diff options
Diffstat (limited to 'lib/Target/Sparc')
| -rw-r--r-- | lib/Target/Sparc/SparcRegisterInfo.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp index bd2da73..1eee070 100644 --- a/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/lib/Target/Sparc/SparcRegisterInfo.cpp @@ -77,15 +77,16 @@ MachineInstr *SparcRegisterInfo::foldMemoryOperand(MachineInstr* MI, unsigned OpNum, int FI) const { bool isFloat = false; + MachineInstr *NewMI = NULL; switch (MI->getOpcode()) { case SP::ORrr: if (MI->getOperand(1).isRegister() && MI->getOperand(1).getReg() == SP::G0&& MI->getOperand(0).isRegister() && MI->getOperand(2).isRegister()) { if (OpNum == 0) // COPY -> STORE - return BuildMI(TII, SP::STri, 3).addFrameIndex(FI).addImm(0) + NewMI = BuildMI(TII, SP::STri, 3).addFrameIndex(FI).addImm(0) .addReg(MI->getOperand(2).getReg()); else // COPY -> LOAD - return BuildMI(TII, SP::LDri, 2, MI->getOperand(0).getReg()) + NewMI = BuildMI(TII, SP::LDri, 2, MI->getOperand(0).getReg()) .addFrameIndex(FI).addImm(0); } break; @@ -94,14 +95,17 @@ MachineInstr *SparcRegisterInfo::foldMemoryOperand(MachineInstr* MI, // FALLTHROUGH case SP::FMOVD: if (OpNum == 0) // COPY -> STORE - return BuildMI(TII, isFloat ? SP::STFri : SP::STDFri, 3) + NewMI = BuildMI(TII, isFloat ? SP::STFri : SP::STDFri, 3) .addFrameIndex(FI).addImm(0).addReg(MI->getOperand(1).getReg()); else // COPY -> LOAD - return BuildMI(TII, isFloat ? SP::LDFri : SP::LDDFri, 2, + NewMI = BuildMI(TII, isFloat ? SP::LDFri : SP::LDDFri, 2, MI->getOperand(0).getReg()).addFrameIndex(FI).addImm(0); break; } - return 0; + + if (NewMI) + NewMI->copyKillDeadInfo(MI); + return NewMI; } const unsigned* SparcRegisterInfo::getCalleeSaveRegs() const { |