SIISelLowering.cpp File Reference

Custom DAG lowering for SI. More...

#include "SIISelLowering.h"
#include "AMDGPU.h"
#include "AMDGPUInstrInfo.h"
#include "AMDGPULaneMaskUtils.h"
#include "AMDGPUSelectionDAGInfo.h"
#include "AMDGPUTargetMachine.h"
#include "GCNSubtarget.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "SIMachineFunctionInfo.h"
#include "SIRegisterInfo.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/FloatingPointMode.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/UniformityAnalysis.h"
#include "llvm/CodeGen/Analysis.h"
#include "llvm/CodeGen/ByteProvider.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/GlobalISel/GISelValueTracking.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/CodeGen/GlobalISel/MIPatternMatch.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/MachinePassManager.h"
#include "llvm/CodeGen/PseudoSourceValueManager.h"
#include "llvm/CodeGen/SDPatternMatch.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/IntrinsicsAMDGPU.h"
#include "llvm/IR/IntrinsicsR600.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/KnownBits.h"
#include "llvm/Support/ModRef.h"
#include "llvm/Transforms/Utils/LowerAtomic.h"
#include <optional>

Go to the source code of this file.

Classes
struct	DotSrc

Macros
#define	DEBUG_TYPE   "si-lower"

Functions
	STATISTIC (NumTailCalls, "Number of tail calls")
static bool	denormalModeIsFlushAllF32 (const MachineFunction &MF)
static bool	denormalModeIsFlushAllF64F16 (const MachineFunction &MF)
static unsigned	findFirstFreeSGPR (CCState &CCInfo)
static EVT	memVTFromLoadIntrData (const SITargetLowering &TLI, const DataLayout &DL, Type *Ty, unsigned MaxNumLanes)
static EVT	memVTFromLoadIntrReturn (const SITargetLowering &TLI, const DataLayout &DL, Type *Ty, unsigned MaxNumLanes)
static unsigned	getIntrMemWidth (unsigned IntrID)
static void	getCoopAtomicOperandsInfo (const CallBase &CI, bool IsLoad, TargetLoweringBase::IntrinsicInfo &Info)
static void	processPSInputArgs (SmallVectorImpl< ISD::InputArg > &Splits, CallingConv::ID CallConv, ArrayRef< ISD::InputArg > Ins, BitVector &Skipped, FunctionType *FType, SIMachineFunctionInfo *Info)
static ArgDescriptor	allocateVGPR32Input (CCState &CCInfo, unsigned Mask=~0u, ArgDescriptor Arg=ArgDescriptor())
static ArgDescriptor	allocateSGPR32InputImpl (CCState &CCInfo, const TargetRegisterClass *RC, unsigned NumArgRegs)
static void	allocateFixedSGPRInputImpl (CCState &CCInfo, const TargetRegisterClass *RC, MCRegister Reg)
static void	allocateSGPR32Input (CCState &CCInfo, ArgDescriptor &Arg)
static void	allocateSGPR64Input (CCState &CCInfo, ArgDescriptor &Arg)
static void	reservePrivateMemoryRegs (const TargetMachine &TM, MachineFunction &MF, const SIRegisterInfo &TRI, SIMachineFunctionInfo &Info)
static std::pair< MachineBasicBlock *, MachineBasicBlock * >	splitBlockForLoop (MachineInstr &MI, MachineBasicBlock &MBB, bool InstInLoop)
static MachineBasicBlock::iterator	emitLoadM0FromVGPRLoop (const SIInstrInfo *TII, MachineRegisterInfo &MRI, MachineBasicBlock &OrigBB, MachineBasicBlock &LoopBB, const DebugLoc &DL, const MachineOperand &Idx, unsigned InitReg, unsigned ResultReg, unsigned PhiReg, unsigned InitSaveExecReg, int Offset, bool UseGPRIdxMode, Register &SGPRIdxReg)
static MachineBasicBlock::iterator	loadM0FromVGPR (const SIInstrInfo *TII, MachineBasicBlock &MBB, MachineInstr &MI, unsigned InitResultReg, unsigned PhiReg, int Offset, bool UseGPRIdxMode, Register &SGPRIdxReg)
static std::pair< unsigned, int >	computeIndirectRegAndOffset (const SIRegisterInfo &TRI, const TargetRegisterClass *SuperRC, unsigned VecReg, int Offset)
static void	setM0ToIndexFromSGPR (const SIInstrInfo *TII, MachineRegisterInfo &MRI, MachineInstr &MI, int Offset)
static Register	getIndirectSGPRIdx (const SIInstrInfo *TII, MachineRegisterInfo &MRI, MachineInstr &MI, int Offset)
static MachineBasicBlock *	emitIndirectSrc (MachineInstr &MI, MachineBasicBlock &MBB, const GCNSubtarget &ST)
static MachineBasicBlock *	emitIndirectDst (MachineInstr &MI, MachineBasicBlock &MBB, const GCNSubtarget &ST)
static MachineBasicBlock *	Expand64BitScalarArithmetic (MachineInstr &MI, MachineBasicBlock *BB)
static uint32_t	getIdentityValueFor32BitWaveReduction (unsigned Opc)
static uint64_t	getIdentityValueFor64BitWaveReduction (unsigned Opc)
static bool	is32bitWaveReduceOperation (unsigned Opc)
static bool	isFloatingPointWaveReduceOperation (unsigned Opc)
static MachineBasicBlock *	lowerWaveReduce (MachineInstr &MI, MachineBasicBlock &BB, const GCNSubtarget &ST, unsigned Opc)
static SDValue	adjustLoadValueTypeImpl (SDValue Result, EVT LoadVT, const SDLoc &DL, SelectionDAG &DAG, bool Unpacked)
static SDValue	lowerICMPIntrinsic (const SITargetLowering &TLI, SDNode *N, SelectionDAG &DAG)
static SDValue	lowerFCMPIntrinsic (const SITargetLowering &TLI, SDNode *N, SelectionDAG &DAG)
static SDValue	lowerBALLOTIntrinsic (const SITargetLowering &TLI, SDNode *N, SelectionDAG &DAG)
static SDValue	lowerLaneOp (const SITargetLowering &TLI, SDNode *N, SelectionDAG &DAG)
static SDNode *	findUser (SDValue Value, unsigned Opcode)
	Helper function for LowerBRCOND.
static unsigned	getExtOpcodeForPromotedOp (SDValue Op)
static bool	isKnownNonNull (SDValue Val, SelectionDAG &DAG, const AMDGPUTargetMachine &TM, unsigned AddrSpace)
	Return true if the value is a known valid address, such that a null check is not necessary.
static bool	elementPairIsContiguous (ArrayRef< int > Mask, int Elt)
static bool	elementPairIsOddToEven (ArrayRef< int > Mask, int Elt)
static SDValue	buildPCRelGlobalAddress (SelectionDAG &DAG, const GlobalValue *GV, const SDLoc &DL, int64_t Offset, EVT PtrVT, unsigned GAFlags=SIInstrInfo::MO_NONE)
static SDValue	emitNonHSAIntrinsicError (SelectionDAG &DAG, const SDLoc &DL, EVT VT)
static SDValue	emitRemovedIntrinsicError (SelectionDAG &DAG, const SDLoc &DL, EVT VT)
static SDValue	getBuildDwordsVector (SelectionDAG &DAG, SDLoc DL, ArrayRef< SDValue > Elts)
static SDValue	padEltsToUndef (SelectionDAG &DAG, const SDLoc &DL, EVT CastVT, SDValue Src, int ExtraElts)
static SDValue	constructRetValue (SelectionDAG &DAG, MachineSDNode *Result, ArrayRef< EVT > ResultTypes, bool IsTexFail, bool Unpacked, bool IsD16, int DMaskPop, int NumVDataDwords, bool IsAtomicPacked16Bit, const SDLoc &DL)
static bool	parseTexFail (SDValue TexFailCtrl, SelectionDAG &DAG, SDValue *TFE, SDValue *LWE, bool &IsTexFail)
static void	packImage16bitOpsToDwords (SelectionDAG &DAG, SDValue Op, MVT PackVectorVT, SmallVectorImpl< SDValue > &PackedAddrs, unsigned DimIdx, unsigned EndIdx, unsigned NumGradients)
static SDValue	selectSOffset (SDValue SOffset, SelectionDAG &DAG, const GCNSubtarget *Subtarget)
static bool	isNoUnsignedWrap (SDValue Addr)
static SDValue	getLoadExtOrTrunc (SelectionDAG &DAG, ISD::LoadExtType ExtType, SDValue Op, const SDLoc &SL, EVT VT)
static bool	addressMayBeAccessedAsPrivate (const MachineMemOperand *MMO, const SIMachineFunctionInfo &Info)
static SDValue	getFPBinOp (SelectionDAG &DAG, unsigned Opcode, const SDLoc &SL, EVT VT, SDValue A, SDValue B, SDValue GlueChain, SDNodeFlags Flags)
static SDValue	getFPTernOp (SelectionDAG &DAG, unsigned Opcode, const SDLoc &SL, EVT VT, SDValue A, SDValue B, SDValue C, SDValue GlueChain, SDNodeFlags Flags)
static SDValue	getSPDenormModeValue (uint32_t SPDenormMode, SelectionDAG &DAG, const SIMachineFunctionInfo *Info, const GCNSubtarget *ST)
static unsigned	getBasePtrIndex (const MemSDNode *N)
	MemSDNode::getBasePtr() does not work for intrinsics, which needs to offset by the chain and intrinsic ID.
static bool	bitOpWithConstantIsReducible (unsigned Opc, uint32_t Val)
static uint32_t	getConstantPermuteMask (uint32_t C)
static uint32_t	getPermuteMask (SDValue V)
static const std::optional< ByteProvider< SDValue > >	calculateSrcByte (const SDValue Op, uint64_t DestByte, uint64_t SrcIndex=0, unsigned Depth=0)
static const std::optional< ByteProvider< SDValue > >	calculateByteProvider (const SDValue &Op, unsigned Index, unsigned Depth, unsigned StartingIndex=0)
static bool	isExtendedFrom16Bits (SDValue &Operand)
static bool	addresses16Bits (int Mask)
static bool	hasNon16BitAccesses (uint64_t PermMask, SDValue &Op, SDValue &OtherOp)
static SDValue	getDWordFromOffset (SelectionDAG &DAG, SDLoc SL, SDValue Src, unsigned DWordOffset)
static SDValue	matchPERM (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static bool	vectorEltWillFoldAway (SDValue Op)
static unsigned	minMaxOpcToMin3Max3Opc (unsigned Opc)
static ConstantFPSDNode *	getSplatConstantFP (SDValue Op)
static bool	supportsMin3Max3 (const GCNSubtarget &Subtarget, unsigned Opc, EVT VT)
static bool	isClampZeroToOne (SDValue A, SDValue B)
static SDValue	strictFPExtFromF16 (SelectionDAG &DAG, SDValue Src)
	Return the source of an fp_extend from f16 to f32, or a converted FP constant.
static SDValue	getMad64_32 (SelectionDAG &DAG, const SDLoc &SL, EVT VT, SDValue N0, SDValue N1, SDValue N2, bool Signed)
static SDValue	tryFoldMADwithSRL (SelectionDAG &DAG, const SDLoc &SL, SDValue MulLHS, SDValue MulRHS, SDValue AddRHS)
static std::optional< ByteProvider< SDValue > >	handleMulOperand (const SDValue &MulOperand)
static unsigned	addPermMasks (unsigned First, unsigned Second)
static void	placeSources (ByteProvider< SDValue > &Src0, ByteProvider< SDValue > &Src1, SmallVectorImpl< DotSrc > &Src0s, SmallVectorImpl< DotSrc > &Src1s, int Step)
static SDValue	resolveSources (SelectionDAG &DAG, SDLoc SL, SmallVectorImpl< DotSrc > &Srcs, bool IsSigned, bool IsAny)
static void	fixMasks (SmallVectorImpl< DotSrc > &Srcs, unsigned ChainLength)
static bool	isMul (const SDValue Op)
static std::optional< bool >	checkDot4MulSignedness (const SDValue &N, ByteProvider< SDValue > &Src0, ByteProvider< SDValue > &Src1, const SDValue &S0Op, const SDValue &S1Op, const SelectionDAG &DAG)
static unsigned	SubIdx2Lane (unsigned Idx)
	Helper function for adjustWritemask.
static bool	isFrameIndexOp (SDValue Op)
static SDValue	buildSMovImm32 (SelectionDAG &DAG, const SDLoc &DL, uint64_t Val)
static bool	isImmConstraint (StringRef Constraint)
static uint64_t	clearUnusedBits (uint64_t Val, unsigned Size)
static int	getAlignedAGPRClassID (unsigned UnalignedClassID)
static void	knownBitsForWorkitemID (const GCNSubtarget &ST, GISelValueTracking &VT, KnownBits &Known, unsigned Dim)
static void	knownBitsForSBFE (const MachineInstr &MI, GISelValueTracking &VT, KnownBits &Known, const APInt &DemandedElts, unsigned BFEWidth, bool SExt, unsigned Depth)
static bool	isCopyFromRegOfInlineAsm (const SDNode *N)
static bool	atomicIgnoresDenormalModeOrFPModeIsFTZ (const AtomicRMWInst *RMW)
static OptimizationRemark	emitAtomicRMWLegalRemark (const AtomicRMWInst *RMW)
static bool	isV2F16OrV2BF16 (Type *Ty)
static bool	isV2F16 (Type *Ty)
static bool	isV2BF16 (Type *Ty)
static bool	isAtomicRMWLegalIntTy (Type *Ty)
static bool	isAtomicRMWLegalXChgTy (const AtomicRMWInst *RMW)
static bool	globalMemoryFPAtomicIsLegal (const GCNSubtarget &Subtarget, const AtomicRMWInst *RMW, bool HasSystemScope)
static TargetLowering::AtomicExpansionKind	atomicSupportedIfLegalIntType (const AtomicRMWInst *RMW)
static bool	flatInstrMayAccessPrivate (const Instruction *I)
	Return if a flat address space atomicrmw can access private memory.
static TargetLowering::AtomicExpansionKind	getPrivateAtomicExpansionKind (const GCNSubtarget &STI)
static bool	hasCFUser (const Value *V, SmallPtrSet< const Value *, 16 > &Visited, unsigned WaveSize)
static void	convertScratchAtomicToFlatAtomic (Instruction *I, unsigned PtrOpIdx)

