forked from OSchip/llvm-project
5204 lines
213 KiB
C++
5204 lines
213 KiB
C++
//===--- SemaOpenMP.cpp - Semantic Analysis for OpenMP constructs ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// \brief This file implements semantic analysis for OpenMP directives and
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/// clauses.
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///
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//===----------------------------------------------------------------------===//
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclOpenMP.h"
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#include "clang/AST/StmtCXX.h"
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#include "clang/AST/StmtOpenMP.h"
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#include "clang/AST/StmtVisitor.h"
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#include "clang/Basic/OpenMPKinds.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Sema/Initialization.h"
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#include "clang/Sema/Lookup.h"
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#include "clang/Sema/Scope.h"
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#include "clang/Sema/ScopeInfo.h"
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#include "clang/Sema/SemaInternal.h"
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using namespace clang;
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//===----------------------------------------------------------------------===//
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// Stack of data-sharing attributes for variables
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//===----------------------------------------------------------------------===//
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namespace {
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/// \brief Default data sharing attributes, which can be applied to directive.
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enum DefaultDataSharingAttributes {
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DSA_unspecified = 0, /// \brief Data sharing attribute not specified.
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DSA_none = 1 << 0, /// \brief Default data sharing attribute 'none'.
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DSA_shared = 1 << 1 /// \brief Default data sharing attribute 'shared'.
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};
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template <class T> struct MatchesAny {
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explicit MatchesAny(ArrayRef<T> Arr) : Arr(std::move(Arr)) {}
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bool operator()(T Kind) {
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for (auto KindEl : Arr)
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if (KindEl == Kind)
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return true;
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return false;
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}
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private:
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ArrayRef<T> Arr;
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};
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struct MatchesAlways {
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MatchesAlways() {}
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template <class T> bool operator()(T) { return true; }
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};
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typedef MatchesAny<OpenMPClauseKind> MatchesAnyClause;
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typedef MatchesAny<OpenMPDirectiveKind> MatchesAnyDirective;
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/// \brief Stack for tracking declarations used in OpenMP directives and
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/// clauses and their data-sharing attributes.
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class DSAStackTy {
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public:
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struct DSAVarData {
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OpenMPDirectiveKind DKind;
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OpenMPClauseKind CKind;
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DeclRefExpr *RefExpr;
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SourceLocation ImplicitDSALoc;
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DSAVarData()
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: DKind(OMPD_unknown), CKind(OMPC_unknown), RefExpr(nullptr),
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ImplicitDSALoc() {}
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};
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private:
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struct DSAInfo {
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OpenMPClauseKind Attributes;
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DeclRefExpr *RefExpr;
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};
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typedef llvm::SmallDenseMap<VarDecl *, DSAInfo, 64> DeclSAMapTy;
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typedef llvm::SmallDenseMap<VarDecl *, DeclRefExpr *, 64> AlignedMapTy;
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struct SharingMapTy {
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DeclSAMapTy SharingMap;
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AlignedMapTy AlignedMap;
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DefaultDataSharingAttributes DefaultAttr;
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SourceLocation DefaultAttrLoc;
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OpenMPDirectiveKind Directive;
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DeclarationNameInfo DirectiveName;
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Scope *CurScope;
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SourceLocation ConstructLoc;
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bool OrderedRegion;
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SourceLocation InnerTeamsRegionLoc;
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SharingMapTy(OpenMPDirectiveKind DKind, DeclarationNameInfo Name,
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Scope *CurScope, SourceLocation Loc)
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: SharingMap(), AlignedMap(), DefaultAttr(DSA_unspecified),
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Directive(DKind), DirectiveName(std::move(Name)), CurScope(CurScope),
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ConstructLoc(Loc), OrderedRegion(false), InnerTeamsRegionLoc() {}
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SharingMapTy()
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: SharingMap(), AlignedMap(), DefaultAttr(DSA_unspecified),
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Directive(OMPD_unknown), DirectiveName(), CurScope(nullptr),
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ConstructLoc(), OrderedRegion(false), InnerTeamsRegionLoc() {}
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};
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typedef SmallVector<SharingMapTy, 64> StackTy;
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/// \brief Stack of used declaration and their data-sharing attributes.
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StackTy Stack;
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Sema &SemaRef;
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typedef SmallVector<SharingMapTy, 8>::reverse_iterator reverse_iterator;
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DSAVarData getDSA(StackTy::reverse_iterator Iter, VarDecl *D);
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/// \brief Checks if the variable is a local for OpenMP region.
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bool isOpenMPLocal(VarDecl *D, StackTy::reverse_iterator Iter);
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public:
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explicit DSAStackTy(Sema &S) : Stack(1), SemaRef(S) {}
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void push(OpenMPDirectiveKind DKind, const DeclarationNameInfo &DirName,
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Scope *CurScope, SourceLocation Loc) {
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Stack.push_back(SharingMapTy(DKind, DirName, CurScope, Loc));
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Stack.back().DefaultAttrLoc = Loc;
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}
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void pop() {
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assert(Stack.size() > 1 && "Data-sharing attributes stack is empty!");
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Stack.pop_back();
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}
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/// \brief If 'aligned' declaration for given variable \a D was not seen yet,
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/// add it and return NULL; otherwise return previous occurrence's expression
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/// for diagnostics.
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DeclRefExpr *addUniqueAligned(VarDecl *D, DeclRefExpr *NewDE);
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/// \brief Adds explicit data sharing attribute to the specified declaration.
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void addDSA(VarDecl *D, DeclRefExpr *E, OpenMPClauseKind A);
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/// \brief Returns data sharing attributes from top of the stack for the
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/// specified declaration.
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DSAVarData getTopDSA(VarDecl *D, bool FromParent);
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/// \brief Returns data-sharing attributes for the specified declaration.
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DSAVarData getImplicitDSA(VarDecl *D, bool FromParent);
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/// \brief Checks if the specified variables has data-sharing attributes which
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/// match specified \a CPred predicate in any directive which matches \a DPred
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/// predicate.
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template <class ClausesPredicate, class DirectivesPredicate>
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DSAVarData hasDSA(VarDecl *D, ClausesPredicate CPred,
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DirectivesPredicate DPred, bool FromParent);
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/// \brief Checks if the specified variables has data-sharing attributes which
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/// match specified \a CPred predicate in any innermost directive which
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/// matches \a DPred predicate.
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template <class ClausesPredicate, class DirectivesPredicate>
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DSAVarData hasInnermostDSA(VarDecl *D, ClausesPredicate CPred,
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DirectivesPredicate DPred,
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bool FromParent);
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/// \brief Finds a directive which matches specified \a DPred predicate.
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template <class NamedDirectivesPredicate>
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bool hasDirective(NamedDirectivesPredicate DPred, bool FromParent);
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/// \brief Returns currently analyzed directive.
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OpenMPDirectiveKind getCurrentDirective() const {
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return Stack.back().Directive;
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}
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/// \brief Returns parent directive.
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OpenMPDirectiveKind getParentDirective() const {
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if (Stack.size() > 2)
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return Stack[Stack.size() - 2].Directive;
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return OMPD_unknown;
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}
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/// \brief Set default data sharing attribute to none.
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void setDefaultDSANone(SourceLocation Loc) {
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Stack.back().DefaultAttr = DSA_none;
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Stack.back().DefaultAttrLoc = Loc;
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}
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/// \brief Set default data sharing attribute to shared.
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void setDefaultDSAShared(SourceLocation Loc) {
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Stack.back().DefaultAttr = DSA_shared;
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Stack.back().DefaultAttrLoc = Loc;
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}
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DefaultDataSharingAttributes getDefaultDSA() const {
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return Stack.back().DefaultAttr;
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}
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SourceLocation getDefaultDSALocation() const {
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return Stack.back().DefaultAttrLoc;
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}
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/// \brief Checks if the specified variable is a threadprivate.
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bool isThreadPrivate(VarDecl *D) {
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DSAVarData DVar = getTopDSA(D, false);
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return isOpenMPThreadPrivate(DVar.CKind);
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}
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/// \brief Marks current region as ordered (it has an 'ordered' clause).
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void setOrderedRegion(bool IsOrdered = true) {
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Stack.back().OrderedRegion = IsOrdered;
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}
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/// \brief Returns true, if parent region is ordered (has associated
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/// 'ordered' clause), false - otherwise.
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bool isParentOrderedRegion() const {
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if (Stack.size() > 2)
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return Stack[Stack.size() - 2].OrderedRegion;
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return false;
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}
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/// \brief Marks current target region as one with closely nested teams
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/// region.
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void setParentTeamsRegionLoc(SourceLocation TeamsRegionLoc) {
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if (Stack.size() > 2)
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Stack[Stack.size() - 2].InnerTeamsRegionLoc = TeamsRegionLoc;
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}
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/// \brief Returns true, if current region has closely nested teams region.
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bool hasInnerTeamsRegion() const {
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return getInnerTeamsRegionLoc().isValid();
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}
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/// \brief Returns location of the nested teams region (if any).
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SourceLocation getInnerTeamsRegionLoc() const {
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if (Stack.size() > 1)
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return Stack.back().InnerTeamsRegionLoc;
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return SourceLocation();
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}
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Scope *getCurScope() const { return Stack.back().CurScope; }
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Scope *getCurScope() { return Stack.back().CurScope; }
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SourceLocation getConstructLoc() { return Stack.back().ConstructLoc; }
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};
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bool isParallelOrTaskRegion(OpenMPDirectiveKind DKind) {
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return isOpenMPParallelDirective(DKind) || DKind == OMPD_task ||
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isOpenMPTeamsDirective(DKind) || DKind == OMPD_unknown;
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}
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} // namespace
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DSAStackTy::DSAVarData DSAStackTy::getDSA(StackTy::reverse_iterator Iter,
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VarDecl *D) {
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DSAVarData DVar;
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if (Iter == std::prev(Stack.rend())) {
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a region but not in construct]
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// File-scope or namespace-scope variables referenced in called routines
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// in the region are shared unless they appear in a threadprivate
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// directive.
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if (!D->isFunctionOrMethodVarDecl() && !isa<ParmVarDecl>(D))
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DVar.CKind = OMPC_shared;
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// OpenMP [2.9.1.2, Data-sharing Attribute Rules for Variables Referenced
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// in a region but not in construct]
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// Variables with static storage duration that are declared in called
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// routines in the region are shared.
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if (D->hasGlobalStorage())
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DVar.CKind = OMPC_shared;
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return DVar;
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}
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DVar.DKind = Iter->Directive;
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, predetermined, p.1]
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// Variables with automatic storage duration that are declared in a scope
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// inside the construct are private.
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if (isOpenMPLocal(D, Iter) && D->isLocalVarDecl() &&
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(D->getStorageClass() == SC_Auto || D->getStorageClass() == SC_None)) {
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DVar.CKind = OMPC_private;
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return DVar;
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}
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// Explicitly specified attributes and local variables with predetermined
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// attributes.
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if (Iter->SharingMap.count(D)) {
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DVar.RefExpr = Iter->SharingMap[D].RefExpr;
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DVar.CKind = Iter->SharingMap[D].Attributes;
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DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
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return DVar;
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, implicitly determined, p.1]
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// In a parallel or task construct, the data-sharing attributes of these
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// variables are determined by the default clause, if present.
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switch (Iter->DefaultAttr) {
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case DSA_shared:
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DVar.CKind = OMPC_shared;
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DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
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return DVar;
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case DSA_none:
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return DVar;
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case DSA_unspecified:
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, implicitly determined, p.2]
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// In a parallel construct, if no default clause is present, these
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// variables are shared.
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DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
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if (isOpenMPParallelDirective(DVar.DKind) ||
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isOpenMPTeamsDirective(DVar.DKind)) {
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DVar.CKind = OMPC_shared;
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return DVar;
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, implicitly determined, p.4]
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// In a task construct, if no default clause is present, a variable that in
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// the enclosing context is determined to be shared by all implicit tasks
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// bound to the current team is shared.
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if (DVar.DKind == OMPD_task) {
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DSAVarData DVarTemp;
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for (StackTy::reverse_iterator I = std::next(Iter),
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EE = std::prev(Stack.rend());
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I != EE; ++I) {
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
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// Referenced
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// in a Construct, implicitly determined, p.6]
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// In a task construct, if no default clause is present, a variable
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// whose data-sharing attribute is not determined by the rules above is
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// firstprivate.
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DVarTemp = getDSA(I, D);
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if (DVarTemp.CKind != OMPC_shared) {
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DVar.RefExpr = nullptr;
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DVar.DKind = OMPD_task;
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DVar.CKind = OMPC_firstprivate;
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return DVar;
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}
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if (isParallelOrTaskRegion(I->Directive))
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break;
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}
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DVar.DKind = OMPD_task;
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DVar.CKind =
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(DVarTemp.CKind == OMPC_unknown) ? OMPC_firstprivate : OMPC_shared;
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return DVar;
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}
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, implicitly determined, p.3]
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// For constructs other than task, if no default clause is present, these
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// variables inherit their data-sharing attributes from the enclosing
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// context.
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return getDSA(std::next(Iter), D);
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}
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DeclRefExpr *DSAStackTy::addUniqueAligned(VarDecl *D, DeclRefExpr *NewDE) {
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assert(Stack.size() > 1 && "Data sharing attributes stack is empty");
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auto It = Stack.back().AlignedMap.find(D);
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if (It == Stack.back().AlignedMap.end()) {
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assert(NewDE && "Unexpected nullptr expr to be added into aligned map");
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Stack.back().AlignedMap[D] = NewDE;
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return nullptr;
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} else {
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assert(It->second && "Unexpected nullptr expr in the aligned map");
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return It->second;
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}
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return nullptr;
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}
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void DSAStackTy::addDSA(VarDecl *D, DeclRefExpr *E, OpenMPClauseKind A) {
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if (A == OMPC_threadprivate) {
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Stack[0].SharingMap[D].Attributes = A;
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Stack[0].SharingMap[D].RefExpr = E;
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} else {
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assert(Stack.size() > 1 && "Data-sharing attributes stack is empty");
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Stack.back().SharingMap[D].Attributes = A;
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Stack.back().SharingMap[D].RefExpr = E;
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}
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}
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bool DSAStackTy::isOpenMPLocal(VarDecl *D, StackTy::reverse_iterator Iter) {
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if (Stack.size() > 2) {
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reverse_iterator I = Iter, E = std::prev(Stack.rend());
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Scope *TopScope = nullptr;
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while (I != E && !isParallelOrTaskRegion(I->Directive)) {
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++I;
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}
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if (I == E)
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return false;
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TopScope = I->CurScope ? I->CurScope->getParent() : nullptr;
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Scope *CurScope = getCurScope();
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while (CurScope != TopScope && !CurScope->isDeclScope(D)) {
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CurScope = CurScope->getParent();
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}
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return CurScope != TopScope;
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}
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return false;
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}
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DSAStackTy::DSAVarData DSAStackTy::getTopDSA(VarDecl *D, bool FromParent) {
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DSAVarData DVar;
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, predetermined, p.1]
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// Variables appearing in threadprivate directives are threadprivate.
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if (D->getTLSKind() != VarDecl::TLS_None) {
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DVar.CKind = OMPC_threadprivate;
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return DVar;
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}
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if (Stack[0].SharingMap.count(D)) {
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DVar.RefExpr = Stack[0].SharingMap[D].RefExpr;
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DVar.CKind = OMPC_threadprivate;
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return DVar;
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, predetermined, p.1]
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// Variables with automatic storage duration that are declared in a scope
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// inside the construct are private.
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OpenMPDirectiveKind Kind =
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FromParent ? getParentDirective() : getCurrentDirective();
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auto StartI = std::next(Stack.rbegin());
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auto EndI = std::prev(Stack.rend());
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if (FromParent && StartI != EndI) {
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StartI = std::next(StartI);
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}
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if (!isParallelOrTaskRegion(Kind)) {
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if (isOpenMPLocal(D, StartI) &&
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((D->isLocalVarDecl() && (D->getStorageClass() == SC_Auto ||
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D->getStorageClass() == SC_None)) ||
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isa<ParmVarDecl>(D))) {
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DVar.CKind = OMPC_private;
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return DVar;
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}
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, predetermined, p.4]
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// Static data members are shared.
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if (D->isStaticDataMember()) {
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// Variables with const-qualified type having no mutable member may be
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// listed in a firstprivate clause, even if they are static data members.
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DSAVarData DVarTemp = hasDSA(D, MatchesAnyClause(OMPC_firstprivate),
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MatchesAlways(), FromParent);
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if (DVarTemp.CKind == OMPC_firstprivate && DVarTemp.RefExpr)
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return DVar;
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DVar.CKind = OMPC_shared;
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return DVar;
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}
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QualType Type = D->getType().getNonReferenceType().getCanonicalType();
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bool IsConstant = Type.isConstant(SemaRef.getASTContext());
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while (Type->isArrayType()) {
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QualType ElemType = cast<ArrayType>(Type.getTypePtr())->getElementType();
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Type = ElemType.getNonReferenceType().getCanonicalType();
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, predetermined, p.6]
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// Variables with const qualified type having no mutable member are
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// shared.
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CXXRecordDecl *RD =
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SemaRef.getLangOpts().CPlusPlus ? Type->getAsCXXRecordDecl() : nullptr;
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if (IsConstant &&
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!(SemaRef.getLangOpts().CPlusPlus && RD && RD->hasMutableFields())) {
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// Variables with const-qualified type having no mutable member may be
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// listed in a firstprivate clause, even if they are static data members.
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DSAVarData DVarTemp = hasDSA(D, MatchesAnyClause(OMPC_firstprivate),
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MatchesAlways(), FromParent);
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if (DVarTemp.CKind == OMPC_firstprivate && DVarTemp.RefExpr)
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return DVar;
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DVar.CKind = OMPC_shared;
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return DVar;
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}
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// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
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// in a Construct, C/C++, predetermined, p.7]
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|
// Variables with static storage duration that are declared in a scope
|
|
// inside the construct are shared.
|
|
if (D->isStaticLocal()) {
|
|
DVar.CKind = OMPC_shared;
|
|
return DVar;
|
|
}
|
|
|
|
// Explicitly specified attributes and local variables with predetermined
|
|
// attributes.
|
|
auto I = std::prev(StartI);
|
|
if (I->SharingMap.count(D)) {
|
|
DVar.RefExpr = I->SharingMap[D].RefExpr;
|
|
DVar.CKind = I->SharingMap[D].Attributes;
|
|
DVar.ImplicitDSALoc = I->DefaultAttrLoc;
|
|
}
|
|
|
|
return DVar;
|
|
}
|
|
|
|
DSAStackTy::DSAVarData DSAStackTy::getImplicitDSA(VarDecl *D, bool FromParent) {
|
|
auto StartI = Stack.rbegin();
|
|
auto EndI = std::prev(Stack.rend());
|
|
if (FromParent && StartI != EndI) {
|
|
StartI = std::next(StartI);
|
|
}
|
|
return getDSA(StartI, D);
|
|
}
|
|
|
|
template <class ClausesPredicate, class DirectivesPredicate>
|
|
DSAStackTy::DSAVarData DSAStackTy::hasDSA(VarDecl *D, ClausesPredicate CPred,
|
|
DirectivesPredicate DPred,
|
|
bool FromParent) {
|
|
auto StartI = std::next(Stack.rbegin());
|
|
auto EndI = std::prev(Stack.rend());
|
|
if (FromParent && StartI != EndI) {
|
|
StartI = std::next(StartI);
|
|
}
|
|
for (auto I = StartI, EE = EndI; I != EE; ++I) {
|
|
if (!DPred(I->Directive) && !isParallelOrTaskRegion(I->Directive))
|
|
continue;
|
|
DSAVarData DVar = getDSA(I, D);
|
|
if (CPred(DVar.CKind))
|
|
return DVar;
|
|
}
|
|
return DSAVarData();
|
|
}
|
|
|
|
template <class ClausesPredicate, class DirectivesPredicate>
|
|
DSAStackTy::DSAVarData
|
|
DSAStackTy::hasInnermostDSA(VarDecl *D, ClausesPredicate CPred,
|
|
DirectivesPredicate DPred, bool FromParent) {
|
|
auto StartI = std::next(Stack.rbegin());
|
|
auto EndI = std::prev(Stack.rend());
|
|
if (FromParent && StartI != EndI) {
|
|
StartI = std::next(StartI);
|
|
}
|
|
for (auto I = StartI, EE = EndI; I != EE; ++I) {
|
|
if (!DPred(I->Directive))
|
|
break;
|
|
DSAVarData DVar = getDSA(I, D);
|
|
if (CPred(DVar.CKind))
|
|
return DVar;
|
|
return DSAVarData();
|
|
}
|
|
return DSAVarData();
|
|
}
|
|
|
|
template <class NamedDirectivesPredicate>
|
|
bool DSAStackTy::hasDirective(NamedDirectivesPredicate DPred, bool FromParent) {
|
|
auto StartI = std::next(Stack.rbegin());
|
|
auto EndI = std::prev(Stack.rend());
|
|
if (FromParent && StartI != EndI) {
|
|
StartI = std::next(StartI);
|
|
}
|
|
for (auto I = StartI, EE = EndI; I != EE; ++I) {
|
|
if (DPred(I->Directive, I->DirectiveName, I->ConstructLoc))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void Sema::InitDataSharingAttributesStack() {
|
|
VarDataSharingAttributesStack = new DSAStackTy(*this);
|
|
}
|
|
|
|
#define DSAStack static_cast<DSAStackTy *>(VarDataSharingAttributesStack)
|
|
|
|
void Sema::DestroyDataSharingAttributesStack() { delete DSAStack; }
|
|
|
|
void Sema::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
|
|
const DeclarationNameInfo &DirName,
|
|
Scope *CurScope, SourceLocation Loc) {
|
|
DSAStack->push(DKind, DirName, CurScope, Loc);
|
|
PushExpressionEvaluationContext(PotentiallyEvaluated);
|
|
}
|
|
|
|
void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
|
|
// OpenMP [2.14.3.5, Restrictions, C/C++, p.1]
|
|
// A variable of class type (or array thereof) that appears in a lastprivate
|
|
// clause requires an accessible, unambiguous default constructor for the
|
|
// class type, unless the list item is also specified in a firstprivate
|
|
// clause.
|
|
if (auto D = dyn_cast_or_null<OMPExecutableDirective>(CurDirective)) {
|
|
for (auto C : D->clauses()) {
|
|
if (auto Clause = dyn_cast<OMPLastprivateClause>(C)) {
|
|
for (auto VarRef : Clause->varlists()) {
|
|
if (VarRef->isValueDependent() || VarRef->isTypeDependent())
|
|
continue;
|
|
auto VD = cast<VarDecl>(cast<DeclRefExpr>(VarRef)->getDecl());
|
|
auto DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.CKind == OMPC_lastprivate) {
|
|
SourceLocation ELoc = VarRef->getExprLoc();
|
|
auto Type = VarRef->getType();
|
|
if (Type->isArrayType())
|
|
Type = QualType(Type->getArrayElementTypeNoTypeQual(), 0);
|
|
CXXRecordDecl *RD =
|
|
getLangOpts().CPlusPlus ? Type->getAsCXXRecordDecl() : nullptr;
|
|
// FIXME This code must be replaced by actual constructing of the
|
|
// lastprivate variable.
|
|
if (RD) {
|
|
CXXConstructorDecl *CD = LookupDefaultConstructor(RD);
|
|
PartialDiagnostic PD =
|
|
PartialDiagnostic(PartialDiagnostic::NullDiagnostic());
|
|
if (!CD ||
|
|
CheckConstructorAccess(
|
|
ELoc, CD, InitializedEntity::InitializeTemporary(Type),
|
|
CD->getAccess(), PD) == AR_inaccessible ||
|
|
CD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_lastprivate) << 0;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(), IsDecl ? diag::note_previous_decl
|
|
: diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, CD);
|
|
DiagnoseUseOfDecl(CD, ELoc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
DSAStack->pop();
|
|
DiscardCleanupsInEvaluationContext();
|
|
PopExpressionEvaluationContext();
|
|
}
|
|
|
|
namespace {
|
|
|
|
class VarDeclFilterCCC : public CorrectionCandidateCallback {
|
|
private:
|
|
Sema &SemaRef;
|
|
|
|
public:
|
|
explicit VarDeclFilterCCC(Sema &S) : SemaRef(S) {}
|
|
bool ValidateCandidate(const TypoCorrection &Candidate) override {
|
|
NamedDecl *ND = Candidate.getCorrectionDecl();
|
|
if (VarDecl *VD = dyn_cast_or_null<VarDecl>(ND)) {
|
|
return VD->hasGlobalStorage() &&
|
|
SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(),
|
|
SemaRef.getCurScope());
|
|
}
|
|
return false;
|
|
}
|
|
};
|
|
} // namespace
|
|
|
|
ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
|
|
CXXScopeSpec &ScopeSpec,
|
|
const DeclarationNameInfo &Id) {
|
|
LookupResult Lookup(*this, Id, LookupOrdinaryName);
|
|
LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
|
|
|
|
if (Lookup.isAmbiguous())
|
|
return ExprError();
|
|
|
|
VarDecl *VD;
|
|
if (!Lookup.isSingleResult()) {
|
|
if (TypoCorrection Corrected = CorrectTypo(
|
|
Id, LookupOrdinaryName, CurScope, nullptr,
|
|
llvm::make_unique<VarDeclFilterCCC>(*this), CTK_ErrorRecovery)) {
|
|
diagnoseTypo(Corrected,
|
|
PDiag(Lookup.empty()
|
|
? diag::err_undeclared_var_use_suggest
|
|
: diag::err_omp_expected_var_arg_suggest)
|
|
<< Id.getName());
|
|
VD = Corrected.getCorrectionDeclAs<VarDecl>();
|
|
} else {
|
|
Diag(Id.getLoc(), Lookup.empty() ? diag::err_undeclared_var_use
|
|
: diag::err_omp_expected_var_arg)
|
|
<< Id.getName();
|
|
return ExprError();
|
|
}
|
|
} else {
|
|
if (!(VD = Lookup.getAsSingle<VarDecl>())) {
|
|
Diag(Id.getLoc(), diag::err_omp_expected_var_arg) << Id.getName();
|
|
Diag(Lookup.getFoundDecl()->getLocation(), diag::note_declared_at);
|
|
return ExprError();
|
|
}
|
|
}
|
|
Lookup.suppressDiagnostics();
|
|
|
|
// OpenMP [2.9.2, Syntax, C/C++]
|
|
// Variables must be file-scope, namespace-scope, or static block-scope.
|
|
if (!VD->hasGlobalStorage()) {
|
|
Diag(Id.getLoc(), diag::err_omp_global_var_arg)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << !VD->isStaticLocal();
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
return ExprError();
|
|
}
|
|
|
|
VarDecl *CanonicalVD = VD->getCanonicalDecl();
|
|
NamedDecl *ND = cast<NamedDecl>(CanonicalVD);
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.2]
|
|
// A threadprivate directive for file-scope variables must appear outside
|
|
// any definition or declaration.
|
|
if (CanonicalVD->getDeclContext()->isTranslationUnit() &&
|
|
!getCurLexicalContext()->isTranslationUnit()) {
|
|
Diag(Id.getLoc(), diag::err_omp_var_scope)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << VD;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
return ExprError();
|
|
}
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.3]
|
|
// A threadprivate directive for static class member variables must appear
|
|
// in the class definition, in the same scope in which the member
|
|
// variables are declared.
|
|
if (CanonicalVD->isStaticDataMember() &&
|
|
!CanonicalVD->getDeclContext()->Equals(getCurLexicalContext())) {
|
|
Diag(Id.getLoc(), diag::err_omp_var_scope)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << VD;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
return ExprError();
|
|
}
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.4]
|
|
// A threadprivate directive for namespace-scope variables must appear
|
|
// outside any definition or declaration other than the namespace
|
|
// definition itself.
|
|
if (CanonicalVD->getDeclContext()->isNamespace() &&
|
|
(!getCurLexicalContext()->isFileContext() ||
|
|
!getCurLexicalContext()->Encloses(CanonicalVD->getDeclContext()))) {
|
|
Diag(Id.getLoc(), diag::err_omp_var_scope)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << VD;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
return ExprError();
|
|
}
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.6]
|
|
// A threadprivate directive for static block-scope variables must appear
|
|
// in the scope of the variable and not in a nested scope.
|
|
if (CanonicalVD->isStaticLocal() && CurScope &&
|
|
!isDeclInScope(ND, getCurLexicalContext(), CurScope)) {
|
|
Diag(Id.getLoc(), diag::err_omp_var_scope)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << VD;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
return ExprError();
|
|
}
|
|
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.2-6]
|
|
// A threadprivate directive must lexically precede all references to any
|
|
// of the variables in its list.
|
|
if (VD->isUsed()) {
|
|
Diag(Id.getLoc(), diag::err_omp_var_used)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << VD;
|
|
return ExprError();
|
|
}
|
|
|
|
QualType ExprType = VD->getType().getNonReferenceType();
|
|
ExprResult DE = BuildDeclRefExpr(VD, ExprType, VK_LValue, Id.getLoc());
|
|
return DE;
|
|
}
|
|
|
|
Sema::DeclGroupPtrTy
|
|
Sema::ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
|
|
ArrayRef<Expr *> VarList) {
|
|
if (OMPThreadPrivateDecl *D = CheckOMPThreadPrivateDecl(Loc, VarList)) {
|
|
CurContext->addDecl(D);
|
|
return DeclGroupPtrTy::make(DeclGroupRef(D));
|
|
}
|
|
return DeclGroupPtrTy();
|
|
}
|
|
|
|
namespace {
|
|
class LocalVarRefChecker : public ConstStmtVisitor<LocalVarRefChecker, bool> {
|
|
Sema &SemaRef;
|
|
|
|
public:
|
|
bool VisitDeclRefExpr(const DeclRefExpr *E) {
|
|
if (auto VD = dyn_cast<VarDecl>(E->getDecl())) {
|
|
if (VD->hasLocalStorage()) {
|
|
SemaRef.Diag(E->getLocStart(),
|
|
diag::err_omp_local_var_in_threadprivate_init)
|
|
<< E->getSourceRange();
|
|
SemaRef.Diag(VD->getLocation(), diag::note_defined_here)
|
|
<< VD << VD->getSourceRange();
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
bool VisitStmt(const Stmt *S) {
|
|
for (auto Child : S->children()) {
|
|
if (Child && Visit(Child))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
explicit LocalVarRefChecker(Sema &SemaRef) : SemaRef(SemaRef) {}
|
|
};
|
|
} // namespace
|
|
|
|
OMPThreadPrivateDecl *
|
|
Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
DeclRefExpr *DE = cast<DeclRefExpr>(RefExpr);
|
|
VarDecl *VD = cast<VarDecl>(DE->getDecl());
|
|
SourceLocation ILoc = DE->getExprLoc();
|
|
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.10]
|
|
// A threadprivate variable must not have an incomplete type.
|
|
if (RequireCompleteType(ILoc, VD->getType(),
|
|
diag::err_omp_threadprivate_incomplete_type)) {
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.2, Restrictions, C/C++, p.10]
|
|
// A threadprivate variable must not have a reference type.
|
|
if (VD->getType()->isReferenceType()) {
|
|
Diag(ILoc, diag::err_omp_ref_type_arg)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate) << VD->getType();
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// Check if this is a TLS variable.
|
|
if (VD->getTLSKind()) {
|
|
Diag(ILoc, diag::err_omp_var_thread_local) << VD;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// Check if initial value of threadprivate variable reference variable with
|
|
// local storage (it is not supported by runtime).
|
|
if (auto Init = VD->getAnyInitializer()) {
|
|
LocalVarRefChecker Checker(*this);
|
|
if (Checker.Visit(Init))
|
|
continue;
|
|
}
|
|
|
|
Vars.push_back(RefExpr);
|
|
DSAStack->addDSA(VD, DE, OMPC_threadprivate);
|
|
}
|
|
OMPThreadPrivateDecl *D = nullptr;
|
|
if (!Vars.empty()) {
|
|
D = OMPThreadPrivateDecl::Create(Context, getCurLexicalContext(), Loc,
|
|
Vars);
|
|
D->setAccess(AS_public);
|
|
}
|
|
return D;
|
|
}
|
|
|
|
static void ReportOriginalDSA(Sema &SemaRef, DSAStackTy *Stack,
|
|
const VarDecl *VD, DSAStackTy::DSAVarData DVar,
|
|
bool IsLoopIterVar = false) {
|
|
if (DVar.RefExpr) {
|
|
SemaRef.Diag(DVar.RefExpr->getExprLoc(), diag::note_omp_explicit_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind);
|
|
return;
|
|
}
|
|
enum {
|
|
PDSA_StaticMemberShared,
|
|
PDSA_StaticLocalVarShared,
|
|
PDSA_LoopIterVarPrivate,
|
|
PDSA_LoopIterVarLinear,
|
|
PDSA_LoopIterVarLastprivate,
|
|
PDSA_ConstVarShared,
|
|
PDSA_GlobalVarShared,
|
|
PDSA_TaskVarFirstprivate,
|
|
PDSA_LocalVarPrivate,
|
|
PDSA_Implicit
|
|
} Reason = PDSA_Implicit;
|
|
bool ReportHint = false;
|
|
auto ReportLoc = VD->getLocation();
|
|
if (IsLoopIterVar) {
|
|
if (DVar.CKind == OMPC_private)
|
|
Reason = PDSA_LoopIterVarPrivate;
|
|
else if (DVar.CKind == OMPC_lastprivate)
|
|
Reason = PDSA_LoopIterVarLastprivate;
|
|
else
|
|
Reason = PDSA_LoopIterVarLinear;
|
|
} else if (DVar.DKind == OMPD_task && DVar.CKind == OMPC_firstprivate) {
|
|
Reason = PDSA_TaskVarFirstprivate;
|
|
ReportLoc = DVar.ImplicitDSALoc;
|
|
} else if (VD->isStaticLocal())
|
|
Reason = PDSA_StaticLocalVarShared;
|
|
else if (VD->isStaticDataMember())
|
|
Reason = PDSA_StaticMemberShared;
|
|
else if (VD->isFileVarDecl())
|
|
Reason = PDSA_GlobalVarShared;
|
|
else if (VD->getType().isConstant(SemaRef.getASTContext()))
|
|
Reason = PDSA_ConstVarShared;
|
|
else if (VD->isLocalVarDecl() && DVar.CKind == OMPC_private) {
|
|
ReportHint = true;
|
|
Reason = PDSA_LocalVarPrivate;
|
|
}
|
|
if (Reason != PDSA_Implicit) {
|
|
SemaRef.Diag(ReportLoc, diag::note_omp_predetermined_dsa)
|
|
<< Reason << ReportHint
|
|
<< getOpenMPDirectiveName(Stack->getCurrentDirective());
|
|
} else if (DVar.ImplicitDSALoc.isValid()) {
|
|
SemaRef.Diag(DVar.ImplicitDSALoc, diag::note_omp_implicit_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind);
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
class DSAAttrChecker : public StmtVisitor<DSAAttrChecker, void> {
|
|
DSAStackTy *Stack;
|
|
Sema &SemaRef;
|
|
bool ErrorFound;
|
|
CapturedStmt *CS;
|
|
llvm::SmallVector<Expr *, 8> ImplicitFirstprivate;
|
|
llvm::DenseMap<VarDecl *, Expr *> VarsWithInheritedDSA;
|
|
|
|
public:
|
|
void VisitDeclRefExpr(DeclRefExpr *E) {
|
|
if (auto *VD = dyn_cast<VarDecl>(E->getDecl())) {
|
|
// Skip internally declared variables.
|
|
if (VD->isLocalVarDecl() && !CS->capturesVariable(VD))
|
|
return;
|
|
|
|
auto DVar = Stack->getTopDSA(VD, false);
|
|
// Check if the variable has explicit DSA set and stop analysis if it so.
|
|
if (DVar.RefExpr) return;
|
|
|
|
auto ELoc = E->getExprLoc();
|
|
auto DKind = Stack->getCurrentDirective();
|
|
// The default(none) clause requires that each variable that is referenced
|
|
// in the construct, and does not have a predetermined data-sharing
|
|
// attribute, must have its data-sharing attribute explicitly determined
|
|
// by being listed in a data-sharing attribute clause.
|
|
if (DVar.CKind == OMPC_unknown && Stack->getDefaultDSA() == DSA_none &&
|
|
isParallelOrTaskRegion(DKind) &&
|
|
VarsWithInheritedDSA.count(VD) == 0) {
|
|
VarsWithInheritedDSA[VD] = E;
|
|
return;
|
|
}
|
|
|
|
// OpenMP [2.9.3.6, Restrictions, p.2]
|
|
// A list item that appears in a reduction clause of the innermost
|
|
// enclosing worksharing or parallel construct may not be accessed in an
|
|
// explicit task.
|
|
DVar = Stack->hasInnermostDSA(VD, MatchesAnyClause(OMPC_reduction),
|
|
[](OpenMPDirectiveKind K) -> bool {
|
|
return isOpenMPParallelDirective(K) ||
|
|
isOpenMPWorksharingDirective(K) ||
|
|
isOpenMPTeamsDirective(K);
|
|
},
|
|
false);
|
|
if (DKind == OMPD_task && DVar.CKind == OMPC_reduction) {
|
|
ErrorFound = true;
|
|
SemaRef.Diag(ELoc, diag::err_omp_reduction_in_task);
|
|
ReportOriginalDSA(SemaRef, Stack, VD, DVar);
|
|
return;
|
|
}
|
|
|
|
// Define implicit data-sharing attributes for task.
|
|
DVar = Stack->getImplicitDSA(VD, false);
|
|
if (DKind == OMPD_task && DVar.CKind != OMPC_shared)
|
|
ImplicitFirstprivate.push_back(E);
|
|
}
|
|
}
|
|
void VisitOMPExecutableDirective(OMPExecutableDirective *S) {
|
|
for (auto *C : S->clauses()) {
|
|
// Skip analysis of arguments of implicitly defined firstprivate clause
|
|
// for task directives.
|
|
if (C && (!isa<OMPFirstprivateClause>(C) || C->getLocStart().isValid()))
|
|
for (auto *CC : C->children()) {
|
|
if (CC)
|
|
Visit(CC);
|
|
}
|
|
}
|
|
}
|
|
void VisitStmt(Stmt *S) {
|
|
for (auto *C : S->children()) {
|
|
if (C && !isa<OMPExecutableDirective>(C))
|
|
Visit(C);
|
|
}
|
|
}
|
|
|
|
bool isErrorFound() { return ErrorFound; }
|
|
ArrayRef<Expr *> getImplicitFirstprivate() { return ImplicitFirstprivate; }
|
|
llvm::DenseMap<VarDecl *, Expr *> &getVarsWithInheritedDSA() {
|
|
return VarsWithInheritedDSA;
|
|
}
|
|
|
|
DSAAttrChecker(DSAStackTy *S, Sema &SemaRef, CapturedStmt *CS)
|
|
: Stack(S), SemaRef(SemaRef), ErrorFound(false), CS(CS) {}
|
|
};
|
|
} // namespace
|
|
|
|
void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
|
|
switch (DKind) {
|
|
case OMPD_parallel: {
|
|
QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1);
|
|
QualType KmpInt32PtrTy = Context.getPointerType(KmpInt32Ty);
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(".global_tid.", KmpInt32PtrTy),
|
|
std::make_pair(".bound_tid.", KmpInt32PtrTy),
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_simd: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_for: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_for_simd: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_sections: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_section: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_single: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_master: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_critical: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_parallel_for: {
|
|
QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1);
|
|
QualType KmpInt32PtrTy = Context.getPointerType(KmpInt32Ty);
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(".global_tid.", KmpInt32PtrTy),
|
|
std::make_pair(".bound_tid.", KmpInt32PtrTy),
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_parallel_for_simd: {
|
|
QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1);
|
|
QualType KmpInt32PtrTy = Context.getPointerType(KmpInt32Ty);
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(".global_tid.", KmpInt32PtrTy),
|
|
std::make_pair(".bound_tid.", KmpInt32PtrTy),
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_parallel_sections: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_task: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_taskyield: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_barrier: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_taskwait: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_flush: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_ordered: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_atomic: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_target: {
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_teams: {
|
|
QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1);
|
|
QualType KmpInt32PtrTy = Context.getPointerType(KmpInt32Ty);
|
|
Sema::CapturedParamNameType Params[] = {
|
|
std::make_pair(".global_tid.", KmpInt32PtrTy),
|
|
std::make_pair(".bound_tid.", KmpInt32PtrTy),
|
|
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
|
};
|
|
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
|
Params);
|
|
break;
|
|
}
|
|
case OMPD_threadprivate:
|
|
llvm_unreachable("OpenMP Directive is not allowed");
|
|
case OMPD_unknown:
|
|
llvm_unreachable("Unknown OpenMP directive");
|
|
}
|
|
}
|
|
|
|
static bool CheckNestingOfRegions(Sema &SemaRef, DSAStackTy *Stack,
|
|
OpenMPDirectiveKind CurrentRegion,
|
|
const DeclarationNameInfo &CurrentName,
|
|
SourceLocation StartLoc) {
|
|
// Allowed nesting of constructs
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | Parent directive | Child directive | Closely (!), No-Closely(+), Both(*)|
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | parallel | parallel | * |
|
|
// | parallel | for | * |
|
|
// | parallel | for simd | * |
|
|
// | parallel | master | * |
|
|
// | parallel | critical | * |
|
|
// | parallel | simd | * |
|
|
// | parallel | sections | * |
|
|
// | parallel | section | + |
|
|
// | parallel | single | * |
|
|
// | parallel | parallel for | * |
|
|
// | parallel |parallel for simd| * |
|
|
// | parallel |parallel sections| * |
|
|
// | parallel | task | * |
|
|
// | parallel | taskyield | * |
|
|
// | parallel | barrier | * |
|
|
// | parallel | taskwait | * |
|
|
// | parallel | flush | * |
|
|
// | parallel | ordered | + |
|
|
// | parallel | atomic | * |
|
|
// | parallel | target | * |
|
|
// | parallel | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | for | parallel | * |
|
|
// | for | for | + |
|
|
// | for | for simd | + |
|
|
// | for | master | + |
|
|
// | for | critical | * |
|
|
// | for | simd | * |
|
|
// | for | sections | + |
|
|
// | for | section | + |
|
|
// | for | single | + |
|
|
// | for | parallel for | * |
|
|
// | for |parallel for simd| * |
|
|
// | for |parallel sections| * |
|
|
// | for | task | * |
|
|
// | for | taskyield | * |
|
|
// | for | barrier | + |
|
|
// | for | taskwait | * |
|
|
// | for | flush | * |
|
|
// | for | ordered | * (if construct is ordered) |
|
|
// | for | atomic | * |
|
|
// | for | target | * |
|
|
// | for | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | master | parallel | * |
|
|
// | master | for | + |
|
|
// | master | for simd | + |
|
|
// | master | master | * |
|
|
// | master | critical | * |
|
|
// | master | simd | * |
|
|
// | master | sections | + |
|
|
// | master | section | + |
|
|
// | master | single | + |
|
|
// | master | parallel for | * |
|
|
// | master |parallel for simd| * |
|
|
// | master |parallel sections| * |
|
|
// | master | task | * |
|
|
// | master | taskyield | * |
|
|
// | master | barrier | + |
|
|
// | master | taskwait | * |
|
|
// | master | flush | * |
|
|
// | master | ordered | + |
|
|
// | master | atomic | * |
|
|
// | master | target | * |
|
|
// | master | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | critical | parallel | * |
|
|
// | critical | for | + |
|
|
// | critical | for simd | + |
|
|
// | critical | master | * |
|
|
// | critical | critical | * (should have different names) |
|
|
// | critical | simd | * |
|
|
// | critical | sections | + |
|
|
// | critical | section | + |
|
|
// | critical | single | + |
|
|
// | critical | parallel for | * |
|
|
// | critical |parallel for simd| * |
|
|
// | critical |parallel sections| * |
|
|
// | critical | task | * |
|
|
// | critical | taskyield | * |
|
|
// | critical | barrier | + |
|
|
// | critical | taskwait | * |
|
|
// | critical | ordered | + |
|
|
// | critical | atomic | * |
|
|
// | critical | target | * |
|
|
// | critical | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | simd | parallel | |
|
|
// | simd | for | |
|
|
// | simd | for simd | |
|
|
// | simd | master | |
|
|
// | simd | critical | |
|
|
// | simd | simd | |
|
|
// | simd | sections | |
|
|
// | simd | section | |
|
|
// | simd | single | |
|
|
// | simd | parallel for | |
|
|
// | simd |parallel for simd| |
|
|
// | simd |parallel sections| |
|
|
// | simd | task | |
|
|
// | simd | taskyield | |
|
|
// | simd | barrier | |
|
|
// | simd | taskwait | |
|
|
// | simd | flush | |
|
|
// | simd | ordered | |
|
|
// | simd | atomic | |
|
|
// | simd | target | |
|
|
// | simd | teams | |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | for simd | parallel | |
|
|
// | for simd | for | |
|
|
// | for simd | for simd | |
|
|
// | for simd | master | |
|
|
// | for simd | critical | |
|
|
// | for simd | simd | |
|
|
// | for simd | sections | |
|
|
// | for simd | section | |
|
|
// | for simd | single | |
|
|
// | for simd | parallel for | |
|
|
// | for simd |parallel for simd| |
|
|
// | for simd |parallel sections| |
|
|
// | for simd | task | |
|
|
// | for simd | taskyield | |
|
|
// | for simd | barrier | |
|
|
// | for simd | taskwait | |
|
|
// | for simd | flush | |
|
|
// | for simd | ordered | |
|
|
// | for simd | atomic | |
|
|
// | for simd | target | |
|
|
// | for simd | teams | |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | parallel for simd| parallel | |
|
|
// | parallel for simd| for | |
|
|
// | parallel for simd| for simd | |
|
|
// | parallel for simd| master | |
|
|
// | parallel for simd| critical | |
|
|
// | parallel for simd| simd | |
|
|
// | parallel for simd| sections | |
|
|
// | parallel for simd| section | |
|
|
// | parallel for simd| single | |
|
|
// | parallel for simd| parallel for | |
|
|
// | parallel for simd|parallel for simd| |
|
|
// | parallel for simd|parallel sections| |
|
|
// | parallel for simd| task | |
|
|
// | parallel for simd| taskyield | |
|
|
// | parallel for simd| barrier | |
|
|
// | parallel for simd| taskwait | |
|
|
// | parallel for simd| flush | |
|
|
// | parallel for simd| ordered | |
|
|
// | parallel for simd| atomic | |
|
|
// | parallel for simd| target | |
|
|
// | parallel for simd| teams | |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | sections | parallel | * |
|
|
// | sections | for | + |
|
|
// | sections | for simd | + |
|
|
// | sections | master | + |
|
|
// | sections | critical | * |
|
|
// | sections | simd | * |
|
|
// | sections | sections | + |
|
|
// | sections | section | * |
|
|
// | sections | single | + |
|
|
// | sections | parallel for | * |
|
|
// | sections |parallel for simd| * |
|
|
// | sections |parallel sections| * |
|
|
// | sections | task | * |
|
|
// | sections | taskyield | * |
|
|
// | sections | barrier | + |
|
|
// | sections | taskwait | * |
|
|
// | sections | flush | * |
|
|
// | sections | ordered | + |
|
|
// | sections | atomic | * |
|
|
// | sections | target | * |
|
|
// | sections | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | section | parallel | * |
|
|
// | section | for | + |
|
|
// | section | for simd | + |
|
|
// | section | master | + |
|
|
// | section | critical | * |
|
|
// | section | simd | * |
|
|
// | section | sections | + |
|
|
// | section | section | + |
|
|
// | section | single | + |
|
|
// | section | parallel for | * |
|
|
// | section |parallel for simd| * |
|
|
// | section |parallel sections| * |
|
|
// | section | task | * |
|
|
// | section | taskyield | * |
|
|
// | section | barrier | + |
|
|
// | section | taskwait | * |
|
|
// | section | flush | * |
|
|
// | section | ordered | + |
|
|
// | section | atomic | * |
|
|
// | section | target | * |
|
|
// | section | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | single | parallel | * |
|
|
// | single | for | + |
|
|
// | single | for simd | + |
|
|
// | single | master | + |
|
|
// | single | critical | * |
|
|
// | single | simd | * |
|
|
// | single | sections | + |
|
|
// | single | section | + |
|
|
// | single | single | + |
|
|
// | single | parallel for | * |
|
|
// | single |parallel for simd| * |
|
|
// | single |parallel sections| * |
|
|
// | single | task | * |
|
|
// | single | taskyield | * |
|
|
// | single | barrier | + |
|
|
// | single | taskwait | * |
|
|
// | single | flush | * |
|
|
// | single | ordered | + |
|
|
// | single | atomic | * |
|
|
// | single | target | * |
|
|
// | single | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | parallel for | parallel | * |
|
|
// | parallel for | for | + |
|
|
// | parallel for | for simd | + |
|
|
// | parallel for | master | + |
|
|
// | parallel for | critical | * |
|
|
// | parallel for | simd | * |
|
|
// | parallel for | sections | + |
|
|
// | parallel for | section | + |
|
|
// | parallel for | single | + |
|
|
// | parallel for | parallel for | * |
|
|
// | parallel for |parallel for simd| * |
|
|
// | parallel for |parallel sections| * |
|
|
// | parallel for | task | * |
|
|
// | parallel for | taskyield | * |
|
|
// | parallel for | barrier | + |
|
|
// | parallel for | taskwait | * |
|
|
// | parallel for | flush | * |
|
|
// | parallel for | ordered | * (if construct is ordered) |
|
|
// | parallel for | atomic | * |
|
|
// | parallel for | target | * |
|
|
// | parallel for | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | parallel sections| parallel | * |
|
|
// | parallel sections| for | + |
|
|
// | parallel sections| for simd | + |
|
|
// | parallel sections| master | + |
|
|
// | parallel sections| critical | + |
|
|
// | parallel sections| simd | * |
|
|
// | parallel sections| sections | + |
|
|
// | parallel sections| section | * |
|
|
// | parallel sections| single | + |
|
|
// | parallel sections| parallel for | * |
|
|
// | parallel sections|parallel for simd| * |
|
|
// | parallel sections|parallel sections| * |
|
|
// | parallel sections| task | * |
|
|
// | parallel sections| taskyield | * |
|
|
// | parallel sections| barrier | + |
|
|
// | parallel sections| taskwait | * |
|
|
// | parallel sections| flush | * |
|
|
// | parallel sections| ordered | + |
|
|
// | parallel sections| atomic | * |
|
|
// | parallel sections| target | * |
|
|
// | parallel sections| teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | task | parallel | * |
|
|
// | task | for | + |
|
|
// | task | for simd | + |
|
|
// | task | master | + |
|
|
// | task | critical | * |
|
|
// | task | simd | * |
|
|
// | task | sections | + |
|
|
// | task | section | + |
|
|
// | task | single | + |
|
|
// | task | parallel for | * |
|
|
// | task |parallel for simd| * |
|
|
// | task |parallel sections| * |
|
|
// | task | task | * |
|
|
// | task | taskyield | * |
|
|
// | task | barrier | + |
|
|
// | task | taskwait | * |
|
|
// | task | flush | * |
|
|
// | task | ordered | + |
|
|
// | task | atomic | * |
|
|
// | task | target | * |
|
|
// | task | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | ordered | parallel | * |
|
|
// | ordered | for | + |
|
|
// | ordered | for simd | + |
|
|
// | ordered | master | * |
|
|
// | ordered | critical | * |
|
|
// | ordered | simd | * |
|
|
// | ordered | sections | + |
|
|
// | ordered | section | + |
|
|
// | ordered | single | + |
|
|
// | ordered | parallel for | * |
|
|
// | ordered |parallel for simd| * |
|
|
// | ordered |parallel sections| * |
|
|
// | ordered | task | * |
|
|
// | ordered | taskyield | * |
|
|
// | ordered | barrier | + |
|
|
// | ordered | taskwait | * |
|
|
// | ordered | flush | * |
|
|
// | ordered | ordered | + |
|
|
// | ordered | atomic | * |
|
|
// | ordered | target | * |
|
|
// | ordered | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | atomic | parallel | |
|
|
// | atomic | for | |
|
|
// | atomic | for simd | |
|
|
// | atomic | master | |
|
|
// | atomic | critical | |
|
|
// | atomic | simd | |
|
|
// | atomic | sections | |
|
|
// | atomic | section | |
|
|
// | atomic | single | |
|
|
// | atomic | parallel for | |
|
|
// | atomic |parallel for simd| |
|
|
// | atomic |parallel sections| |
|
|
// | atomic | task | |
|
|
// | atomic | taskyield | |
|
|
// | atomic | barrier | |
|
|
// | atomic | taskwait | |
|
|
// | atomic | flush | |
|
|
// | atomic | ordered | |
|
|
// | atomic | atomic | |
|
|
// | atomic | target | |
|
|
// | atomic | teams | |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | target | parallel | * |
|
|
// | target | for | * |
|
|
// | target | for simd | * |
|
|
// | target | master | * |
|
|
// | target | critical | * |
|
|
// | target | simd | * |
|
|
// | target | sections | * |
|
|
// | target | section | * |
|
|
// | target | single | * |
|
|
// | target | parallel for | * |
|
|
// | target |parallel for simd| * |
|
|
// | target |parallel sections| * |
|
|
// | target | task | * |
|
|
// | target | taskyield | * |
|
|
// | target | barrier | * |
|
|
// | target | taskwait | * |
|
|
// | target | flush | * |
|
|
// | target | ordered | * |
|
|
// | target | atomic | * |
|
|
// | target | target | * |
|
|
// | target | teams | * |
|
|
// +------------------+-----------------+------------------------------------+
|
|
// | teams | parallel | * |
|
|
// | teams | for | + |
|
|
// | teams | for simd | + |
|
|
// | teams | master | + |
|
|
// | teams | critical | + |
|
|
// | teams | simd | + |
|
|
// | teams | sections | + |
|
|
// | teams | section | + |
|
|
// | teams | single | + |
|
|
// | teams | parallel for | * |
|
|
// | teams |parallel for simd| * |
|
|
// | teams |parallel sections| * |
|
|
// | teams | task | + |
|
|
// | teams | taskyield | + |
|
|
// | teams | barrier | + |
|
|
// | teams | taskwait | + |
|
|
// | teams | flush | + |
|
|
// | teams | ordered | + |
|
|
// | teams | atomic | + |
|
|
// | teams | target | + |
|
|
// | teams | teams | + |
|
|
// +------------------+-----------------+------------------------------------+
|
|
if (Stack->getCurScope()) {
|
|
auto ParentRegion = Stack->getParentDirective();
|
|
bool NestingProhibited = false;
|
|
bool CloseNesting = true;
|
|
enum {
|
|
NoRecommend,
|
|
ShouldBeInParallelRegion,
|
|
ShouldBeInOrderedRegion,
|
|
ShouldBeInTargetRegion
|
|
} Recommend = NoRecommend;
|
|
if (isOpenMPSimdDirective(ParentRegion)) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// OpenMP constructs may not be nested inside a simd region.
