if (StackSize == 0 && !MFI->adjustsStack()) return;
MachineModuleInfo &MMI = MF.getMMI();
- std::vector<MachineMove> &Moves = MMI.getFrameMoves();
+ const MCRegisterInfo *MRI = MMI.getContext().getRegisterInfo();
MachineLocation DstML, SrcML;
// Adjust stack.
MCSymbol *AdjustSPLabel = MMI.getContext().CreateTempSymbol();
BuildMI(MBB, MBBI, dl,
TII.get(TargetOpcode::PROLOG_LABEL)).addSym(AdjustSPLabel);
- DstML = MachineLocation(MachineLocation::VirtualFP);
- SrcML = MachineLocation(MachineLocation::VirtualFP, -StackSize);
- Moves.push_back(MachineMove(AdjustSPLabel, DstML, SrcML));
+ MMI.addFrameInst(
+ MCCFIInstruction::createDefCfaOffset(AdjustSPLabel, -StackSize));
MCSymbol *CSLabel = MMI.getContext().CreateTempSymbol();
BuildMI(MBB, MBBI, dl,
TII.get(TargetOpcode::PROLOG_LABEL)).addSym(CSLabel);
- DstML = MachineLocation(MachineLocation::VirtualFP, -8);
- SrcML = MachineLocation(Mips::S1);
- Moves.push_back(MachineMove(CSLabel, DstML, SrcML));
+ unsigned S1 = MRI->getDwarfRegNum(Mips::S1, true);
+ MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S1, -8));
- DstML = MachineLocation(MachineLocation::VirtualFP, -12);
- SrcML = MachineLocation(Mips::S0);
- Moves.push_back(MachineMove(CSLabel, DstML, SrcML));
+ unsigned S0 = MRI->getDwarfRegNum(Mips::S0, true);
+ MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, S0, -12));
- DstML = MachineLocation(MachineLocation::VirtualFP, -4);
- SrcML = MachineLocation(Mips::RA);
- Moves.push_back(MachineMove(CSLabel, DstML, SrcML));
+ unsigned RA = MRI->getDwarfRegNum(Mips::RA, true);
+ MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel, RA, -4));
if (hasFP(MF))
BuildMI(MBB, MBBI, dl, TII.get(Mips::MoveR3216), Mips::S0)
return true;
}
+// Eliminate ADJCALLSTACKDOWN, ADJCALLSTACKUP pseudo instructions
+void Mips16FrameLowering::
+eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I) const {
+ if (!hasReservedCallFrame(MF)) {
+ int64_t Amount = I->getOperand(0).getImm();
+
+ if (I->getOpcode() == Mips::ADJCALLSTACKDOWN)
+ Amount = -Amount;
+
+ const Mips16InstrInfo &TII =
+ *static_cast<const Mips16InstrInfo*>(MF.getTarget().getInstrInfo());
+
+ TII.adjustStackPtr(Mips::SP, Amount, MBB, I);
+ }
+
+ MBB.erase(I);
+}
+
bool
Mips16FrameLowering::hasReservedCallFrame(const MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();