LLVM 17.0.0git
Public Member Functions | List of all members
llvm::LegalizeRuleSet Class Reference

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

Public Member Functions

 LegalizeRuleSet ()=default
 
bool isAliasedByAnother ()
 
void setIsAliasedByAnother ()
 
void aliasTo (unsigned Opcode)
 
unsigned getAlias () const
 
unsigned immIdx (unsigned ImmIdx)
 
LegalizeRuleSet & legalIf (LegalityPredicate Predicate)
 The instruction is legal if predicate is true.
 
LegalizeRuleSet & legalFor (std::initializer_list< LLT > Types)
 The instruction is legal when type index 0 is any type in the given list.
 
LegalizeRuleSet & legalFor (std::initializer_list< std::pair< LLT, LLT > > Types)
 The instruction is legal when type indexes 0 and 1 is any type pair in the given list.
 
LegalizeRuleSet & legalForTypeWithAnyImm (std::initializer_list< LLT > Types)
 The instruction is legal when type index 0 is any type in the given list and imm index 0 is anything.
 
LegalizeRuleSet & legalForTypeWithAnyImm (std::initializer_list< std::pair< LLT, LLT > > Types)
 
LegalizeRuleSet & legalForTypesWithMemDesc (std::initializer_list< LegalityPredicates::TypePairAndMemDesc > TypesAndMemDesc)
 The instruction is legal when type indexes 0 and 1 along with the memory size and minimum alignment is any type and size tuple in the given list.
 
LegalizeRuleSet & legalForCartesianProduct (std::initializer_list< LLT > Types)
 The instruction is legal when type indexes 0 and 1 are both in the given list.
 
LegalizeRuleSet & legalForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1)
 The instruction is legal when type indexes 0 and 1 are both their respective lists.
 
LegalizeRuleSet & legalForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1, std::initializer_list< LLT > Types2)
 The instruction is legal when type indexes 0, 1, and 2 are both their respective lists.
 
LegalizeRuleSet & alwaysLegal ()
 
LegalizeRuleSet & bitcastIf (LegalityPredicate Predicate, LegalizeMutation Mutation)
 The specified type index is coerced if predicate is true.
 
LegalizeRuleSet & lower ()
 The instruction is lowered.
 
LegalizeRuleSet & lowerIf (LegalityPredicate Predicate)
 The instruction is lowered if predicate is true.
 
LegalizeRuleSet & lowerIf (LegalityPredicate Predicate, LegalizeMutation Mutation)
 The instruction is lowered if predicate is true.
 
LegalizeRuleSet & lowerFor (std::initializer_list< LLT > Types)
 The instruction is lowered when type index 0 is any type in the given list.
 
LegalizeRuleSet & lowerFor (std::initializer_list< LLT > Types, LegalizeMutation Mutation)
 The instruction is lowered when type index 0 is any type in the given list.
 
LegalizeRuleSet & lowerFor (std::initializer_list< std::pair< LLT, LLT > > Types)
 The instruction is lowered when type indexes 0 and 1 is any type pair in the given list.
 
LegalizeRuleSet & lowerFor (std::initializer_list< std::pair< LLT, LLT > > Types, LegalizeMutation Mutation)
 The instruction is lowered when type indexes 0 and 1 is any type pair in the given list.
 
LegalizeRuleSet & lowerForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1)
 The instruction is lowered when type indexes 0 and 1 are both in their respective lists.
 
LegalizeRuleSet & lowerForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1, std::initializer_list< LLT > Types2)
 The instruction is lowered when when type indexes 0, 1, and 2 are all in their respective lists.
 
LegalizeRuleSet & libcall ()
 The instruction is emitted as a library call.
 
LegalizeRuleSet & libcallIf (LegalityPredicate Predicate)
 Like legalIf, but for the Libcall action.
 
LegalizeRuleSet & libcallFor (std::initializer_list< LLT > Types)
 
LegalizeRuleSet & libcallFor (std::initializer_list< std::pair< LLT, LLT > > Types)
 
LegalizeRuleSet & libcallForCartesianProduct (std::initializer_list< LLT > Types)
 
LegalizeRuleSet & libcallForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1)
 
LegalizeRuleSet & widenScalarIf (LegalityPredicate Predicate, LegalizeMutation Mutation)
 Widen the scalar to the one selected by the mutation if the predicate is true.
 
LegalizeRuleSet & narrowScalarIf (LegalityPredicate Predicate, LegalizeMutation Mutation)
 Narrow the scalar to the one selected by the mutation if the predicate is true.
 
LegalizeRuleSet & narrowScalarFor (std::initializer_list< std::pair< LLT, LLT > > Types, LegalizeMutation Mutation)
 Narrow the scalar, specified in mutation, when type indexes 0 and 1 is any type pair in the given list.
 
LegalizeRuleSet & moreElementsIf (LegalityPredicate Predicate, LegalizeMutation Mutation)
 Add more elements to reach the type selected by the mutation if the predicate is true.
 
LegalizeRuleSet & fewerElementsIf (LegalityPredicate Predicate, LegalizeMutation Mutation)
 Remove elements to reach the type selected by the mutation if the predicate is true.
 
LegalizeRuleSet & unsupported ()
 The instruction is unsupported.
 
LegalizeRuleSet & unsupportedIf (LegalityPredicate Predicate)
 
LegalizeRuleSet & unsupportedFor (std::initializer_list< LLT > Types)
 
LegalizeRuleSet & unsupportedIfMemSizeNotPow2 ()
 
LegalizeRuleSet & lowerIfMemSizeNotPow2 ()
 Lower a memory operation if the memory size, rounded to bytes, is not a power of 2.
 
LegalizeRuleSet & lowerIfMemSizeNotByteSizePow2 ()
 Lower a memory operation if the memory access size is not a round power of 2 byte size.
 
LegalizeRuleSet & customIf (LegalityPredicate Predicate)
 
LegalizeRuleSet & customFor (std::initializer_list< LLT > Types)
 
LegalizeRuleSet & customFor (std::initializer_list< std::pair< LLT, LLT > > Types)
 The instruction is custom when type indexes 0 and 1 is any type pair in the given list.
 
LegalizeRuleSet & customForCartesianProduct (std::initializer_list< LLT > Types)
 
LegalizeRuleSet & customForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1)
 The instruction is custom when type indexes 0 and 1 are both in their respective lists.
 
LegalizeRuleSet & customForCartesianProduct (std::initializer_list< LLT > Types0, std::initializer_list< LLT > Types1, std::initializer_list< LLT > Types2)
 The instruction is custom when when type indexes 0, 1, and 2 are all in their respective lists.
 
LegalizeRuleSet & custom ()
 Unconditionally custom lower.
 
LegalizeRuleSet & widenScalarToNextPow2 (unsigned TypeIdx, unsigned MinSize=0)
 Widen the scalar to the next power of two that is at least MinSize.
 
LegalizeRuleSet & widenScalarToNextMultipleOf (unsigned TypeIdx, unsigned Size)
 Widen the scalar to the next multiple of Size.
 
LegalizeRuleSet & widenScalarOrEltToNextPow2 (unsigned TypeIdx, unsigned MinSize=0)
 Widen the scalar or vector element type to the next power of two that is at least MinSize.
 
LegalizeRuleSet & narrowScalar (unsigned TypeIdx, LegalizeMutation Mutation)
 
LegalizeRuleSet & scalarize (unsigned TypeIdx)
 
LegalizeRuleSet & scalarizeIf (LegalityPredicate Predicate, unsigned TypeIdx)
 
LegalizeRuleSet & minScalarOrElt (unsigned TypeIdx, const LLT Ty)
 Ensure the scalar or element is at least as wide as Ty.
 
LegalizeRuleSet & minScalarOrEltIf (LegalityPredicate Predicate, unsigned TypeIdx, const LLT Ty)
 Ensure the scalar or element is at least as wide as Ty.
 
LegalizeRuleSet & minScalar (unsigned TypeIdx, const LLT Ty)
 Ensure the scalar is at least as wide as Ty.
 
LegalizeRuleSet & minScalarIf (LegalityPredicate Predicate, unsigned TypeIdx, const LLT Ty)
 Ensure the scalar is at least as wide as Ty if condition is met.
 
LegalizeRuleSet & maxScalarOrElt (unsigned TypeIdx, const LLT Ty)
 Ensure the scalar is at most as wide as Ty.
 
LegalizeRuleSet & maxScalar (unsigned TypeIdx, const LLT Ty)
 Ensure the scalar is at most as wide as Ty.
 
LegalizeRuleSet & maxScalarIf (LegalityPredicate Predicate, unsigned TypeIdx, const LLT Ty)
 Conditionally limit the maximum size of the scalar.
 
LegalizeRuleSet & clampScalar (unsigned TypeIdx, const LLT MinTy, const LLT MaxTy)
 Limit the range of scalar sizes to MinTy and MaxTy.
 
LegalizeRuleSet & clampScalarOrElt (unsigned TypeIdx, const LLT MinTy, const LLT MaxTy)
 Limit the range of scalar sizes to MinTy and MaxTy.
 
LegalizeRuleSet & minScalarSameAs (unsigned TypeIdx, unsigned LargeTypeIdx)
 Widen the scalar to match the size of another.
 
LegalizeRuleSet & maxScalarSameAs (unsigned TypeIdx, unsigned NarrowTypeIdx)
 Narrow the scalar to match the size of another.
 
LegalizeRuleSet & scalarSameSizeAs (unsigned TypeIdx, unsigned SameSizeIdx)
 Change the type TypeIdx to have the same scalar size as type SameSizeIdx.
 
LegalizeRuleSet & minScalarEltSameAsIf (LegalityPredicate Predicate, unsigned TypeIdx, unsigned LargeTypeIdx)
 Conditionally widen the scalar or elt to match the size of another.
 
LegalizeRuleSet & maxScalarEltSameAsIf (LegalityPredicate Predicate, unsigned TypeIdx, unsigned SmallTypeIdx)
 Conditionally narrow the scalar or elt to match the size of another.
 
LegalizeRuleSet & moreElementsToNextPow2 (unsigned TypeIdx)
 Add more elements to the vector to reach the next power of two.
 
LegalizeRuleSet & clampMinNumElements (unsigned TypeIdx, const LLT EltTy, unsigned MinElements)
 Limit the number of elements in EltTy vectors to at least MinElements.
 
LegalizeRuleSet & alignNumElementsTo (unsigned TypeIdx, const LLT EltTy, unsigned NumElts)
 Set number of elements to nearest larger multiple of NumElts.
 
LegalizeRuleSet & clampMaxNumElements (unsigned TypeIdx, const LLT EltTy, unsigned MaxElements)
 Limit the number of elements in EltTy vectors to at most MaxElements.
 
LegalizeRuleSet & clampNumElements (unsigned TypeIdx, const LLT MinTy, const LLT MaxTy)
 Limit the number of elements for the given vectors to at least MinTy's number of elements and at most MaxTy's number of elements.
 
LegalizeRuleSet & clampMaxNumElementsStrict (unsigned TypeIdx, const LLT EltTy, unsigned NumElts)
 Express EltTy vectors strictly using vectors with NumElts elements (or scalars when NumElts equals 1).
 
LegalizeRuleSet & fallback ()
 Fallback on the previous implementation.
 
bool verifyTypeIdxsCoverage (unsigned NumTypeIdxs) const
 Check if there is no type index which is obviously not handled by the LegalizeRuleSet in any way at all.
 
bool verifyImmIdxsCoverage (unsigned NumImmIdxs) const
 Check if there is no imm index which is obviously not handled by the LegalizeRuleSet in any way at all.
 
LegalizeActionStep apply (const LegalityQuery &Query) const
 Apply the ruleset to the given LegalityQuery.
 

Detailed Description

Definition at line 418 of file LegalizerInfo.h.

Constructor & Destructor Documentation

◆ LegalizeRuleSet()

llvm::LegalizeRuleSet::LegalizeRuleSet ( )
default

Member Function Documentation

◆ aliasTo()

void llvm::LegalizeRuleSet::aliasTo ( unsigned  Opcode)
inline

Definition at line 567 of file LegalizerInfo.h.

References assert(), and llvm::SmallVectorBase< Size_T >::empty().

Referenced by llvm::LegalizerInfo::aliasActionDefinitions().

◆ alignNumElementsTo()

LegalizeRuleSet & llvm::LegalizeRuleSet::alignNumElementsTo ( unsigned  TypeIdx,
const LLT  EltTy,
unsigned  NumElts 
)
inline

Set number of elements to nearest larger multiple of NumElts.

Definition at line 1112 of file LegalizerInfo.h.

References llvm::alignTo(), llvm::LLT::fixed_vector(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::LLT::isVector(), and llvm::LegalityQuery::Types.

Referenced by clampMaxNumElementsStrict().

◆ alwaysLegal()

LegalizeRuleSet & llvm::LegalizeRuleSet::alwaysLegal ( )
inline

Definition at line 643 of file LegalizerInfo.h.

Referenced by llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ apply()

LegalizeActionStep LegalizeRuleSet::apply ( const LegalityQuery &  Query) const

Apply the ruleset to the given LegalityQuery.

Definition at line 183 of file LegalizerInfo.cpp.

References assert(), llvm::dbgs(), hasNoSimpleLoops(), LLVM_DEBUG, Mutation, mutationIsSane(), and llvm::LegalityQuery::print().

Referenced by llvm::LegalizerInfo::getAction().

◆ bitcastIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::bitcastIf ( LegalityPredicate  Predicate,
LegalizeMutation  Mutation 
)
inline

The specified type index is coerced if predicate is true.

Definition at line 650 of file LegalizerInfo.h.

References Mutation.

Referenced by llvm::PPCLegalizerInfo::PPCLegalizerInfo().

◆ clampMaxNumElements()

LegalizeRuleSet & llvm::LegalizeRuleSet::clampMaxNumElements ( unsigned  TypeIdx,
const LLT  EltTy,
unsigned  MaxElements 
)
inline

Limit the number of elements in EltTy vectors to at most MaxElements.

Definition at line 1131 of file LegalizerInfo.h.

References llvm::LLT::getElementType(), llvm::ElementCount::getFixed(), llvm::LLT::getNumElements(), llvm::LLT::isVector(), llvm::LLT::scalarOrVector(), and llvm::LegalityQuery::Types.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), clampMaxNumElementsStrict(), and clampNumElements().

◆ clampMaxNumElementsStrict()

LegalizeRuleSet & llvm::LegalizeRuleSet::clampMaxNumElementsStrict ( unsigned  TypeIdx,
const LLT  EltTy,
unsigned  NumElts 
)
inline

Express EltTy vectors strictly using vectors with NumElts elements (or scalars when NumElts equals 1).

First pad with undef elements to nearest larger multiple of NumElts. Then perform split with all sub-instructions having the same type. Using clampMaxNumElements (non-strict) can result in leftover instruction with different type (fewer elements then NumElts or scalar). No effect if the type is not a vector.

Definition at line 1172 of file LegalizerInfo.h.

References alignNumElementsTo(), and clampMaxNumElements().

Referenced by llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo().

◆ clampMinNumElements()

LegalizeRuleSet & llvm::LegalizeRuleSet::clampMinNumElements ( unsigned  TypeIdx,
const LLT  EltTy,
unsigned  MinElements 
)
inline

Limit the number of elements in EltTy vectors to at least MinElements.

Definition at line 1093 of file LegalizerInfo.h.

References llvm::LLT::fixed_vector(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::LLT::isVector(), and llvm::LegalityQuery::Types.

Referenced by clampNumElements().

◆ clampNumElements()

LegalizeRuleSet & llvm::LegalizeRuleSet::clampNumElements ( unsigned  TypeIdx,
const LLT  MinTy,
const LLT  MaxTy 
)
inline

Limit the number of elements for the given vectors to at least MinTy's number of elements and at most MaxTy's number of elements.

No effect if the type is not a vector or does not have the same element type as the constraints. The element type of MinTy and MaxTy must match.

Definition at line 1155 of file LegalizerInfo.h.

References assert(), clampMaxNumElements(), clampMinNumElements(), llvm::LLT::getElementType(), and llvm::LLT::getNumElements().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ clampScalar()

LegalizeRuleSet & llvm::LegalizeRuleSet::clampScalar ( unsigned  TypeIdx,
const LLT  MinTy,
const LLT  MaxTy 
)
inline

Limit the range of scalar sizes to MinTy and MaxTy.

Definition at line 1006 of file LegalizerInfo.h.

References assert(), llvm::LLT::isScalar(), maxScalar(), and minScalar().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), llvm::ARMLegalizerInfo::ARMLegalizerInfo(), and llvm::MipsLegalizerInfo::MipsLegalizerInfo().

◆ clampScalarOrElt()

LegalizeRuleSet & llvm::LegalizeRuleSet::clampScalarOrElt ( unsigned  TypeIdx,
const LLT  MinTy,
const LLT  MaxTy 
)
inline

Limit the range of scalar sizes to MinTy and MaxTy.

Definition at line 1013 of file LegalizerInfo.h.

References maxScalarOrElt(), and minScalarOrElt().

Referenced by llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo().

◆ custom()

LegalizeRuleSet & llvm::LegalizeRuleSet::custom ( )
inline

Unconditionally custom lower.

Definition at line 871 of file LegalizerInfo.h.

References customIf().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ customFor() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::customFor ( std::initializer_list< LLT >  Types)
inline

Definition at line 840 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), and llvm::ARMLegalizerInfo::ARMLegalizerInfo().

◆ customFor() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::customFor ( std::initializer_list< std::pair< LLT, LLT > >  Types)
inline

The instruction is custom when type indexes 0 and 1 is any type pair in the given list.

Definition at line 846 of file LegalizerInfo.h.

◆ customForCartesianProduct() [1/3]

LegalizeRuleSet & llvm::LegalizeRuleSet::customForCartesianProduct ( std::initializer_list< LLT >  Types)
inline

Definition at line 850 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), and llvm::ARMLegalizerInfo::ARMLegalizerInfo().

◆ customForCartesianProduct() [2/3]

LegalizeRuleSet & llvm::LegalizeRuleSet::customForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1 
)
inline

The instruction is custom when type indexes 0 and 1 are both in their respective lists.

Definition at line 856 of file LegalizerInfo.h.

◆ customForCartesianProduct() [3/3]

LegalizeRuleSet & llvm::LegalizeRuleSet::customForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1,
std::initializer_list< LLT >  Types2 
)
inline

The instruction is custom when when type indexes 0, 1, and 2 are all in their respective lists.

Definition at line 863 of file LegalizerInfo.h.

◆ customIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::customIf ( LegalityPredicate  Predicate)
inline

Definition at line 834 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), custom(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ fallback()

LegalizeRuleSet & llvm::LegalizeRuleSet::fallback ( )
inline

Fallback on the previous implementation.

This should only be used while porting a rule.

Definition at line 1180 of file LegalizerInfo.h.

◆ fewerElementsIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::fewerElementsIf ( LegalityPredicate  Predicate,
LegalizeMutation  Mutation 
)
inline

Remove elements to reach the type selected by the mutation if the predicate is true.

Definition at line 792 of file LegalizerInfo.h.

References Mutation.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), and llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo().

◆ getAlias()

unsigned llvm::LegalizeRuleSet::getAlias ( ) const
inline

Definition at line 573 of file LegalizerInfo.h.

◆ immIdx()

unsigned llvm::LegalizeRuleSet::immIdx ( unsigned  ImmIdx)
inline

Definition at line 575 of file LegalizerInfo.h.