|
|
SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region_simd);
|
|
return true;
|
|
}
|
|
if (ParentRegion == OMPD_atomic) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// OpenMP constructs may not be nested inside an atomic region.
|
|
SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region_atomic);
|
|
return true;
|
|
}
|
|
if (CurrentRegion == OMPD_section) {
|
|
// OpenMP [2.7.2, sections Construct, Restrictions]
|
|
// Orphaned section directives are prohibited. That is, the section
|
|
// directives must appear within the sections construct and must not be
|
|
// encountered elsewhere in the sections region.
|
|
if (ParentRegion != OMPD_sections &&
|
|
ParentRegion != OMPD_parallel_sections) {
|
|
SemaRef.Diag(StartLoc, diag::err_omp_orphaned_section_directive)
|
|
<< (ParentRegion != OMPD_unknown)
|
|
<< getOpenMPDirectiveName(ParentRegion);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
// Allow some constructs to be orphaned (they could be used in functions,
|
|
// called from OpenMP regions with the required preconditions).
|
|
if (ParentRegion == OMPD_unknown)
|
|
return false;
|
|
if (CurrentRegion == OMPD_master) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// A master region may not be closely nested inside a worksharing,
|
|
// atomic, or explicit task region.
|
|
NestingProhibited = isOpenMPWorksharingDirective(ParentRegion) ||
|
|
ParentRegion == OMPD_task;
|
|
} else if (CurrentRegion == OMPD_critical && CurrentName.getName()) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// A critical region may not be nested (closely or otherwise) inside a
|
|
// critical region with the same name. Note that this restriction is not
|
|
// sufficient to prevent deadlock.
|
|
SourceLocation PreviousCriticalLoc;
|
|
bool DeadLock =
|
|
Stack->hasDirective([CurrentName, &PreviousCriticalLoc](
|
|
OpenMPDirectiveKind K,
|
|
const DeclarationNameInfo &DNI,
|
|
SourceLocation Loc)
|
|
->bool {
|
|
if (K == OMPD_critical &&
|
|
DNI.getName() == CurrentName.getName()) {
|
|
PreviousCriticalLoc = Loc;
|
|
return true;
|
|
} else
|
|
return false;
|
|
},
|
|
false /* skip top directive */);
|
|
if (DeadLock) {
|
|
SemaRef.Diag(StartLoc,
|
|
diag::err_omp_prohibited_region_critical_same_name)
|
|
<< CurrentName.getName();
|
|
if (PreviousCriticalLoc.isValid())
|
|
SemaRef.Diag(PreviousCriticalLoc,
|
|
diag::note_omp_previous_critical_region);
|
|
return true;
|
|
}
|
|
} else if (CurrentRegion == OMPD_barrier) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// A barrier region may not be closely nested inside a worksharing,
|
|
// explicit task, critical, ordered, atomic, or master region.
|
|
NestingProhibited =
|
|
isOpenMPWorksharingDirective(ParentRegion) ||
|
|
ParentRegion == OMPD_task || ParentRegion == OMPD_master ||
|
|
ParentRegion == OMPD_critical || ParentRegion == OMPD_ordered;
|
|
} else if (isOpenMPWorksharingDirective(CurrentRegion) &&
|
|
!isOpenMPParallelDirective(CurrentRegion)) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// A worksharing region may not be closely nested inside a worksharing,
|
|
// explicit task, critical, ordered, atomic, or master region.
|
|
NestingProhibited =
|
|
isOpenMPWorksharingDirective(ParentRegion) ||
|
|
ParentRegion == OMPD_task || ParentRegion == OMPD_master ||
|
|
ParentRegion == OMPD_critical || ParentRegion == OMPD_ordered;
|
|
Recommend = ShouldBeInParallelRegion;
|
|
} else if (CurrentRegion == OMPD_ordered) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// An ordered region may not be closely nested inside a critical,
|
|
// atomic, or explicit task region.
|
|
// An ordered region must be closely nested inside a loop region (or
|
|
// parallel loop region) with an ordered clause.
|
|
NestingProhibited = ParentRegion == OMPD_critical ||
|
|
ParentRegion == OMPD_task ||
|
|
!Stack->isParentOrderedRegion();
|
|
Recommend = ShouldBeInOrderedRegion;
|
|
} else if (isOpenMPTeamsDirective(CurrentRegion)) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// If specified, a teams construct must be contained within a target
|
|
// construct.
|
|
NestingProhibited = ParentRegion != OMPD_target;
|
|
Recommend = ShouldBeInTargetRegion;
|
|
Stack->setParentTeamsRegionLoc(Stack->getConstructLoc());
|
|
}
|
|
if (!NestingProhibited && isOpenMPTeamsDirective(ParentRegion)) {
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// distribute, parallel, parallel sections, parallel workshare, and the
|
|
// parallel loop and parallel loop SIMD constructs are the only OpenMP
|
|
// constructs that can be closely nested in the teams region.
|
|
// TODO: add distribute directive.
|
|
NestingProhibited = !isOpenMPParallelDirective(CurrentRegion);
|
|
Recommend = ShouldBeInParallelRegion;
|
|
}
|
|
if (NestingProhibited) {
|
|
SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region)
|
|
<< CloseNesting << getOpenMPDirectiveName(ParentRegion) << Recommend
|
|
<< getOpenMPDirectiveName(CurrentRegion);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPExecutableDirective(OpenMPDirectiveKind Kind,
|
|
const DeclarationNameInfo &DirName,
|
|
ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
StmtResult Res = StmtError();
|
|
if (CheckNestingOfRegions(*this, DSAStack, Kind, DirName, StartLoc))
|
|
return StmtError();
|
|
|
|
llvm::SmallVector<OMPClause *, 8> ClausesWithImplicit;
|
|
llvm::DenseMap<VarDecl *, Expr *> VarsWithInheritedDSA;
|
|
bool ErrorFound = false;
|
|
ClausesWithImplicit.append(Clauses.begin(), Clauses.end());
|
|
if (AStmt) {
|
|
assert(isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
// Check default data sharing attributes for referenced variables.
|
|
DSAAttrChecker DSAChecker(DSAStack, *this, cast<CapturedStmt>(AStmt));
|
|
DSAChecker.Visit(cast<CapturedStmt>(AStmt)->getCapturedStmt());
|
|
if (DSAChecker.isErrorFound())
|
|
return StmtError();
|
|
// Generate list of implicitly defined firstprivate variables.
|
|
VarsWithInheritedDSA = DSAChecker.getVarsWithInheritedDSA();
|
|
|
|
if (!DSAChecker.getImplicitFirstprivate().empty()) {
|
|
if (OMPClause *Implicit = ActOnOpenMPFirstprivateClause(
|
|
DSAChecker.getImplicitFirstprivate(), SourceLocation(),
|
|
SourceLocation(), SourceLocation())) {
|
|
ClausesWithImplicit.push_back(Implicit);
|
|
ErrorFound = cast<OMPFirstprivateClause>(Implicit)->varlist_size() !=
|
|
DSAChecker.getImplicitFirstprivate().size();
|
|
} else
|
|
ErrorFound = true;
|
|
}
|
|
}
|
|
|
|
switch (Kind) {
|
|
case OMPD_parallel:
|
|
Res = ActOnOpenMPParallelDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc);
|
|
break;
|
|
case OMPD_simd:
|
|
Res = ActOnOpenMPSimdDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc,
|
|
VarsWithInheritedDSA);
|
|
break;
|
|
case OMPD_for:
|
|
Res = ActOnOpenMPForDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc,
|
|
VarsWithInheritedDSA);
|
|
break;
|
|
case OMPD_for_simd:
|
|
Res = ActOnOpenMPForSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc, VarsWithInheritedDSA);
|
|
break;
|
|
case OMPD_sections:
|
|
Res = ActOnOpenMPSectionsDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc);
|
|
break;
|
|
case OMPD_section:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp section' directive");
|
|
Res = ActOnOpenMPSectionDirective(AStmt, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_single:
|
|
Res = ActOnOpenMPSingleDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc);
|
|
break;
|
|
case OMPD_master:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp master' directive");
|
|
Res = ActOnOpenMPMasterDirective(AStmt, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_critical:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp critical' directive");
|
|
Res = ActOnOpenMPCriticalDirective(DirName, AStmt, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_parallel_for:
|
|
Res = ActOnOpenMPParallelForDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc, VarsWithInheritedDSA);
|
|
break;
|
|
case OMPD_parallel_for_simd:
|
|
Res = ActOnOpenMPParallelForSimdDirective(
|
|
ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
|
|
break;
|
|
case OMPD_parallel_sections:
|
|
Res = ActOnOpenMPParallelSectionsDirective(ClausesWithImplicit, AStmt,
|
|
StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_task:
|
|
Res =
|
|
ActOnOpenMPTaskDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_taskyield:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp taskyield' directive");
|
|
assert(AStmt == nullptr &&
|
|
"No associated statement allowed for 'omp taskyield' directive");
|
|
Res = ActOnOpenMPTaskyieldDirective(StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_barrier:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp barrier' directive");
|
|
assert(AStmt == nullptr &&
|
|
"No associated statement allowed for 'omp barrier' directive");
|
|
Res = ActOnOpenMPBarrierDirective(StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_taskwait:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp taskwait' directive");
|
|
assert(AStmt == nullptr &&
|
|
"No associated statement allowed for 'omp taskwait' directive");
|
|
Res = ActOnOpenMPTaskwaitDirective(StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_flush:
|
|
assert(AStmt == nullptr &&
|
|
"No associated statement allowed for 'omp flush' directive");
|
|
Res = ActOnOpenMPFlushDirective(ClausesWithImplicit, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_ordered:
|
|
assert(ClausesWithImplicit.empty() &&
|
|
"No clauses are allowed for 'omp ordered' directive");
|
|
Res = ActOnOpenMPOrderedDirective(AStmt, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_atomic:
|
|
Res = ActOnOpenMPAtomicDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc);
|
|
break;
|
|
case OMPD_teams:
|
|
Res =
|
|
ActOnOpenMPTeamsDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc);
|
|
break;
|
|
case OMPD_target:
|
|
Res = ActOnOpenMPTargetDirective(ClausesWithImplicit, AStmt, StartLoc,
|
|
EndLoc);
|
|
break;
|
|
case OMPD_threadprivate:
|
|
llvm_unreachable("OpenMP Directive is not allowed");
|
|
case OMPD_unknown:
|
|
llvm_unreachable("Unknown OpenMP directive");
|
|
}
|
|
|
|
for (auto P : VarsWithInheritedDSA) {
|
|
Diag(P.second->getExprLoc(), diag::err_omp_no_dsa_for_variable)
|
|
<< P.first << P.second->getSourceRange();
|
|
}
|
|
if (!VarsWithInheritedDSA.empty())
|
|
return StmtError();
|
|
|
|
if (ErrorFound)
|
|
return StmtError();
|
|
return Res;
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPParallelDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
CapturedStmt *CS = cast<CapturedStmt>(AStmt);
|
|
// 1.2.2 OpenMP Language Terminology
|
|
// Structured block - An executable statement with a single entry at the
|
|
// top and a single exit at the bottom.
|
|
// The point of exit cannot be a branch out of the structured block.
|
|
// longjmp() and throw() must not violate the entry/exit criteria.
|
|
CS->getCapturedDecl()->setNothrow();
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPParallelDirective::Create(Context, StartLoc, EndLoc, Clauses,
|
|
AStmt);
|
|
}
|
|
|
|
namespace {
|
|
/// \brief Helper class for checking canonical form of the OpenMP loops and
|
|
/// extracting iteration space of each loop in the loop nest, that will be used
|
|
/// for IR generation.
|
|
class OpenMPIterationSpaceChecker {
|
|
/// \brief Reference to Sema.
|
|
Sema &SemaRef;
|
|
/// \brief A location for diagnostics (when there is no some better location).
|
|
SourceLocation DefaultLoc;
|
|
/// \brief A location for diagnostics (when increment is not compatible).
|
|
SourceLocation ConditionLoc;
|
|
/// \brief A source location for referring to loop init later.
|
|
SourceRange InitSrcRange;
|
|
/// \brief A source location for referring to condition later.
|
|
SourceRange ConditionSrcRange;
|
|
/// \brief A source location for referring to increment later.
|
|
SourceRange IncrementSrcRange;
|
|
/// \brief Loop variable.
|
|
VarDecl *Var;
|
|
/// \brief Reference to loop variable.
|
|
DeclRefExpr *VarRef;
|
|
/// \brief Lower bound (initializer for the var).
|
|
Expr *LB;
|
|
/// \brief Upper bound.
|
|
Expr *UB;
|
|
/// \brief Loop step (increment).
|
|
Expr *Step;
|
|
/// \brief This flag is true when condition is one of:
|
|
/// Var < UB
|
|
/// Var <= UB
|
|
/// UB > Var
|
|
/// UB >= Var
|
|
bool TestIsLessOp;
|
|
/// \brief This flag is true when condition is strict ( < or > ).
|
|
bool TestIsStrictOp;
|
|
/// \brief This flag is true when step is subtracted on each iteration.
|
|
bool SubtractStep;
|
|
|
|
public:
|
|
OpenMPIterationSpaceChecker(Sema &SemaRef, SourceLocation DefaultLoc)
|
|
: SemaRef(SemaRef), DefaultLoc(DefaultLoc), ConditionLoc(DefaultLoc),
|
|
InitSrcRange(SourceRange()), ConditionSrcRange(SourceRange()),
|
|
IncrementSrcRange(SourceRange()), Var(nullptr), VarRef(nullptr),
|
|
LB(nullptr), UB(nullptr), Step(nullptr), TestIsLessOp(false),
|
|
TestIsStrictOp(false), SubtractStep(false) {}
|
|
/// \brief Check init-expr for canonical loop form and save loop counter
|
|
/// variable - #Var and its initialization value - #LB.
|
|
bool CheckInit(Stmt *S);
|
|
/// \brief Check test-expr for canonical form, save upper-bound (#UB), flags
|
|
/// for less/greater and for strict/non-strict comparison.
|
|
bool CheckCond(Expr *S);
|
|
/// \brief Check incr-expr for canonical loop form and return true if it
|
|
/// does not conform, otherwise save loop step (#Step).
|
|
bool CheckInc(Expr *S);
|
|
/// \brief Return the loop counter variable.
|
|
VarDecl *GetLoopVar() const { return Var; }
|
|
/// \brief Return the reference expression to loop counter variable.
|
|
DeclRefExpr *GetLoopVarRefExpr() const { return VarRef; }
|
|
/// \brief Source range of the loop init.
|
|
SourceRange GetInitSrcRange() const { return InitSrcRange; }
|
|
/// \brief Source range of the loop condition.
|
|
SourceRange GetConditionSrcRange() const { return ConditionSrcRange; }
|
|
/// \brief Source range of the loop increment.
|
|
SourceRange GetIncrementSrcRange() const { return IncrementSrcRange; }
|
|
/// \brief True if the step should be subtracted.
|
|
bool ShouldSubtractStep() const { return SubtractStep; }
|
|
/// \brief Build the expression to calculate the number of iterations.
|
|
Expr *BuildNumIterations(Scope *S, const bool LimitedType) const;
|
|
/// \brief Build reference expression to the counter be used for codegen.
|
|
Expr *BuildCounterVar() const;
|
|
/// \brief Build initization of the counter be used for codegen.
|
|
Expr *BuildCounterInit() const;
|
|
/// \brief Build step of the counter be used for codegen.
|
|
Expr *BuildCounterStep() const;
|
|
/// \brief Return true if any expression is dependent.
|
|
bool Dependent() const;
|
|
|
|
private:
|
|
/// \brief Check the right-hand side of an assignment in the increment
|
|
/// expression.
|
|
bool CheckIncRHS(Expr *RHS);
|
|
/// \brief Helper to set loop counter variable and its initializer.
|
|
bool SetVarAndLB(VarDecl *NewVar, DeclRefExpr *NewVarRefExpr, Expr *NewLB);
|
|
/// \brief Helper to set upper bound.
|
|
bool SetUB(Expr *NewUB, bool LessOp, bool StrictOp, const SourceRange &SR,
|
|
const SourceLocation &SL);
|
|
/// \brief Helper to set loop increment.
|
|
bool SetStep(Expr *NewStep, bool Subtract);
|
|
};
|
|
|
|
bool OpenMPIterationSpaceChecker::Dependent() const {
|
|
if (!Var) {
|
|
assert(!LB && !UB && !Step);
|
|
return false;
|
|
}
|
|
return Var->getType()->isDependentType() || (LB && LB->isValueDependent()) ||
|
|
(UB && UB->isValueDependent()) || (Step && Step->isValueDependent());
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::SetVarAndLB(VarDecl *NewVar,
|
|
DeclRefExpr *NewVarRefExpr,
|
|
Expr *NewLB) {
|
|
// State consistency checking to ensure correct usage.
|
|
assert(Var == nullptr && LB == nullptr && VarRef == nullptr &&
|
|
UB == nullptr && Step == nullptr && !TestIsLessOp && !TestIsStrictOp);
|
|
if (!NewVar || !NewLB)
|
|
return true;
|
|
Var = NewVar;
|
|
VarRef = NewVarRefExpr;
|
|
LB = NewLB;
|
|
return false;
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::SetUB(Expr *NewUB, bool LessOp, bool StrictOp,
|
|
const SourceRange &SR,
|
|
const SourceLocation &SL) {
|
|
// State consistency checking to ensure correct usage.
|
|
assert(Var != nullptr && LB != nullptr && UB == nullptr && Step == nullptr &&
|
|
!TestIsLessOp && !TestIsStrictOp);
|
|
if (!NewUB)
|
|
return true;
|
|
UB = NewUB;
|
|
TestIsLessOp = LessOp;
|
|
TestIsStrictOp = StrictOp;
|
|
ConditionSrcRange = SR;
|
|
ConditionLoc = SL;
|
|
return false;
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::SetStep(Expr *NewStep, bool Subtract) {
|
|
// State consistency checking to ensure correct usage.
|
|
assert(Var != nullptr && LB != nullptr && Step == nullptr);
|
|
if (!NewStep)
|
|
return true;
|
|
if (!NewStep->isValueDependent()) {
|
|
// Check that the step is integer expression.
