Fix pr2566: incorrect assumption about bit_convert. It doesn't not have to output a vector value. Patch by Nicolas Capens!
llvm-svn: 53932
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 726108a..19723ba 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -4953,7 +4953,8 @@
// look though conversions that change things like v4f32 to v2f64.
if (V->getOpcode() == ISD::BIT_CONVERT) {
SDOperand ConvInput = V->getOperand(0);
- if (ConvInput.getValueType().getVectorNumElements() == NumElts)
+ if (ConvInput.getValueType().isVector() &&
+ ConvInput.getValueType().getVectorNumElements() == NumElts)
V = ConvInput.Val;
}