diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelLowering.cpp | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp index 2ddee39754c..2081809def7 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp +++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp @@ -5224,7 +5224,8 @@ static unsigned forceReg(MachineInstr &MI, MachineOperand &Base, // Implement EmitInstrWithCustomInserter for pseudo Select* instruction MI. MachineBasicBlock * SystemZTargetLowering::emitSelect(MachineInstr &MI, - MachineBasicBlock *MBB) const { + MachineBasicBlock *MBB, + unsigned LOCROpcode) const { const SystemZInstrInfo *TII = static_cast<const SystemZInstrInfo *>(Subtarget.getInstrInfo()); @@ -5235,6 +5236,15 @@ SystemZTargetLowering::emitSelect(MachineInstr &MI, unsigned CCMask = MI.getOperand(4).getImm(); DebugLoc DL = MI.getDebugLoc(); + // Use LOCROpcode if possible. + if (LOCROpcode && Subtarget.hasLoadStoreOnCond()) { + BuildMI(*MBB, MI, DL, TII->get(LOCROpcode), DestReg) + .addReg(FalseReg).addReg(TrueReg) + .addImm(CCValid).addImm(CCMask); + MI.eraseFromParent(); + return MBB; + } + MachineBasicBlock *StartMBB = MBB; MachineBasicBlock *JoinMBB = splitBlockBefore(MI, MBB); MachineBasicBlock *FalseMBB = emitBlockAfter(StartMBB); @@ -6020,12 +6030,16 @@ MachineBasicBlock *SystemZTargetLowering::EmitInstrWithCustomInserter( MachineInstr &MI, MachineBasicBlock *MBB) const { switch (MI.getOpcode()) { case SystemZ::Select32Mux: + return emitSelect(MI, MBB, + Subtarget.hasLoadStoreOnCond2()? SystemZ::LOCRMux : 0); case SystemZ::Select32: - case SystemZ::SelectF32: + return emitSelect(MI, MBB, SystemZ::LOCR); case SystemZ::Select64: + return emitSelect(MI, MBB, SystemZ::LOCGR); + case SystemZ::SelectF32: case SystemZ::SelectF64: case SystemZ::SelectF128: - return emitSelect(MI, MBB); + return emitSelect(MI, MBB, 0); case SystemZ::CondStore8Mux: return emitCondStore(MI, MBB, SystemZ::STCMux, 0, false); @@ -6035,6 +6049,10 @@ MachineBasicBlock *SystemZTargetLowering::EmitInstrWithCustomInserter( return emitCondStore(MI, MBB, SystemZ::STHMux, 0, false); case SystemZ::CondStore16MuxInv: return emitCondStore(MI, MBB, SystemZ::STHMux, 0, true); + case SystemZ::CondStore32Mux: + return emitCondStore(MI, MBB, SystemZ::STMux, SystemZ::STOCMux, false); + case SystemZ::CondStore32MuxInv: + return emitCondStore(MI, MBB, SystemZ::STMux, SystemZ::STOCMux, true); case SystemZ::CondStore8: return emitCondStore(MI, MBB, SystemZ::STC, 0, false); case SystemZ::CondStore8Inv: |