|
|
SourceLocation StepLoc = NewStep->getLocStart();
|
|
ExprResult Val =
|
|
SemaRef.PerformOpenMPImplicitIntegerConversion(StepLoc, NewStep);
|
|
if (Val.isInvalid())
|
|
return true;
|
|
NewStep = Val.get();
|
|
|
|
// OpenMP [2.6, Canonical Loop Form, Restrictions]
|
|
// If test-expr is of form var relational-op b and relational-op is < or
|
|
// <= then incr-expr must cause var to increase on each iteration of the
|
|
// loop. If test-expr is of form var relational-op b and relational-op is
|
|
// > or >= then incr-expr must cause var to decrease on each iteration of
|
|
// the loop.
|
|
// If test-expr is of form b relational-op var and relational-op is < or
|
|
// <= then incr-expr must cause var to decrease on each iteration of the
|
|
// loop. If test-expr is of form b relational-op var and relational-op is
|
|
// > or >= then incr-expr must cause var to increase on each iteration of
|
|
// the loop.
|
|
llvm::APSInt Result;
|
|
bool IsConstant = NewStep->isIntegerConstantExpr(Result, SemaRef.Context);
|
|
bool IsUnsigned = !NewStep->getType()->hasSignedIntegerRepresentation();
|
|
bool IsConstNeg =
|
|
IsConstant && Result.isSigned() && (Subtract != Result.isNegative());
|
|
bool IsConstPos =
|
|
IsConstant && Result.isSigned() && (Subtract == Result.isNegative());
|
|
bool IsConstZero = IsConstant && !Result.getBoolValue();
|
|
if (UB && (IsConstZero ||
|
|
(TestIsLessOp ? (IsConstNeg || (IsUnsigned && Subtract))
|
|
: (IsConstPos || (IsUnsigned && !Subtract))))) {
|
|
SemaRef.Diag(NewStep->getExprLoc(),
|
|
diag::err_omp_loop_incr_not_compatible)
|
|
<< Var << TestIsLessOp << NewStep->getSourceRange();
|
|
SemaRef.Diag(ConditionLoc,
|
|
diag::note_omp_loop_cond_requres_compatible_incr)
|
|
<< TestIsLessOp << ConditionSrcRange;
|
|
return true;
|
|
}
|
|
if (TestIsLessOp == Subtract) {
|
|
NewStep = SemaRef.CreateBuiltinUnaryOp(NewStep->getExprLoc(), UO_Minus,
|
|
NewStep).get();
|
|
Subtract = !Subtract;
|
|
}
|
|
}
|
|
|
|
Step = NewStep;
|
|
SubtractStep = Subtract;
|
|
return false;
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::CheckInit(Stmt *S) {
|
|
// Check init-expr for canonical loop form and save loop counter
|
|
// variable - #Var and its initialization value - #LB.
|
|
// OpenMP [2.6] Canonical loop form. init-expr may be one of the following:
|
|
// var = lb
|
|
// integer-type var = lb
|
|
// random-access-iterator-type var = lb
|
|
// pointer-type var = lb
|
|
//
|
|
if (!S) {
|
|
SemaRef.Diag(DefaultLoc, diag::err_omp_loop_not_canonical_init);
|
|
return true;
|
|
}
|
|
InitSrcRange = S->getSourceRange();
|
|
if (Expr *E = dyn_cast<Expr>(S))
|
|
S = E->IgnoreParens();
|
|
if (auto BO = dyn_cast<BinaryOperator>(S)) {
|
|
if (BO->getOpcode() == BO_Assign)
|
|
if (auto DRE = dyn_cast<DeclRefExpr>(BO->getLHS()->IgnoreParens()))
|
|
return SetVarAndLB(dyn_cast<VarDecl>(DRE->getDecl()), DRE,
|
|
BO->getRHS());
|
|
} else if (auto DS = dyn_cast<DeclStmt>(S)) {
|
|
if (DS->isSingleDecl()) {
|
|
if (auto Var = dyn_cast_or_null<VarDecl>(DS->getSingleDecl())) {
|
|
if (Var->hasInit()) {
|
|
// Accept non-canonical init form here but emit ext. warning.
|
|
if (Var->getInitStyle() != VarDecl::CInit)
|
|
SemaRef.Diag(S->getLocStart(),
|
|
diag::ext_omp_loop_not_canonical_init)
|
|
<< S->getSourceRange();
|
|
return SetVarAndLB(Var, nullptr, Var->getInit());
|
|
}
|
|
}
|
|
}
|
|
} else if (auto CE = dyn_cast<CXXOperatorCallExpr>(S))
|
|
if (CE->getOperator() == OO_Equal)
|
|
if (auto DRE = dyn_cast<DeclRefExpr>(CE->getArg(0)))
|
|
return SetVarAndLB(dyn_cast<VarDecl>(DRE->getDecl()), DRE,
|
|
CE->getArg(1));
|
|
|
|
SemaRef.Diag(S->getLocStart(), diag::err_omp_loop_not_canonical_init)
|
|
<< S->getSourceRange();
|
|
return true;
|
|
}
|
|
|
|
/// \brief Ignore parenthesizes, implicit casts, copy constructor and return the
|
|
/// variable (which may be the loop variable) if possible.
|
|
static const VarDecl *GetInitVarDecl(const Expr *E) {
|
|
if (!E)
|
|
return nullptr;
|
|
E = E->IgnoreParenImpCasts();
|
|
if (auto *CE = dyn_cast_or_null<CXXConstructExpr>(E))
|
|
if (const CXXConstructorDecl *Ctor = CE->getConstructor())
|
|
if (Ctor->isCopyConstructor() && CE->getNumArgs() == 1 &&
|
|
CE->getArg(0) != nullptr)
|
|
E = CE->getArg(0)->IgnoreParenImpCasts();
|
|
auto DRE = dyn_cast_or_null<DeclRefExpr>(E);
|
|
if (!DRE)
|
|
return nullptr;
|
|
return dyn_cast<VarDecl>(DRE->getDecl());
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::CheckCond(Expr *S) {
|
|
// Check test-expr for canonical form, save upper-bound UB, flags for
|
|
// less/greater and for strict/non-strict comparison.
|
|
// OpenMP [2.6] Canonical loop form. Test-expr may be one of the following:
|
|
// var relational-op b
|
|
// b relational-op var
|
|
//
|
|
if (!S) {
|
|
SemaRef.Diag(DefaultLoc, diag::err_omp_loop_not_canonical_cond) << Var;
|
|
return true;
|
|
}
|
|
S = S->IgnoreParenImpCasts();
|
|
SourceLocation CondLoc = S->getLocStart();
|
|
if (auto BO = dyn_cast<BinaryOperator>(S)) {
|
|
if (BO->isRelationalOp()) {
|
|
if (GetInitVarDecl(BO->getLHS()) == Var)
|
|
return SetUB(BO->getRHS(),
|
|
(BO->getOpcode() == BO_LT || BO->getOpcode() == BO_LE),
|
|
(BO->getOpcode() == BO_LT || BO->getOpcode() == BO_GT),
|
|
BO->getSourceRange(), BO->getOperatorLoc());
|
|
if (GetInitVarDecl(BO->getRHS()) == Var)
|
|
return SetUB(BO->getLHS(),
|
|
(BO->getOpcode() == BO_GT || BO->getOpcode() == BO_GE),
|
|
(BO->getOpcode() == BO_LT || BO->getOpcode() == BO_GT),
|
|
BO->getSourceRange(), BO->getOperatorLoc());
|
|
}
|
|
} else if (auto CE = dyn_cast<CXXOperatorCallExpr>(S)) {
|
|
if (CE->getNumArgs() == 2) {
|
|
auto Op = CE->getOperator();
|
|
switch (Op) {
|
|
case OO_Greater:
|
|
case OO_GreaterEqual:
|
|
case OO_Less:
|
|
case OO_LessEqual:
|
|
if (GetInitVarDecl(CE->getArg(0)) == Var)
|
|
return SetUB(CE->getArg(1), Op == OO_Less || Op == OO_LessEqual,
|
|
Op == OO_Less || Op == OO_Greater, CE->getSourceRange(),
|
|
CE->getOperatorLoc());
|
|
if (GetInitVarDecl(CE->getArg(1)) == Var)
|
|
return SetUB(CE->getArg(0), Op == OO_Greater || Op == OO_GreaterEqual,
|
|
Op == OO_Less || Op == OO_Greater, CE->getSourceRange(),
|
|
CE->getOperatorLoc());
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
SemaRef.Diag(CondLoc, diag::err_omp_loop_not_canonical_cond)
|
|
<< S->getSourceRange() << Var;
|
|
return true;
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::CheckIncRHS(Expr *RHS) {
|
|
// RHS of canonical loop form increment can be:
|
|
// var + incr
|
|
// incr + var
|
|
// var - incr
|
|
//
|
|
RHS = RHS->IgnoreParenImpCasts();
|
|
if (auto BO = dyn_cast<BinaryOperator>(RHS)) {
|
|
if (BO->isAdditiveOp()) {
|
|
bool IsAdd = BO->getOpcode() == BO_Add;
|
|
if (GetInitVarDecl(BO->getLHS()) == Var)
|
|
return SetStep(BO->getRHS(), !IsAdd);
|
|
if (IsAdd && GetInitVarDecl(BO->getRHS()) == Var)
|
|
return SetStep(BO->getLHS(), false);
|
|
}
|
|
} else if (auto CE = dyn_cast<CXXOperatorCallExpr>(RHS)) {
|
|
bool IsAdd = CE->getOperator() == OO_Plus;
|
|
if ((IsAdd || CE->getOperator() == OO_Minus) && CE->getNumArgs() == 2) {
|
|
if (GetInitVarDecl(CE->getArg(0)) == Var)
|
|
return SetStep(CE->getArg(1), !IsAdd);
|
|
if (IsAdd && GetInitVarDecl(CE->getArg(1)) == Var)
|
|
return SetStep(CE->getArg(0), false);
|
|
}
|
|
}
|
|
SemaRef.Diag(RHS->getLocStart(), diag::err_omp_loop_not_canonical_incr)
|
|
<< RHS->getSourceRange() << Var;
|
|
return true;
|
|
}
|
|
|
|
bool OpenMPIterationSpaceChecker::CheckInc(Expr *S) {
|
|
// Check incr-expr for canonical loop form and return true if it
|
|
// does not conform.
|
|
// OpenMP [2.6] Canonical loop form. Test-expr may be one of the following:
|
|
// ++var
|
|
// var++
|
|
// --var
|
|
// var--
|
|
// var += incr
|
|
// var -= incr
|
|
// var = var + incr
|
|
// var = incr + var
|
|
// var = var - incr
|
|
//
|
|
if (!S) {
|
|
SemaRef.Diag(DefaultLoc, diag::err_omp_loop_not_canonical_incr) << Var;
|
|
return true;
|
|
}
|
|
IncrementSrcRange = S->getSourceRange();
|
|
S = S->IgnoreParens();
|
|
if (auto UO = dyn_cast<UnaryOperator>(S)) {
|
|
if (UO->isIncrementDecrementOp() && GetInitVarDecl(UO->getSubExpr()) == Var)
|
|
return SetStep(
|
|
SemaRef.ActOnIntegerConstant(UO->getLocStart(),
|
|
(UO->isDecrementOp() ? -1 : 1)).get(),
|
|
false);
|
|
} else if (auto BO = dyn_cast<BinaryOperator>(S)) {
|
|
switch (BO->getOpcode()) {
|
|
case BO_AddAssign:
|
|
case BO_SubAssign:
|
|
if (GetInitVarDecl(BO->getLHS()) == Var)
|
|
return SetStep(BO->getRHS(), BO->getOpcode() == BO_SubAssign);
|
|
break;
|
|
case BO_Assign:
|
|
if (GetInitVarDecl(BO->getLHS()) == Var)
|
|
return CheckIncRHS(BO->getRHS());
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else if (auto CE = dyn_cast<CXXOperatorCallExpr>(S)) {
|
|
switch (CE->getOperator()) {
|
|
case OO_PlusPlus:
|
|
case OO_MinusMinus:
|
|
if (GetInitVarDecl(CE->getArg(0)) == Var)
|
|
return SetStep(
|
|
SemaRef.ActOnIntegerConstant(
|
|
CE->getLocStart(),
|
|
((CE->getOperator() == OO_MinusMinus) ? -1 : 1)).get(),
|
|
false);
|
|
break;
|
|
case OO_PlusEqual:
|
|
case OO_MinusEqual:
|
|
if (GetInitVarDecl(CE->getArg(0)) == Var)
|
|
return SetStep(CE->getArg(1), CE->getOperator() == OO_MinusEqual);
|
|
break;
|
|
case OO_Equal:
|
|
if (GetInitVarDecl(CE->getArg(0)) == Var)
|
|
return CheckIncRHS(CE->getArg(1));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
SemaRef.Diag(S->getLocStart(), diag::err_omp_loop_not_canonical_incr)
|
|
<< S->getSourceRange() << Var;
|
|
return true;
|
|
}
|
|
|
|
/// \brief Build the expression to calculate the number of iterations.
|
|
Expr *
|
|
OpenMPIterationSpaceChecker::BuildNumIterations(Scope *S,
|
|
const bool LimitedType) const {
|
|
ExprResult Diff;
|
|
if (Var->getType()->isIntegerType() || Var->getType()->isPointerType() ||
|
|
SemaRef.getLangOpts().CPlusPlus) {
|
|
// Upper - Lower
|
|
Expr *Upper = TestIsLessOp ? UB : LB;
|
|
Expr *Lower = TestIsLessOp ? LB : UB;
|
|
|
|
Diff = SemaRef.BuildBinOp(S, DefaultLoc, BO_Sub, Upper, Lower);
|
|
|
|
if (!Diff.isUsable() && Var->getType()->getAsCXXRecordDecl()) {
|
|
// BuildBinOp already emitted error, this one is to point user to upper
|
|
// and lower bound, and to tell what is passed to 'operator-'.
|
|
SemaRef.Diag(Upper->getLocStart(), diag::err_omp_loop_diff_cxx)
|
|
<< Upper->getSourceRange() << Lower->getSourceRange();
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (!Diff.isUsable())
|
|
return nullptr;
|
|
|
|
// Upper - Lower [- 1]
|
|
if (TestIsStrictOp)
|
|
Diff = SemaRef.BuildBinOp(
|
|
S, DefaultLoc, BO_Sub, Diff.get(),
|
|
SemaRef.ActOnIntegerConstant(SourceLocation(), 1).get());
|
|
if (!Diff.isUsable())
|
|
return nullptr;
|
|
|
|
// Upper - Lower [- 1] + Step
|
|
Diff = SemaRef.BuildBinOp(S, DefaultLoc, BO_Add, Diff.get(),
|
|
Step->IgnoreImplicit());
|
|
if (!Diff.isUsable())
|
|
return nullptr;
|
|
|
|
// Parentheses (for dumping/debugging purposes only).
|
|
Diff = SemaRef.ActOnParenExpr(DefaultLoc, DefaultLoc, Diff.get());
|
|
if (!Diff.isUsable())
|
|
return nullptr;
|
|
|
|
// (Upper - Lower [- 1] + Step) / Step
|
|
Diff = SemaRef.BuildBinOp(S, DefaultLoc, BO_Div, Diff.get(),
|
|
Step->IgnoreImplicit());
|
|
if (!Diff.isUsable())
|
|
return nullptr;
|
|
|
|
// OpenMP runtime requires 32-bit or 64-bit loop variables.
|
|
if (LimitedType) {
|
|
auto &C = SemaRef.Context;
|
|
QualType Type = Diff.get()->getType();
|
|
unsigned NewSize = (C.getTypeSize(Type) > 32) ? 64 : 32;
|
|
if (NewSize != C.getTypeSize(Type)) {
|
|
if (NewSize < C.getTypeSize(Type)) {
|
|
assert(NewSize == 64 && "incorrect loop var size");
|
|
SemaRef.Diag(DefaultLoc, diag::warn_omp_loop_64_bit_var)
|
|
<< InitSrcRange << ConditionSrcRange;
|
|
}
|
|
QualType NewType = C.getIntTypeForBitwidth(
|
|
NewSize, Type->hasSignedIntegerRepresentation());
|
|
Diff = SemaRef.PerformImplicitConversion(Diff.get(), NewType,
|
|
Sema::AA_Converting, true);
|
|
if (!Diff.isUsable())
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return Diff.get();
|
|
}
|
|
|
|
/// \brief Build reference expression to the counter be used for codegen.
|
|
Expr *OpenMPIterationSpaceChecker::BuildCounterVar() const {
|
|
return DeclRefExpr::Create(SemaRef.Context, NestedNameSpecifierLoc(),
|
|
GetIncrementSrcRange().getBegin(), Var, false,
|
|
DefaultLoc, Var->getType(), VK_LValue);
|
|
}
|
|
|
|
/// \brief Build initization of the counter be used for codegen.
|
|
Expr *OpenMPIterationSpaceChecker::BuildCounterInit() const { return LB; }
|
|
|
|
/// \brief Build step of the counter be used for codegen.
|
|
Expr *OpenMPIterationSpaceChecker::BuildCounterStep() const { return Step; }
|
|
|
|
/// \brief Iteration space of a single for loop.
|
|
struct LoopIterationSpace {
|
|
/// \brief This expression calculates the number of iterations in the loop.
|
|
/// It is always possible to calculate it before starting the loop.
|
|
Expr *NumIterations;
|
|
/// \brief The loop counter variable.
|
|
Expr *CounterVar;
|
|
/// \brief This is initializer for the initial value of #CounterVar.
|
|
Expr *CounterInit;
|
|
/// \brief This is step for the #CounterVar used to generate its update:
|
|
/// #CounterVar = #CounterInit + #CounterStep * CurrentIteration.
|
|
Expr *CounterStep;
|
|
/// \brief Should step be subtracted?
|
|
bool Subtract;
|
|
/// \brief Source range of the loop init.
|
|
SourceRange InitSrcRange;
|
|
/// \brief Source range of the loop condition.
|
|
SourceRange CondSrcRange;
|
|
/// \brief Source range of the loop increment.
|
|
SourceRange IncSrcRange;
|
|
};
|
|
|
|
/// \brief The resulting expressions built for the OpenMP loop CodeGen for the
|
|
/// whole collapsed loop nest. See class OMPLoopDirective for their description.
|
|
struct BuiltLoopExprs {
|
|
Expr *IterationVarRef;
|
|
Expr *LastIteration;
|
|
Expr *CalcLastIteration;
|
|
Expr *PreCond;
|
|
Expr *Cond;
|
|
Expr *SeparatedCond;
|
|
Expr *Init;
|
|
Expr *Inc;
|
|
SmallVector<Expr *, 4> Counters;
|
|
SmallVector<Expr *, 4> Updates;
|
|
SmallVector<Expr *, 4> Finals;
|
|
|
|
bool builtAll() {
|
|
return IterationVarRef != nullptr && LastIteration != nullptr &&
|
|
PreCond != nullptr && Cond != nullptr && SeparatedCond != nullptr &&
|
|
Init != nullptr && Inc != nullptr;
|
|
}
|
|
void clear(unsigned size) {
|
|
IterationVarRef = nullptr;
|
|
LastIteration = nullptr;
|
|
CalcLastIteration = nullptr;
|
|
PreCond = nullptr;
|
|
Cond = nullptr;
|
|
SeparatedCond = nullptr;
|
|
Init = nullptr;
|
|
Inc = nullptr;
|
|
Counters.resize(size);
|
|
Updates.resize(size);
|
|
Finals.resize(size);
|
|
for (unsigned i = 0; i < size; ++i) {
|
|
Counters[i] = nullptr;
|
|
Updates[i] = nullptr;
|
|
Finals[i] = nullptr;
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
/// \brief Called on a for stmt to check and extract its iteration space
|
|
/// for further processing (such as collapsing).
|
|
static bool CheckOpenMPIterationSpace(
|
|
OpenMPDirectiveKind DKind, Stmt *S, Sema &SemaRef, DSAStackTy &DSA,
|
|
unsigned CurrentNestedLoopCount, unsigned NestedLoopCount,
|
|
Expr *NestedLoopCountExpr,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA,
|
|
LoopIterationSpace &ResultIterSpace) {
|
|
// OpenMP [2.6, Canonical Loop Form]
|
|
// for (init-expr; test-expr; incr-expr) structured-block
|
|
auto For = dyn_cast_or_null<ForStmt>(S);
|
|
if (!For) {
|
|
SemaRef.Diag(S->getLocStart(), diag::err_omp_not_for)
|
|
<< (NestedLoopCountExpr != nullptr) << getOpenMPDirectiveName(DKind)
|
|
<< NestedLoopCount << (CurrentNestedLoopCount > 0)
|
|
<< CurrentNestedLoopCount;
|
|
if (NestedLoopCount > 1)
|
|
SemaRef.Diag(NestedLoopCountExpr->getExprLoc(),
|
|
diag::note_omp_collapse_expr)
|
|
<< NestedLoopCountExpr->getSourceRange();
|
|
return true;
|
|
}
|
|
assert(For->getBody());
|
|
|
|
OpenMPIterationSpaceChecker ISC(SemaRef, For->getForLoc());
|
|
|
|
// Check init.
|
|
auto Init = For->getInit();
|
|
if (ISC.CheckInit(Init)) {
|
|
return true;
|
|
}
|
|
|
|
bool HasErrors = false;
|
|
|
|
// Check loop variable's type.
|
|
auto Var = ISC.GetLoopVar();
|
|
|
|
// OpenMP [2.6, Canonical Loop Form]
|
|
// Var is one of the following:
|
|
// A variable of signed or unsigned integer type.
|
|
// For C++, a variable of a random access iterator type.
|
|
// For C, a variable of a pointer type.
|
|
auto VarType = Var->getType();
|
|
if (!VarType->isDependentType() && !VarType->isIntegerType() &&
|
|
!VarType->isPointerType() &&
|
|
!(SemaRef.getLangOpts().CPlusPlus && VarType->isOverloadableType())) {
|
|
SemaRef.Diag(Init->getLocStart(), diag::err_omp_loop_variable_type)
|
|
<< SemaRef.getLangOpts().CPlusPlus;
|
|
HasErrors = true;
|
|
}
|
|
|
|
// OpenMP, 2.14.1.1 Data-sharing Attribute Rules for Variables Referenced in a
|
|
// Construct
|
|
// The loop iteration variable(s) in the associated for-loop(s) of a for or
|
|
// parallel for construct is (are) private.
|
|
// The loop iteration variable in the associated for-loop of a simd construct
|
|
// with just one associated for-loop is linear with a constant-linear-step
|
|
// that is the increment of the associated for-loop.
|
|
// Exclude loop var from the list of variables with implicitly defined data
|
|
// sharing attributes.
|
|
VarsWithImplicitDSA.erase(Var);
|
|
|
|
// OpenMP [2.14.1.1, Data-sharing Attribute Rules for Variables Referenced in
|
|
// a Construct, C/C++].
|
|
// The loop iteration variable in the associated for-loop of a simd construct
|
|
// with just one associated for-loop may be listed in a linear clause with a
|
|
// constant-linear-step that is the increment of the associated for-loop.
|
|
// The loop iteration variable(s) in the associated for-loop(s) of a for or
|
|
// parallel for construct may be listed in a private or lastprivate clause.
|
|
DSAStackTy::DSAVarData DVar = DSA.getTopDSA(Var, false);
|
|
auto LoopVarRefExpr = ISC.GetLoopVarRefExpr();
|
|
// If LoopVarRefExpr is nullptr it means the corresponding loop variable is
|
|
// declared in the loop and it is predetermined as a private.
|
|
auto PredeterminedCKind =
|
|
isOpenMPSimdDirective(DKind)
|
|
? ((NestedLoopCount == 1) ? OMPC_linear : OMPC_lastprivate)
|
|
: OMPC_private;
|
|
if (((isOpenMPSimdDirective(DKind) && DVar.CKind != OMPC_unknown &&
|
|
DVar.CKind != PredeterminedCKind) ||
|
|
(isOpenMPWorksharingDirective(DKind) && !isOpenMPSimdDirective(DKind) &&
|
|
DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_private &&
|
|
DVar.CKind != OMPC_lastprivate)) &&
|
|
(DVar.CKind != OMPC_private || DVar.RefExpr != nullptr)) {
|
|
SemaRef.Diag(Init->getLocStart(), diag::err_omp_loop_var_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind) << getOpenMPDirectiveName(DKind)
|
|
<< getOpenMPClauseName(PredeterminedCKind);
|
|
ReportOriginalDSA(SemaRef, &DSA, Var, DVar, true);
|
|
HasErrors = true;
|
|
} else if (LoopVarRefExpr != nullptr) {
|
|
// Make the loop iteration variable private (for worksharing constructs),
|
|
// linear (for simd directives with the only one associated loop) or
|
|
// lastprivate (for simd directives with several collapsed loops).
