Add CodeGenFunction::ReturnTypeUsesSret
 - Hook so NeXT runtime doesn't depend on ABI.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56034 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 8900432..8b7400a 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -117,6 +117,10 @@
 
 /***/
 
+bool CodeGenFunction::ReturnTypeUsesSret(QualType RetTy) {
+  return hasAggregateLLVMType(RetTy);
+}
+
 void CodeGenFunction::EmitFunctionProlog(llvm::Function *Fn,
                                          QualType RetTy, 
                                          const FunctionArgList &Args) {