Noah Goldstein 85378b7663 [KnownBits] Factor out and improve the lowbit computation for {u,s}div ...

There are some new cases if the division is `exact`:
    1: If `TZ(LHS) == TZ(RHS)` then the result is always Odd
    2: If `TZ(LHS) > TZ(RHS)` then the `TZ(LHS)-TZ(RHS)` bits of the
       result are zero.
Proofs: https://alive2.llvm.org/ce/z/3rAZqF

As well, return zero in known poison cases to be consistent rather
than just working about the bits we are changing.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D150923

2023-06-06 15:14:10 -05:00

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BLAKE3

[Support/BLAKE3] Rename blake3_* -> llvm_blake3_* to avoid symbol collisions

2023-02-14 16:21:42 -08:00

Unix

[Demangle] remove unused status param of itaniumDemangle

2023-05-03 11:51:35 -07:00

Windows

[Support] Silence warning with Clang ToT.

2023-02-20 18:25:20 -05:00

ABIBreak.cpp

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Allocator.cpp

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AMDGPUMetadata.cpp

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APFixedPoint.cpp

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APFloat.cpp

ValueTracking: Implement computeKnownFPClass for fpext

2023-04-21 07:02:55 -04:00

APInt.cpp

[APInt] Support zero-width extract in extractBitsAsZExtValue()

2023-05-31 17:13:48 +02:00

APSInt.cpp

Use APInt::getSignificantBits instead of APInt::getMinSignedBits (NFC)

2023-02-19 23:56:52 -08:00

ARMAttributeParser.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

ARMBuildAttrs.cpp

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ARMWinEH.cpp

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Atomic.cpp

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AutoConvert.cpp

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BalancedPartitioning.cpp

[InstrProf] Fix warning about converting double to float

2023-06-06 12:36:49 -07:00

Base64.cpp

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BinaryStreamError.cpp

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BinaryStreamReader.cpp

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BinaryStreamRef.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

BinaryStreamWriter.cpp

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BlockFrequency.cpp

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BranchProbability.cpp

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BuryPointer.cpp

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CachePruning.cpp

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Caching.cpp

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Chrono.cpp

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circular_raw_ostream.cpp

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CMakeLists.txt

[InstrProf] Use BalancedPartitioning to order temporal profiling trace data

2023-06-06 11:59:57 -07:00

CodeGenCoverage.cpp

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COM.cpp

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CommandLine.cpp

Use *{Map,Set}::contains (NFC)

2023-03-15 08:46:32 -07:00

Compression.cpp

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ConvertEBCDIC.cpp

[SystemZ][z/OS] Create utility functions for converting between EBCDIC and UTF-8.

2023-04-25 16:03:34 -04:00

ConvertUTF.cpp

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ConvertUTFWrapper.cpp

Use llvm::byteswap instead of ByteSwap_{16,32,64} (NFC)

2023-01-28 15:22:37 -08:00

COPYRIGHT.regex

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CrashRecoveryContext.cpp

[Support] Clarify CrashRecoveryContext exception codes on Windows. NFC

2023-02-08 18:03:58 -05:00

CRC.cpp

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CSKYAttributeParser.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

CSKYAttributes.cpp

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DAGDeltaAlgorithm.cpp

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DataExtractor.cpp

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Debug.cpp

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DebugCounter.cpp

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DebugOptions.h

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DeltaAlgorithm.cpp

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DivisionByConstantInfo.cpp

Use APInt::count{l,r}_{zero,one} (NFC)

2023-02-19 22:04:47 -08:00

DJB.cpp

[Support] llvm::Optional => std::optional

2022-12-16 08:49:10 +00:00

DynamicLibrary.cpp

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ELFAttributeParser.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

ELFAttributes.cpp

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Errno.cpp

Remove HAVE_STRERROR

2023-05-30 14:12:20 -07:00

Error.cpp

[Support] Forward GenCrashDiag argument from report_fatal_error(Error, bool)

2023-05-17 11:16:15 +01:00

ErrorHandling.cpp

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ExtensibleRTTI.cpp

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FileCollector.cpp

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FileOutputBuffer.cpp

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FileUtilities.cpp

[documentation] Fix Typos

2023-03-27 10:20:08 +01:00

FloatingPointMode.cpp

ADT: Move some FPClassTest utility functions out of instcombine

2023-03-03 18:20:47 -04:00

FoldingSet.cpp

[llvm] Use llvm::bit_floor instead of llvm::PowerOf2Floor (NFC)

2023-01-28 09:06:31 -08:00

FormattedStream.cpp

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FormatVariadic.cpp

[Support] llvm::Optional => std::optional

2022-12-16 08:49:10 +00:00

GlobPattern.cpp

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GraphWriter.cpp

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Hashing.cpp

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InitLLVM.cpp

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InstructionCost.cpp

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IntEqClasses.cpp

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IntervalMap.cpp

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JSON.cpp

llvm/lib: Use <cerrno> explicitly since D146395 has hidden errno

2023-05-11 23:31:56 +09:00

KnownBits.cpp

[KnownBits] Factor out and improve the lowbit computation for {u,s}div

2023-06-06 15:14:10 -05:00

LEB128.cpp

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LineIterator.cpp

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Locale.cpp

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LockFileManager.cpp

[Support] llvm::Optional => std::optional

2022-12-16 08:49:10 +00:00

ManagedStatic.cpp

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MathExtras.cpp

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MD5.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

MemAlloc.cpp

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Memory.cpp

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MemoryBuffer.cpp

[Support][MemBuffer] Prevent UB on empty StringRefs

2023-03-14 12:58:37 +01:00

MemoryBufferRef.cpp

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MSP430AttributeParser.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

MSP430Attributes.cpp

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NativeFormatting.cpp

[llvm] Do not zero out write_unsigned_impl internal buffer

2023-01-26 07:59:33 +01:00

OptimizedStructLayout.cpp

Include <optional> instead of "llvm/ADT/Optional.h"

2022-12-18 00:28:54 -08:00

Optional.cpp

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Parallel.cpp

[Support] Add PerThreadBumpPtrAllocator class.