|
|
DSA.addDSA(Var, LoopVarRefExpr, PredeterminedCKind);
|
|
}
|
|
|
|
assert(isOpenMPLoopDirective(DKind) && "DSA for non-loop vars");
|
|
|
|
// Check test-expr.
|
|
HasErrors |= ISC.CheckCond(For->getCond());
|
|
|
|
// Check incr-expr.
|
|
HasErrors |= ISC.CheckInc(For->getInc());
|
|
|
|
if (ISC.Dependent() || SemaRef.CurContext->isDependentContext() || HasErrors)
|
|
return HasErrors;
|
|
|
|
// Build the loop's iteration space representation.
|
|
ResultIterSpace.NumIterations = ISC.BuildNumIterations(
|
|
DSA.getCurScope(), /* LimitedType */ isOpenMPWorksharingDirective(DKind));
|
|
ResultIterSpace.CounterVar = ISC.BuildCounterVar();
|
|
ResultIterSpace.CounterInit = ISC.BuildCounterInit();
|
|
ResultIterSpace.CounterStep = ISC.BuildCounterStep();
|
|
ResultIterSpace.InitSrcRange = ISC.GetInitSrcRange();
|
|
ResultIterSpace.CondSrcRange = ISC.GetConditionSrcRange();
|
|
ResultIterSpace.IncSrcRange = ISC.GetIncrementSrcRange();
|
|
ResultIterSpace.Subtract = ISC.ShouldSubtractStep();
|
|
|
|
HasErrors |= (ResultIterSpace.NumIterations == nullptr ||
|
|
ResultIterSpace.CounterVar == nullptr ||
|
|
ResultIterSpace.CounterInit == nullptr ||
|
|
ResultIterSpace.CounterStep == nullptr);
|
|
|
|
return HasErrors;
|
|
}
|
|
|
|
/// \brief Build a variable declaration for OpenMP loop iteration variable.
|
|
static VarDecl *BuildVarDecl(Sema &SemaRef, SourceLocation Loc, QualType Type,
|
|
StringRef Name) {
|
|
DeclContext *DC = SemaRef.CurContext;
|
|
IdentifierInfo *II = &SemaRef.PP.getIdentifierTable().get(Name);
|
|
TypeSourceInfo *TInfo = SemaRef.Context.getTrivialTypeSourceInfo(Type, Loc);
|
|
VarDecl *Decl =
|
|
VarDecl::Create(SemaRef.Context, DC, Loc, Loc, II, Type, TInfo, SC_None);
|
|
Decl->setImplicit();
|
|
return Decl;
|
|
}
|
|
|
|
/// \brief Build 'VarRef = Start + Iter * Step'.
|
|
static ExprResult BuildCounterUpdate(Sema &SemaRef, Scope *S,
|
|
SourceLocation Loc, ExprResult VarRef,
|
|
ExprResult Start, ExprResult Iter,
|
|
ExprResult Step, bool Subtract) {
|
|
// Add parentheses (for debugging purposes only).
|
|
Iter = SemaRef.ActOnParenExpr(Loc, Loc, Iter.get());
|
|
if (!VarRef.isUsable() || !Start.isUsable() || !Iter.isUsable() ||
|
|
!Step.isUsable())
|
|
return ExprError();
|
|
|
|
ExprResult Update = SemaRef.BuildBinOp(S, Loc, BO_Mul, Iter.get(),
|
|
Step.get()->IgnoreImplicit());
|
|
if (!Update.isUsable())
|
|
return ExprError();
|
|
|
|
// Build 'VarRef = Start + Iter * Step'.
|
|
Update = SemaRef.BuildBinOp(S, Loc, (Subtract ? BO_Sub : BO_Add),
|
|
Start.get()->IgnoreImplicit(), Update.get());
|
|
if (!Update.isUsable())
|
|
return ExprError();
|
|
|
|
Update = SemaRef.PerformImplicitConversion(
|
|
Update.get(), VarRef.get()->getType(), Sema::AA_Converting, true);
|
|
if (!Update.isUsable())
|
|
return ExprError();
|
|
|
|
Update = SemaRef.BuildBinOp(S, Loc, BO_Assign, VarRef.get(), Update.get());
|
|
return Update;
|
|
}
|
|
|
|
/// \brief Convert integer expression \a E to make it have at least \a Bits
|
|
/// bits.
|
|
static ExprResult WidenIterationCount(unsigned Bits, Expr *E,
|
|
Sema &SemaRef) {
|
|
if (E == nullptr)
|
|
return ExprError();
|
|
auto &C = SemaRef.Context;
|
|
QualType OldType = E->getType();
|
|
unsigned HasBits = C.getTypeSize(OldType);
|
|
if (HasBits >= Bits)
|
|
return ExprResult(E);
|
|
// OK to convert to signed, because new type has more bits than old.
|
|
QualType NewType = C.getIntTypeForBitwidth(Bits, /* Signed */ true);
|
|
return SemaRef.PerformImplicitConversion(E, NewType, Sema::AA_Converting,
|
|
true);
|
|
}
|
|
|
|
/// \brief Check if the given expression \a E is a constant integer that fits
|
|
/// into \a Bits bits.
|
|
static bool FitsInto(unsigned Bits, bool Signed, Expr *E, Sema &SemaRef) {
|
|
if (E == nullptr)
|
|
return false;
|
|
llvm::APSInt Result;
|
|
if (E->isIntegerConstantExpr(Result, SemaRef.Context))
|
|
return Signed ? Result.isSignedIntN(Bits) : Result.isIntN(Bits);
|
|
return false;
|
|
}
|
|
|
|
/// \brief Called on a for stmt to check itself and nested loops (if any).
|
|
/// \return Returns 0 if one of the collapsed stmts is not canonical for loop,
|
|
/// number of collapsed loops otherwise.
|
|
static unsigned
|
|
CheckOpenMPLoop(OpenMPDirectiveKind DKind, Expr *NestedLoopCountExpr,
|
|
Stmt *AStmt, Sema &SemaRef, DSAStackTy &DSA,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA,
|
|
BuiltLoopExprs &Built) {
|
|
unsigned NestedLoopCount = 1;
|
|
if (NestedLoopCountExpr) {
|
|
// Found 'collapse' clause - calculate collapse number.
|
|
llvm::APSInt Result;
|
|
if (NestedLoopCountExpr->EvaluateAsInt(Result, SemaRef.getASTContext()))
|
|
NestedLoopCount = Result.getLimitedValue();
|
|
}
|
|
// This is helper routine for loop directives (e.g., 'for', 'simd',
|
|
// 'for simd', etc.).
|
|
SmallVector<LoopIterationSpace, 4> IterSpaces;
|
|
IterSpaces.resize(NestedLoopCount);
|
|
Stmt *CurStmt = AStmt->IgnoreContainers(/* IgnoreCaptured */ true);
|
|
for (unsigned Cnt = 0; Cnt < NestedLoopCount; ++Cnt) {
|
|
if (CheckOpenMPIterationSpace(DKind, CurStmt, SemaRef, DSA, Cnt,
|
|
NestedLoopCount, NestedLoopCountExpr,
|
|
VarsWithImplicitDSA, IterSpaces[Cnt]))
|
|
return 0;
|
|
// Move on to the next nested for loop, or to the loop body.
|
|
// OpenMP [2.8.1, simd construct, Restrictions]
|
|
// All loops associated with the construct must be perfectly nested; that
|
|
// is, there must be no intervening code nor any OpenMP directive between
|
|
// any two loops.
|
|
CurStmt = cast<ForStmt>(CurStmt)->getBody()->IgnoreContainers();
|
|
}
|
|
|
|
Built.clear(/* size */ NestedLoopCount);
|
|
|
|
if (SemaRef.CurContext->isDependentContext())
|
|
return NestedLoopCount;
|
|
|
|
// An example of what is generated for the following code:
|
|
//
|
|
// #pragma omp simd collapse(2)
|
|
// for (i = 0; i < NI; ++i)
|
|
// for (j = J0; j < NJ; j+=2) {
|
|
// <loop body>
|
|
// }
|
|
//
|
|
// We generate the code below.
|
|
// Note: the loop body may be outlined in CodeGen.
|
|
// Note: some counters may be C++ classes, operator- is used to find number of
|
|
// iterations and operator+= to calculate counter value.
|
|
// Note: decltype(NumIterations) must be integer type (in 'omp for', only i32
|
|
// or i64 is currently supported).
|
|
//
|
|
// #define NumIterations (NI * ((NJ - J0 - 1 + 2) / 2))
|
|
// for (int[32|64]_t IV = 0; IV < NumIterations; ++IV ) {
|
|
// .local.i = IV / ((NJ - J0 - 1 + 2) / 2);
|
|
// .local.j = J0 + (IV % ((NJ - J0 - 1 + 2) / 2)) * 2;
|
|
// // similar updates for vars in clauses (e.g. 'linear')
|
|
// <loop body (using local i and j)>
|
|
// }
|
|
// i = NI; // assign final values of counters
|
|
// j = NJ;
|
|
//
|
|
|
|
// Last iteration number is (I1 * I2 * ... In) - 1, where I1, I2 ... In are
|
|
// the iteration counts of the collapsed for loops.
|
|
auto N0 = IterSpaces[0].NumIterations;
|
|
ExprResult LastIteration32 = WidenIterationCount(32 /* Bits */, N0, SemaRef);
|
|
ExprResult LastIteration64 = WidenIterationCount(64 /* Bits */, N0, SemaRef);
|
|
|
|
if (!LastIteration32.isUsable() || !LastIteration64.isUsable())
|
|
return NestedLoopCount;
|
|
|
|
auto &C = SemaRef.Context;
|
|
bool AllCountsNeedLessThan32Bits = C.getTypeSize(N0->getType()) < 32;
|
|
|
|
Scope *CurScope = DSA.getCurScope();
|
|
for (unsigned Cnt = 1; Cnt < NestedLoopCount; ++Cnt) {
|
|
auto N = IterSpaces[Cnt].NumIterations;
|
|
AllCountsNeedLessThan32Bits &= C.getTypeSize(N->getType()) < 32;
|
|
if (LastIteration32.isUsable())
|
|
LastIteration32 = SemaRef.BuildBinOp(CurScope, SourceLocation(), BO_Mul,
|
|
LastIteration32.get(), N);
|
|
if (LastIteration64.isUsable())
|
|
LastIteration64 = SemaRef.BuildBinOp(CurScope, SourceLocation(), BO_Mul,
|
|
LastIteration64.get(), N);
|
|
}
|
|
|
|
// Choose either the 32-bit or 64-bit version.
|
|
ExprResult LastIteration = LastIteration64;
|
|
if (LastIteration32.isUsable() &&
|
|
C.getTypeSize(LastIteration32.get()->getType()) == 32 &&
|
|
(AllCountsNeedLessThan32Bits || NestedLoopCount == 1 ||
|
|
FitsInto(
|
|
32 /* Bits */,
|
|
LastIteration32.get()->getType()->hasSignedIntegerRepresentation(),
|
|
LastIteration64.get(), SemaRef)))
|
|
LastIteration = LastIteration32;
|
|
|
|
if (!LastIteration.isUsable())
|
|
return 0;
|
|
|
|
// Save the number of iterations.
|
|
ExprResult NumIterations = LastIteration;
|
|
{
|
|
LastIteration = SemaRef.BuildBinOp(
|
|
CurScope, SourceLocation(), BO_Sub, LastIteration.get(),
|
|
SemaRef.ActOnIntegerConstant(SourceLocation(), 1).get());
|
|
if (!LastIteration.isUsable())
|
|
return 0;
|
|
}
|
|
|
|
// Calculate the last iteration number beforehand instead of doing this on
|
|
// each iteration. Do not do this if the number of iterations may be kfold-ed.
|
|
llvm::APSInt Result;
|
|
bool IsConstant =
|
|
LastIteration.get()->isIntegerConstantExpr(Result, SemaRef.Context);
|
|
ExprResult CalcLastIteration;
|
|
if (!IsConstant) {
|
|
SourceLocation SaveLoc;
|
|
VarDecl *SaveVar =
|
|
BuildVarDecl(SemaRef, SaveLoc, LastIteration.get()->getType(),
|
|
".omp.last.iteration");
|
|
ExprResult SaveRef = SemaRef.BuildDeclRefExpr(
|
|
SaveVar, LastIteration.get()->getType(), VK_LValue, SaveLoc);
|
|
CalcLastIteration = SemaRef.BuildBinOp(CurScope, SaveLoc, BO_Assign,
|
|
SaveRef.get(), LastIteration.get());
|
|
LastIteration = SaveRef;
|
|
|
|
// Prepare SaveRef + 1.
|
|
NumIterations = SemaRef.BuildBinOp(
|
|
CurScope, SaveLoc, BO_Add, SaveRef.get(),
|
|
SemaRef.ActOnIntegerConstant(SourceLocation(), 1).get());
|
|
if (!NumIterations.isUsable())
|
|
return 0;
|
|
}
|
|
|
|
SourceLocation InitLoc = IterSpaces[0].InitSrcRange.getBegin();
|
|
|
|
// Precondition tests if there is at least one iteration (LastIteration > 0).
|
|
ExprResult PreCond = SemaRef.BuildBinOp(
|
|
CurScope, InitLoc, BO_GT, LastIteration.get(),
|
|
SemaRef.ActOnIntegerConstant(SourceLocation(), 0).get());
|
|
|
|
// Build the iteration variable and its initialization to zero before loop.
|
|
ExprResult IV;
|
|
ExprResult Init;
|
|
{
|
|
VarDecl *IVDecl = BuildVarDecl(SemaRef, InitLoc,
|
|
LastIteration.get()->getType(), ".omp.iv");
|
|
IV = SemaRef.BuildDeclRefExpr(IVDecl, LastIteration.get()->getType(),
|
|
VK_LValue, InitLoc);
|
|
Init = SemaRef.BuildBinOp(
|
|
CurScope, InitLoc, BO_Assign, IV.get(),
|
|
SemaRef.ActOnIntegerConstant(SourceLocation(), 0).get());
|
|
}
|
|
|
|
// Loop condition (IV < NumIterations)
|
|
SourceLocation CondLoc;
|
|
ExprResult Cond = SemaRef.BuildBinOp(CurScope, CondLoc, BO_LT, IV.get(),
|
|
NumIterations.get());
|
|
// Loop condition with 1 iteration separated (IV < LastIteration)
|
|
ExprResult SeparatedCond = SemaRef.BuildBinOp(CurScope, CondLoc, BO_LT,
|
|
IV.get(), LastIteration.get());
|
|
|
|
// Loop increment (IV = IV + 1)
|
|
SourceLocation IncLoc;
|
|
ExprResult Inc =
|
|
SemaRef.BuildBinOp(CurScope, IncLoc, BO_Add, IV.get(),
|
|
SemaRef.ActOnIntegerConstant(IncLoc, 1).get());
|
|
if (!Inc.isUsable())
|
|
return 0;
|
|
Inc = SemaRef.BuildBinOp(CurScope, IncLoc, BO_Assign, IV.get(), Inc.get());
|
|
|
|
// Build updates and final values of the loop counters.
|
|
bool HasErrors = false;
|
|
Built.Counters.resize(NestedLoopCount);
|
|
Built.Updates.resize(NestedLoopCount);
|
|
Built.Finals.resize(NestedLoopCount);
|
|
{
|
|
ExprResult Div;
|
|
// Go from inner nested loop to outer.
|
|
for (int Cnt = NestedLoopCount - 1; Cnt >= 0; --Cnt) {
|
|
LoopIterationSpace &IS = IterSpaces[Cnt];
|
|
SourceLocation UpdLoc = IS.IncSrcRange.getBegin();
|
|
// Build: Iter = (IV / Div) % IS.NumIters
|
|
// where Div is product of previous iterations' IS.NumIters.
|
|
ExprResult Iter;
|
|
if (Div.isUsable()) {
|
|
Iter =
|
|
SemaRef.BuildBinOp(CurScope, UpdLoc, BO_Div, IV.get(), Div.get());
|
|
} else {
|
|
Iter = IV;
|
|
assert((Cnt == (int)NestedLoopCount - 1) &&
|
|
"unusable div expected on first iteration only");
|
|
}
|
|
|
|
if (Cnt != 0 && Iter.isUsable())
|
|
Iter = SemaRef.BuildBinOp(CurScope, UpdLoc, BO_Rem, Iter.get(),
|
|
IS.NumIterations);
|
|
if (!Iter.isUsable()) {
|
|
HasErrors = true;
|
|
break;
|
|
}
|
|
|
|
// Build update: IS.CounterVar = IS.Start + Iter * IS.Step
|
|
ExprResult Update =
|
|
BuildCounterUpdate(SemaRef, CurScope, UpdLoc, IS.CounterVar,
|
|
IS.CounterInit, Iter, IS.CounterStep, IS.Subtract);
|
|
if (!Update.isUsable()) {
|
|
HasErrors = true;
|
|
break;
|
|
}
|
|
|
|
// Build final: IS.CounterVar = IS.Start + IS.NumIters * IS.Step
|
|
ExprResult Final = BuildCounterUpdate(
|
|
SemaRef, CurScope, UpdLoc, IS.CounterVar, IS.CounterInit,
|
|
IS.NumIterations, IS.CounterStep, IS.Subtract);
|
|
if (!Final.isUsable()) {
|
|
HasErrors = true;
|
|
break;
|
|
}
|
|
|
|
// Build Div for the next iteration: Div <- Div * IS.NumIters
|
|
if (Cnt != 0) {
|
|
if (Div.isUnset())
|
|
Div = IS.NumIterations;
|
|
else
|
|
Div = SemaRef.BuildBinOp(CurScope, UpdLoc, BO_Mul, Div.get(),
|
|
IS.NumIterations);
|
|
|
|
// Add parentheses (for debugging purposes only).
|
|
if (Div.isUsable())
|
|
Div = SemaRef.ActOnParenExpr(UpdLoc, UpdLoc, Div.get());
|
|
if (!Div.isUsable()) {
|
|
HasErrors = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!Update.isUsable() || !Final.isUsable()) {
|
|
HasErrors = true;
|
|
break;
|
|
}
|
|
// Save results
|
|
Built.Counters[Cnt] = IS.CounterVar;
|
|
Built.Updates[Cnt] = Update.get();
|
|
Built.Finals[Cnt] = Final.get();
|
|
}
|
|
}
|
|
|
|
if (HasErrors)
|
|
return 0;
|
|
|
|
// Save results
|
|
Built.IterationVarRef = IV.get();
|
|
Built.LastIteration = LastIteration.get();
|
|
Built.CalcLastIteration = CalcLastIteration.get();
|
|
Built.PreCond = PreCond.get();
|
|
Built.Cond = Cond.get();
|
|
Built.SeparatedCond = SeparatedCond.get();
|
|
Built.Init = Init.get();
|
|
Built.Inc = Inc.get();
|
|
|
|
return NestedLoopCount;
|
|
}
|
|
|
|
static Expr *GetCollapseNumberExpr(ArrayRef<OMPClause *> Clauses) {
|
|
auto CollapseFilter = [](const OMPClause *C) -> bool {
|
|
return C->getClauseKind() == OMPC_collapse;
|
|
};
|
|
OMPExecutableDirective::filtered_clause_iterator<decltype(CollapseFilter)> I(
|
|
Clauses, CollapseFilter);
|
|
if (I)
|
|
return cast<OMPCollapseClause>(*I)->getNumForLoops();
|
|
return nullptr;
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPSimdDirective(
|
|
ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA) {
|
|
BuiltLoopExprs B;
|
|
// In presence of clause 'collapse', it will define the nested loops number.
|
|
unsigned NestedLoopCount =
|
|
CheckOpenMPLoop(OMPD_simd, GetCollapseNumberExpr(Clauses), AStmt, *this,
|
|
*DSAStack, VarsWithImplicitDSA, B);
|
|
if (NestedLoopCount == 0)
|
|
return StmtError();
|
|
|
|
assert((CurContext->isDependentContext() || B.builtAll()) &&
|
|
"omp simd loop exprs were not built");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
return OMPSimdDirective::Create(
|
|
Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt,
|
|
B.IterationVarRef, B.LastIteration, B.CalcLastIteration, B.PreCond,
|
|
B.Cond, B.SeparatedCond, B.Init, B.Inc, B.Counters, B.Updates, B.Finals);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPForDirective(
|
|
ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA) {
|
|
BuiltLoopExprs B;
|
|
// In presence of clause 'collapse', it will define the nested loops number.
|
|
unsigned NestedLoopCount =
|
|
CheckOpenMPLoop(OMPD_for, GetCollapseNumberExpr(Clauses), AStmt, *this,
|
|
*DSAStack, VarsWithImplicitDSA, B);
|
|
if (NestedLoopCount == 0)
|
|
return StmtError();
|
|
|
|
assert((CurContext->isDependentContext() || B.builtAll()) &&
|
|
"omp for loop exprs were not built");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
return OMPForDirective::Create(
|
|
Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt,
|
|
B.IterationVarRef, B.LastIteration, B.CalcLastIteration, B.PreCond,
|
|
B.Cond, B.SeparatedCond, B.Init, B.Inc, B.Counters, B.Updates, B.Finals);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPForSimdDirective(
|
|
ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA) {
|
|
BuiltLoopExprs B;
|
|
// In presence of clause 'collapse', it will define the nested loops number.
|
|
unsigned NestedLoopCount =
|
|
CheckOpenMPLoop(OMPD_for_simd, GetCollapseNumberExpr(Clauses), AStmt,
|
|
*this, *DSAStack, VarsWithImplicitDSA, B);
|
|
if (NestedLoopCount == 0)
|
|
return StmtError();
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
return OMPForSimdDirective::Create(
|
|
Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt,
|
|
B.IterationVarRef, B.LastIteration, B.CalcLastIteration, B.PreCond,
|
|
B.Cond, B.SeparatedCond, B.Init, B.Inc, B.Counters, B.Updates, B.Finals);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPSectionsDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
auto BaseStmt = AStmt;
|
|
while (CapturedStmt *CS = dyn_cast_or_null<CapturedStmt>(BaseStmt))
|
|
BaseStmt = CS->getCapturedStmt();
|
|
if (auto C = dyn_cast_or_null<CompoundStmt>(BaseStmt)) {
|
|
auto S = C->children();
|
|
if (!S)
|
|
return StmtError();
|
|
// All associated statements must be '#pragma omp section' except for
|
|
// the first one.
|
|
for (++S; S; ++S) {
|
|
auto SectionStmt = *S;
|
|
if (!SectionStmt || !isa<OMPSectionDirective>(SectionStmt)) {
|
|
if (SectionStmt)
|
|
Diag(SectionStmt->getLocStart(),
|
|
diag::err_omp_sections_substmt_not_section);
|
|
return StmtError();
|
|
}
|
|
}
|
|
} else {
|
|
Diag(AStmt->getLocStart(), diag::err_omp_sections_not_compound_stmt);
|
|
return StmtError();
|
|
}
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPSectionsDirective::Create(Context, StartLoc, EndLoc, Clauses,
|
|
AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPSectionDirective(Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPSectionDirective::Create(Context, StartLoc, EndLoc, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPSingleDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPSingleDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPMasterDirective(Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPMasterDirective::Create(Context, StartLoc, EndLoc, AStmt);
|
|
}
|
|
|
|
StmtResult
|
|
Sema::ActOnOpenMPCriticalDirective(const DeclarationNameInfo &DirName,
|
|
Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPCriticalDirective::Create(Context, DirName, StartLoc, EndLoc,
|
|
AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPParallelForDirective(
|
|
ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
CapturedStmt *CS = cast<CapturedStmt>(AStmt);
|
|
// 1.2.2 OpenMP Language Terminology
|
|
// Structured block - An executable statement with a single entry at the
|
|
// top and a single exit at the bottom.
|
|
// The point of exit cannot be a branch out of the structured block.
|
|
// longjmp() and throw() must not violate the entry/exit criteria.
|
|
CS->getCapturedDecl()->setNothrow();
|
|
|
|
BuiltLoopExprs B;
|
|
// In presence of clause 'collapse', it will define the nested loops number.
