuildBinOp(nullptr, {}, BO_LT, BuildVarRef(NewStep), Zero)); |
| 5275 | |
| 5276 | // Positive increment. |
| 5277 | Expr *ForwardRange = AssertSuccess(Actions.BuildBinOp( |
| 5278 | nullptr, {}, BO_Sub, BuildVarRef(NewStop), BuildVarRef(NewStart))); |
| 5279 | ForwardRange = AssertSuccess( |
| 5280 | Actions.BuildCStyleCastExpr({}, LogicalTSI, {}, ForwardRange)); |
| 5281 | Expr *ForwardDist = AssertSuccess(Actions.BuildBinOp( |
| 5282 | nullptr, {}, BO_Div, ForwardRange, BuildVarRef(NewStep))); |
| 5283 | |
| 5284 | // Negative increment. |
| 5285 | Expr *BackwardRange = AssertSuccess(Actions.BuildBinOp( |
| 5286 | nullptr, {}, BO_Sub, BuildVarRef(NewStart), BuildVarRef(NewStop))); |
| 5287 | BackwardRange = AssertSuccess( |
| 5288 | Actions.BuildCStyleCastExpr({}, LogicalTSI, {}, BackwardRange)); |
| 5289 | Expr *NegIncAmount = AssertSuccess( |
| 5290 | Actions.BuildUnaryOp(nullptr, {}, UO_Minus, BuildVarRef(NewStep))); |
| 5291 | Expr *BackwardDist = AssertSuccess( |
| 5292 | Actions.BuildBinOp(nullptr, {}, BO_Div, BackwardRange, NegIncAmount)); |
| 5293 | |
| 5294 | // Use the appropriate case. |
| 5295 | Dist = AssertSuccess(Actions.ActOnConditionalOp( |
| 5296 | {}, {}, IsNegStep, BackwardDist, ForwardDist)); |
| 5297 | } else { |
| 5298 | assert((Rel == BO_LT || Rel == BO_LE || Rel == BO_GE || Rel == BO_GT) &&((void)0) |
| 5299 | "Expected one of these relational operators")((void)0); |
| 5300 | |
| 5301 | // We can derive the direction from any other comparison operator. It is |
| 5302 | // non well-formed OpenMP if Step increments/decrements in the other |
| 5303 | // directions. Whether at least the first iteration passes the loop |
| 5304 | // condition. |
| 5305 | Expr *HasAnyIteration = AssertSuccess(Actions.BuildBinOp( |
| 5306 | nullptr, {}, Rel, BuildVarRef(NewStart), BuildVarRef(NewStop))); |
| 5307 | |
| 5308 | // Compute the range between first and last counter value. |
| 5309 | Expr *Range; |
| 5310 | if (Rel == BO_GE || Rel == BO_GT) |
| 5311 | Range = AssertSuccess(Actions.BuildBinOp( |
| 5312 | nullptr, {}, BO_Sub, BuildVarRef(NewStart), BuildVarRef(NewStop))); |
| 5313 | else |
| 5314 | Range = AssertSuccess(Actions.BuildBinOp( |
| 5315 | nullptr, {}, BO_Sub, BuildVarRef(NewStop), BuildVarRef(NewStart))); |
| 5316 | |
| 5317 | // Ensure unsigned range space. |
| 5318 | Range = |
| 5319 | AssertSuccess(Actions.BuildCStyleCastExpr({}, LogicalTSI, {}, Range)); |
| 5320 | |
| 5321 | if (Rel == BO_LE || Rel == BO_GE) { |
| 5322 | // Add one to the range if the relational operator is inclusive. |
| 5323 | Range = |
| 5324 | AssertSuccess(Actions.BuildUnaryOp(nullptr, {}, UO_PreInc, Range)); |
| 5325 | } |
| 5326 | |
| 5327 | // Divide by the absolute step amount. |
| 5328 | Expr *Divisor = BuildVarRef(NewStep); |
| 5329 | if (Rel == BO_GE || Rel == BO_GT) |
| 5330 | Divisor = |
| 5331 | AssertSuccess(Actions.BuildUnaryOp(nullptr, {}, UO_Minus, Divisor)); |
| 5332 | Dist = AssertSuccess( |
| 5333 | Actions.BuildBinOp(nullptr, {}, BO_Div, Range, Divisor)); |
| 5334 | |
| 5335 | // If there is not at least one iteration, the range contains garbage. Fix |
| 5336 | // to zero in this case. |
| 5337 | Dist = AssertSuccess( |
| 5338 | Actions.ActOnConditionalOp({}, {}, HasAnyIteration, Dist, Zero)); |
| 5339 | } |
| 5340 | |
| 5341 | // Assign the result to the out-parameter. |
| 5342 | Stmt *ResultAssign = AssertSuccess(Actions.BuildBinOp( |
| 5343 | Actions.getCurScope(), {}, BO_Assign, DistRef, Dist)); |
| 5344 | BodyStmts.push_back(ResultAssign); |
| 5345 | |
| 5346 | Body = AssertSuccess(Actions.ActOnCompoundStmt({}, {}, BodyStmts, false)); |
| 5347 | } |
| 5348 | |
| 5349 | return cast<CapturedStmt>( |
| 5350 | AssertSuccess(Actions.ActOnCapturedRegionEnd(Body))); |
| 5351 | } |
| 5352 | |
| 5353 | /// Create a closure that computes the loop variable from the logical iteration |
| 5354 | /// number. |
| 5355 | /// |
| 5356 | /// \param Actions The Sema object. |
| 5357 | /// \param LoopVarTy Type for the loop variable used for result value. |
| 5358 | /// \param LogicalTy Type for the logical iteration number. |
| 5359 | /// \param StartExpr Value of the loop counter at the first iteration. |
| 5360 | /// \param Step Amount of increment after each iteration. |
| 5361 | /// \param Deref Whether the loop variable is a dereference of the loop |
| 5362 | /// counter variable. |
| 5363 | /// |
| 5364 | /// \return Closure (CapturedStmt) of the loop value calculation. |
| 5365 | static CapturedStmt *buildLoopVarFunc(Sema &Actions, QualType LoopVarTy, |
| 5366 | QualType LogicalTy, |
| 5367 | DeclRefExpr *StartExpr, Expr *Step, |
| 5368 | bool Deref) { |
| 5369 | ASTContext &Ctx = Actions.getASTContext(); |
| 5370 | |
| 5371 | // Pass the result as an out-parameter. Passing as return value would require |
| 5372 | // the OpenMPIRBuilder to know additional C/C++ semantics, such as how to |
| 5373 | // invoke a copy constructor. |
| 5374 | QualType TargetParamTy = Ctx.getLValueReferenceType(LoopVarTy); |
| 5375 | Sema::CapturedParamNameType Params[] = {{"LoopVar", TargetParamTy}, |
| 5376 | {"Logical", LogicalTy}, |
| 5377 | {StringRef(), QualType()}}; |
| 5378 | Actions.ActOnCapturedRegionStart({}, nullptr, CR_Default, Params); |
| 5379 | |
| 5380 | // Capture the initial iterator which represents the LoopVar value at the |
| 5381 | // zero's logical iteration. Since the original ForStmt/CXXForRangeStmt update |
| 5382 | // it in every iteration, capture it by value before it is modified. |
| 5383 | VarDecl *StartVar = cast<VarDecl>(StartExpr->getDecl()); |
| 5384 | bool Invalid = Actions.tryCaptureVariable(StartVar, {}, |
| 5385 | Sema::TryCapture_ExplicitByVal, {}); |
| 5386 | (void)Invalid; |
| 5387 | assert(!Invalid && "Expecting capture-by-value to work.")((void)0); |
| 5388 | |
| 5389 | Expr *Body; |
| 5390 | { |
| 5391 | Sema::CompoundScopeRAII CompoundScope(Actions); |
| 5392 | auto *CS = cast<CapturedDecl>(Actions.CurContext); |
| 5393 | |
| 5394 | ImplicitParamDecl *TargetParam = CS->getParam(0); |
| 5395 | DeclRefExpr *TargetRef = Actions.BuildDeclRefExpr( |
| 5396 | TargetParam, LoopVarTy, VK_LValue, {}, nullptr, nullptr, {}, nullptr); |
| 5397 | ImplicitParamDecl *IndvarParam = CS->getParam(1); |
| 5398 | DeclRefExpr *LogicalRef = Actions.BuildDeclRefExpr( |
| 5399 | IndvarParam, LogicalTy, VK_LValue, {}, nullptr, nullptr, {}, nullptr); |
| 5400 | |
| 5401 | // Capture the Start expression. |
| 5402 | CaptureVars Recap(Actions); |
| 5403 | Expr *NewStart = AssertSuccess(Recap.TransformExpr(StartExpr)); |
| 5404 | Expr *NewStep = AssertSuccess(Recap.TransformExpr(Step)); |
| 5405 | |
| 5406 | Expr *Skip = AssertSuccess( |
| 5407 | Actions.BuildBinOp(nullptr, {}, BO_Mul, NewStep, LogicalRef)); |
| 5408 | // TODO: Explicitly cast to the iterator's difference_type instead of |
| 5409 | // relying on implicit conversion. |
| 5410 | Expr *Advanced = |
| 5411 | AssertSuccess(Actions.BuildBinOp(nullptr, {}, BO_Add, NewStart, Skip)); |
| 5412 | |
| 5413 | if (Deref) { |
| 5414 | // For range-based for-loops convert the loop counter value to a concrete |
| 5415 | // loop variable value by dereferencing the iterator. |
| 5416 | Advanced = |
| 5417 | AssertSuccess(Actions.BuildUnaryOp(nullptr, {}, UO_Deref, Advanced)); |
| 5418 | } |
| 5419 | |
| 5420 | // Assign the result to the output parameter. |
| 5421 | Body = AssertSuccess(Actions.BuildBinOp(Actions.getCurScope(), {}, |
| 5422 | BO_Assign, TargetRef, Advanced)); |
| 5423 | } |
| 5424 | return cast<CapturedStmt>( |
| 5425 | AssertSuccess(Actions.ActOnCapturedRegionEnd(Body))); |
| 5426 | } |
| 5427 | |
| 5428 | StmtResult Sema::ActOnOpenMPCanonicalLoop(Stmt *AStmt) { |
| 5429 | ASTContext &Ctx = getASTContext(); |
| 5430 | |
| 5431 | // Extract the common elements of ForStmt and CXXForRangeStmt: |
| 5432 | // Loop variable, repeat condition, increment |
| 5433 | Expr *Cond, *Inc; |
| 5434 | VarDecl *LIVDecl, *LUVDecl; |
| 5435 | if (auto *For = dyn_cast<ForStmt>(AStmt)) { |
| 5436 | Stmt *Init = For->getInit(); |
