llvm::MachineInstrExpressionTrait Struct Reference

#include <MachineInstr.h>

Inheritance diagram for llvm::MachineInstrExpressionTrait:

Collaboration diagram for llvm::MachineInstrExpressionTrait:

List of all members.

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

MachineInstrExpressionTrait - 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 1197 of file MachineInstr.h.

---

Member Function Documentation

static MachineInstr* llvm::MachineInstrExpressionTrait::getEmptyKey

(

)

[inline, static]

Definition at line 1198 of file MachineInstr.h.

Referenced by isEqual().

unsigned MachineInstrExpressionTrait::getHashValue

(

const MachineInstr *const &

MI

)

[static]

Definition at line 1917 of file MachineInstr.cpp.

References llvm::SmallVectorTemplateCommon< T >::begin(), llvm::SmallVectorTemplateCommon< T >::end(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::hash_combine_range(), llvm::MachineOperand::hash_value, llvm::MachineOperand::isDef(), llvm::MachineOperand::isReg(), llvm::TargetRegisterInfo::isVirtualRegister(), llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back(), and llvm::SmallVectorImpl< T >::reserve().

static MachineInstr* llvm::MachineInstrExpressionTrait::getTombstoneKey

(

)

[inline, static]

Definition at line 1202 of file MachineInstr.h.

Referenced by isEqual().

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

Definition at line 1208 of file MachineInstr.h.

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

---

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

• MachineInstr.h
• MachineInstr.cpp