|
|
unsigned NestedLoopCount =
|
|
CheckOpenMPLoop(OMPD_parallel_for, GetCollapseNumberExpr(Clauses), AStmt,
|
|
*this, *DSAStack, VarsWithImplicitDSA, B);
|
|
if (NestedLoopCount == 0)
|
|
return StmtError();
|
|
|
|
assert((CurContext->isDependentContext() || B.builtAll()) &&
|
|
"omp parallel for loop exprs were not built");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
return OMPParallelForDirective::Create(
|
|
Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt,
|
|
B.IterationVarRef, B.LastIteration, B.CalcLastIteration, B.PreCond,
|
|
B.Cond, B.SeparatedCond, B.Init, B.Inc, B.Counters, B.Updates, B.Finals);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPParallelForSimdDirective(
|
|
ArrayRef<OMPClause *> Clauses, Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc,
|
|
llvm::DenseMap<VarDecl *, Expr *> &VarsWithImplicitDSA) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
CapturedStmt *CS = cast<CapturedStmt>(AStmt);
|
|
// 1.2.2 OpenMP Language Terminology
|
|
// Structured block - An executable statement with a single entry at the
|
|
// top and a single exit at the bottom.
|
|
// The point of exit cannot be a branch out of the structured block.
|
|
// longjmp() and throw() must not violate the entry/exit criteria.
|
|
CS->getCapturedDecl()->setNothrow();
|
|
|
|
BuiltLoopExprs B;
|
|
// In presence of clause 'collapse', it will define the nested loops number.
|
|
unsigned NestedLoopCount =
|
|
CheckOpenMPLoop(OMPD_parallel_for_simd, GetCollapseNumberExpr(Clauses),
|
|
AStmt, *this, *DSAStack, VarsWithImplicitDSA, B);
|
|
if (NestedLoopCount == 0)
|
|
return StmtError();
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
return OMPParallelForSimdDirective::Create(
|
|
Context, StartLoc, EndLoc, NestedLoopCount, Clauses, AStmt,
|
|
B.IterationVarRef, B.LastIteration, B.CalcLastIteration, B.PreCond,
|
|
B.Cond, B.SeparatedCond, B.Init, B.Inc, B.Counters, B.Updates, B.Finals);
|
|
}
|
|
|
|
StmtResult
|
|
Sema::ActOnOpenMPParallelSectionsDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
auto BaseStmt = AStmt;
|
|
while (CapturedStmt *CS = dyn_cast_or_null<CapturedStmt>(BaseStmt))
|
|
BaseStmt = CS->getCapturedStmt();
|
|
if (auto C = dyn_cast_or_null<CompoundStmt>(BaseStmt)) {
|
|
auto S = C->children();
|
|
if (!S)
|
|
return StmtError();
|
|
// All associated statements must be '#pragma omp section' except for
|
|
// the first one.
|
|
for (++S; S; ++S) {
|
|
auto SectionStmt = *S;
|
|
if (!SectionStmt || !isa<OMPSectionDirective>(SectionStmt)) {
|
|
if (SectionStmt)
|
|
Diag(SectionStmt->getLocStart(),
|
|
diag::err_omp_parallel_sections_substmt_not_section);
|
|
return StmtError();
|
|
}
|
|
}
|
|
} else {
|
|
Diag(AStmt->getLocStart(),
|
|
diag::err_omp_parallel_sections_not_compound_stmt);
|
|
return StmtError();
|
|
}
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPParallelSectionsDirective::Create(Context, StartLoc, EndLoc,
|
|
Clauses, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPTaskDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
CapturedStmt *CS = cast<CapturedStmt>(AStmt);
|
|
// 1.2.2 OpenMP Language Terminology
|
|
// Structured block - An executable statement with a single entry at the
|
|
// top and a single exit at the bottom.
|
|
// The point of exit cannot be a branch out of the structured block.
|
|
// longjmp() and throw() must not violate the entry/exit criteria.
|
|
CS->getCapturedDecl()->setNothrow();
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPTaskDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPTaskyieldDirective(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return OMPTaskyieldDirective::Create(Context, StartLoc, EndLoc);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPBarrierDirective(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return OMPBarrierDirective::Create(Context, StartLoc, EndLoc);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPTaskwaitDirective(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return OMPTaskwaitDirective::Create(Context, StartLoc, EndLoc);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPFlushDirective(ArrayRef<OMPClause *> Clauses,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(Clauses.size() <= 1 && "Extra clauses in flush directive");
|
|
return OMPFlushDirective::Create(Context, StartLoc, EndLoc, Clauses);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPOrderedDirective(Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPOrderedDirective::Create(Context, StartLoc, EndLoc, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPAtomicDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
auto CS = cast<CapturedStmt>(AStmt);
|
|
// 1.2.2 OpenMP Language Terminology
|
|
// Structured block - An executable statement with a single entry at the
|
|
// top and a single exit at the bottom.
|
|
// The point of exit cannot be a branch out of the structured block.
|
|
// longjmp() and throw() must not violate the entry/exit criteria.
|
|
// TODO further analysis of associated statements and clauses.
|
|
OpenMPClauseKind AtomicKind = OMPC_unknown;
|
|
SourceLocation AtomicKindLoc;
|
|
for (auto *C : Clauses) {
|
|
if (C->getClauseKind() == OMPC_read || C->getClauseKind() == OMPC_write ||
|
|
C->getClauseKind() == OMPC_update ||
|
|
C->getClauseKind() == OMPC_capture) {
|
|
if (AtomicKind != OMPC_unknown) {
|
|
Diag(C->getLocStart(), diag::err_omp_atomic_several_clauses)
|
|
<< SourceRange(C->getLocStart(), C->getLocEnd());
|
|
Diag(AtomicKindLoc, diag::note_omp_atomic_previous_clause)
|
|
<< getOpenMPClauseName(AtomicKind);
|
|
} else {
|
|
AtomicKind = C->getClauseKind();
|
|
AtomicKindLoc = C->getLocStart();
|
|
}
|
|
}
|
|
}
|
|
auto Body = CS->getCapturedStmt();
|
|
if (AtomicKind == OMPC_read) {
|
|
if (!isa<Expr>(Body)) {
|
|
Diag(Body->getLocStart(),
|
|
diag::err_omp_atomic_read_not_expression_statement);
|
|
return StmtError();
|
|
}
|
|
} else if (AtomicKind == OMPC_write) {
|
|
if (!isa<Expr>(Body)) {
|
|
Diag(Body->getLocStart(),
|
|
diag::err_omp_atomic_write_not_expression_statement);
|
|
return StmtError();
|
|
}
|
|
} else if (AtomicKind == OMPC_update || AtomicKind == OMPC_unknown) {
|
|
if (!isa<Expr>(Body)) {
|
|
Diag(Body->getLocStart(),
|
|
diag::err_omp_atomic_update_not_expression_statement)
|
|
<< (AtomicKind == OMPC_update);
|
|
return StmtError();
|
|
}
|
|
} else if (AtomicKind == OMPC_capture) {
|
|
if (isa<Expr>(Body) && !isa<BinaryOperator>(Body)) {
|
|
Diag(Body->getLocStart(),
|
|
diag::err_omp_atomic_capture_not_expression_statement);
|
|
return StmtError();
|
|
} else if (!isa<Expr>(Body) && !isa<CompoundStmt>(Body)) {
|
|
Diag(Body->getLocStart(),
|
|
diag::err_omp_atomic_capture_not_compound_statement);
|
|
return StmtError();
|
|
}
|
|
}
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPAtomicDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPTargetDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
|
|
// OpenMP [2.16, Nesting of Regions]
|
|
// If specified, a teams construct must be contained within a target
|
|
// construct. That target construct must contain no statements or directives
|
|
// outside of the teams construct.
|
|
if (DSAStack->hasInnerTeamsRegion()) {
|
|
auto S = AStmt->IgnoreContainers(/*IgnoreCaptured*/ true);
|
|
bool OMPTeamsFound = true;
|
|
if (auto *CS = dyn_cast<CompoundStmt>(S)) {
|
|
auto I = CS->body_begin();
|
|
while (I != CS->body_end()) {
|
|
auto OED = dyn_cast<OMPExecutableDirective>(*I);
|
|
if (!OED || !isOpenMPTeamsDirective(OED->getDirectiveKind())) {
|
|
OMPTeamsFound = false;
|
|
break;
|
|
}
|
|
++I;
|
|
}
|
|
assert(I != CS->body_end() && "Not found statement");
|
|
S = *I;
|
|
}
|
|
if (!OMPTeamsFound) {
|
|
Diag(StartLoc, diag::err_omp_target_contains_not_only_teams);
|
|
Diag(DSAStack->getInnerTeamsRegionLoc(),
|
|
diag::note_omp_nested_teams_construct_here);
|
|
Diag(S->getLocStart(), diag::note_omp_nested_statement_here)
|
|
<< isa<OMPExecutableDirective>(S);
|
|
return StmtError();
|
|
}
|
|
}
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPTargetDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
|
|
}
|
|
|
|
StmtResult Sema::ActOnOpenMPTeamsDirective(ArrayRef<OMPClause *> Clauses,
|
|
Stmt *AStmt, SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
assert(AStmt && isa<CapturedStmt>(AStmt) && "Captured statement expected");
|
|
CapturedStmt *CS = cast<CapturedStmt>(AStmt);
|
|
// 1.2.2 OpenMP Language Terminology
|
|
// Structured block - An executable statement with a single entry at the
|
|
// top and a single exit at the bottom.
|
|
// The point of exit cannot be a branch out of the structured block.
|
|
// longjmp() and throw() must not violate the entry/exit criteria.
|
|
CS->getCapturedDecl()->setNothrow();
|
|
|
|
getCurFunction()->setHasBranchProtectedScope();
|
|
|
|
return OMPTeamsDirective::Create(Context, StartLoc, EndLoc, Clauses, AStmt);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind, Expr *Expr,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
OMPClause *Res = nullptr;
|
|
switch (Kind) {
|
|
case OMPC_if:
|
|
Res = ActOnOpenMPIfClause(Expr, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_final:
|
|
Res = ActOnOpenMPFinalClause(Expr, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_num_threads:
|
|
Res = ActOnOpenMPNumThreadsClause(Expr, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_safelen:
|
|
Res = ActOnOpenMPSafelenClause(Expr, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_collapse:
|
|
Res = ActOnOpenMPCollapseClause(Expr, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_default:
|
|
case OMPC_proc_bind:
|
|
case OMPC_schedule:
|
|
case OMPC_private:
|
|
case OMPC_firstprivate:
|
|
case OMPC_lastprivate:
|
|
case OMPC_shared:
|
|
case OMPC_reduction:
|
|
case OMPC_linear:
|
|
case OMPC_aligned:
|
|
case OMPC_copyin:
|
|
case OMPC_copyprivate:
|
|
case OMPC_ordered:
|
|
case OMPC_nowait:
|
|
case OMPC_untied:
|
|
case OMPC_mergeable:
|
|
case OMPC_threadprivate:
|
|
case OMPC_flush:
|
|
case OMPC_read:
|
|
case OMPC_write:
|
|
case OMPC_update:
|
|
case OMPC_capture:
|
|
case OMPC_seq_cst:
|
|
case OMPC_unknown:
|
|
llvm_unreachable("Clause is not allowed.");
|
|
}
|
|
return Res;
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPIfClause(Expr *Condition, SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
Expr *ValExpr = Condition;
|
|
if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
|
|
!Condition->isInstantiationDependent() &&
|
|
!Condition->containsUnexpandedParameterPack()) {
|
|
ExprResult Val = ActOnBooleanCondition(DSAStack->getCurScope(),
|
|
Condition->getExprLoc(), Condition);
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
|
|
ValExpr = Val.get();
|
|
}
|
|
|
|
return new (Context) OMPIfClause(ValExpr, StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPFinalClause(Expr *Condition,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
Expr *ValExpr = Condition;
|
|
if (!Condition->isValueDependent() && !Condition->isTypeDependent() &&
|
|
!Condition->isInstantiationDependent() &&
|
|
!Condition->containsUnexpandedParameterPack()) {
|
|
ExprResult Val = ActOnBooleanCondition(DSAStack->getCurScope(),
|
|
Condition->getExprLoc(), Condition);
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
|
|
ValExpr = Val.get();
|
|
}
|
|
|
|
return new (Context) OMPFinalClause(ValExpr, StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
ExprResult Sema::PerformOpenMPImplicitIntegerConversion(SourceLocation Loc,
|
|
Expr *Op) {
|
|
if (!Op)
|
|
return ExprError();
|
|
|
|
class IntConvertDiagnoser : public ICEConvertDiagnoser {
|
|
public:
|
|
IntConvertDiagnoser()
|
|
: ICEConvertDiagnoser(/*AllowScopedEnumerations*/ false, false, true) {}
|
|
SemaDiagnosticBuilder diagnoseNotInt(Sema &S, SourceLocation Loc,
|
|
QualType T) override {
|
|
return S.Diag(Loc, diag::err_omp_not_integral) << T;
|
|
}
|
|
SemaDiagnosticBuilder diagnoseIncomplete(Sema &S, SourceLocation Loc,
|
|
QualType T) override {
|
|
return S.Diag(Loc, diag::err_omp_incomplete_type) << T;
|
|
}
|
|
SemaDiagnosticBuilder diagnoseExplicitConv(Sema &S, SourceLocation Loc,
|
|
QualType T,
|
|
QualType ConvTy) override {
|
|
return S.Diag(Loc, diag::err_omp_explicit_conversion) << T << ConvTy;
|
|
}
|
|
SemaDiagnosticBuilder noteExplicitConv(Sema &S, CXXConversionDecl *Conv,
|
|
QualType ConvTy) override {
|
|
return S.Diag(Conv->getLocation(), diag::note_omp_conversion_here)
|
|
<< ConvTy->isEnumeralType() << ConvTy;
|
|
}
|
|
SemaDiagnosticBuilder diagnoseAmbiguous(Sema &S, SourceLocation Loc,
|
|
QualType T) override {
|
|
return S.Diag(Loc, diag::err_omp_ambiguous_conversion) << T;
|
|
}
|
|
SemaDiagnosticBuilder noteAmbiguous(Sema &S, CXXConversionDecl *Conv,
|
|
QualType ConvTy) override {
|
|
return S.Diag(Conv->getLocation(), diag::note_omp_conversion_here)
|
|
<< ConvTy->isEnumeralType() << ConvTy;
|
|
}
|
|
SemaDiagnosticBuilder diagnoseConversion(Sema &, SourceLocation, QualType,
|
|
QualType) override {
|
|
llvm_unreachable("conversion functions are permitted");
|
|
}
|
|
} ConvertDiagnoser;
|
|
return PerformContextualImplicitConversion(Loc, Op, ConvertDiagnoser);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPNumThreadsClause(Expr *NumThreads,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
Expr *ValExpr = NumThreads;
|
|
if (!NumThreads->isValueDependent() && !NumThreads->isTypeDependent() &&
|
|
!NumThreads->containsUnexpandedParameterPack()) {
|
|
SourceLocation NumThreadsLoc = NumThreads->getLocStart();
|
|
ExprResult Val =
|
|
PerformOpenMPImplicitIntegerConversion(NumThreadsLoc, NumThreads);
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
|
|
ValExpr = Val.get();
|
|
|
|
// OpenMP [2.5, Restrictions]
|
|
// The num_threads expression must evaluate to a positive integer value.
|
|
llvm::APSInt Result;
|
|
if (ValExpr->isIntegerConstantExpr(Result, Context) && Result.isSigned() &&
|
|
!Result.isStrictlyPositive()) {
|
|
Diag(NumThreadsLoc, diag::err_omp_negative_expression_in_clause)
|
|
<< "num_threads" << NumThreads->getSourceRange();
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return new (Context)
|
|
OMPNumThreadsClause(ValExpr, StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
|
|
ExprResult Sema::VerifyPositiveIntegerConstantInClause(Expr *E,
|
|
OpenMPClauseKind CKind) {
|
|
if (!E)
|
|
return ExprError();
|
|
if (E->isValueDependent() || E->isTypeDependent() ||
|
|
E->isInstantiationDependent() || E->containsUnexpandedParameterPack())
|
|
return E;
|
|
llvm::APSInt Result;
|
|
ExprResult ICE = VerifyIntegerConstantExpression(E, &Result);
|
|
if (ICE.isInvalid())
|
|
return ExprError();
|
|
if (!Result.isStrictlyPositive()) {
|
|
Diag(E->getExprLoc(), diag::err_omp_negative_expression_in_clause)
|
|
<< getOpenMPClauseName(CKind) << E->getSourceRange();
|
|
return ExprError();
|
|
}
|
|
if (CKind == OMPC_aligned && !Result.isPowerOf2()) {
|
|
Diag(E->getExprLoc(), diag::warn_omp_alignment_not_power_of_two)
|
|
<< E->getSourceRange();
|
|
return ExprError();
|
|
}
|
|
return ICE;
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPSafelenClause(Expr *Len, SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
// OpenMP [2.8.1, simd construct, Description]
|
|
// The parameter of the safelen clause must be a constant
|
|
// positive integer expression.
|
|
ExprResult Safelen = VerifyPositiveIntegerConstantInClause(Len, OMPC_safelen);
|
|
if (Safelen.isInvalid())
|
|
return nullptr;
|
|
return new (Context)
|
|
OMPSafelenClause(Safelen.get(), StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPCollapseClause(Expr *NumForLoops,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
// OpenMP [2.7.1, loop construct, Description]
|
|
// OpenMP [2.8.1, simd construct, Description]
|
|
// OpenMP [2.9.6, distribute construct, Description]
|
|
// The parameter of the collapse clause must be a constant
|
|
// positive integer expression.
|
|
ExprResult NumForLoopsResult =
|
|
VerifyPositiveIntegerConstantInClause(NumForLoops, OMPC_collapse);
|
|
if (NumForLoopsResult.isInvalid())
|
|
return nullptr;
|
|
return new (Context)
|
|
OMPCollapseClause(NumForLoopsResult.get(), StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPSimpleClause(
|
|
OpenMPClauseKind Kind, unsigned Argument, SourceLocation ArgumentLoc,
|
|
SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation EndLoc) {
|
|
OMPClause *Res = nullptr;
|
|
switch (Kind) {
|
|
case OMPC_default:
|
|
Res =
|
|
ActOnOpenMPDefaultClause(static_cast<OpenMPDefaultClauseKind>(Argument),
|
|
ArgumentLoc, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_proc_bind:
|
|
Res = ActOnOpenMPProcBindClause(
|
|
static_cast<OpenMPProcBindClauseKind>(Argument), ArgumentLoc, StartLoc,
|
|
LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_if:
|
|
case OMPC_final:
|
|
case OMPC_num_threads:
|
|
case OMPC_safelen:
|
|
case OMPC_collapse:
|
|
case OMPC_schedule:
|
|
case OMPC_private:
|
|
case OMPC_firstprivate:
|
|
case OMPC_lastprivate:
|
|
case OMPC_shared:
|
|
case OMPC_reduction:
|
|
case OMPC_linear:
|
|
case OMPC_aligned:
|
|
case OMPC_copyin:
|
|
case OMPC_copyprivate:
|
|
case OMPC_ordered:
|
|
case OMPC_nowait:
|
|
case OMPC_untied:
|
|
case OMPC_mergeable:
|
|
case OMPC_threadprivate:
|
|
case OMPC_flush:
|
|
case OMPC_read:
|
|
case OMPC_write:
|
|
case OMPC_update:
|
|
case OMPC_capture:
|
|
case OMPC_seq_cst:
|
|
case OMPC_unknown:
|
|
llvm_unreachable("Clause is not allowed.");
|
|
}
|
|
return Res;
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPDefaultClause(OpenMPDefaultClauseKind Kind,
|
|
SourceLocation KindKwLoc,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
if (Kind == OMPC_DEFAULT_unknown) {
|
|
std::string Values;
|
|
static_assert(OMPC_DEFAULT_unknown > 0,
|
|
"OMPC_DEFAULT_unknown not greater than 0");
|
|
std::string Sep(", ");
|
|
for (unsigned i = 0; i < OMPC_DEFAULT_unknown; ++i) {
|
|
Values += "'";
|
|
Values += getOpenMPSimpleClauseTypeName(OMPC_default, i);
|
|
Values += "'";
|
|
switch (i) {
|
|
case OMPC_DEFAULT_unknown - 2:
|
|
Values += " or ";
|
|
break;
|
|
case OMPC_DEFAULT_unknown - 1:
|
|
break;
|
|
default:
|
|
Values += Sep;
|
|
break;
|
|
}
|
|
}
|
|
Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
|
|
<< Values << getOpenMPClauseName(OMPC_default);
|
|
return nullptr;
|
|
}
|
|
switch (Kind) {
|
|
case OMPC_DEFAULT_none:
|
|
DSAStack->setDefaultDSANone(KindKwLoc);
|
|
break;
|
|
case OMPC_DEFAULT_shared:
|
|
DSAStack->setDefaultDSAShared(KindKwLoc);
|
|
break;
|
|
case OMPC_DEFAULT_unknown:
|
|
llvm_unreachable("Clause kind is not allowed.");
|
|
break;
|
|
}
|
|
return new (Context)
|
|
OMPDefaultClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPProcBindClause(OpenMPProcBindClauseKind Kind,
|
|
SourceLocation KindKwLoc,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
if (Kind == OMPC_PROC_BIND_unknown) {
|
|
std::string Values;
|
|
std::string Sep(", ");
|
|
for (unsigned i = 0; i < OMPC_PROC_BIND_unknown; ++i) {
|
|
Values += "'";
|
|
Values += getOpenMPSimpleClauseTypeName(OMPC_proc_bind, i);
|
|
Values += "'";
|
|
switch (i) {
|
|
case OMPC_PROC_BIND_unknown - 2:
|
|
Values += " or ";
|
|
break;
|
|
case OMPC_PROC_BIND_unknown - 1:
|
|
break;
|
|
default:
|
|
Values += Sep;
|
|
break;
|
|
}
|
|
}
|
|
Diag(KindKwLoc, diag::err_omp_unexpected_clause_value)
|
|
<< Values << getOpenMPClauseName(OMPC_proc_bind);
|
|
return nullptr;
|
|
}
|
|
return new (Context)
|
|
OMPProcBindClause(Kind, KindKwLoc, StartLoc, LParenLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPSingleExprWithArgClause(
|
|
OpenMPClauseKind Kind, unsigned Argument, Expr *Expr,
|
|
SourceLocation StartLoc, SourceLocation LParenLoc,
|
|
SourceLocation ArgumentLoc, SourceLocation CommaLoc,
|
|
SourceLocation EndLoc) {
|
|
OMPClause *Res = nullptr;
|
|
switch (Kind) {
|
|
case OMPC_schedule:
|
|
Res = ActOnOpenMPScheduleClause(
|
|
static_cast<OpenMPScheduleClauseKind>(Argument), Expr, StartLoc,
|
|
LParenLoc, ArgumentLoc, CommaLoc, EndLoc);
|
|
break;
|
|
case OMPC_if:
|
|
case OMPC_final:
|
|
case OMPC_num_threads:
|
|
case OMPC_safelen:
|
|
case OMPC_collapse:
|
|
case OMPC_default:
|
|
case OMPC_proc_bind:
|
|
case OMPC_private:
|
|
case OMPC_firstprivate:
|
|
case OMPC_lastprivate:
|
|
case OMPC_shared:
|
|
case OMPC_reduction:
|
|
case OMPC_linear:
|
|
case OMPC_aligned:
|
|
case OMPC_copyin:
|
|
case OMPC_copyprivate:
|
|
case OMPC_ordered:
|
|
case OMPC_nowait:
|
|
case OMPC_untied:
|
|
case OMPC_mergeable:
|
|
case OMPC_threadprivate:
|
|
case OMPC_flush:
|
|
case OMPC_read:
|
|
case OMPC_write:
|
|
case OMPC_update:
|
|
case OMPC_capture:
|
|
case OMPC_seq_cst:
|
|
case OMPC_unknown:
|
|
llvm_unreachable("Clause is not allowed.");
|
|
}
|
|
return Res;
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPScheduleClause(
|
|
OpenMPScheduleClauseKind Kind, Expr *ChunkSize, SourceLocation StartLoc,
|
|
SourceLocation LParenLoc, SourceLocation KindLoc, SourceLocation CommaLoc,
|
|
SourceLocation EndLoc) {
|
|
if (Kind == OMPC_SCHEDULE_unknown) {
|
|
std::string Values;
|
|
std::string Sep(", ");
|
|
for (unsigned i = 0; i < OMPC_SCHEDULE_unknown; ++i) {
|
|
Values += "'";
|
|
Values += getOpenMPSimpleClauseTypeName(OMPC_schedule, i);
|
|
Values += "'";
|
|
switch (i) {
|
|
case OMPC_SCHEDULE_unknown - 2:
|
|
Values += " or ";
|
|
break;
|
|
case OMPC_SCHEDULE_unknown - 1:
|
|
break;
|
|
default:
|
|
Values += Sep;
|
|
break;
|
|
}
|
|
}
|
|
Diag(KindLoc, diag::err_omp_unexpected_clause_value)
|
|
<< Values << getOpenMPClauseName(OMPC_schedule);
|
|
return nullptr;
|
|
}
|
|
Expr *ValExpr = ChunkSize;
|
|
if (ChunkSize) {
|
|
if (!ChunkSize->isValueDependent() && !ChunkSize->isTypeDependent() &&
|
|
!ChunkSize->isInstantiationDependent() &&
|
|
!ChunkSize->containsUnexpandedParameterPack()) {
|
|
SourceLocation ChunkSizeLoc = ChunkSize->getLocStart();
|
|
ExprResult Val =
|
|
PerformOpenMPImplicitIntegerConversion(ChunkSizeLoc, ChunkSize);
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
|
|
ValExpr = Val.get();
|
|
|
|
// OpenMP [2.7.1, Restrictions]
|
|
// chunk_size must be a loop invariant integer expression with a positive
|
|
// value.