| 5437 | if (auto *LCVarDeclStmt = dyn_cast<DeclStmt>(Init)) { |
| 5438 | // For statement declares loop variable. |
| 5439 | LIVDecl = cast<VarDecl>(LCVarDeclStmt->getSingleDecl()); |
| 5440 | } else if (auto *LCAssign = dyn_cast<BinaryOperator>(Init)) { |
| 5441 | // For statement reuses variable. |
| 5442 | assert(LCAssign->getOpcode() == BO_Assign &&((void)0) |
| 5443 | "init part must be a loop variable assignment")((void)0); |
| 5444 | auto *CounterRef = cast<DeclRefExpr>(LCAssign->getLHS()); |
| 5445 | LIVDecl = cast<VarDecl>(CounterRef->getDecl()); |
| 5446 | } else |
| 5447 | llvm_unreachable("Cannot determine loop variable")__builtin_unreachable(); |
| 5448 | LUVDecl = LIVDecl; |
| 5449 | |
| 5450 | Cond = For->getCond(); |
| 5451 | Inc = For->getInc(); |
| 5452 | } else if (auto *RangeFor = dyn_cast<CXXForRangeStmt>(AStmt)) { |
| 5453 | DeclStmt *BeginStmt = RangeFor->getBeginStmt(); |
| 5454 | LIVDecl = cast<VarDecl>(BeginStmt->getSingleDecl()); |
| 5455 | LUVDecl = RangeFor->getLoopVariable(); |
| 5456 | |
| 5457 | Cond = RangeFor->getCond(); |
| 5458 | Inc = RangeFor->getInc(); |
| 5459 | } else |
| 5460 | llvm_unreachable("unhandled kind of loop")__builtin_unreachable(); |
| 5461 | |
| 5462 | QualType CounterTy = LIVDecl->getType(); |
| 5463 | QualType LVTy = LUVDecl->getType(); |
| 5464 | |
| 5465 | // Analyze the loop condition. |
| 5466 | Expr *LHS, *RHS; |
| 5467 | BinaryOperator::Opcode CondRel; |
| 5468 | Cond = Cond->IgnoreImplicit(); |
| 5469 | if (auto *CondBinExpr = dyn_cast<BinaryOperator>(Cond)) { |
| 5470 | LHS = CondBinExpr->getLHS(); |
| 5471 | RHS = CondBinExpr->getRHS(); |
| 5472 | CondRel = CondBinExpr->getOpcode(); |
| 5473 | } else if (auto *CondCXXOp = dyn_cast<CXXOperatorCallExpr>(Cond)) { |
| 5474 | assert(CondCXXOp->getNumArgs() == 2 && "Comparison should have 2 operands")((void)0); |
| 5475 | LHS = CondCXXOp->getArg(0); |
| 5476 | RHS = CondCXXOp->getArg(1); |
| 5477 | switch (CondCXXOp->getOperator()) { |
| 5478 | case OO_ExclaimEqual: |
| 5479 | CondRel = BO_NE; |
| 5480 | break; |
| 5481 | case OO_Less: |
| 5482 | CondRel = BO_LT; |
| 5483 | break; |
| 5484 | case OO_LessEqual: |
| 5485 | CondRel = BO_LE; |
| 5486 | break; |
| 5487 | case OO_Greater: |
| 5488 | CondRel = BO_GT; |
| 5489 | break; |
| 5490 | case OO_GreaterEqual: |
| 5491 | CondRel = BO_GE; |
| 5492 | break; |
| 5493 | default: |
| 5494 | llvm_unreachable("unexpected iterator operator")__builtin_unreachable(); |
| 5495 | } |
| 5496 | } else |
| 5497 | llvm_unreachable("unexpected loop condition")__builtin_unreachable(); |
| 5498 | |
| 5499 | // Normalize such that the loop counter is on the LHS. |
| 5500 | if (!isa<DeclRefExpr>(LHS->IgnoreImplicit()) || |
| 5501 | cast<DeclRefExpr>(LHS->IgnoreImplicit())->getDecl() != LIVDecl) { |
| 5502 | std::swap(LHS, RHS); |
| 5503 | CondRel = BinaryOperator::reverseComparisonOp(CondRel); |
| 5504 | } |
| 5505 | auto *CounterRef = cast<DeclRefExpr>(LHS->IgnoreImplicit()); |
| 5506 | |
| 5507 | // Decide the bit width for the logical iteration counter. By default use the |
| 5508 | // unsigned ptrdiff_t integer size (for iterators and pointers). |
| 5509 | // TODO: For iterators, use iterator::difference_type, |
| 5510 | // std::iterator_traits<>::difference_type or decltype(it - end). |
| 5511 | QualType LogicalTy = Ctx.getUnsignedPointerDiffType(); |
| 5512 | if (CounterTy->isIntegerType()) { |
| 5513 | unsigned BitWidth = Ctx.getIntWidth(CounterTy); |
| 5514 | LogicalTy = Ctx.getIntTypeForBitwidth(BitWidth, false); |
| 5515 | } |
| 5516 | |
| 5517 | // Analyze the loop increment. |
| 5518 | Expr *Step; |
| 5519 | if (auto *IncUn = dyn_cast<UnaryOperator>(Inc)) { |
| 5520 | int Direction; |
| 5521 | switch (IncUn->getOpcode()) { |
| 5522 | case UO_PreInc: |
| 5523 | case UO_PostInc: |
| 5524 | Direction = 1; |
| 5525 | break; |
| 5526 | case UO_PreDec: |
| 5527 | case UO_PostDec: |
| 5528 | Direction = -1; |
| 5529 | break; |
| 5530 | default: |
| 5531 | llvm_unreachable("unhandled unary increment operator")__builtin_unreachable(); |
