diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.cpp | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp index 234c24b6afc..5cd2fbe35e6 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.cpp +++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp @@ -155,34 +155,6 @@ X86RegisterInfo::getCrossCopyRegClass(const TargetRegisterClass *RC) const { return NULL; } -void X86RegisterInfo::reMaterialize(MachineBasicBlock &MBB, - MachineBasicBlock::iterator I, - unsigned DestReg, - const MachineInstr *Orig) const { - // MOV32r0 etc. are implemented with xor which clobbers condition code. - // Re-materialize them as movri instructions to avoid side effects. - switch (Orig->getOpcode()) { - case X86::MOV8r0: - BuildMI(MBB, I, TII.get(X86::MOV8ri), DestReg).addImm(0); - break; - case X86::MOV16r0: - BuildMI(MBB, I, TII.get(X86::MOV16ri), DestReg).addImm(0); - break; - case X86::MOV32r0: - BuildMI(MBB, I, TII.get(X86::MOV32ri), DestReg).addImm(0); - break; - case X86::MOV64r0: - BuildMI(MBB, I, TII.get(X86::MOV64ri32), DestReg).addImm(0); - break; - default: { - MachineInstr *MI = Orig->clone(); - MI->getOperand(0).setReg(DestReg); - MBB.insert(I, MI); - break; - } - } -} - const unsigned * X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { static const unsigned CalleeSavedRegs32Bit[] = { |

