Do not emit debug information for variables while generating optimized code. The llvm optimizer and code generator are not yet ready to support optimized code debugging.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67876 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index b437f3d..7233bbf 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -19,6 +19,7 @@
#include "clang/AST/RecordLayout.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/FileManager.h"
+#include "clang/Frontend/CompileOptions.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
@@ -665,6 +666,13 @@
llvm::Value *Storage, CGBuilderTy &Builder) {
assert(!RegionStack.empty() && "Region stack mismatch, stack empty!");
+ // Do not emit variable debug information while generating optimized code.
+ // The llvm optimizer and code generator are not yet ready to support
+ // optimized code debugging.
+ const CompileOptions &CO = M->getCompileOpts();
+ if (CO.OptimizationLevel)
+ return;
+
// Get location information.
SourceManager &SM = M->getContext().getSourceManager();
unsigned Line = SM.getInstantiationLineNumber(Decl->getLocation());
@@ -697,6 +705,14 @@
/// EmitGlobalVariable - Emit information about a global variable.
void CGDebugInfo::EmitGlobalVariable(llvm::GlobalVariable *Var,
const VarDecl *Decl) {
+
+ // Do not emit variable debug information while generating optimized code.
+ // The llvm optimizer and code generator are not yet ready to support
+ // optimized code debugging.
+ const CompileOptions &CO = M->getCompileOpts();
+ if (CO.OptimizationLevel)
+ return;
+
// Create global variable debug descriptor.
llvm::DICompileUnit Unit = getOrCreateCompileUnit(Decl->getLocation());
SourceManager &SM = M->getContext().getSourceManager();
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 228020c..dbfbf02 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -159,6 +159,7 @@
CGDebugInfo *getDebugInfo() { return DebugInfo; }
ASTContext &getContext() const { return Context; }
+ const CompileOptions &getCompileOpts() const { return CompileOpts; }
const LangOptions &getLangOptions() const { return Features; }
llvm::Module &getModule() const { return TheModule; }
CodeGenTypes &getTypes() { return Types; }