References assert(), llvm::MCOI::OPERAND_FIRST_GENERIC_IMM, llvm::MCOI::OPERAND_LAST_GENERIC_IMM, and llvm::SmallBitVector::set().

◆ isAliasedByAnother()

bool llvm::LegalizeRuleSet::isAliasedByAnother ( )
inline

Definition at line 565 of file LegalizerInfo.h.

◆ legalFor() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalFor ( std::initializer_list< LLT >  Types)
inline

The instruction is legal when type index 0 is any type in the given list.

Definition at line 593 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), llvm::ARMLegalizerInfo::ARMLegalizerInfo(), llvm::M68kLegalizerInfo::M68kLegalizerInfo(), llvm::MipsLegalizerInfo::MipsLegalizerInfo(), llvm::PPCLegalizerInfo::PPCLegalizerInfo(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ legalFor() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalFor ( std::initializer_list< std::pair< LLT, LLT > >  Types)
inline

The instruction is legal when type indexes 0 and 1 is any type pair in the given list.

Definition at line 598 of file LegalizerInfo.h.

◆ legalForCartesianProduct() [1/3]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalForCartesianProduct ( std::initializer_list< LLT >  Types)
inline

The instruction is legal when type indexes 0 and 1 are both in the given list.

That is, the type pair is in the cartesian product of the list.

Definition at line 625 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::ARMLegalizerInfo::ARMLegalizerInfo(), llvm::MipsLegalizerInfo::MipsLegalizerInfo(), llvm::PPCLegalizerInfo::PPCLegalizerInfo(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ legalForCartesianProduct() [2/3]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1 
)
inline

The instruction is legal when type indexes 0 and 1 are both their respective lists.

Definition at line 630 of file LegalizerInfo.h.

◆ legalForCartesianProduct() [3/3]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1,
std::initializer_list< LLT >  Types2 
)
inline

The instruction is legal when type indexes 0, 1, and 2 are both their respective lists.

Definition at line 636 of file LegalizerInfo.h.

◆ legalForTypesWithMemDesc()

LegalizeRuleSet & llvm::LegalizeRuleSet::legalForTypesWithMemDesc ( std::initializer_list< LegalityPredicates::TypePairAndMemDesc >  TypesAndMemDesc)
inline

The instruction is legal when type indexes 0 and 1 along with the memory size and minimum alignment is any type and size tuple in the given list.

Definition at line 616 of file LegalizerInfo.h.

References llvm::LegalityPredicates::typePairAndMemDescInSet().

Referenced by llvm::ARMLegalizerInfo::ARMLegalizerInfo().

◆ legalForTypeWithAnyImm() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalForTypeWithAnyImm ( std::initializer_list< LLT >  Types)
inline

The instruction is legal when type index 0 is any type in the given list and imm index 0 is anything.

Definition at line 603 of file LegalizerInfo.h.

◆ legalForTypeWithAnyImm() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::legalForTypeWithAnyImm ( std::initializer_list< std::pair< LLT, LLT > >  Types)
inline

Definition at line 608 of file LegalizerInfo.h.

◆ legalIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::legalIf ( LegalityPredicate  Predicate)
inline

The instruction is legal if predicate is true.

Definition at line 586 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), llvm::MipsLegalizerInfo::MipsLegalizerInfo(), llvm::PPCLegalizerInfo::PPCLegalizerInfo(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ libcall()

LegalizeRuleSet & llvm::LegalizeRuleSet::libcall ( )
inline

The instruction is emitted as a library call.

Definition at line 723 of file LegalizerInfo.h.

Referenced by llvm::X86LegalizerInfo::X86LegalizerInfo().

◆ libcallFor() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::libcallFor ( std::initializer_list< LLT >  Types)
inline

Definition at line 738 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::ARMLegalizerInfo::ARMLegalizerInfo(), and llvm::MipsLegalizerInfo::MipsLegalizerInfo().

◆ libcallFor() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::libcallFor ( std::initializer_list< std::pair< LLT, LLT > >  Types)
inline

Definition at line 742 of file LegalizerInfo.h.

◆ libcallForCartesianProduct() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::libcallForCartesianProduct ( std::initializer_list< LLT >  Types)
inline

Definition at line 746 of file LegalizerInfo.h.

Referenced by llvm::MipsLegalizerInfo::MipsLegalizerInfo().

◆ libcallForCartesianProduct() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::libcallForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1 
)
inline

Definition at line 750 of file LegalizerInfo.h.

◆ libcallIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::libcallIf ( LegalityPredicate  Predicate)
inline

Like legalIf, but for the Libcall action.

Definition at line 732 of file LegalizerInfo.h.

◆ lower()

LegalizeRuleSet & llvm::LegalizeRuleSet::lower ( )
inline

The instruction is lowered.

Definition at line 659 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), llvm::ARMLegalizerInfo::ARMLegalizerInfo(), llvm::MipsLegalizerInfo::MipsLegalizerInfo(), llvm::PPCLegalizerInfo::PPCLegalizerInfo(), and llvm::SPIRVLegalizerInfo::SPIRVLegalizerInfo().

