fix a crash on CodeGen/X86/vector-rem.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46422 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 2c2f5e9..5d1f70f 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -1306,10 +1306,12 @@
return DAG.getNode(ISD::SREM, VT, N0, N1);
// If we know the sign bits of both operands are zero, strength reduce to a
// urem instead. Handles (X & 0x0FFFFFFF) %s 16 -> X&15
- uint64_t SignBit = MVT::getIntVTSignBit(VT);
- if (DAG.MaskedValueIsZero(N1, SignBit) &&
- DAG.MaskedValueIsZero(N0, SignBit))
- return DAG.getNode(ISD::UREM, VT, N0, N1);
+ if (!MVT::isVector(VT)) {
+ uint64_t SignBit = MVT::getIntVTSignBit(VT);
+ if (DAG.MaskedValueIsZero(N1, SignBit) &&
+ DAG.MaskedValueIsZero(N0, SignBit))
+ return DAG.getNode(ISD::UREM, VT, N0, N1);
+ }
// If X/C can be simplified by the division-by-constant logic, lower
// X%C to the equivalent of X-X/C*C.