diff options
Diffstat (limited to 'lib/Target/Mips/MipsInstrInfo.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsInstrInfo.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/lib/Target/Mips/MipsInstrInfo.cpp b/lib/Target/Mips/MipsInstrInfo.cpp index 92af973b0d..c2b876403d 100644 --- a/lib/Target/Mips/MipsInstrInfo.cpp +++ b/lib/Target/Mips/MipsInstrInfo.cpp @@ -291,14 +291,17 @@ foldMemoryOperandImpl(MachineFunction &MF, if (Ops[0] == 0) { // COPY -> STORE unsigned SrcReg = MI->getOperand(2).getReg(); bool isKill = MI->getOperand(2).isKill(); + bool isUndef = MI->getOperand(2).isUndef(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(Mips::SW)) - .addReg(SrcReg, getKillRegState(isKill)) + .addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef)) .addImm(0).addFrameIndex(FI); } else { // COPY -> LOAD unsigned DstReg = MI->getOperand(0).getReg(); bool isDead = MI->getOperand(0).isDead(); + bool isUndef = MI->getOperand(0).isUndef(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(Mips::LW)) - .addReg(DstReg, RegState::Define | getDeadRegState(isDead)) + .addReg(DstReg, RegState::Define | getDeadRegState(isDead) | + getUndefRegState(isUndef)) .addImm(0).addFrameIndex(FI); } } @@ -321,14 +324,17 @@ foldMemoryOperandImpl(MachineFunction &MF, if (Ops[0] == 0) { // COPY -> STORE unsigned SrcReg = MI->getOperand(1).getReg(); bool isKill = MI->getOperand(1).isKill(); + bool isUndef = MI->getOperand(2).isUndef(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(StoreOpc)) - .addReg(SrcReg, getKillRegState(isKill)) + .addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef)) .addImm(0).addFrameIndex(FI) ; } else { // COPY -> LOAD unsigned DstReg = MI->getOperand(0).getReg(); bool isDead = MI->getOperand(0).isDead(); + bool isUndef = MI->getOperand(0).isUndef(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(LoadOpc)) - .addReg(DstReg, RegState::Define | getDeadRegState(isDead)) + .addReg(DstReg, RegState::Define | getDeadRegState(isDead) | + getUndefRegState(isUndef)) .addImm(0).addFrameIndex(FI); } } |