[OPENMP] Codegen for threadprivate variables

For all threadprivate variables which have constructor/destructor emit call to void __kmpc_threadprivate_register(ident_t * <Current Location>, void *<Original Global Addr>, kmpc_ctor <Constructor>, kmpc_cctor NULL, kmpc_dtor <Destructor>); 
In expressions all references to such variables are replaced by calls to void *__kmpc_threadprivate_cached(ident_t *<Current Location>, kmp_int32 <Current Thread Id>, void *<Original Global Addr>, size_t <Size of Data>, void ***<Pointer to autogenerated cache – array of private copies of threadprivate variable>);
Test test/OpenMP/threadprivate_codegen.cpp checks that codegen is correct. Also it checks that codegen is correct after serialization/deserialization and one of passes verifies debug info.
Differential Revision: http://reviews.llvm.org/D4002

llvm-svn: 221663

1 files changed, 5 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 5407ba66fd8..5f03df4f532 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/ASTMutationListener.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/DeclOpenMP.h"
@@ -847,6 +848,10 @@ Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
 
     Vars.push_back(RefExpr);
     DSAStack->addDSA(VD, DE, OMPC_threadprivate);
+    VD->addAttr(OMPThreadPrivateDeclAttr::CreateImplicit(
+        Context, SourceRange(Loc, Loc)));
+    if (auto *ML = Context.getASTMutationListener())
+      ML->DeclarationMarkedOpenMPThreadPrivate(VD);
   }
   OMPThreadPrivateDecl *D = nullptr;
   if (!Vars.empty()) {