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* lldb can interrupt waitpid, so EINTR shouldn't be an error. This fixes the caseJulien Lerouge2014-06-27
| | | | | | | | | | | where there is no timeout. In the case where there is a timeout though, the code is still wrong since it doesn't check that the alarm really went off. Without this patch, I cannot debug a program that forks itself using sys::ExecuteAndWait with lldb. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211918 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply r211287: Remove support for LLVM runtime multi-threading.Chandler Carruth2014-06-27
| | | | | | | I'll fix the problems in libclang and other projects in ways that don't require <mutex> until we sort out the cygwin situation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211900 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Introduce a string_ostream string builder facilty"Alp Toker2014-06-26
| | | | | | Temporarily back out commits r211749, r211752 and r211754. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211814 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for ppc64/power8 as a hostWill Schmidt2014-06-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211781 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce a string_ostream string builder faciltyAlp Toker2014-06-26
| | | | | | | | | | | | | | | | | | | | string_ostream is a safe and efficient string builder that combines opaque stack storage with a built-in ostream interface. small_string_ostream<bytes> additionally permits an explicit stack storage size other than the default 128 bytes to be provided. Beyond that, storage is transferred to the heap. This convenient class can be used in most places an std::string+raw_string_ostream pair or SmallString<>+raw_svector_ostream pair would previously have been used, in order to guarantee consistent access without byte truncation. The patch also converts much of LLVM to use the new facility. These changes include several probable bug fixes for truncated output, a programming error that's no longer possible with the new interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211749 91177308-0d34-0410-b5e6-96231b3b80d8
* For CrashRecoveryContext::RunSafelyOnThread, propagate Darwin's ↵Argyrios Kyrtzidis2014-06-25
| | | | | | | | | | | | | PRIO_DARWIN_BG to the new thread if it is set on the calling thread. This allows libclang's indexing threads to propagate their priority to the clang module building threads. rdar://17459872 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211747 91177308-0d34-0410-b5e6-96231b3b80d8
* Random Number Generator (llvm)JF Bastien2014-06-25
| | | | | | | | | | | | | | | | | | | | | | | | Provides an abstraction for a random number generator (RNG) that produces a stream of pseudo-random numbers. The current implementation uses C++11 facilities and is therefore not cryptographically secure. The RNG is salted with the text of the current command line invocation. In addition, a user may specify a seed (reproducible builds). In clang, the seed can be set via -frandom-seed=X In the back end, the seed can be set via -rng-seed=X This is the llvm part of the patch. clang part: D3391 URL: http://reviews.llvm.org/D3390 Author: yln I'm landing this for the second time, it broke Windows bots the first time around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211705 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't leak a file descriptor.Rafael Espindola2014-06-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211699 91177308-0d34-0410-b5e6-96231b3b80d8
* Code cleanup.Logan Chien2014-06-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211697 91177308-0d34-0410-b5e6-96231b3b80d8
* Use SourceMgr::getMemoryBuffer() in a couple of placesAlp Toker2014-06-25
| | | | | | Cleanup only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211656 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert: r211588 - [mips] Use __clear_cache builtin instead of cacheflush() ↵Daniel Sanders2014-06-24
| | | | | | | | | | | | | in Unix Memory::InvalidateInstructionCache() Buildbot reports a test failure on the llvm-mips-linux builder and blames r211588. Although it doesn't appear in the blamelist, it seems it could also be r211587 (because it's committed to compiler-rt?) since they were tested together. Reverting the most likely suspect (r211588) to confirm one way or the other. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211594 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r211287, "Remove support for LLVM runtime multi-threading."NAKAMURA Takumi2014-06-24
| | | | | | libclang still requires it on cygming, lack of incomplete <mutex>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211592 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Use __clear_cache builtin instead of cacheflush() in Unix ↵Daniel Sanders2014-06-24
| | | | | | | | | | | | Memory::InvalidateInstructionCache() MIPS64 Android bionic has removed cacheflush(). Use __clear_cache() instead for 32-bit and 64-bit MIPS Patch by Duane Sand <Duane.Sand@imgtec.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211588 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Move class ScaledNumberDuncan P. N. Exon Smith2014-06-24
| | | | | | | | ScaledNumber has been cleaned up enough to pull out of BFI now. Still work to do there (tests for shifting, bloated printing code, etc.), but it seems clean enough for its new home. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211562 91177308-0d34-0410-b5e6-96231b3b80d8
* Recommit 211309 (StringMap::insert), reverted in 211328 due to issues with ↵David Blaikie2014-06-23
| | | | | | | | | | | | private, but non-deleted, move members. Certain versions of GCC (~4.7) couldn't handle the SFINAE on access control, but with "= delete" (hidden behind a macro for portability) this issue is worked around/addressed. Patch by Agustín Bergé git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211525 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Extract ScaledNumbers::compare()Duncan P. N. Exon Smith2014-06-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211507 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the MinGW builder. Apparently std::call_once andZachary Turner2014-06-21
| | | | | | | | std::recursive_mutex are not available on MinGW and breaks the builder. Revert to using a function local static and sys::Mutex just to get the tree green until we figure out a better solution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211424 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Write ScaledNumber::getQuotient() and getProduct()Duncan P. N. Exon Smith2014-06-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211409 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix .cpp files claiming to be header filesHans Wennborg2014-06-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211334 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Add StringMap::insert(pair) consistent with the standard associative ↵Rafael Espindola2014-06-20
| | | | | | | | | | | | container concept." This reverts commit r211309. It looks like it broke some bots: http://lab.llvm.org:8011/builders/clang-x86_64-ubuntu-gdb-75/builds/15563/steps/compile/logs/stdio git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211328 91177308-0d34-0410-b5e6-96231b3b80d8
* Add StringMap::insert(pair) consistent with the standard associative ↵David Blaikie2014-06-19
| | | | | | | | container concept. Patch by Agustín Bergé. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211309 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Add llvm::sys::fs::copy_fileJustin Bogner2014-06-19
| | | | | | A function to copy one file's contents to another. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211302 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove use of removed function, llvm_stop_multithreadingDavid Blaikie2014-06-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211291 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove support for LLVM runtime multi-threading.Zachary Turner2014-06-19
| | | | | | | | | | | | | After a number of previous small iterations, the functions llvm_start_multithreaded() and llvm_stop_multithreaded() have been reduced essentially to no-ops. This change removes them entirely. Reviewed by: rnk, dblaikie Differential Revision: http://reviews.llvm.org/D4216 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211287 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill the LLVM global lock.Zachary Turner2014-06-19
| | | | | | | | | | | | | | This patch removes the LLVM global lock, and updates all existing users of the global lock to use their own mutex. None of the existing users of the global lock were protecting code that was mutually exclusive with any of the other users of the global lock, so its purpose was not being met. Reviewed by: rnk Differential Revision: http://reviews.llvm.org/D4142 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211277 91177308-0d34-0410-b5e6-96231b3b80d8
* CommandLine: bail out when options get multiply registeredAlp Toker2014-06-19
| | | | | | | | | | These errors are strictly unrecoverable and indicate serious issues such as conflicting option names or an incorrectly linked LLVM distribution. With this change, the errors actually get detected so tests don't pass silently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211260 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Random Number Generator (llvm)"JF Bastien2014-06-18
| | | | | | | | This reverts commit cccba093090d127e0b6d17473b14c264c14c5259. It causes build breakage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211146 91177308-0d34-0410-b5e6-96231b3b80d8
* Random Number Generator (llvm)JF Bastien2014-06-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Provides an abstraction for a random number generator (RNG) that produces a stream of pseudo-random numbers. The current implementation uses C++11 facilities and is therefore not cryptographically secure. The RNG is salted with the text of the current command line invocation. In addition, a user may specify a seed (reproducible builds). In clang, the seed can be set via -frandom-seed=X In the back end, the seed can be set via -rng-seed=X This is the llvm part of the patch. clang part: D3391 Reviewers: ahomescu, rinon, nicholas, jfb Reviewed By: jfb Subscribers: jfb, perl Differential Revision: http://reviews.llvm.org/D3390 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211145 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge lib/Support/WindowsError.cpp into ib/Support/ErrorHandling.cpp.Rafael Espindola2014-06-17
