#include "llvm/CodeGen/GlobalISel/CombinerInfo.h"

Collaboration diagram for llvm::CombinerInfo:

Public Member Functions
	CombinerInfo (bool AllowIllegalOps, bool ShouldLegalizeIllegal, LegalizerInfo *LInfo)

virtual	~CombinerInfo ()=default

virtual bool	combine (GISelChangeObserver &Observer, MachineInstr &MI, MachineIRBuilder &B) const =0
	Attempt to combine instructions using MI as the root. More...

Public Attributes
bool	IllegalOpsAllowed
	If `IllegalOpsAllowed` is false, the CombinerHelper will make use of the legalizerInfo to check for legality before each transformation. More...

bool	LegalizeIllegalOps
	If `LegalizeIllegalOps` is true, the Combiner will also legalize the illegal ops that are created. More...

const LegalizerInfo *	LInfo

Detailed Description

Definition at line 28 of file CombinerInfo.h.

Constructor & Destructor Documentation

◆ CombinerInfo()

llvm::CombinerInfo::CombinerInfo	(	bool	AllowIllegalOps,
		bool	ShouldLegalizeIllegal,
		LegalizerInfo *	LInfo
	)

inline

Definition at line 30 of file CombinerInfo.h.

References assert(), LegalizeIllegalOps, and ~CombinerInfo().

◆ ~CombinerInfo()

virtual llvm::CombinerInfo::~CombinerInfo ( )

virtualdefault

Referenced by CombinerInfo().

Member Function Documentation

◆ combine()

virtual bool llvm::CombinerInfo::combine	(	GISelChangeObserver &	Observer,
		MachineInstr &	MI,
		MachineIRBuilder &	B
	)		const

pure virtual

Attempt to combine instructions using MI as the root.

Use Observer to report the creation, modification, and erasure of instructions. GISelChangeObserver will automatically report certain kinds of operations. These operations are:

Instructions that are newly inserted into the MachineFunction
Instructions that are erased from the MachineFunction.

However, it is important to report instruction modification and this is not automatic.

Referenced by llvm::Combiner::combineMachineInstrs().

Member Data Documentation

◆ IllegalOpsAllowed

bool llvm::CombinerInfo::IllegalOpsAllowed

If IllegalOpsAllowed is false, the CombinerHelper will make use of the legalizerInfo to check for legality before each transformation.

Definition at line 40 of file CombinerInfo.h.

◆ LegalizeIllegalOps

bool llvm::CombinerInfo::LegalizeIllegalOps

If LegalizeIllegalOps is true, the Combiner will also legalize the illegal ops that are created.

Definition at line 44 of file CombinerInfo.h.

Referenced by CombinerInfo().

◆ LInfo

const LegalizerInfo* llvm::CombinerInfo::LInfo

Definition at line 45 of file CombinerInfo.h.

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

include/llvm/CodeGen/GlobalISel/CombinerInfo.h

Public Member Functions

Public Attributes