Merge PCHWriterDecl.cpp's isRequiredDecl and CodeGenModule::MayDeferGeneration into a new function,

DeclIsRequiredFunctionOrFileScopedVar.

This is essentially a CodeGen predicate that is also needed by the PCH mechanism to determine whether a decl
needs to be deserialized during PCH loading for codegen purposes.
Since this logic is shared by CodeGen and the PCH mechanism, move it to the ASTContext,
thus CodeGenModule's GetLinkageForFunction/GetLinkageForVariable and the GVALinkage enum is moved out of CodeGen.

This fixes current (and avoids future) codegen-from-PCH bugs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109784 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 9 deletions

diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 5b7503861d..2cb345a8a2 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -504,15 +504,6 @@ public:
 
   void EmitVTable(CXXRecordDecl *Class, bool DefinitionRequired);
 
-  enum GVALinkage {
-    GVA_Internal,
-    GVA_C99Inline,
-    GVA_CXXInline,
-    GVA_StrongExternal,
-    GVA_TemplateInstantiation,
-    GVA_ExplicitTemplateInstantiation
-  };
-
   llvm::GlobalVariable::LinkageTypes
   getFunctionLinkage(const FunctionDecl *FD);