llvm::MachineInstrExpressionTrait Struct Reference

Special DenseMapInfo traits to compare MachineInstr* by value of the instruction rather than by pointer value. More...

#include "llvm/CodeGen/MachineInstr.h"

Inheritance diagram for llvm::MachineInstrExpressionTrait:

Collaboration diagram for llvm::MachineInstrExpressionTrait:

Static Public Member Functions
static MachineInstr *	getEmptyKey ()
static MachineInstr *	getTombstoneKey ()
static unsigned	getHashValue (const MachineInstr *const &MI)
static bool	isEqual (const MachineInstr *const &LHS, const MachineInstr *const &RHS)

Detailed Description

Special DenseMapInfo traits to compare MachineInstr* by value of the instruction rather than by pointer value.

The hashing and equality testing functions ignore definitions so this is useful for CSE, etc.

Definition at line 1582 of file MachineInstr.h.

Member Function Documentation

getEmptyKey()

static MachineInstr* llvm::MachineInstrExpressionTrait::getEmptyKey ( )

inlinestatic

Definition at line 1583 of file MachineInstr.h.

getHashValue()

unsigned MachineInstrExpressionTrait::getHashValue ( const MachineInstr *const &  MI )

static

Definition at line 1950 of file MachineInstr.cpp.

References llvm::SmallVectorTemplateCommon< T >::begin(), llvm::SmallVectorTemplateCommon< T >::end(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOpcode(), llvm::hash_combine_range(), llvm::hash_value(), llvm::TargetRegisterInfo::isVirtualRegister(), llvm::MachineInstr::operands(), llvm::SmallVectorTemplateBase< T >::push_back(), and llvm::SmallVectorImpl< T >::reserve().

getTombstoneKey()

static MachineInstr* llvm::MachineInstrExpressionTrait::getTombstoneKey ( )

inlinestatic

Definition at line 1587 of file MachineInstr.h.

References MI.

isEqual()

static bool llvm::MachineInstrExpressionTrait::isEqual ( const MachineInstr *const &  LHS, const MachineInstr *const &  RHS  )

inlinestatic

Definition at line 1593 of file MachineInstr.h.

References llvm::MachineInstr::IgnoreVRegDefs, and llvm::MachineInstr::isIdenticalTo().

---

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

• include/llvm/CodeGen/MachineInstr.h
• lib/CodeGen/MachineInstr.cpp