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-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeDAG.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 9480ed6f09..db3b33abc5 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2011,7 +2011,10 @@ SDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) {
Result = DAG.getNode(ISD::UNDEF, NVT);
break;
case ISD::Constant:
- Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op);
+ if (VT != MVT::i1)
+ Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op);
+ else
+ Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op);
assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?");
break;
case ISD::ConstantFP: