Don't recompute something that we already have in a local variable.

llvm-svn: 127764

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

@@ -1151,9 +1151,9 @@ void SelectionDAGBuilder::visitRet(const ReturnInst &I) {
           Flags.setInReg();
 
         // Propagate extension type if any
-        if (F->paramHasAttr(0, Attribute::SExt))
+        if (ExtendKind == ISD::SIGN_EXTEND)
           Flags.setSExt();
-        else if (F->paramHasAttr(0, Attribute::ZExt))
+        else if (ExtendKind == ISD::ZERO_EXTEND)
           Flags.setZExt();
 
         for (unsigned i = 0; i < NumParts; ++i) {