diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 51f8d562fe1..3c99675a473 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -10398,6 +10398,12 @@ SDValue ARMTargetLowering::PerformCMOVToBFICombine(SDNode *CMOV, SelectionDAG &D auto CC = CCNode->getAPIntValue().getLimitedValue(); SDValue CmpZ = CMOV->getOperand(4); + // The compare must be against zero. + SDValue Zero = CmpZ->getOperand(1); + if (!isa<ConstantSDNode>(Zero.getNode()) || + !cast<ConstantSDNode>(Zero.getNode())->isNullValue()) + return SDValue(); + assert(CmpZ->getOpcode() == ARMISD::CMPZ); SDValue And = CmpZ->getOperand(0); if (And->getOpcode() != ISD::AND) |
