llvm::AArch64SelectionDAGInfo Class Reference

#include "Target/AArch64/AArch64SelectionDAGInfo.h"

Inheritance diagram for llvm::AArch64SelectionDAGInfo:

Public Member Functions
	AArch64SelectionDAGInfo ()
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	EmitMOPS (unsigned Opcode, SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue SrcOrValue, SDValue Size, Align Alignment, bool isVolatile, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const
SDValue	EmitTargetCodeForMemcpy (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool isVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const override
	Emit target-specific code that performs a memcpy.
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.
SDValue	EmitTargetCodeForMemmove (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool isVolatile, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const override
	Emit target-specific code that performs a memmove.
SDValue	EmitTargetCodeForSetTag (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1, SDValue Op2, MachinePointerInfo DstPtrInfo, bool ZeroData) const override
SDValue	EmitStreamingCompatibleMemLibCall (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Src, SDValue Size, RTLIB::Libcall LC) 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 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 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 25 of file AArch64SelectionDAGInfo.h.

Constructor & Destructor Documentation

AArch64SelectionDAGInfo()

AArch64SelectionDAGInfo::AArch64SelectionDAGInfo

(

)

Definition at line 30 of file AArch64SelectionDAGInfo.cpp.

References llvm::SelectionDAGGenTargetInfo::SelectionDAGGenTargetInfo().

Member Function Documentation

EmitMOPS()

SDValue AArch64SelectionDAGInfo::EmitMOPS	(	unsigned	Opcode,
		SelectionDAG &	DAG,
		const SDLoc &	DL,
		SDValue	Chain,
		SDValue	Dst,
		SDValue	SrcOrValue,
		SDValue	Size,
		Align	Alignment,
		bool	isVolatile,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo ) const

Definition at line 133 of file AArch64SelectionDAGInfo.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, llvm::ISD::ANY_EXTEND, llvm::CallingConv::C, DL, llvm::dyn_cast(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MONone, llvm::MachineMemOperand::MOStore, llvm::MachineMemOperand::MOVolatile, SDValue(), llvm::SelectionDAG::setNodeMemRefs(), and Size.

Referenced by EmitTargetCodeForMemcpy(), EmitTargetCodeForMemmove(), and EmitTargetCodeForMemset().

EmitStreamingCompatibleMemLibCall()

SDValue AArch64SelectionDAGInfo::EmitStreamingCompatibleMemLibCall	(	SelectionDAG &	DAG,
		const SDLoc &	DL,
		SDValue	Chain,
		SDValue	Dst,
		SDValue	Src,
		SDValue	Size,
		RTLIB::Libcall	LC ) const

Definition at line 179 of file AArch64SelectionDAGInfo.cpp.

References DL, llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getExternalSymbol(), llvm::Type::getInt32Ty(), llvm::DataLayout::getIntPtrType(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getSubtarget(), llvm::AArch64Subtarget::getTargetLowering(), llvm::PointerType::getUnqual(), llvm::SelectionDAG::getZExtOrTrunc(), SDValue(), llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::TargetLowering::CallLoweringInfo::setDebugLoc(), llvm::TargetLowering::CallLoweringInfo::setLibCallee(), and Size.

Referenced by EmitTargetCodeForMemcpy(), EmitTargetCodeForMemmove(), and EmitTargetCodeForMemset().

EmitTargetCodeForMemcpy()

SDValue AArch64SelectionDAGInfo::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

overridevirtual

Emit target-specific code that performs a memcpy.

This can be used by targets to provide code sequences for cases that don't fit the target's parameters for simple loads/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.

If AlwaysInline is true, the size is constant and the target should not emit any calls and is strongly encouraged to attempt to emit inline code even if it is beyond the usual threshold because this intrinsic is being expanded in a place where calls are not feasible (e.g. within the prologue for another call). If the target chooses to decline an AlwaysInline request here, legalize will resort to using simple loads and stores.

Reimplemented from llvm::SelectionDAGTargetInfo.

Definition at line 221 of file AArch64SelectionDAGInfo.cpp.

References DL, EmitMOPS(), EmitStreamingCompatibleMemLibCall(), llvm::MachineFunction::getInfo(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getSubtarget(), LowerToSMERoutines, SDValue(), and Size.

EmitTargetCodeForMemmove()

SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemmove ( SelectionDAG & DAG, const SDLoc & dl, SDValue Chain, SDValue Op1, SDValue Op2, SDValue Op3, Align Alignment, bool isVolatile, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo ) const

overridevirtual

Emit target-specific code that performs a memmove.

This can be used by targets to provide code sequences for cases that don't fit the target's parameters for simple loads/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.

Reimplemented from llvm::SelectionDAGTargetInfo.

Definition at line 260 of file AArch64SelectionDAGInfo.cpp.

References EmitMOPS(), EmitStreamingCompatibleMemLibCall(), llvm::MachineFunction::getInfo(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getSubtarget(), LowerToSMERoutines, SDValue(), and Size.

EmitTargetCodeForMemset()

SDValue AArch64SelectionDAGInfo::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 240 of file AArch64SelectionDAGInfo.cpp.

References EmitMOPS(), EmitStreamingCompatibleMemLibCall(), llvm::MachineFunction::getInfo(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getSubtarget(), LowerToSMERoutines, SDValue(), and Size.

EmitTargetCodeForSetTag()

SDValue AArch64SelectionDAGInfo::EmitTargetCodeForSetTag ( SelectionDAG & DAG, const SDLoc & dl, SDValue Chain, SDValue Op1, SDValue Op2, MachinePointerInfo DstPtrInfo, bool ZeroData ) const

overridevirtual

Reimplemented from llvm::SelectionDAGTargetInfo.

Definition at line 333 of file AArch64SelectionDAGInfo.cpp.

References AbstractManglingParser< Derived, Alloc >::Ops, assert(), llvm::cast(), EmitUnrolledSetTag(), llvm::ISD::FrameIndex, llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::SelectionDAG::getMachineNode(), llvm::SDValue::getOpcode(), llvm::SelectionDAG::getTargetConstant(), llvm::SelectionDAG::getTargetFrameIndex(), kSetTagLoopThreshold, llvm::MachineMemOperand::MOStore, SDValue(), llvm::SelectionDAG::setNodeMemRefs(), and Size.

verifyTargetNode()

void AArch64SelectionDAGInfo::verifyTargetNode ( const SelectionDAG & DAG, const SDNode * N ) const

overridevirtual

Checks that the given target-specific node is valid. Aborts if it is not.

Reimplemented from llvm::SelectionDAGTargetInfo.

Definition at line 33 of file AArch64SelectionDAGInfo.cpp.

References assert(), FlagsVT, llvm::EVT::getSizeInBits(), llvm::EVT::getVectorElementCount(), llvm::isa(), llvm::EVT::isInteger(), llvm::EVT::isVector(), N, and llvm::SelectionDAGGenTargetInfo::verifyTargetNode().

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

• lib/Target/AArch64/AArch64SelectionDAGInfo.h
• lib/Target/AArch64/AArch64SelectionDAGInfo.cpp