AMDGPUISelDAGToDAG.cpp File Reference

Defines an instruction selector for the AMDGPU target. More...

#include "AMDGPUISelDAGToDAG.h"
#include "AMDGPU.h"
#include "AMDGPUInstrInfo.h"
#include "AMDGPUSubtarget.h"
#include "AMDGPUTargetMachine.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "MCTargetDesc/R600MCTargetDesc.h"
#include "R600RegisterInfo.h"
#include "SIISelLowering.h"
#include "SIMachineFunctionInfo.h"
#include "llvm/Analysis/UniformityAnalysis.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/IR/IntrinsicsAMDGPU.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/ErrorHandling.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "amdgpu-isel"

Functions
	INITIALIZE_PASS_BEGIN (AMDGPUDAGToDAGISelLegacy, "amdgpu-isel", "AMDGPU DAG->DAG Pattern Instruction Selection", false, false) INITIALIZE_PASS_END(AMDGPUDAGToDAGISelLegacy
static bool	getBaseWithOffsetUsingSplitOR (SelectionDAG &DAG, SDValue Addr, SDValue &N0, SDValue &N1)
static bool	isNoUnsignedWrap (SDValue Addr)
static bool	IsCopyFromSGPR (const SIRegisterInfo &TRI, SDValue Val)
static MemSDNode *	findMemSDNode (SDNode *N)
static SDValue	matchZExtFromI32 (SDValue Op)
static SDValue	SelectSAddrFI (SelectionDAG *CurDAG, SDValue SAddr)
static SDValue	combineBallotPattern (SDValue VCMP, bool &Negate)
static unsigned	gwsIntrinToOpcode (unsigned IntrID)
static MachineSDNode *	buildRegSequence32 (SmallVectorImpl< SDValue > &Elts, llvm::SelectionDAG *CurDAG, const SDLoc &DL)
static MachineSDNode *	buildRegSequence16 (SmallVectorImpl< SDValue > &Elts, llvm::SelectionDAG *CurDAG, const SDLoc &DL)
static MachineSDNode *	buildRegSequence (SmallVectorImpl< SDValue > &Elts, llvm::SelectionDAG *CurDAG, const SDLoc &DL, unsigned ElementSize)
static void	selectWMMAModsNegAbs (unsigned ModOpcode, unsigned &Mods, SmallVectorImpl< SDValue > &Elts, SDValue &Src, llvm::SelectionDAG *CurDAG, const SDLoc &DL, unsigned ElementSize)
static void	checkWMMAElementsModifiersF16 (BuildVectorSDNode *BV, std::function< bool(SDValue)> ModifierCheck)

Variables
amdgpu	isel
amdgpu AMDGPU DAG DAG Pattern Instruction	Selection
amdgpu AMDGPU DAG DAG Pattern Instruction	false

Detailed Description

Defines an instruction selector for the AMDGPU target.

Definition in file AMDGPUISelDAGToDAG.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "amdgpu-isel"

Definition at line 39 of file AMDGPUISelDAGToDAG.cpp.

Function Documentation

buildRegSequence()

static MachineSDNode * buildRegSequence ( SmallVectorImpl< SDValue > &  Elts, llvm::SelectionDAG *  CurDAG, const SDLoc &  DL, unsigned  ElementSize  )

static

Definition at line 3175 of file AMDGPUISelDAGToDAG.cpp.

References buildRegSequence16(), buildRegSequence32(), DL, and llvm_unreachable.

buildRegSequence16()

static MachineSDNode * buildRegSequence16 ( SmallVectorImpl< SDValue > &  Elts, llvm::SelectionDAG *  CurDAG, const SDLoc &  DL  )

static

Definition at line 3149 of file AMDGPUISelDAGToDAG.cpp.

References assert(), buildRegSequence32(), DL, llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getTargetConstant(), isExtractHiElt(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorBase< Size_T >::size().

Referenced by buildRegSequence().

buildRegSequence32()

static MachineSDNode * buildRegSequence32 ( SmallVectorImpl< SDValue > &  Elts, llvm::SelectionDAG *  CurDAG, const SDLoc &  DL  )

static

Definition at line 3117 of file AMDGPUISelDAGToDAG.cpp.

References DL, llvm::SelectionDAG::getMachineNode(), llvm::SIRegisterInfo::getSubRegFromChannel(), llvm::SelectionDAG::getTargetConstant(), llvm_unreachable, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorBase< Size_T >::size().

