#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
Classes | |
| struct | ShiftParams |
Public Types | |
| enum | LegalizeResult { AlreadyLegal , Legalized , UnableToLegalize } |
Public Attributes | |
| MachineIRBuilder & | MIRBuilder |
| Expose MIRBuilder so clients can set their own RecordInsertInstruction functions. | |
| GISelChangeObserver & | Observer |
| To keep track of changes made by the LegalizerHelper. | |
Detailed Description
Definition at line 49 of file LegalizerHelper.h.
Member Enumeration Documentation
◆ LegalizeResult
| Enumerator | |
|---|---|
| AlreadyLegal | Instruction was already legal and no change was made to the MachineFunction. |
| Legalized | Instruction has been legalized and the MachineFunction changed. |
| UnableToLegalize | Some kind of error has occurred and we could not legalize this instruction. |
Definition at line 65 of file LegalizerHelper.h.
Constructor & Destructor Documentation
◆ LegalizerHelper() [1/2]
| LegalizerHelper::LegalizerHelper | ( | MachineFunction & | MF, |
| GISelChangeObserver & | Observer, | ||
| MachineIRBuilder & | B ) |
Definition at line 105 of file LegalizerHelper.cpp.
References getLegalizerInfo(), getTargetLowering(), MIRBuilder, and Observer.
◆ LegalizerHelper() [2/2]
| LegalizerHelper::LegalizerHelper | ( | MachineFunction & | MF, |
| const LegalizerInfo & | LI, | ||
| GISelChangeObserver & | Observer, | ||
| MachineIRBuilder & | B, | ||
| GISelValueTracking * | VT = nullptr ) |
Definition at line 112 of file LegalizerHelper.cpp.
References B(), getTargetLowering(), MIRBuilder, and Observer.
Member Function Documentation
◆ bitcast()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcast | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Legalize an instruction by replacing the value type.
Definition at line 4427 of file LegalizerHelper.cpp.
References bitcastConcatVector(), bitcastDst(), bitcastExtractSubvector(), bitcastExtractVectorElt(), bitcastInsertSubvector(), bitcastInsertVectorElt(), bitcastShuffleVector(), bitcastSrc(), llvm::MachineMemOperand::clearRanges(), llvm::dbgs(), llvm::MachineMemOperand::getMemoryType(), llvm::LLT::getSizeInBits(), Legalized, LLVM_DEBUG, MI, Observer, llvm::MachineMemOperand::setType(), and UnableToLegalize.
Referenced by legalizeInstrStep().
◆ bitcastConcatVector()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcastConcatVector | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | CastTy ) |
Definition at line 3937 of file LegalizerHelper.cpp.
References llvm::dyn_cast(), MI, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by bitcast().
◆ bitcastDst()
| void LegalizerHelper::bitcastDst | ( | MachineInstr & | MI, |
| LLT | CastTy, | ||
| unsigned | OpIdx ) |
Legalize a single operand OpIdx of the machine instruction MI as a def by inserting a G_BITCAST from CastTy.
Definition at line 2193 of file LegalizerHelper.cpp.
References MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by bitcast(), llvm::AMDGPULegalizerInfo::legalizeBufferLoad(), and llvm::AMDGPULegalizerInfo::legalizeSBufferLoad().
◆ bitcastExtractSubvector()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcastExtractSubvector | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | CastTy ) |
This attempts to bitcast G_EXTRACT_SUBVECTOR to CastTy.
<vscale x 8 x i1> = G_EXTRACT_SUBVECTOR <vscale x 16 x i1>, N
===>
<vscale x 2 x i1> = G_BITCAST <vscale x 16 x i1> <vscale x 1 x i8> = G_EXTRACT_SUBVECTOR <vscale x 2 x i1>, N / 8 <vscale x 8 x i1> = G_BITCAST <vscale x 1 x i8>
Definition at line 4016 of file LegalizerHelper.cpp.
References llvm::cast(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::divideCoefficientBy(), llvm::LLT::getElementCount(), llvm::LLT::getElementType(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getKnownMinValue(), llvm::LLT::getSizeInBits(), llvm::LLT::isVector(), Legalized, MI, MIRBuilder, UnableToLegalize, and llvm::LLT::vector().
Referenced by bitcast().
◆ bitcastExtractVectorElt()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcastExtractVectorElt | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | CastTy ) |
Perform Bitcast legalize action on G_EXTRACT_VECTOR_ELT.
Perform a G_EXTRACT_VECTOR_ELT in a different sized vector element.
If this is casting to a vector with a smaller element size, perform multiple element extracts and merge the results. If this is coercing to a vector with larger elements, index the bitcasted vector and extract the target element with bit operations. This is intended to force the indexing in the native register size for architectures that can dynamically index the register file.
Definition at line 3728 of file LegalizerHelper.cpp.
References getBitcastWiderVectorElementOffset(), llvm::LLT::getElementType(), llvm::ElementCount::getFixed(), llvm::LLT::getNumElements(), llvm::LLT::getSizeInBits(), I, llvm::isPowerOf2_32(), llvm::LLT::isVector(), Legalized, llvm::Log2_32(), MI, MIRBuilder, llvm::LLT::scalarOrVector(), and UnableToLegalize.
Referenced by bitcast().
◆ bitcastInsertSubvector()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcastInsertSubvector | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | CastTy ) |
This attempts to bitcast G_INSERT_SUBVECTOR to CastTy.
<vscale x 16 x i1> = G_INSERT_SUBVECTOR <vscale x 16 x i1>, <vscale x 8 x i1>, N
===>
<vscale x 2 x i8> = G_BITCAST <vscale x 16 x i1> <vscale x 1 x i8> = G_BITCAST <vscale x 8 x i1> <vscale x 2 x i8> = G_INSERT_SUBVECTOR <vscale x 2 x i8>, <vscale x 1 x i8>, N / 8 <vscale x 16 x i1> = G_BITCAST <vscale x 2 x i8>
Definition at line 4079 of file LegalizerHelper.cpp.
References llvm::cast(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::divideCoefficientBy(), llvm::LLT::getElementCount(), llvm::LLT::getElementType(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::getKnownMinValue(), llvm::LLT::getSizeInBits(), llvm::LLT::isVector(), Legalized, MI, MIRBuilder, UnableToLegalize, and llvm::LLT::vector().
Referenced by bitcast().
◆ bitcastInsertVectorElt()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcastInsertVectorElt | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | CastTy ) |
Perform Bitcast legalize action on G_INSERT_VECTOR_ELT.
Perform a G_INSERT_VECTOR_ELT in a different sized vector element.
If this is increasing the element size, perform the indexing in the target element type, and use bit operations to insert at the element position. This is intended for architectures that can dynamically index the register file and want to force indexing in the native register size.
Definition at line 3864 of file LegalizerHelper.cpp.
References buildBitFieldInsert(), getBitcastWiderVectorElementOffset(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::LLT::getSizeInBits(), llvm::isPowerOf2_32(), llvm::LLT::isVector(), Legalized, llvm::Log2_32(), MI, MIRBuilder, and UnableToLegalize.
Referenced by bitcast().
◆ bitcastShuffleVector()
| LegalizerHelper::LegalizeResult LegalizerHelper::bitcastShuffleVector | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | CastTy ) |
Definition at line 3982 of file LegalizerHelper.cpp.
References llvm::cast(), llvm::LLT::changeElementType(), llvm::LLT::getElementCount(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getScalarType(), Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by bitcast().
◆ bitcastSrc()
| void LegalizerHelper::bitcastSrc | ( | MachineInstr & | MI, |
| LLT | CastTy, | ||
| unsigned | OpIdx ) |
Legalize a single operand OpIdx of the machine instruction MI as a use by inserting a G_BITCAST to CastTy.
Definition at line 2188 of file LegalizerHelper.cpp.
References MI, MIRBuilder, and OpIdx.
Referenced by bitcast().
◆ buildConstantShiftPart()
| Register LegalizerHelper::buildConstantShiftPart | ( | unsigned | Opcode, |
| unsigned | PartIdx, | ||
| unsigned | NumParts, | ||
| ArrayRef< Register > | SrcParts, | ||
| const ShiftParams & | Params, | ||
| LLT | TargetTy, | ||
| LLT | ShiftAmtTy ) |
Generates a single output part for constant shifts using direct indexing.
Calculates which source parts contribute and how they're combined.
Definition at line 6229 of file LegalizerHelper.cpp.
References assert(), llvm::LegalizerHelper::ShiftParams::BitShift, llvm::getIConstantVRegVal(), llvm::Hi, llvm::LegalizerHelper::ShiftParams::InvBitShift, llvm_unreachable, llvm::Lo, MIRBuilder, llvm::LegalizerHelper::ShiftParams::SignBit, llvm::LegalizerHelper::ShiftParams::WordShift, and llvm::LegalizerHelper::ShiftParams::Zero.
Referenced by narrowScalarShiftByConstantMultiway().
