class LegalizeRule

Declaration

class LegalizeRule { /* full declaration omitted */ };

Description

A single rule in a legalizer info ruleset. The specified action is chosen when the predicate is true. Where appropriate for the action (e.g. for WidenScalar) the new type is selected using the given mutator.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/LegalizerInfo.h:393

Member Variables

private llvm::LegalityPredicate Predicate

private llvm::LegalizeActions::LegalizeAction Action

private llvm::LegalizeMutation Mutation

Method Overview

• public LegalizeRule(llvm::LegalityPredicate Predicate, llvm::LegalizeActions::LegalizeAction Action, llvm::LegalizeMutation Mutation = nullptr)
• public std::pair<unsigned int, LLT> determineMutation(const llvm::LegalityQuery & Query) const
• public llvm::LegalizeActions::LegalizeAction getAction() const
• public bool match(const llvm::LegalityQuery & Query) const

Methods

¶LegalizeRule(
    llvm::LegalityPredicate Predicate,
    llvm::LegalizeActions::LegalizeAction Action,
    llvm::LegalizeMutation Mutation = nullptr)

Declared at: llvm/include/llvm/CodeGen/GlobalISel/LegalizerInfo.h:399

Parameters

llvm::LegalityPredicate Predicate

llvm::LegalizeActions::LegalizeAction Action

llvm::LegalizeMutation Mutation = nullptr

¶std::pair<unsigned int, LLT> determineMutation(
    const llvm::LegalityQuery& Query) const

Description

Determine the change to make.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/LegalizerInfo.h:411

Parameters

const llvm::LegalityQuery& Query

¶llvm::LegalizeActions::LegalizeAction getAction()
    const

Declared at: llvm/include/llvm/CodeGen/GlobalISel/LegalizerInfo.h:408

¶bool match(const llvm::LegalityQuery& Query) const

Description

Test whether the LegalityQuery matches.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/LegalizerInfo.h:404

Parameters

const llvm::LegalityQuery& Query