diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 65bc4b0b81..704d0787a7 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -7713,26 +7713,25 @@ SDValue X86TargetLowering::LowerMEMBARRIER(SDValue Op, SelectionDAG &DAG) const{ } unsigned isDev = cast<ConstantSDNode>(Op.getOperand(5))->getZExtValue(); - if(!isDev) + if (!isDev) return DAG.getNode(X86ISD::MEMBARRIER, dl, MVT::Other, Op.getOperand(0)); - else { - unsigned Op1 = cast<ConstantSDNode>(Op.getOperand(1))->getZExtValue(); - unsigned Op2 = cast<ConstantSDNode>(Op.getOperand(2))->getZExtValue(); - unsigned Op3 = cast<ConstantSDNode>(Op.getOperand(3))->getZExtValue(); - unsigned Op4 = cast<ConstantSDNode>(Op.getOperand(4))->getZExtValue(); - - // def : Pat<(membarrier (i8 0), (i8 0), (i8 0), (i8 1), (i8 1)), (SFENCE)>; - if (!Op1 && !Op2 && !Op3 && Op4) - return DAG.getNode(X86ISD::SFENCE, dl, MVT::Other, Op.getOperand(0)); - - // def : Pat<(membarrier (i8 1), (i8 0), (i8 0), (i8 0), (i8 1)), (LFENCE)>; - if (Op1 && !Op2 && !Op3 && !Op4) - return DAG.getNode(X86ISD::LFENCE, dl, MVT::Other, Op.getOperand(0)); - - // def : Pat<(membarrier (i8 imm), (i8 imm), (i8 imm), (i8 imm), (i8 1)), - // (MFENCE)>; - return DAG.getNode(X86ISD::MFENCE, dl, MVT::Other, Op.getOperand(0)); - } + + unsigned Op1 = cast<ConstantSDNode>(Op.getOperand(1))->getZExtValue(); + unsigned Op2 = cast<ConstantSDNode>(Op.getOperand(2))->getZExtValue(); + unsigned Op3 = cast<ConstantSDNode>(Op.getOperand(3))->getZExtValue(); + unsigned Op4 = cast<ConstantSDNode>(Op.getOperand(4))->getZExtValue(); + + // def : Pat<(membarrier (i8 0), (i8 0), (i8 0), (i8 1), (i8 1)), (SFENCE)>; + if (!Op1 && !Op2 && !Op3 && Op4) + return DAG.getNode(X86ISD::SFENCE, dl, MVT::Other, Op.getOperand(0)); + + // def : Pat<(membarrier (i8 1), (i8 0), (i8 0), (i8 0), (i8 1)), (LFENCE)>; + if (Op1 && !Op2 && !Op3 && !Op4) + return DAG.getNode(X86ISD::LFENCE, dl, MVT::Other, Op.getOperand(0)); + + // def : Pat<(membarrier (i8 imm), (i8 imm), (i8 imm), (i8 imm), (i8 1)), + // (MFENCE)>; + return DAG.getNode(X86ISD::MFENCE, dl, MVT::Other, Op.getOperand(0)); } SDValue X86TargetLowering::LowerCMP_SWAP(SDValue Op, SelectionDAG &DAG) const { |