diff options
| -rw-r--r-- | lib/Target/X86/X86FrameLowering.cpp | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp index 2e95300160..344c9a7ccd 100644 --- a/lib/Target/X86/X86FrameLowering.cpp +++ b/lib/Target/X86/X86FrameLowering.cpp @@ -160,8 +160,10 @@ void emitSPUpdate(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, Opc = isSub ? (Is64Bit ? X86::PUSH64r : X86::PUSH32r) : (Is64Bit ? X86::POP64r : X86::POP32r); - BuildMI(MBB, MBBI, DL, TII.get(Opc)) + MachineInstr *MI = BuildMI(MBB, MBBI, DL, TII.get(Opc)) .addReg(Reg, getDefRegState(!isSub) | getUndefRegState(isSub)); + if (isSub) + MI->setFlag(MachineInstr::FrameSetup); Offset -= ThisVal; continue; } @@ -171,6 +173,8 @@ void emitSPUpdate(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, BuildMI(MBB, MBBI, DL, TII.get(Opc), StackPtr) .addReg(StackPtr) .addImm(ThisVal); + if (isSub) + MI->setFlag(MachineInstr::FrameSetup); MI->getOperand(3).setIsDead(); // The EFLAGS implicit def is dead. Offset -= ThisVal; } @@ -409,7 +413,8 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF) const { TII.get(getSUBriOpcode(Is64Bit, -TailCallReturnAddrDelta)), StackPtr) .addReg(StackPtr) - .addImm(-TailCallReturnAddrDelta); + .addImm(-TailCallReturnAddrDelta) + .setMIFlag(MachineInstr::FrameSetup); MI->getOperand(3).setIsDead(); // The EFLAGS implicit def is dead. } @@ -447,7 +452,8 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF) const { // Save EBP/RBP into the appropriate stack slot. BuildMI(MBB, MBBI, DL, TII.get(Is64Bit ? X86::PUSH64r : X86::PUSH32r)) - .addReg(FramePtr, RegState::Kill); + .addReg(FramePtr, RegState::Kill) + .setMIFlag(MachineInstr::FrameSetup); if (needsFrameMoves) { // Mark the place where EBP/RBP was saved. @@ -474,7 +480,8 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF) const { // Update EBP with the new base value... BuildMI(MBB, MBBI, DL, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr), FramePtr) - .addReg(StackPtr); + .addReg(StackPtr) + .setMIFlag(MachineInstr::FrameSetup); if (needsFrameMoves) { // Mark effective beginning of when frame pointer becomes valid. @@ -919,7 +926,8 @@ bool X86FrameLowering::spillCalleeSavedRegisters(MachineBasicBlock &MBB, // X86RegisterInfo::emitPrologue will handle spilling of frame register. continue; CalleeFrameSize += SlotSize; - BuildMI(MBB, MI, DL, TII.get(Opc)).addReg(Reg, RegState::Kill); + BuildMI(MBB, MI, DL, TII.get(Opc)).addReg(Reg, RegState::Kill) + .setMIFlag(MachineInstr::FrameSetup); } X86FI->setCalleeSavedFrameSize(CalleeFrameSize); |