LLVM  8.0.0svn
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llvm::MipsLegalizerInfo Class Reference

This class provides legalization strategies. More...

#include "Target/Mips/MipsLegalizerInfo.h"

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Public Member Functions

 MipsLegalizerInfo (const MipsSubtarget &ST)
 
- Public Member Functions inherited from llvm::LegalizerInfo
 LegalizerInfo ()
 
virtual ~LegalizerInfo ()=default
 
unsigned getOpcodeIdxForOpcode (unsigned Opcode) const
 
unsigned getActionDefinitionsIdx (unsigned Opcode) const
 
void computeTables ()
 Compute any ancillary tables needed to quickly decide how an operation should be handled. More...
 
void verify (const MCInstrInfo &MII) const
 Perform simple self-diagnostic and assert if there is anything obviously wrong with the actions set up. More...
 
void setAction (const InstrAspect &Aspect, LegalizeAction Action)
 More friendly way to set an action for common types that have an LLT representation. More...
 
void setLegalizeScalarToDifferentSizeStrategy (const unsigned Opcode, const unsigned TypeIdx, SizeChangeStrategy S)
 The setAction calls record the non-size-changing legalization actions to take on specificly-sized types. More...
 
void setLegalizeVectorElementToDifferentSizeStrategy (const unsigned Opcode, const unsigned TypeIdx, SizeChangeStrategy S)
 See also setLegalizeScalarToDifferentSizeStrategy. More...
 
const LegalizeRuleSetgetActionDefinitions (unsigned Opcode) const
 Get the action definitions for the given opcode. More...
 
LegalizeRuleSetgetActionDefinitionsBuilder (unsigned Opcode)
 Get the action definition builder for the given opcode. More...
 
LegalizeRuleSetgetActionDefinitionsBuilder (std::initializer_list< unsigned > Opcodes)
 Get the action definition builder for the given set of opcodes. More...
 
void aliasActionDefinitions (unsigned OpcodeTo, unsigned OpcodeFrom)
 
LegalizeActionStep getAction (const LegalityQuery &Query) const
 Determine what action should be taken to legalize the described instruction. More...
 
LegalizeActionStep getAction (const MachineInstr &MI, const MachineRegisterInfo &MRI) const
 Determine what action should be taken to legalize the given generic instruction. More...
 
bool isLegal (const MachineInstr &MI, const MachineRegisterInfo &MRI) const
 
virtual bool legalizeCustom (MachineInstr &MI, MachineRegisterInfo &MRI, MachineIRBuilder &MIRBuilder) const
 

Additional Inherited Members

- Public Types inherited from llvm::LegalizerInfo
using SizeAndAction = std::pair< uint16_t, LegalizeAction >
 
using SizeAndActionsVec = std::vector< SizeAndAction >
 
using SizeChangeStrategy = std::function< SizeAndActionsVec(const SizeAndActionsVec &v)>
 
- Static Public Member Functions inherited from llvm::LegalizerInfo
static bool needsLegalizingToDifferentSize (const LegalizeAction Action)
 
static SizeAndActionsVec unsupportedForDifferentSizes (const SizeAndActionsVec &v)
 A SizeChangeStrategy for the common case where legalization for a particular operation consists of only supporting a specific set of type sizes. More...
 
static SizeAndActionsVec widenToLargerTypesAndNarrowToLargest (const SizeAndActionsVec &v)
 A SizeChangeStrategy for the common case where legalization for a particular operation consists of widening the type to a large legal type, unless there is no such type and then instead it should be narrowed to the largest legal type. More...
 
static SizeAndActionsVec widenToLargerTypesUnsupportedOtherwise (const SizeAndActionsVec &v)
 
static SizeAndActionsVec narrowToSmallerAndUnsupportedIfTooSmall (const SizeAndActionsVec &v)
 
static SizeAndActionsVec narrowToSmallerAndWidenToSmallest (const SizeAndActionsVec &v)
 
static SizeAndActionsVec moreToWiderTypesAndLessToWidest (const SizeAndActionsVec &v)
 A SizeChangeStrategy for the common case where legalization for a particular vector operation consists of having more elements in the vector, to a type that is legal. More...
 
static SizeAndActionsVec increaseToLargerTypesAndDecreaseToLargest (const SizeAndActionsVec &v, LegalizeAction IncreaseAction, LegalizeAction DecreaseAction)
 Helper function to implement many typical SizeChangeStrategy functions. More...
 
static SizeAndActionsVec decreaseToSmallerTypesAndIncreaseToSmallest (const SizeAndActionsVec &v, LegalizeAction DecreaseAction, LegalizeAction IncreaseAction)
 Helper function to implement many typical SizeChangeStrategy functions. More...
 

Detailed Description

This class provides legalization strategies.

Definition at line 24 of file MipsLegalizerInfo.h.

Constructor & Destructor Documentation

◆ MipsLegalizerInfo()

MipsLegalizerInfo::MipsLegalizerInfo ( const MipsSubtarget ST)

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