◆ lowerFor() [1/4]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerFor ( std::initializer_list< LLT >  Types)
inline

The instruction is lowered when type index 0 is any type in the given list.

Keep type index 0 as the same type.

Definition at line 685 of file LegalizerInfo.h.

Referenced by llvm::ARMLegalizerInfo::ARMLegalizerInfo(), llvm::MipsLegalizerInfo::MipsLegalizerInfo(), and llvm::PPCLegalizerInfo::PPCLegalizerInfo().

◆ lowerFor() [2/4]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerFor ( std::initializer_list< LLT >  Types,
LegalizeMutation  Mutation 
)
inline

The instruction is lowered when type index 0 is any type in the given list.

Definition at line 690 of file LegalizerInfo.h.

References Mutation.

◆ lowerFor() [3/4]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerFor ( std::initializer_list< std::pair< LLT, LLT > >  Types)
inline

The instruction is lowered when type indexes 0 and 1 is any type pair in the given list.

Keep type index 0 as the same type.

Definition at line 696 of file LegalizerInfo.h.

◆ lowerFor() [4/4]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerFor ( std::initializer_list< std::pair< LLT, LLT > >  Types,
LegalizeMutation  Mutation 
)
inline

The instruction is lowered when type indexes 0 and 1 is any type pair in the given list.

Definition at line 701 of file LegalizerInfo.h.

References Mutation.

◆ lowerForCartesianProduct() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1 
)
inline

The instruction is lowered when type indexes 0 and 1 are both in their respective lists.

Definition at line 707 of file LegalizerInfo.h.

◆ lowerForCartesianProduct() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerForCartesianProduct ( std::initializer_list< LLT >  Types0,
std::initializer_list< LLT >  Types1,
std::initializer_list< LLT >  Types2 
)
inline

The instruction is lowered when when type indexes 0, 1, and 2 are all in their respective lists.

Definition at line 714 of file LegalizerInfo.h.

◆ lowerIf() [1/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerIf ( LegalityPredicate  Predicate)
inline

The instruction is lowered if predicate is true.

Keep type index 0 as the same type.

Definition at line 668 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ lowerIf() [2/2]

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerIf ( LegalityPredicate  Predicate,
LegalizeMutation  Mutation 
)
inline

The instruction is lowered if predicate is true.

Definition at line 676 of file LegalizerInfo.h.

References Mutation.

◆ lowerIfMemSizeNotByteSizePow2()

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerIfMemSizeNotByteSizePow2 ( )
inline

Lower a memory operation if the memory access size is not a round power of 2 byte size.

This is stricter than lowerIfMemSizeNotPow2, and more likely what you want (e.g. this will lower s1, s7 and s24).

Definition at line 829 of file LegalizerInfo.h.

References llvm::LegalityPredicates::memSizeNotByteSizePow2().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ lowerIfMemSizeNotPow2()

LegalizeRuleSet & llvm::LegalizeRuleSet::lowerIfMemSizeNotPow2 ( )
inline

Lower a memory operation if the memory size, rounded to bytes, is not a power of 2.

For example, this will not trigger for s1 or s7, but will for s24.

Definition at line 821 of file LegalizerInfo.h.

References llvm::LegalityPredicates::memSizeInBytesNotPow2().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ maxScalar()

LegalizeRuleSet & llvm::LegalizeRuleSet::maxScalar ( unsigned  TypeIdx,
const LLT  Ty 
)
inline

Ensure the scalar is at most as wide as Ty.

Definition at line 979 of file LegalizerInfo.h.

References llvm::LLT::getSizeInBits().

Referenced by llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), llvm::ARMLegalizerInfo::ARMLegalizerInfo(), clampScalar(), and llvm::MipsLegalizerInfo::MipsLegalizerInfo().

◆ maxScalarEltSameAsIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::maxScalarEltSameAsIf ( LegalityPredicate  Predicate,
unsigned  TypeIdx,
unsigned  SmallTypeIdx 
)
inline

Conditionally narrow the scalar or elt to match the size of another.

Definition at line 1066 of file LegalizerInfo.h.

References narrowScalarIf(), and llvm::LegalityQuery::Types.

◆ maxScalarIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::maxScalarIf ( LegalityPredicate  Predicate,
unsigned  TypeIdx,
const LLT  Ty 
)
inline

Conditionally limit the maximum size of the scalar.

For example, when the maximum size of one type depends on the size of another such as extracting N bits from an M bit container.

Definition at line 990 of file LegalizerInfo.h.

References llvm::LLT::getSizeInBits(), llvm::LLT::isScalar(), and llvm::LegalityQuery::Types.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ maxScalarOrElt()

LegalizeRuleSet & llvm::LegalizeRuleSet::maxScalarOrElt ( unsigned  TypeIdx,
const LLT  Ty 
)
inline

Ensure the scalar is at most as wide as Ty.

Definition at line 970 of file LegalizerInfo.h.

