llvm::XCoreSelectionDAGInfo Class Reference

#include <XCoreSelectionDAGInfo.h>

Inheritance diagram for llvm::XCoreSelectionDAGInfo:

Collaboration diagram for llvm::XCoreSelectionDAGInfo:

List of all members.

Public Member Functions
	XCoreSelectionDAGInfo (const DataLayout &DL)
	~XCoreSelectionDAGInfo ()
SDValue	EmitTargetCodeForMemcpy (SelectionDAG &DAG, SDLoc dl, SDValue Chain, SDValue Op1, SDValue Op2, SDValue Op3, unsigned Align, bool isVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const override

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Detailed Description

Definition at line 23 of file XCoreSelectionDAGInfo.h.

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Constructor & Destructor Documentation

XCoreSelectionDAGInfo::XCoreSelectionDAGInfo

(

const DataLayout &

DL

)

[explicit]

Definition at line 19 of file XCoreSelectionDAGInfo.cpp.

XCoreSelectionDAGInfo::~XCoreSelectionDAGInfo

(

)

Definition at line 22 of file XCoreSelectionDAGInfo.cpp.

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Member Function Documentation

SDValue XCoreSelectionDAGInfo::EmitTargetCodeForMemcpy	(	SelectionDAG &	DAG,
		SDLoc	dl,
		SDValue	Chain,
		SDValue	Op1,
		SDValue	Op2,
		SDValue	Op3,
		unsigned	Align,
		bool	isVolatile,
		bool	AlwaysInline,
		MachinePointerInfo	DstPtrInfo,
		MachinePointerInfo	SrcPtrInfo
	)		const [override, virtual]

EmitTargetCodeForMemcpy - 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::TargetSelectionDAGInfo.

Definition at line 26 of file XCoreSelectionDAGInfo.cpp.

References llvm::SelectionDAG::getContext(), llvm::TargetLoweringBase::getDataLayout(), llvm::SelectionDAG::getExternalSymbol(), llvm::DataLayout::getIntPtrType(), llvm::TargetLoweringBase::getLibcallCallingConv(), llvm::TargetLoweringBase::getPointerTy(), llvm::EVT::getSizeInBits(), llvm::SelectionDAG::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), llvm::SDValue::getValueType(), llvm::Type::getVoidTy(), llvm::TargetLowering::LowerCallTo(), llvm::SelectionDAG::MaskedValueIsZero(), llvm::RTLIB::MEMCPY, llvm::TargetLowering::ArgListEntry::Node, llvm::TargetLowering::CallLoweringInfo::setCallee(), llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::TargetLowering::CallLoweringInfo::setDebugLoc(), and llvm::TargetLowering::ArgListEntry::Ty.

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

• XCoreSelectionDAGInfo.h
• XCoreSelectionDAGInfo.cpp