LLVM 22.0.0git
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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.
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#define | DEBUG_TYPE "wasm-lower" |
#define | HANDLE_NODETYPE(NODE) |
This file implements the WebAssemblyTargetLowering class.
Definition in file WebAssemblyISelLowering.cpp.
#define DEBUG_TYPE "wasm-lower" |
Definition at line 42 of file WebAssemblyISelLowering.cpp.
#define HANDLE_NODETYPE | ( | NODE | ) |
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Definition at line 1162 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.
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Try to convert a i128 comparison to a v16i8 comparison before type legalization splits it up into chunks.
Definition at line 3282 of file WebAssemblyISelLowering.cpp.
References llvm::cast(), 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(), llvm::ISD::INTRINSIC_WO_CHAIN, llvm::isa(), llvm::EVT::isByteSized(), llvm::EVT::isScalarInteger(), N, llvm::peekThroughBitcasts(), SDValue(), llvm::ISD::SETEQ, llvm::ISD::SETNE, X, and Y.
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Definition at line 3023 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().
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Definition at line 1155 of file WebAssemblyISelLowering.cpp.
References llvm::LLVMContext::diagnose(), DL, llvm::SelectionDAG::getContext(), llvm::MachineFunction::getFunction(), and llvm::SelectionDAG::getMachineFunction().
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Definition at line 2200 of file WebAssemblyISelLowering.cpp.
References assert(), llvm::cast(), DL, llvm::SelectionDAG::getNode(), Opc, SDValue(), and llvm::ISD::VECTOR_SHUFFLE.
Referenced by TryWideExtMulCombine().
Definition at line 1682 of file WebAssemblyISelLowering.cpp.
References llvm::dyn_cast(), llvm::GlobalAddressSDNode::getAddressSpace(), and llvm::WebAssembly::isWasmVarAddressSpace().
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Definition at line 1689 of file WebAssemblyISelLowering.cpp.
References llvm::dyn_cast(), llvm::FrameIndexSDNode::getIndex(), llvm::WebAssemblyFrameLowering::getLocalForStackObject(), and llvm::SelectionDAG::getMachineFunction().
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Definition at line 715 of file WebAssemblyISelLowering.cpp.
References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstr::addOperand(), llvm::MachineInstrBuilder::addReg(), llvm::MachineInstrBuilder::addSym(), assert(), llvm::BuildMI(), 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, Reg, llvm::MachineInstr::removeOperand(), llvm::MCSymbolWasm::setNoStrip(), TII, and llvm::MachineInstr::uses().
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Definition at line 2274 of file WebAssemblyISelLowering.cpp.
References DL, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getVectorShuffle(), llvm::isa(), SDValue(), llvm::ISD::SINT_TO_FP, and llvm::ISD::UINT_TO_FP.
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Definition at line 489 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(), llvm::cast(), 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().
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Definition at line 584 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().
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Definition at line 653 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().
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Definition at line 3203 of file WebAssemblyISelLowering.cpp.
References assert(), DL, llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getNOT(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::ISD::INTRINSIC_WO_CHAIN, LHS, llvm::SDPatternMatch::m_c_SetCC(), llvm::SDPatternMatch::m_CondCode(), llvm::SDPatternMatch::m_SpecificCondCode(), llvm::PatternMatch::m_Value(), llvm::PatternMatch::m_Zero(), N, llvm::SDPatternMatch::sd_match(), SDValue(), llvm::ISD::SETEQ, and llvm::ISD::SETNE.
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Definition at line 3130 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::SDPatternMatch::m_c_SetCC(), llvm::SDPatternMatch::m_CondCode(), llvm::PatternMatch::m_Value(), N, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SDPatternMatch::sd_match(), SDValue(), llvm::ISD::SHL, llvm::size(), and llvm::SmallVectorTemplateCommon< T, typename >::size().
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Definition at line 3469 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, SDValue(), and TryWideExtMulCombine().
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Definition at line 3326 of file WebAssemblyISelLowering.cpp.
References llvm::cast(), 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, N, SDValue(), and TryMatchTrue().
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Definition at line 3103 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, SDValue(), and truncateVectorWithNARROW().
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Definition at line 2785 of file WebAssemblyISelLowering.cpp.
References llvm::cast(), llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::SelectionDAG::getBitcast(), llvm::SelectionDAG::getUNDEF(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getVectorShuffle(), N, and SDValue().
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Definition at line 2855 of file WebAssemblyISelLowering.cpp.
References assert(), llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::dyn_cast(), llvm::ISD::EXTRACT_SUBVECTOR, llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::SDValue::getValueType(), N, SDValue(), llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.
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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 2813 of file WebAssemblyISelLowering.cpp.
References assert(), llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::SelectionDAG::getNode(), N, SDValue(), llvm::ISD::SIGN_EXTEND, llvm::ISD::SINT_TO_FP, llvm::ISD::UINT_TO_FP, and llvm::ISD::ZERO_EXTEND.
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Definition at line 2836 of file WebAssemblyISelLowering.cpp.
References llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::SelectionDAG::getNode(), llvm::EVT::isVector(), N, SDValue(), llvm::SelectionDAG::SignBitIsZero(), and llvm::ISD::SINT_TO_FP.
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Definition at line 2902 of file WebAssemblyISelLowering.cpp.
References Concat, llvm::ISD::CONCAT_VECTORS, Conversion, llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::dyn_cast(), llvm::ISD::FP_ROUND, llvm::ISD::FP_TO_SINT_SAT, llvm::ISD::FP_TO_UINT_SAT, llvm::SelectionDAG::getNode(), llvm_unreachable, N, SDValue(), and llvm::Splat.
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Definition at line 3052 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, SDValue(), and truncateVectorWithNARROW().
Referenced by performTruncateCombine(), and truncateVectorWithNARROW().
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Definition at line 3258 of file WebAssemblyISelLowering.cpp.
References llvm::cast(), Cond, DL, llvm::get(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getNOT(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::ISD::INTRINSIC_WO_CHAIN, LHS, N, RHS, and SDValue().
Referenced by performSETCCCombine().
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Definition at line 3383 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, SDValue(), llvm::ISD::SIGN_EXTEND, and llvm::ISD::ZERO_EXTEND.
Referenced by performMulCombine().
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Definition at line 2670 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().