◆ buildVariableShiftPart()
| Register LegalizerHelper::buildVariableShiftPart | ( | unsigned | Opcode, |
| Register | MainOperand, | ||
| Register | ShiftAmt, | ||
| LLT | TargetTy, | ||
| Register | CarryOperand = Register() ) |
Generates a shift part with carry for variable shifts.
Combines main operand shifted by BitShift with carry bits from adjacent operand.
Definition at line 6306 of file LegalizerHelper.cpp.
References getReg(), llvm::LLT::getScalarSizeInBits(), llvm::CmpInst::ICMP_EQ, llvm::Register::isValid(), MIRBuilder, and llvm::LLT::scalar().
Referenced by narrowScalarShiftMultiway().
◆ coerceToScalar()
Cast the given value to an LLT::scalar with an equivalent size.
Returns the register to use if an instruction was inserted. Returns the original register if no coercion was necessary.
Definition at line 2119 of file LegalizerHelper.cpp.
References assert(), DL, MIRBuilder, Register, and llvm::LLT::scalar().
Referenced by lowerUnmergeValues().
◆ createStackStoreLoad()
| MachineInstrBuilder LegalizerHelper::createStackStoreLoad | ( | const DstOp & | Res, |
| const SrcOp & | Val ) |
Create a store of Val to a stack temporary and return a load as the same type as Res.
Definition at line 4920 of file LegalizerHelper.cpp.
References createStackTemporary(), llvm::DstOp::getLLTTy(), llvm::SrcOp::getLLTTy(), getStackTemporaryAlignment(), and MIRBuilder.
◆ createStackTemporary()
| MachineInstrBuilder LegalizerHelper::createStackTemporary | ( | TypeSize | Bytes, |
| Align | Alignment, | ||
| MachinePointerInfo & | PtrInfo ) |
Create a stack temporary based on the size in bytes and the alignment.
Definition at line 4907 of file LegalizerHelper.cpp.
References llvm::MachineFrameInfo::CreateStackObject(), DL, llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), MIRBuilder, and llvm::LLT::pointer().
Referenced by createStackStoreLoad(), lowerExtractInsertVectorElt(), and lowerVECTOR_COMPRESS().
◆ equalizeVectorShuffleLengths()
| LegalizerHelper::LegalizeResult LegalizerHelper::equalizeVectorShuffleLengths | ( | MachineInstr & | MI | ) |
Equalize source and destination vector sizes of G_SHUFFLE_VECTOR.
Definition at line 6896 of file LegalizerHelper.cpp.
References llvm::alignTo(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::copy(), llvm::LLT::fixed_vector(), llvm::LLT::getElementType(), I, Legalized, MI, MIRBuilder, and moreElementsVectorDst().
Referenced by moreElementsVectorShuffle().
◆ fewerElementsBitcast()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsBitcast | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5689 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::fixed_vector(), llvm::LLT::getElementType(), llvm::LLT::getSizeInBits(), getUnmergeResults(), Legalized, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and UnableToLegalize.
Referenced by fewerElementsVector().
◆ fewerElementsVector()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVector | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Legalize a vector instruction by splitting into multiple components, each acting on the same scalar type as the original but with fewer elements.
Definition at line 5511 of file LegalizerHelper.cpp.
References assert(), llvm::cast(), fewerElementsBitcast(), fewerElementsVectorExtractInsertVectorElt(), fewerElementsVectorMerge(), fewerElementsVectorMultiEltType(), fewerElementsVectorPhi(), fewerElementsVectorReductions(), fewerElementsVectorSeqReductions(), fewerElementsVectorShuffle(), fewerElementsVectorUnmergeValues(), llvm::LLT::getNumElements(), GISEL_VECREDUCE_CASES_NONSEQ, llvm::LLT::isVector(), MI, reduceLoadStoreWidth(), and UnableToLegalize.
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingLoad(), and legalizeInstrStep().
◆ fewerElementsVectorExtractInsertVectorElt()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorExtractInsertVectorElt | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5330 of file LegalizerHelper.cpp.
References assert(), llvm::extractParts(), llvm::getIConstantVRegValWithLookThrough(), llvm::LLT::getNumElements(), llvm::LLT::isVector(), Legalized, lowerExtractInsertVectorElt(), MI, and MIRBuilder.
Referenced by fewerElementsVector().
◆ fewerElementsVectorMerge()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorMerge | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5244 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::getNumElements(), llvm::LLT::getScalarType(), llvm::LLT::getSizeInBits(), llvm::LLT::isVector(), Legalized, MI, MIRBuilder, llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and UnableToLegalize.
Referenced by fewerElementsVector().
◆ fewerElementsVectorMultiEltType()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorMultiEltType | ( | GenericMachineInstr & | MI, |
| unsigned | NumElts, | ||
| std::initializer_list< unsigned > | NonVecOpIndices = {} ) |
Handles most opcodes.
Split MI into same instruction on sub-vectors or scalars with NumElts elements (1 for scalar). Supports uneven splits: there can be leftover sub-vector with fewer then NumElts or a leftover scalar. To avoid this use moreElements first and set MI number of elements to multiple of NumElts. Non-vector operands that should be used on all sub-instructions without split are listed in NonVecOpIndices.
Definition at line 5072 of file LegalizerHelper.cpp.
References llvm::append_range(), assert(), broadcastSrcOp(), llvm::extractVectorParts(), hasSameNumEltsOnAllVectorOperands(), I, llvm::is_contained(), Legalized, makeDstOps(), MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::size(), and Uses.
Referenced by fewerElementsVector().
◆ fewerElementsVectorPhi()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorPhi | ( | GenericMachineInstr & | MI, |
| unsigned | NumElts ) |
Definition at line 5142 of file LegalizerHelper.cpp.
References llvm::extractVectorParts(), llvm::MachineBasicBlock::getFirstTerminatorForward(), Legalized, makeDstOps(), MBB, MI, MIRBuilder, and llvm::SmallVectorTemplateBase< T, bool >::push_back().
Referenced by fewerElementsVector().
◆ fewerElementsVectorReductions()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorReductions | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5865 of file LegalizerHelper.cpp.
References assert(), llvm::cast(), llvm::SmallVectorImpl< T >::clear(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::extractParts(), llvm::LLT::getNumElements(), getReg(), llvm::isPowerOf2_32(), llvm::LLT::isScalar(), llvm::LLT::isVector(), Legalized, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by fewerElementsVector().
◆ fewerElementsVectorSeqReductions()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorSeqReductions | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5952 of file LegalizerHelper.cpp.
References assert(), llvm::extractParts(), llvm::LLT::isScalar(), Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by fewerElementsVector().
◆ fewerElementsVectorShuffle()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorShuffle | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5725 of file LegalizerHelper.cpp.
References AbstractManglingParser< Derived, Alloc >::Ops, assert(), llvm::LLT::changeElementCount(), llvm::extractParts(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::Hi, High, llvm::isPowerOf2_32(), llvm::LLT::isVector(), Legalized, llvm::Lo, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LLT::scalar(), and UnableToLegalize.
Referenced by fewerElementsVector().
◆ fewerElementsVectorUnmergeValues()
| LegalizerHelper::LegalizeResult LegalizerHelper::fewerElementsVectorUnmergeValues | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5195 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::getScalarType(), llvm::LLT::getSizeInBits(), I, llvm::LLT::isVector(), Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by fewerElementsVector().
◆ getDynStackAllocTargetPtr()
| Register LegalizerHelper::getDynStackAllocTargetPtr | ( | Register | SPReg, |
| Register | AllocSize, | ||
| Align | Alignment, | ||
| LLT | PtrTy ) |
Definition at line 9228 of file LegalizerHelper.cpp.
References llvm::Alloc, llvm::LLT::getSizeInBits(), MIRBuilder, llvm::APInt::negate(), llvm::LLT::scalar(), SPReg, and llvm::Align::value().
Referenced by lowerDynStackAlloc().
◆ getLegalizerInfo()
|
inline |
Expose LegalizerInfo so the clients can re-use.
Definition at line 79 of file LegalizerHelper.h.
Referenced by LegalizerHelper().
◆ getStackTemporaryAlignment()
Return the alignment to use for a stack temporary object with the given type.
Definition at line 4896 of file LegalizerHelper.cpp.
References llvm::MinAlign(), and llvm::PowerOf2Ceil().
Referenced by createStackStoreLoad(), lowerExtractInsertVectorElt(), and lowerVECTOR_COMPRESS().
◆ getTargetLowering()
|
inline |
Definition at line 80 of file LegalizerHelper.h.
Referenced by LegalizerHelper(), and LegalizerHelper().
◆ getValueTracking()
|
inline |
Definition at line 81 of file LegalizerHelper.h.
Referenced by llvm::AMDGPULegalizerInfo::buildMultiply().