2023-05-06 14:35:26 +02:00

Path.cpp

llvm/lib: Use <cerrno> explicitly since D146395 has hidden errno

2023-05-11 23:31:56 +09:00

PGOOptions.cpp

[NFC][Profile] Access profile through VirtualFileSystem

2023-02-01 09:25:02 -08:00

PluginLoader.cpp

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PrettyStackTrace.cpp

Remove uses of ATOMIC_VAR_INIT

2023-02-24 13:43:12 -08:00

Process.cpp

std::optional::value => operator*/operator->

2022-12-16 22:44:08 +00:00

Program.cpp

Support: Make Wait's SecondsToWait be std::optional [NFC]

2022-12-14 09:56:10 -05:00

RandomNumberGenerator.cpp

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raw_os_ostream.cpp

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raw_ostream.cpp

[Support] Improve Windows performance of buffered raw_ostream

2023-04-05 11:03:12 +01:00

regcomp.c

[Support] Fix incorrect assertion in backref compilation

2023-01-16 16:56:33 +01:00

regengine.inc

[Regex] Avoid NFA machinery for fixed prefix chars (NFC)

2023-01-19 11:12:53 +01:00

regerror.c

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regex2.h

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regex_impl.h

Use LLVM-style include guard in regex_impl.h

2023-05-08 18:56:09 +02:00

Regex.cpp

Undo include order work-around in Regex.cpp

2023-05-09 09:18:10 +02:00

regexec.c

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regfree.c

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regstrlcpy.c

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regutils.h

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RISCVAttributeParser.cpp

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

2023-01-05 14:11:08 +01:00

RISCVAttributes.cpp

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RISCVISAInfo.cpp

[RISCV] check pointer before dereference

2023-05-31 21:35:07 -07:00

RWMutex.cpp

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ScaledNumber.cpp

Use llvm::count{lr}_{zero,one} (NFC)

2023-01-28 12:41:20 -08:00

ScopedPrinter.cpp

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SHA1.cpp

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SHA256.cpp

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Signals.cpp

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Signposts.cpp

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SmallPtrSet.cpp

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SmallVector.cpp

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SourceMgr.cpp

[TableGen][SourceMgr] Fix obvious mistake in D141220

2023-01-09 11:16:56 +01:00

SpecialCaseList.cpp

[llvm] Use *{Set,Map}::contains (NFC)

2023-03-14 18:56:07 -07:00

Statistic.cpp

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StringExtras.cpp

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StringMap.cpp

Recommit "[Support] change StringMap hash function from djbHash to xxHash"

2023-02-19 16:52:26 -05:00

StringRef.cpp

Add StringRef::consumeInteger(APInt)

2023-05-23 14:01:38 +01:00

StringSaver.cpp

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SuffixTree.cpp

Revert "[SuffixTree] Add suffix tree statistics"

2023-05-12 17:09:26 -07:00

SuffixTreeNode.cpp

[NFC] SuffixTree: Split out SuffixTreeNodes into their own files

2023-05-11 21:33:39 -07:00

SystemUtils.cpp

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TarWriter.cpp

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Threading.cpp

Include <optional> instead of "llvm/ADT/Optional.h"

2022-12-18 00:28:54 -08:00

ThreadPool.cpp

Name threadpool threads.

2023-02-23 18:11:15 +00:00

TimeProfiler.cpp

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Timer.cpp

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ToolOutputFile.cpp

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TrigramIndex.cpp

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Twine.cpp

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TypeSize.cpp

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Unicode.cpp

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UnicodeCaseFold.cpp

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UnicodeNameToCodepoint.cpp

Fix some -Wconstant-conversion warnings for future Clang (D139114)

2023-01-13 16:28:44 -08:00

UnicodeNameToCodepointGenerated.cpp

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Valgrind.cpp

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VersionTuple.cpp

[Support] llvm::Optional => std::optional

2022-12-16 08:49:10 +00:00

VirtualFileSystem.cpp

[llvm][vfs] Avoid silent fallback to process-wide working directory

2023-05-02 09:39:07 -07:00

Watchdog.cpp

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WithColor.cpp

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xxhash.cpp

[xxHash] Don't trigger UB on empty StringRef

2023-02-08 12:53:54 +01:00

YAMLParser.cpp

[YAML] Trim trailing whitespace from plain scalars

2023-02-09 21:56:57 -05:00

YAMLTraits.cpp

Recommit [YAML IO] Check that mapping doesn't contain duplicating keys

2023-02-13 17:45:07 +03:00

Z3Solver.cpp

[analyzer] Fix crash exposed by D140059

2023-01-26 12:55:42 -06:00