Author: abataev
Date: Mon Jan 28 12:03:02 2019
New Revision: 352421
URL: http://llvm.org/viewvc/llvm-project?rev=352421&view=rev
Log:
[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.
Modified:
cfe/trunk/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
cfe/trunk/test/OpenMP/nvptx_target_firstprivate_codegen.cpp
Modified: cfe/trunk/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp?rev=352421&r1=352420&r2=352421&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp Mon Jan 28 12:03:02 2019
@@ -4494,6 +4494,20 @@ static std::pair<unsigned, unsigned> get
}
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;
Modified: cfe/trunk/test/OpenMP/nvptx_target_firstprivate_codegen.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/nvptx_target_firstprivate_codegen.cpp?rev=352421&r1=352420&r2=352421&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/nvptx_target_firstprivate_codegen.cpp (original)
+++ cfe/trunk/test/OpenMP/nvptx_target_firstprivate_codegen.cpp Mon Jan 28
12:03:02 2019
@@ -16,6 +16,7 @@ struct TT {
// TCHECK: [[TT:%.+]] = type { i64, i8 }
// TCHECK: [[S1:%.+]] = type { double }
+// TCHECK: @{{.*}}_$_{{.*}} = common global i32 0, !dbg !{{[0-9]+}}
int foo(int n, double *ptr) {
int a = 0;
short aa = 0;
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