| 5532 | } |
| 5533 | Step = IntegerLiteral::Create( |
| 5534 | Ctx, llvm::APInt(Ctx.getIntWidth(LogicalTy), Direction), LogicalTy, {}); |
| 5535 | } else if (auto *IncBin = dyn_cast<BinaryOperator>(Inc)) { |
| 5536 | if (IncBin->getOpcode() == BO_AddAssign) { |
| 5537 | Step = IncBin->getRHS(); |
| 5538 | } else if (IncBin->getOpcode() == BO_SubAssign) { |
| 5539 | Step = |
| 5540 | AssertSuccess(BuildUnaryOp(nullptr, {}, UO_Minus, IncBin->getRHS())); |
| 5541 | } else |
| 5542 | llvm_unreachable("unhandled binary increment operator")__builtin_unreachable(); |
| 5543 | } else if (auto *CondCXXOp = dyn_cast<CXXOperatorCallExpr>(Inc)) { |
| 5544 | switch (CondCXXOp->getOperator()) { |
| 5545 | case OO_PlusPlus: |
| 5546 | Step = IntegerLiteral::Create( |
| 5547 | Ctx, llvm::APInt(Ctx.getIntWidth(LogicalTy), 1), LogicalTy, {}); |
| 5548 | break; |
| 5549 | case OO_MinusMinus: |
| 5550 | Step = IntegerLiteral::Create( |
| 5551 | Ctx, llvm::APInt(Ctx.getIntWidth(LogicalTy), -1), LogicalTy, {}); |
| 5552 | break; |
| 5553 | case OO_PlusEqual: |
| 5554 | Step = CondCXXOp->getArg(1); |
| 5555 | break; |
| 5556 | case OO_MinusEqual: |
| 5557 | Step = AssertSuccess( |
| 5558 | BuildUnaryOp(nullptr, {}, UO_Minus, CondCXXOp->getArg(1))); |
| 5559 | break; |
| 5560 | default: |
| 5561 | llvm_unreachable("unhandled overloaded increment operator")__builtin_unreachable(); |
| 5562 | } |
| 5563 | } else |
| 5564 | llvm_unreachable("unknown increment expression")__builtin_unreachable(); |
| 5565 | |
| 5566 | CapturedStmt *DistanceFunc = |
| 5567 | buildDistanceFunc(*this, LogicalTy, CondRel, LHS, RHS, Step); |
| 5568 | CapturedStmt *LoopVarFunc = buildLoopVarFunc( |
| 5569 | *this, LVTy, LogicalTy, CounterRef, Step, isa<CXXForRangeStmt>(AStmt)); |
| 5570 | DeclRefExpr *LVRef = BuildDeclRefExpr(LUVDecl, LUVDecl->getType(), VK_LValue, |
| 5571 | {}, nullptr, nullptr, {}, nullptr); |
| 5572 | return OMPCanonicalLoop::create(getASTContext(), AStmt, DistanceFunc, |
| 5573 | LoopVarFunc, LVRef); |
| 5574 | } |
| 5575 | |
| 5576 | static ExprResult buildUserDefinedMapperRef(Sema &SemaRef, Scope *S, |
| 5577 | CXXScopeSpec &MapperIdScopeSpec, |
| 5578 | const DeclarationNameInfo &MapperId, |
| 5579 | QualType Type, |
| 5580 | Expr *UnresolvedMapper); |
| 5581 | |
| 5582 | /// Perform DFS through the structure/class data members trying to find |
| 5583 | /// member(s) with user-defined 'default' mapper and generate implicit map |
| 5584 | /// clauses for such members with the found 'default' mapper. |
| 5585 | static void |
| 5586 | processImplicitMapsWithDefaultMappers(Sema &S, DSAStackTy *Stack, |
| 5587 | SmallVectorImpl<OMPClause *> &Clauses) { |
| 5588 | // Check for the deault mapper for data members. |
| 5589 | if (S.getLangOpts().OpenMP < 50) |
| 5590 | return; |
| 5591 | SmallVector<OMPClause *, 4> ImplicitMaps; |
| 5592 | for (int Cnt = 0, EndCnt = Clauses.size(); Cnt < EndCnt; ++Cnt) { |
| 5593 | auto *C = dyn_cast<OMPMapClause>(Clauses[Cnt]); |
| 5594 | if (!C) |
| 5595 | continue; |
| 5596 | SmallVector<Expr *, 4> SubExprs; |
| 5597 | auto *MI = C->mapperlist_begin(); |
| 5598 | for (auto I = C->varlist_begin(), End = C->varlist_end(); I != End; |
| 5599 | ++I, ++MI) { |
| 5600 | // Expression is mapped using mapper - skip it. |
| 5601 | if (*MI) |
| 5602 | continue; |
| 5603 | Expr *E = *I; |
| 5604 | // Expression is dependent - skip it, build the mapper when it gets |
| 5605 | // instantiated. |
| 5606 | if (E->isTypeDependent() || E->isValueDependent() || |
| 5607 | E->containsUnexpandedParameterPack()) |
| 5608 | continue; |
| 5609 | // Array section - need to check for the mapping of the array section |
| 5610 | // element. |
| 5611 | QualType CanonType = E->getType().getCanonicalType(); |
| 5612 | if (CanonType->isSpecificBuiltinType(BuiltinType::OMPArraySection)) { |
| 5613 | const auto *OASE = cast<OMPArraySectionExpr>(E->IgnoreParenImpCasts()); |
| 5614 | QualType BaseType = |
| 5615 | OMPArraySectionExpr::getBaseOriginalType(OASE->getBase()); |
| 5616 | QualType ElemType; |
| 5617 | if (const auto *ATy = BaseType->getAsArrayTypeUnsafe()) |
| 5618 | ElemType = ATy->getElementType(); |
| 5619 | else |
| 5620 | ElemType = BaseType->getPointeeType(); |
| 5621 | CanonType = ElemType; |
| 5622 | } |
| 5623 | |
| 5624 | // DFS over data members in structures/classes. |
| 5625 | SmallVector<std::pair<QualType, FieldDecl *>, 4> Types( |
| 5626 | 1, {CanonType, nullptr}); |
| 5627 | llvm::DenseMap<const Type *, Expr *> Visited; |
| 5628 | SmallVector<std::pair<FieldDecl *, unsigned>, 4> ParentChain( |
| 5629 | 1, {nullptr, 1}); |
| 5630 | while (!Types.empty()) { |
| 5631 | QualType BaseType; |
| 5632 | FieldDecl *CurFD; |
| 5633 | std::tie(BaseType, CurFD) = Types.pop_back_val(); |
| 5634 | while (ParentChain.back().second == 0) |
| 5635 | ParentChain.pop_back(); |
| 5636 | --ParentChain.back().second; |
| 5637 | if (BaseType.isNull()) |
| 5638 | continue; |
| 5639 | // Only structs/classes are allowed to have mappers. |
| 5640 | const RecordDecl *RD = BaseType.getCanonicalType()->getAsRecordDecl(); |
| 5641 | if (!RD) |
| 5642 | continue; |
| 5643 | auto It = Visited.find(BaseType.getTypePtr()); |
| 5644 | if (It == Visited.end()) { |
| 5645 | // Try to find the associated user-defined mapper. |
| 5646 | CXXScopeSpec MapperIdScopeSpec; |
| 5647 | DeclarationNameInfo DefaultMapperId; |
| 5648 | DefaultMapperId.setName(S.Context.DeclarationNames.getIdentifier( |
| 5649 | &S.Context.Idents.get("default"))); |
| 5650 | DefaultMapperId.setLoc(E->getExprLoc()); |
| 5651 | ExprResult ER = buildUserDefinedMapperRef( |
| 5652 | S, Stack->getCurScope(), MapperIdScopeSpec, DefaultMapperId, |
| 5653 | BaseType, /*UnresolvedMapper=*/nullptr); |
| 5654 | if (ER.isInvalid()) |
| 5655 | continue; |
| 5656 | It = Visited.try_emplace(BaseType.getTypePtr(), ER.get()).first; |
| 5657 | } |
| 5658 | // Found default mapper. |
| 5659 | if (It->second) { |
| 5660 | auto *OE = new (S.Context) OpaqueValueExpr(E->getExprLoc(), CanonType, |
| 5661 | VK_LValue, OK_Ordinary, E); |
| 5662 | OE->setIsUnique(/*V=*/true); |
| 5663 | Expr *BaseExpr = OE; |
| 5664 | for (const auto &P : ParentChain) { |
| 5665 | if (P.first) { |
| 5666 | BaseExpr = S.BuildMemberExpr( |
| 5667 | BaseExpr, /*IsArrow=*/false, E->getExprLoc(), |
| 5668 | NestedNameSpecifierLoc(), SourceLocation(), P.first, |
| 5669 | DeclAccessPair::make(P.first, P.first->getAccess()), |
| 5670 | /*HadMultipleCandidates=*/false, DeclarationNameInfo(), |
| 5671 | P.first->getType(), VK_LValue, OK_Ordinary); |
| 5672 | BaseExpr = S.DefaultLvalueConversion(BaseExpr).get(); |
| 5673 | } |
| 5674 | } |
| 5675 | if (CurFD) |
| 5676 | BaseExpr = S.BuildMemberExpr( |
| 5677 | BaseExpr, /*IsArrow=*/false, E->getExprLoc(), |
| 5678 | NestedNameSpecifierLoc(), SourceLocation(), CurFD, |
| 5679 | DeclAccessPair::make(CurFD, CurFD->getAccess()), |
| 5680 | /*HadMultipleCandidates=*/false, DeclarationNameInfo(), |
| 5681 | CurFD->getType(), VK_LValue, OK_Ordinary); |
| 5682 | SubExprs.push_back(BaseExpr); |
| 5683 | continue; |
| 5684 | } |
| 5685 | // Check for the "default" mapper for data memebers. |
| 5686 | bool FirstIter = true; |
| 5687 | for (FieldDecl *FD : RD->fields()) { |
| 5688 | if (!FD) |
| 5689 | continue; |
| 5690 | QualType FieldTy = FD->getType(); |
| 5691 | if (FieldTy.isNull() || |
| 5692 | !(FieldTy->isStructureOrClassType() || FieldTy->isUnionType())) |
| 5693 | continue; |
| 5694 | if (FirstIter) { |
| 5695 | FirstIter = false; |
| 5696 | ParentChain.emplace_back(CurFD, 1); |
| 5697 | } else { |
| 5698 | ++ParentChain.back().second; |
| 5699 | } |
| 5700 | Types.emplace_back(FieldTy, FD); |
| 5701 | } |
| 5702 | } |
| 5703 | } |
| 5704 | if (SubExprs.empty()) |
| 5705 | continue; |
| 5706 | CXXScopeSpec MapperIdScopeSpec; |
| 5707 | DeclarationNameInfo MapperId; |
| 5708 | if (OMPClause *NewClause = S.ActOnOpenMPMapClause( |
| 5709 | C->getMapTypeModifiers(), C->getMapTypeModifiersLoc(), |
| 5710 | MapperIdScopeSpec, MapperId, C->getMapType(), |
