WebAssemblyISelLowering.cpp File Reference

This file implements the WebAssemblyTargetLowering class. More...

#include "WebAssemblyISelLowering.h"
#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
#include "Utils/WebAssemblyTypeUtilities.h"
#include "WebAssemblyMachineFunctionInfo.h"
#include "WebAssemblySubtarget.h"
#include "WebAssemblyTargetMachine.h"
#include "WebAssemblyUtilities.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SDPatternMatch.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsWebAssembly.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/KnownBits.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Target/TargetOptions.h"
#include "WebAssemblyISD.def"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "wasm-lower"
#define	HANDLE_NODETYPE(NODE)

Functions
static MachineBasicBlock *	LowerFPToInt (MachineInstr &MI, DebugLoc DL, MachineBasicBlock *BB, const TargetInstrInfo &TII, bool IsUnsigned, bool Int64, bool Float64, unsigned LoweredOpcode)
static MachineBasicBlock *	LowerMemcpy (MachineInstr &MI, DebugLoc DL, MachineBasicBlock *BB, const TargetInstrInfo &TII, bool Int64)
static MachineBasicBlock *	LowerMemset (MachineInstr &MI, DebugLoc DL, MachineBasicBlock *BB, const TargetInstrInfo &TII, bool Int64)
static MachineBasicBlock *	LowerCallResults (MachineInstr &CallResults, DebugLoc DL, MachineBasicBlock *BB, const WebAssemblySubtarget *Subtarget, const TargetInstrInfo &TII)
static void	fail (const SDLoc &DL, SelectionDAG &DAG, const char *Msg)
static bool	callingConvSupported (CallingConv::ID CallConv)
static bool	IsWebAssemblyGlobal (SDValue Op)
static std::optional< unsigned >	IsWebAssemblyLocal (SDValue Op, SelectionDAG &DAG)
SDValue	performLowerPartialReduction (SDNode *N, SelectionDAG &DAG)
static SDValue	GetExtendHigh (SDValue Op, unsigned UserOpc, EVT VT, SelectionDAG &DAG)
static SDValue	LowerConvertLow (SDValue Op, SelectionDAG &DAG)
static SDValue	unrollVectorShift (SDValue Op, SelectionDAG &DAG)
static SDValue	performVECTOR_SHUFFLECombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static SDValue	performVectorExtendToFPCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
	Convert ({u,s}itofp vec) --> ({u,s}itofp ({s,z}ext vec)) so it doesn't get split up into scalar instructions during legalization, and the vector extending instructions are selected in performVectorExtendCombine below.
static SDValue	performVectorNonNegToFPCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static SDValue	performVectorExtendCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static SDValue	performVectorTruncZeroCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static SDValue	extractSubVector (SDValue Vec, unsigned IdxVal, SelectionDAG &DAG, const SDLoc &DL, unsigned VectorWidth)
static SDValue	truncateVectorWithNARROW (EVT DstVT, SDValue In, const SDLoc &DL, SelectionDAG &DAG)
static SDValue	performTruncateCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static SDValue	performBitcastCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)
static SDValue	performAnyAllCombine (SDNode *N, SelectionDAG &DAG)
template<int MatchRHS, ISD::CondCode MatchCond, bool RequiresNegate, Intrinsic::ID Intrin>
static SDValue	TryMatchTrue (SDNode *N, EVT VecVT, SelectionDAG &DAG)
static SDValue	combineVectorSizedSetCCEquality (SDNode *N, TargetLowering::DAGCombinerInfo &DCI, const WebAssemblySubtarget *Subtarget)
	Try to convert a i128 comparison to a v16i8 comparison before type legalization splits it up into chunks.
static SDValue	performSETCCCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI, const WebAssemblySubtarget *Subtarget)
static SDValue	TryWideExtMulCombine (SDNode *N, SelectionDAG &DAG)
static SDValue	performMulCombine (SDNode *N, TargetLowering::DAGCombinerInfo &DCI)

Detailed Description

This file implements the WebAssemblyTargetLowering class.

Definition in file WebAssemblyISelLowering.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "wasm-lower"

Definition at line 42 of file WebAssemblyISelLowering.cpp.

HANDLE_NODETYPE

#define HANDLE_NODETYPE

(

NODE

)

Value:

  case WebAssemblyISD::NODE:                                                   \
    return "WebAssemblyISD::" #NODE;

Function Documentation

callingConvSupported()

static bool callingConvSupported ( CallingConv::ID  CallConv )

static

Definition at line 1186 of file WebAssemblyISelLowering.cpp.

References llvm::CallingConv::C, llvm::CallingConv::Cold, llvm::CallingConv::CXX_FAST_TLS, llvm::CallingConv::Fast, llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::CallingConv::Swift, and llvm::CallingConv::WASM_EmscriptenInvoke.

combineVectorSizedSetCCEquality()

static SDValue combineVectorSizedSetCCEquality ( SDNode *  N, TargetLowering::DAGCombinerInfo &  DCI, const WebAssemblySubtarget *  Subtarget  )

static

Try to convert a i128 comparison to a v16i8 comparison before type legalization splits it up into chunks.

Definition at line 3394 of file WebAssemblyISelLowering.cpp.

References llvm::TargetLowering::DAGCombinerInfo::DAG, DL, llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getConstant(), llvm::MachineFunction::getFunction(), llvm::SelectionDAG::getMachineFunction(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSetCC(), llvm::Function::hasFnAttribute(), llvm::WebAssemblySubtarget::hasSIMD128(), Intr, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::EVT::isByteSized(), llvm::EVT::isScalarInteger(), llvm::ISD::LOAD, N, llvm::peekThroughBitcasts(), llvm::ISD::SETEQ, llvm::ISD::SETNE, X, and Y.

extractSubVector()

static SDValue extractSubVector ( SDValue  Vec, unsigned  IdxVal, SelectionDAG &  DAG, const SDLoc &  DL, unsigned  VectorWidth  )

static

Definition at line 3135 of file WebAssemblyISelLowering.cpp.

References assert(), llvm::ISD::BUILD_VECTOR, DL, llvm::ISD::EXTRACT_SUBVECTOR, llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getIntPtrConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::EVT::getSizeInBits(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::isPowerOf2_32(), and llvm::SDNode::ops().

Referenced by combineBROADCAST_LOAD(), combineConcatVectorOps(), combineConstantPoolLoads(), combineEXTRACT_SUBVECTOR(), combineLoad(), combineOr(), combineSCALAR_TO_VECTOR(), combineSelect(), combineTargetShuffle(), combineX86ShuffleChain(), combineX86ShuffleChainWithExtract(), createVariablePermute(), extract128BitVector(), extract256BitVector(), getAVX512Node(), getAVX512TruncNode(), getEXTEND_VECTOR_INREG(), getHopForBuildVector(), lowerBuildVectorAsBroadcast(), LowerEXTEND_VECTOR_INREG(), lowerShuffleAsBroadcast(), lowerShuffleWithPERMV(), performBitcastCombine(), performMulCombine(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), SplitOpsAndApply(), splitVector(), truncateVectorWithNARROW(), and truncateVectorWithPACK().

fail()

static void fail ( const SDLoc &  DL, SelectionDAG &  DAG, const char *  Msg  )

static

Definition at line 1179 of file WebAssemblyISelLowering.cpp.

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

GetExtendHigh()

static SDValue GetExtendHigh ( SDValue  Op, unsigned  UserOpc, EVT  VT, SelectionDAG &  DAG  )

static

Definition at line 2312 of file WebAssemblyISelLowering.cpp.

References assert(), DL, llvm::SelectionDAG::getNode(), Opc, and llvm::ISD::VECTOR_SHUFFLE.

Referenced by TryWideExtMulCombine().

IsWebAssemblyGlobal()

static bool IsWebAssemblyGlobal ( SDValue  Op )

static

Definition at line 1706 of file WebAssemblyISelLowering.cpp.

References llvm::GlobalAddressSDNode::getAddressSpace(), and llvm::WebAssembly::isWasmVarAddressSpace().

IsWebAssemblyLocal()

static std::optional< unsigned > IsWebAssemblyLocal ( SDValue  Op, SelectionDAG &  DAG  )

static

Definition at line 1713 of file WebAssemblyISelLowering.cpp.

References llvm::FrameIndexSDNode::getIndex(), llvm::WebAssemblyFrameLowering::getLocalForStackObject(), and llvm::SelectionDAG::getMachineFunction().

LowerCallResults()

static MachineBasicBlock * LowerCallResults ( MachineInstr &  CallResults, DebugLoc  DL, MachineBasicBlock *  BB, const WebAssemblySubtarget *  Subtarget, const TargetInstrInfo &  TII  )

static

Definition at line 739 of file WebAssemblyISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstr::addOperand(), llvm::MachineInstrBuilder::addReg(), llvm::MachineInstrBuilder::addSym(), assert(), llvm::BuildMI(), llvm::MachineFunction::CreateMachineInstr(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::MachineInstr::defs(), DL, llvm::MachineInstr::eraseFromParent(), llvm::MachineFunction::getContext(), llvm::MachineInstrBuilder::getInstr(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::WebAssembly::getOrCreateFuncrefCallTableSymbol(), llvm::WebAssembly::getOrCreateFunctionTableSymbol(), llvm::MachineBasicBlock::getParent(), llvm::ilist_node_with_parent< NodeTy, ParentTy, Options >::getPrevNode(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::WebAssemblySubtarget::hasCallIndirectOverlong(), llvm::WebAssemblySubtarget::hasReferenceTypes(), llvm::MachineBasicBlock::insert(), llvm::MachineBasicBlock::insertAfter(), llvm::MachineOperand::isFI(), llvm::MachineOperand::isReg(), MRI, llvm::MachineInstr::removeOperand(), llvm::MCSymbolWasm::setNoStrip(), TII, and llvm::MachineInstr::uses().

LowerConvertLow()

static SDValue LowerConvertLow ( SDValue  Op, SelectionDAG &  DAG  )

static

Definition at line 2386 of file WebAssemblyISelLowering.cpp.

References DL, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FP_EXTEND, llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getVectorShuffle(), llvm::ISD::SINT_TO_FP, and llvm::ISD::UINT_TO_FP.

LowerFPToInt()

static MachineBasicBlock * LowerFPToInt ( MachineInstr &  MI, DebugLoc  DL, MachineBasicBlock *  BB, const TargetInstrInfo &  TII, bool  IsUnsigned, bool  Int64, bool  Float64, unsigned  LoweredOpcode  )

static

Definition at line 513 of file WebAssemblyISelLowering.cpp.

References llvm::MachineInstrBuilder::addFPImm(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), Context, DL, llvm::MachineBasicBlock::end(), F, llvm::MachineBasicBlock::getBasicBlock(), llvm::Function::getContext(), llvm::Type::getDoubleTy(), llvm::Type::getFloatTy(), llvm::MachineFunction::getFunction(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), Int64, INT64_MIN, MI, MRI, llvm::MachineBasicBlock::splice(), TII, and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

LowerMemcpy()

static MachineBasicBlock * LowerMemcpy ( MachineInstr &  MI, DebugLoc  DL, MachineBasicBlock *  BB, const TargetInstrInfo &  TII, bool  Int64  )

static

Definition at line 608 of file WebAssemblyISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::end(), F, llvm::MachineBasicBlock::getBasicBlock(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), Int64, MI, MRI, llvm::MachineOperand::setIsKill(), llvm::MachineBasicBlock::splice(), TII, and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

LowerMemset()

static MachineBasicBlock * LowerMemset ( MachineInstr &  MI, DebugLoc  DL, MachineBasicBlock *  BB, const TargetInstrInfo &  TII, bool  Int64  )

static

Definition at line 677 of file WebAssemblyISelLowering.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), DL, llvm::MachineBasicBlock::end(), F, llvm::MachineBasicBlock::getBasicBlock(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), Int64, MI, MRI, llvm::MachineOperand::setIsKill(), llvm::MachineBasicBlock::splice(), TII, and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

performAnyAllCombine()

static SDValue performAnyAllCombine ( SDNode *  N, SelectionDAG &  DAG  )

static

Definition at line 3315 of file WebAssemblyISelLowering.cpp.

References assert(), DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getNOT(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::ISD::INTRINSIC_WO_CHAIN, LHS, llvm::PatternMatch::m_Value(), llvm::PatternMatch::m_Zero(), N, llvm::ISD::SETEQ, and llvm::ISD::SETNE.

performBitcastCombine()

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

static

Definition at line 3242 of file WebAssemblyISelLowering.cpp.

References llvm::ISD::ADD, Concat, llvm::ISD::CONCAT_VECTORS, llvm::TargetLowering::DAGCombinerInfo::DAG, DL, extractSubVector(), llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getConstant(), llvm::EVT::getFixedSizeInBits(), llvm::MVT::getIntegerVT(), llvm::SelectionDAG::getNode(), llvm::EVT::getScalarType(), llvm::SelectionDAG::getSetCC(), llvm::SelectionDAG::getShiftAmountConstant(), llvm::SDValue::getValueType(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::SelectionDAG::getZExtOrTrunc(), I, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalize(), llvm::EVT::isFixedLengthVector(), llvm::EVT::isScalarInteger(), llvm::PatternMatch::m_BitCast(), llvm::PatternMatch::m_Value(), N, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ISD::SHL, llvm::SmallVectorBase< Size_T >::size(), and llvm::size().

performLowerPartialReduction()

SDValue performLowerPartialReduction	(	SDNode *	N,
		SelectionDAG &	DAG
	)

Definition at line 2112 of file WebAssemblyISelLowering.cpp.

References llvm::Add, llvm::ISD::ADD, assert(), DL, llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), llvm::SDNode::getValueType(), llvm::ISD::INTRINSIC_WO_CHAIN, llvm::ISD::isExtOpcode(), llvm::Mul, llvm::ISD::MUL, N, and llvm::ISD::SIGN_EXTEND.

performMulCombine()

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

static

Definition at line 3581 of file WebAssemblyISelLowering.cpp.

References assert(), llvm::ISD::CONCAT_VECTORS, llvm::TargetLowering::DAGCombinerInfo::DAG, DL, extractSubVector(), llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getUNDEF(), llvm::SelectionDAG::getVectorShuffle(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalize(), llvm::EVT::isVector(), LHS, llvm::ISD::MUL, N, RHS, and TryWideExtMulCombine().

performSETCCCombine()

static SDValue performSETCCCombine ( SDNode *  N, TargetLowering::DAGCombinerInfo &  DCI, const WebAssemblySubtarget *  Subtarget  )

static

Definition at line 3438 of file WebAssemblyISelLowering.cpp.

References llvm::ISD::BITCAST, llvm::EVT::changeVectorElementType(), combineVectorSizedSetCCEquality(), llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::MVT::getIntegerVT(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::TargetLowering::DAGCombinerInfo::isBeforeLegalize(), llvm::EVT::isFixedLengthVector(), llvm::EVT::isScalarInteger(), LHS, and N.

performTruncateCombine()

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

static

Definition at line 3215 of file WebAssemblyISelLowering.cpp.

References llvm::ISD::AND, llvm::TargetLowering::DAGCombinerInfo::DAG, DL, llvm::SelectionDAG::getConstant(), llvm::APInt::getLowBitsSet(), llvm::SelectionDAG::getNode(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getVectorElementType(), llvm::EVT::is128BitVector(), llvm::EVT::isSimple(), llvm::EVT::isVector(), N, and truncateVectorWithNARROW().

performVECTOR_SHUFFLECombine()

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

static

Definition at line 2897 of file WebAssemblyISelLowering.cpp.

References llvm::ISD::BITCAST, llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getUNDEF(), llvm::SDValue::getValueType(), llvm::EVT::getVectorNumElements(), llvm::SelectionDAG::getVectorShuffle(), llvm::EVT::is128BitVector(), and N.

performVectorExtendCombine()

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

static

Definition at line 2967 of file WebAssemblyISelLowering.cpp.

References assert(), llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::ISD::EXTRACT_SUBVECTOR, llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDValue::getValueType(), N, llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.

performVectorExtendToFPCombine()

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

static

Convert ({u,s}itofp vec) --> ({u,s}itofp ({s,z}ext vec)) so it doesn't get split up into scalar instructions during legalization, and the vector extending instructions are selected in performVectorExtendCombine below.

Definition at line 2925 of file WebAssemblyISelLowering.cpp.

References assert(), llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::SelectionDAG::getNode(), N, llvm::ISD::SIGN_EXTEND, llvm::ISD::SINT_TO_FP, llvm::ISD::UINT_TO_FP, and llvm::ISD::ZERO_EXTEND.

performVectorNonNegToFPCombine()

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

static

Definition at line 2948 of file WebAssemblyISelLowering.cpp.

References llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::SelectionDAG::getNode(), llvm::EVT::isVector(), N, llvm::SelectionDAG::SignBitIsZero(), and llvm::ISD::SINT_TO_FP.

performVectorTruncZeroCombine()

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

static

Definition at line 3014 of file WebAssemblyISelLowering.cpp.

References Concat, llvm::ISD::CONCAT_VECTORS, Conversion, llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::ISD::FP_ROUND, llvm::ISD::FP_TO_SINT_SAT, llvm::ISD::FP_TO_UINT_SAT, llvm::SelectionDAG::getNode(), llvm_unreachable, N, and llvm::Splat.

truncateVectorWithNARROW()

static SDValue truncateVectorWithNARROW ( EVT  DstVT, SDValue  In, const SDLoc &  DL, SelectionDAG &  DAG  )

static

Definition at line 3164 of file WebAssemblyISelLowering.cpp.

References assert(), llvm::ISD::CONCAT_VECTORS, DL, extractSubVector(), llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getContext(), llvm::EVT::getIntegerVT(), llvm::SelectionDAG::getNode(), llvm::EVT::getScalarSizeInBits(), llvm::EVT::getSizeInBits(), llvm::EVT::getVectorNumElements(), llvm::EVT::getVectorVT(), llvm::Hi, llvm::EVT::is128BitVector(), llvm::EVT::is256BitVector(), llvm::isPowerOf2_32(), llvm::Lo, and truncateVectorWithNARROW().

Referenced by performTruncateCombine(), and truncateVectorWithNARROW().

TryMatchTrue()

template<int MatchRHS, ISD::CondCode MatchCond, bool RequiresNegate, Intrinsic::ID Intrin>

static SDValue TryMatchTrue ( SDNode *  N, EVT  VecVT, SelectionDAG &  DAG  )

static

Definition at line 3370 of file WebAssemblyISelLowering.cpp.

References Cond, DL, llvm::get(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getNOT(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::ISD::INTRINSIC_WO_CHAIN, LHS, N, and RHS.

TryWideExtMulCombine()

static SDValue TryWideExtMulCombine ( SDNode *  N, SelectionDAG &  DAG  )

static

Definition at line 3495 of file WebAssemblyISelLowering.cpp.

References assert(), llvm::ISD::CONCAT_VECTORS, DL, GetExtendHigh(), llvm::SelectionDAG::getNode(), llvm::EVT::getVectorElementType(), llvm::EVT::getVectorNumElements(), llvm::Hi, LHS, llvm::Lo, llvm::ISD::MUL, N, RHS, llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.

Referenced by performMulCombine().

unrollVectorShift()

static SDValue unrollVectorShift ( SDValue  Op, SelectionDAG &  DAG  )

static

Definition at line 2782 of file WebAssemblyISelLowering.cpp.

References llvm::ISD::AND, llvm::EVT::bitsGE(), DL, llvm::SelectionDAG::ExtractVectorElements(), llvm::SelectionDAG::getBuildVector(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::EVT::getSizeInBits(), llvm::SelectionDAG::getValueType(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::ISD::SIGN_EXTEND_INREG, llvm::ISD::SRA, and llvm::SelectionDAG::UnrollVectorOp().