diff options
Diffstat (limited to 'lib/Target/Alpha/AlphaInstrInfo.cpp')
| -rw-r--r-- | lib/Target/Alpha/AlphaInstrInfo.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/Target/Alpha/AlphaInstrInfo.cpp b/lib/Target/Alpha/AlphaInstrInfo.cpp index 229f9d4..76a594f 100644 --- a/lib/Target/Alpha/AlphaInstrInfo.cpp +++ b/lib/Target/Alpha/AlphaInstrInfo.cpp @@ -289,19 +289,22 @@ MachineInstr *AlphaInstrInfo::foldMemoryOperandImpl(MachineFunction &MF, if (Ops[0] == 0) { // move -> store unsigned InReg = MI->getOperand(1).getReg(); bool isKill = MI->getOperand(1).isKill(); + bool isUndef = MI->getOperand(1).isUndef(); Opc = (Opc == Alpha::BISr) ? Alpha::STQ : ((Opc == Alpha::CPYSS) ? Alpha::STS : Alpha::STT); NewMI = BuildMI(MF, MI->getDebugLoc(), get(Opc)) - .addReg(InReg, getKillRegState(isKill)) + .addReg(InReg, getKillRegState(isKill) | getUndefRegState(isUndef)) .addFrameIndex(FrameIndex) .addReg(Alpha::F31); } else { // load -> move unsigned OutReg = MI->getOperand(0).getReg(); bool isDead = MI->getOperand(0).isDead(); + bool isUndef = MI->getOperand(0).isUndef(); Opc = (Opc == Alpha::BISr) ? Alpha::LDQ : ((Opc == Alpha::CPYSS) ? Alpha::LDS : Alpha::LDT); NewMI = BuildMI(MF, MI->getDebugLoc(), get(Opc)) - .addReg(OutReg, RegState::Define | getDeadRegState(isDead)) + .addReg(OutReg, RegState::Define | getDeadRegState(isDead) | + getUndefRegState(isUndef)) .addFrameIndex(FrameIndex) .addReg(Alpha::F31); } @@ -470,6 +473,7 @@ unsigned AlphaInstrInfo::getGlobalBaseReg(MachineFunction *MF) const { bool Ok = TII->copyRegToReg(FirstMBB, MBBI, GlobalBaseReg, Alpha::R29, &Alpha::GPRCRegClass, &Alpha::GPRCRegClass); assert(Ok && "Couldn't assign to global base register!"); + Ok = Ok; // Silence warning when assertions are turned off. RegInfo.addLiveIn(Alpha::R29); AlphaFI->setGlobalBaseReg(GlobalBaseReg); @@ -496,6 +500,7 @@ unsigned AlphaInstrInfo::getGlobalRetAddr(MachineFunction *MF) const { bool Ok = TII->copyRegToReg(FirstMBB, MBBI, GlobalRetAddr, Alpha::R26, &Alpha::GPRCRegClass, &Alpha::GPRCRegClass); assert(Ok && "Couldn't assign to global return address register!"); + Ok = Ok; // Silence warning when assertions are turned off. RegInfo.addLiveIn(Alpha::R26); AlphaFI->setGlobalRetAddr(GlobalRetAddr); |
