Hubert Tong f84abb4f62 MathExtras.h: add LLVM_CONSTEXPR where simple ...

Summary:
This change adds `LLVM_CONSTEXPR` to functions selected as follows:
- the body is already valid under C++11 for a `constexpr` function,
- the evaluation of the function, given constant arguments, will not
  fail during the evaluation of a constant expression, and
- the above properties are easily verifiable at a glance.

Note: the evaluation of the function cannot fail if the instantiation
triggers a static assertion failure.

Reviewers: faisalv, rsmith, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D22824


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277269 91177308-0d34-0410-b5e6-96231b3b80d8

2016-07-30 13:38:51 +00:00

..

ELFRelocs

BPF: Use official ELF e_machine value

2016-07-15 22:27:55 +00:00

AArch64TargetParser.def

Add unittests to {ARM | AArch64}TargetParser.

2016-07-28 06:11:18 +00:00

AlignOf.h

Fix Clang-tidy modernize-use-nullptr and modernize-use-override warnings; other minor fixes.

2016-01-26 18:48:36 +00:00

Allocator.h

[pdb] Add unit tests for PDB MappedBlockStream and zero copy

2016-05-31 22:41:52 +00:00

ARMBuildAttributes.h

[ARM] Add DSP build attribute and extension targeting

2016-01-25 11:26:11 +00:00

ARMEHABI.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ARMTargetParser.def

Reformat for some clarity and 80-columns. NFC.

2016-06-07 20:27:06 +00:00

ARMWinEH.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ArrayRecycler.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Atomic.h

Remove all of the legacy home-grown atomic operations LLVM provided

2016-06-02 17:11:11 +00:00

AtomicOrdering.h

Fix some Clang-tidy modernize-deprecated-headers and Include What You Use warnings; other minor fixes.

2016-05-09 23:11:38 +00:00

BlockFrequency.h

Add - and -= operators to BlockFrequency using saturating arithmetic.

2015-10-12 18:34:00 +00:00

BranchProbability.h

Minor code cleanups. NFC.

2016-02-15 04:30:37 +00:00

CachePruning.h

Add Cache Pruning support

2016-04-02 03:28:26 +00:00

Capacity.h

Add missing includes/class declaration.

2011-11-04 18:30:30 +00:00

Casting.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

CBindingWrapping.h

Reorganize the C API headers to improve build times.

2015-12-18 01:46:52 +00:00

circular_raw_ostream.h

Reformat headers in ADT and Support partially.

2015-08-10 04:22:36 +00:00

CodeGen.h

[Codegen] Change PICLevel.

2016-06-17 18:07:14 +00:00

CodeGenCWrappers.h

Make this header include the header it depends on, rather than trying to include itself. Found by C++ modules build.

2016-04-15 23:30:57 +00:00

COFF.h

Rename IMAGE_DEBUG_TYPE_NO_TIMESTAMP to IMAGE_DEBUG_TYPE_REPRO

2016-06-02 17:32:11 +00:00

COM.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

CommandLine.h

Add a default parameter for getRegisteredOptions.

2016-07-06 17:25:16 +00:00

Compiler.h

Add an LLVM_BUILTIN_DEBUGTRAP macro.

2016-03-10 05:15:03 +00:00

Compression.h

Purge unused includes throughout libSupport.

2015-03-23 18:07:13 +00:00

ConvertUTF.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

CrashRecoveryContext.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

DataExtractor.h

Purge unused includes throughout libSupport.

2015-03-23 18:07:13 +00:00

DataStream.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

DataTypes.h.cmake

Do not require __STDC_LIMIT_MACROS and others

2016-06-22 21:15:51 +00:00

Debug.h

docs: Stop using DEBUG() without DEBUG_TYPE in the ProgrammersManual

2015-10-15 18:17:44 +00:00

DOTGraphTraits.h

Make the SelectionDAG graph printer use SDNode::PersistentId labels.

2015-10-27 23:09:03 +00:00

Dwarf.def

[DebugInfo] Add calling convention support for DWARF and CodeView

2016-06-08 20:34:29 +00:00

Dwarf.h

Synchronize LLVM and clang's ObjCDeclSpec::ObjCPropertyAttributeKind.