◆ getVectorElementPointer()
Get a pointer to vector element Index located in memory for a vector of type VecTy starting at a base address of VecPtr.
If Index is out of bounds the returned pointer is unspecified, but will be within the vector bounds.
Definition at line 4955 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::changeElementSize(), clampVectorIndex(), DL, llvm::LLT::getElementType(), llvm::LLT::getSizeInBits(), MIRBuilder, and llvm::Mul.
Referenced by lowerExtractInsertVectorElt(), lowerVECTOR_COMPRESS(), and llvm::CombinerHelper::matchCombineExtractedVectorLoad().
◆ legalizeInstrStep()
| LegalizerHelper::LegalizeResult LegalizerHelper::legalizeInstrStep | ( | MachineInstr & | MI, |
| LostDebugLocObserver & | LocObserver ) |
Replace MI by a sequence of legal instructions that can implement the same operation.
Note that this means MI may be deleted, so any iterator steps should be performed before calling this function. Helper should be initialized to the MachineFunction containing MI.
Considered as an opaque blob, the legal code will use and define the same registers as MI.
Definition at line 119 of file LegalizerHelper.cpp.
References AlreadyLegal, llvm::LegalizeActions::Bitcast, bitcast(), llvm::LegalizeActions::Custom, llvm::dbgs(), llvm::LegalizeActions::FewerElements, fewerElementsVector(), llvm::isa(), llvm::IRSimilarity::Legal, Legalized, llvm::LegalizeActions::Libcall, libcall, LLVM_DEBUG, llvm::Lower, lower(), MI, MIRBuilder, llvm::LegalizeActions::MoreElements, moreElementsVector(), llvm::LegalizeActions::NarrowScalar, narrowScalar(), UnableToLegalize, llvm::LegalizeActions::WidenScalar, and widenScalar().
Referenced by llvm::Legalizer::legalizeMachineFunction().
◆ libcall()
| LegalizerHelper::LegalizeResult LegalizerHelper::libcall | ( | MachineInstr & | MI, |
| LostDebugLocObserver & | LocObserver ) |
Legalize an instruction by emiting a runtime library call instead.
Definition at line 1309 of file LegalizerHelper.cpp.
References conversionLibcall(), createAtomicLibcall(), llvm::createLibcall(), llvm::createMemLibcall(), llvm::dbgs(), llvm::IntegerType::get(), getFloatTypeForLLT(), llvm::Type::getIntNTy(), getRTLibDesc(), llvm::LLT::getSizeInBits(), Legalized, llvm::LegalizeActions::Libcall, LLVM_DEBUG, MI, MIRBuilder, simpleLibcall(), Size, and UnableToLegalize.
◆ lower()
| LegalizerHelper::LegalizeResult LegalizerHelper::lower | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Legalize an instruction by splitting it into simpler parts, hopefully understood by the target.
Definition at line 4515 of file LegalizerHelper.cpp.
References assert(), llvm::cast(), llvm::LLT::getScalarSizeInBits(), llvm::APInt::getSignMask(), GISEL_VECREDUCE_CASES_NONSEQ, llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULT, Legalized, lowerAbsDiffToMinMax(), lowerAbsDiffToSelect(), lowerAbsToAddXor(), lowerAddSubSatToAddoSubo(), lowerAddSubSatToMinMax(), lowerBitcast(), lowerBitCount(), lowerBitreverse(), lowerBswap(), lowerDIVREM(), lowerDynStackAlloc(), lowerEXT(), lowerExtract(), lowerExtractInsertVectorElt(), lowerFAbs(), lowerFConstant(), lowerFCopySign(), lowerFFloor(), lowerFMad(), lowerFMinimumMaximum(), lowerFMinNumMaxNum(), lowerFPOWI(), lowerFPTOINT_SAT(), lowerFPTOSI(), lowerFPTOUI(), lowerFPTRUNC(), lowerFunnelShift(), lowerInsert(), lowerIntrinsicRound(), lowerISFPCLASS(), lowerLoad(), lowerMemCpyFamily(), lowerMergeValues(), lowerMinMax(), lowerReadWriteRegister(), lowerRotate(), lowerSADDE(), lowerSADDO_SSUBO(), lowerSelect(), lowerShlSat(), lowerShuffleVector(), lowerSITOFP(), lowerSMULH_UMULH(), lowerSSUBE(), lowerStackRestore(), lowerStackSave(), lowerStore(), lowerThreewayCompare(), lowerTRUNC(), lowerUITOFP(), lowerUnmergeValues(), lowerVAArg(), lowerVECTOR_COMPRESS(), lowerVectorReduction(), MI, MIRBuilder, Observer, TII, and UnableToLegalize.
Referenced by llvm::RISCVLegalizerInfo::legalizeCustom(), and legalizeInstrStep().
◆ lowerAbsDiffToMinMax()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAbsDiffToMinMax | ( | MachineInstr & | MI | ) |
Definition at line 10183 of file LegalizerHelper.cpp.
References assert(), Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerAbsDiffToSelect()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAbsDiffToSelect | ( | MachineInstr & | MI | ) |
Definition at line 10160 of file LegalizerHelper.cpp.
References assert(), llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_UGT, Legalized, MI, MIRBuilder, and llvm::LLT::scalar().
Referenced by lower().
◆ lowerAbsToAddXor()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAbsToAddXor | ( | MachineInstr & | MI | ) |
Definition at line 10115 of file LegalizerHelper.cpp.
References llvm::Add, llvm::LLT::getScalarSizeInBits(), Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerAbsToCNeg()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAbsToCNeg | ( | MachineInstr & | MI | ) |
Definition at line 10147 of file LegalizerHelper.cpp.
References llvm::CmpInst::ICMP_SGT, Legalized, MI, MIRBuilder, llvm::LLT::scalar(), and llvm::Sub.
Referenced by llvm::AArch64LegalizerInfo::legalizeCustom().
◆ lowerAbsToMaxNeg()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAbsToMaxNeg | ( | MachineInstr & | MI | ) |
Definition at line 10132 of file LegalizerHelper.cpp.
References Legalized, MI, MIRBuilder, and llvm::Sub.
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingImpl(), and llvm::RISCVLegalizerInfo::legalizeCustom().
◆ lowerAddSubSatToAddoSubo()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAddSubSatToAddoSubo | ( | MachineInstr & | MI | ) |
Definition at line 9598 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementSize(), llvm::APInt::getSignedMinValue(), Legalized, llvm_unreachable, MI, and MIRBuilder.
Referenced by lower().
◆ lowerAddSubSatToMinMax()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerAddSubSatToMinMax | ( | MachineInstr & | MI | ) |
Definition at line 9523 of file LegalizerHelper.cpp.
References llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignedMinValue(), llvm::Hi, Legalized, llvm_unreachable, llvm::Lo, MI, and MIRBuilder.
Referenced by lower().
◆ lowerBitcast()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerBitcast | ( | MachineInstr & | MI | ) |
Definition at line 3636 of file LegalizerHelper.cpp.
References llvm::LLT::fixed_vector(), llvm::LLT::getElementType(), getUnmergePieces(), Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by lower().
◆ lowerBitCount()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerBitCount | ( | MachineInstr & | MI | ) |
Definition at line 7593 of file LegalizerHelper.cpp.
References assert(), B(), llvm::LegalizeActions::Custom, llvm::APInt::getSplat(), llvm::CmpInst::ICMP_EQ, llvm::IRSimilarity::Legal, Legalized, llvm::LegalizeActions::Libcall, MI, MIRBuilder, Observer, Opc, llvm::PowerOf2Ceil(), Size, TII, UnableToLegalize, and llvm::LegalizeActions::WidenScalar.
Referenced by lower().
◆ lowerBitreverse()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerBitreverse | ( | MachineInstr & | MI | ) |
Definition at line 9740 of file LegalizerHelper.cpp.
References llvm::LLT::fixed_vector(), llvm::APInt::getSplat(), MI, MIRBuilder, Size, and SwapN().
Referenced by lower().
◆ lowerBswap()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerBswap | ( | MachineInstr & | MI | ) |
Definition at line 9695 of file LegalizerHelper.cpp.
References Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerConstant()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerConstant | ( | MachineInstr & | MI | ) |
Definition at line 3614 of file LegalizerHelper.cpp.
References emitLoadFromConstantPool(), llvm::MachineOperand::getCImm(), Legalized, MI, and MIRBuilder.
Referenced by llvm::ARMLegalizerInfo::legalizeCustom(), and llvm::RISCVLegalizerInfo::legalizeCustom().
◆ lowerDIVREM()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerDIVREM | ( | MachineInstr & | MI | ) |
Definition at line 10098 of file LegalizerHelper.cpp.
References Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerDynStackAlloc()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerDynStackAlloc | ( | MachineInstr & | MI | ) |
Definition at line 9252 of file LegalizerHelper.cpp.
