diff options
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 97dcc75a64..c52a9092a1 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2035,6 +2035,7 @@ bool X86InstrInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB, if (MI != MBB.end()) DL = MI->getDebugLoc(); bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit(); + bool isWin64 = TM.getSubtarget<X86Subtarget>().isTargetWin64(); unsigned SlotSize = is64Bit ? 8 : 4; MachineFunction &MF = *MBB.getParent(); @@ -2051,7 +2052,7 @@ bool X86InstrInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB, if (Reg == FPReg) // X86RegisterInfo::emitPrologue will handle spilling of frame register. continue; - if (RegClass != &X86::VR128RegClass) { + if (RegClass != &X86::VR128RegClass && !isWin64) { CalleeFrameSize += SlotSize; BuildMI(MBB, MI, DL, get(Opc)).addReg(Reg, RegState::Kill); } else { @@ -2075,6 +2076,7 @@ bool X86InstrInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineFunction &MF = *MBB.getParent(); unsigned FPReg = RI.getFrameRegister(MF); bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit(); + bool isWin64 = TM.getSubtarget<X86Subtarget>().isTargetWin64(); unsigned Opc = is64Bit ? X86::POP64r : X86::POP32r; for (unsigned i = 0, e = CSI.size(); i != e; ++i) { unsigned Reg = CSI[i].getReg(); @@ -2082,7 +2084,7 @@ bool X86InstrInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB, // X86RegisterInfo::emitEpilogue will handle restoring of frame register. continue; const TargetRegisterClass *RegClass = CSI[i].getRegClass(); - if (RegClass != &X86::VR128RegClass) { + if (RegClass != &X86::VR128RegClass && !isWin64) { BuildMI(MBB, MI, DL, get(Opc), Reg); } else { loadRegFromStackSlot(MBB, MI, Reg, CSI[i].getFrameIdx(), RegClass); |