llvm::X86InstrFMA3Group Struct Reference

This class is used to group {132, 213, 231} forms of FMA opcodes together. More...

#include "Target/X86/X86InstrFMA3Info.h"

Public Types
enum	{ Form132 , Form213 , Form231 }
enum	: uint16_t { Intrinsic = 0x1 , KMergeMasked = 0x2 , KZeroMasked = 0x4 }

Public Member Functions
unsigned	get132Opcode () const
	Returns the 132 form of FMA opcode.
unsigned	get213Opcode () const
	Returns the 213 form of FMA opcode.
unsigned	get231Opcode () const
	Returns the 231 form of FMA opcode.
bool	isIntrinsic () const
	Returns true iff the group of FMA opcodes holds intrinsic opcodes.
bool	isKMergeMasked () const
	Returns true iff the group of FMA opcodes holds k-merge-masked opcodes.
bool	isKZeroMasked () const
	Returns true iff the group of FMA opcodes holds k-zero-masked opcodes.
bool	isKMasked () const
	Returns true iff the group of FMA opcodes holds any of k-masked opcodes.
bool	operator< (const X86InstrFMA3Group &RHS) const

Public Attributes
uint16_t	Opcodes [3]
	An array holding 3 forms of FMA opcodes.
uint16_t	Attributes
	This bitfield specifies the attributes associated with the created FMA groups of opcodes.

Detailed Description

This class is used to group {132, 213, 231} forms of FMA opcodes together.

Each of the groups has either 3 opcodes, Also, each group has an attributes field describing it.

Definition at line 24 of file X86InstrFMA3Info.h.

Member Enumeration Documentation

anonymous enum

anonymous enum : uint16_t

Enumerator
Intrinsic	This bit must be set in the 'Attributes' field of FMA group if such group of FMA opcodes consists of FMA intrinsic opcodes.
KMergeMasked	This bit must be set in the 'Attributes' field of FMA group if such group of FMA opcodes consists of AVX512 opcodes accepting a k-mask and passing the elements from the 1st operand to the result of the operation when the correpondings bits in the k-mask are unset.
KZeroMasked	This bit must be set in the 'Attributes' field of FMA group if such group of FMA opcodes consists of AVX512 opcodes accepting a k-zeromask.

Definition at line 38 of file X86InstrFMA3Info.h.

anonymous enum

anonymous enum

Enumerator
Form132
Form213
Form231

Definition at line 32 of file X86InstrFMA3Info.h.

Member Function Documentation

get132Opcode()

unsigned llvm::X86InstrFMA3Group::get132Opcode ( ) const

inline

Returns the 132 form of FMA opcode.

Definition at line 55 of file X86InstrFMA3Info.h.

References Form132, and Opcodes.

Referenced by llvm::X86InstrInfo::getFMA3OpcodeToCommuteOperands().

get213Opcode()

unsigned llvm::X86InstrFMA3Group::get213Opcode ( ) const

inline

Returns the 213 form of FMA opcode.

Definition at line 60 of file X86InstrFMA3Info.h.

References Form213, and Opcodes.

Referenced by llvm::X86InstrInfo::getFMA3OpcodeToCommuteOperands().

get231Opcode()

unsigned llvm::X86InstrFMA3Group::get231Opcode ( ) const

inline

Returns the 231 form of FMA opcode.

Definition at line 65 of file X86InstrFMA3Info.h.

References Form231, and Opcodes.

Referenced by llvm::X86InstrInfo::getFMA3OpcodeToCommuteOperands().

isIntrinsic()

bool llvm::X86InstrFMA3Group::isIntrinsic ( ) const

inline

Returns true iff the group of FMA opcodes holds intrinsic opcodes.

Definition at line 70 of file X86InstrFMA3Info.h.

References Attributes, and Intrinsic.

Referenced by llvm::X86InstrInfo::findCommutedOpIndices(), and llvm::X86InstrInfo::getFMA3OpcodeToCommuteOperands().

isKMasked()

bool llvm::X86InstrFMA3Group::isKMasked ( ) const

inline

Returns true iff the group of FMA opcodes holds any of k-masked opcodes.

Definition at line 81 of file X86InstrFMA3Info.h.

References Attributes, KMergeMasked, and KZeroMasked.

isKMergeMasked()

bool llvm::X86InstrFMA3Group::isKMergeMasked ( ) const

inline

Returns true iff the group of FMA opcodes holds k-merge-masked opcodes.

Definition at line 73 of file X86InstrFMA3Info.h.

References Attributes, and KMergeMasked.

isKZeroMasked()

bool llvm::X86InstrFMA3Group::isKZeroMasked ( ) const

inline

Returns true iff the group of FMA opcodes holds k-zero-masked opcodes.

Definition at line 78 of file X86InstrFMA3Info.h.

References Attributes, and KZeroMasked.

operator<()

bool llvm::X86InstrFMA3Group::operator< ( const X86InstrFMA3Group & RHS ) const

inline

Definition at line 85 of file X86InstrFMA3Info.h.

References Opcodes, and RHS.

Member Data Documentation

Attributes

uint16_t llvm::X86InstrFMA3Group::Attributes

This bitfield specifies the attributes associated with the created FMA groups of opcodes.

Definition at line 30 of file X86InstrFMA3Info.h.

Referenced by isIntrinsic(), isKMasked(), isKMergeMasked(), and isKZeroMasked().

Opcodes

uint16_t llvm::X86InstrFMA3Group::Opcodes[3]

An array holding 3 forms of FMA opcodes.

Definition at line 26 of file X86InstrFMA3Info.h.

Referenced by get132Opcode(), get213Opcode(), get231Opcode(), llvm::getFMA3Group(), and operator<().

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

• lib/Target/X86/X86InstrFMA3Info.h