NewMIs.push_back(MIB);
}
-bool X86InstrInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- const std::vector<CalleeSavedInfo> &CSI,
- const TargetRegisterInfo *TRI) const {
- if (CSI.empty())
- return false;
-
- DebugLoc DL = MBB.findDebugLoc(MI);
-
- bool is64Bit = TM.getSubtarget<X86Subtarget>().is64Bit();
- bool isWin64 = TM.getSubtarget<X86Subtarget>().isTargetWin64();
- unsigned SlotSize = is64Bit ? 8 : 4;
-
- MachineFunction &MF = *MBB.getParent();
- unsigned FPReg = RI.getFrameRegister(MF);
- X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
- unsigned CalleeFrameSize = 0;
-
- unsigned Opc = is64Bit ? X86::PUSH64r : X86::PUSH32r;
- for (unsigned i = CSI.size(); i != 0; --i) {
- unsigned Reg = CSI[i-1].getReg();
- // Add the callee-saved register as live-in. It's killed at the spill.
- MBB.addLiveIn(Reg);
- if (Reg == FPReg)
- // X86RegisterInfo::emitPrologue will handle spilling of frame register.
- continue;
- if (!X86::VR128RegClass.contains(Reg) && !isWin64) {
- CalleeFrameSize += SlotSize;
- BuildMI(MBB, MI, DL, get(Opc)).addReg(Reg, RegState::Kill);
- } else {
- const TargetRegisterClass *RC = TRI->getMinimalPhysRegClass(Reg);
- storeRegToStackSlot(MBB, MI, Reg, true, CSI[i-1].getFrameIdx(),
- RC, &RI);
- }
- }
-
- X86FI->setCalleeSavedFrameSize(CalleeFrameSize);
- return true;
-}
-
-bool X86InstrInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- const std::vector<CalleeSavedInfo> &CSI,
- const TargetRegisterInfo *TRI) const {
- if (CSI.empty())
- return false;
-
- DebugLoc DL = MBB.findDebugLoc(MI);
-
- 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();
- if (Reg == FPReg)
- // X86RegisterInfo::emitEpilogue will handle restoring of frame register.
- continue;
- if (!X86::VR128RegClass.contains(Reg) && !isWin64) {
- BuildMI(MBB, MI, DL, get(Opc), Reg);
- } else {
- const TargetRegisterClass *RC = TRI->getMinimalPhysRegClass(Reg);
- loadRegFromStackSlot(MBB, MI, Reg, CSI[i].getFrameIdx(),
- RC, &RI);
- }
- }
- return true;
-}
-
MachineInstr*
X86InstrInfo::emitFrameIndexDebugValue(MachineFunction &MF,
int FrameIx, uint64_t Offset,