Nate noticed that Andrew never did this. This fixes PR600

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23110 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index dc706c1eeacdfa12a94044f3544f058aebba08bf..624933cd51441c5ae3b344dbd17998b64e669acc 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2005,7 +2005,7 @@ SDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) {
     Result = DAG.getNode(ISD::UNDEF, NVT);
     break;
   case ISD::Constant:
-    Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op);
+    Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op);
     assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?");
     break;
   case ISD::ConstantFP: