Promote atomic type sizes up to a power of two, capped by

MaxAtomicPromoteWidth.  Fix a ton of terrible bugs with
_Atomic types and (non-intrinsic-mediated) loads and stores
thereto.

llvm-svn: 176658

1 files changed, 4 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index f5ae9cce7b7..2bddb6f79f2 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -47,6 +47,7 @@ namespace llvm {
 namespace clang {
   class TargetCodeGenInfo;
   class ASTContext;
+  class AtomicType;
   class FunctionDecl;
   class IdentifierInfo;
   class ObjCMethodDecl;
@@ -494,6 +495,9 @@ public:
 
   bool isTypeConstant(QualType QTy, bool ExcludeCtorDtor);
 
+  bool isPaddedAtomicType(QualType type);
+  bool isPaddedAtomicType(const AtomicType *type);
+
   static void DecorateInstruction(llvm::Instruction *Inst,
                                   llvm::MDNode *TBAAInfo);