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* 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
* PR10140 - StringPool's PooledStringPtr has non-const operator== causing bad ↵Nikola Smiljanic2014-06-19
| | | | | | | | OR-result. Mark conversion operator explicit and const qualify comparison operators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211244 91177308-0d34-0410-b5e6-96231b3b80d8
* ConvertUTF tests: remove uses of initializer lists to restore compatibilityDmitri Gribenko2014-06-17
| | | | | | | with MSVC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211093 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
* 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
* 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
* Adding llvm::sys::swapByteOrder() for the common use-case of byte-swapping a ↵Artyom Skrobov2014-06-14
| | | | | | value in place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210976 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
* 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
* Remove the last uses of 'using std::error_code'Rafael Espindola2014-06-13
| | | | | | This finishes the transition to std::error_code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210877 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
* Remove unused has_magic.Rafael Espindola2014-06-11
| | | | | | | This will allow inlining get_magic, which should in turn fix one of the mingw build problems after the switch to std::error_code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210712 91177308-0d34-0410-b5e6-96231b3b80d8
* Use std::error_code instead of llvm::error_code.Rafael Espindola2014-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea of this patch is to turn llvm/Support/system_error.h into a transitional header that just brings in the erorr_code api to the llvm namespace. I will remove it shortly afterwards. The cases where the general idea needed some tweaking: * std::errc is a namespace in msvc, so we cannot use "using std::errc". I could add an #ifdef, but there were not that many uses, so I just added std:: to them in this patch. * Template specialization had to be moved to the std namespace in this patch set already. * The msvc implementation of default_error_condition doesn't seem to provide the same transformations as we need. Not too surprising since the standard doesn't actually say what "equivalent" means. I fixed the problem by keeping our old mapping and using it at error_code construction time. Despite these shortcomings I think this is still a good thing. Some reasons: * The different implementations of system_error might improve over time. * It removes 925 lines of code from llvm already. * It removes 6313 bytes from the text segment of the clang binary when it is built with gcc and 2816 bytes when building with clang and libstdc++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210687 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove windows_error.Rafael Espindola2014-06-11
| | | | | | | | | | MSVC doesn't seem to provide any is_error_code_enum enumeration for the windows errors. Fortunately very few places in llvm have to handle raw windows errors, so we can just construct the corresponding error_code directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210631 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Use 'nullptr'.Craig Topper2014-06-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210442 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this operator bool() explicit to match the standard library.Rafael Espindola2014-06-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210072 91177308-0d34-0410-b5e6-96231b3b80d8
* Use error_code() instead of error_code::succes()Rafael Espindola2014-05-31
| | | | | | | There is no std::error_code::success, so this removes much of the noise in transitioning to std::error_code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209952 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the behavior of ExecuteAndWait with a non-zero timeout.Peter Collingbourne2014-05-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209951 91177308-0d34-0410-b5e6-96231b3b80d8
* Use std::unique_ptr instead of OwningPtr in the MemoryBuffer unittests.Craig Topper2014-05-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209102 91177308-0d34-0410-b5e6-96231b3b80d8
* SupportTest: Fix test names harderDuncan P. N. Exon Smith2014-04-29
| | | | | | r207552, r207553 and r207554 all had bad test names. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207560 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: More BlockFrequencyTest => BranchProbabilityTestDuncan P. N. Exon Smith2014-04-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207554 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Fix test nameDuncan P. N. Exon Smith2014-04-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207553 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: BlockFrequencyTest => BranchProbabilityTestDuncan P. N. Exon Smith2014-04-29
| | | | | | | Move a detailed test of `BranchProbability::scale()` from `BlockFrequencyTest` over to `BranchProbabilityTest`. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207552 91177308-0d34-0410-b5e6-96231b3b80d8
* blockfreq: Defer to BranchProbability::scale() (again)Duncan P. N. Exon Smith2014-04-29
| | | | | | | | | | | | Change `BlockFrequency` to defer to `BranchProbability::scale()` and `BranchProbability::scaleByInverse()`. This removes `BlockFrequency::scale()` from its API (and drops the ability to see the remainder), but the only user was the unit tests. If some code in the future needs an API that exposes the remainder, we can add something to `BranchProbability`, but I find that unlikely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207550 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Add BranchProbability::scale() and ::scaleByInverse()Duncan P. N. Exon Smith2014-04-29
| | | | | | | Add API to `BranchProbability` for scaling big integers. Next job is to rip the logic out of `BlockMass` and `BlockFrequency`. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207544 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Add unit tests for BranchProbabilityDuncan P. N. Exon Smith2014-04-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207540 91177308-0d34-0410-b5e6-96231b3b80d8
* [ADT] Generalize pointee_iterator to smart pointers by using decltype.Chandler Carruth2014-04-24
| | | | | | Based on review feedback from Dave on the original patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207146 91177308-0d34-0410-b5e6-96231b3b80d8
