most of this is plumbing to get CompileOptions down into

CodeGenModule.  Once there, add a new NoCommon option to
it and implement -fno-common.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67735 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 3 deletions

diff --git a/include/clang/CodeGen/ModuleBuilder.h b/include/clang/CodeGen/ModuleBuilder.h
index b9f9d14540..5812da1b56 100644
--- a/include/clang/CodeGen/ModuleBuilder.h
+++ b/include/clang/CodeGen/ModuleBuilder.h
@@ -24,6 +24,7 @@ namespace llvm {
 namespace clang {
   class Diagnostic;
   class LangOptions;
+  class CompileOptions;
   
   class CodeGenerator : public ASTConsumer {
   public:
@@ -32,9 +33,8 @@ namespace clang {
   };
   
   CodeGenerator *CreateLLVMCodeGen(Diagnostic &Diags,
-                                   const LangOptions &Features,
-                                   const std::string& ModuleName,
-                                   bool GenerateDebugInfo);
+                                   const std::string &ModuleName,
+                                   const CompileOptions &CO);
 }
 
 #endif
diff --git a/include/clang/Frontend/CompileOptions.h b/include/clang/Frontend/CompileOptions.h
index 86092708c7..1af5e48ea1 100644
--- a/include/clang/Frontend/CompileOptions.h
+++ b/include/clang/Frontend/CompileOptions.h
@@ -35,6 +35,7 @@ public:
   unsigned VerifyModule      : 1; /// Control whether the module
                                   /// should be run through the LLVM Verifier.
   unsigned TimePasses        : 1; /// Set when -ftime-report is enabled.
+  unsigned NoCommon          : 1; /// Set when -fno-common or C++ is enabled.
 
   /// CPU - An optional CPU to target.
   std::string CPU;
@@ -52,6 +53,7 @@ public:
     InlineFunctions = SimplifyLibCalls = UnrollLoops = 0;
     VerifyModule = 1;
     TimePasses = 0;
+    NoCommon = 0;
   }  
 };