diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index fe665c3..a8bcfea 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -5034,7 +5034,9 @@ SDValue X86TargetLowering::LowerSETCC(SDValue Op, SelectionDAG &DAG) { // Lower ((X >>u N) & 1) != 0 to BT. // Lower ((X >>s N) & 1) != 0 to BT. // FIXME: Is i386 or later or available only on some chips? - if (Op0.getOpcode() == ISD::AND && Op1.getOpcode() == ISD::Constant && + if (Op0.getOpcode() == ISD::AND && + Op0.hasOneUse() && + Op1.getOpcode() == ISD::Constant && Op0.getOperand(1).getOpcode() == ISD::Constant && (CC == ISD::SETEQ || CC == ISD::SETNE)) { ConstantSDNode *AndRHS = cast<ConstantSDNode>(Op0.getOperand(1)); |