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[OPENMP] Do not create offloading entry for declare target variables 

declarations.

We should not create offloading entries for declare target var
declarations as it causes compiler crash.

llvm-svn: 340968
This commit is contained in:
Alexey Bataev 2018-08-29 20:41:37 +00:00
parent 0e9a76dbe3
commit b4dd6d24d7
2 changed files with 13 additions and 1 deletions
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10
clang/lib/CodeGen/CGOpenMPRuntime.cpp
View File

@ -3989,6 +3989,9 @@ void CGOpenMPRuntime::createOffloadEntriesAndInfoMetadata() {
CGM.getDiags().Report(DiagID);
continue;
}
// The vaiable has no definition - no need to add the entry.
if (CE->getVarSize().isZero())
continue;
break;
}
case OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryLink:
@ -8108,7 +8111,12 @@ void CGOpenMPRuntime::registerTargetGlobalVariable(const VarDecl *VD,
case OMPDeclareTargetDeclAttr::MT_To:
Flags = OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryTo;
VarName = CGM.getMangledName(VD);
VarSize = CGM.getContext().getTypeSizeInChars(VD->getType());
if (VD->hasDefinition(CGM.getContext()) != VarDecl::DeclarationOnly) {
VarSize = CGM.getContext().getTypeSizeInChars(VD->getType());
assert(!VarSize.isZero() && "Expected non-zero size of the variable");
} else {
VarSize = CharUnits::Zero();
}
Linkage = CGM.getLLVMLinkageVarDefinition(VD, /*IsConstant=*/false);
// Temp solution to prevent optimizations of the internal variables.
if (CGM.getLangOpts().OpenMPIsDevice && !VD->isExternallyVisible()) {

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

@ -143,4 +143,8 @@ int baz5() {
// CHECK-DAG: declare extern_weak signext i32 @__create()
// CHECK-NOT: define {{.*}}{{baz1|baz4|maini1}}
// CHECK-DAG: !{i32 1, !"aaa", i32 0, i32 {{[0-9]+}}}
// CHECK-DAG: !{i32 1, !"ccc", i32 0, i32 {{[0-9]+}}}
#endif // HEADER