LLVM: llvm::CallLowering::IncomingValueHandler Struct Reference (original) (raw)

Base class for ValueHandlers used for arguments coming into the current function, or for return values received from a call. More...

#include "[llvm/CodeGen/GlobalISel/CallLowering.h](CallLowering%5F8h%5Fsource.html)"

Public Member Functions
IncomingValueHandler (MachineIRBuilder &MIRBuilder, MachineRegisterInfo &MRI)
Register buildExtensionHint (const CCValAssign &VA, Register SrcReg, LLT NarrowTy)
Insert G_ASSERT_ZEXT/G_ASSERT_SEXT or other hint instruction based on VA, returning the new register if a hint was inserted.
void assignValueToReg (Register ValVReg, Register PhysReg, const CCValAssign &VA) override
Provides a default implementation for argument handling.
Public Member Functions inherited from llvm::CallLowering::ValueHandler
ValueHandler (bool IsIncoming, MachineIRBuilder &MIRBuilder, MachineRegisterInfo &MRI)
virtual ~ValueHandler ()=default
bool isIncomingArgumentHandler () const
Returns true if the handler is dealing with incoming arguments, i.e.
virtual Register getStackAddress (uint64_t MemSize, int64_t Offset, MachinePointerInfo &MPO, ISD::ArgFlagsTy Flags)=0
Materialize a VReg containing the address of the specified stack-based object.
virtual LLT getStackValueStoreType (const DataLayout &DL, const CCValAssign &VA, ISD::ArgFlagsTy Flags) const
Return the in-memory size to write for the argument at VA.
virtual void assignValueToAddress (Register ValVReg, Register Addr, LLT MemTy, const MachinePointerInfo &MPO, const CCValAssign &VA)=0
The specified value has been assigned to a stack location.
virtual void assignValueToAddress (const ArgInfo &Arg, unsigned ValRegIndex, Register Addr, LLT MemTy, const MachinePointerInfo &MPO, const CCValAssign &VA)
An overload which takes an ArgInfo if additional information about the arg is needed.
virtual unsigned assignCustomValue (ArgInfo &Arg, ArrayRef< CCValAssign > VAs, std::function< void()> *Thunk=nullptr)
Handle custom values, which may be passed into one or more of VAs.
void copyArgumentMemory (const ArgInfo &Arg, Register DstPtr, Register SrcPtr, const MachinePointerInfo &DstPtrInfo, Align DstAlign, const MachinePointerInfo &SrcPtrInfo, Align SrcAlign, uint64_t MemSize, CCValAssign &VA) const
Do a memory copy of MemSize bytes from SrcPtr to DstPtr.
Register extendRegister (Register ValReg, const CCValAssign &VA, unsigned MaxSizeBits=0)
Extend a register to the location type given in VA, capped at extending to at most MaxSize bits.

Base class for ValueHandlers used for arguments coming into the current function, or for return values received from a call.

Definition at line 331 of file CallLowering.h.

◆ assignValueToReg()

◆ buildExtensionHint()

The documentation for this struct was generated from the following files: