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Definition at line80 of fileAPInt.h.

Definition at line88 of fileAPInt.h.

Create a newAPInt of numBits width, initialized as val.

If isSigned is true then val is treated as if it were a signed value (i.e. as an int64_t) and the appropriate sign extension to the bit width will be done. Otherwise, no sign extension occurs (high order bits beyond the range of val are zero filled).

Parameters

numBits	the bit width of the constructedAPInt
val	the initial value of theAPInt
isSigned	how to treat signedness of val
implicitTrunc	allow implicit truncation of non-zero/sign bits of val beyond the range of numBits

Definition at line111 of fileAPInt.h.

Referencesassert(),BitWidth,clearUnusedBits(),llvm::isIntN(),isSigned(), andllvm::isUIntN().

Construct anAPInt of numBits width, initialized as bigVal[].

Note that bigVal.size() can be smaller or larger than the corresponding bit width but any extraneous bits will be dropped.

Parameters

numBits	the bit width of the constructedAPInt
bigVal	a sequence of words to form the initial value of theAPInt

Definition at line107 of fileAPInt.cpp.

Equivalent to APInt(numBits, ArrayRef<uint64_t>(bigVal, numWords)), but deprecated because this constructor is prone to ambiguity with the APInt(unsigned, uint64_t, bool) constructor.

If this overload is ever deleted, care should be taken to prevent calls from being incorrectly captured by the APInt(unsigned, uint64_t, bool) constructor.

Definition at line111 of fileAPInt.cpp.

Construct anAPInt from a string representation.

This constructor interprets the stringstr in the given radix. The interpretation stops when the first character that is not suitable for the radix is encountered, or the end of the string. Acceptable radix values are 2, 8, 10, 16, and 36. It is an error for the value implied by the string to require more bits than numBits.

Parameters

numBits	the bit width of the constructedAPInt
str	the string to be interpreted
radix	the radix to use for the conversion

Definition at line116 of fileAPInt.cpp.

Default constructor that creates anAPInt with a 1-bit zero value.

Definition at line173 of fileAPInt.h.

Referenced bybyteSwap(),extractBits(),operator*(),reverseBits(),sext(),sqrt(),sshl_ov(),trunc(),udiv(),udivrem(),urem(),ushl_ov(),usub_sat(), andzext().

Copy Constructor.

Definition at line176 of fileAPInt.h.

ReferencesVAL.

Move Constructor.

Definition at line184 of fileAPInt.h.

Destructor.

Definition at line190 of fileAPInt.h.

Get the absolute value.

If *this is < 0 then return -(*this), otherwise *this. Note that the "most negative" signed number (e.g. -128 for 8 bit wideAPInt) is unchanged due to how negation works.

Definition at line1773 of fileAPInt.h.

Referenced bycombineSelectOfTwoConstants(),findGCD(),llvm::SelectionDAG::FoldConstantArithmetic(),llvm::InstCombinerImpl::foldICmpBinOp(),llvm::InstCombinerImpl::foldICmpSRemConstant(),gcd(),llvm::ScalarEvolution::getAddExpr(),llvm::ExpressionFormat::getMatchingString(), andgetRangeForAffineARHelper().

Arithmetic right-shift function.

Arithmetic right-shift thisAPInt by shiftAmt.

Definition at line908 of fileAPInt.h.

Arithmetic right-shift function.

Arithmetic right-shift thisAPInt by shiftAmt.

Definition at line827 of fileAPInt.h.

Referenced byllvm::ConstantRange::ashr(),llvm::ConstantFoldBinaryInstruction(),llvm::ConstantFoldBinOp(),llvm::InstCombinerImpl::foldICmpAndShift(),llvm::InstCombinerImpl::foldICmpShlConstant(),llvm::InstCombinerImpl::foldICmpShrConstant(),llvm::InstCombinerImpl::foldICmpShrConstConst(),FoldValue(),llvm::AArch64TTIImpl::getIntImmCost(),llvm::X86TTIImpl::getIntImmCost(),llvm::RISCVMatInt::getIntMatCost(),isNonZeroShift(),LowerShift(),performMulCombine(),setLimitsForBinOp(),llvm::InstCombinerImpl::simplifyShrShlDemandedBits(),llvm::Interpreter::visitAShr(), andllvm::InstCombinerImpl::visitSwitchInst().

Arithmetic right-shift thisAPInt by shiftAmt in place.

Arithmetic right-shift thisAPInt by shiftAmt.

Arithmetic right-shift function.

Definition at line1025 of fileAPInt.cpp.

ReferencesashrInPlace(), andgetLimitedValue().

Arithmetic right-shift thisAPInt by ShiftAmt in place.

Definition at line834 of fileAPInt.h.

Referencesassert(),BitWidth,clearUnusedBits(), andllvm::SignExtend64().

Referenced byllvm::KnownBits::ashr(),ashrInPlace(),BuildExactSDIV(),llvm::CombinerHelper::buildSDivUsingMul(),combineVectorShiftImm(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(), andllvm::SelectionDAG::FoldConstantArithmetic().

ConvertsAPInt bits to a double.

The conversion does not do a translation from integer to double, it just re-interprets the bits as a double. Note that it is valid to do this on any bit width. Exactly 64 bits will be translated.

Definition at line1700 of fileAPInt.h.

Referenced byllvm::detail::IEEEFloat::convertToDouble(),llvm::convertToNonDenormSingle(), andllvm::ExecutionEngine::getConstantValue().

ConvertsAPInt bits to a float.

The conversion does not do a translation from integer to float, it just re-interprets the bits as a float. Note that it is valid to do this on any bit width. Exactly 32 bits will be translated.

Definition at line1714 of fileAPInt.h.

Referenced byllvm::detail::IEEEFloat::convertToFloat(), andllvm::ExecutionEngine::getConstantValue().

Returns

a byte-swapped representation of thisAPIntValue.

Definition at line719 of fileAPInt.cpp.

ReferencesAPInt(),APINT_BITS_PER_WORD,assert(),getNumWords(),I, andN.

Referenced byllvm::DwarfExpression::addConstantFP(),llvm::KnownBits::byteSwap(),computeKnownBitsFromOperator(),foldBitwiseLogicWithIntrinsics(),llvm::SelectionDAG::FoldConstantArithmetic(), andllvm::TargetLowering::SimplifyDemandedBits().

Returns

the ceil log base 2 of thisAPInt.

Definition at line1742 of fileAPInt.h.

ReferencesgetActiveBits().

Referenced byComputeNumSignBitsImpl(), andllvm::InstCombinerImpl::foldICmpUsingKnownBits().

Set every bit to 0.

Definition at line1397 of fileAPInt.h.

Referenced byllvm::slpvectorizer::BoUpSLP::canVectorizeLoads(),combineAnd(),combineAndnp(),computeForSatAddSub(),llvm::SelectionDAG::computeKnownBits(),llvm::RISCVTargetLowering::computeKnownBitsForTargetNode(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(),computeKnownBitsFromOperator(),llvm::KnownBits::resetAll(),llvm::KnownBits::setAllOnes(),llvm::KnownBits::setAllZero(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::InstCombinerImpl::SimplifyDemandedVectorElts(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(), andllvm::InstCombinerImpl::simplifyShrShlDemandedBits().

Set a given bit to 0.

Set the given bit to 0 whose position is given as "bitPosition".

Definition at line1407 of fileAPInt.h.

Referencesassert(), andBitWidth.

Referenced byllvm::SelectionDAG::computeKnownBits(),computeKnownBitsFromOperator(),computeKnownFPClass(),llvm::SelectionDAG::ComputeNumSignBits(),defaultComponentBroadcast(),llvm::TargetLowering::expandIS_FPCLASS(),getHopForBuildVector(),getSignedMaxValue(),isKnownNonZeroFromOperator(),llvm::possiblyDemandedEltsInMask(),llvm::recognizeBSwapOrBitReverseIdiom(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::InstCombinerImpl::SimplifyDemandedVectorElts(),llvm::X86TTIImpl::simplifyDemandedVectorEltsIntrinsic(),trimTrailingZerosInVector(), andllvm::ConstantRange::truncate().

Set top hiBits bits to 0.

Definition at line1424 of fileAPInt.h.

Referencesassert(),BitWidth, andllvm::Keep.

Referenced byllvm::TargetLowering::SimplifyDemandedBits().

Set bottom loBits bits to 0.

Definition at line1417 of fileAPInt.h.

Referencesassert(),BitWidth, andllvm::Keep.

Referenced bycomputeForSatAddSub(),llvm::SelectionDAG::computeKnownBits(),llvm::GISelKnownBits::computeKnownBitsImpl(),llvm::KnownBits::makeGE(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), andllvm::ConstantRange::toKnownBits().

Set the sign bit to 0.

Definition at line1431 of fileAPInt.h.

ReferencesBitWidth.

Referenced byllvm::KnownBits::abs(),computeForSatAddSub(),computeKnownBitsFromOperator(),foldLogOpOfMaskedICmps_NotAllZeros_BMask_Mixed(), andllvm::ConstantRange::fromKnownBits().

Concatenate the bits from "NewLSB" onto the bottom of *this.

This is equivalent to: (this->zext(NewWidth) << NewLSB.getBitWidth()) | NewLSB.zext(NewWidth)

If the result will be small, then both the merged values are small.

Definition at line947 of fileAPInt.h.

ReferencesgetBitWidth(),getBitWidth(), andVAL.

Referenced byllvm::KnownBits::concat().

Count the number of leading one bits.

This function is anAPInt version of std::countl_one. It counts the number of ones from the most significant bit to the first zero bit.

Returns

0 if the high order bit is not set, otherwise returns the number of 1 bits from the most significant to the least

Definition at line1594 of fileAPInt.h.

ReferencesBitWidth,llvm::countl_one(), andLLVM_UNLIKELY.

Referenced byllvm::KnownBits::computeForAddSub(),llvm::KnownBits::countMinLeadingOnes(),llvm::KnownBits::countMinLeadingZeros(),llvm::ConstantRange::ctpop(),llvm::InstCombinerImpl::foldICmpShrConstConst(),lower1BitShuffle(),lowerShuffleAsByteShiftMask(),lowerShuffleAsVALIGN(),lowerShuffleAsVTRUNCAndUnpack(),llvm::CombinerHelper::matchCombineShlOfExtend(),llvm::ConstantRange::shl(), andsshl_ov().

TheAPInt version of std::countl_zero.

It counts the number of zeros from the most significant bit to the first one bit.

Returns

BitWidth if the value is zero, otherwise returns the number of zeros from the most significant bit to the first one bits.

Definition at line1577 of fileAPInt.h.

ReferencesBitWidth, andllvm::countl_zero().

Referenced byareUsedBitsDense(),bitTrackingDCE(),llvm::TargetLowering::BuildUDIV(),llvm::CombinerHelper::buildUDivUsingMul(),llvm::KnownBits::computeForAddSub(),llvm::SelectionDAG::computeKnownBits(),llvm::KnownBits::countMaxLeadingOnes(),llvm::KnownBits::countMaxLeadingZeros(),llvm::SelectionDAG::FoldConstantArithmetic(),llvm::InstCombinerImpl::foldICmpShrConstant(),llvm::InstCombinerImpl::foldICmpShrConstConst(),llvm::ShuffleVectorInst::isInsertSubvectorMask(),llvm::KnownBits::mul(),PerformBFICombine(),processUMulZExtIdiom(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::InstCombinerImpl::SimplifyMultipleUseDemandedBits(),sshl_ov(),tryBitfieldInsertOpFromOr(),umul_ov(),ushl_ov(), andllvm::InstCombinerImpl::visitAdd().

Definition at line1603 of fileAPInt.h.

Referencesllvm::countl_one().

Referenced bycomputeShlNSWWithNegLHS(), andfoldNegativePower2AndShiftedMask().

Definition at line1585 of fileAPInt.h.

Referencesllvm::countl_zero().

Referenced bycomputeShlNSWWithNNegLHS(),computeShlNUW(),foldNegativePower2AndShiftedMask(),foldSelectICmpAndZeroShl(),llvm::KnownBits::sdiv(),llvm::TargetLowering::SimplifyDemandedBits(), andllvm::KnownBits::udiv().

Count the number of trailing one bits.

This function is anAPInt version of std::countr_one. It counts the number of ones from the least significant bit to the first zero bit.

Returns

BitWidth if the value is all ones, otherwise returns the number of ones from the least significant bit to the first zero bit.

Definition at line1635 of fileAPInt.h.

Referencesllvm::countr_one().

Referenced bycombineAndMaskToShift(),combineShiftRightLogical(),llvm::KnownBits::countMinTrailingOnes(),llvm::KnownBits::countMinTrailingZeros(),llvm::InstCombinerImpl::foldICmpEquality(),foldSubCtlzNot(),lowerShuffleAsByteShiftMask(),lowerShuffleAsVALIGN(),llvm::CombinerHelper::matchCombineLoadWithAndMask(),PerformMinMaxToSatCombine(),llvm::TargetLowering::SimplifySetCC(), andllvm::ConstantRange::truncate().

Count the number of trailing zero bits.

This function is anAPInt version of std::countr_zero. It counts the number of zeros from the least significant bit to the first set bit.

Returns

BitWidth if the value is zero, otherwise returns the number of zeros from the least significant bit to the first one bit.

Definition at line1618 of fileAPInt.h.

ReferencesBitWidth, andllvm::countr_zero().

Referenced byareUsedBitsDense(),BuildExactSDIV(),BuildExactUDIV(),llvm::TargetLowering::buildSDIVPow2WithCMov(),llvm::CombinerHelper::buildSDivUsingMul(),llvm::CombinerHelper::buildUDivUsingMul(),canEvaluateShifted(),canonicalizeLogicFirst(),checkForNegativeOperand(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(),llvm::KnownBits::countMaxTrailingOnes(),llvm::KnownBits::countMaxTrailingZeros(),EltsFromConsecutiveLoads(),llvm::TargetLowering::expandDIVREMByConstant(),llvm::SelectionDAG::FoldConstantArithmetic(),llvm::InstCombinerImpl::foldICmpShlConstant(),llvm::InstCombinerImpl::foldICmpShlConstConst(),llvm::InstCombinerImpl::foldICmpUsingKnownBits(),getPowerOf2Factor(),llvm::BuildVectorSDNode::getSplatValue(),isAligned(),llvm::ShuffleVectorInst::isInsertSubvectorMask(),PerformBFICombine(),performMulCombine(),processUGT_ADDCST_ADD(),simplifyAMDGCNMemoryIntrinsicDemanded(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),simplifyDiv(),llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(),llvm::TargetLowering::SimplifySetCC(),tryBitfieldInsertOpFromOr(),llvm::InstCombinerImpl::visitAdd(),llvm::InstCombinerImpl::visitAnd(),llvm::InstCombinerImpl::visitMul(),llvm::InstCombinerImpl::visitSDiv(), andllvm::InstCombinerImpl::visitSub().

Definition at line1641 of fileAPInt.h.

Referencesllvm::countr_one().

Definition at line1626 of fileAPInt.h.

Referencesllvm::countr_zero().

Referenced byllvm::ScalarEvolution::getSmallConstantTripMultiple().

Converts a double toAPInt bits.

The conversion does not do a translation from double to integer, it just re-interprets the bits of the double.

Definition at line1722 of fileAPInt.h.

Referenced byllvm::ExecutionEngine::getConstantValue(), andllvm::detail::IEEEFloat::IEEEFloat().

debug method

Definition at line2272 of fileAPInt.cpp.

Referencesllvm::dbgs(),toStringSigned(), andtoStringUnsigned().

Equality comparison.

Compares thisAPInt with RHS for the validity of the equality relationship.

Returns

true if *this == Val

Definition at line1079 of fileAPInt.h.

ReferencesRHS.

Referenced bycombineShiftRightArithmetic(),llvm::omp::getBestVariantMatchForContext(),processUMulZExtIdiom(), andllvm::InstCombinerImpl::visitLShr().

Returns

the log base 2 of thisAPInt if its an exact power of two, -1 otherwise

Definition at line1761 of fileAPInt.h.

Referenced bycombineAnd(),foldAddToAshr(),isSaturatingMinMax(),llvm::LoongArchDAGToDAGISel::selectVSplatUimmPow2(),llvm::InstCombinerImpl::visitAnd(), andllvm::InstCombinerImpl::visitTrunc().

Return anAPInt with the extracted bits [bitPosition,bitPosition+numBits).

Definition at line455 of fileAPInt.cpp.

ReferencesAPInt(),APINT_BITS_PER_WORD,assert(),getNumWords(), andisSingleWord().

Referenced bycombineX86ShufflesRecursively(),llvm::SelectionDAG::computeKnownBits(),llvm::SelectionDAG::ComputeNumSignBits(),computeZeroableShuffleElements(),EltsFromConsecutiveLoads(),llvm::KnownBits::extractBits(),llvm::extractConstantMask(),llvm::SelectionDAG::getConstant(),getConstantVector(),getExactInteger(),llvm::SelectionDAG::getNode(),llvm::X86TTIImpl::getScalarizationOverhead(),getTargetConstantBitsFromNode(),llvm::BuildVectorSDNode::isConstantSplat(),llvm::SelectionDAG::isSplatValue(),LowerBuildVectorv16i8(),lowerShuffleAsVTRUNC(),lowerShuffleWithVPMOV(),matchShuffleAsVTRUNC(),llvm::APIntOps::mulhs(),llvm::APIntOps::mulhu(),llvm::BuildVectorSDNode::recastRawBits(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::TargetLowering::SimplifyDemandedVectorElts(), andllvm::TargetLowering::SimplifyMultipleUseDemandedBits().

Definition at line493 of fileAPInt.cpp.

ReferencesAPINT_BITS_PER_WORD,assert(), andisSingleWord().

Referenced bygetMaxShiftAmount().

Toggle every bit to its opposite value.

Definition at line1434 of fileAPInt.h.

ReferencesclearUnusedBits().

Referenced byllvm::InstCombinerImpl::foldICmpSRemConstant(),getUsefulBits(),getUsefulBitsFromBFM(), andinsert1BitVector().

Toggles a given bit to its opposite value.

Toggle a given bit to its opposite value whose position is given as "bitPosition".

Toggles a given bit to its opposite value.

Definition at line365 of fileAPInt.cpp.

Referencesassert(), andsetBitVal().

Converts a float toAPInt bits.

The conversion does not do a translation from float to integer, it just re-interprets the bits of the float.

Definition at line1730 of fileAPInt.h.

Referenced byllvm::ExecutionEngine::getConstantValue(), andllvm::detail::IEEEFloat::IEEEFloat().

Compute the number of active bits in the value.

This function returns the number of active bits which is defined as the bit width minus the number of leading zeros. This is used in several computations to see how "wide" the value is.

Definition at line1492 of fileAPInt.h.

ReferencesBitWidth, andllvm::countl_zero().

Referenced byllvm::APSInt::APSInt(),areUsedBitsDense(),canSafelyConvertTo16Bit(),ceilLogBase2(),llvm::TargetLowering::expandIS_FPCLASS(),llvm::InstCombinerImpl::foldICmpUsingKnownBits(),llvm::ConstantRange::getActiveBits(),llvm::getBitwiseNotOperand(),getConstantTripCount(),getPreferredVectorIndex(),llvm::ScalarEvolution::getSmallConstantTripMultiple(),llvm::LegalizerHelper::lowerISFPCLASS(),llvm::ARMTargetLowering::PerformCMOVToBFICombine(),performSETCCCombine(),rebuildExtCst(),roundToDouble(),simplifyAMDGCNMemoryIntrinsicDemanded(),simplifyAndInst(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::TargetLowering::SimplifySetCC(),sqrt(),llvm::X86TargetLowering::targetShrinkDemandedConstant(),llvm::ConstantRange::truncate(),llvm::tryPromoteCall(),udiv(),urem(), andllvm::InstCombinerImpl::visitICmpInst().

Compute the number of active words in the value of thisAPInt.

This is used in conjunction with getActiveData to extract the raw value of theAPInt.

Definition at line1498 of fileAPInt.h.

Referenced byemitConstantRange().

Return anAPInt of a specified width with all bits set.

Definition at line234 of fileAPInt.h.

Referenced byllvm::analyzeKnownBitsFromAndXorOr(),llvm::ConstantRange::binaryNot(),llvm::buildSelectInst(),llvm::SelectionDAG::canCreateUndefOrPoison(),canTryToConstantAddTwoShiftAmounts(),llvm::slpvectorizer::BoUpSLP::canVectorizeLoads(),combineAddOfPMADDWD(),combineAnd(),combineAndnp(),combineBEXTR(),combineExtractVectorElt(),combineKSHIFT(),combineMOVMSK(),combinePDEP(),combinePMULDQ(),combinePredicateReduction(),combineShuffle(),combineTESTP(),combineVectorCompare(),combineVectorInsert(),combineVectorPack(),combineVectorShiftImm(),combineVectorShiftVar(),combineVPMADD(),combineVTRUNC(),combineX86INT_TO_FP(),combineX86ShuffleChain(),llvm::computeKnownBits(),llvm::SelectionDAG::computeKnownBits(),llvm::ARMTargetLowering::computeKnownBitsForTargetNode(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(),computeKnownBitsFromOperator(),llvm::GISelKnownBits::computeKnownBitsImpl(),llvm::computeKnownFPClass(),computeKnownFPClass(),ComputeNumSignBits(),llvm::GISelKnownBits::computeNumSignBits(),llvm::SelectionDAG::ComputeNumSignBits(),computeShlNSW(),defaultComponentBroadcast(),detectSSatPattern(),llvm::TargetLowering::expandIS_FPCLASS(),findDemandedEltsByAllUsers(),findDemandedEltsBySingleUser(),llvm::InstCombinerImpl::foldICmpUsingKnownBits(),foldICmpUSubSatOrUAddSatWithConstant(),foldSelectICmpLshrAshr(),foldShiftIntoShiftInAnotherHandOfAndInICmp(),llvm::SelectionDAG::getAllOnesConstant(),llvm::APFloat::getAllOnesValue(),llvm::Constant::getAllOnesValue(),getBitcastWiderVectorElementOffset(),llvm::DemandedBits::getDemandedBits(),getDemandedBitsLHSMask(),getDemandedSrcElements(),getFauxShuffleMask(),getHopForBuildVector(),llvm::LoopVectorizationCostModel::getInstructionCost(),llvm::BasicTTIImplBase< T >::getInterleavedMemoryOpCost(),llvm::X86TTIImpl::getInterleavedMemoryOpCostAVX512(),llvm::GISelKnownBits::getKnownBits(),llvm::X86TTIImpl::getMaskedMemoryOpCost(),getRangeForIntrinsic(),llvm::BuildVectorSDNode::getRepeatedSequence(),llvm::BasicTTIImplBase< T >::getScalarizationOverhead(),llvm::SelectionDAG::getSplatSourceVector(),llvm::BuildVectorSDNode::getSplatValue(),getTargetConstantBitsFromNode(),getTargetShuffleInputs(),llvm::SelectionDAG::getValidMaximumShiftAmount(),llvm::SelectionDAG::getValidMinimumShiftAmount(),llvm::SelectionDAG::getValidShiftAmount(),llvm::isConstOrConstSplat(),llvm::isConstOrConstSplatFP(),llvm::SelectionDAG::isGuaranteedNotToBeUndefOrPoison(),llvm::isKnownNonEqual(),llvm::isKnownNonZero(),isKnownNonZeroFromOperator(),isNonZeroShift(),llvm::SelectionDAG::isSplatValue(),llvm::slpvectorizer::BoUpSLP::isTreeTinyAndNotFullyVectorizable(),llvm::LegalizerHelper::lowerISFPCLASS(),lowerShuffleAsElementInsertion(),LowerVectorAllEqual(),llvm::detail::IEEEFloat::makeNaN(),MatchVectorAllEqualTest(),narrowSDivOrSRem(),llvm::AArch64TargetLowering::PerformDAGCombine(),llvm::PPCTargetLowering::PerformDAGCombine(),llvm::possiblyDemandedEltsInMask(),llvm::recognizeBSwapOrBitReverseIdiom(),setLimitsForBinOp(),llvm::TargetLowering::ShrinkDemandedConstant(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::ARMTargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedInstructionBits(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::InstCombinerImpl::SimplifyDemandedVectorElts(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::TargetLowering::SimplifyMultipleUseDemandedBits(),llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(),llvm::TargetLowering::SimplifyMultipleUseDemandedVectorElts(),llvm::InstCombinerImpl::simplifyShrShlDemandedBits(),llvm::APFixedPoint::toString(),trimTrailingZerosInVector(),llvm::LegalizationArtifactCombiner::tryCombineZExt(),llvm::InstCombinerImpl::visitCallInst(),llvm::InstCombinerImpl::visitGetElementPtrInst(),llvm::InstCombinerImpl::visitInsertElementInst(),llvm::InstCombinerImpl::visitLShr(),llvm::InstCombinerImpl::visitShuffleVectorInst(),llvm::InstCombinerImpl::visitXor(), andllvm::LegalizerHelper::widenScalar().

Get bits required for string value.

This method determines how many bits are required to hold theAPInt equivalent of the string given bystr.

Definition at line549 of fileAPInt.cpp.

Referencesassert(),llvm::StringRef::begin(),getSufficientBitsNeeded(),isNegative(),isPowerOf2(),logBase2(), andllvm::StringRef::size().

Get a value with a block of bits set.

Constructs anAPInt value that has a contiguous range of bits set. The bits from loBit (inclusive) to hiBit (exclusive) will be set. All other bits will be zero. For example, with parameters(32, 0, 16) you would get 0x0000FFFF. Please call getBitsSetWithWrap ifloBit may be greater thanhiBit.

Parameters

numBits	the intended bit width of the result
loBit	the index of the lowest bit set.
hiBit	the index of the highest bit set.

Returns

AnAPInt value with the requested bits set.

Definition at line258 of fileAPInt.h.

ReferencessetBits().

Referenced bycombineToExtendBoolVectorInReg(),computeShlNSWWithNNegLHS(),llvm::X86TTIImpl::getMemoryOpCost(),insert1BitVector(),LowerShift(),llvm::AMDGPUTargetLowering::PerformDAGCombine(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),simplifyX86immShift(),tryBitfieldInsertOpFromOr(),tryToMergePartialOverlappingStores(), andllvm::RegisterBankInfo::ValueMapping::verify().

Constructs anAPInt value that has a contiguous range of bits set.

The bits from loBit (inclusive) to numBits (exclusive) will be set. All other bits will be zero. For example, with parameters(32, 12) you would get 0xFFFFF000.

Parameters

numBits	the intended bit width of the result
loBit	the index of the lowest bit to set.

Returns

AnAPInt value with the requested bits set.

Definition at line286 of fileAPInt.h.

ReferencessetBitsFrom().

Referenced bycanEvaluateTruncated(),combine_CC(),combineAddOfBooleanXor(),combineCMP(),combineDeMorganOfBoolean(),combineSetCC(),llvm::SelectionDAG::computeKnownBits(),llvm::slpvectorizer::BoUpSLP::computeMinimumValueSizes(),llvm::APFixedPoint::convert(),extractBits(),getDemandedBitsLHSMask(),llvm::SelectionDAG::getNode(),getTruncatedUSUBSAT(),isCTTZTable(),LowerPARITY(),llvm::RISCVTargetLowering::PerformDAGCombine(),llvm::RISCVDAGToDAGISel::selectZExtBits(),setLimitsForBinOp(),llvm::ConstantRange::shl(),llvm::TargetLowering::SimplifySetCC(),llvm::ConstantRange::truncate(),tryDemorganOfBooleanCondition(), andllvm::InstCombinerImpl::visitTrunc().

Wrap version of getBitsSet.

IfhiBit is bigger thanloBit, this is same with getBitsSet. IfhiBit is not bigger thanloBit, the set bits "wrap". For example, with parameters (32, 28, 4), you would get 0xF000000F. IfhiBit is equal toloBit, you would get a result with all bits set.

Definition at line270 of fileAPInt.h.

ReferencessetBitsWithWrap().

Referenced byllvm::PPCInstrInfo::combineRLWINM(), andllvm::LegalizerHelper::lowerInsert().

Return the number of bits in theAPInt.

Definition at line1468 of fileAPInt.h.

ReferencesBitWidth.

Referenced byllvm::DwarfExpression::addConstantFP(),llvm::DwarfUnit::addConstantValue(),llvm::APFixedPoint::APFixedPoint(),APIntToHexString(),llvm::TargetLowering::BuildUDIV(),llvm::CombinerHelper::buildUDivUsingMul(),canonicalizeGEPOfConstGEPI8(),combineCMov(),combineConcatVectorOps(),combineConstantPoolLoads(),combineSetCCMOVMSK(),combineShiftOfShiftedLogic(),CombineVMOVDRRCandidateWithVecOp(),llvm::InstCombinerImpl::commonIDivTransforms(),CompareSCEVComplexity(),llvm::APSInt::compareValues(),llvm::ObjectSizeOffsetVisitor::compute(),computeKnownBits(),llvm::SelectionDAG::computeKnownBits(),llvm::SystemZTargetLowering::computeKnownBitsForTargetNode(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(),computeKnownBitsFromOperator(),llvm::GISelKnownBits::computeKnownBitsImpl(),computeKnownFPClass(),llvm::SelectionDAG::ComputeNumSignBits(),ComputeNumSignBitsImpl(),llvm::FunctionLoweringInfo::ComputePHILiveOutRegInfo(),computeShlNSWWithNegLHS(),computeShlNSWWithNNegLHS(),llvm::SelectionDAG::computeVectorKnownZeroElements(),concat(),llvm::ConstantFoldBinaryInstruction(),llvm::ConstantFoldBinOp(),llvm::ConstantRange::ConstantRange(),llvm::APFixedPoint::convert(),llvm::APFloat::convertToInteger(),emitGlobalConstantFP(),llvm::BinaryOperation::eval(),llvm::TargetLowering::expandDIVREMByConstant(),extractConstantWithoutWrapping(),extractShiftForRotate(),llvm::InstCombinerImpl::foldAddLikeCommutative(),llvm::SelectionDAG::FoldConstantArithmetic(),llvm::InstCombinerImpl::foldICmpAndConstConst(),llvm::InstCombinerImpl::foldICmpDivConstant(),llvm::InstCombinerImpl::foldICmpEquality(),llvm::InstCombinerImpl::foldICmpShlConstConst(),foldNoWrapAdd(),foldSelectICmpAnd(),FoldValueWithUndef(),getAVX512Node(),llvm::detail::SlowDynamicAPInt::getBitWidth(),llvm::ConstantInt::getBitWidth(),llvm::KnownBits::getBitWidth(),llvm::ExecutionEngine::getConstantValue(),getConstVector(),getFauxShuffleMask(),llvm::getHorizDemandedEltsForFirstOperand(),llvm::SwitchCG::getJumpTableRange(),getKnownUndefForVectorBinop(),llvm::SelectionDAG::getNode(),llvm::ScalarEvolution::getNonZeroConstantMultiple(),getPackDemandedElts(),llvm::getPtrStride(),GetQuadraticEquation(),getRangeForAffineARHelper(),llvm::BuildVectorSDNode::getRepeatedSequence(),llvm::BasicTTIImplBase< T >::getReplicationShuffleCost(),llvm::X86TTIImpl::getScalarizationOverhead(),getShiftAmount(),llvm::BuildVectorSDNode::getSplatValue(),llvm::SelectionDAG::getStepVector(),getStrideFromPointer(),getTargetConstantBitsFromNode(),getUsefulBits(),getUsefulBitsForUse(),getUsefulBitsFromAndWithImmediate(),getUsefulBitsFromBFM(),getUsefulBitsFromBitfieldMoveOpd(),llvm::SelectionDAG::getVScale(),insertBits(),llvm::ConstantRange::intrinsic(),llvm::TargetTransformInfoImplBase::isConstantStridedAccessLessThan(),llvm::TargetLowering::isConstTrueVal(),llvm::SelectionDAG::isGuaranteedNotToBeUndefOrPoison(),llvm::X86TargetLowering::isGuaranteedNotToBeUndefOrPoisonForTargetNode(),llvm::ARMTTIImpl::isHardwareLoopProfitable(),isKnownNonZero(),isKnownNonZeroFromOperator(),isMultiple(),isPoisonShift(),isSameValue(),isSaturatingMinMax(),isSplat(),llvm::SelectionDAG::isSplatValue(),llvm::X86TargetLowering::isSplatValueForTargetNode(),LowerVectorAllEqual(),MatchDiv(),MatchMul(),llvm::APIntOps::mulhs(),llvm::APIntOps::mulhu(),llvm::detail::SlowDynamicAPInt::operator%(),operator*(),llvm::detail::SlowDynamicAPInt::operator-(),optimizeIncrementingWhile(),ParseBFI(),parseHexOcta(),performANDCombine(),performMulCombine(),performORCombine(),PerformORCombine(),PerformSHLSimplify(),PerformUMinFpToSatCombine(),printConstant(),processUMulZExtIdiom(),llvm::BuildVectorSDNode::recastRawBits(),resolveTargetShuffleFromZeroables(),rotateModulo(),llvm::LoongArchDAGToDAGISel::selectShiftMask(),llvm::RISCVDAGToDAGISel::selectShiftMask(),llvm::LoongArchDAGToDAGISel::selectVSplatImm(),llvm::LoongArchDAGToDAGISel::selectVSplatUimmInvPow2(),llvm::LoongArchDAGToDAGISel::selectVSplatUimmPow2(),llvm::APFixedPoint::shl(),llvm::TargetLoweringBase::shouldFoldSelectWithSingleBitTest(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetShuffle(),simplifyICmpWithBinOpOnLHS(),simplifyIntrinsic(),simplifyIRemMulShl(),llvm::InstCombinerImpl::SimplifyMultipleUseDemandedBits(),llvm::TargetLowering::SimplifyMultipleUseDemandedBits(),llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(),llvm::TargetLowering::SimplifySetCC(),sshl_ov(),sshl_sat(),llvm::ConstantRange::subtract(),llvm::SystemZVectorConstantInfo::SystemZVectorConstantInfo(),llvm::X86TargetLowering::targetShrinkDemandedConstant(),toSigned(),toString(),tryToMergePartialOverlappingStores(),ushl_ov(),ushl_sat(),llvm::SCEVDivision::visitConstant(), andllvm::InstCombinerImpl::visitICmpInst().

ConvertAPInt to a boolean value.

This converts theAPInt to a boolean value as a test against zero.

Definition at line471 of fileAPInt.h.

ReferencesisZero().

Referenced byllvm::KnownBits::computeForAddCarry(),llvm::KnownBits::computeForSubBorrow(),llvm::APFixedPoint::getBoolValue(),getPowerOf2Factor(),getTargetConstantBitsFromNode(),llvm::ConstantRange::intrinsic(),isDereferenceableAndAlignedPointer(),llvm::isKnownToBeAPowerOfTwo(),provablyDisjointOr(),llvm::PPCTargetLowering::SelectAddressRegReg(),simplifyAndOfICmpsWithAdd(),simplifyOrOfICmpsWithAdd(),toString(), andwalkToAllocaAndPrependOffsetDeref().

Compute anAPInt containing numBits highbits from thisAPInt.

This function returns the high "numBits" bits of thisAPInt.

Get anAPInt with the same BitWidth as thisAPInt, just zero mask the low bits and right shift to the least significant bit.

Returns

the high "numBits" bits of thisAPInt.

Definition at line612 of fileAPInt.cpp.

Referenceslshr().

Referenced byllvm::SelectionDAG::computeKnownBits(),parseHexOcta(), andWriteAPFloatInternal().

Constructs anAPInt value that has the top hiBitsSet bits set.

Parameters

numBits	the bitwidth of the result
hiBitsSet	the number of high-order bits set in the result.

Definition at line296 of fileAPInt.h.

ReferencessetHighBits().

Referenced bycanEvaluateZExtd(),combineAnd(),combineCMP(),combineMulToPMADDWD(),combineMulToPMULDQ(),combineOr(),combineTargetShuffle(),combineVectorPack(),combineZext(),llvm::ARMTargetLowering::computeKnownBitsForTargetNode(),llvm::AArch64TargetLowering::computeKnownBitsForTargetNode(),llvm::AMDGPUTargetLowering::computeKnownBitsForTargetNode(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(),llvm::computeKnownBitsFromRangeMetadata(),computeShlNUW(),ConstantBuildVector(),EmitCmp(),llvm::TargetLowering::expandFixedPointMul(),llvm::TargetLowering::expandMUL_LOHI(),llvm::InstCombinerImpl::foldAddWithConstant(),llvm::InstCombinerImpl::foldICmpAndConstConst(),llvm::InstCombinerImpl::foldICmpEqIntrinsicWithConstant(),llvm::InstCombinerImpl::foldICmpShrConstant(),llvm::InstCombinerImpl::foldICmpTruncConstant(),foldMaskAndShiftToScale(),foldShiftedShift(),getFauxShuffleMask(),getValueFromICmpCtpop(),isFPSatMinMaxPattern(),llvm::AArch64TTIImpl::isProfitableToSinkOperands(),isTruncWithZeroHighBitsInput(),LowerFunnelShift(),LowerMUL(),LowerShiftByScalarImmediate(),llvm::AMDGPUTargetLowering::LowerUDIVREM64(),matchShuffleWithPACK(),llvm::ARMTargetLowering::PerformDAGCombine(),PerformSHLSimplify(),PerformVMOVNCombine(),PerformVQMOVNCombine(),llvm::RISCVTargetLowering::ReplaceNodeResults(),SaturateWidenedDIVFIX(),selectUmullSmull(),llvm::LoongArchDAGToDAGISel::selectZExti32(),setLimitsForBinOp(),llvm::ConstantRange::signExtend(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::ARMTTIImpl::simplifyDemandedVectorEltsIntrinsic(),llvm::TargetLowering::SimplifySetCC(),simplifyUnaryIntrinsic(),tryLowerToSLI(),llvm::InstCombinerImpl::visitBitCast(),llvm::InstCombinerImpl::visitShl(),llvm::InstCombinerImpl::visitSub(), andllvm::InstCombinerImpl::visitZExt().

If this value is smaller than the specified limit, return it, otherwise return the limit value.

This causes the value to saturate to the limit.

Definition at line475 of fileAPInt.h.

Referenced byadjustByValArgAlignment(),ashrInPlace(),decompose(),extractBits(),llvm::InstCombinerImpl::foldICmpEquality(),llvm::InstCombinerImpl::foldICmpShlConstant(),llvm::InstCombinerImpl::foldICmpShrConstant(),llvm::InstCombinerImpl::foldICmpXorShiftConst(),getAssignmentInfoImpl(),llvm::ConstantInt::getLimitedValue(),getMaxShiftAmount(),llvm::BlockFrequencyInfoImplBase::getProfileCountFromFreq(),getUnsigned(),getValueFromICmpCtpop(),isConstantSplatVectorMaskForType(),lshrInPlace(),operator<<=(),ParseBFI(),rotateModulo(),llvm::scaleProfData(),setShiftFlags(),simplifyAndInst(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),simplifySetCCWithCTPOP(),sshl_ov(),switchToLookupTable(), andushl_ov().

Compute anAPInt containing numBits lowbits from thisAPInt.

This function returns the low "numBits" bits of thisAPInt.

Get anAPInt with the same BitWidth as thisAPInt, just zero mask the high bits.

Returns

the low "numBits" bits of thisAPInt.

Definition at line617 of fileAPInt.cpp.

ReferencesgetLowBitsSet().

Referenced bymatchRotateSub(),llvm::KnownBits::mul(),parseHexOcta(),llvm::X86TTIImpl::simplifyDemandedVectorEltsIntrinsic(), andWriteAPFloatInternal().

Constructs anAPInt value that has the bottom loBitsSet bits set.

Parameters

numBits	the bitwidth of the result
loBitsSet	the number of low-order bits set in the result.

Definition at line306 of fileAPInt.h.

ReferencessetLowBits().

Referenced bybuildBitFieldInsert(),llvm::TargetLowering::buildSDIVPow2WithCMov(),llvm::MachineIRBuilder::buildZExtInReg(),canEvaluateShiftedShift(),clampDynamicVectorIndex(),clampVectorIndex(),combineBT(),combineCMP(),combineCVTPH2PS(),combineMOVMSK(),combinePredicateReduction(),combineSetCCMOVMSK(),combineVEXTRACT_STORE(),llvm::SelectionDAG::computeKnownBits(),llvm::ConstantFoldBinaryInstruction(),llvm::TargetLowering::expandDIVREMByConstant(),llvm::TargetLowering::expandFixedPointMul(),llvm::TargetLowering::expandUnalignedStore(),extractBits(),llvm::InstCombinerImpl::foldICmpBinOp(),llvm::InstCombinerImpl::foldICmpEqIntrinsicWithConstant(),llvm::InstCombinerImpl::foldICmpEquality(),llvm::InstCombinerImpl::foldICmpIntrinsicWithConstant(),llvm::InstCombinerImpl::foldICmpShlConstant(),llvm::InstCombinerImpl::foldICmpTruncConstant(),foldShiftedShift(),llvm::TargetLowering::forceExpandMultiply(),llvm::UnsignedDivisionByConstantInfo::get(),getLoBits(),getShiftedValue(),getTruncatedUSUBSAT(),getValueFromICmpCtpop(),llvm::SelectionDAG::getVPZeroExtendInReg(),llvm::SelectionDAG::getZeroExtendInReg(),llvm::ARMTTIImpl::instCombineIntrinsic(),llvm::X86TTIImpl::instCombineIntrinsic(),lowerBuildVectorViaPacking(),LowerEXTEND_VECTOR_INREG(),llvm::LegalizerHelper::lowerFCopySign(),LowerFunnelShift(),LowerMUL(),LowerShiftByScalarImmediate(),matchRotateSub(),MatchVectorAllEqualTest(),ParseBFI(),llvm::ARMTargetLowering::PerformDAGCombine(),llvm::RISCVTargetLowering::PerformDAGCombine(),llvm::ARMTargetLowering::PerformIntrinsicCombine(),PerformPREDICATE_CASTCombine(),performTBISimplification(),performTruncateCombine(),performVectorShiftCombine(),PerformVMOVhrCombine(),PerformVMOVNCombine(),PerformVQMOVNCombine(),performZExtUZPCombine(),processUGT_ADDCST_ADD(),SaturateWidenedDIVFIX(),llvm::TargetLowering::scalarizeVectorLoad(),llvm::ConstantRange::signExtend(),simplifyAndInst(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::ARMTTIImpl::simplifyDemandedVectorEltsIntrinsic(),simplifyMul24(),llvm::InstCombinerImpl::SimplifyMultipleUseDemandedBits(),llvm::TargetLowering::SimplifySetCC(),simplifyX86insertq(),simplifyX86pack(),simplifyX86VPERMMask(),llvm::X86TargetLowering::targetShrinkDemandedConstant(),tryLowerToSLI(),llvm::InstCombinerImpl::visitAnd(),llvm::InstCombinerImpl::visitCallInst(),llvm::InstCombinerImpl::visitLShr(),llvm::InstCombinerImpl::visitSwitchInst(), andllvm::InstCombinerImpl::visitZExt().

Gets maximum unsigned value ofAPInt for specific bit width.

Definition at line206 of fileAPInt.h.

Referenced byllvm::calculateUpperBound(),llvm::cannotBeMaxInLoop(),llvm::ConstantRange::castOp(),computeForSatAddSub(),detectSSatUPattern(),detectUSatUPattern(),llvm::TargetLowering::expandFixedPointMul(),llvm::TargetLowering::expandFP_TO_INT_SAT(),llvm::TargetLowering::expandShlSat(),foldBoxMultiply(),llvm::InstCombinerImpl::foldFCmpIntToFPConst(),llvm::InstCombinerImpl::foldICmpAddOpConst(),llvm::SCEVExpander::generateOverflowCheck(),getIdentityValueForAtomicOp(),llvm::getMinMaxLimit(),getRangeForAffineARHelper(),getRangeForIntrinsic(),llvm::MinMaxIntrinsic::getSaturationPoint(),llvm::ScalarEvolution::getTripCountFromExitCount(),llvm::ConstantRange::getUnsignedMax(),llvm::ScalarEvolution::getZeroExtendExprImpl(),isSafeIncreasingBound(),llvm::ConstantRange::isSizeLargerThan(),llvm::LegalizerHelper::lowerFPTOINT_SAT(),llvm::LegalizerHelper::lowerShlSat(),llvm::fuzzerop::makeConstantsWithType(),makeExactMulNUWRegion(),llvm::ConstantRange::makeGuaranteedNoWrapRegion(),llvm::X86InstrInfo::optimizeCompareInstr(),processUMulZExtIdiom(),setLimitsForBinOp(),llvm::TargetLowering::SimplifySetCC(),llvm::ConstantRange::truncate(),truncUSat(),uadd_sat(),umul_sat(),ushl_sat(), andllvm::ScalarEvolution::willNotOverflow().

Gets minimum unsigned value ofAPInt for a specific bit width.

Definition at line216 of fileAPInt.h.

Referenced byllvm::cannotBeMinInLoop(),llvm::ConstantRange::castOp(),computeForSatAddSub(),llvm::TargetLowering::expandFP_TO_INT_SAT(),llvm::InstCombinerImpl::foldFCmpIntToFPConst(),getIdentityValueForAtomicOp(),llvm::getMinMaxLimit(),llvm::MinMaxIntrinsic::getSaturationPoint(),llvm::ConstantRange::getUnsignedMin(),getUnsignedOverflowLimitForStep(),isSafeDecreasingBound(),llvm::LegalizerHelper::lowerFPTOINT_SAT(),llvm::ConstantRange::makeAllowedICmpRegion(),llvm::fuzzerop::makeConstantsWithType(),makeExactMulNUWRegion(),llvm::ConstantRange::makeGuaranteedNoWrapRegion(),llvm::TargetLowering::SimplifySetCC(), andllvm::ScalarEvolution::willNotOverflow().

Computes the number of leading bits of thisAPInt that are equal to its sign bit.

Definition at line1607 of fileAPInt.h.

Referencesllvm::countl_one(), andllvm::countl_zero().

Referenced byllvm::SelectionDAG::computeKnownBits(),llvm::SelectionDAG::ComputeNumSignBits(),computeNumSignBitsFromRangeMetadata(),ComputeNumSignBitsImpl(),llvm::FunctionLoweringInfo::ComputePHILiveOutRegInfo(), andllvm::X86TargetLowering::targetShrinkDemandedConstant().

Get the number of words.

Here one word's bitwidth equals to that of uint64_t.

Returns

the number of words to hold the integer value of thisAPInt.

Definition at line1475 of fileAPInt.h.

ReferencesBitWidth, andgetNumWords().

Referenced bybyteSwap(),llvm::detail::IEEEFloat::convertFromAPInt(),llvm::APFloat::convertToInteger(),emitGlobalConstantFP(),extractBits(),getNumWords(),llvm::hash_value(),llvm::detail::IEEEFloat::makeNaN(),operator*(),operator*=(),operator++(),operator+=(),operator--(),operator-=(),printConstant(),Profile(),sext(),trunc(),udiv(),udivrem(),urem(),writeFunctionTypeMetadataRecords(), andzext().

Get the number of words.

NOTE Here one word's bitwidth equals to that of uint64_t.

Returns

the number of words to hold the integer value with a given bit width.

Definition at line1483 of fileAPInt.h.

ReferencesBitWidth.

Return anAPInt with exactly one bit set in the result.

Definition at line239 of fileAPInt.h.

ReferencessetBit().

Referenced byBinomialCoefficient(),llvm::TargetLowering::BuildUDIV(),llvm::CombinerHelper::buildUDivUsingMul(),llvm::slpvectorizer::BoUpSLP::canVectorizeLoads(),combineCMP(),combineShiftAnd1ToBitTest(),llvm::InstCombinerImpl::commonIDivTransforms(),llvm::SelectionDAG::computeKnownBits(),llvm::ARMTargetLowering::computeKnownBitsForTargetNode(),llvm::X86TargetLowering::computeKnownBitsForTargetNode(),computeKnownBitsFromOperator(),computeKnownFPClass(),llvm::SelectionDAG::ComputeNumSignBits(),llvm::SelectionDAG::computeVectorKnownZeroElements(),llvm::TargetLowering::expandBITREVERSE(),llvm::TargetLowering::expandDIVREMByConstant(),llvm::TargetLowering::expandIS_FPCLASS(),extractShiftForRotate(),findDemandedEltsBySingleUser(),llvm::InstCombinerImpl::foldICmpEqIntrinsicWithConstant(),llvm::InstCombinerImpl::foldICmpEquality(),llvm::InstCombinerImpl::foldICmpIntrinsicWithConstant(),llvm::InstCombinerImpl::foldICmpShlConstant(),foldSelectICmpAndBinOp(),llvm::ScalarEvolution::getPowerOfTwo(),getStrideAndModOffsetOfGEP(),llvm::ARMTTIImpl::instCombineIntrinsic(),isKnownNonZeroFromOperator(),llvm::SelectionDAG::isSplatValue(),lowerFTRUNC_FCEIL_FFLOOR_FROUND(),llvm::LegalizerHelper::lowerISFPCLASS(),LowerShift(),lowerVectorFTRUNC_FCEIL_FFLOOR_FROUND(),lowerVectorStrictFTRUNC_FCEIL_FFLOOR_FROUND(),llvm::fuzzerop::makeConstantsWithType(),llvm::ConstantRange::makeMaskNotEqualRange(),matchBinaryOp(),MatchBinaryOp(),matchBinaryShuffle(),performSETCCCombine(),processUMulZExtIdiom(),scalarizeMaskedCompressStore(),scalarizeMaskedExpandLoad(),scalarizeMaskedGather(),scalarizeMaskedLoad(),scalarizeMaskedScatter(),scalarizeMaskedStore(),setLimitsForBinOp(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),simplifyIntrinsic(),llvm::X86TargetLowering::SimplifyMultipleUseDemandedBitsForTargetNode(),simplifyX86immShift(),SolveLinEquationWithOverflow(),llvm::APIntOps::SolveQuadraticEquationWrap(),llvm::InstCombinerImpl::visitICmpInst(),llvm::LegalizerHelper::widenScalar(), andllvm::ConstantRange::zeroExtend().

This function returns a pointer to the internal storage of theAPInt.

This is useful for writing out theAPInt in binary form without any conversions.

Definition at line569 of fileAPInt.h.

Referenced byllvm::DwarfUnit::addConstantValue(),llvm::detail::IEEEFloat::convertFromAPInt(),llvm::detail::IEEEFloat::convertFromZeroExtendedInteger(),emitGlobalConstantFP(),emitGlobalConstantLargeInt(),llvm::getExpressionForConstant(),llvm::HexagonLowerToMC(),insertBits(),llvm::detail::IEEEFloat::makeNaN(),printConstant(),sext(),llvm::ExecutionEngine::StoreValueToMemory(),toString(),trunc(),writeFunctionTypeMetadataRecords(), andzext().

Get sign extended value.

This method attempts to return the value of thisAPInt as a sign extended int64_t. The bit width must be <= 64 or the value must fit within an int64_t. Otherwise an assertion will result.

Definition at line1542 of fileAPInt.h.

Referencesassert(),BitWidth, andllvm::SignExtend64().

Referenced byllvm::DwarfUnit::addConstantValue(),llvm::InterleavedAccessInfo::analyzeInterleaving(),llvm::TargetLowering::BuildSDIV(),checkIfSafeAddSequence(),combineAndOrForCcmpCtest(),combineX86SubCmpForFlags(),emitConstantRange(),llvm::TargetTransformInfoImplCRTPBase< T >::getGEPCost(),llvm::CoroSubFnInst::getIndex(),llvm::AArch64TTIImpl::getIntImmCost(),llvm::X86TTIImpl::getIntImmCost(),llvm::RISCVMatInt::getIntMatCost(),getMinimalBaseOfPointer(),llvm::GetPointerBaseWithConstantOffset(),llvm::getPointersDiff(),llvm::getPtrStride(),getSalvageOpsForGEP(),llvm::ConstantInt::getSExtValue(),getStrideFromPointer(),llvm::remarks::Argument::getValAsInt(),getVShiftImm(),instCombineSVESDIV(),llvm::TargetTransformInfoImplBase::isConstantStridedAccessLessThan(),llvm::RISCVTargetLowering::isDesirableToCommuteWithShift(),llvm::SIInstrInfo::isInlineConstant(),llvm::AArch64TargetLowering::isMulAddWithConstProfitable(),llvm::ARMTargetLowering::isMulAddWithConstProfitable(),isSimpleVIDSequence(),LLVMGenericValueToInt(),llvm::AsmPrinter::lowerConstant(),llvm::CombinerHelper::matchPtrAddImmedChain(),rotateSign(),llvm::RISCVDAGToDAGISel::Select(),llvm::RISCVDAGToDAGISel::selectScalarFPAsInt(),llvm::LoongArchDAGToDAGISel::selectVSplatImm(),selectVSplatImmHelper(),llvm::LoopVectorizationCostModel::setVectorizedCallDecision(),llvm::TargetLowering::SimplifySetCC(),toString(),tryCombineShiftImm(), andtryFoldHelper().

Gets maximum signed value ofAPInt for a specific bit width.

Definition at line209 of fileAPInt.h.

ReferencesclearBit().

Referenced byllvm::calculateUpperBound(),llvm::cannotBeMaxInLoop(),llvm::ConstantRange::castOp(),combineMinMaxReduction(),combineTruncToVnclip(),computeForSatAddSub(),detectSSatPattern(),detectSSatSPattern(),llvm::TargetLowering::expandAddSubSat(),llvm::TargetLowering::expandFixedPointMul(),llvm::TargetLowering::expandFP_TO_INT_SAT(),llvm::TargetLowering::expandIS_FPCLASS(),llvm::TargetLowering::expandRoundInexactToOdd(),llvm::TargetLowering::expandShlSat(),llvm::InstCombinerImpl::foldFCmpIntToFPConst(),llvm::InstCombinerImpl::foldICmpAddConstant(),llvm::InstCombinerImpl::foldICmpAddOpConst(),foldICmpXNegX(),llvm::UnsignedDivisionByConstantInfo::get(),getIdentityValueForAtomicOp(),llvm::ConstantExpr::getIntrinsicIdentity(),llvm::getMinMaxLimit(),llvm::SelectionDAG::getNeutralElement(),getRangeForIntrinsic(),getRangeForSelectPattern(),llvm::MinMaxIntrinsic::getSaturationPoint(),llvm::ConstantRange::getSignedMax(),getSignedOverflowLimitForStep(),isNonZeroAdd(),isSafeIncreasingBound(),LowerADDSAT_SUBSAT(),llvm::LegalizerHelper::lowerAddSubSatToMinMax(),llvm::LegalizerHelper::lowerFAbs(),LowerFABSorFNEG(),lowerFABSorFNEG(),LowerFCOPYSIGN(),lowerFCOPYSIGN(),llvm::LegalizerHelper::lowerFPTOINT_SAT(),llvm::LegalizerHelper::lowerISFPCLASS(),llvm::LegalizerHelper::lowerShlSat(),llvm::fuzzerop::makeConstantsWithType(),makeExactMulNSWRegion(),llvm::ConstantRange::makeGuaranteedNoWrapRegion(),llvm::X86InstrInfo::optimizeCompareInstr(),sadd_sat(),llvm::KnownBits::sdiv(),setLimitsForBinOp(),llvm::ConstantRange::signedAddMayOverflow(),llvm::ConstantRange::signedSubMayOverflow(),llvm::TargetLowering::SimplifySetCC(),simplifyX86pack(),smul_sat(),sshl_sat(),ssub_sat(),truncSSat(),llvm::LegalizerHelper::widenScalar(), andllvm::ScalarEvolution::willNotOverflow().

Gets minimum signed value ofAPInt for a specific bit width.

Definition at line219 of fileAPInt.h.

ReferencessetBit().

Referenced byllvm::ConstantRange::abs(),llvm::cannotBeMinInLoop(),canonicalizeForInvariantConditionInjection(),llvm::ConstantRange::castOp(),combineMinMaxReduction(),combineTruncToVnclip(),computeForSatAddSub(),detectSSatPattern(),detectSSatSPattern(),llvm::TargetLowering::expandAddSubSat(),llvm::TargetLowering::expandFixedPointMul(),llvm::TargetLowering::expandFP_TO_INT_SAT(),llvm::TargetLowering::expandShlSat(),foldAddToAshr(),llvm::InstCombinerImpl::foldFCmpIntToFPConst(),llvm::InstCombinerImpl::foldICmpAddConstant(),llvm::InstCombinerImpl::foldICmpAndConstant(),llvm::InstCombinerImpl::foldICmpCommutative(),foldMinimumOverTrailingOrLeadingZeroCount(),llvm::SignedDivisionByConstantInfo::get(),llvm::UnsignedDivisionByConstantInfo::get(),getIdentityValueForAtomicOp(),llvm::ConstantExpr::getIntrinsicIdentity(),llvm::getMinMaxLimit(),llvm::ScalarEvolution::getMulExpr(),llvm::SelectionDAG::getNeutralElement(),getRangeForIntrinsic(),getRangeForSelectPattern(),llvm::MinMaxIntrinsic::getSaturationPoint(),llvm::RecurrenceDescriptor::getSentinelValue(),llvm::ConstantRange::getSignedMin(),getSignedOverflowLimitForStep(),llvm::RecurrenceDescriptor::isFindLastIVPattern(),isSafeDecreasingBound(),LowerADDSAT_SUBSAT(),llvm::LegalizerHelper::lowerAddSubSatToAddoSubo(),llvm::LegalizerHelper::lowerAddSubSatToMinMax(),llvm::LegalizerHelper::lowerFPTOINT_SAT(),llvm::LegalizerHelper::lowerShlSat(),llvm::ConstantRange::makeAllowedICmpRegion(),llvm::fuzzerop::makeConstantsWithType(),makeExactMulNSWRegion(),llvm::ConstantRange::makeGuaranteedNoWrapRegion(),llvm::ConstantRange::multiplyWithNoWrap(),narrowSDivOrSRem(),llvm::X86InstrInfo::optimizeCompareInstr(),processAbsIntrinsic(),sadd_sat(),llvm::ConstantRange::sdiv(),llvm::RISCVDAGToDAGISel::Select(),setLimitsForBinOp(),llvm::ConstantRange::signedAddMayOverflow(),llvm::ConstantRange::signedSubMayOverflow(),llvm::TargetLowering::SimplifySetCC(),simplifyX86pack(),smul_sat(),sshl_sat(),ssub_sat(),truncSSat(),llvm::InstCombinerImpl::visitCallInst(),llvm::InstCombinerImpl::visitSDiv(),llvm::LegalizerHelper::widenScalar(), andllvm::ScalarEvolution::willNotOverflow().

Get the minimum bit size for this signedAPInt.

Computes the minimum bit width for thisAPInt while considering it to be a signed (and probably negative) value. If the value is not negative, this function returns the same value asgetActiveBits()+1. Otherwise, it returns the smallest bit width that will retain the negative value. For example, -1 can be written as 0b1 or 0xFFFFFFFFFF. 0b1 is shorter and so for -1, this function will always return 1.

Definition at line1511 of fileAPInt.h.

ReferencesBitWidth.

Referenced byllvm::APSInt::APSInt(),canFoldIVIncExpr(),combineShiftRightLogical(),eliminateDeadSwitchCases(),llvm::RISCVTargetLowering::isDesirableToCommuteWithShift(),rebuildExtCst(),llvm::TargetLowering::SimplifySetCC(),llvm::RISCVTargetLowering::targetShrinkDemandedConstant(), andllvm::InstCombinerImpl::visitSDiv().

Get the SignMask for a specific bit width.

This is just a wrapper function ofgetSignedMinValue(), and it helps code readability when we want to get a SignMask.

Definition at line229 of fileAPInt.h.

ReferencesBitWidth.