References llvm::LLT::getScalarSizeInBits().

Referenced by clampScalarOrElt().

◆ maxScalarSameAs()

LegalizeRuleSet & llvm::LegalizeRuleSet::maxScalarSameAs ( unsigned  TypeIdx,
unsigned  NarrowTypeIdx 
)
inline

Narrow the scalar to match the size of another.

Definition at line 1030 of file LegalizerInfo.h.

References llvm::LegalizeMutations::changeElementSizeTo(), narrowScalarIf(), and llvm::LegalityQuery::Types.

Referenced by scalarSameSizeAs().

◆ minScalar()

LegalizeRuleSet & llvm::LegalizeRuleSet::minScalar ( unsigned  TypeIdx,
const LLT  Ty 
)
inline

Ensure the scalar is at least as wide as Ty.

Definition at line 945 of file LegalizerInfo.h.

References llvm::LLT::getSizeInBits().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), clampScalar(), llvm::MipsLegalizerInfo::MipsLegalizerInfo(), and llvm::X86LegalizerInfo::X86LegalizerInfo().

◆ minScalarEltSameAsIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::minScalarEltSameAsIf ( LegalityPredicate  Predicate,
unsigned  TypeIdx,
unsigned  LargeTypeIdx 
)
inline

Conditionally widen the scalar or elt to match the size of another.

Definition at line 1048 of file LegalizerInfo.h.

References llvm::LLT::scalar(), llvm::LegalityQuery::Types, and widenScalarIf().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ minScalarIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::minScalarIf ( LegalityPredicate  Predicate,
unsigned  TypeIdx,
const LLT  Ty 
)
inline

Ensure the scalar is at least as wide as Ty if condition is met.

Definition at line 954 of file LegalizerInfo.h.

References llvm::LLT::getSizeInBits(), llvm::LLT::isScalar(), and llvm::LegalityQuery::Types.

◆ minScalarOrElt()

LegalizeRuleSet & llvm::LegalizeRuleSet::minScalarOrElt ( unsigned  TypeIdx,
const LLT  Ty 
)
inline

Ensure the scalar or element is at least as wide as Ty.

Definition at line 925 of file LegalizerInfo.h.

References llvm::LLT::getScalarSizeInBits().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), and clampScalarOrElt().

◆ minScalarOrEltIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::minScalarOrEltIf ( LegalityPredicate  Predicate,
unsigned  TypeIdx,
const LLT  Ty 
)
inline

Ensure the scalar or element is at least as wide as Ty.

Definition at line 934 of file LegalizerInfo.h.

References llvm::LLT::getScalarSizeInBits().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ minScalarSameAs()

LegalizeRuleSet & llvm::LegalizeRuleSet::minScalarSameAs ( unsigned  TypeIdx,
unsigned  LargeTypeIdx 
)
inline

Widen the scalar to match the size of another.

Definition at line 1019 of file LegalizerInfo.h.

References llvm::LegalizeMutations::changeElementSizeTo(), llvm::LegalityQuery::Types, and widenScalarIf().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), and scalarSameSizeAs().

◆ moreElementsIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::moreElementsIf ( LegalityPredicate  Predicate,
LegalizeMutation  Mutation 
)
inline

Add more elements to reach the type selected by the mutation if the predicate is true.

Definition at line 783 of file LegalizerInfo.h.

References Mutation.

Referenced by llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo().

◆ moreElementsToNextPow2()

LegalizeRuleSet & llvm::LegalizeRuleSet::moreElementsToNextPow2 ( unsigned  TypeIdx)
inline

Add more elements to the vector to reach the next power of two.

No effect if the type is not a vector or the element count is a power of two.

Definition at line 1085 of file LegalizerInfo.h.

References llvm::LegalizeMutations::moreElementsToNextPow2().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ narrowScalar()

LegalizeRuleSet & llvm::LegalizeRuleSet::narrowScalar ( unsigned  TypeIdx,
LegalizeMutation  Mutation 
)
inline

Definition at line 905 of file LegalizerInfo.h.

References Mutation.

◆ narrowScalarFor()

LegalizeRuleSet & llvm::LegalizeRuleSet::narrowScalarFor ( std::initializer_list< std::pair< LLT, LLT > >  Types,
LegalizeMutation  Mutation 
)
inline

Narrow the scalar, specified in mutation, when type indexes 0 and 1 is any type pair in the given list.

Definition at line 776 of file LegalizerInfo.h.

References Mutation.

◆ narrowScalarIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::narrowScalarIf ( LegalityPredicate  Predicate,
LegalizeMutation  Mutation 
)
inline

Narrow the scalar to the one selected by the mutation if the predicate is true.

Definition at line 766 of file LegalizerInfo.h.

References Mutation.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), maxScalarEltSameAsIf(), and maxScalarSameAs().

◆ scalarize()

LegalizeRuleSet & llvm::LegalizeRuleSet::scalarize ( unsigned  TypeIdx)
inline

Definition at line 911 of file LegalizerInfo.h.

