Fix a bogus splat xform:
shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2>
!=
<undef, undef, x, undef>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42111 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 7715155..7d697f1 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -4093,8 +4093,7 @@
if (!Base.Val)
return N0;
for (unsigned i = 0; i != NumElems; ++i) {
- if (V->getOperand(i).getOpcode() != ISD::UNDEF &&
- V->getOperand(i) != Base) {
+ if (V->getOperand(i) != Base) {
AllSame = false;
break;
}