| 5711 | /*IsMapTypeImplicit=*/true, SourceLocation(), SourceLocation(), |
| 5712 | SubExprs, OMPVarListLocTy())) |
| 5713 | Clauses.push_back(NewClause); |
| 5714 | } |
| 5715 | } |
| 5716 | |
| 5717 | StmtResult Sema::ActOnOpenMPExecutableDirective( |
| 5718 | OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName, |
| 5719 | OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses, |
| 5720 | Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc) { |
| 5721 | StmtResult Res = StmtError(); |
| 5722 | // First check CancelRegion which is then used in checkNestingOfRegions. |
| 5723 | if (checkCancelRegion(*this, Kind, CancelRegion, StartLoc) || |
| 5724 | checkNestingOfRegions(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), Kind, DirName, CancelRegion, |
| 5725 | StartLoc)) |
| 5726 | return StmtError(); |
| 5727 | |
| 5728 | llvm::SmallVector<OMPClause *, 8> ClausesWithImplicit; |
| 5729 | VarsWithInheritedDSAType VarsWithInheritedDSA; |
| 5730 | bool ErrorFound = false; |
| 5731 | ClausesWithImplicit.append(Clauses.begin(), Clauses.end()); |
| 5732 | if (AStmt && !CurContext->isDependentContext() && Kind != OMPD_atomic && |
| 5733 | Kind != OMPD_critical && Kind != OMPD_section && Kind != OMPD_master && |
| 5734 | Kind != OMPD_masked && !isOpenMPLoopTransformationDirective(Kind)) { |
| 5735 | assert(isa<CapturedStmt>(AStmt) && "Captured statement expected")((void)0); |
| 5736 | |
| 5737 | // Check default data sharing attributes for referenced variables. |
| 5738 | DSAAttrChecker DSAChecker(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), *this, cast<CapturedStmt>(AStmt)); |
| 5739 | int ThisCaptureLevel = getOpenMPCaptureLevels(Kind); |
| 5740 | Stmt *S = AStmt; |
| 5741 | while (--ThisCaptureLevel >= 0) |
| 5742 | S = cast<CapturedStmt>(S)->getCapturedStmt(); |
| 5743 | DSAChecker.Visit(S); |
| 5744 | if (!isOpenMPTargetDataManagementDirective(Kind) && |
| 5745 | !isOpenMPTaskingDirective(Kind)) { |
| 5746 | // Visit subcaptures to generate implicit clauses for captured vars. |
| 5747 | auto *CS = cast<CapturedStmt>(AStmt); |
| 5748 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; |
| 5749 | getOpenMPCaptureRegions(CaptureRegions, Kind); |
| 5750 | // Ignore outer tasking regions for target directives. |
| 5751 | if (CaptureRegions.size() > 1 && CaptureRegions.front() == OMPD_task) |
| 5752 | CS = cast<CapturedStmt>(CS->getCapturedStmt()); |
| 5753 | DSAChecker.visitSubCaptures(CS); |
| 5754 | } |
| 5755 | if (DSAChecker.isErrorFound()) |
| 5756 | return StmtError(); |
| 5757 | // Generate list of implicitly defined firstprivate variables. |
| 5758 | VarsWithInheritedDSA = DSAChecker.getVarsWithInheritedDSA(); |
| 5759 | |
| 5760 | SmallVector<Expr *, 4> ImplicitFirstprivates( |
| 5761 | DSAChecker.getImplicitFirstprivate().begin(), |
| 5762 | DSAChecker.getImplicitFirstprivate().end()); |
| 5763 | const unsigned DefaultmapKindNum = OMPC_DEFAULTMAP_pointer + 1; |
| 5764 | SmallVector<Expr *, 4> ImplicitMaps[DefaultmapKindNum][OMPC_MAP_delete]; |
| 5765 | SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers> |
| 5766 | ImplicitMapModifiers[DefaultmapKindNum]; |
| 5767 | SmallVector<SourceLocation, NumberOfOMPMapClauseModifiers> |
| 5768 | ImplicitMapModifiersLoc[DefaultmapKindNum]; |
| 5769 | // Get the original location of present modifier from Defaultmap clause. |
| 5770 | SourceLocation PresentModifierLocs[DefaultmapKindNum]; |
| 5771 | for (OMPClause *C : Clauses) { |
| 5772 | if (auto *DMC = dyn_cast<OMPDefaultmapClause>(C)) |
| 5773 | if (DMC->getDefaultmapModifier() == OMPC_DEFAULTMAP_MODIFIER_present) |
| 5774 | PresentModifierLocs[DMC->getDefaultmapKind()] = |
| 5775 | DMC->getDefaultmapModifierLoc(); |
| 5776 | } |
| 5777 | for (unsigned VC = 0; VC < DefaultmapKindNum; ++VC) { |
| 5778 | auto Kind = static_cast<OpenMPDefaultmapClauseKind>(VC); |
| 5779 | for (unsigned I = 0; I < OMPC_MAP_delete; ++I) { |
| 5780 | ArrayRef<Expr *> ImplicitMap = DSAChecker.getImplicitMap( |
| 5781 | Kind, static_cast<OpenMPMapClauseKind>(I)); |