Referenced bycheckSignTestSetCCCombine(),combineAVG(),combineGatherScatter(),combineMaskedLoad(),combineMaskedStore(),combinePTESTCC(),combineStore(),combineVSelectToBLENDV(),combineX86GatherScatter(),computeShlNSWWithNegLHS(),llvm::decomposeBitTestICmp(),llvm::TargetLowering::expandFP_TO_SINT(),llvm::TargetLowering::expandFP_TO_UINT(),llvm::TargetLowering::expandIS_FPCLASS(),llvm::TargetLowering::expandRoundInexactToOdd(),foldAndToUsubsat(),llvm::InstCombinerImpl::foldICmpSRemConstant(),getDemandedBitsLHSMask(),llvm::LegalizerHelper::lower(),LowerFABSorFNEG(),lowerFABSorFNEG(),llvm::LegalizerHelper::lowerFCopySign(),LowerFCOPYSIGN(),lowerFCOPYSIGN(),llvm::LegalizerHelper::lowerFPTOSI(),llvm::LegalizerHelper::lowerFPTOUI(),llvm::LegalizerHelper::lowerISFPCLASS(),LowerShift(),LowerVSETCC(),llvm::RISCVTargetLowering::PerformDAGCombine(),llvm::GISelKnownBits::signBitIsZero(),llvm::SelectionDAG::SignBitIsZero(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::X86TargetLowering::SimplifyDemandedBitsForTargetNode(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::InstCombinerImpl::visitAShr(),llvm::InstCombinerImpl::visitCallInst(),llvm::InstCombinerImpl::visitShl(), andllvm::InstCombinerImpl::visitSRem().

Return a value containing V broadcasted over NewLen bits.

Definition at line624 of fileAPInt.cpp.

Referencesassert(), andI.

Referenced bycombineAddOfPMADDWD(),combineSubShiftToOrcB(),computeKnownBitsForPMADDUBSW(),computeKnownBitsForPMADDWD(),llvm::TargetLowering::expandBITREVERSE(),llvm::TargetLowering::expandCTPOP(),llvm::TargetLowering::expandVPBITREVERSE(),llvm::TargetLowering::expandVPCTPOP(),extractConstantBits(),getAvailableLoadStore(),llvm::VNCoercion::getConstantMemInstValueForLoad(),getMemsetValue(),getTargetConstantBitsFromNode(),llvm::X86TTIImpl::instCombineIntrinsic(),llvm::SelectionDAG::isSplatValue(),llvm::LegalizerHelper::lowerBitCount(),llvm::LegalizerHelper::lowerBitreverse(),LowerShift(),PerformVMOVNCombine(),PerformVQMOVNCombine(),llvm::InstCombinerImpl::SimplifyAnyMemSet(),llvm::ARMTTIImpl::simplifyDemandedVectorEltsIntrinsic(),llvm::X86TTIImpl::simplifyDemandedVectorEltsIntrinsic(), andtryToRecognizePopCount().

Get the bits that are sufficient to represent the string value.

This may over estimate the amount of bits required, but it does not require parsing the value in the string.

Definition at line517 of fileAPInt.cpp.

Referencesassert().

Referenced bygetBitsNeeded().

Get the '0' value for the specified bit-width.

Definition at line200 of fileAPInt.h.

Referenced byllvm::ConstantRange::abs(),adjustByValArgAlignment(),llvm::SwitchCG::SwitchLowering::buildBitTests(),llvm::TargetLowering::BuildUDIV(),llvm::CombinerHelper::buildUDivUsingMul(),cmpExcludesZero(),combineCONCAT_VECTORS(),combineConcatVectorOps(),combineMOVMSK(),combineOr(),combineShuffleToZeroExtendVectorInReg(),combineVectorCompare(),combineVectorPack(),combineX86ShuffleChain(),combineX86ShufflesConstants(),combineX86ShufflesRecursively(),llvm::ObjectSizeOffsetVisitor::compute(),llvm::SelectionDAG::computeKnownBits(),computeKnownBitsFromOperator(),llvm::SelectionDAG::ComputeNumSignBits(),computeShlNSW(),llvm::SelectionDAG::computeVectorKnownZeroElements(),computeZeroableShuffleElements(),llvm::ConstantFoldCastInstruction(),llvm::ConstantRange::ctlz(),llvm::ConstantRange::ctpop(),llvm::ConstantRange::cttz(),llvm::decomposeBitTestICmp(),detectSSatPattern(),EltsFromConsecutiveLoads(),estimateBitMaskedAndLowerBound(),llvm::TargetLowering::expandFP_TO_UINT(),extractConstantBits(),llvm::SelectionDAG::FoldConstantArithmetic(),foldCtpop(),foldICmpUSubSatOrUAddSatWithConstant(),foldSelectICmpLshrAshr(),foldSwitchToSelect(),FoldValueWithUndef(),llvm::SCEVExpander::generateOverflowCheck(),llvm::BuildVectorSDNode::getConstantRawBits(),getConstVector(),getDomain(),getElementIndex(),getExtractedDemandedElts(),llvm::getHorizDemandedEltsForFirstOperand(),llvm::TargetTransformInfoImplCRTPBase< T >::getInstructionCost(),llvm::BasicTTIImplBase< T >::getInterleavedMemoryOpCost(),llvm::X86TTIImpl::getInterleavedMemoryOpCostAVX512(),llvm::APFixedPoint::getIntPart(),llvm::BasicTTIImplBase< T >::getIntrinsicInstrCost(),getKnownUndefForVectorBinop(),getPackDemandedElts(),getRangeForIntrinsic(),getRangeForSelectPattern(),llvm::getShuffleDemandedElts(),getSizeWithOverflow(),getSplatableConstant(),getTargetConstantBitsFromNode(),getTargetShuffleAndZeroables(),llvm::slpvectorizer::BoUpSLP::getTreeCost(),getUnsignedCountTrailingZerosRange(),llvm::getVScaleRange(),isCompletePermute(),llvm::X86TargetLowering::isGuaranteedNotToBeUndefOrPoisonForTargetNode(),llvm::ShuffleVectorInst::isInsertSubvectorMask(),isKnownNonZeroFromOperator(),llvm::SelectionDAG::isSplatValue(),llvm::X86TargetLowering::isSplatValueForTargetNode(),isTargetShuffleEquivalent(),LowerFMINIMUM_FMAXIMUM(),llvm::LegalizerHelper::lowerFPTOUI(),LowerShift(),lowerShuffleAsElementInsertion(),lowerShuffleAsLanePermuteAndPermute(),llvm::ConstantRange::makeAllowedICmpRegion(),llvm::ConstantRange::makeGuaranteedNoWrapRegion(),llvm::detail::IEEEFloat::makeNaN(),matchBinaryShuffle(),matchScalarReduction(),MatchVectorAllEqualTest(),llvm::ConstantRange::multiply(),llvm::ConstantRange::multiplyWithNoWrap(),rebuildExtCst(),llvm::BuildVectorSDNode::recastRawBits(),resolveZeroablesFromTargetShuffle(),scalarConstantToHexString(),llvm::APIntOps::ScaleBitMask(),llvm::ConstantRange::sdiv(),llvm::ConstantRange::shl(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::TargetLowering::SimplifyMultipleUseDemandedBits(),simplifyX86pack(),llvm::ConstantRange::srem(),stripAndComputeConstantOffsets(),llvm::ConstantRange::urem(), andllvm::reassociate::XorOpnd::XorOpnd().

Return anAPInt zero bits wide.

Definition at line203 of fileAPInt.h.

Get zero extended value.

This method attempts to return the value of thisAPInt as a zero extended uint64_t. The bitwidth must be <= 64 or the value must fit within a uint64_t. Otherwise an assertion will result.

Definition at line1520 of fileAPInt.h.

Referencesassert().

Referenced byllvm::DwarfExpression::addConstantFP(),llvm::DwarfUnit::addConstantValue(),llvm::CombinerHelper::applyFunnelShiftConstantModulo(),llvm::buildSelectInst(),canEvaluateShiftedShift(),canEvaluateZExtd(),collectBitParts(),combineCMov(),combineCMP(),combineExtractWithShuffle(),llvm::PPCInstrInfo::combineRLWINM(),combineTargetShuffle(),CombineVMOVDRRCandidateWithVecOp(),llvm::InstCombinerImpl::commonIDivTransforms(),llvm::ProfileSummaryBuilder::computeDetailedSummary(),computeFlagsForAddressComputation(),llvm::RISCVTargetLowering::computeKnownBitsForTargetNode(),llvm::AMDGPUTargetLowering::computeKnownBitsForTargetNode(),computeKnownBitsFromOperator(),llvm::X86TargetLowering::ComputeNumSignBitsForTargetNode(),ComputeNumSignBitsImpl(),convertIntToDoubleImm(),llvm::TargetLowering::CTTZTableLookup(),DecodeXR32RegisterClass(),llvm::Interpreter::exitCalled(),llvm::extractConstantMask(),extractShiftForRotate(),llvm::InstCombinerImpl::foldICmpShlConstant(),llvm::InstCombinerImpl::foldICmpTruncConstant(),foldLoadsRecursive(),foldSelectICmpAndZeroShl(),llvm::InstCombinerImpl::FoldShiftByConstant(),foldShiftedShift(),foldSubCtlzNot(),foldVecExtTruncToExtElt(),llvm::generateSpecConstantInst(),getArrayComponentCount(),getConstant(),llvm::ExecutionEngine::getConstantValue(),llvm::getConstFromIntrinsic(),llvm::getExpressionForConstant(),llvm::getObjectSize(),llvm::SelectionDAG::getShiftAmountConstant(),llvm::ScalarEvolution::getSmallConstantTripMultiple(),llvm::GStepVector::getStep(),llvm::AArch64TargetMachine::getSubtargetImpl(),getVariantMatchScore(),llvm::ConstantInt::getZExtValue(),llvm::mca::initializeUsedResources(),llvm::GCNTTIImpl::instCombineIntrinsic(),isEXTMask(),llvm::AArch64TargetLowering::isFPImmLegal(),isKnownTypeIdMember(),llvm::AArch64TargetLowering::isMulAddWithConstProfitable(),llvm::ARMTargetLowering::isMulAddWithConstProfitable(),llvm::SystemZVectorConstantInfo::isVectorConstantLegal(),LLVMGenericValueToInt(),LowerShiftByScalarImmediate(),matchAndOrChain(),matchIntPart(),matchPMADDWD(),matchPMADDWD_2(),narrowIndex(),optimizeIncrementingWhile(),optimizeLogicalImm(),parseHexOcta(),parseJumpTable(),PerformANDCombine(),llvm::AMDGPUTargetLowering::PerformDAGCombine(),performDSPShiftCombine(),performMulCombine(),PerformORCombine(),PerformSHLSimplify(),llvm::X86TargetLowering::preferedOpcodeForCmpEqPiecesOfOperand(),printConstant(),llvm::NVPTXFloatMCExpr::printImpl(),llvm::ExecutionEngine::runFunctionAsMain(),llvm::PPCTargetLowering::SelectAddressRegImm(),llvm::PPCTargetLowering::SelectAddressRegImm34(),llvm::LoopVectorizationPlanner::selectEpilogueVectorizationFactor(),selectI64ImmDirect(),selectI64ImmDirectPrefix(),llvm::LoongArchDAGToDAGISel::selectVSplatImm(),llvm::InstCombinerImpl::SimplifyMultipleUseDemandedBits(),llvm::InstCombinerImpl::simplifyShrShlDemandedBits(),simplifyX86extrq(),simplifyX86insertq(),simplifyX86varShift(),splitGlobal(),llvm::SystemZVectorConstantInfo::SystemZVectorConstantInfo(),toString(),toString(),tryBitfieldInsertOpFromOrAndImm(),tryCombineToBSL(),llvm::tryPromoteCall(),urem(),llvm::Interpreter::visitAllocaInst(),llvm::InstCombinerImpl::visitAnd(),llvm::Interpreter::visitAShr(),llvm::InstCombinerImpl::visitAShr(),llvm::Interpreter::visitExtractElementInst(),llvm::Interpreter::visitInsertElementInst(),llvm::Interpreter::visitLShr(),llvm::InstCombinerImpl::visitLShr(),llvm::Interpreter::visitShl(),llvm::InstCombinerImpl::visitShl(),walkToAllocaAndPrependOffsetDeref(), andWriteAPFloatInternal().