References llvm::LegalizeMutations::scalarize().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), and llvm::X86LegalizerInfo::X86LegalizerInfo().

◆ scalarizeIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::scalarizeIf ( LegalityPredicate  Predicate,
unsigned  TypeIdx 
)
inline

Definition at line 917 of file LegalizerInfo.h.

References llvm::LegalizeMutations::scalarize().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ scalarSameSizeAs()

LegalizeRuleSet & llvm::LegalizeRuleSet::scalarSameSizeAs ( unsigned  TypeIdx,
unsigned  SameSizeIdx 
)
inline

Change the type TypeIdx to have the same scalar size as type SameSizeIdx.

Definition at line 1042 of file LegalizerInfo.h.

References maxScalarSameAs(), and minScalarSameAs().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ setIsAliasedByAnother()

void llvm::LegalizeRuleSet::setIsAliasedByAnother ( )
inline

Definition at line 566 of file LegalizerInfo.h.

◆ unsupported()

LegalizeRuleSet & llvm::LegalizeRuleSet::unsupported ( )
inline

The instruction is unsupported.

Definition at line 801 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ unsupportedFor()

LegalizeRuleSet & llvm::LegalizeRuleSet::unsupportedFor ( std::initializer_list< LLT >  Types)
inline

Definition at line 809 of file LegalizerInfo.h.

◆ unsupportedIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::unsupportedIf ( LegalityPredicate  Predicate)
inline

Definition at line 805 of file LegalizerInfo.h.

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo().

◆ unsupportedIfMemSizeNotPow2()

LegalizeRuleSet & llvm::LegalizeRuleSet::unsupportedIfMemSizeNotPow2 ( )
inline

Definition at line 813 of file LegalizerInfo.h.

References llvm::LegalityPredicates::memSizeInBytesNotPow2().

◆ verifyImmIdxsCoverage()

bool LegalizeRuleSet::verifyImmIdxsCoverage ( unsigned  NumImmIdxs) const

Check if there is no imm index which is obviously not handled by the LegalizeRuleSet in any way at all.

Precondition
Type indices of the opcode form a dense [0, NumTypeIdxs) set.

Definition at line 230 of file LegalizerInfo.cpp.

References llvm::dbgs(), llvm::SmallBitVector::find_first_unset(), and LLVM_DEBUG.

Referenced by llvm::LegalizerInfo::verify().

◆ verifyTypeIdxsCoverage()

bool LegalizeRuleSet::verifyTypeIdxsCoverage ( unsigned  NumTypeIdxs) const

Check if there is no type index which is obviously not handled by the LegalizeRuleSet in any way at all.

Precondition
Type indices of the opcode form a dense [0, NumTypeIdxs) set.

Definition at line 207 of file LegalizerInfo.cpp.

References llvm::dbgs(), llvm::SmallBitVector::find_first_unset(), and LLVM_DEBUG.

Referenced by llvm::LegalizerInfo::verify().

◆ widenScalarIf()

LegalizeRuleSet & llvm::LegalizeRuleSet::widenScalarIf ( LegalityPredicate  Predicate,
LegalizeMutation  Mutation 
)
inline

Widen the scalar to the one selected by the mutation if the predicate is true.

Definition at line 757 of file LegalizerInfo.h.

References Mutation.

Referenced by minScalarEltSameAsIf(), and minScalarSameAs().

◆ widenScalarOrEltToNextPow2()

LegalizeRuleSet & llvm::LegalizeRuleSet::widenScalarOrEltToNextPow2 ( unsigned  TypeIdx,
unsigned  MinSize = 0 
)
inline

Widen the scalar or vector element type to the next power of two that is at least MinSize.

No effect if the scalar size is a power of two.

Definition at line 897 of file LegalizerInfo.h.

References llvm::LegalizeMutations::widenScalarOrEltToNextPow2().

◆ widenScalarToNextMultipleOf()

LegalizeRuleSet & llvm::LegalizeRuleSet::widenScalarToNextMultipleOf ( unsigned  TypeIdx,
unsigned  Size 
)
inline

Widen the scalar to the next multiple of Size.

No effect if the type is not a scalar or is a multiple of Size.

Definition at line 887 of file LegalizerInfo.h.

References Size, and llvm::LegalizeMutations::widenScalarOrEltToNextMultipleOf().

Referenced by llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo().

◆ widenScalarToNextPow2()

LegalizeRuleSet & llvm::LegalizeRuleSet::widenScalarToNextPow2 ( unsigned  TypeIdx,
unsigned  MinSize = 0 
)
inline

Widen the scalar to the next power of two that is at least MinSize.

No effect if the type is not a scalar or is a power of two.

Definition at line 877 of file LegalizerInfo.h.

References llvm::LegalizeMutations::widenScalarOrEltToNextPow2().

Referenced by llvm::AArch64LegalizerInfo::AArch64LegalizerInfo(), llvm::AMDGPULegalizerInfo::AMDGPULegalizerInfo(), and llvm::M68kLegalizerInfo::M68kLegalizerInfo().

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