#include "Target/RISCV/RISCVSelectionDAGInfo.h"

Inheritance diagram for llvm::RISCVSelectionDAGInfo:

Public Member Functions
	RISCVSelectionDAGInfo ()
	~RISCVSelectionDAGInfo () override
void	verifyTargetNode (const SelectionDAG &DAG, const SDNode *N) const override
	Checks that the given target-specific node is valid. Aborts if it is not.
SDValue	EmitTargetCodeForMemset (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool isVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo) const override
	Emit target-specific code that performs a memset.
bool	hasPassthruOp (unsigned Opcode) const
bool	hasMaskOp (unsigned Opcode) const
unsigned	getMAccOpcode (unsigned MulOpcode) const
Public Member Functions inherited from llvm::SelectionDAGGenTargetInfo
	~SelectionDAGGenTargetInfo () override
const char *	getTargetNodeName (unsigned Opcode) const override
	Returns the name of the given target-specific opcode, suitable for debug printing.
bool	isTargetMemoryOpcode (unsigned Opcode) const override
	Returns true if a node with the given target-specific opcode has a memory operand.
bool	isTargetStrictFPOpcode (unsigned Opcode) const override
	Returns true if a node with the given target-specific opcode has strict floating-point semantics.
void	verifyTargetNode (const SelectionDAG &DAG, const SDNode *N) const override
	Checks that the given target-specific node is valid. Aborts if it is not.
Public Member Functions inherited from llvm::SelectionDAGTargetInfo
	SelectionDAGTargetInfo ()=default
	SelectionDAGTargetInfo (const SelectionDAGTargetInfo &)=delete
SelectionDAGTargetInfo &	operator= (const SelectionDAGTargetInfo &)=delete
virtual	~SelectionDAGTargetInfo ()
virtual bool	mayRaiseFPException (unsigned Opcode) const
	Returns true if a node with the given target-specific opcode may raise a floating-point exception.
virtual SDValue	EmitTargetCodeForMemcpy (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1, SDValue Op2, SDValue Op3, Align Alignment, bool isVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const
	Emit target-specific code that performs a memcpy.
virtual SDValue	EmitTargetCodeForMemmove (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1, SDValue Op2, SDValue Op3, Align Alignment, bool isVolatile, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const
	Emit target-specific code that performs a memmove.
virtual std::pair< SDValue, SDValue >	EmitTargetCodeForMemcmp (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1, SDValue Op2, SDValue Op3, const CallInst *CI) const
	Emit target-specific code that performs a memcmp/bcmp, in cases where that is faster than a libcall.
virtual std::pair< SDValue, SDValue >	EmitTargetCodeForMemchr (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Src, SDValue Char, SDValue Length, MachinePointerInfo SrcPtrInfo) const
	Emit target-specific code that performs a memchr, in cases where that is faster than a libcall.
virtual std::pair< SDValue, SDValue >	EmitTargetCodeForStrcpy (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dest, SDValue Src, MachinePointerInfo DestPtrInfo, MachinePointerInfo SrcPtrInfo, bool isStpcpy) const
	Emit target-specific code that performs a strcpy or stpcpy, in cases where that is faster than a libcall.
virtual std::pair< SDValue, SDValue >	EmitTargetCodeForStrcmp (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1, SDValue Op2, MachinePointerInfo Op1PtrInfo, MachinePointerInfo Op2PtrInfo) const
	Emit target-specific code that performs a strcmp, in cases where that is faster than a libcall.
virtual std::pair< SDValue, SDValue >	EmitTargetCodeForStrlen (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src, const CallInst *CI) const
virtual std::pair< SDValue, SDValue >	EmitTargetCodeForStrnlen (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src, SDValue MaxLength, MachinePointerInfo SrcPtrInfo) const
virtual SDValue	EmitTargetCodeForSetTag (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Addr, SDValue Size, MachinePointerInfo DstPtrInfo, bool ZeroData) const
virtual bool	disableGenericCombines (CodeGenOptLevel OptLevel) const

Additional Inherited Members
Protected Member Functions inherited from llvm::SelectionDAGGenTargetInfo
	SelectionDAGGenTargetInfo (const SDNodeInfo &GenNodeInfo)
Protected Attributes inherited from llvm::SelectionDAGGenTargetInfo
const SDNodeInfo &	GenNodeInfo

Detailed Description

Definition at line 28 of file RISCVSelectionDAGInfo.h.

Constructor & Destructor Documentation

◆ RISCVSelectionDAGInfo()

RISCVSelectionDAGInfo::RISCVSelectionDAGInfo ( )

Definition at line 18 of file RISCVSelectionDAGInfo.cpp.

References llvm::SelectionDAGGenTargetInfo::SelectionDAGGenTargetInfo().

◆ ~RISCVSelectionDAGInfo()

RISCVSelectionDAGInfo::~RISCVSelectionDAGInfo ( )

overridedefault

References N, and Size.

Member Function Documentation

◆ EmitTargetCodeForMemset()

SDValue RISCVSelectionDAGInfo::EmitTargetCodeForMemset	(	SelectionDAG &	DAG,
		const SDLoc &	dl,
		SDValue	Chain,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3,
		Align	Alignment,
		bool	isVolatile,
		bool	AlwaysInline,
		MachinePointerInfo	DstPtrInfo ) const

overridevirtual

Emit target-specific code that performs a memset.

This can be used by targets to provide code sequences for cases that don't fit the target's parameters for simple stores and can be more efficient than using a library call. This function can return a null SDValue if the target declines to use custom code and a different lowering strategy should be used. Note that if AlwaysInline is true the function has to return a valid SDValue.

Reimplemented from llvm::SelectionDAGTargetInfo.

Definition at line 68 of file RISCVSelectionDAGInfo.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::dyn_cast(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::SelectionDAG::getMemIntrinsicNode(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSubtarget(), llvm::SelectionDAG::getTargetConstant(), llvm::SelectionDAG::getVTList(), llvm::MachinePointerInfo::getWithOffset(), llvm::ConstantSDNode::getZExtValue(), llvm::isNullConstant(), llvm::MachineMemOperand::MONone, llvm::MachineMemOperand::MOStore, llvm::MachineMemOperand::MOVolatile, llvm::ISD::MUL, llvm::SmallVectorTemplateBase< T, bool >::push_back(), SDValue(), Size, llvm::ISD::TokenFactor, and llvm::ISD::ZERO_EXTEND.