References llvm::assumeAligned(), getDynStackAllocTargetPtr(), llvm::TargetSubtargetInfo::getFrameLowering(), llvm::MachineFunction::getSubtarget(), Legalized, MI, MIRBuilder, SPReg, llvm::TargetFrameLowering::StackGrowsUp, and UnableToLegalize.
Referenced by lower().
◆ lowerEXT()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerEXT | ( | MachineInstr & | MI | ) |
Definition at line 7900 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementCount(), llvm::LLT::changeElementSize(), llvm::details::FixedOrScalableQuantity< LeafTy, ValueTy >::divideCoefficientBy(), llvm::LLT::getElementCount(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getSizeInBits(), llvm::isPowerOf2_32(), Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by lower().
◆ lowerExtract()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerExtract | ( | MachineInstr & | MI | ) |
Definition at line 9297 of file LegalizerHelper.cpp.
References Legalized, MI, MIRBuilder, llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LLT::scalar(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by lower().
◆ lowerExtractInsertVectorElt()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerExtractInsertVectorElt | ( | MachineInstr & | MI | ) |
Lower a vector extract or insert by writing the vector to a stack temporary and reloading the element or vector.
dst = G_EXTRACT_VECTOR_ELT vec, idx => stack_temp = G_FRAME_INDEX G_STORE vec, stack_temp idx = clamp(idx, vec.getNumElements()) element_ptr = G_PTR_ADD stack_temp, idx dst = G_LOAD element_ptr
Definition at line 9029 of file LegalizerHelper.cpp.
References llvm::commonAlignment(), createStackTemporary(), llvm::dbgs(), llvm::extractParts(), llvm::LLT::getElementType(), llvm::TypeSize::getFixed(), llvm::LLT::getNumElements(), llvm::LLT::getSizeInBytes(), getStackTemporaryAlignment(), getVectorElementPointer(), llvm::MachinePointerInfo::getWithOffset(), llvm::LLT::isByteSized(), Legalized, LLVM_DEBUG, llvm::MIPatternMatch::m_ICst(), MI, llvm::MIPatternMatch::mi_match(), MIRBuilder, llvm::Offset, and UnableToLegalize.
Referenced by fewerElementsVectorExtractInsertVectorElt(), and lower().
◆ lowerFAbs()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFAbs | ( | MachineInstr & | MI | ) |
Definition at line 10207 of file LegalizerHelper.cpp.
References llvm::APInt::getSignedMaxValue(), Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerFConstant()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFConstant | ( | MachineInstr & | MI | ) |
Definition at line 3625 of file LegalizerHelper.cpp.
References emitLoadFromConstantPool(), llvm::MachineOperand::getFPImm(), Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerFCopySign()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFCopySign | ( | MachineInstr & | MI | ) |
Definition at line 8718 of file LegalizerHelper.cpp.
References llvm::MachineInstr::Disjoint, llvm::APInt::getLowBitsSet(), llvm::APInt::getSignMask(), Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerFFloor()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFFloor | ( | MachineInstr & | MI | ) |
Definition at line 8925 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementSize(), llvm::CmpInst::FCMP_OLT, llvm::CmpInst::FCMP_ONE, Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerFMad()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFMad | ( | MachineInstr & | MI | ) |
Definition at line 8878 of file LegalizerHelper.cpp.
References Legalized, MI, MIRBuilder, and llvm::Mul.
Referenced by llvm::AMDGPULegalizerInfo::legalizeFMad(), and lower().
◆ lowerFMinimumMaximum()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFMinimumMaximum | ( | MachineInstr & | MI | ) |
Definition at line 8808 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementSize(), llvm::CmpInst::FCMP_OEQ, llvm::CmpInst::FCMP_OGT, llvm::CmpInst::FCMP_OLT, llvm::CmpInst::FCMP_ORD, llvm::fcNegZero, llvm::fcPosZero, llvm::fcZero, llvm::MachineInstr::FmNoNans, llvm::MachineInstr::FmNsz, llvm::getFltSemanticForLLT(), llvm::APFloat::getNaN(), getReg(), llvm::isKnownNeverNaN(), llvm::KnownFPClass::isKnownNeverZero(), llvm::LLT::isScalar(), Legalized, MI, MIRBuilder, and Opc.
Referenced by lower().
◆ lowerFMinNumMaxNum()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFMinNumMaxNum | ( | MachineInstr & | MI | ) |
Definition at line 8760 of file LegalizerHelper.cpp.
References llvm::MachineInstr::FmNoNans, llvm::isKnownNeverSNaN(), Legalized, llvm_unreachable, MI, and MIRBuilder.
Referenced by llvm::AMDGPULegalizerInfo::legalizeMinNumMaxNum(), and lower().
◆ lowerFPOWI()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFPOWI | ( | MachineInstr & | MI | ) |
Definition at line 8631 of file LegalizerHelper.cpp.
References Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerFPTOINT_SAT()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFPTOINT_SAT | ( | MachineInstr & | MI | ) |
Definition at line 8404 of file LegalizerHelper.cpp.
References llvm::APFloat::convertFromAPInt(), llvm::CmpInst::FCMP_OGT, llvm::CmpInst::FCMP_OLT, llvm::CmpInst::FCMP_ULT, llvm::CmpInst::FCMP_UNO, llvm::MachineInstr::FmNoNans, llvm::getFltSemanticForLLT(), llvm::APInt::getMaxValue(), llvm::APInt::getMinValue(), llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignedMinValue(), Legalized, MI, MIRBuilder, llvm::APFloatBase::opInexact, and llvm::APFloatBase::rmTowardZero.
Referenced by lower().
◆ lowerFPTOSI()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFPTOSI | ( | MachineInstr & | MI | ) |
Definition at line 8339 of file LegalizerHelper.cpp.
References llvm::Exponent, llvm::APInt::getSignMask(), llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLT, Legalized, MI, MIRBuilder, S1, S32, S64, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerFPTOUI()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFPTOUI | ( | MachineInstr & | MI | ) |
Definition at line 8299 of file LegalizerHelper.cpp.
References llvm::APFloat::convertFromAPInt(), llvm::CmpInst::FCMP_ULT, llvm::APInt::getSignMask(), llvm::APInt::getZero(), llvm::APFloatBase::IEEEdouble(), llvm::APFloatBase::IEEEsingle(), Legalized, MI, MIRBuilder, llvm::APFloatBase::rmNearestTiesToEven, S1, S32, S64, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerFPTRUNC()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFPTRUNC | ( | MachineInstr & | MI | ) |
Definition at line 8620 of file LegalizerHelper.cpp.
References lowerFPTRUNC_F64_TO_F16(), MI, S16, S64, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerFPTRUNC_F64_TO_F16()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFPTRUNC_F64_TO_F16 | ( | MachineInstr & | MI | ) |
Definition at line 8505 of file LegalizerHelper.cpp.
References assert(), B(), D(), llvm::MachineInstr::FmAfn, I, llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLT, Legalized, MI, MIRBuilder, N, S1, S32, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lowerFPTRUNC().
◆ lowerFunnelShift()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFunnelShift | ( | MachineInstr & | MI | ) |
◆ lowerFunnelShiftAsShifts()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFunnelShiftAsShifts | ( | MachineInstr & | MI | ) |
Definition at line 7822 of file LegalizerHelper.cpp.
References llvm::MachineInstr::Disjoint, llvm::LLT::getScalarSizeInBits(), isNonZeroModBitWidthOrUndef(), llvm::isPowerOf2_32(), Legalized, MI, MIRBuilder, X, and Y.
◆ lowerFunnelShiftWithInverse()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerFunnelShiftWithInverse | ( | MachineInstr & | MI | ) |
Definition at line 7783 of file LegalizerHelper.cpp.
References getReg(), llvm::LLT::getScalarSizeInBits(), isNonZeroModBitWidthOrUndef(), llvm::isPowerOf2_32(), Legalized, MI, MIRBuilder, UnableToLegalize, X, and Y.
◆ lowerInsert()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerInsert | ( | MachineInstr & | MI | ) |
Definition at line 9351 of file LegalizerHelper.cpp.
References llvm::dbgs(), DL, llvm::LLT::getAddressSpace(), llvm::APInt::getBitsSetWithWrap(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::LLT::getSizeInBits(), llvm::LLT::isPointer(), llvm::LLT::isScalar(), llvm::LLT::isVector(), Legalized, LLVM_DEBUG, MI, MIRBuilder, llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerIntrinsicRound()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerIntrinsicRound | ( | MachineInstr & | MI | ) |
Definition at line 8892 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementSize(), llvm::CmpInst::FCMP_OGE, Legalized, MI, MIRBuilder, T, and X.
Referenced by lower().
◆ lowerISFPCLASS()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerISFPCLASS | ( | MachineInstr & | MI | ) |
Definition at line 9867 of file LegalizerHelper.cpp.
