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3ffae1923a53a2532f7564a0be44e41193e7bed2
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Pavel Labath 3ffae1923a [Support] Improve readNativeFile(Slice) interface 
Summary:
There was a subtle, but pretty important difference between the Slice
and regular versions of this function. The Slice function was
zero-initializing the rest of the buffer when the read syscall returned
less bytes than expected, while the regular function did not.

This patch removes the inconsistency by making both functions *not*
zero-initialize the buffer. The zeroing code is moved to the
MemoryBuffer class, which is currently the only user of this code. This
makes the API more consistent, and the code shorter.

While in there, I also refactor the functions to return the number of
bytes through the regular return value (via Expected<size_t>) instead of
a separate by-ref argument.

Reviewers: aganea, rnk

Subscribers: kristina, Bigcheese, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66471

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369627 91177308-0d34-0410-b5e6-96231b3b80d8
2019-08-22 08:13:30 +00:00
..
Unix
[Support] Improve readNativeFile(Slice) interface
2019-08-22 08:13:30 +00:00
Windows
[Support] Improve readNativeFile(Slice) interface
2019-08-22 08:13:30 +00:00
AArch64TargetParser.cpp
[AArch64][SVE2] Rename bitperm feature to sve2-bitperm
2019-07-26 15:57:50 +00:00
Allocator.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
AMDGPUMetadata.cpp
[AMDGPU] Added a new metadata for multi grid sync implicit argument
2019-07-05 16:05:17 +00:00
APFloat.cpp
[clang] Add storage for APValue in ConstantExpr
2019-06-15 10:24:47 +00:00
APInt.cpp
[C++2a] Add __builtin_bit_cast, used to implement std::bit_cast
2019-07-02 18:28:13 +00:00
APSInt.cpp
Fix parameter name comments using clang-tidy. NFC.
2019-07-16 04:46:31 +00:00
ARMAttributeParser.cpp
Fix failing test on ARM buildbot
2019-06-14 13:45:21 +00:00
ARMBuildAttrs.cpp
[ARM] add target arch definitions for 8.1-M and MVE
2019-05-30 12:57:04 +00:00
ARMTargetParser.cpp
[TargetParser][ARM] Account dependencies when processing target features
2019-07-14 20:31:15 +00:00
ARMWinEH.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Atomic.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
BinaryStreamError.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
BinaryStreamReader.cpp
[Support] Add LEB128 support to BinaryStreamReader/Writer.
2019-04-17 15:38:27 +00:00
BinaryStreamRef.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
BinaryStreamWriter.cpp
[Support] Add LEB128 support to BinaryStreamReader/Writer.
2019-04-17 15:38:27 +00:00
BlockFrequency.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
BranchProbability.cpp
[BranchProbability] Delete a redundant overflow check
2019-06-15 10:09:59 +00:00
BuryPointer.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
CachePruning.cpp
Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC
2019-08-05 05:43:48 +00:00
Chrono.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
circular_raw_ostream.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
CMakeLists.txt
[Support] Re-introduce the RWMutexImpl for macOS < 10.12
2019-08-15 23:07:20 +00:00
CodeGenCoverage.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
COM.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
CommandLine.cpp
Revert Recommit "[CommandLine] Remove OptionCategory and SubCommand caches from the Option class."
2019-07-11 08:54:28 +00:00
Compression.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ConvertUTF.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ConvertUTFWrapper.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
COPYRIGHT.regex
Add regular expression matching support, based on OpenBSD regexec()/regcomp()
2009-08-30 08:24:09 +00:00
CrashRecoveryContext.cpp
[Support] Replace sys::Mutex with their standard equivalents.
2019-08-19 19:49:57 +00:00
CRC.cpp
Attempt to recommit r357901
2019-04-08 12:31:12 +00:00
DAGDeltaAlgorithm.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
DataExtractor.cpp
Remove support for 32-bit offsets in utility classes (5/5)
2019-08-07 11:44:47 +00:00
Debug.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
DebugCounter.cpp
Print out DebugCounter info with -print-debug-counter
2018-10-23 21:51:56 +00:00
DeltaAlgorithm.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
DJB.cpp
[DJB] Fix variable case after D61178
2019-04-27 15:33:22 +00:00
DynamicLibrary.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Errno.cpp
Remove some autoconf references from docs and comments
2019-07-03 09:57:59 +00:00
Error.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
ErrorHandling.cpp
[Support] Move the static initializer install_out_memory_new_handler to InitLLVM
2019-07-12 16:23:25 +00:00
FileCheck.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
FileCollector.cpp
Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC
2019-08-05 05:43:48 +00:00
FileOutputBuffer.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
FileUtilities.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
FoldingSet.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
FormattedStream.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
FormatVariadic.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
GlobPattern.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
GraphWriter.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Hashing.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Host.cpp
[X86] Support -march=tigerlake
2019-08-12 01:29:46 +00:00
InitLLVM.cpp
[Support] Move the static initializer install_out_memory_new_handler to InitLLVM
2019-07-12 16:23:25 +00:00
IntEqClasses.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
IntervalMap.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ItaniumManglingCanonicalizer.cpp
Update more file headers across all of the LLVM projects in the monorepo
2019-01-19 10:56:40 +00:00
JamCRC.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
