Move where block-related variables are initialized so that block

types don't get generated when blocks aren't used.

llvm-svn: 67898

clang/lib/CodeGen/CGBlocks.cpp

@@ -625,6 +625,16 @@ CodeGenFunction::GenerateBlockFunction(const BlockExpr *BExpr,
       LocalDeclMap[VD] = i->second;
   }
 
+  // FIXME: We need to rearrange the code for copy/dispose so we have this
+  // sooner, so we can calculate offsets correctly.
+  if (!BlockHasCopyDispose)
+    BlockOffset = CGM.getTargetData()
+      .getTypeStoreSizeInBits(CGM.getGenericBlockLiteralType()) / 8;
+  else
+    BlockOffset = CGM.getTargetData()
+      .getTypeStoreSizeInBits(CGM.getGenericExtendedBlockLiteralType()) / 8;
+  BlockAlign = getContext().getTypeAlign(getContext().VoidPtrTy) / 8;
+
   const FunctionProtoType *FTy =
     cast<FunctionProtoType>(BExpr->getFunctionType());