2016-07-14 00:41:18 +00:00

DynamicLibrary.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ELF.h

BPF: Use official ELF e_machine value

2016-07-15 22:27:55 +00:00

Endian.h

[readobj] Expand CodeView dumping functionality

2016-01-13 19:32:35 +00:00

EndianStream.h

Typo fix and simplification.

2016-01-22 19:58:18 +00:00

Errc.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Errno.h

Fix include guards so they exactly match file names.

2013-01-10 00:45:19 +00:00

Error.h

[Support] Make ErrorAsOutParameter take an Error* rather than an Error&.

2016-07-22 16:11:25 +00:00

ErrorHandling.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

ErrorOr.h

Use std::forward to make ErrorOr<T> constructible from a value that has a user-defined conversion to T. No functionality change intended.

2016-02-09 04:47:58 +00:00

FileOutputBuffer.h

Return ErrorOr from FileOutputBuffer::create. NFC.

2015-08-13 00:31:39 +00:00

FileSystem.h

In openFileForRead, attempt to fetch the actual name of the file on disk -- including case -- so that clang can later warn about non-portable #include and #import directives.

2016-06-13 15:54:56 +00:00

FileUtilities.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Format.h

[Support] Fix the examples and assertion for format_hex_no_prefix to take into account that there are no prefix characters to include in Width.

2016-02-08 01:02:55 +00:00

FormattedStream.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

GCOV.h

Rename one of our two llvm::GCOVOptions classes to llvm::GCOV::Options. We used

2015-10-14 00:04:19 +00:00

GenericDomTree.h

Apply clang-tidy's modernize-loop-convert to most of lib/Transforms.

2016-06-26 12:28:59 +00:00

GenericDomTreeConstruction.h

Reformat headers in ADT and Support partially.

2015-08-10 04:22:36 +00:00

GraphWriter.h

Make the SelectionDAG graph printer use SDNode::PersistentId labels.

2015-10-27 23:09:03 +00:00

Host.h

Add AIX support to Path.inc, Host.h, and CMake.

2016-07-19 22:46:39 +00:00

JamCRC.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

LEB128.h

Fixup for r217830. Don't do left shifts on negative values

2014-09-17 18:23:07 +00:00

LICENSE.TXT

Merge System into Support.

2010-11-29 18:16:10 +00:00

LineIterator.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Locale.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

LockFileManager.h

[LockFileManager] Improve error output by using better error messages

2016-06-04 00:34:00 +00:00

MachO.def

Reapply r269782 "[obj2yaml] [yaml2obj] Support for MachO load command structures""

2016-05-17 19:44:06 +00:00

MachO.h

[Support] Add storage specifier for MachO::NListType.

2016-07-29 23:17:53 +00:00

ManagedStatic.h

[ManagedStatic] Reimplement double-checked locking with std::atomic.

2016-06-29 15:04:07 +00:00

MathExtras.h

MathExtras.h: add LLVM_CONSTEXPR where simple

2016-07-30 13:38:51 +00:00

MD5.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

Memory.h

Add a sys::OwningMemoryBlock class, which is a sys::MemoryBlock that owns its

2015-10-31 00:55:32 +00:00

MemoryBuffer.h

Reorganize the C API headers to improve build times.

2015-12-18 01:46:52 +00:00

MemoryObject.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MipsABIFlags.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Mutex.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

MutexGuard.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

OnDiskHashTable.h

Fix missing member initializers

2016-07-06 23:30:54 +00:00

Options.h

Fix some comment typos.

2015-08-08 18:27:36 +00:00

Path.h

[ThinLTO] Option to control path of distributed backend files

2016-05-17 14:45:30 +00:00

PluginLoader.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

PointerLikeTypeTraits.h

Use the same tag type across all PointerLikeTypeTraits specializations

2016-06-20 23:50:21 +00:00

PrettyStackTrace.h

Don't use recursion to print out the PrettyStackTrace after a crash. If the

2016-05-26 20:21:55 +00:00

Printable.h

Apply another batch of fixes from clang-tidy's performance-unnecessary-value-param.