Variables
static cl::opt< bool >	DisableLoopAlignment ("amdgpu-disable-loop-alignment", cl::desc("Do not align and prefetch loops"), cl::init(false))
static cl::opt< bool >	UseDivergentRegisterIndexing ("amdgpu-use-divergent-register-indexing", cl::Hidden, cl::desc("Use indirect register addressing for divergent indexes"), cl::init(false))

Detailed Description

Custom DAG lowering for SI.

Definition in file SIISelLowering.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "si-lower"

Definition at line 56 of file SIISelLowering.cpp.

Function Documentation

addPermMasks()

unsigned addPermMasks ( unsigned First, unsigned Second )

static

Definition at line 15818 of file SIISelLowering.cpp.

References assert(), and llvm::First.

Referenced by placeSources(), and resolveSources().

addresses16Bits()

bool addresses16Bits ( int Mask )

static

Definition at line 13906 of file SIISelLowering.cpp.

References assert().

Referenced by hasNon16BitAccesses().

addressMayBeAccessedAsPrivate()

bool addressMayBeAccessedAsPrivate ( const MachineMemOperand * MMO, const SIMachineFunctionInfo & Info )

static

Definition at line 11957 of file SIISelLowering.cpp.

References Info.

adjustLoadValueTypeImpl()

SDValue adjustLoadValueTypeImpl ( SDValue Result, EVT LoadVT, const SDLoc & DL, SelectionDAG & DAG, bool Unpacked )

static

Definition at line 6954 of file SIISelLowering.cpp.

References llvm::EVT::changeTypeToInteger(), DL, llvm::SelectionDAG::ExtractVectorElements(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getPOISON(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::EVT::isVector(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::ISD::TRUNCATE.

Referenced by constructRetValue().

allocateFixedSGPRInputImpl()

void allocateFixedSGPRInputImpl ( CCState & CCInfo, const TargetRegisterClass * RC, MCRegister Reg )

static

Definition at line 2785 of file SIISelLowering.cpp.

References llvm::MachineFunction::addLiveIn(), llvm::CCState::AllocateReg(), assert(), llvm::CCState::getMachineFunction(), and Reg.

Referenced by allocateSGPR32Input(), and allocateSGPR64Input().

allocateSGPR32Input()

void allocateSGPR32Input ( CCState & CCInfo, ArgDescriptor & Arg )

static

Definition at line 2794 of file SIISelLowering.cpp.

References allocateFixedSGPRInputImpl(), allocateSGPR32InputImpl(), and llvm::ArgDescriptor::getRegister().

Referenced by llvm::SITargetLowering::allocateSpecialInputSGPRs().

allocateSGPR32InputImpl()

ArgDescriptor allocateSGPR32InputImpl ( CCState & CCInfo, const TargetRegisterClass * RC, unsigned NumArgRegs )

static

Definition at line 2765 of file SIISelLowering.cpp.

References llvm::MachineFunction::addLiveIn(), llvm::CCState::AllocateReg(), llvm::ArrayRef(), assert(), llvm::TargetRegisterClass::begin(), llvm::ArgDescriptor::createRegister(), llvm::CCState::getFirstUnallocated(), llvm::CCState::getMachineFunction(), Reg, llvm::report_fatal_error(), and llvm::ArrayRef< T >::size().

Referenced by allocateSGPR32Input(), and allocateSGPR64Input().

allocateSGPR64Input()

void allocateSGPR64Input ( CCState & CCInfo, ArgDescriptor & Arg )

static

Definition at line 2802 of file SIISelLowering.cpp.

References allocateFixedSGPRInputImpl(), allocateSGPR32InputImpl(), and llvm::ArgDescriptor::getRegister().

Referenced by llvm::SITargetLowering::allocateSpecialInputSGPRs().

allocateVGPR32Input()

ArgDescriptor allocateVGPR32Input ( CCState & CCInfo, unsigned Mask = ~0u, ArgDescriptor Arg = ArgDescriptor() )

static

Definition at line 2741 of file SIISelLowering.cpp.

References llvm::MachineFunction::addLiveIn(), llvm::CCState::AllocateReg(), llvm::CCState::AllocateStack(), llvm::ArrayRef(), assert(), llvm::ArgDescriptor::createArg(), llvm::ArgDescriptor::createRegister(), llvm::ArgDescriptor::createStack(), llvm::CCState::getFirstUnallocated(), llvm::CCState::getMachineFunction(), llvm::MachineFunction::getRegInfo(), llvm::Offset, Reg, llvm::LLT::scalar(), llvm::MachineRegisterInfo::setType(), and llvm::ArrayRef< T >::size().

Referenced by llvm::SITargetLowering::allocateSpecialInputVGPRs().

atomicIgnoresDenormalModeOrFPModeIsFTZ()

bool atomicIgnoresDenormalModeOrFPModeIsFTZ ( const AtomicRMWInst * RMW )

static

Definition at line 18470 of file SIISelLowering.cpp.

References llvm::Function::getDenormalMode(), llvm::Type::getFltSemantics(), llvm::Function::getFnAttribute(), llvm::Instruction::getFunction(), llvm::DenormalMode::getPreserveSign(), llvm::Type::getScalarType(), llvm::Value::getType(), llvm::Attribute::getValueAsBool(), and llvm::Instruction::hasMetadata().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

atomicSupportedIfLegalIntType()

TargetLowering::AtomicExpansionKind atomicSupportedIfLegalIntType ( const AtomicRMWInst * RMW )

static

Returns

Action to perform on AtomicRMWInsts for integer operations.

Definition at line 18574 of file SIISelLowering.cpp.

References llvm::TargetLoweringBase::CmpXChg, llvm::Value::getType(), isAtomicRMWLegalIntTy(), and llvm::TargetLoweringBase::None.

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

bitOpWithConstantIsReducible()

bool bitOpWithConstantIsReducible ( unsigned Opc, uint32_t Val )

static

Definition at line 13185 of file SIISelLowering.cpp.

References llvm::ISD::AND, Opc, llvm::ISD::OR, and llvm::ISD::XOR.

buildPCRelGlobalAddress()

SDValue buildPCRelGlobalAddress ( SelectionDAG & DAG, const GlobalValue * GV, const SDLoc & DL, int64_t Offset, EVT PtrVT, unsigned GAFlags = SIInstrInfo::MO_NONE )

static

Definition at line 8907 of file SIISelLowering.cpp.

References assert(), DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSubtarget(), llvm::SelectionDAG::getTargetConstant(), llvm::SelectionDAG::getTargetGlobalAddress(), llvm::isInt(), llvm::SIInstrInfo::MO_NONE, and llvm::Offset.

buildSMovImm32()

SDValue buildSMovImm32 ( SelectionDAG & DAG, const SDLoc & DL, uint64_t Val )

static

Definition at line 17598 of file SIISelLowering.cpp.

References DL, llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getTargetConstant(), and SDValue().

Referenced by llvm::SITargetLowering::buildRSRC(), and llvm::SITargetLowering::wrapAddr64Rsrc().

calculateByteProvider()

const std::optional< ByteProvider< SDValue > > calculateByteProvider ( const SDValue & Op, unsigned Index, unsigned Depth, unsigned StartingIndex = 0 )

static

Definition at line 13616 of file SIISelLowering.cpp.

References llvm::ISD::AND, llvm::ISD::ANY_EXTEND, llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::BitWidth, llvm::ISD::BSWAP, calculateByteProvider(), calculateSrcByte(), llvm::cast(), llvm::ISD::CopyFromReg, llvm::Depth, llvm::dyn_cast(), llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FSHR, llvm::ByteProvider< ISelOp >::getConstantZero(), llvm::SDValue::getValueSizeInBits(), LHS, llvm_unreachable, llvm::ISD::OR, RHS, llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::TRUNCATE, llvm::ISD::ZERO_EXTEND, and llvm::ISD::ZEXTLOAD.

calculateSrcByte()

const std::optional< ByteProvider< SDValue > > calculateSrcByte ( const SDValue Op, uint64_t DestByte, uint64_t SrcIndex = 0, unsigned Depth = 0 )

static

Definition at line 13551 of file SIISelLowering.cpp.

References calculateSrcByte(), llvm::cast(), llvm::Depth, llvm::dyn_cast(), llvm::ByteProvider< ISelOp >::getSrc(), llvm::EVT::getStoreSize(), llvm::SDValue::getValueType(), llvm::EVT::isByteSized(), llvm_unreachable, llvm::ISD::SIGN_EXTEND, llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::TRUNCATE, and llvm::ISD::ZERO_EXTEND.

Referenced by calculateByteProvider(), and calculateSrcByte().

checkDot4MulSignedness()

std::optional< bool > checkDot4MulSignedness ( const SDValue & N, ByteProvider< SDValue > & Src0, ByteProvider< SDValue > & Src1, const SDValue & S0Op, const SDValue & S1Op, const SelectionDAG & DAG )

static

Definition at line 15998 of file SIISelLowering.cpp.

References assert(), llvm::SelectionDAG::computeKnownBits(), llvm::KnownBits::countMinLeadingZeros(), llvm::SDValue::getValueSizeInBits(), llvm_unreachable, and N.

clearUnusedBits()

uint64_t clearUnusedBits ( uint64_t Val, unsigned Size )

static

Definition at line 17851 of file SIISelLowering.cpp.

References llvm::AMDGPU::isInlinableIntLiteral(), llvm::maskTrailingOnes(), and Size.

Referenced by llvm::APInt::APInt(), llvm::APInt::ashrInPlace(), llvm::SITargetLowering::checkAsmConstraintVal(), llvm::APInt::flipAllBits(), llvm::SITargetLowering::LowerAsmOperandForConstraint(), llvm::APInt::operator<<=(), llvm::APInt::operator=(), llvm::APInt::operator^=(), llvm::APInt::operator|=(), and llvm::APInt::setAllBits().

computeIndirectRegAndOffset()

std::pair< unsigned, int > computeIndirectRegAndOffset ( const SIRegisterInfo & TRI, const TargetRegisterClass * SuperRC, unsigned VecReg, int Offset )

static

Definition at line 5194 of file SIISelLowering.cpp.

References llvm::SIRegisterInfo::getSubRegFromChannel(), llvm::Offset, and TRI.

Referenced by emitIndirectDst(), and emitIndirectSrc().

constructRetValue()

SDValue constructRetValue ( SelectionDAG & DAG, MachineSDNode * Result, ArrayRef< EVT > ResultTypes, bool IsTexFail, bool Unpacked, bool IsD16, int DMaskPop, int NumVDataDwords, bool IsAtomicPacked16Bit, const SDLoc & DL )

static

Definition at line 9123 of file SIISelLowering.cpp.

References adjustLoadValueTypeImpl(), llvm::EVT::changeTypeToInteger(), llvm::Data, DL, llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getMergeValues(), llvm::SelectionDAG::getNode(), llvm::EVT::getSizeInBits(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::MVT::getVectorVT(), llvm::EVT::isVector(), llvm::MVT::isVector(), padEltsToUndef(), SDValue(), and llvm::ISD::TRUNCATE.

convertScratchAtomicToFlatAtomic()

void convertScratchAtomicToFlatAtomic ( Instruction * I, unsigned PtrOpIdx )

static

Definition at line 19245 of file SIISelLowering.cpp.

References assert(), llvm::CastInst::CreatePointerCast(), llvm::AMDGPUAS::FLAT_ADDRESS, llvm::PointerType::get(), llvm::Type::getPointerAddressSpace(), llvm::Value::getType(), I, and llvm::AMDGPUAS::PRIVATE_ADDRESS.

Referenced by llvm::SITargetLowering::emitExpandAtomicCmpXchg(), llvm::SITargetLowering::emitExpandAtomicLoad(), llvm::SITargetLowering::emitExpandAtomicRMW(), and llvm::SITargetLowering::emitExpandAtomicStore().

denormalModeIsFlushAllF32()

bool denormalModeIsFlushAllF32 ( const MachineFunction & MF )

static

Definition at line 70 of file SIISelLowering.cpp.

References llvm::MachineFunction::getInfo(), llvm::DenormalMode::getPreserveSign(), and Info.

Referenced by llvm::SITargetLowering::denormalsEnabledForType(), llvm::SITargetLowering::denormalsEnabledForType(), llvm::SITargetLowering::isFMADLegal(), llvm::SITargetLowering::isFMADLegal(), llvm::SITargetLowering::isFMAFasterThanFMulAndFAdd(), llvm::SITargetLowering::isFPExtFoldable(), and llvm::SITargetLowering::isFPExtFoldable().

denormalModeIsFlushAllF64F16()

bool denormalModeIsFlushAllF64F16 ( const MachineFunction & MF )

static

Definition at line 75 of file SIISelLowering.cpp.

References llvm::MachineFunction::getInfo(), llvm::DenormalMode::getPreserveSign(), and Info.

Referenced by llvm::SITargetLowering::denormalsEnabledForType(), llvm::SITargetLowering::denormalsEnabledForType(), llvm::SITargetLowering::isFMADLegal(), llvm::SITargetLowering::isFMADLegal(), and llvm::SITargetLowering::isFMAFasterThanFMulAndFAdd().

elementPairIsContiguous()

bool elementPairIsContiguous ( ArrayRef< int > Mask, int Elt )

static

Definition at line 8689 of file SIISelLowering.cpp.

References assert().

elementPairIsOddToEven()

bool elementPairIsOddToEven ( ArrayRef< int > Mask, int Elt )

static

Definition at line 8694 of file SIISelLowering.cpp.

References assert().

emitAtomicRMWLegalRemark()

OptimizationRemark emitAtomicRMWLegalRemark ( const AtomicRMWInst * RMW )

static

Definition at line 18485 of file SIISelLowering.cpp.

References DEBUG_TYPE, llvm::Value::getContext(), llvm::AtomicRMWInst::getOperation(), llvm::AtomicRMWInst::getOperationName(), and llvm::AtomicRMWInst::getSyncScopeID().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

emitIndirectDst()

MachineBasicBlock * emitIndirectDst ( MachineInstr & MI, MachineBasicBlock & MBB, const GCNSubtarget & ST )

static

Definition at line 5335 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), computeIndirectRegAndOffset(), DL, getIndirectSGPRIdx(), llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), I, llvm::MachineOperand::isReg(), loadM0FromVGPR(), MBB, MI, MRI, llvm::Offset, setM0ToIndexFromSGPR(), SubReg, TII, and TRI.

Referenced by llvm::SITargetLowering::EmitInstrWithCustomInserter().

emitIndirectSrc()

MachineBasicBlock * emitIndirectSrc ( MachineInstr & MI, MachineBasicBlock & MBB, const GCNSubtarget & ST )

static

Definition at line 5249 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), computeIndirectRegAndOffset(), DL, getIndirectSGPRIdx(), llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), I, llvm::RegState::Implicit, loadM0FromVGPR(), MBB, MI, MRI, llvm::Offset, setM0ToIndexFromSGPR(), SubReg, TII, and TRI.

Referenced by llvm::SITargetLowering::EmitInstrWithCustomInserter().

emitLoadM0FromVGPRLoop()

MachineBasicBlock::iterator emitLoadM0FromVGPRLoop ( const SIInstrInfo * TII, MachineRegisterInfo & MRI, MachineBasicBlock & OrigBB, MachineBasicBlock & LoopBB, const DebugLoc & DL, const MachineOperand & Idx, unsigned InitReg, unsigned ResultReg, unsigned PhiReg, unsigned InitSaveExecReg, int Offset, bool UseGPRIdxMode, Register & SGPRIdxReg )

static

Definition at line 5052 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::AMDGPU::LaneMaskConstants::AndSaveExecOpc, llvm::MachineBasicBlock::begin(), llvm::BuildMI(), DL, llvm::AMDGPU::LaneMaskConstants::ExecReg, llvm::AMDGPU::LaneMaskConstants::get(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), llvm::MachineFunction::getSubtarget(), llvm::getUndefRegState(), I, llvm::MachineOperand::isUndef(), llvm::RegState::Kill, MRI, llvm::Offset, TII, TRI, and llvm::AMDGPU::LaneMaskConstants::XorTermOpc.

Referenced by loadM0FromVGPR().

emitNonHSAIntrinsicError()

SDValue emitNonHSAIntrinsicError ( SelectionDAG & DAG, const SDLoc & DL, EVT VT )

static

Definition at line 9057 of file SIISelLowering.cpp.

References llvm::LLVMContext::diagnose(), DL, llvm::SelectionDAG::getContext(), llvm::MachineFunction::getFunction(), llvm::SelectionDAG::getMachineFunction(), and llvm::SelectionDAG::getPOISON().

emitRemovedIntrinsicError()

SDValue emitRemovedIntrinsicError ( SelectionDAG & DAG, const SDLoc & DL, EVT VT )

static

Definition at line 9065 of file SIISelLowering.cpp.

References llvm::LLVMContext::diagnose(), DL, llvm::SelectionDAG::getContext(), llvm::MachineFunction::getFunction(), llvm::SelectionDAG::getMachineFunction(), and llvm::SelectionDAG::getPOISON().

Expand64BitScalarArithmetic()

MachineBasicBlock * Expand64BitScalarArithmetic ( MachineInstr & MI, MachineBasicBlock * BB )

static

Definition at line 5438 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), MI, MRI, Opc, TII, and TRI.

Referenced by llvm::SITargetLowering::EmitInstrWithCustomInserter(), and lowerWaveReduce().

findFirstFreeSGPR()

unsigned findFirstFreeSGPR ( CCState & CCInfo )

static

Definition at line 80 of file SIISelLowering.cpp.

References llvm::CCState::isAllocated(), llvm_unreachable, and Reg.

Referenced by llvm::SITargetLowering::allocateSystemSGPRs().

findUser()

SDNode * findUser ( SDValue Value, unsigned Opcode )

static

Helper function for LowerBRCOND.

Definition at line 7562 of file SIISelLowering.cpp.

References llvm::Value::uses().

fixMasks()

void fixMasks ( SmallVectorImpl< DotSrc > & Srcs, unsigned ChainLength )

static

Definition at line 15982 of file SIISelLowering.cpp.

flatInstrMayAccessPrivate()

bool flatInstrMayAccessPrivate ( const Instruction * I )

static

Return if a flat address space atomicrmw can access private memory.

Definition at line 18581 of file SIISelLowering.cpp.

References llvm::AMDGPU::hasValueInRangeLikeMetadata(), I, and llvm::AMDGPUAS::PRIVATE_ADDRESS.

Referenced by llvm::SITargetLowering::shouldExpandAtomicCmpXchgInIR(), and llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

getAlignedAGPRClassID()

int getAlignedAGPRClassID ( unsigned UnalignedClassID )

static

Definition at line 17969 of file SIISelLowering.cpp.

Referenced by llvm::SITargetLowering::finalizeLowering().

getBasePtrIndex()

unsigned getBasePtrIndex ( const MemSDNode * N )

static

MemSDNode::getBasePtr() does not work for intrinsics, which needs to offset by the chain and intrinsic ID.

Theoretically we would also need to check the specific intrinsic, but they all place the pointer operand first.

Definition at line 13152 of file SIISelLowering.cpp.

References llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, and N.

Referenced by llvm::SITargetLowering::hasMemSDNodeUser().

getBuildDwordsVector()

SDValue getBuildDwordsVector ( SelectionDAG & DAG, SDLoc DL, ArrayRef< SDValue > Elts )

static

Definition at line 9073 of file SIISelLowering.cpp.

References assert(), DL, llvm::ArrayRef< T >::empty(), llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getPOISON(), llvm::SDValue::getValueType(), llvm::MVT::getVectorVT(), and llvm::ArrayRef< T >::size().

getConstantPermuteMask()

uint32_t getConstantPermuteMask ( uint32_t C )

static

Definition at line 13260 of file SIISelLowering.cpp.

References llvm::CallingConv::C.

Referenced by getPermuteMask().

getCoopAtomicOperandsInfo()

void getCoopAtomicOperandsInfo ( const CallBase & CI, bool IsLoad, TargetLoweringBase::IntrinsicInfo & Info )

static

Definition at line 1315 of file SIISelLowering.cpp.

References llvm::Acquire, llvm::acquire, llvm::cast(), llvm::CallBase::getArgOperand(), llvm::Value::getContext(), llvm::MDNode::getOperand(), llvm::LLVMContext::getOrInsertSyncScopeID(), Info, llvm::MOCooperative, llvm::MachineMemOperand::MOLoad, llvm::Monotonic, llvm::MachineMemOperand::MOStore, llvm::Release, llvm::release, llvm::seq_cst, and llvm::SequentiallyConsistent.

Referenced by llvm::SITargetLowering::getTgtMemIntrinsic().

getDWordFromOffset()

SDValue getDWordFromOffset ( SelectionDAG & DAG, SDLoc SL, SDValue Src, unsigned DWordOffset )

static

Scalar Type

Definition at line 13947 of file SIISelLowering.cpp.

References assert(), llvm::ISD::EXTRACT_VECTOR_ELT, llvm::SelectionDAG::ExtractVectorElements(), llvm::SelectionDAG::getBitcastedAnyExtOrTrunc(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getFixedValue(), llvm::MVT::getIntegerVT(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::MVT::getVectorVT(), and llvm::ISD::SRL.

Referenced by matchPERM(), and resolveSources().

getExtOpcodeForPromotedOp()

unsigned getExtOpcodeForPromotedOp ( SDValue Op )

static

Definition at line 7922 of file SIISelLowering.cpp.

References llvm::ISD::ADD, llvm::ISD::AND, llvm::ISD::ANY_EXTEND, llvm::cast(), llvm::ISD::isSignedIntSetCC(), llvm_unreachable, llvm::ISD::MUL, llvm::ISD::OR, llvm::ISD::SELECT, llvm::ISD::SETCC, llvm::ISD::SHL, llvm::ISD::SIGN_EXTEND, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::SUB, llvm::ISD::UMAX, llvm::ISD::UMIN, llvm::ISD::XOR, and llvm::ISD::ZERO_EXTEND.

getFPBinOp()

SDValue getFPBinOp ( SelectionDAG & DAG, unsigned Opcode, const SDLoc & SL, EVT VT, SDValue A, SDValue B, SDValue GlueChain, SDNodeFlags Flags )

static

Definition at line 12219 of file SIISelLowering.cpp.

References A(), assert(), B(), llvm::ISD::FMUL, llvm::SelectionDAG::getNode(), llvm::SDNode::getNumValues(), llvm::SDValue::getValue(), llvm::SelectionDAG::getVTList(), and llvm_unreachable.

getFPTernOp()

SDValue getFPTernOp ( SelectionDAG & DAG, unsigned Opcode, const SDLoc & SL, EVT VT, SDValue A, SDValue B, SDValue C, SDValue GlueChain, SDNodeFlags Flags )

static

Definition at line 12242 of file SIISelLowering.cpp.

References A(), assert(), B(), llvm::CallingConv::C, llvm::ISD::FMA, llvm::SelectionDAG::getNode(), llvm::SDNode::getNumValues(), llvm::SDValue::getValue(), llvm::SelectionDAG::getVTList(), and llvm_unreachable.

getIdentityValueFor32BitWaveReduction()

uint32_t getIdentityValueFor32BitWaveReduction ( unsigned Opc )

static

Definition at line 5489 of file SIISelLowering.cpp.

References llvm_unreachable, and Opc.

Referenced by lowerWaveReduce().

getIdentityValueFor64BitWaveReduction()

uint64_t getIdentityValueFor64BitWaveReduction ( unsigned Opc )

static

Definition at line 5519 of file SIISelLowering.cpp.

References llvm_unreachable, and Opc.

Referenced by lowerWaveReduce().

getIndirectSGPRIdx()

Register getIndirectSGPRIdx ( const SIInstrInfo * TII, MachineRegisterInfo & MRI, MachineInstr & MI, int Offset )

static

Definition at line 5230 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::BuildMI(), DL, llvm::MachineOperand::getReg(), I, MBB, MI, MRI, llvm::Offset, and TII.

Referenced by emitIndirectDst(), and emitIndirectSrc().

getIntrMemWidth()

unsigned getIntrMemWidth ( unsigned IntrID )

static

Definition at line 1286 of file SIISelLowering.cpp.

References llvm_unreachable.

Referenced by llvm::SITargetLowering::getTgtMemIntrinsic().

getLoadExtOrTrunc()

SDValue getLoadExtOrTrunc ( SelectionDAG & DAG, ISD::LoadExtType ExtType, SDValue Op, const SDLoc & SL, EVT VT )

static

Definition at line 11868 of file SIISelLowering.cpp.

References llvm::ISD::ANY_EXTEND, llvm::EVT::bitsLT(), llvm::ISD::EXTLOAD, llvm::SelectionDAG::getNode(), llvm_unreachable, llvm::ISD::NON_EXTLOAD, llvm::ISD::SEXTLOAD, llvm::ISD::SIGN_EXTEND, llvm::ISD::TRUNCATE, llvm::ISD::ZERO_EXTEND, and llvm::ISD::ZEXTLOAD.

getMad64_32()

SDValue getMad64_32 ( SelectionDAG & DAG, const SDLoc & SL, EVT VT, SDValue N0, SDValue N1, SDValue N2, bool Signed )

static

Definition at line 15596 of file SIISelLowering.cpp.

References llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getVTList(), llvm::AMDGPUISD::MAD_I64_I32, llvm::AMDGPUISD::MAD_U64_U32, Signed, and llvm::ISD::TRUNCATE.

Referenced by tryFoldMADwithSRL().

getPermuteMask()

uint32_t getPermuteMask ( SDValue V )

static

Definition at line 13284 of file SIISelLowering.cpp.

References llvm::ISD::AND, assert(), llvm::CallingConv::C, llvm::dyn_cast(), getConstantPermuteMask(), llvm::ConstantSDNode::getZExtValue(), llvm::ISD::OR, llvm::ISD::SHL, and llvm::ISD::SRL.

getPrivateAtomicExpansionKind()

TargetLowering::AtomicExpansionKind getPrivateAtomicExpansionKind ( const GCNSubtarget & STI )

static

Definition at line 18588 of file SIISelLowering.cpp.

