diff options
| -rw-r--r-- | lib/Target/Mips/Mips16FrameLowering.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/Target/Mips/Mips16FrameLowering.cpp b/lib/Target/Mips/Mips16FrameLowering.cpp index e0c51ed587..5c80a6c609 100644 --- a/lib/Target/Mips/Mips16FrameLowering.cpp +++ b/lib/Target/Mips/Mips16FrameLowering.cpp @@ -39,9 +39,36 @@ void Mips16FrameLowering::emitPrologue(MachineFunction &MF) const { // No need to allocate space on the stack. if (StackSize == 0 && !MFI->adjustsStack()) return; + MachineModuleInfo &MMI = MF.getMMI(); + std::vector<MachineMove> &Moves = MMI.getFrameMoves(); + MachineLocation DstML, SrcML; + // Adjust stack. TII.makeFrame(Mips::SP, StackSize, MBB, MBBI); + // emit ".cfi_def_cfa_offset StackSize" + 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)); + + 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)); + + DstML = MachineLocation(MachineLocation::VirtualFP, -12); + SrcML = MachineLocation(Mips::S0); + Moves.push_back(MachineMove(CSLabel, DstML, SrcML)); + + DstML = MachineLocation(MachineLocation::VirtualFP, -4); + SrcML = MachineLocation(Mips::RA); + Moves.push_back(MachineMove(CSLabel, DstML, SrcML)); + if (hasFP(MF)) BuildMI(MBB, MBBI, dl, TII.get(Mips::MoveR3216), Mips::S0) .addReg(Mips::SP); |