15#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYFRAMELOWERING_H
16#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYFRAMELOWERING_H
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
Information about stack frame layout on the target.
WebAssemblyFrameLowering()
static unsigned getOpcAdd(const MachineFunction &MF)
static unsigned getFPReg(const MachineFunction &MF)
bool needsPrologForEH(const MachineFunction &MF) const
static unsigned getOpcGlobSet(const MachineFunction &MF)
bool hasReservedCallFrame(const MachineFunction &MF) const override
Under normal circumstances, when a frame pointer is not required, we reserve argument space for call ...
static unsigned getOpcAnd(const MachineFunction &MF)
static unsigned getSPReg(const MachineFunction &MF)
static unsigned getOpcGlobGet(const MachineFunction &MF)
DwarfFrameBase getDwarfFrameBase(const MachineFunction &MF) const override
Return the frame base information to be encoded in the DWARF subprogram debug info.
bool isSupportedStackID(TargetStackID::Value ID) const override
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...
static unsigned getOpcConst(const MachineFunction &MF)
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override
These methods insert prolog and epilog code into the function.
void writeSPToGlobal(unsigned SrcReg, MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator &InsertStore, const DebugLoc &DL) const
Write SP back to __stack_pointer global.
bool hasFP(const MachineFunction &MF) const override
Return true if the specified function should have a dedicated frame pointer register.
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override
static const size_t RedZoneSize
Size of the red zone for the user stack (leaf functions can use this much space below the stack point...
static std::optional< unsigned > getLocalForStackObject(MachineFunction &MF, int FrameIndex)
static unsigned getOpcSub(const MachineFunction &MF)
This is an optimization pass for GlobalISel generic memory operations.
This struct is a compact representation of a valid (non-zero power of two) alignment.