References llvm::APFloat::bitcastToAPInt(), llvm::fcAllFlags, llvm::fcFinite, llvm::fcInf, llvm::fcNan, llvm::fcNegFinite, llvm::fcNegNormal, llvm::fcNegSubnormal, llvm::fcNone, llvm::fcNormal, llvm::fcPosFinite, llvm::fcPosInf, llvm::fcPosNormal, llvm::fcPosSubnormal, llvm::fcPosZero, llvm::fcQNan, llvm::fcSubnormal, llvm::fcZero, llvm::APInt::getActiveBits(), llvm::APInt::getAllOnes(), llvm::getFltSemanticForLLT(), llvm::getImm(), llvm::APFloat::getInf(), llvm::APFloat::getLargest(), llvm::APInt::getOneBitSet(), llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignMask(), llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_UGE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULT, Legalized, MI, MIRBuilder, llvm::LLT::scalar(), llvm::APInt::shl(), and llvm::LLT::vector().
Referenced by lower().
◆ lowerLoad()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerLoad | ( | GAnyLoad & | MI | ) |
Definition at line 4136 of file LegalizerHelper.cpp.
References assert(), llvm::bit_floor(), llvm::MachineInstr::eraseFromParent(), llvm::LLT::fixed_vector(), llvm::GMemOperation::getAlign(), llvm::Function::getContext(), llvm::GAnyLoad::getDstReg(), llvm::LLT::getElementType(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineMemOperand::getMemoryType(), llvm::GMemOperation::getMMO(), llvm::LLT::getNumElements(), llvm::MachineInstr::getOpcode(), llvm::MachineMemOperand::getPointerInfo(), llvm::GLoadStore::getPointerReg(), llvm::GenericMachineInstr::getReg(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getSizeInBits(), llvm::LLT::getSizeInBytes(), llvm::isa(), llvm::LLT::isPointer(), llvm::isPowerOf2_32(), llvm::isPowerOf2_64(), llvm::LLT::isVector(), Legalized, MIRBuilder, llvm::NextPowerOf2(), llvm::PowerOf2Ceil(), reduceLoadStoreWidth(), llvm::LLT::scalar(), UnableToLegalize, and llvm::Align::value().
Referenced by lower().
◆ lowerMemCpyFamily()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerMemCpyFamily | ( | MachineInstr & | MI, |
| unsigned | MaxLen = 0 ) |
Definition at line 10765 of file LegalizerHelper.cpp.
References assert(), llvm::getIConstantVRegValWithLookThrough(), llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), Legalized, MI, Opc, shouldLowerMemFuncForSize(), and UnableToLegalize.
Referenced by lower(), and llvm::CombinerHelper::tryCombineMemCpyFamily().
◆ lowerMemcpyInline()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerMemcpyInline | ( | MachineInstr & | MI | ) |
Definition at line 10512 of file LegalizerHelper.cpp.
References assert(), llvm::getIConstantVRegValWithLookThrough(), Legalized, and MI.
◆ lowerMergeValues()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerMergeValues | ( | MachineInstr & | MI | ) |
Definition at line 8951 of file LegalizerHelper.cpp.
References AbstractManglingParser< Derived, Alloc >::NumOps, llvm::dbgs(), I, Legalized, LLVM_DEBUG, MI, MIRBuilder, llvm::Offset, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerMinMax()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerMinMax | ( | MachineInstr & | MI | ) |
Definition at line 8656 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementSize(), Legalized, MI, minMaxToCompare(), and MIRBuilder.
Referenced by lower().
◆ lowerReadWriteRegister()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerReadWriteRegister | ( | MachineInstr & | MI | ) |
Definition at line 9809 of file LegalizerHelper.cpp.
References llvm::cast(), llvm::StringRef::data(), llvm::LLVMContext::diagnose(), llvm::Function::getContext(), llvm::MachineFunction::getFunction(), llvm::MDString::getString(), Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerRotate()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerRotate | ( | MachineInstr & | MI | ) |
Definition at line 8010 of file LegalizerHelper.cpp.
References MI, and MIRBuilder.
Referenced by lower().
◆ lowerRotateWithReverseRotate()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerRotateWithReverseRotate | ( | MachineInstr & | MI | ) |
Definition at line 7999 of file LegalizerHelper.cpp.
References Legalized, MI, and MIRBuilder.
◆ lowerSADDE()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerSADDE | ( | MachineInstr & | MI | ) |
Definition at line 9479 of file LegalizerHelper.cpp.
References llvm::CmpInst::ICMP_SLT, Legalized, MI, MIRBuilder, and T.
Referenced by lower().
◆ lowerSADDO_SSUBO()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerSADDO_SSUBO | ( | MachineInstr & | MI | ) |
Definition at line 9441 of file LegalizerHelper.cpp.
References llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLT, Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerSelect()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerSelect | ( | MachineInstr & | MI | ) |
Definition at line 10040 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementType(), Legalized, MI, MIRBuilder, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerShlSat()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerShlSat | ( | MachineInstr & | MI | ) |
Definition at line 9664 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::changeElementSize(), llvm::APInt::getMaxValue(), llvm::LLT::getScalarSizeInBits(), llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignedMinValue(), llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SLT, Legalized, MI, and MIRBuilder.
Referenced by lower().
◆ lowerShuffleVector()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerShuffleVector | ( | MachineInstr & | MI | ) |
Definition at line 9101 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::getScalarType(), Legalized, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LLT::scalar(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::try_emplace().
Referenced by lower().
◆ lowerSITOFP()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerSITOFP | ( | MachineInstr & | MI | ) |
Definition at line 8253 of file LegalizerHelper.cpp.
References llvm::CmpInst::ICMP_NE, Legalized, loweri64tof16ITOFP(), MI, MIRBuilder, S1, S32, S64, llvm::LLT::scalar(), UnableToLegalize, and llvm::Xor.
Referenced by lower().
◆ lowerSMULH_UMULH()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerSMULH_UMULH | ( | MachineInstr & | MI | ) |
Definition at line 9845 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementSize(), llvm::LLT::getScalarSizeInBits(), Legalized, MI, MIRBuilder, and llvm::Mul.
Referenced by lower().
◆ lowerSSUBE()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerSSUBE | ( | MachineInstr & | MI | ) |
Definition at line 9501 of file LegalizerHelper.cpp.
References llvm::CmpInst::ICMP_SLT, Legalized, MI, MIRBuilder, and T.
Referenced by lower().
◆ lowerStackRestore()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerStackRestore | ( | MachineInstr & | MI | ) |
Definition at line 9286 of file LegalizerHelper.cpp.
References Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by lower().
◆ lowerStackSave()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerStackSave | ( | MachineInstr & | MI | ) |
Definition at line 9275 of file LegalizerHelper.cpp.
References Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by lower().
◆ lowerStore()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerStore | ( | GStore & | MI | ) |
Definition at line 4288 of file LegalizerHelper.cpp.
References llvm::bit_floor(), llvm::MachineInstr::eraseFromParent(), llvm::Function::getContext(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineMemOperand::getMemoryType(), llvm::MachineMemOperand::getPointerInfo(), llvm::GLoadStore::getPointerReg(), llvm::LLT::getSizeInBits(), llvm::LLT::getSizeInBytes(), llvm::GStore::getValueReg(), llvm::isPowerOf2_32(), llvm::LLT::isVector(), Legalized, llvm::MachineInstr::memoperands_begin(), MIRBuilder, llvm::PowerOf2Ceil(), reduceLoadStoreWidth(), llvm::LLT::scalar(), scalarizeVectorBooleanStore(), and UnableToLegalize.
Referenced by lower().
◆ lowerThreewayCompare()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerThreewayCompare | ( | MachineInstr & | MI | ) |
Definition at line 8670 of file LegalizerHelper.cpp.
References llvm::cast(), llvm::LLT::changeElementSize(), llvm::getApproximateEVTForLLT(), llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULT, llvm::LLT::isVector(), Legalized, MI, MIRBuilder, std::swap(), llvm::TargetLoweringBase::UndefinedBooleanContent, and llvm::TargetLoweringBase::ZeroOrNegativeOneBooleanContent.
Referenced by lower().
◆ lowerTRUNC()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerTRUNC | ( | MachineInstr & | MI | ) |
Definition at line 7942 of file LegalizerHelper.cpp.
References assert(), llvm::LLT::changeElementCount(), llvm::LLT::changeElementSize(), llvm::extractParts(), llvm::LLT::getNumElements(), llvm::LLT::getScalarSizeInBits(), llvm::isPowerOf2_32(), llvm::LLT::isVector(), Legalized, Merge, MI, MIRBuilder, and UnableToLegalize.
Referenced by lower().
◆ lowerU64ToF32BitOps()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerU64ToF32BitOps | ( | MachineInstr & | MI | ) |
Definition at line 8080 of file LegalizerHelper.cpp.
References assert(), llvm::CallingConv::C, llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_UGT, Legalized, MI, MIRBuilder, S1, S32, S64, llvm::LLT::scalar(), llvm::Sub, and T.