| 5782 | ImplicitMaps[VC][I].append(ImplicitMap.begin(), ImplicitMap.end()); |
| 5783 | } |
| 5784 | ArrayRef<OpenMPMapModifierKind> ImplicitModifier = |
| 5785 | DSAChecker.getImplicitMapModifier(Kind); |
| 5786 | ImplicitMapModifiers[VC].append(ImplicitModifier.begin(), |
| 5787 | ImplicitModifier.end()); |
| 5788 | std::fill_n(std::back_inserter(ImplicitMapModifiersLoc[VC]), |
| 5789 | ImplicitModifier.size(), PresentModifierLocs[VC]); |
| 5790 | } |
| 5791 | // Mark taskgroup task_reduction descriptors as implicitly firstprivate. |
| 5792 | for (OMPClause *C : Clauses) { |
| 5793 | if (auto *IRC = dyn_cast<OMPInReductionClause>(C)) { |
| 5794 | for (Expr *E : IRC->taskgroup_descriptors()) |
| 5795 | if (E) |
| 5796 | ImplicitFirstprivates.emplace_back(E); |
| 5797 | } |
| 5798 | // OpenMP 5.0, 2.10.1 task Construct |
| 5799 | // [detach clause]... The event-handle will be considered as if it was |
| 5800 | // specified on a firstprivate clause. |
| 5801 | if (auto *DC = dyn_cast<OMPDetachClause>(C)) |
| 5802 | ImplicitFirstprivates.push_back(DC->getEventHandler()); |
| 5803 | } |
| 5804 | if (!ImplicitFirstprivates.empty()) { |
| 5805 | if (OMPClause *Implicit = ActOnOpenMPFirstprivateClause( |
| 5806 | ImplicitFirstprivates, SourceLocation(), SourceLocation(), |
| 5807 | SourceLocation())) { |
| 5808 | ClausesWithImplicit.push_back(Implicit); |
| 5809 | ErrorFound = cast<OMPFirstprivateClause>(Implicit)->varlist_size() != |
| 5810 | ImplicitFirstprivates.size(); |
| 5811 | } else { |
| 5812 | ErrorFound = true; |
| 5813 | } |
| 5814 | } |
| 5815 | for (unsigned I = 0, E = DefaultmapKindNum; I < E; ++I) { |
| 5816 | int ClauseKindCnt = -1; |
| 5817 | for (ArrayRef<Expr *> ImplicitMap : ImplicitMaps[I]) { |
| 5818 | ++ClauseKindCnt; |
| 5819 | if (ImplicitMap.empty()) |
| 5820 | continue; |
| 5821 | CXXScopeSpec MapperIdScopeSpec; |
| 5822 | DeclarationNameInfo MapperId; |
| 5823 | auto Kind = static_cast<OpenMPMapClauseKind>(ClauseKindCnt); |
| 5824 | if (OMPClause *Implicit = ActOnOpenMPMapClause( |
| 5825 | ImplicitMapModifiers[I], ImplicitMapModifiersLoc[I], |
| 5826 | MapperIdScopeSpec, MapperId, Kind, /*IsMapTypeImplicit=*/true, |
| 5827 | SourceLocation(), SourceLocation(), ImplicitMap, |
| 5828 | OMPVarListLocTy())) { |
| 5829 | ClausesWithImplicit.emplace_back(Implicit); |
| 5830 | ErrorFound |= cast<OMPMapClause>(Implicit)->varlist_size() != |
| 5831 | ImplicitMap.size(); |
| 5832 | } else { |
| 5833 | ErrorFound = true; |
| 5834 | } |
| 5835 | } |
| 5836 | } |
| 5837 | // Build expressions for implicit maps of data members with 'default' |
| 5838 | // mappers. |
| 5839 | if (LangOpts.OpenMP >= 50) |
| 5840 | processImplicitMapsWithDefaultMappers(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack ), |
| 5841 | ClausesWithImplicit); |
| 5842 | } |
| 5843 | |
| 5844 | llvm::SmallVector<OpenMPDirectiveKind, 4> AllowedNameModifiers; |
| 5845 | switch (Kind) { |
| 5846 | case OMPD_parallel: |
| 5847 | Res = ActOnOpenMPParallelDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5848 | EndLoc); |
| 5849 | AllowedNameModifiers.push_back(OMPD_parallel); |
| 5850 | break; |
| 5851 | case OMPD_simd: |
| 5852 | Res = ActOnOpenMPSimdDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc, |
| 5853 | VarsWithInheritedDSA); |
| 5854 | if (LangOpts.OpenMP >= 50) |
| 5855 | AllowedNameModifiers.push_back(OMPD_simd); |
| 5856 | break; |
| 5857 | case OMPD_tile: |
| 5858 | Res = |
| 5859 | ActOnOpenMPTileDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc); |
| 5860 | break; |
| 5861 | case OMPD_unroll: |
| 5862 | Res = ActOnOpenMPUnrollDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5863 | EndLoc); |
| 5864 | break; |
| 5865 | case OMPD_for: |
| 5866 | Res = ActOnOpenMPForDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc, |
| 5867 | VarsWithInheritedDSA); |
| 5868 | break; |
| 5869 | case OMPD_for_simd: |
| 5870 | Res = ActOnOpenMPForSimdDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5871 | EndLoc, VarsWithInheritedDSA); |