JSON.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
KnownBits.cpp
[KnownBits] Add computeForAddCarry()
2019-04-12 18:18:08 +00:00
LEB128.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
LineIterator.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
LLVMBuild.txt
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Locale.cpp
[Windows] Convert from UTF-8 to UTF-16 when writing to a Windows console
2018-09-05 00:08:56 +00:00
LockFileManager.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
LowLevelType.cpp
Fix parameter name comments using clang-tidy. NFC.
2019-07-16 04:46:31 +00:00
ManagedStatic.cpp
[Support] Replace sys::Mutex with their standard equivalents.
2019-08-19 19:49:57 +00:00
MathExtras.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
MD5.cpp
Remove \brief commands from doxygen comments.
2018-05-01 15:54:18 +00:00
Memory.cpp
[Support] Renamed member 'Size' to 'AllocatedSize' in MemoryBlock and OwningMemoryBlock.
2019-05-20 20:53:05 +00:00
MemoryBuffer.cpp
[Support] Improve readNativeFile(Slice) interface
2019-08-22 08:13:30 +00:00
NativeFormatting.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Optional.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Options.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Parallel.cpp
Parallel: only allow the first TaskGroup to run tasks parallelly
2019-04-25 11:33:30 +00:00
Path.cpp
[Path] Fix bug in make_absolute logic
2019-08-06 15:46:45 +00:00
PluginLoader.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
PrettyStackTrace.cpp
Make GCC happy about attribute location
2019-07-25 16:58:15 +00:00
Process.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Program.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
RandomNumberGenerator.cpp
[CommandLine] Provide parser<unsigned long> instantiation to allow cl::opt<uint64_t> on LP64 platforms
2019-04-24 02:40:20 +00:00
raw_os_ostream.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
raw_ostream.cpp
Revert "raw_ostream: add operator<< overload for std::error_code"
2019-08-14 13:59:04 +00:00
regcomp.c
Revert r369549 as it broke the bots.
2019-08-21 20:00:41 +00:00
regengine.inc
[ADT] Replace std::isprint by llvm::isPrint.
2018-07-26 15:31:41 +00:00
regerror.c
More MSVC warning fixes:
2009-09-06 12:26:28 +00:00
regex2.h
Support/reg*.h: Make headers include their dependencies
2017-10-26 20:23:11 +00:00
regex_impl.h
Remove trailing space
2018-07-30 19:41:25 +00:00
Regex.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
regexec.c
Fix integer undefined behavior due to signed left shift overflow in LLVM.
2012-08-24 23:29:28 +00:00
regfree.c
Add regular expression matching support, based on OpenBSD regexec()/regcomp()
2009-08-30 08:24:09 +00:00
regstrlcpy.c
Add regular expression matching support, based on OpenBSD regexec()/regcomp()
2009-08-30 08:24:09 +00:00
regutils.h
adding re-include guards into lib/Support/reg*.h
2014-06-12 16:07:56 +00:00
RWMutex.cpp
[RWMutex] Simplify availability check
2019-08-16 21:25:40 +00:00
ScaledNumber.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ScopedPrinter.cpp
Remove redundant includes from lib/Support.
2017-12-13 21:30:58 +00:00
SHA1.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Signals.cpp
Only use argv[0] as the main executable name if it exists.
2019-04-15 22:07:56 +00:00
Signposts.cpp
[Support] Fix Wundef warning
2019-08-15 10:05:22 +00:00
SmallPtrSet.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
SmallVector.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
SourceMgr.cpp
Simplify std::lower_bound with llvm::{bsearch,lower_bound}. NFC
2019-06-21 05:40:31 +00:00
SpecialCaseList.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
Statistic.cpp
Use llvm::stable_sort
2019-04-23 14:51:27 +00:00
StringExtras.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
StringMap.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
StringPool.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
StringRef.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
StringSaver.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
SymbolRemappingReader.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
SystemUtils.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
TargetParser.cpp
[AMDGPU] gfx908 target
2019-07-09 18:10:06 +00:00
TargetRegistry.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
TarWriter.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Threading.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ThreadLocal.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
ThreadPool.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
TimeProfiler.cpp
[Support][Time profiler] Make FE codegen blocks to be inside frontend blocks
2019-08-19 22:58:26 +00:00
Timer.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
ToolOutputFile.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
TrigramIndex.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Triple.cpp
[triple] Use 'macabi' environment name for the Mac Catalyst triples
2019-07-03 01:02:43 +00:00
Twine.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
Unicode.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
UnicodeCaseFold.cpp
Resubmit r325107 (case folding DJB hash)
2018-02-21 22:36:31 +00:00
Valgrind.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
VersionTuple.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
VirtualFileSystem.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
Watchdog.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
WithColor.cpp
Revert r367649: Improve raw_ostream so that you can "write" colors using operator<<
2019-08-02 07:22:34 +00:00
xxhash.cpp
Make ICF log output order deterministic.
2018-07-31 18:04:58 +00:00
YAMLParser.cpp
Update the file headers across all of the LLVM projects in the monorepo
2019-01-19 08:50:56 +00:00
YAMLTraits.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00
Z3Solver.cpp
[llvm] Migrate llvm::make_unique to std::make_unique
2019-08-15 15:54:37 +00:00