◆ lowerU64ToF32WithSITOFP()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerU64ToF32WithSITOFP | ( | MachineInstr & | MI | ) |
Definition at line 8138 of file LegalizerHelper.cpp.
References assert(), llvm::CmpInst::ICMP_SLT, Legalized, MI, MIRBuilder, S1, S32, S64, and llvm::LLT::scalar().
Referenced by lowerUITOFP().
◆ lowerU64ToF64BitFloatOps()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerU64ToF64BitFloatOps | ( | MachineInstr & | MI | ) |
Definition at line 8173 of file LegalizerHelper.cpp.
References assert(), llvm::bit_cast(), Legalized, MI, MIRBuilder, S32, S64, and llvm::LLT::scalar().
Referenced by lowerUITOFP().
◆ lowerUITOFP()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerUITOFP | ( | MachineInstr & | MI | ) |
Definition at line 8223 of file LegalizerHelper.cpp.
References Legalized, loweri64tof16ITOFP(), lowerU64ToF32WithSITOFP(), lowerU64ToF64BitFloatOps(), MI, MIRBuilder, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lower().
◆ lowerUnmergeValues()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerUnmergeValues | ( | MachineInstr & | MI | ) |
Definition at line 8989 of file LegalizerHelper.cpp.
References coerceToScalar(), llvm::LLT::getSizeInBits(), I, llvm::LLT::isPointer(), Legalized, MI, MIRBuilder, llvm::Offset, and UnableToLegalize.
Referenced by lower().
◆ lowerVAArg()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerVAArg | ( | MachineInstr & | MI | ) |
Definition at line 10242 of file LegalizerHelper.cpp.
References A(), DL, llvm::Function::getContext(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getMachineMemOperand(), llvm::LLT::getSizeInBits(), llvm::getTypeForLLT(), Legalized, llvm::Log2(), MI, MIRBuilder, llvm::MachineMemOperand::MOLoad, llvm::MachineMemOperand::MOStore, and llvm::LLT::scalar().
Referenced by lower().
◆ lowerVECTOR_COMPRESS()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerVECTOR_COMPRESS | ( | llvm::MachineInstr & | MI | ) |
Definition at line 9142 of file LegalizerHelper.cpp.
References createStackTemporary(), llvm::LLT::getElementType(), llvm::TypeSize::getFixed(), llvm::LLT::getNumElements(), llvm::MachineInstrBuilder::getReg(), llvm::LLT::getSizeInBits(), getStackTemporaryAlignment(), llvm::MachinePointerInfo::getUnknownStack(), getVectorElementPointer(), I, llvm::CmpInst::ICMP_UGT, llvm::isConstantOrConstantSplatVector(), Legalized, MI, MIRBuilder, llvm::report_fatal_error(), and llvm::LLT::scalar().
Referenced by lower().
◆ lowerVectorReduction()
| LegalizerHelper::LegalizeResult LegalizerHelper::lowerVectorReduction | ( | MachineInstr & | MI | ) |
Definition at line 10224 of file LegalizerHelper.cpp.
References llvm::LLT::getSizeInBits(), Legalized, MI, MIRBuilder, Observer, and UnableToLegalize.
Referenced by lower().
◆ moreElementsVector()
| LegalizerHelper::LegalizeResult LegalizerHelper::moreElementsVector | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | MoreTy ) |
Legalize a vector instruction by increasing the number of vector elements involved and ignoring the added elements later.
Definition at line 6638 of file LegalizerHelper.cpp.
References llvm::LLT::changeElementCount(), llvm::LLT::fixed_vector(), llvm::ElementCount::get(), llvm::LLT::getElementCount(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::LLT::getScalarType(), llvm::LLT::isScalable(), Legalized, MI, MIRBuilder, moreElementsVectorDst(), moreElementsVectorPhi(), moreElementsVectorShuffle(), moreElementsVectorSrc(), Observer, Opc, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::MachineOperand::setReg(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by legalizeInstrStep().
◆ moreElementsVectorDst()
| void LegalizerHelper::moreElementsVectorDst | ( | MachineInstr & | MI, |
| LLT | MoreTy, | ||
| unsigned | OpIdx ) |
Legalize a single operand OpIdx of the machine instruction MI as a Def by performing it with additional vector elements and extracting the result elements, and replacing the vreg of the operand in place.
Definition at line 2172 of file LegalizerHelper.cpp.
References llvm::MachineOperand::getReg(), MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by equalizeVectorShuffleLengths(), llvm::AMDGPULegalizerInfo::legalizeSBufferLoad(), moreElementsVector(), moreElementsVectorPhi(), and moreElementsVectorShuffle().
◆ moreElementsVectorPhi()
| LegalizerHelper::LegalizeResult LegalizerHelper::moreElementsVectorPhi | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | MoreTy ) |
Definition at line 6582 of file LegalizerHelper.cpp.
References assert(), llvm::MachineBasicBlock::getFirstTerminator(), I, Legalized, MBB, MI, MIRBuilder, moreElementsVectorDst(), moreElementsVectorSrc(), and Observer.
Referenced by moreElementsVector().
◆ moreElementsVectorShuffle()
| LegalizerHelper::LegalizeResult LegalizerHelper::moreElementsVectorShuffle | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | MoreTy ) |
Definition at line 6967 of file LegalizerHelper.cpp.
References equalizeVectorShuffleLengths(), llvm::LLT::getNumElements(), I, Legalized, MI, MIRBuilder, moreElementsVectorDst(), moreElementsVectorSrc(), and UnableToLegalize.
Referenced by moreElementsVector().
◆ moreElementsVectorSrc()
| void LegalizerHelper::moreElementsVectorSrc | ( | MachineInstr & | MI, |
| LLT | MoreTy, | ||
| unsigned | OpIdx ) |
Legalize a single operand OpIdx of the machine instruction MI as a Use by producing a vector with undefined high elements, extracting the original vector type, and replacing the vreg of the operand in place.
Definition at line 2182 of file LegalizerHelper.cpp.
References MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by moreElementsVector(), moreElementsVectorPhi(), and moreElementsVectorShuffle().
◆ narrowScalar()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalar | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Legalize an instruction by reducing the width of the underlying scalar type.
Definition at line 1541 of file LegalizerHelper.cpp.
References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addUse(), llvm::append_range(), assert(), llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::CallingConv::C, llvm::cast(), llvm::dbgs(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), llvm::extractParts(), llvm::LLT::getElementCount(), llvm::MachineBasicBlock::getFirstTerminatorForward(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getSizeInBits(), llvm::MachineMemOperand::getSizeInBits(), llvm::ICmpInst::getUnsignedPredicate(), llvm::LocationSize::getValue(), I, llvm::CmpInst::ICMP_EQ, llvm::isa(), llvm::ICmpInst::isEquality(), llvm::LLT::isVector(), Legalized, LLVM_DEBUG, llvm::APInt::lshr(), MBB, MI, MIRBuilder, narrowScalarAddSub(), narrowScalarBasic(), narrowScalarCTLZ(), narrowScalarCTPOP(), narrowScalarCTTZ(), narrowScalarDst(), narrowScalarExt(), narrowScalarExtract(), narrowScalarFLDEXP(), narrowScalarFPTOI(), narrowScalarInsert(), narrowScalarMul(), narrowScalarSelect(), narrowScalarShift(), narrowScalarSrc(), Observer, llvm::Offset, OpIdx, llvm::SmallVectorTemplateBase< T, bool >::push_back(), reduceLoadStoreWidth(), llvm::LLT::scalar(), llvm::MachineOperand::setReg(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::APInt::trunc(), UnableToLegalize, llvm::LLT::vector(), llvm::Xor, and llvm::zip().
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingImpl(), llvm::MipsRegisterBankInfo::applyMappingImpl(), llvm::AMDGPURegisterBankInfo::applyMappingLoad(), and legalizeInstrStep().
◆ narrowScalarAddSub()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarAddSub | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 7071 of file LegalizerHelper.cpp.
References llvm::SmallVectorImpl< T >::append(), llvm::ArrayRef(), llvm::extractParts(), Legalized, llvm_unreachable, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorImpl< T >::reserve(), llvm::LLT::scalar(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarBasic()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarBasic | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7371 of file LegalizerHelper.cpp.
References assert(), llvm::extractParts(), I, Legalized, llvm_unreachable, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarCTLZ()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarCTLZ | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7479 of file LegalizerHelper.cpp.
References B(), llvm::LLT::getSizeInBits(), llvm::CmpInst::ICMP_EQ, Legalized, MI, MIRBuilder, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarCTPOP()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarCTPOP | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7545 of file LegalizerHelper.cpp.
References llvm::LLT::getSizeInBits(), Legalized, MI, MIRBuilder, and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarCTTZ()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarCTTZ | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7512 of file LegalizerHelper.cpp.