References llvm::TargetLoweringBase::CustomExpand, llvm::GCNSubtarget::hasGloballyAddressableScratch(), and llvm::TargetLoweringBase::NotAtomic.

Referenced by llvm::SITargetLowering::shouldExpandAtomicCmpXchgInIR(), llvm::SITargetLowering::shouldExpandAtomicLoadInIR(), llvm::SITargetLowering::shouldExpandAtomicRMWInIR(), and llvm::SITargetLowering::shouldExpandAtomicStoreInIR().

getSPDenormModeValue()

SDValue getSPDenormModeValue ( uint32_t SPDenormMode, SelectionDAG & DAG, const SIMachineFunctionInfo * Info, const GCNSubtarget * ST )

static

Definition at line 12360 of file SIISelLowering.cpp.

References assert(), llvm::SelectionDAG::getTargetConstant(), Info, and Mode.

getSplatConstantFP()

ConstantFPSDNode * getSplatConstantFP ( SDValue Op )

static

Definition at line 14972 of file SIISelLowering.cpp.

References llvm::CallingConv::C, and llvm::dyn_cast().

globalMemoryFPAtomicIsLegal()

bool globalMemoryFPAtomicIsLegal ( const GCNSubtarget & Subtarget, const AtomicRMWInst * RMW, bool HasSystemScope )

static

Returns

true if it's valid to emit a native instruction for RMW, based on the properties of the target memory.

Definition at line 18551 of file SIISelLowering.cpp.

References llvm::GCNSubtarget::hasEmulatedSystemScopeAtomics(), llvm::Instruction::hasMetadata(), and llvm::GCNSubtarget::supportsAgentScopeFineGrainedRemoteMemoryAtomics().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

handleMulOperand()

std::optional< ByteProvider< SDValue > > handleMulOperand ( const SDValue & MulOperand )

static

Definition at line 15806 of file SIISelLowering.cpp.

References calculateByteProvider().

hasCFUser()

bool hasCFUser ( const Value * V, SmallPtrSet< const Value *, 16 > & Visited, unsigned WaveSize )

static

Definition at line 18936 of file SIISelLowering.cpp.

References llvm::dyn_cast(), hasCFUser(), llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::isa(), and IT.

Referenced by hasCFUser(), and llvm::SITargetLowering::requiresUniformRegister().

hasNon16BitAccesses()

bool hasNon16BitAccesses ( uint64_t PermMask, SDValue & Op, SDValue & OtherOp )

static

Definition at line 13925 of file SIISelLowering.cpp.

References addresses16Bits(), isExtendedFrom16Bits(), and llvm::peekThroughBitcasts().

Referenced by matchPERM().

is32bitWaveReduceOperation()

bool is32bitWaveReduceOperation ( unsigned Opc )

static

Definition at line 5542 of file SIISelLowering.cpp.

References Opc.

Referenced by lowerWaveReduce().

isAtomicRMWLegalIntTy()

bool isAtomicRMWLegalIntTy ( Type * Ty )

static

Returns

true if atomicrmw integer ops work for the type.

Definition at line 18517 of file SIISelLowering.cpp.

References llvm::dyn_cast(), and IT.

Referenced by atomicSupportedIfLegalIntType(), and isAtomicRMWLegalXChgTy().

isAtomicRMWLegalXChgTy()

bool isAtomicRMWLegalXChgTy ( const AtomicRMWInst * RMW )

static

Returns

true if this atomicrmw xchg type can be selected.

Definition at line 18527 of file SIISelLowering.cpp.

References DL, llvm::dyn_cast(), llvm::Module::getDataLayout(), llvm::Instruction::getFunction(), llvm::GlobalValue::getParent(), llvm::Value::getType(), and isAtomicRMWLegalIntTy().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

isClampZeroToOne()

bool isClampZeroToOne ( SDValue A, SDValue B )

static

Definition at line 15179 of file SIISelLowering.cpp.

References A(), B(), and llvm::dyn_cast().

isCopyFromRegOfInlineAsm()

bool isCopyFromRegOfInlineAsm ( const SDNode * N )

static

Definition at line 18353 of file SIISelLowering.cpp.

References assert(), llvm::ISD::CopyFromReg, and N.

Referenced by llvm::SITargetLowering::isSDNodeSourceOfDivergence().

isExtendedFrom16Bits()

bool isExtendedFrom16Bits ( SDValue & Operand )

static

Definition at line 13880 of file SIISelLowering.cpp.

References llvm::ISD::ANY_EXTEND, llvm::cast(), llvm::ISD::EXTLOAD, llvm::SDValue::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getSizeInBits(), llvm::SDValue::getValueType(), llvm::EVT::isVector(), llvm::ISD::SEXTLOAD, llvm::ISD::SIGN_EXTEND, llvm::ISD::ZERO_EXTEND, and llvm::ISD::ZEXTLOAD.

Referenced by hasNon16BitAccesses().

isFloatingPointWaveReduceOperation()

bool isFloatingPointWaveReduceOperation ( unsigned Opc )

static

Definition at line 5552 of file SIISelLowering.cpp.

References Opc.

Referenced by lowerWaveReduce().

isFrameIndexOp()

bool isFrameIndexOp ( SDValue Op )

static

Definition at line 17333 of file SIISelLowering.cpp.

References llvm::ISD::AssertZext, and llvm::isa().

Referenced by llvm::SITargetLowering::legalizeTargetIndependentNode().

isImmConstraint()

bool isImmConstraint ( StringRef Constraint )

static

Definition at line 17812 of file SIISelLowering.cpp.

References llvm::StringRef::size().

Referenced by llvm::SITargetLowering::getConstraintType(), and llvm::SITargetLowering::LowerAsmOperandForConstraint().

isKnownNonNull()

bool isKnownNonNull ( SDValue Val, SelectionDAG & DAG, const AMDGPUTargetMachine & TM, unsigned AddrSpace )

static

Return true if the value is a known valid address, such that a null check is not necessary.

Definition at line 8308 of file SIISelLowering.cpp.

References llvm::dyn_cast(), llvm::AMDGPUTargetMachine::getNullPointerValue(), and llvm::isa().

isMul()

bool isMul ( const SDValue Op )

static

Definition at line 15990 of file SIISelLowering.cpp.

References llvm::ISD::MUL.

isNoUnsignedWrap()

bool isNoUnsignedWrap ( SDValue Addr )

static

Definition at line 11617 of file SIISelLowering.cpp.

References llvm::ISD::ADD, llvm::SDNode::getFlags(), llvm::SDNode::getOpcode(), llvm::SDValue::getOpcode(), llvm::SDNodeFlags::hasNoUnsignedWrap(), and llvm::ISD::OR.

isV2BF16()

bool isV2BF16 ( Type * Ty )

static

Definition at line 18511 of file SIISelLowering.cpp.

References llvm::dyn_cast(), llvm::VectorType::getElementType(), llvm::FixedVectorType::getNumElements(), and llvm::Type::isBFloatTy().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

isV2F16()

bool isV2F16 ( Type * Ty )

static

Definition at line 18506 of file SIISelLowering.cpp.

References llvm::dyn_cast(), llvm::VectorType::getElementType(), llvm::FixedVectorType::getNumElements(), and llvm::Type::isHalfTy().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

isV2F16OrV2BF16()

bool isV2F16OrV2BF16 ( Type * Ty )

static

Definition at line 18496 of file SIISelLowering.cpp.

References llvm::dyn_cast(), llvm::Type::isBFloatTy(), and llvm::Type::isHalfTy().

Referenced by llvm::SITargetLowering::shouldExpandAtomicRMWInIR().

knownBitsForSBFE()

void knownBitsForSBFE ( const MachineInstr & MI, GISelValueTracking & VT, KnownBits & Known, const APInt & DemandedElts, unsigned BFEWidth, bool SExt, unsigned Depth )

static

Definition at line 18134 of file SIISelLowering.cpp.

References llvm::GISelValueTracking::computeKnownBitsImpl(), llvm::Depth, llvm::KnownBits::extractBits(), llvm::getIConstantVRegValWithLookThrough(), llvm::MachineOperand::getImm(), llvm::GISelValueTracking::getMachineFunction(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::MachineOperand::isImm(), llvm::MachineOperand::isReg(), llvm::maskTrailingOnes(), MI, MRI, llvm::Offset, llvm::KnownBits::sext(), and llvm::KnownBits::zext().

Referenced by llvm::SITargetLowering::computeKnownBitsForTargetInstr().

knownBitsForWorkitemID()

void knownBitsForWorkitemID ( const GCNSubtarget & ST, GISelValueTracking & VT, KnownBits & Known, unsigned Dim )

static

Definition at line 18126 of file SIISelLowering.cpp.

References llvm::countl_zero(), llvm::MachineFunction::getFunction(), llvm::GISelValueTracking::getMachineFunction(), llvm::APInt::setHighBits(), and llvm::KnownBits::Zero.

Referenced by llvm::SITargetLowering::computeKnownBitsForTargetInstr().

loadM0FromVGPR()

MachineBasicBlock::iterator loadM0FromVGPR ( const SIInstrInfo * TII, MachineBasicBlock & MBB, MachineInstr & MI, unsigned InitResultReg, unsigned PhiReg, int Offset, bool UseGPRIdxMode, Register & SGPRIdxReg )

static

Definition at line 5144 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), llvm::MachineFunction::CreateMachineBasicBlock(), DL, emitLoadM0FromVGPRLoop(), llvm::AMDGPU::LaneMaskConstants::ExecReg, llvm::First, llvm::AMDGPU::LaneMaskConstants::get(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), I, llvm::MachineFunction::insert(), MBB, MBBI, MI, llvm::AMDGPU::LaneMaskConstants::MovOpc, MRI, llvm::Offset, splitBlockForLoop(), TII, and TRI.

Referenced by emitIndirectDst(), and emitIndirectSrc().

lowerBALLOTIntrinsic()

SDValue lowerBALLOTIntrinsic ( const SITargetLowering & TLI, SDNode * N, SelectionDAG & DAG )

static

Definition at line 7133 of file SIISelLowering.cpp.

References llvm::dyn_cast(), llvm::SelectionDAG::getCondCode(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getCopyFromReg(), llvm::SelectionDAG::getEntryNode(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOperand(), llvm::EVT::getScalarSizeInBits(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getZExtOrTrunc(), N, SDValue(), llvm::ISD::SETCC, and llvm::ISD::SETNE.

lowerFCMPIntrinsic()

SDValue lowerFCMPIntrinsic ( const SITargetLowering & TLI, SDNode * N, SelectionDAG & DAG )

static

Definition at line 7104 of file SIISelLowering.cpp.

References llvm::EVT::bitsEq(), llvm::SelectionDAG::getCondCode(), llvm::SelectionDAG::getContext(), llvm::getFCmpCondCode(), llvm::EVT::getIntegerVT(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getPOISON(), llvm::SITargetLowering::getSubtarget(), llvm::SDValue::getValueType(), llvm::AMDGPUSubtarget::getWavefrontSize(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::CmpInst::isFPPredicate(), llvm::TargetLoweringBase::isTypeLegal(), and N.

lowerICMPIntrinsic()

SDValue lowerICMPIntrinsic ( const SITargetLowering & TLI, SDNode * N, SelectionDAG & DAG )

static

Definition at line 7070 of file SIISelLowering.cpp.

References llvm::EVT::bitsEq(), DL, llvm::SelectionDAG::getCondCode(), llvm::SelectionDAG::getContext(), llvm::getICmpCondCode(), llvm::EVT::getIntegerVT(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getPOISON(), llvm::SITargetLowering::getSubtarget(), llvm::AMDGPUSubtarget::getWavefrontSize(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::CmpInst::isIntPredicate(), llvm::CmpInst::isSigned(), llvm::TargetLoweringBase::isTypeLegal(), LHS, N, RHS, llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.

lowerLaneOp()

SDValue lowerLaneOp ( const SITargetLowering & TLI, SDNode * N, SelectionDAG & DAG )

static

Definition at line 7176 of file SIISelLowering.cpp.

References assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::ISD::CONCAT_VECTORS, llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::ISD::EXTRACT_SUBVECTOR, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::SelectionDAG::getAnyExtOrTrunc(), llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::MVT::getIntegerVT(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::EVT::getSimpleVT(), llvm::EVT::getSizeInBits(), llvm::SITargetLowering::getSubtarget(), llvm::SelectionDAG::getTargetConstant(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementType(), llvm::SelectionDAG::getVectorIdxConstant(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::MVT::getVectorVT(), llvm::ISD::INTRINSIC_WO_CHAIN, llvm::EVT::isFloatingPoint(), llvm::AMDGPU::isLegalDPALU_DPPControl(), llvm::EVT::isVector(), llvm_unreachable, N, llvm::SmallVectorTemplateBase< T, bool >::push_back(), SDValue(), and llvm::MVT::SimpleTy.

lowerWaveReduce()

MachineBasicBlock * lowerWaveReduce ( MachineInstr & MI, MachineBasicBlock & BB, const GCNSubtarget & ST, unsigned Opc )

static

Definition at line 5557 of file SIISelLowering.cpp.

References Accumulator, llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::end(), Expand64BitScalarArithmetic(), getIdentityValueFor32BitWaveReduction(), getIdentityValueFor64BitWaveReduction(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), I, is32bitWaveReduceOperation(), isFloatingPointWaveReduceOperation(), MI, MRI, Opc, llvm::MachineInstrBuilder::setOperandDead(), splitBlockForLoop(), TII, and TRI.

Referenced by llvm::SITargetLowering::EmitInstrWithCustomInserter().

matchPERM()

SDValue matchPERM ( SDNode * N, TargetLowering::DAGCombinerInfo & DCI )

static

Definition at line 14002 of file SIISelLowering.cpp.

References assert(), calculateByteProvider(), llvm::TargetLowering::DAGCombinerInfo::DAG, DL, llvm::ISD::FSHR, llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getBitcastedAnyExtOrTrunc(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getDataLayout(), getDWordFromOffset(), llvm::MVT::getIntegerVT(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueSizeInBits(), llvm::SDValue::getValueType(), hasNon16BitAccesses(), llvm::DataLayout::isBigEndian(), llvm::EVT::isByteSized(), N, P, llvm::SmallVectorTemplateBase< T, bool >::push_back(), SDValue(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

Referenced by llvm::SITargetLowering::PerformDAGCombine().

memVTFromLoadIntrData()

EVT memVTFromLoadIntrData ( const SITargetLowering & TLI, const DataLayout & DL, Type * Ty, unsigned MaxNumLanes )

static

Definition at line 1228 of file SIISelLowering.cpp.

References assert(), DL, llvm::dyn_cast(), llvm::TargetLoweringBase::getValueType(), and llvm::EVT::getVectorVT().

Referenced by llvm::SITargetLowering::getTgtMemIntrinsic(), and memVTFromLoadIntrReturn().

memVTFromLoadIntrReturn()

EVT memVTFromLoadIntrReturn ( const SITargetLowering & TLI, const DataLayout & DL, Type * Ty, unsigned MaxNumLanes )

static

Definition at line 1244 of file SIISelLowering.cpp.

References assert(), DL, llvm::dyn_cast(), and memVTFromLoadIntrData().

Referenced by llvm::SITargetLowering::getTgtMemIntrinsic().

minMaxOpcToMin3Max3Opc()

unsigned minMaxOpcToMin3Max3Opc ( unsigned Opc )

static

Definition at line 14907 of file SIISelLowering.cpp.

References llvm_unreachable, Opc, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::UMAX, and llvm::ISD::UMIN.

packImage16bitOpsToDwords()

void packImage16bitOpsToDwords ( SelectionDAG & DAG, SDValue Op, MVT PackVectorVT, SmallVectorImpl< SDValue > & PackedAddrs, unsigned DimIdx, unsigned EndIdx, unsigned NumGradients )

static

Definition at line 9214 of file SIISelLowering.cpp.

