From 94a4f0cb5f8a44e1228f1fd06c8d970125084c71 Mon Sep 17 00:00:00 2001 From: Alexey Bataev Date: Thu, 3 Mar 2016 05:21:39 +0000 Subject: [OPENMP 4.0] Initial support for 'omp declare reduction' construct. Add parsing, sema analysis and serialization/deserialization for 'declare reduction' construct. User-defined reductions are defined as #pragma omp declare reduction( reduction-identifier : typename-list : combiner ) [initializer ( initializer-expr )] These custom reductions may be used in 'reduction' clauses of OpenMP constructs. The combiner specifies how partial results can be combined into a single value. The combiner can use the special variable identifiers omp_in and omp_out that are of the type of the variables being reduced with this reduction-identifier. Each of them will denote one of the values to be combined before executing the combiner. It is assumed that the special omp_out identifier will refer to the storage that holds the resulting combined value after executing the combiner. As the initializer-expr value of a user-defined reduction is not known a priori the initializer-clause can be used to specify one. Then the contents of the initializer-clause will be used as the initializer for private copies of reduction list items where the omp_priv identifier will refer to the storage to be initialized. The special identifier omp_orig can also appear in the initializer-clause and it will refer to the storage of the original variable to be reduced. Differential Revision: http://reviews.llvm.org/D11182 llvm-svn: 262582 --- clang/lib/Serialization/ASTReaderDecl.cpp | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'clang/lib/Serialization/ASTReaderDecl.cpp') diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp index 213f2aa0ecf..2389d671d42 100644 --- a/clang/lib/Serialization/ASTReaderDecl.cpp +++ b/clang/lib/Serialization/ASTReaderDecl.cpp @@ -356,6 +356,7 @@ namespace clang { void VisitObjCPropertyDecl(ObjCPropertyDecl *D); void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D); void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D); + void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D); void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D); /// We've merged the definition \p MergedDef into the existing definition @@ -2394,6 +2395,15 @@ void ASTDeclReader::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) { D->setVars(Vars); } +void ASTDeclReader::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) { + VisitNamedDecl(D); + D->setLocation(Reader.ReadSourceLocation(F, Record, Idx)); + D->setCombiner(Reader.ReadExpr(F)); + D->setInitializer(Reader.ReadExpr(F)); + D->PrevDeclInScope = Reader.ReadDeclID(F, Record, Idx); + D->setType(Reader.readType(F, Record, Idx)); +} + void ASTDeclReader::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) { VisitVarDecl(D); } @@ -2449,7 +2459,8 @@ static bool isConsumerInterestedIn(Decl *D, bool HasBody) { isa(D) || isa(D) || isa(D) || - isa(D)) + isa(D) || + isa(D)) return true; if (VarDecl *Var = dyn_cast(D)) return Var->isFileVarDecl() && @@ -3363,6 +3374,9 @@ Decl *ASTReader::ReadDeclRecord(DeclID ID) { case DECL_OMP_THREADPRIVATE: D = OMPThreadPrivateDecl::CreateDeserialized(Context, ID, Record[Idx++]); break; + case DECL_OMP_DECLARE_REDUCTION: + D = OMPDeclareReductionDecl::CreateDeserialized(Context, ID); + break; case DECL_OMP_CAPTUREDEXPR: D = OMPCapturedExprDecl::CreateDeserialized(Context, ID); break; -- cgit v1.2.3