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[OPENMP] Fix the address of the original variable in task reductions. 

If initialization of the task reductions requires pointer to original
variable, which is stored in the threadprivate storage, we used the
address of this pointer instead.

llvm-svn: 327136
This commit is contained in:
Alexey Bataev 2018-03-09 15:20:30 +00:00
parent 14b7e18909
commit 21dab12453
2 changed files with 6 additions and 1 deletions
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3
clang/lib/CodeGen/CGOpenMPRuntime.cpp
View File

@ -5422,6 +5422,9 @@ static llvm::Value *emitReduceInitFunction(CodeGenModule &CGM,
CGM.getOpenMPRuntime().getAddrOfArtificialThreadPrivate(
CGF, CGM.getContext().VoidPtrTy,
generateUniqueName(CGM, "reduction", RCG.getRefExpr(N)));
SharedAddr = CGF.EmitLoadOfPointer(
SharedAddr,
CGM.getContext().VoidPtrTy.castAs<PointerType>()->getTypePtr());
SharedLVal = CGF.MakeAddrLValue(SharedAddr, CGM.getContext().VoidPtrTy);
} else {
SharedLVal = CGF.MakeNaturalAlignAddrLValue(

4
clang/test/OpenMP/taskloop_reduction_codegen.cpp
View File

@ -164,7 +164,9 @@ sum = 0.0;
// CHECK: define internal void @[[RED_INIT2]](i8*)
// CHECK: call i8* @__kmpc_threadprivate_cached(
// CHECK: call i8* @__kmpc_threadprivate_cached(
// CHECK: [[ORIG_PTR_ADDR:%.+]] = call i8* @__kmpc_threadprivate_cached(
// CHECK: [[ORIG_PTR_REF:%.+]] = bitcast i8* [[ORIG_PTR_ADDR]] to i8**
// CHECK: load i8*, i8** [[ORIG_PTR_REF]],
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(
// CHECK: ret void