|
|
llvm::APSInt Result;
|
|
if (ValExpr->isIntegerConstantExpr(Result, Context) &&
|
|
Result.isSigned() && !Result.isStrictlyPositive()) {
|
|
Diag(ChunkSizeLoc, diag::err_omp_negative_expression_in_clause)
|
|
<< "schedule" << ChunkSize->getSourceRange();
|
|
return nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
return new (Context) OMPScheduleClause(StartLoc, LParenLoc, KindLoc, CommaLoc,
|
|
EndLoc, Kind, ValExpr);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPClause(OpenMPClauseKind Kind,
|
|
SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
OMPClause *Res = nullptr;
|
|
switch (Kind) {
|
|
case OMPC_ordered:
|
|
Res = ActOnOpenMPOrderedClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_nowait:
|
|
Res = ActOnOpenMPNowaitClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_untied:
|
|
Res = ActOnOpenMPUntiedClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_mergeable:
|
|
Res = ActOnOpenMPMergeableClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_read:
|
|
Res = ActOnOpenMPReadClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_write:
|
|
Res = ActOnOpenMPWriteClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_update:
|
|
Res = ActOnOpenMPUpdateClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_capture:
|
|
Res = ActOnOpenMPCaptureClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_seq_cst:
|
|
Res = ActOnOpenMPSeqCstClause(StartLoc, EndLoc);
|
|
break;
|
|
case OMPC_if:
|
|
case OMPC_final:
|
|
case OMPC_num_threads:
|
|
case OMPC_safelen:
|
|
case OMPC_collapse:
|
|
case OMPC_schedule:
|
|
case OMPC_private:
|
|
case OMPC_firstprivate:
|
|
case OMPC_lastprivate:
|
|
case OMPC_shared:
|
|
case OMPC_reduction:
|
|
case OMPC_linear:
|
|
case OMPC_aligned:
|
|
case OMPC_copyin:
|
|
case OMPC_copyprivate:
|
|
case OMPC_default:
|
|
case OMPC_proc_bind:
|
|
case OMPC_threadprivate:
|
|
case OMPC_flush:
|
|
case OMPC_unknown:
|
|
llvm_unreachable("Clause is not allowed.");
|
|
}
|
|
return Res;
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPOrderedClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
DSAStack->setOrderedRegion();
|
|
return new (Context) OMPOrderedClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPNowaitClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPNowaitClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPUntiedClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPUntiedClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPMergeableClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPMergeableClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPReadClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPReadClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPWriteClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPWriteClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPUpdateClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPUpdateClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPCaptureClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPCaptureClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPSeqCstClause(SourceLocation StartLoc,
|
|
SourceLocation EndLoc) {
|
|
return new (Context) OMPSeqCstClause(StartLoc, EndLoc);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPVarListClause(
|
|
OpenMPClauseKind Kind, ArrayRef<Expr *> VarList, Expr *TailExpr,
|
|
SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation ColonLoc,
|
|
SourceLocation EndLoc, CXXScopeSpec &ReductionIdScopeSpec,
|
|
const DeclarationNameInfo &ReductionId) {
|
|
OMPClause *Res = nullptr;
|
|
switch (Kind) {
|
|
case OMPC_private:
|
|
Res = ActOnOpenMPPrivateClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_firstprivate:
|
|
Res = ActOnOpenMPFirstprivateClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_lastprivate:
|
|
Res = ActOnOpenMPLastprivateClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_shared:
|
|
Res = ActOnOpenMPSharedClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_reduction:
|
|
Res = ActOnOpenMPReductionClause(VarList, StartLoc, LParenLoc, ColonLoc,
|
|
EndLoc, ReductionIdScopeSpec, ReductionId);
|
|
break;
|
|
case OMPC_linear:
|
|
Res = ActOnOpenMPLinearClause(VarList, TailExpr, StartLoc, LParenLoc,
|
|
ColonLoc, EndLoc);
|
|
break;
|
|
case OMPC_aligned:
|
|
Res = ActOnOpenMPAlignedClause(VarList, TailExpr, StartLoc, LParenLoc,
|
|
ColonLoc, EndLoc);
|
|
break;
|
|
case OMPC_copyin:
|
|
Res = ActOnOpenMPCopyinClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_copyprivate:
|
|
Res = ActOnOpenMPCopyprivateClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_flush:
|
|
Res = ActOnOpenMPFlushClause(VarList, StartLoc, LParenLoc, EndLoc);
|
|
break;
|
|
case OMPC_if:
|
|
case OMPC_final:
|
|
case OMPC_num_threads:
|
|
case OMPC_safelen:
|
|
case OMPC_collapse:
|
|
case OMPC_default:
|
|
case OMPC_proc_bind:
|
|
case OMPC_schedule:
|
|
case OMPC_ordered:
|
|
case OMPC_nowait:
|
|
case OMPC_untied:
|
|
case OMPC_mergeable:
|
|
case OMPC_threadprivate:
|
|
case OMPC_read:
|
|
case OMPC_write:
|
|
case OMPC_update:
|
|
case OMPC_capture:
|
|
case OMPC_seq_cst:
|
|
case OMPC_unknown:
|
|
llvm_unreachable("Clause is not allowed.");
|
|
}
|
|
return Res;
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPPrivateClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
SmallVector<Expr *, 8> PrivateCopies;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP private clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
PrivateCopies.push_back(nullptr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.9.3.3, Restrictions, p.1]
|
|
// A variable that is part of another variable (as an array or
|
|
// structure element) cannot appear in a private clause.
|
|
DeclRefExpr *DE = dyn_cast_or_null<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
Decl *D = DE->getDecl();
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
|
|
QualType Type = VD->getType();
|
|
if (Type->isDependentType() || Type->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
PrivateCopies.push_back(nullptr);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
|
|
// A variable that appears in a private clause must not have an incomplete
|
|
// type or a reference type.
|
|
if (RequireCompleteType(ELoc, Type,
|
|
diag::err_omp_private_incomplete_type)) {
|
|
continue;
|
|
}
|
|
if (Type->isReferenceType()) {
|
|
Diag(ELoc, diag::err_omp_clause_ref_type_arg)
|
|
<< getOpenMPClauseName(OMPC_private) << Type;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.3.3, Restrictions, C/C++, p.1]
|
|
// A variable of class type (or array thereof) that appears in a private
|
|
// clause requires an accessible, unambiguous default constructor for the
|
|
// class type.
|
|
while (Type->isArrayType()) {
|
|
Type = cast<ArrayType>(Type.getTypePtr())->getElementType();
|
|
}
|
|
|
|
// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
|
|
// in a Construct]
|
|
// Variables with the predetermined data-sharing attributes may not be
|
|
// listed in data-sharing attributes clauses, except for the cases
|
|
// listed below. For these exceptions only, listing a predetermined
|
|
// variable in a data-sharing attribute clause is allowed and overrides
|
|
// the variable's predetermined data-sharing attributes.
|
|
DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_private) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_private);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
// Generate helper private variable and initialize it with the default
|
|
// value. The address of the original variable is replaced by the address of
|
|
// the new private variable in CodeGen. This new variable is not added to
|
|
// IdResolver, so the code in the OpenMP region uses original variable for
|
|
// proper diagnostics.
|
|
auto VDPrivate =
|
|
VarDecl::Create(Context, CurContext, DE->getLocStart(),
|
|
DE->getExprLoc(), VD->getIdentifier(), VD->getType(),
|
|
VD->getTypeSourceInfo(), /*S*/ SC_Auto);
|
|
ActOnUninitializedDecl(VDPrivate, /*TypeMayContainAuto*/ false);
|
|
if (VDPrivate->isInvalidDecl())
|
|
continue;
|
|
CurContext->addDecl(VDPrivate);
|
|
auto VDPrivateRefExpr = DeclRefExpr::Create(
|
|
Context, /*QualifierLoc*/ NestedNameSpecifierLoc(),
|
|
/*TemplateKWLoc*/ SourceLocation(), VDPrivate,
|
|
/*isEnclosingLocal*/ false, /*NameLoc*/ SourceLocation(), DE->getType(),
|
|
/*VK*/ VK_LValue);
|
|
|
|
DSAStack->addDSA(VD, DE, OMPC_private);
|
|
Vars.push_back(DE);
|
|
PrivateCopies.push_back(VDPrivateRefExpr);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPPrivateClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars,
|
|
PrivateCopies);
|
|
}
|
|
|
|
namespace {
|
|
class DiagsUninitializedSeveretyRAII {
|
|
private:
|
|
DiagnosticsEngine &Diags;
|
|
SourceLocation SavedLoc;
|
|
bool IsIgnored;
|
|
|
|
public:
|
|
DiagsUninitializedSeveretyRAII(DiagnosticsEngine &Diags, SourceLocation Loc,
|
|
bool IsIgnored)
|
|
: Diags(Diags), SavedLoc(Loc), IsIgnored(IsIgnored) {
|
|
if (!IsIgnored) {
|
|
Diags.setSeverity(/*Diag*/ diag::warn_uninit_self_reference_in_init,
|
|
/*Map*/ diag::Severity::Ignored, Loc);
|
|
}
|
|
}
|
|
~DiagsUninitializedSeveretyRAII() {
|
|
if (!IsIgnored)
|
|
Diags.popMappings(SavedLoc);
|
|
}
|
|
};
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPFirstprivateClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
SmallVector<Expr *, 8> PrivateCopies;
|
|
SmallVector<Expr *, 8> Inits;
|
|
bool IsImplicitClause =
|
|
StartLoc.isInvalid() && LParenLoc.isInvalid() && EndLoc.isInvalid();
|
|
auto ImplicitClauseLoc = DSAStack->getConstructLoc();
|
|
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP firstprivate clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
PrivateCopies.push_back(nullptr);
|
|
Inits.push_back(nullptr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc =
|
|
IsImplicitClause ? ImplicitClauseLoc : RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.9.3.3, Restrictions, p.1]
|
|
// A variable that is part of another variable (as an array or
|
|
// structure element) cannot appear in a private clause.
|
|
DeclRefExpr *DE = dyn_cast_or_null<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
Decl *D = DE->getDecl();
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
|
|
QualType Type = VD->getType();
|
|
if (Type->isDependentType() || Type->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
PrivateCopies.push_back(nullptr);
|
|
Inits.push_back(nullptr);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
|
|
// A variable that appears in a private clause must not have an incomplete
|
|
// type or a reference type.
|
|
if (RequireCompleteType(ELoc, Type,
|
|
diag::err_omp_firstprivate_incomplete_type)) {
|
|
continue;
|
|
}
|
|
if (Type->isReferenceType()) {
|
|
if (IsImplicitClause) {
|
|
Diag(ImplicitClauseLoc,
|
|
diag::err_omp_task_predetermined_firstprivate_ref_type_arg)
|
|
<< Type;
|
|
Diag(RefExpr->getExprLoc(), diag::note_used_here);
|
|
} else {
|
|
Diag(ELoc, diag::err_omp_clause_ref_type_arg)
|
|
<< getOpenMPClauseName(OMPC_firstprivate) << Type;
|
|
}
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.3.4, Restrictions, C/C++, p.1]
|
|
// A variable of class type (or array thereof) that appears in a private
|
|
// clause requires an accessible, unambiguous copy constructor for the
|
|
// class type.
|
|
Type = Context.getBaseElementType(Type);
|
|
|
|
// If an implicit firstprivate variable found it was checked already.
|
|
if (!IsImplicitClause) {
|
|
DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD, false);
|
|
Type = Type.getNonReferenceType().getCanonicalType();
|
|
bool IsConstant = Type.isConstant(Context);
|
|
Type = Context.getBaseElementType(Type);
|
|
// OpenMP [2.4.13, Data-sharing Attribute Clauses]
|
|
// A list item that specifies a given variable may not appear in more
|
|
// than one clause on the same directive, except that a variable may be
|
|
// specified in both firstprivate and lastprivate clauses.
|
|
if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_firstprivate &&
|
|
DVar.CKind != OMPC_lastprivate && DVar.RefExpr) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_firstprivate);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
|
|
// in a Construct]
|
|
// Variables with the predetermined data-sharing attributes may not be
|
|
// listed in data-sharing attributes clauses, except for the cases
|
|
// listed below. For these exceptions only, listing a predetermined
|
|
// variable in a data-sharing attribute clause is allowed and overrides
|
|
// the variable's predetermined data-sharing attributes.
|
|
// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
|
|
// in a Construct, C/C++, p.2]
|
|
// Variables with const-qualified type having no mutable member may be
|
|
// listed in a firstprivate clause, even if they are static data members.
|
|
if (!(IsConstant || VD->isStaticDataMember()) && !DVar.RefExpr &&
|
|
DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_shared) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_firstprivate);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
OpenMPDirectiveKind CurrDir = DSAStack->getCurrentDirective();
|
|
// OpenMP [2.9.3.4, Restrictions, p.2]
|
|
// A list item that is private within a parallel region must not appear
|
|
// in a firstprivate clause on a worksharing construct if any of the
|
|
// worksharing regions arising from the worksharing construct ever bind
|
|
// to any of the parallel regions arising from the parallel construct.
|
|
if (isOpenMPWorksharingDirective(CurrDir) &&
|
|
!isOpenMPParallelDirective(CurrDir)) {
|
|
DVar = DSAStack->getImplicitDSA(VD, true);
|
|
if (DVar.CKind != OMPC_shared &&
|
|
(isOpenMPParallelDirective(DVar.DKind) ||
|
|
DVar.DKind == OMPD_unknown)) {
|
|
Diag(ELoc, diag::err_omp_required_access)
|
|
<< getOpenMPClauseName(OMPC_firstprivate)
|
|
<< getOpenMPClauseName(OMPC_shared);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
}
|
|
// OpenMP [2.9.3.4, Restrictions, p.3]
|
|
// A list item that appears in a reduction clause of a parallel construct
|
|
// must not appear in a firstprivate clause on a worksharing or task
|
|
// construct if any of the worksharing or task regions arising from the
|
|
// worksharing or task construct ever bind to any of the parallel regions
|
|
// arising from the parallel construct.
|
|
// OpenMP [2.9.3.4, Restrictions, p.4]
|
|
// A list item that appears in a reduction clause in worksharing
|
|
// construct must not appear in a firstprivate clause in a task construct
|
|
// encountered during execution of any of the worksharing regions arising
|
|
// from the worksharing construct.
|
|
if (CurrDir == OMPD_task) {
|
|
DVar =
|
|
DSAStack->hasInnermostDSA(VD, MatchesAnyClause(OMPC_reduction),
|
|
[](OpenMPDirectiveKind K) -> bool {
|
|
return isOpenMPParallelDirective(K) ||
|
|
isOpenMPWorksharingDirective(K);
|
|
},
|
|
false);
|
|
if (DVar.CKind == OMPC_reduction &&
|
|
(isOpenMPParallelDirective(DVar.DKind) ||
|
|
isOpenMPWorksharingDirective(DVar.DKind))) {
|
|
Diag(ELoc, diag::err_omp_parallel_reduction_in_task_firstprivate)
|
|
<< getOpenMPDirectiveName(DVar.DKind);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
Type = Type.getUnqualifiedType();
|
|
auto VDPrivate = VarDecl::Create(Context, CurContext, DE->getLocStart(),
|
|
ELoc, VD->getIdentifier(), VD->getType(),
|
|
VD->getTypeSourceInfo(), /*S*/ SC_Auto);
|
|
// Generate helper private variable and initialize it with the value of the
|
|
// original variable. The address of the original variable is replaced by
|
|
// the address of the new private variable in the CodeGen. This new variable
|
|
// is not added to IdResolver, so the code in the OpenMP region uses
|
|
// original variable for proper diagnostics and variable capturing.
|
|
Expr *VDInitRefExpr = nullptr;
|
|
// For arrays generate initializer for single element and replace it by the
|
|
// original array element in CodeGen.
|
|
if (DE->getType()->isArrayType()) {
|
|
auto VDInit = VarDecl::Create(Context, CurContext, DE->getLocStart(),
|
|
ELoc, VD->getIdentifier(), Type,
|
|
VD->getTypeSourceInfo(), /*S*/ SC_Auto);
|
|
CurContext->addHiddenDecl(VDInit);
|
|
VDInitRefExpr = DeclRefExpr::Create(
|
|
Context, /*QualifierLoc*/ NestedNameSpecifierLoc(),
|
|
/*TemplateKWLoc*/ SourceLocation(), VDInit,
|
|
/*isEnclosingLocal*/ false, ELoc, Type,
|
|
/*VK*/ VK_LValue);
|
|
VDInit->setIsUsed();
|
|
auto Init = DefaultLvalueConversion(VDInitRefExpr).get();
|
|
InitializedEntity Entity = InitializedEntity::InitializeVariable(VDInit);
|
|
InitializationKind Kind = InitializationKind::CreateCopy(ELoc, ELoc);
|
|
|
|
InitializationSequence InitSeq(*this, Entity, Kind, Init);
|
|
ExprResult Result = InitSeq.Perform(*this, Entity, Kind, Init);
|
|
if (Result.isInvalid())
|
|
VDPrivate->setInvalidDecl();
|
|
else
|
|
VDPrivate->setInit(Result.getAs<Expr>());
|
|
} else {
|
|
AddInitializerToDecl(VDPrivate, DefaultLvalueConversion(DE).get(),
|
|
/*DirectInit*/ false, /*TypeMayContainAuto*/ false);
|
|
}
|
|
if (VDPrivate->isInvalidDecl()) {
|
|
if (IsImplicitClause) {
|
|
Diag(DE->getExprLoc(),
|
|
diag::note_omp_task_predetermined_firstprivate_here);
|
|
}
|
|
continue;
|
|
}
|
|
CurContext->addDecl(VDPrivate);
|
|
auto VDPrivateRefExpr = DeclRefExpr::Create(
|
|
Context, /*QualifierLoc*/ NestedNameSpecifierLoc(),
|
|
/*TemplateKWLoc*/ SourceLocation(), VDPrivate,
|
|
/*isEnclosingLocal*/ false, DE->getLocStart(), DE->getType(),
|
|
/*VK*/ VK_LValue);
|
|
DSAStack->addDSA(VD, DE, OMPC_firstprivate);
|
|
Vars.push_back(DE);
|
|
PrivateCopies.push_back(VDPrivateRefExpr);
|
|
Inits.push_back(VDInitRefExpr);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPFirstprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
|
|
Vars, PrivateCopies, Inits);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPLastprivateClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP lastprivate clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.14.3.5, Restrictions, p.1]
|
|
// A variable that is part of another variable (as an array or structure
|
|
// element) cannot appear in a lastprivate clause.
|
|
DeclRefExpr *DE = dyn_cast_or_null<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
Decl *D = DE->getDecl();
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
|
|
QualType Type = VD->getType();
|
|
if (Type->isDependentType() || Type->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.3.5, Restrictions, C/C++, p.2]
|
|
// A variable that appears in a lastprivate clause must not have an
|
|
// incomplete type or a reference type.
|
|
if (RequireCompleteType(ELoc, Type,
|
|
diag::err_omp_lastprivate_incomplete_type)) {
|
|
continue;
|
|
}
|
|
if (Type->isReferenceType()) {
|
|
Diag(ELoc, diag::err_omp_clause_ref_type_arg)
|
|
<< getOpenMPClauseName(OMPC_lastprivate) << Type;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.1.1, Data-sharing Attribute Rules for Variables Referenced
|
|
// in a Construct]
|
|
// Variables with the predetermined data-sharing attributes may not be
|
|
// listed in data-sharing attributes clauses, except for the cases
|
|
// listed below.
|
|
DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_lastprivate &&
|
|
DVar.CKind != OMPC_firstprivate &&
|
|
(DVar.CKind != OMPC_private || DVar.RefExpr != nullptr)) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_lastprivate);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
OpenMPDirectiveKind CurrDir = DSAStack->getCurrentDirective();
|
|
// OpenMP [2.14.3.5, Restrictions, p.2]
|
|
// A list item that is private within a parallel region, or that appears in
|
|
// the reduction clause of a parallel construct, must not appear in a
|
|
// lastprivate clause on a worksharing construct if any of the corresponding
|
|
// worksharing regions ever binds to any of the corresponding parallel
|
|
// regions.
|
|
if (isOpenMPWorksharingDirective(CurrDir) &&
|
|
!isOpenMPParallelDirective(CurrDir)) {
|
|
DVar = DSAStack->getImplicitDSA(VD, true);
|
|
if (DVar.CKind != OMPC_shared) {
|
|
Diag(ELoc, diag::err_omp_required_access)
|
|
<< getOpenMPClauseName(OMPC_lastprivate)
|
|
<< getOpenMPClauseName(OMPC_shared);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
}
|
|
// OpenMP [2.14.3.5, Restrictions, C++, p.1,2]
|
|
// A variable of class type (or array thereof) that appears in a
|
|
// lastprivate clause requires an accessible, unambiguous default
|
|
// constructor for the class type, unless the list item is also specified
|
|
// in a firstprivate clause.
|
|
// A variable of class type (or array thereof) that appears in a
|
|
// lastprivate clause requires an accessible, unambiguous copy assignment
|
|
// operator for the class type.
|
|
while (Type.getNonReferenceType()->isArrayType())
|
|
Type = cast<ArrayType>(Type.getNonReferenceType().getTypePtr())
|
|
->getElementType();
|
|
CXXRecordDecl *RD = getLangOpts().CPlusPlus
|
|
? Type.getNonReferenceType()->getAsCXXRecordDecl()
|
|
: nullptr;
|
|
// FIXME This code must be replaced by actual copying and destructing of the
|
|
// lastprivate variable.
|
|
if (RD) {
|
|
CXXMethodDecl *MD = LookupCopyingAssignment(RD, 0, false, 0);
|
|
DeclAccessPair FoundDecl = DeclAccessPair::make(MD, MD->getAccess());
|
|
if (MD) {
|
|
if (CheckMemberAccess(ELoc, RD, FoundDecl) == AR_inaccessible ||
|
|
MD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_lastprivate) << 2;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, MD);
|
|
DiagnoseUseOfDecl(MD, ELoc);
|
|
}
|
|
|
|
CXXDestructorDecl *DD = RD->getDestructor();
|
|
if (DD) {
|
|
PartialDiagnostic PD =
|
|
PartialDiagnostic(PartialDiagnostic::NullDiagnostic());
|
|
if (CheckDestructorAccess(ELoc, DD, PD) == AR_inaccessible ||
|
|
DD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_lastprivate) << 4;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, DD);
|
|
DiagnoseUseOfDecl(DD, ELoc);
|
|
}
|
|
}
|
|
|
|
if (DVar.CKind != OMPC_firstprivate)
|
|
DSAStack->addDSA(VD, DE, OMPC_lastprivate);
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPLastprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc,
|
|
Vars);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPSharedClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP shared clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.14.3.2, Restrictions, p.1]
|
|
// A variable that is part of another variable (as an array or structure
|
|
// element) cannot appear in a shared unless it is a static data member
|
|
// of a C++ class.
|
|
DeclRefExpr *DE = dyn_cast<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
Decl *D = DE->getDecl();
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
|
|
QualType Type = VD->getType();
|
|
if (Type->isDependentType() || Type->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
|
|
// in a Construct]
|
|
// Variables with the predetermined data-sharing attributes may not be
|
|
// listed in data-sharing attributes clauses, except for the cases
|
|
// listed below. For these exceptions only, listing a predetermined
|
|
// variable in a data-sharing attribute clause is allowed and overrides
|
|
// the variable's predetermined data-sharing attributes.
