diff options
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 221cb1ac361..992902d6f6e 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -10243,6 +10243,16 @@ static void computeKnownBits(SelectionDAG &DAG, SDValue Op, APInt &KnownZero, KnownOne &= Mask; return; } + if (Op.getOpcode() == ARMISD::CMOV) { + APInt KZ2(KnownZero.getBitWidth(), 0); + APInt KO2(KnownOne.getBitWidth(), 0); + computeKnownBits(DAG, Op.getOperand(1), KnownZero, KnownOne); + computeKnownBits(DAG, Op.getOperand(2), KZ2, KO2); + + KnownZero &= KZ2; + KnownOne &= KO2; + return; + } return DAG.computeKnownBits(Op, KnownZero, KnownOne); } |