References llvm::ISD::ANY_EXTEND, DL, llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), I, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

padEltsToUndef()

SDValue padEltsToUndef ( SelectionDAG & DAG, const SDLoc & DL, EVT CastVT, SDValue Src, int ExtraElts )

static

Definition at line 9102 of file SIISelLowering.cpp.

References DL, llvm::SelectionDAG::ExtractVectorElements(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getPOISON(), llvm::EVT::getScalarType(), llvm::EVT::isVector(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by constructRetValue().

parseTexFail()

bool parseTexFail ( SDValue TexFailCtrl, SelectionDAG & DAG, SDValue * TFE, SDValue * LWE, bool & IsTexFail )

static

Definition at line 9196 of file SIISelLowering.cpp.

References llvm::cast(), DL, llvm::SDValue::getNode(), and llvm::SelectionDAG::getTargetConstant().

placeSources()

void placeSources ( ByteProvider< SDValue > & Src0, ByteProvider< SDValue > & Src1, SmallVectorImpl< DotSrc > & Src0s, SmallVectorImpl< DotSrc > & Src1s, int Step )

static

Definition at line 15838 of file SIISelLowering.cpp.

References addPermMasks(), assert(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::find_if(), I, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ByteProvider< ISelOp >::Src, and llvm::ByteProvider< ISelOp >::SrcOffset.

processPSInputArgs()

void processPSInputArgs ( SmallVectorImpl< ISD::InputArg > & Splits, CallingConv::ID CallConv, ArrayRef< ISD::InputArg > Ins, BitVector & Skipped, FunctionType * FType, SIMachineFunctionInfo * Info )

static

Definition at line 2644 of file SIISelLowering.cpp.

References llvm::CallingConv::AMDGPU_PS, assert(), E(), llvm::ISD::InputArg::Flags, llvm::ISD::InputArg::getOrigArgIndex(), llvm::MVT::getScalarSizeInBits(), I, Info, llvm::ISD::ArgFlagsTy::isInReg(), llvm::ISD::ArgFlagsTy::isSplit(), llvm::ISD::ArgFlagsTy::isSplitEnd(), llvm::MVT::isVector(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ArrayRef< T >::size(), llvm::ISD::InputArg::Used, and llvm::ISD::InputArg::VT.

Referenced by llvm::SITargetLowering::LowerFormalArguments().

reservePrivateMemoryRegs()

void reservePrivateMemoryRegs ( const TargetMachine & TM, MachineFunction & MF, const SIRegisterInfo & TRI, SIMachineFunctionInfo & Info )

static

Definition at line 3116 of file SIISelLowering.cpp.

References assert(), llvm::Function::getCallingConv(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::TargetMachine::getOptLevel(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), llvm::MachineFrameInfo::hasCalls(), llvm::MachineFrameInfo::hasStackObjects(), Info, llvm::AMDGPU::isShader(), MRI, llvm::None, llvm::AMDGPUFunctionArgInfo::PRIVATE_SEGMENT_BUFFER, Reg, llvm::report_fatal_error(), and TRI.

Referenced by llvm::SITargetLowering::finalizeLowering().

resolveSources()

SDValue resolveSources ( SelectionDAG & DAG, SDLoc SL, SmallVectorImpl< DotSrc > & Srcs, bool IsSigned, bool IsAny )

static

Definition at line 15914 of file SIISelLowering.cpp.

References addPermMasks(), assert(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::SelectionDAG::getConstant(), getDWordFromOffset(), llvm::SelectionDAG::getNode(), llvm::ISD::OR, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

selectSOffset()

SDValue selectSOffset ( SDValue SOffset, SelectionDAG & DAG, const GCNSubtarget * Subtarget )

static

Definition at line 10296 of file SIISelLowering.cpp.

References llvm::SelectionDAG::getRegister(), llvm::GCNSubtarget::hasRestrictedSOffset(), and llvm::isNullConstant().

setM0ToIndexFromSGPR()

void setM0ToIndexFromSGPR ( const SIInstrInfo * TII, MachineRegisterInfo & MRI, MachineInstr & MI, int Offset )

static

Definition at line 5207 of file SIISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), assert(), llvm::BuildMI(), DL, llvm::MachineOperand::getReg(), I, MBB, MI, MRI, llvm::Offset, and TII.

Referenced by emitIndirectDst(), and emitIndirectSrc().

splitBlockForLoop()

std::pair< MachineBasicBlock *, MachineBasicBlock * > splitBlockForLoop ( MachineInstr & MI, MachineBasicBlock & MBB, bool InstInLoop )

static

Returns

{ LoopBody, Remainder }

Definition at line 4948 of file SIISelLowering.cpp.

References llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::begin(), llvm::MachineFunction::CreateMachineBasicBlock(), I, llvm::MachineFunction::insert(), MBB, MBBI, MI, llvm::Next, llvm::MachineBasicBlock::splice(), and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

Referenced by llvm::SITargetLowering::emitGWSMemViolTestLoop(), loadM0FromVGPR(), and lowerWaveReduce().

STATISTIC()

STATISTIC	(	NumTailCalls	,
		"Number of tail calls"	)

strictFPExtFromF16()

SDValue strictFPExtFromF16 ( SelectionDAG & DAG, SDValue Src )

static

Return the source of an fp_extend from f16 to f32, or a converted FP constant.

Definition at line 15472 of file SIISelLowering.cpp.

References llvm::APFloat::convert(), llvm::dyn_cast(), llvm::SelectionDAG::getConstantFP(), llvm::APFloatBase::IEEEhalf(), llvm::APFloatBase::rmNearestTiesToEven, and SDValue().

SubIdx2Lane()

unsigned SubIdx2Lane ( unsigned Idx )

static

Helper function for adjustWritemask.

Definition at line 17136 of file SIISelLowering.cpp.

supportsMin3Max3()

bool supportsMin3Max3 ( const GCNSubtarget & Subtarget, unsigned Opc, EVT VT )

static

Returns

true if the subtarget supports minimum3 and maximum3 with the given base min/max opcode Opc for type VT.

Definition at line 15060 of file SIISelLowering.cpp.

References llvm::GCNSubtarget::hasMin3Max3_16(), llvm::GCNSubtarget::hasMin3Max3PKF16(), llvm::GCNSubtarget::hasMinimum3Maximum3F16(), llvm::GCNSubtarget::hasMinimum3Maximum3F32(), llvm::GCNSubtarget::hasMinimum3Maximum3PKF16(), llvm_unreachable, Opc, llvm::ISD::SMAX, llvm::ISD::SMIN, llvm::ISD::UMAX, and llvm::ISD::UMIN.

tryFoldMADwithSRL()

SDValue tryFoldMADwithSRL ( SelectionDAG & DAG, const SDLoc & SL, SDValue MulLHS, SDValue MulRHS, SDValue AddRHS )

static

Definition at line 15610 of file SIISelLowering.cpp.

References llvm::dyn_cast(), llvm::SDNode::getAsZExtVal(), llvm::SelectionDAG::getConstant(), getMad64_32(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getZeroExtendInReg(), llvm::Hi_32(), llvm::Lo_32(), SDValue(), llvm::ISD::SRL, std::swap(), and llvm::ISD::TRUNCATE.

vectorEltWillFoldAway()

bool vectorEltWillFoldAway ( SDValue Op )

static

Definition at line 14833 of file SIISelLowering.cpp.

References llvm::isa().

Variable Documentation

DisableLoopAlignment

cl::opt< bool > DisableLoopAlignment("amdgpu-disable-loop-alignment", cl::desc("Do not align and prefetch loops"), cl::init(false)) ( "amdgpu-disable-loop-alignment" , cl::desc("Do not align and prefetch loops") , cl::init(false)  )

static

Referenced by llvm::SITargetLowering::getPrefLoopAlignment().

UseDivergentRegisterIndexing

cl::opt< bool > UseDivergentRegisterIndexing("amdgpu-use-divergent-register-indexing", cl::Hidden, cl::desc("Use indirect register addressing for divergent indexes"), cl::init(false)) ( "amdgpu-use-divergent-register-indexing" , cl::Hidden , cl::desc("Use indirect register addressing for divergent indexes") , cl::init(false)  )

static

Referenced by llvm::SITargetLowering::shouldExpandVectorDynExt().