Debug Info: support for gdwarf-2 gdwarf-3 gdwarf-4
These options will add a module flag with name "Dwarf Version".
The behavior flag is currently set to Warning, so when two values disagree,
a warning will be emitted.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184276 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index d76fee5..18c56b0 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -190,6 +190,11 @@
(Context.getLangOpts().Modules || !LinkerOptionsMetadata.empty())) {
EmitModuleLinkOptions();
}
+ if (CodeGenOpts.DwarfVersion)
+ // We actually want the latest version when there are conflicts.
+ // We can change from Warning to Latest if such mode is supported.
+ getModule().addModuleFlag(llvm::Module::Warning, "Dwarf Version",
+ CodeGenOpts.DwarfVersion);
SimplifyPersonality();