| | | | | | | The OSX ranlib warns on files with no symbols, and lib/Support/WindowsError.cpp was empty when building on non-windows. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211118 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Inject LLVM_VERSION_INFO into the Support libraryJustin Bogner2014-06-17
| | | | | | | | Mimic r116632 in passing LLVM_VERSION_INFO from the Makefile build system to the build. This improves the -version output of tools that use llvm::cl under the configure+make system. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211091 91177308-0d34-0410-b5e6-96231b3b80d8
* tools: Add a space between package version and LLVM_VERSION_INFOJustin Bogner2014-06-17
| | | | | | This reads a little strangely. Add a space to clean it up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211090 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an overload for SourceMgr::PrintMessage that takes an existing diagnostic.Jordan Rose2014-06-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211087 91177308-0d34-0410-b5e6-96231b3b80d8
* Modernize doc comments for SourceMgr.Jordan Rose2014-06-17
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211086 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r211066, 211067, 211068, 211069, 211070.Zachary Turner2014-06-16
| | | | | | | These were committed accidentally from the wrong branch before having a review sign-off. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211072 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill the LLVM global lock.Zachary Turner2014-06-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211069 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some code churn.Zachary Turner2014-06-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211068 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some more code out into a separate CL.Zachary Turner2014-06-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211067 91177308-0d34-0410-b5e6-96231b3b80d8
* Users of the llvm global mutex must now acquire it manually.Zachary Turner2014-06-16
| | | | | | This allows the mutex to be acquired in a guarded, RAII fashion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211066 91177308-0d34-0410-b5e6-96231b3b80d8
* Support/ConvertUTF: restore compatibility with MSVC, which only implements C89Dmitri Gribenko2014-06-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211016 91177308-0d34-0410-b5e6-96231b3b80d8
* Support/ConvertUTF: implement U+FFFD insertion according to the recommendationDmitri Gribenko2014-06-16
| | | | | | | | | | given in the Unicode spec That is, replace every maximal subpart of an ill-formed subsequence with one U+FFFD. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211015 91177308-0d34-0410-b5e6-96231b3b80d8
* Using llvm::sys::swapByteOrder() for the common case of byte-swapping a ↵Artyom Skrobov2014-06-14
| | | | | | value in place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210978 91177308-0d34-0410-b5e6-96231b3b80d8
* Renaming SwapByteOrder() to getSwappedBytes()Artyom Skrobov2014-06-14
| | | | | | | | The next commit will add swapByteOrder(), acting in-place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210973 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the error-handling functions thread-safe.Zachary Turner2014-06-13
| | | | | | | | | | | | | Prior to this change, error handling functions must be installed and removed only inside of an llvm_[start/stop]_multithreading pair. This change allows error handling functions to be installed any time, and from any thread. Reviewed by: chandlerc Differential Revision: http://reviews.llvm.org/D4140 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210937 91177308-0d34-0410-b5e6-96231b3b80d8
* Finishing touch for the std::error_code transition.Rafael Espindola2014-06-13
| | | | | | | | | | | While std::error_code itself seems to work OK in all platforms, there are few annoying differences with regards to the std::errc enumeration. This patch adds a simple llvm enumeration, which will hopefully avoid build breakages in other platforms and surprises as we get more uses of std::error_code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210920 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix build on windows.Rafael Espindola2014-06-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210873 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove 'using std::errro_code' from lib.Rafael Espindola2014-06-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210871 91177308-0d34-0410-b5e6-96231b3b80d8
* Try to fix the windows build.Rafael Espindola2014-06-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210837 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use 'using std::error_code' in include/llvm.Rafael Espindola2014-06-12
| | | | | | This should make sure that most new uses use the std prefix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210835 91177308-0d34-0410-b5e6-96231b3b80d8
* Trying to fix the windows build.Rafael Espindola2014-06-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210805 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove system_error.h.Rafael Espindola2014-06-12
| | | | | | | This is a minimal change to remove the header. I will remove the occurrences of "using std::error_code" in a followup patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210803 91177308-0d34-0410-b5e6-96231b3b80d8
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