10 #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H
11 #define LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H
18 class HexagonInstrInfo;
19 class HexagonRegisterInfo;
60 { Hexagon::R17, -4 }, { Hexagon::R16, -8 }, { Hexagon::D8, -8 },
61 { Hexagon::R19, -12 }, { Hexagon::R18, -16 }, { Hexagon::D9, -16 },
62 { Hexagon::R21, -20 }, { Hexagon::R20, -24 }, { Hexagon::D10, -24 },
63 { Hexagon::R23, -28 }, { Hexagon::R22, -32 }, { Hexagon::D11, -32 },
64 { Hexagon::R25, -36 }, { Hexagon::R24, -40 }, { Hexagon::D12, -40 },
65 { Hexagon::R27, -44 }, { Hexagon::R26, -48 }, { Hexagon::D13, -48 }
79 typedef std::vector<CalleeSavedInfo> CSIVect;
82 unsigned SP,
unsigned CF)
const;
const SpillSlot * getCalleeSavedSpillSlots(unsigned &NumEntries) const override
getCalleeSavedSpillSlots - This method returns a pointer to an array of pairs, that contains an entry...
int getFrameIndexOffset(const MachineFunction &MF, int FI) const override
getFrameIndexOffset - Returns the displacement from the frame register to the stack frame of the spec...
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
MachineInstr * getAlignaInstr(MachineFunction &MF) const
const HexagonInstrInfo * TII
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const override
restoreCalleeSavedRegisters - Issues instruction(s) to restore all callee saved registers and returns...
bool needsAligna(const MachineFunction &MF) const
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS) const override
This method determines which of the registers reported by TargetRegisterInfo::getCalleeSavedRegs() sh...
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
Perform most of the PEI work here:
LLVM_CONSTEXPR size_t array_lengthof(T(&)[N])
Find the length of an array.
bundle_iterator< MachineInstr, instr_iterator > iterator
void eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const override
eliminateCallFramePseudoInstr - This method is called during prolog/epilog code insertion to eliminat...
bundle_iterator - MachineBasicBlock iterator that automatically skips over MIs that are inside bundle...
void processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *RS=nullptr) const override
processFunctionBeforeFrameFinalized - This method is called immediately before the specified function...
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
Information about stack frame layout on the target.
bool assignCalleeSavedSpillSlots(MachineFunction &MF, const TargetRegisterInfo *TRI, std::vector< CalleeSavedInfo > &CSI) const override
assignCalleeSavedSpillSlots - Allows target to override spill slot assignment logic.
Representation of each machine instruction.
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const override
spillCalleeSavedRegisters - Issues instruction(s) to spill all callee saved registers and returns tru...
bool targetHandlesStackFrameRounding() const override
targetHandlesStackFrameRounding - Returns true if the target is responsible for rounding up the stack...
bool hasFP(const MachineFunction &MF) const override
hasFP - Return true if the specified function should have a dedicated frame pointer register...