[DebugInfo] Added support to Clang FE for generating debug info for preprocessor macros.

Added "-fdebug-macro" flag (and "-fno-debug-macro" flag) to enable (and to disable) emitting macro debug info.
Added CC1 "-debug-info-macro" flag that enables emitting macro debug info.

Differential Revision: https://reviews.llvm.org/D16135

llvm-svn: 294637

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/ModuleBuilder.cpp b/clang/lib/CodeGen/ModuleBuilder.cpp
index f925c25..89090c8 100644
--- a/clang/lib/CodeGen/ModuleBuilder.cpp
+++ b/clang/lib/CodeGen/ModuleBuilder.cpp
@@ -92,6 +92,10 @@ namespace {
       return M.get();
     }
 
+    CGDebugInfo *getCGDebugInfo() {
+      return Builder->getModuleDebugInfo();
+    }
+
     llvm::Module *ReleaseModule() {
       return M.release();
     }
@@ -299,6 +303,10 @@ llvm::Module *CodeGenerator::ReleaseModule() {
   return static_cast<CodeGeneratorImpl*>(this)->ReleaseModule();
 }
 
+CGDebugInfo *CodeGenerator::getCGDebugInfo() {
+  return static_cast<CodeGeneratorImpl*>(this)->getCGDebugInfo();
+}
+
 const Decl *CodeGenerator::GetDeclForMangledName(llvm::StringRef name) {
   return static_cast<CodeGeneratorImpl*>(this)->GetDeclForMangledName(name);
 }