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9 #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H
10 #define LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H
24 class HexagonInstrInfo;
25 class HexagonRegisterInfo;
26 class MachineFunction;
28 class MachineRegisterInfo;
29 class TargetRegisterClass;
93 { Hexagon::R17, -4 }, { Hexagon::R16, -8 }, { Hexagon::D8, -8 },
94 { Hexagon::R19, -12 }, { Hexagon::R18, -16 }, { Hexagon::D9, -16 },
95 { Hexagon::R21, -20 }, { Hexagon::R20, -24 }, { Hexagon::D10, -24 },
96 { Hexagon::R23, -28 }, { Hexagon::R22, -32 }, { Hexagon::D11, -32 },
97 { Hexagon::R25, -36 }, { Hexagon::R24, -40 }, { Hexagon::D12, -40 },
98 { Hexagon::R27, -44 }, { Hexagon::R26, -48 }, { Hexagon::D13, -48 }
114 using CSIVect = std::vector<CalleeSavedInfo>;
172 void addCalleeSaveRegistersAsImpOperand(
MachineInstr *
MI,
const CSIVect &CSI,
173 bool IsDef,
bool IsKill)
const;
174 bool shouldInlineCSR(
const MachineFunction &MF,
const CSIVect &CSI)
const;
175 bool useSpillFunction(
const MachineFunction &MF,
const CSIVect &CSI)
const;
176 bool useRestoreFunction(
const MachineFunction &MF,
const CSIVect &CSI)
const;
182 #endif // LLVM_LIB_TARGET_HEXAGON_HEXAGONFRAMELOWERING_H
This is an optimization pass for GlobalISel generic memory operations.
Information about stack frame layout on the target.
MachineRegisterInfo - Keep track of information for virtual and physical registers,...
StackOffset getFrameIndexReference(const MachineFunction &MF, int FI, Register &FrameReg) const override
getFrameIndexReference - This method should return the base register and offset used to reference a f...
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
bool assignCalleeSavedSpillSlots(MachineFunction &MF, const TargetRegisterInfo *TRI, std::vector< CalleeSavedInfo > &CSI) const override
unsigned const TargetRegisterInfo * TRI
void insertCFIInstructions(MachineFunction &MF) const
MutableArrayRef - Represent a mutable reference to an array (0 or more elements consecutively in memo...
bool enableCalleeSaveSkip(const MachineFunction &MF) const override
Returns true if the target can safely skip saving callee-saved registers for noreturn nounwind functi...
bool hasFP(const MachineFunction &MF) const override
hasFP - Return true if the specified function should have a dedicated frame pointer register.
const HexagonInstrInfo * TII
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
bool needsAligna(const MachineFunction &MF) const
bool canSimplifyCallFramePseudos(const MachineFunction &MF) const override
canSimplifyCallFramePseudos - When possible, it's best to simplify the call frame pseudo ops before d...
This struct is a compact representation of a valid (non-zero power of two) alignment.
bool targetHandlesStackFrameRounding() const override
targetHandlesStackFrameRounding - Returns true if the target is responsible for rounding up the stack...
Representation of each machine instruction.
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
StackOffset holds a fixed and a scalable offset in bytes.
unsigned const MachineRegisterInfo * MRI
Wrapper class representing virtual and physical registers.
const SpillSlot * getCalleeSavedSpillSlots(unsigned &NumEntries) const override
getCalleeSavedSpillSlots - This method returns a pointer to an array of pairs, that contains an entry...
std::map< RegisterRef, RangeList > RegToRangeMap
const MachineInstr * getAlignaInstr(const MachineFunction &MF) const
MachineBasicBlock::iterator eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const override
This method is called during prolog/epilog code insertion to eliminate call frame setup and destroy p...
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, ArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
spillCalleeSavedRegisters - Issues instruction(s) to spill all callee saved registers and returns tru...
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
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:
bool hasReservedCallFrame(const MachineFunction &MF) const override
hasReservedCallFrame - Under normal circumstances, when a frame pointer is not required,...
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, MutableArrayRef< CalleeSavedInfo > CSI, const TargetRegisterInfo *TRI) const override
restoreCalleeSavedRegisters - Issues instruction(s) to restore all callee saved registers and returns...
void processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *RS=nullptr) const override
processFunctionBeforeFrameFinalized - This method is called immediately before the specified function...