References B(), llvm::LLT::getSizeInBits(), llvm::CmpInst::ICMP_EQ, Legalized, MI, MIRBuilder, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarDst()
| void LegalizerHelper::narrowScalarDst | ( | MachineInstr & | MI, |
| LLT | NarrowTy, | ||
| unsigned | OpIdx, | ||
| unsigned | ExtOpcode ) |
Definition at line 2163 of file LegalizerHelper.cpp.
References MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by narrowScalar(), and narrowScalarFPTOI().
◆ narrowScalarExt()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarExt | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7412 of file LegalizerHelper.cpp.
References llvm::LLT::isVector(), Legalized, MI, and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarExtract()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarExtract | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7222 of file LegalizerHelper.cpp.
References llvm::extractParts(), llvm::LLT::getSizeInBits(), Legalized, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LLT::scalar(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarFLDEXP()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarFLDEXP | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7568 of file LegalizerHelper.cpp.
References B(), llvm::LLT::getScalarSizeInBits(), Legalized, llvm::maxIntN(), MI, llvm::minIntN(), MIRBuilder, Observer, and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarFPTOI()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarFPTOI | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7197 of file LegalizerHelper.cpp.
References llvm::LLT::getScalarSizeInBits(), Legalized, MI, narrowScalarDst(), Observer, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarInsert()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarInsert | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7289 of file LegalizerHelper.cpp.
References llvm::SmallVectorImpl< T >::append(), llvm::extractParts(), llvm::LLT::getSizeInBits(), I, Legalized, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::LLT::scalar(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarMul()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarMul | ( | MachineInstr & | MI, |
| LLT | Ty ) |
Definition at line 7167 of file LegalizerHelper.cpp.
References llvm::extractParts(), llvm::LLT::getSizeInBits(), Legalized, MI, MIRBuilder, Size, and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarSelect()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarSelect | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 7433 of file LegalizerHelper.cpp.
References llvm::extractParts(), I, llvm::LLT::isVector(), Legalized, llvm_unreachable, MI, MIRBuilder, llvm::SmallVectorTemplateBase< T, bool >::push_back(), Select, llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarShift()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarShift | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | Ty ) |
Definition at line 6100 of file LegalizerHelper.cpp.
References llvm::getIConstantVRegValWithLookThrough(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getSizeInBits(), llvm::Hi, llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_ULT, llvm::LLT::isScalar(), llvm::LLT::isValid(), llvm::LLT::isVector(), Legalized, llvm_unreachable, llvm::Lo, MI, MIRBuilder, narrowScalarShiftByConstant(), narrowScalarShiftMultiway(), narrowScalarSrc(), Observer, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by narrowScalar().
◆ narrowScalarShiftByConstant()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarShiftByConstant | ( | MachineInstr & | MI, |
| const APInt & | Amt, | ||
| LLT | HalfTy, | ||
| LLT | ShiftAmtTy ) |
Definition at line 6012 of file LegalizerHelper.cpp.
References llvm::LLT::getSizeInBits(), llvm::Hi, llvm::APInt::isZero(), Legalized, llvm::Lo, MI, MIRBuilder, Register, and llvm::APInt::ugt().
Referenced by narrowScalarShift().
◆ narrowScalarShiftByConstantMultiway()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarShiftByConstantMultiway | ( | MachineInstr & | MI, |
| const APInt & | Amt, | ||
| LLT | TargetTy, | ||
| LLT | ShiftAmtTy ) |
Optimized path for constant shift amounts using static indexing.
Directly calculates which source parts contribute to each output part without generating runtime select chains.
Definition at line 6369 of file LegalizerHelper.cpp.
References assert(), llvm::LegalizerHelper::ShiftParams::BitShift, buildConstantShiftPart(), llvm::extractParts(), llvm::LLT::getScalarSizeInBits(), llvm::APInt::getZExtValue(), I, llvm::LegalizerHelper::ShiftParams::InvBitShift, llvm::APInt::isZero(), Legalized, MI, MIRBuilder, llvm::LegalizerHelper::ShiftParams::SignBit, llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::LegalizerHelper::ShiftParams::WordShift, and llvm::LegalizerHelper::ShiftParams::Zero.
Referenced by narrowScalarShiftMultiway().
◆ narrowScalarShiftMultiway()
| LegalizerHelper::LegalizeResult LegalizerHelper::narrowScalarShiftMultiway | ( | MachineInstr & | MI, |
| LLT | TargetTy ) |
Multi-way shift legalization: directly split wide shifts into target-sized parts in a single step, avoiding recursive binary splitting.
Definition at line 6429 of file LegalizerHelper.cpp.
References assert(), buildVariableShiftPart(), llvm::extractParts(), llvm::getIConstantVRegValWithLookThrough(), llvm::LLT::getScalarSizeInBits(), I, llvm::CmpInst::ICMP_EQ, llvm::isPowerOf2_32(), Legalized, llvm_unreachable, llvm::Log2_32(), MI, MIRBuilder, narrowScalarShiftByConstantMultiway(), and llvm::LLT::scalar().
Referenced by narrowScalarShift().
◆ narrowScalarSrc()
| void LegalizerHelper::narrowScalarSrc | ( | MachineInstr & | MI, |
| LLT | NarrowTy, | ||
| unsigned | OpIdx ) |
Legalize a single operand OpIdx of the machine instruction MI as a Use by truncating the operand's type to NarrowTy using G_TRUNC, and replacing the vreg of the operand in place.
Definition at line 2147 of file LegalizerHelper.cpp.
References MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by narrowScalar(), and narrowScalarShift().
◆ reduceLoadStoreWidth()
| LegalizerHelper::LegalizeResult LegalizerHelper::reduceLoadStoreWidth | ( | GLoadStore & | MI, |
| unsigned | TypeIdx, | ||
| LLT | NarrowTy ) |
Definition at line 5410 of file LegalizerHelper.cpp.
References llvm::dbgs(), llvm::MachineInstr::eraseFromParent(), llvm::extractParts(), llvm::MachineFunction::getMachineMemOperand(), llvm::GMemOperation::getMemSize(), llvm::GMemOperation::getMMO(), getNarrowTypeBreakDown(), llvm::GLoadStore::getPointerReg(), llvm::GenericMachineInstr::getReg(), llvm::LLT::getSizeInBits(), llvm::LocationSize::getValue(), llvm::isa(), llvm::GMemOperation::isAtomic(), isBigEndian(), llvm::LLT::isByteSized(), llvm::LLT::isValid(), Legalized, LLVM_DEBUG, MIRBuilder, llvm::Offset, llvm::LLT::scalar(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and UnableToLegalize.
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingLoad(), fewerElementsVector(), lowerLoad(), lowerStore(), and narrowScalar().
◆ scalarizeVectorBooleanStore()
| LegalizerHelper::LegalizeResult LegalizerHelper::scalarizeVectorBooleanStore | ( | GStore & | MI | ) |
Given a store of a boolean vector, scalarize it.
Definition at line 4383 of file LegalizerHelper.cpp.
References assert(), llvm::MachineInstr::eraseFromParent(), llvm::MachineFunction::getDataLayout(), llvm::LLT::getElementType(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineMemOperand::getMemoryType(), llvm::LLT::getNumElements(), llvm::MachineMemOperand::getPointerInfo(), llvm::GLoadStore::getPointerReg(), llvm::LLT::getSizeInBits(), llvm::GStore::getValueReg(), I, llvm::DataLayout::isBigEndian(), llvm::LLT::isByteSized(), Legalized, llvm::MachineInstr::memoperands_begin(), MIRBuilder, llvm::LLT::scalar(), and UnableToLegalize.
Referenced by lowerStore().
◆ widenScalar()
| LegalizerHelper::LegalizeResult LegalizerHelper::widenScalar | ( | MachineInstr & | MI, |
| unsigned | TypeIdx, | ||
| LLT | WideTy ) |
Legalize an instruction by performing the operation on a wider scalar type (for example a 16-bit addition can be safely performed at 32-bits precision, ignoring the unused bits).
Definition at line 2731 of file LegalizerHelper.cpp.
References assert(), llvm::APFloat::bitcastToAPInt(), llvm::cast(), llvm::LLT::changeElementType(), llvm::APInt::getAllOnes(), llvm::getApproximateEVTForLLT(), llvm::GInsertSubvector::getBigVec(), llvm::MachineOperand::getCImm(), llvm::LLT::getElementCount(), llvm::LLT::getElementType(), llvm::MachineBasicBlock::getFirstTerminatorForward(), llvm::MachineOperand::getFPImm(), llvm::GInsertSubvector::getIndexImm(), llvm::MachineFunction::getMachineMemOperand(), llvm::APInt::getOneBitSet(), llvm::MachineMemOperand::getPointerInfo(), llvm::GenericMachineInstr::getReg(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getScalarType(), llvm::APInt::getSignedMaxValue(), llvm::APInt::getSignedMinValue(), llvm::LLT::getSizeInBits(), llvm::GInsertSubvector::getSubVec(), llvm::ConstantInt::getValue(), llvm::ConstantFP::getValueAPF(), I, llvm::CmpInst::ICMP_NE, llvm::CmpInst::isSigned(), llvm::LLT::isVector(), Legalized, MBB, MI, MIRBuilder, Observer, llvm::MachineOperand::setCImm(), llvm::APInt::sext(), UnableToLegalize, llvm::LLT::vector(), widenScalarDst(), widenScalarSrc(), and llvm::APInt::zext().
