[OPENMP][NVPTX]Emit service debug variable for NVPTX.
In case of the empty module, the ptxas tool may emit error message about
empty debug info sections. This patch fixes this bug.
llvm-svn: 352421
diff --git a/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp b/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
index c123304..788fa83 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
@@ -4494,6 +4494,20 @@
}
void CGOpenMPRuntimeNVPTX::clear() {
+ if (CGDebugInfo *DI = CGM.getModuleDebugInfo())
+ if (CGM.getCodeGenOpts().getDebugInfo() >=
+ codegenoptions::LimitedDebugInfo) {
+ ASTContext &C = CGM.getContext();
+ auto *VD = VarDecl::Create(
+ C, C.getTranslationUnitDecl(), SourceLocation(), SourceLocation(),
+ &C.Idents.get("_$_"), C.IntTy, /*TInfo=*/nullptr, SC_Static);
+ auto *Var = cast<llvm::GlobalVariable>(
+ CGM.CreateRuntimeVariable(CGM.IntTy, "_$_"));
+ Var->setInitializer(llvm::ConstantInt::getNullValue(CGM.IntTy));
+ Var->setLinkage(llvm::GlobalVariable::CommonLinkage);
+ CGM.addCompilerUsedGlobal(Var);
+ DI->EmitGlobalVariable(Var, VD);
+ }
if (!GlobalizedRecords.empty()) {
ASTContext &C = CGM.getContext();
llvm::SmallVector<const GlobalPtrSizeRecsTy *, 4> GlobalRecs;