|
|
DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.CKind != OMPC_unknown && DVar.CKind != OMPC_shared &&
|
|
DVar.RefExpr) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_shared);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
DSAStack->addDSA(VD, DE, OMPC_shared);
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPSharedClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
|
|
}
|
|
|
|
namespace {
|
|
class DSARefChecker : public StmtVisitor<DSARefChecker, bool> {
|
|
DSAStackTy *Stack;
|
|
|
|
public:
|
|
bool VisitDeclRefExpr(DeclRefExpr *E) {
|
|
if (VarDecl *VD = dyn_cast<VarDecl>(E->getDecl())) {
|
|
DSAStackTy::DSAVarData DVar = Stack->getTopDSA(VD, false);
|
|
if (DVar.CKind == OMPC_shared && !DVar.RefExpr)
|
|
return false;
|
|
if (DVar.CKind != OMPC_unknown)
|
|
return true;
|
|
DSAStackTy::DSAVarData DVarPrivate =
|
|
Stack->hasDSA(VD, isOpenMPPrivate, MatchesAlways(), false);
|
|
if (DVarPrivate.CKind != OMPC_unknown)
|
|
return true;
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
bool VisitStmt(Stmt *S) {
|
|
for (auto Child : S->children()) {
|
|
if (Child && Visit(Child))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
explicit DSARefChecker(DSAStackTy *S) : Stack(S) {}
|
|
};
|
|
} // namespace
|
|
|
|
OMPClause *Sema::ActOnOpenMPReductionClause(
|
|
ArrayRef<Expr *> VarList, SourceLocation StartLoc, SourceLocation LParenLoc,
|
|
SourceLocation ColonLoc, SourceLocation EndLoc,
|
|
CXXScopeSpec &ReductionIdScopeSpec,
|
|
const DeclarationNameInfo &ReductionId) {
|
|
// TODO: Allow scope specification search when 'declare reduction' is
|
|
// supported.
|
|
assert(ReductionIdScopeSpec.isEmpty() &&
|
|
"No support for scoped reduction identifiers yet.");
|
|
|
|
auto DN = ReductionId.getName();
|
|
auto OOK = DN.getCXXOverloadedOperator();
|
|
BinaryOperatorKind BOK = BO_Comma;
|
|
|
|
// OpenMP [2.14.3.6, reduction clause]
|
|
// C
|
|
// reduction-identifier is either an identifier or one of the following
|
|
// operators: +, -, *, &, |, ^, && and ||
|
|
// C++
|
|
// reduction-identifier is either an id-expression or one of the following
|
|
// operators: +, -, *, &, |, ^, && and ||
|
|
// FIXME: Only 'min' and 'max' identifiers are supported for now.
|
|
switch (OOK) {
|
|
case OO_Plus:
|
|
case OO_Minus:
|
|
BOK = BO_AddAssign;
|
|
break;
|
|
case OO_Star:
|
|
BOK = BO_MulAssign;
|
|
break;
|
|
case OO_Amp:
|
|
BOK = BO_AndAssign;
|
|
break;
|
|
case OO_Pipe:
|
|
BOK = BO_OrAssign;
|
|
break;
|
|
case OO_Caret:
|
|
BOK = BO_XorAssign;
|
|
break;
|
|
case OO_AmpAmp:
|
|
BOK = BO_LAnd;
|
|
break;
|
|
case OO_PipePipe:
|
|
BOK = BO_LOr;
|
|
break;
|
|
default:
|
|
if (auto II = DN.getAsIdentifierInfo()) {
|
|
if (II->isStr("max"))
|
|
BOK = BO_GT;
|
|
else if (II->isStr("min"))
|
|
BOK = BO_LT;
|
|
}
|
|
break;
|
|
}
|
|
SourceRange ReductionIdRange;
|
|
if (ReductionIdScopeSpec.isValid()) {
|
|
ReductionIdRange.setBegin(ReductionIdScopeSpec.getBeginLoc());
|
|
}
|
|
ReductionIdRange.setEnd(ReductionId.getEndLoc());
|
|
if (BOK == BO_Comma) {
|
|
// Not allowed reduction identifier is found.
|
|
Diag(ReductionId.getLocStart(), diag::err_omp_unknown_reduction_identifier)
|
|
<< ReductionIdRange;
|
|
return nullptr;
|
|
}
|
|
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto RefExpr : VarList) {
|
|
assert(RefExpr && "nullptr expr in OpenMP reduction clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
if (RefExpr->isTypeDependent() || RefExpr->isValueDependent() ||
|
|
RefExpr->isInstantiationDependent() ||
|
|
RefExpr->containsUnexpandedParameterPack()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
auto ELoc = RefExpr->getExprLoc();
|
|
auto ERange = RefExpr->getSourceRange();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable or array section, subject to the restrictions
|
|
// specified in Section 2.4 on page 42 and in each of the sections
|
|
// describing clauses and directives for which a list appears.
|
|
// OpenMP [2.14.3.3, Restrictions, p.1]
|
|
// A variable that is part of another variable (as an array or
|
|
// structure element) cannot appear in a private clause.
|
|
auto DE = dyn_cast<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << ERange;
|
|
continue;
|
|
}
|
|
auto D = DE->getDecl();
|
|
auto VD = cast<VarDecl>(D);
|
|
auto Type = VD->getType();
|
|
// OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
|
|
// A variable that appears in a private clause must not have an incomplete
|
|
// type or a reference type.
|
|
if (RequireCompleteType(ELoc, Type,
|
|
diag::err_omp_reduction_incomplete_type))
|
|
continue;
|
|
// OpenMP [2.14.3.6, reduction clause, Restrictions]
|
|
// Arrays may not appear in a reduction clause.
|
|
if (Type.getNonReferenceType()->isArrayType()) {
|
|
Diag(ELoc, diag::err_omp_reduction_type_array) << Type << ERange;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
// OpenMP [2.14.3.6, reduction clause, Restrictions]
|
|
// A list item that appears in a reduction clause must not be
|
|
// const-qualified.
|
|
if (Type.getNonReferenceType().isConstant(Context)) {
|
|
Diag(ELoc, diag::err_omp_const_variable)
|
|
<< getOpenMPClauseName(OMPC_reduction) << Type << ERange;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
// OpenMP [2.9.3.6, Restrictions, C/C++, p.4]
|
|
// If a list-item is a reference type then it must bind to the same object
|
|
// for all threads of the team.
|
|
VarDecl *VDDef = VD->getDefinition();
|
|
if (Type->isReferenceType() && VDDef) {
|
|
DSARefChecker Check(DSAStack);
|
|
if (Check.Visit(VDDef->getInit())) {
|
|
Diag(ELoc, diag::err_omp_reduction_ref_type_arg) << ERange;
|
|
Diag(VDDef->getLocation(), diag::note_defined_here) << VDDef;
|
|
continue;
|
|
}
|
|
}
|
|
// OpenMP [2.14.3.6, reduction clause, Restrictions]
|
|
// The type of a list item that appears in a reduction clause must be valid
|
|
// for the reduction-identifier. For a max or min reduction in C, the type
|
|
// of the list item must be an allowed arithmetic data type: char, int,
|
|
// float, double, or _Bool, possibly modified with long, short, signed, or
|
|
// unsigned. For a max or min reduction in C++, the type of the list item
|
|
// must be an allowed arithmetic data type: char, wchar_t, int, float,
|
|
// double, or bool, possibly modified with long, short, signed, or unsigned.
|
|
if ((BOK == BO_GT || BOK == BO_LT) &&
|
|
!(Type->isScalarType() ||
|
|
(getLangOpts().CPlusPlus && Type->isArithmeticType()))) {
|
|
Diag(ELoc, diag::err_omp_clause_not_arithmetic_type_arg)
|
|
<< getLangOpts().CPlusPlus;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
if ((BOK == BO_OrAssign || BOK == BO_AndAssign || BOK == BO_XorAssign) &&
|
|
!getLangOpts().CPlusPlus && Type->isFloatingType()) {
|
|
Diag(ELoc, diag::err_omp_clause_floating_type_arg);
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
bool Suppress = getDiagnostics().getSuppressAllDiagnostics();
|
|
getDiagnostics().setSuppressAllDiagnostics(true);
|
|
ExprResult ReductionOp =
|
|
BuildBinOp(DSAStack->getCurScope(), ReductionId.getLocStart(), BOK,
|
|
RefExpr, RefExpr);
|
|
getDiagnostics().setSuppressAllDiagnostics(Suppress);
|
|
if (ReductionOp.isInvalid()) {
|
|
Diag(ELoc, diag::err_omp_reduction_id_not_compatible) << Type
|
|
<< ReductionIdRange;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.1.1, Data-sharing Attribute Rules for Variables Referenced
|
|
// in a Construct]
|
|
// Variables with the predetermined data-sharing attributes may not be
|
|
// listed in data-sharing attributes clauses, except for the cases
|
|
// listed below. For these exceptions only, listing a predetermined
|
|
// variable in a data-sharing attribute clause is allowed and overrides
|
|
// the variable's predetermined data-sharing attributes.
|
|
// OpenMP [2.14.3.6, Restrictions, p.3]
|
|
// Any number of reduction clauses can be specified on the directive,
|
|
// but a list item can appear only once in the reduction clauses for that
|
|
// directive.
|
|
DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.CKind == OMPC_reduction) {
|
|
Diag(ELoc, diag::err_omp_once_referenced)
|
|
<< getOpenMPClauseName(OMPC_reduction);
|
|
if (DVar.RefExpr) {
|
|
Diag(DVar.RefExpr->getExprLoc(), diag::note_omp_referenced);
|
|
}
|
|
} else if (DVar.CKind != OMPC_unknown) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_reduction);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.3.6, Restrictions, p.1]
|
|
// A list item that appears in a reduction clause of a worksharing
|
|
// construct must be shared in the parallel regions to which any of the
|
|
// worksharing regions arising from the worksharing construct bind.
|
|
OpenMPDirectiveKind CurrDir = DSAStack->getCurrentDirective();
|
|
if (isOpenMPWorksharingDirective(CurrDir) &&
|
|
!isOpenMPParallelDirective(CurrDir)) {
|
|
DVar = DSAStack->getImplicitDSA(VD, true);
|
|
if (DVar.CKind != OMPC_shared) {
|
|
Diag(ELoc, diag::err_omp_required_access)
|
|
<< getOpenMPClauseName(OMPC_reduction)
|
|
<< getOpenMPClauseName(OMPC_shared);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
CXXRecordDecl *RD = getLangOpts().CPlusPlus
|
|
? Type.getNonReferenceType()->getAsCXXRecordDecl()
|
|
: nullptr;
|
|
// FIXME This code must be replaced by actual constructing/destructing of
|
|
// the reduction variable.
|
|
if (RD) {
|
|
CXXConstructorDecl *CD = LookupDefaultConstructor(RD);
|
|
PartialDiagnostic PD =
|
|
PartialDiagnostic(PartialDiagnostic::NullDiagnostic());
|
|
if (!CD ||
|
|
CheckConstructorAccess(ELoc, CD,
|
|
InitializedEntity::InitializeTemporary(Type),
|
|
CD->getAccess(), PD) == AR_inaccessible ||
|
|
CD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_reduction) << 0;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, CD);
|
|
DiagnoseUseOfDecl(CD, ELoc);
|
|
|
|
CXXDestructorDecl *DD = RD->getDestructor();
|
|
if (DD) {
|
|
if (CheckDestructorAccess(ELoc, DD, PD) == AR_inaccessible ||
|
|
DD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_reduction) << 4;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, DD);
|
|
DiagnoseUseOfDecl(DD, ELoc);
|
|
}
|
|
}
|
|
|
|
DSAStack->addDSA(VD, DE, OMPC_reduction);
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPReductionClause::Create(
|
|
Context, StartLoc, LParenLoc, ColonLoc, EndLoc, Vars,
|
|
ReductionIdScopeSpec.getWithLocInContext(Context), ReductionId);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPLinearClause(ArrayRef<Expr *> VarList, Expr *Step,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation ColonLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP linear clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.3.7, linear clause]
|
|
// A list item that appears in a linear clause is subject to the private
|
|
// clause semantics described in Section 2.14.3.3 on page 159 except as
|
|
// noted. In addition, the value of the new list item on each iteration
|
|
// of the associated loop(s) corresponds to the value of the original
|
|
// list item before entering the construct plus the logical number of
|
|
// the iteration times linear-step.
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.14.3.3, Restrictions, p.1]
|
|
// A variable that is part of another variable (as an array or
|
|
// structure element) cannot appear in a private clause.
|
|
DeclRefExpr *DE = dyn_cast<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
|
|
VarDecl *VD = cast<VarDecl>(DE->getDecl());
|
|
|
|
// OpenMP [2.14.3.7, linear clause]
|
|
// A list-item cannot appear in more than one linear clause.
|
|
// A list-item that appears in a linear clause cannot appear in any
|
|
// other data-sharing attribute clause.
|
|
DSAStackTy::DSAVarData DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.RefExpr) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa) << getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_linear);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
QualType QType = VD->getType();
|
|
if (QType->isDependentType() || QType->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
continue;
|
|
}
|
|
|
|
// A variable must not have an incomplete type or a reference type.
|
|
if (RequireCompleteType(ELoc, QType,
|
|
diag::err_omp_linear_incomplete_type)) {
|
|
continue;
|
|
}
|
|
if (QType->isReferenceType()) {
|
|
Diag(ELoc, diag::err_omp_clause_ref_type_arg)
|
|
<< getOpenMPClauseName(OMPC_linear) << QType;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// A list item must not be const-qualified.
|
|
if (QType.isConstant(Context)) {
|
|
Diag(ELoc, diag::err_omp_const_variable)
|
|
<< getOpenMPClauseName(OMPC_linear);
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// A list item must be of integral or pointer type.
|
|
QType = QType.getUnqualifiedType().getCanonicalType();
|
|
const Type *Ty = QType.getTypePtrOrNull();
|
|
if (!Ty || (!Ty->isDependentType() && !Ty->isIntegralType(Context) &&
|
|
!Ty->isPointerType())) {
|
|
Diag(ELoc, diag::err_omp_linear_expected_int_or_ptr) << QType;
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
DSAStack->addDSA(VD, DE, OMPC_linear);
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
Expr *StepExpr = Step;
|
|
if (Step && !Step->isValueDependent() && !Step->isTypeDependent() &&
|
|
!Step->isInstantiationDependent() &&
|
|
!Step->containsUnexpandedParameterPack()) {
|
|
SourceLocation StepLoc = Step->getLocStart();
|
|
ExprResult Val = PerformOpenMPImplicitIntegerConversion(StepLoc, Step);
|
|
if (Val.isInvalid())
|
|
return nullptr;
|
|
StepExpr = Val.get();
|
|
|
|
// Warn about zero linear step (it would be probably better specified as
|
|
// making corresponding variables 'const').
|
|
llvm::APSInt Result;
|
|
if (StepExpr->isIntegerConstantExpr(Result, Context) &&
|
|
!Result.isNegative() && !Result.isStrictlyPositive())
|
|
Diag(StepLoc, diag::warn_omp_linear_step_zero) << Vars[0]
|
|
<< (Vars.size() > 1);
|
|
}
|
|
|
|
return OMPLinearClause::Create(Context, StartLoc, LParenLoc, ColonLoc, EndLoc,
|
|
Vars, StepExpr);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPAlignedClause(
|
|
ArrayRef<Expr *> VarList, Expr *Alignment, SourceLocation StartLoc,
|
|
SourceLocation LParenLoc, SourceLocation ColonLoc, SourceLocation EndLoc) {
|
|
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP aligned clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
DeclRefExpr *DE = dyn_cast<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
|
|
VarDecl *VD = cast<VarDecl>(DE->getDecl());
|
|
|
|
// OpenMP [2.8.1, simd construct, Restrictions]
|
|
// The type of list items appearing in the aligned clause must be
|
|
// array, pointer, reference to array, or reference to pointer.
|
|
QualType QType = DE->getType()
|
|
.getNonReferenceType()
|
|
.getUnqualifiedType()
|
|
.getCanonicalType();
|
|
const Type *Ty = QType.getTypePtrOrNull();
|
|
if (!Ty || (!Ty->isDependentType() && !Ty->isArrayType() &&
|
|
!Ty->isPointerType())) {
|
|
Diag(ELoc, diag::err_omp_aligned_expected_array_or_ptr)
|
|
<< QType << getLangOpts().CPlusPlus << RefExpr->getSourceRange();
|
|
bool IsDecl =
|
|
VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.8.1, simd construct, Restrictions]
|
|
// A list-item cannot appear in more than one aligned clause.
|
|
if (DeclRefExpr *PrevRef = DSAStack->addUniqueAligned(VD, DE)) {
|
|
Diag(ELoc, diag::err_omp_aligned_twice) << RefExpr->getSourceRange();
|
|
Diag(PrevRef->getExprLoc(), diag::note_omp_explicit_dsa)
|
|
<< getOpenMPClauseName(OMPC_aligned);
|
|
continue;
|
|
}
|
|
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
// OpenMP [2.8.1, simd construct, Description]
|
|
// The parameter of the aligned clause, alignment, must be a constant
|
|
// positive integer expression.
|
|
// If no optional parameter is specified, implementation-defined default
|
|
// alignments for SIMD instructions on the target platforms are assumed.
|
|
if (Alignment != nullptr) {
|
|
ExprResult AlignResult =
|
|
VerifyPositiveIntegerConstantInClause(Alignment, OMPC_aligned);
|
|
if (AlignResult.isInvalid())
|
|
return nullptr;
|
|
Alignment = AlignResult.get();
|
|
}
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPAlignedClause::Create(Context, StartLoc, LParenLoc, ColonLoc,
|
|
EndLoc, Vars, Alignment);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPCopyinClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP copyin clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.14.4.1, Restrictions, p.1]
|
|
// A list item that appears in a copyin clause must be threadprivate.
|
|
DeclRefExpr *DE = dyn_cast<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
|
|
Decl *D = DE->getDecl();
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
|
|
QualType Type = VD->getType();
|
|
if (Type->isDependentType() || Type->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.4.1, Restrictions, C/C++, p.1]
|
|
// A list item that appears in a copyin clause must be threadprivate.
|
|
if (!DSAStack->isThreadPrivate(VD)) {
|
|
Diag(ELoc, diag::err_omp_required_access)
|
|
<< getOpenMPClauseName(OMPC_copyin)
|
|
<< getOpenMPDirectiveName(OMPD_threadprivate);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.4.1, Restrictions, C/C++, p.2]
|
|
// A variable of class type (or array thereof) that appears in a
|
|
// copyin clause requires an accessible, unambiguous copy assignment
|
|
// operator for the class type.
|
|
Type = Context.getBaseElementType(Type);
|
|
CXXRecordDecl *RD =
|
|
getLangOpts().CPlusPlus ? Type->getAsCXXRecordDecl() : nullptr;
|
|
// FIXME This code must be replaced by actual assignment of the
|
|
// threadprivate variable.
|
|
if (RD) {
|
|
CXXMethodDecl *MD = LookupCopyingAssignment(RD, 0, false, 0);
|
|
DeclAccessPair FoundDecl = DeclAccessPair::make(MD, MD->getAccess());
|
|
if (MD) {
|
|
if (CheckMemberAccess(ELoc, RD, FoundDecl) == AR_inaccessible ||
|
|
MD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_copyin) << 2;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, MD);
|
|
DiagnoseUseOfDecl(MD, ELoc);
|
|
}
|
|
}
|
|
|
|
DSAStack->addDSA(VD, DE, OMPC_copyin);
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPCopyinClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPCopyprivateClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
SmallVector<Expr *, 8> Vars;
|
|
for (auto &RefExpr : VarList) {
|
|
assert(RefExpr && "NULL expr in OpenMP copyprivate clause.");
|
|
if (isa<DependentScopeDeclRefExpr>(RefExpr)) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(RefExpr);
|
|
continue;
|
|
}
|
|
|
|
SourceLocation ELoc = RefExpr->getExprLoc();
|
|
// OpenMP [2.1, C/C++]
|
|
// A list item is a variable name.
|
|
// OpenMP [2.14.4.1, Restrictions, p.1]
|
|
// A list item that appears in a copyin clause must be threadprivate.
|
|
DeclRefExpr *DE = dyn_cast<DeclRefExpr>(RefExpr);
|
|
if (!DE || !isa<VarDecl>(DE->getDecl())) {
|
|
Diag(ELoc, diag::err_omp_expected_var_name) << RefExpr->getSourceRange();
|
|
continue;
|
|
}
|
|
|
|
Decl *D = DE->getDecl();
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
|
|
QualType Type = VD->getType();
|
|
if (Type->isDependentType() || Type->isInstantiationDependentType()) {
|
|
// It will be analyzed later.
|
|
Vars.push_back(DE);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.14.4.2, Restrictions, p.2]
|
|
// A list item that appears in a copyprivate clause may not appear in a
|
|
// private or firstprivate clause on the single construct.
|
|
if (!DSAStack->isThreadPrivate(VD)) {
|
|
auto DVar = DSAStack->getTopDSA(VD, false);
|
|
if (DVar.CKind != OMPC_copyprivate && DVar.CKind != OMPC_unknown &&
|
|
!(DVar.CKind == OMPC_private && !DVar.RefExpr)) {
|
|
Diag(ELoc, diag::err_omp_wrong_dsa)
|
|
<< getOpenMPClauseName(DVar.CKind)
|
|
<< getOpenMPClauseName(OMPC_copyprivate);
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
|
|
// OpenMP [2.11.4.2, Restrictions, p.1]
|
|
// All list items that appear in a copyprivate clause must be either
|
|
// threadprivate or private in the enclosing context.
|
|
if (DVar.CKind == OMPC_unknown) {
|
|
DVar = DSAStack->getImplicitDSA(VD, false);
|
|
if (DVar.CKind == OMPC_shared) {
|
|
Diag(ELoc, diag::err_omp_required_access)
|
|
<< getOpenMPClauseName(OMPC_copyprivate)
|
|
<< "threadprivate or private in the enclosing context";
|
|
ReportOriginalDSA(*this, DSAStack, VD, DVar);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
// OpenMP [2.14.4.1, Restrictions, C/C++, p.2]
|
|
// A variable of class type (or array thereof) that appears in a
|
|
// copyin clause requires an accessible, unambiguous copy assignment
|
|
// operator for the class type.
|
|
Type = Context.getBaseElementType(Type);
|
|
CXXRecordDecl *RD =
|
|
getLangOpts().CPlusPlus ? Type->getAsCXXRecordDecl() : nullptr;
|
|
// FIXME This code must be replaced by actual assignment of the
|
|
// threadprivate variable.
|
|
if (RD) {
|
|
CXXMethodDecl *MD = LookupCopyingAssignment(RD, 0, false, 0);
|
|
DeclAccessPair FoundDecl = DeclAccessPair::make(MD, MD->getAccess());
|
|
if (MD) {
|
|
if (CheckMemberAccess(ELoc, RD, FoundDecl) == AR_inaccessible ||
|
|
MD->isDeleted()) {
|
|
Diag(ELoc, diag::err_omp_required_method)
|
|
<< getOpenMPClauseName(OMPC_copyprivate) << 2;
|
|
bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
|
|
VarDecl::DeclarationOnly;
|
|
Diag(VD->getLocation(),
|
|
IsDecl ? diag::note_previous_decl : diag::note_defined_here)
|
|
<< VD;
|
|
Diag(RD->getLocation(), diag::note_previous_decl) << RD;
|
|
continue;
|
|
}
|
|
MarkFunctionReferenced(ELoc, MD);
|
|
DiagnoseUseOfDecl(MD, ELoc);
|
|
}
|
|
}
|
|
|
|
// No need to mark vars as copyprivate, they are already threadprivate or
|
|
// implicitly private.
|
|
Vars.push_back(DE);
|
|
}
|
|
|
|
if (Vars.empty())
|
|
return nullptr;
|
|
|
|
return OMPCopyprivateClause::Create(Context, StartLoc, LParenLoc, EndLoc, Vars);
|
|
}
|
|
|
|
OMPClause *Sema::ActOnOpenMPFlushClause(ArrayRef<Expr *> VarList,
|
|
SourceLocation StartLoc,
|
|
SourceLocation LParenLoc,
|
|
SourceLocation EndLoc) {
|
|
if (VarList.empty())
|
|
return nullptr;
|
|
|
|
return OMPFlushClause::Create(Context, StartLoc, LParenLoc, EndLoc, VarList);
|
|
}
|
|
|