If the "CodeView" module flag is set, emit codeview instead of DWARF

Summary:
Emit both DWARF and CodeView if "CodeView" and "Dwarf Version" module
flags are set.

Reviewers: majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11756

llvm-svn: 244158

1 files changed, 8 insertions, 1 deletions

diff --git a/llvm/lib/IR/Module.cpp b/llvm/lib/IR/Module.cpp
index 043f74e12da..82b129777f7 100644
--- a/llvm/lib/IR/Module.cpp
+++ b/llvm/lib/IR/Module.cpp
@@ -458,7 +458,14 @@ void Module::dropAllReferences() {
 unsigned Module::getDwarfVersion() const {
   auto *Val = cast_or_null<ConstantAsMetadata>(getModuleFlag("Dwarf Version"));
   if (!Val)
-    return dwarf::DWARF_VERSION;
+    return 0;
+  return cast<ConstantInt>(Val->getValue())->getZExtValue();
+}
+
+unsigned Module::getCodeViewFlag() const {
+  auto *Val = cast_or_null<ConstantAsMetadata>(getModuleFlag("CodeView"));
+  if (!Val)
+    return 0;
   return cast<ConstantInt>(Val->getValue())->getZExtValue();
 }