Insert the bits from a smallerAPInt starting at bitPosition.

Definition at line370 of fileAPInt.cpp.

ReferencesAPINT_BITS_PER_WORD,APINT_WORD_SIZE,assert(),getBitWidth(),getRawData(),isSingleWord(),setBitVal(),VAL, andWORDTYPE_MAX.

Referenced bycombineConcatVectorOps(),llvm::SelectionDAG::computeKnownBits(),llvm::SelectionDAG::ComputeNumSignBits(),llvm::extractConstantMask(),getDemandedSrcElements(),getSplatableConstant(),getTargetConstantBitsFromNode(),llvm::KnownBits::insertBits(),llvm::BuildVectorSDNode::isConstantSplat(),llvm::RISCVTargetLowering::PerformDAGCombine(),rebuildExtCst(),llvm::BuildVectorSDNode::recastRawBits(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::TargetLowering::SimplifyDemandedVectorElts(), andllvm::TargetLowering::SimplifyMultipleUseDemandedBits().

Definition at line428 of fileAPInt.cpp.

ReferencesisSingleWord().

This operation tests if there are any pairs of corresponding bits between thisAPInt and RHS that are both set.

Definition at line1249 of fileAPInt.h.

Referencesassert(),BitWidth, andRHS.

Referenced bybitTrackingDCE(),combineBlendOfPermutes(),eliminateDeadSwitchCases(),llvm::InstCombinerImpl::foldICmpAndConstant(),foldLogOpOfMaskedICmps_NotAllZeros_BMask_Mixed(),foldSignedTruncationCheck(),llvm::KnownBits::hasConflict(),isKnownNonEqual(),isNonZeroAdd(),simplifyAndInst(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::TargetLowering::SimplifySetCC(), andllvm::KnownBits::srem().

Checks if thisAPInt -interpreted as an address- is aligned to the provided value.

Definition at line169 of fileAPInt.cpp.

ReferencesA,countr_zero(),isZero(), andllvm::Log2().

Determine if all bits are set. This is true for zero-width values.

Definition at line371 of fileAPInt.h.

ReferencesBitWidth.

Referenced byareUsedBitsDense(),bitTrackingDCE(),llvm::TargetLowering::BuildSDIV(),llvm::slpvectorizer::BoUpSLP::canVectorizeLoads(),combineX86ShufflesRecursively(),llvm::InstCombinerImpl::commonIDivTransforms(),createAndInstr(),EltsFromConsecutiveLoads(),EmitVectorComparison(),llvm::extractConstantMask(),findDemandedEltsByAllUsers(),foldAndOrOfSETCC(),foldBinOpIntoSelectIfProfitable(),llvm::InstCombinerImpl::foldICmpAddConstant(),llvm::InstCombinerImpl::foldICmpDivConstant(),llvm::InstCombinerImpl::foldICmpMulConstant(),llvm::InstCombinerImpl::foldICmpShrConstConst(),llvm::X86TTIImpl::getScalarizationOverhead(),getTargetConstantBitsFromNode(),llvm::KnownBits::isAllOnes(),llvm::SelectionDAG::isBoolConstant(),isCompletePermute(),llvm::ISD::isConstantSplatVectorAllOnes(),llvm::TargetLowering::isConstTrueVal(),llvm::ConstantInt::isMinusOne(),isMultiple(),llvm::isSafeToSpeculativelyExecuteWithOpcode(),isSelect01(),isVectorAllOnes(),llvm::KnownBits::isZero(),lowerShuffleAsVTRUNC(),lowerShuffleWithVPMOV(),lowerVECTOR_SHUFFLE(),llvm::SDPatternMatch::m_True(),matchMinMax(),matchShuffleAsEXTRQ(),matchShuffleAsVTRUNC(),PerformReduceShuffleCombine(),llvm::recognizeBSwapOrBitReverseIdiom(),llvm::ConstantRange::sdiv(),llvm::KnownBits::sdiv(),llvm::TargetLowering::SimplifyDemandedBits(),llvm::InstCombinerImpl::SimplifyDemandedUseBits(),llvm::TargetLowering::SimplifyDemandedVectorElts(),llvm::InstCombinerImpl::SimplifyDemandedVectorElts(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(),llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetShuffle(),llvm::RegisterBankInfo::ValueMapping::verify(),llvm::InstCombinerImpl::visitExtractElementInst(),llvm::InstCombinerImpl::visitGetElementPtrInst(),llvm::InstCombinerImpl::visitMul(), andllvm::InstCombinerImpl::visitOr().

Check if thisAPInt has an N-bits unsigned integer value.

Definition at line432 of fileAPInt.h.

ReferencesN.

Referenced byAreMulWideOperandsDemotable(),combineVectorPack(),llvm::ScalarEvolution::getUDivExactExpr(),mustBeFiniteCountedLoop(),parseHexOcta(),llvm::LoongArchDAGToDAGISel::selectVSplatImm(), andtruncUSat().

Returns

true if thisAPInt is a non-empty sequence of ones starting at the least significant bit with the remainder zero. Ex. isMask(0x0000FFFFU) == true.

Definition at line501 of fileAPInt.h.

ReferencesBitWidth, andllvm::isMask_64().

Returns

true if thisAPInt value is a sequence of

Parameters

numBits

ones starting at the least significant bit with the remainder zero.

Definition at line488 of fileAPInt.h.

Referencesassert(), andBitWidth.

Referenced bycombineAndMaskToShift(),combineSetCCMOVMSK(),combineShiftRightLogical(),combineTruncToVnclip(),combineVectorMulToSraBitcast(),detectUSatPattern(),llvm::InstCombinerImpl::foldAddWithConstant(),llvm::InstCombinerImpl::foldICmpAndConstant(),foldSelectICmpAndZeroShl(),foldSubCtlzNot(),llvm::CombinerHelper::matchCombineLoadWithAndMask(),performMulVectorCmpZeroCombine(),performSubsToAndsCombine(),simplifyAMDGCNMemoryIntrinsicDemanded(),simplifyOrInst(), andllvm::InstCombinerImpl::visitSub().

Determine if this is the largest signed value.

This checks to see if the value of thisAPInt is the maximum signed value for theAPInt's bit width.

Definition at line405 of fileAPInt.h.

Referencesassert(), andBitWidth.

Referenced byllvm::InstCombinerImpl::foldICmpXorConstant(),incDecVectorConstant(),llvm::ConstantInt::isMaxValue(),LowerVSETCC(),matchMinMax(),llvm::TargetLowering::SimplifySetCC(), andsimplifySubInst().

Determine if this is the largest unsigned value.

This checks to see if the value of thisAPInt is the maximum unsigned value for theAPInt's bit width.

Definition at line399 of fileAPInt.h.

Referenced byllvm::ConstantRange::ConstantRange(),incDecVectorConstant(),llvm::ConstantRange::isFullSet(), andllvm::ConstantInt::isMaxValue().

Determine if this is the smallest signed value.

This checks to see if the value of thisAPInt is the minimum signed value for theAPInt's bit width.

Definition at line423 of fileAPInt.h.

Referencesassert(), andBitWidth.

Referenced byllvm::KnownBits::abs(),cannotBeIntMin(),combineSetCC(),llvm::InstCombinerImpl::commonIRemTransforms(),llvm::ConstantFoldBinaryInstruction(),llvm::InstCombinerImpl::foldAddWithConstant(),llvm::InstCombinerImpl::foldICmpXorShiftConst(),llvm::InstCombinerImpl::FoldShiftByConstant(),llvm::ConstantRange::getEquivalentICmp(),llvm::ScalarEvolution::getMinusSCEV(),llvm::ScalarEvolution::getUDivExpr(),incDecVectorConstant(),llvm::ConstantInt::isMinValue(),isMultiple(),llvm::isSafeToSpeculativelyExecuteWithOpcode(),llvm::ConstantRange::isSignWrappedSet(),LowerVSETCC(),matchMinMax(),llvm::ConstantRange::multiply(),llvm::APFixedPoint::negate(),llvm::detail::SlowDynamicAPInt::operator-(),llvm::ConstantRange::sdiv(),llvm::KnownBits::sdiv(),sdiv_ov(),llvm::ConstantRange::signExtend(),llvm::TargetLowering::SimplifySetCC(),smul_ov(),tryFactorization(), andllvm::InstCombinerImpl::visitSDiv().