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingImpl(), and legalizeInstrStep().
◆ widenScalarDst()
| void LegalizerHelper::widenScalarDst | ( | MachineInstr & | MI, |
| LLT | WideTy, | ||
| unsigned | OpIdx = 0, | ||
| unsigned | TruncOpcode = TargetOpcode::G_TRUNC ) |
Legalize a single operand OpIdx of the machine instruction MI as a Def by extending the operand's type to WideTy and truncating it back with the TruncOpcode, and replacing the vreg of the operand in place.
Definition at line 2154 of file LegalizerHelper.cpp.
References MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingImpl(), llvm::RISCVLegalizerInfo::legalizeCustom(), llvm::AMDGPULegalizerInfo::legalizeSBufferLoad(), and widenScalar().
◆ widenScalarSrc()
| void LegalizerHelper::widenScalarSrc | ( | MachineInstr & | MI, |
| LLT | WideTy, | ||
| unsigned | OpIdx, | ||
| unsigned | ExtOpcode ) |
Legalize a single operand OpIdx of the machine instruction MI as a Use by extending the operand's type to WideTy using the specified ExtOpcode for the extension instruction, and replacing the vreg of the operand in place.
Definition at line 2140 of file LegalizerHelper.cpp.
References MI, MIRBuilder, OpIdx, and llvm::MachineOperand::setReg().
Referenced by llvm::AMDGPURegisterBankInfo::applyMappingImpl(), llvm::RISCVLegalizerInfo::legalizeCustom(), llvm::RISCVLegalizerInfo::legalizeIntrinsic(), and widenScalar().
Member Data Documentation
◆ MIRBuilder
| MachineIRBuilder& llvm::LegalizerHelper::MIRBuilder |
Expose MIRBuilder so clients can set their own RecordInsertInstruction functions.
Definition at line 53 of file LegalizerHelper.h.
Referenced by bitcastDst(), bitcastExtractSubvector(), bitcastExtractVectorElt(), bitcastInsertSubvector(), bitcastInsertVectorElt(), bitcastShuffleVector(), bitcastSrc(), buildConstantShiftPart(), llvm::AMDGPULegalizerInfo::buildMultiply(), buildVariableShiftPart(), coerceToScalar(), convertPtrToInt(), createStackStoreLoad(), createStackTemporary(), equalizeVectorShuffleLengths(), fewerElementsBitcast(), fewerElementsVectorExtractInsertVectorElt(), fewerElementsVectorMerge(), fewerElementsVectorMultiEltType(), fewerElementsVectorPhi(), fewerElementsVectorReductions(), fewerElementsVectorSeqReductions(), fewerElementsVectorShuffle(), fewerElementsVectorUnmergeValues(), getDynStackAllocTargetPtr(), getVectorElementPointer(), llvm::AMDGPULegalizerInfo::legalizeBufferLoad(), llvm::AMDGPULegalizerInfo::legalizeBufferStore(), llvm::AArch64LegalizerInfo::legalizeCustom(), llvm::AMDGPULegalizerInfo::legalizeCustom(), llvm::ARMLegalizerInfo::legalizeCustom(), llvm::MipsLegalizerInfo::legalizeCustom(), llvm::RISCVLegalizerInfo::legalizeCustom(), llvm::SPIRVLegalizerInfo::legalizeCustom(), llvm::X86LegalizerInfo::legalizeCustom(), legalizeInstrStep(), llvm::AArch64LegalizerInfo::legalizeIntrinsic(), llvm::AMDGPULegalizerInfo::legalizeIntrinsic(), llvm::MipsLegalizerInfo::legalizeIntrinsic(), llvm::RISCVLegalizerInfo::legalizeIntrinsic(), llvm::AMDGPULegalizerInfo::legalizeLaneOp(), llvm::AMDGPULegalizerInfo::legalizeLoad(), llvm::Legalizer::legalizeMachineFunction(), llvm::AMDGPULegalizerInfo::legalizeMinNumMaxNum(), llvm::AMDGPULegalizerInfo::legalizeMul(), LegalizerHelper(), LegalizerHelper(), llvm::AMDGPULegalizerInfo::legalizeSBufferLoad(), llvm::AMDGPULegalizerInfo::legalizeSBufferPrefetch(), llvm::AMDGPULegalizerInfo::legalizeStore(), libcall(), lower(), lowerAbsDiffToMinMax(), lowerAbsDiffToSelect(), lowerAbsToAddXor(), lowerAbsToCNeg(), lowerAbsToMaxNeg(), lowerAddSubSatToAddoSubo(), lowerAddSubSatToMinMax(), lowerBitcast(), lowerBitCount(), lowerBitreverse(), lowerBswap(), lowerConstant(), lowerDIVREM(), lowerDynStackAlloc(), lowerEXT(), lowerExtract(), lowerExtractInsertVectorElt(), lowerFAbs(), lowerFConstant(), lowerFCopySign(), lowerFFloor(), lowerFMad(), lowerFMinimumMaximum(), lowerFMinNumMaxNum(), lowerFPOWI(), lowerFPTOINT_SAT(), lowerFPTOSI(), lowerFPTOUI(), lowerFPTRUNC_F64_TO_F16(), lowerFunnelShiftAsShifts(), lowerFunnelShiftWithInverse(), lowerInsert(), lowerIntrinsicRound(), lowerISFPCLASS(), lowerLoad(), lowerMergeValues(), lowerMinMax(), lowerReadWriteRegister(), lowerRotate(), lowerRotateWithReverseRotate(), lowerSADDE(), lowerSADDO_SSUBO(), lowerSelect(), lowerShlSat(), lowerShuffleVector(), lowerSITOFP(), lowerSMULH_UMULH(), lowerSSUBE(), lowerStackRestore(), lowerStackSave(), lowerStore(), lowerThreewayCompare(), lowerTRUNC(), lowerU64ToF32BitOps(), lowerU64ToF32WithSITOFP(), lowerU64ToF64BitFloatOps(), lowerUITOFP(), lowerUnmergeValues(), lowerVAArg(), lowerVECTOR_COMPRESS(), lowerVectorReduction(), moreElementsVector(), moreElementsVectorDst(), moreElementsVectorPhi(), moreElementsVectorShuffle(), moreElementsVectorSrc(), narrowScalar(), narrowScalarAddSub(), narrowScalarBasic(), narrowScalarCTLZ(), narrowScalarCTPOP(), narrowScalarCTTZ(), narrowScalarDst(), narrowScalarExtract(), narrowScalarFLDEXP(), narrowScalarInsert(), narrowScalarMul(), narrowScalarSelect(), narrowScalarShift(), narrowScalarShiftByConstant(), narrowScalarShiftByConstantMultiway(), narrowScalarShiftMultiway(), narrowScalarSrc(), reduceLoadStoreWidth(), scalarizeVectorBooleanStore(), widenScalar(), widenScalarDst(), and widenScalarSrc().
◆ Observer
| GISelChangeObserver& llvm::LegalizerHelper::Observer |
To keep track of changes made by the LegalizerHelper.
Definition at line 56 of file LegalizerHelper.h.
Referenced by bitcast(), llvm::AMDGPULegalizerInfo::legalizeBufferLoad(), llvm::AArch64LegalizerInfo::legalizeCustom(), llvm::RISCVLegalizerInfo::legalizeCustom(), llvm::AArch64LegalizerInfo::legalizeIntrinsic(), llvm::AMDGPULegalizerInfo::legalizeIntrinsic(), llvm::RISCVLegalizerInfo::legalizeIntrinsic(), llvm::AMDGPULegalizerInfo::legalizeLoad(), LegalizerHelper(), LegalizerHelper(), llvm::AMDGPULegalizerInfo::legalizeSBufferLoad(), llvm::AMDGPULegalizerInfo::legalizeSBufferPrefetch(), llvm::AMDGPULegalizerInfo::legalizeStore(), lower(), lowerBitCount(), lowerVectorReduction(), moreElementsVector(), moreElementsVectorPhi(), narrowScalar(), narrowScalarFLDEXP(), narrowScalarFPTOI(), narrowScalarShift(), and widenScalar().
The documentation for this class was generated from the following files:
- include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
- lib/CodeGen/GlobalISel/LegalizerHelper.cpp
Generated on for LLVM by
1.14.0