2016-06-17 20:41:14 +00:00

Process.h

[Support] Creation of minidump after compiler crash on Windows

2016-05-04 16:56:51 +00:00

Program.h

[Support] Fix a doxygen comment (NFC)

2016-07-15 22:44:52 +00:00

RandomNumberGenerator.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

raw_os_ostream.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

raw_ostream.h

Drop an unnecessary use of writev.

2015-12-16 22:59:06 +00:00

raw_sha1_ostream.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

Recycler.h

Support: Stop using iplist in Recycler

2015-10-07 20:49:09 +00:00

RecyclingAllocator.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Regex.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Registry.h

Revert r276973 "Adjust Registry interface to not require plugins to export a registry"

2016-07-28 17:17:22 +00:00

RWMutex.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SaveAndRestore.h

SaveAndRestore: fix coding style and Doxygenify comments

2014-04-10 09:44:32 +00:00

ScaledNumber.h

Fix Clang-tidy readability-redundant-control-flow warnings; other minor fixes.

2016-02-02 18:20:45 +00:00

ScopedPrinter.h

Apply most suggestions of clang-tidy's performance-unnecessary-value-param

2016-06-08 19:09:22 +00:00

SHA1.h

[Support] Fix Wcast-qual warning

2016-04-21 22:40:59 +00:00

Signals.h

Search for llvm-symbolizer binary in the same directory as argv[0], before

2016-06-09 00:53:21 +00:00

SMLoc.h

Whitespace.

2015-08-10 04:22:09 +00:00

Solaris.h

Define BYTE_ORDER on Solaris.

2013-05-21 20:36:13 +00:00

SourceMgr.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SpecialCaseList.h

Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition.

2015-02-15 22:54:22 +00:00

StreamingMemoryObject.h

Support: Implement StreamingMemoryObject::getPointer

2016-03-27 23:00:59 +00:00

StringPool.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

StringSaver.h

There is only one saver of strings.

2015-08-13 01:07:02 +00:00

SwapByteOrder.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

SystemUtils.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

TargetParser.h

Add unittests to {ARM | AArch64}TargetParser.

2016-07-28 06:11:18 +00:00

TargetRegistry.h

MC] Provide an MCTargetOptions to implementors of MCAsmBackendCtorTy, NFC

2016-07-25 17:18:28 +00:00

TargetSelect.h

Whitespace.

2015-08-10 04:22:09 +00:00

thread.h

Add hardware_concurrency interface to llvm::thread (NFC)

2016-03-04 00:25:54 +00:00

Threading.h

Disable the use of std::call_once on PowerPC due to an apparent bug in

2016-06-05 02:46:01 +00:00

ThreadLocal.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ThreadPool.h

Add <atomic> to ThreadPool.h, since std::atomic is used

2016-03-24 20:39:17 +00:00

Timer.h

[Timer] Add missing slash in doxygen commit.

2016-05-27 20:04:16 +00:00

TimeValue.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ToolOutputFile.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

TrailingObjects.h

Reapply r273664 with workaround for MSVC

2016-06-25 11:23:59 +00:00

type_traits.h

Add some missing #includes, found by C++ modules selfhost.

2016-04-16 00:42:37 +00:00

TypeName.h

[Support] Don't check for ICC directly and rely on the __GNUC__ check

2016-02-25 06:13:01 +00:00

Unicode.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

UnicodeCharRanges.h

[Support] Add comment to explain why we can't drop NDEBUG.

2015-10-24 22:15:32 +00:00

UniqueLock.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Valgrind.h

Fix Clang-tidy modernize-deprecated-headers warnings in some files; other minor fixes.

2016-03-28 17:40:08 +00:00

Watchdog.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

Win64EH.h

Support: Delete {aligned_,}{u,}{little,big}8_t

2014-09-11 21:46:33 +00:00

WindowsError.h

Canonicalize header guards into a common format.

2014-08-13 16:26:38 +00:00

YAMLParser.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

YAMLTraits.h

[yaml] Add a ScalarTraits for mapping endian aware types.

2016-06-07 19:32:09 +00:00