Don't build illegal ops in DAGCombiner::SimplifyBinOpWithSameOpcodeHands().
Blackfin supports and/or/xor on i32 but not on i16. Teach
DAGCombiner::SimplifyBinOpWithSameOpcodeHands to not produce illegal nodes
after legalize ops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78497 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 3d0f337..7dec304 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -1679,7 +1679,9 @@
N0.getOpcode() == ISD::SIGN_EXTEND ||
(N0.getOpcode() == ISD::TRUNCATE &&
!TLI.isTruncateFree(N0.getOperand(0).getValueType(), VT))) &&
- N0.getOperand(0).getValueType() == N1.getOperand(0).getValueType()) {
+ N0.getOperand(0).getValueType() == N1.getOperand(0).getValueType() &&
+ (!LegalOperations ||
+ TLI.isOperationLegal(N->getOpcode(), N0.getOperand(0).getValueType()))) {
SDValue ORNode = DAG.getNode(N->getOpcode(), N0.getDebugLoc(),
N0.getOperand(0).getValueType(),
N0.getOperand(0), N1.getOperand(0));