Referenced by buildRegSequence(), and buildRegSequence16().

checkWMMAElementsModifiersF16()

static void checkWMMAElementsModifiersF16 ( BuildVectorSDNode *  BV, std::function< bool(SDValue)>  ModifierCheck  )

static

Definition at line 3217 of file AMDGPUISelDAGToDAG.cpp.

References llvm::SDNode::getNumOperands(), and llvm::SDNode::getOperand().

combineBallotPattern()

static SDValue combineBallotPattern ( SDValue  VCMP, bool &  Negate  )

static

Definition at line 2405 of file AMDGPUISelDAGToDAG.cpp.

References assert(), Cond, llvm::isBoolSGPR(), llvm::ISD::isExtOpcode(), llvm::isNullConstant(), llvm::AMDGPUISD::SETCC, llvm::ISD::SETEQ, and llvm::ISD::SETNE.

findMemSDNode()

static MemSDNode * findMemSDNode ( SDNode *  N )

static

Definition at line 1628 of file AMDGPUISelDAGToDAG.cpp.

References assert(), llvm::SDValue::getNode(), llvm_unreachable, N, and llvm::AMDGPUTargetLowering::stripBitcast().

getBaseWithOffsetUsingSplitOR()

static bool getBaseWithOffsetUsingSplitOR ( SelectionDAG &  DAG, SDValue  Addr, SDValue &  N0, SDValue &  N1  )

static

Definition at line 731 of file AMDGPUISelDAGToDAG.cpp.

References Addr, llvm::ISD::BITCAST, llvm::ISD::BUILD_VECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::SDValue::getConstantOperandVal(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SelectionDAG::isBaseWithConstantOffset(), llvm::Lo, and llvm::ISD::OR.

gwsIntrinToOpcode()

static unsigned gwsIntrinToOpcode ( unsigned  IntrID )

static

Definition at line 2587 of file AMDGPUISelDAGToDAG.cpp.

References llvm_unreachable.

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	AMDGPUDAGToDAGISelLegacy	,
		"amdgpu-isel"	,
		"AMDGPU DAG->DAG Pattern Instruction Selection"	,
		false	,
		false
	)

IsCopyFromSGPR()

static bool IsCopyFromSGPR ( const SIRegisterInfo &  TRI, SDValue  Val  )

static

Definition at line 1536 of file AMDGPUISelDAGToDAG.cpp.

References llvm::ISD::CopyFromReg, llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), and TRI.

isNoUnsignedWrap()

static bool isNoUnsignedWrap ( SDValue  Addr )

static

Definition at line 1171 of file AMDGPUISelDAGToDAG.cpp.

References llvm::ISD::ADD, Addr, and llvm::ISD::OR.

matchZExtFromI32()

static SDValue matchZExtFromI32 ( SDValue  Op )

static

Definition at line 1755 of file AMDGPUISelDAGToDAG.cpp.

References llvm::SDValue::getValueType(), and llvm::ISD::ZERO_EXTEND.

SelectSAddrFI()

static SDValue SelectSAddrFI ( SelectionDAG *  CurDAG, SDValue  SAddr  )

static

Definition at line 1859 of file AMDGPUISelDAGToDAG.cpp.

References llvm::ISD::ADD, llvm::SelectionDAG::getMachineNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), and llvm::SelectionDAG::getTargetFrameIndex().

selectWMMAModsNegAbs()

static void selectWMMAModsNegAbs ( unsigned  ModOpcode, unsigned &  Mods, SmallVectorImpl< SDValue > &  Elts, SDValue &  Src, llvm::SelectionDAG *  CurDAG, const SDLoc &  DL, unsigned  ElementSize  )

static

Definition at line 3185 of file AMDGPUISelDAGToDAG.cpp.

References assert(), buildRegSequence(), DL, llvm::ISD::FABS, llvm::ISD::FNEG, llvm::SISrcMods::NEG, llvm::SISrcMods::NEG_HI, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorBase< Size_T >::size().

Variable Documentation

false

amdgpu AMDGPU DAG DAG Pattern Instruction false

Definition at line 112 of file AMDGPUISelDAGToDAG.cpp.

isel

amdgpu isel

Definition at line 111 of file AMDGPUISelDAGToDAG.cpp.

Selection

amdgpu AMDGPU DAG DAG Pattern Instruction Selection

Definition at line 112 of file AMDGPUISelDAGToDAG.cpp.

Referenced by llvm::logicalview::LVPatterns::addRequest(), llvm::MCContext::getCOFFSection(), llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), llvm::ReservoirSampler< T, GenT >::getSelection(), llvm::MCSectionCOFF::getSelection(), llvm::ReservoirSampler< T, GenT >::sample(), llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal(), and llvm::MCSectionCOFF::setSelection().