| 5872 | if (LangOpts.OpenMP >= 50) |
| 5873 | AllowedNameModifiers.push_back(OMPD_simd); |
| 5874 | break; |
| 5875 | case OMPD_sections: |
| 5876 | Res = ActOnOpenMPSectionsDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5877 | EndLoc); |
| 5878 | break; |
| 5879 | case OMPD_section: |
| 5880 | assert(ClausesWithImplicit.empty() &&((void)0) |
| 5881 | "No clauses are allowed for 'omp section' directive")((void)0); |
| 5882 | Res = ActOnOpenMPSectionDirective(AStmt, StartLoc, EndLoc); |
| 5883 | break; |
| 5884 | case OMPD_single: |
| 5885 | Res = ActOnOpenMPSingleDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5886 | EndLoc); |
| 5887 | break; |
| 5888 | case OMPD_master: |
| 5889 | assert(ClausesWithImplicit.empty() &&((void)0) |
| 5890 | "No clauses are allowed for 'omp master' directive")((void)0); |
| 5891 | Res = ActOnOpenMPMasterDirective(AStmt, StartLoc, EndLoc); |
| 5892 | break; |
| 5893 | case OMPD_masked: |
| 5894 | Res = ActOnOpenMPMaskedDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5895 | EndLoc); |
| 5896 | break; |
| 5897 | case OMPD_critical: |
| 5898 | Res = ActOnOpenMPCriticalDirective(DirName, ClausesWithImplicit, AStmt, |
| 5899 | StartLoc, EndLoc); |
| 5900 | break; |
| 5901 | case OMPD_parallel_for: |
| 5902 | Res = ActOnOpenMPParallelForDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5903 | EndLoc, VarsWithInheritedDSA); |
| 5904 | AllowedNameModifiers.push_back(OMPD_parallel); |
| 5905 | break; |
| 5906 | case OMPD_parallel_for_simd: |
| 5907 | Res = ActOnOpenMPParallelForSimdDirective( |
| 5908 | ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA); |
| 5909 | AllowedNameModifiers.push_back(OMPD_parallel); |
| 5910 | if (LangOpts.OpenMP >= 50) |
| 5911 | AllowedNameModifiers.push_back(OMPD_simd); |
| 5912 | break; |
| 5913 | case OMPD_parallel_master: |
| 5914 | Res = ActOnOpenMPParallelMasterDirective(ClausesWithImplicit, AStmt, |
| 5915 | StartLoc, EndLoc); |
| 5916 | AllowedNameModifiers.push_back(OMPD_parallel); |
| 5917 | break; |
| 5918 | case OMPD_parallel_sections: |
| 5919 | Res = ActOnOpenMPParallelSectionsDirective(ClausesWithImplicit, AStmt, |
| 5920 | StartLoc, EndLoc); |
| 5921 | AllowedNameModifiers.push_back(OMPD_parallel); |
| 5922 | break; |
| 5923 | case OMPD_task: |
| 5924 | Res = |
| 5925 | ActOnOpenMPTaskDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc); |
| 5926 | AllowedNameModifiers.push_back(OMPD_task); |
| 5927 | break; |
| 5928 | case OMPD_taskyield: |
| 5929 | assert(ClausesWithImplicit.empty() &&((void)0) |
| 5930 | "No clauses are allowed for 'omp taskyield' directive")((void)0); |
| 5931 | assert(AStmt == nullptr &&((void)0) |
| 5932 | "No associated statement allowed for 'omp taskyield' directive")((void)0); |
| 5933 | Res = ActOnOpenMPTaskyieldDirective(StartLoc, EndLoc); |
| 5934 | break; |
| 5935 | case OMPD_barrier: |
| 5936 | assert(ClausesWithImplicit.empty() &&((void)0) |
| 5937 | "No clauses are allowed for 'omp barrier' directive")((void)0); |
| 5938 | assert(AStmt == nullptr &&((void)0) |
| 5939 | "No associated statement allowed for 'omp barrier' directive")((void)0); |
| 5940 | Res = ActOnOpenMPBarrierDirective(StartLoc, EndLoc); |
| 5941 | break; |
| 5942 | case OMPD_taskwait: |
| 5943 | assert(ClausesWithImplicit.empty() &&((void)0) |
| 5944 | "No clauses are allowed for 'omp taskwait' directive")((void)0); |
| 5945 | assert(AStmt == nullptr &&((void)0) |
| 5946 | "No associated statement allowed for 'omp taskwait' directive")((void)0); |
| 5947 | Res = ActOnOpenMPTaskwaitDirective(StartLoc, EndLoc); |
| 5948 | break; |
| 5949 | case OMPD_taskgroup: |
| 5950 | Res = ActOnOpenMPTaskgroupDirective(ClausesWithImplicit, AStmt, StartLoc, |
| 5951 | EndLoc); |
| 5952 | break; |
| 5953 | case OMPD_flush: |
| 5954 | assert(AStmt == nullptr &&((void)0) |
| 5955 | "No associated statement allowed for 'omp flush' directive")((void)0); |
| 5956 | Res = ActOnOpenMPFlushDirective(ClausesWithImplicit, StartLoc, EndLoc); |
| 5957 |