* [ADT] Add a generic iterator utility for adapting iterators much likeChandler Carruth2014-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | Boost's iterator_adaptor, and a specific adaptor which iterates over pointees when wrapped around an iterator over pointers. This is the result of a long discussion on IRC with Duncan Smith, Dave Blaikie, Richard Smith, and myself. Essentially, I could use some subset of the iterator facade facilities often used from Boost, and everyone seemed interested in having the functionality in a reasonably generic form. I've tried to strike a balance between the pragmatism and the established Boost design. The primary differences are: 1) Delegating to the standard iterator interface names rather than special names that then make up a second iterator-like API. 2) Using the name 'pointee_iterator' which seems more clear than 'indirect_iterator'. The whole business of calling the '*p' operation 'pointer indirection' in the standard is ... quite confusing. And 'dereference' is no better of a term for moving from a pointer to a reference. Hoping Duncan, and others continue to provide comments on this until we've got a nice, minimal abstraction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207069 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Make BumpPtrAllocator movable and move assignable.Chandler Carruth2014-04-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206372 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Finally, finish nuking the redundant code that led me hereChandler Carruth2014-04-15
| | | | | | | | | | | | | | | | by removing the MallocSlabAllocator entirely and just using MallocAllocator directly. This makes all off these allocators expose and utilize the same core interface. The only ugly part of this is that it exposes the fact that the JIT allocator has no real handling of alignment, any more than the malloc allocator does. =/ It would be nice to fix both of these to support alignments, and then to leverage that in the BumpPtrAllocator to do less over allocation in order to manually align pointers. But, that's another patch for another day. This patch has no functional impact, it just removes the somewhat meaningless wrapper around MallocAllocator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206267 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Make the underlying allocator a template instead of anChandler Carruth2014-04-14
| | | | | | | | | | | | abstract interface. The only user of this functionality is the JIT memory manager and it is quite happy to have a custom type here. This removes a virtual function call and a lot of unnecessary abstraction from the common case where this is just a *very* thin vaneer around a call to malloc. Hopefully still no functionality changed here. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206149 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Switch the BumpPtrAllocator to use a vector of pointers toChandler Carruth2014-04-14
| | | | | | | | | | | | | | | | | | | | | | | slabs rather than embedding a singly linked list in the slabs themselves. This has a few advantages: - Better utilization of the slab's memory by not wasting 16-bytes at the front. - Simpler allocation strategy by not having a struct packed at the front. - Avoids paging every allocated slab in just to traverse them for deallocating or dumping stats. The latter is the really nice part. Folks have complained from time to time bitterly that tearing down a BumpPtrAllocator, even if it doesn't run any destructors, pages in all of the memory allocated. Now it won't. =] Also resolves a FIXME with the scaling of the slab sizes. The scaling now disregards specially sized slabs for allocations larger than the threshold. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206147 91177308-0d34-0410-b5e6-96231b3b80d8
* YAMLIO: Allow scalars to dictate quotation rulesDavid Majnemer2014-04-10
| | | | | | | Introduce ScalarTraits::mustQuote which determines whether or not a StringRef needs quoting before it is acceptable to output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205955 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Revert "YAMLIO: Encode ambiguous hex strings explicitly""David Majnemer2014-04-09
| | | | | | | | | Don't quote octal compatible strings if they are only two wide, they aren't ambiguous. This reverts commit r205857 which reverted r205857. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205914 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "YAMLIO: Encode ambiguous hex strings explicitly"Filipe Cabecinhas2014-04-09
| | | | | | | | This reverts commit r205839. It broke several tests in lld. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205857 91177308-0d34-0410-b5e6-96231b3b80d8
* YAMLIO: Encode ambiguous hex strings explicitlyDavid Majnemer2014-04-09
| | | | | | | | | | YAMLIO would turn a BinaryRef into the string 0000000004000000. However, the leading zero causes parsers to interpret it as being an octal number instead of a hexadecimal one. Instead, escape such strings as needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205839 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify compression API by compressing into a SmallVector rather than a ↵David Blaikie2014-04-05
| | | | | | | | MemoryBuffer This is the other half of r205676. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205677 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify compression API by decompressing into a SmallVector rather than a ↵David Blaikie2014-04-05
| | | | | | | | | | | | MemoryBuffer This avoids an extra copy during decompression and avoids the use of MemoryBuffer which is a weirdly esoteric device that includes unrelated concepts like "file name" (its rather generic name is a bit misleading). Similar refactoring of zlib::compress coming up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205676 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Lift the slab size and size threshold into templateChandler Carruth2014-03-30
| | | | | | | | | | parameters rather than runtime parameters. There is only one user of these parameters and they are compile time for that user. Making these compile time seems to better reflect their intended usage as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205143 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Simplify unittests by using the default size parameters inChandler Carruth2014-03-30
| | | | | | more places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205141 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix these tests on windows.Rafael Espindola2014-03-25
| | | | | | | | | It is impossible to create a hard link to a non existing file, so create a dummy file, create the link an delete the dummy file. On windows one cannot remove the current directory, so chdir first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204719 91177308-0d34-0410-b5e6-96231b3b80d8
* SupportTests.LockFileManagerTest: Add assertions for Win32.NAKAMURA Takumi2014-03-23
| | | | | | | - create_link doesn't work for nonexistent file. - remove cannot remove working directory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204579 91177308-0d34-0410-b5e6-96231b3b80d8
* Suppress SupportTests.LockFileManagerTest on win32 for investigating.NAKAMURA Takumi2014-03-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204533 91177308-0d34-0410-b5e6-96231b3b80d8
* [Support] Make sure LockFileManager works correctly with relative paths.Argyrios Kyrtzidis2014-03-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204426 91177308-0d34-0410-b5e6-96231b3b80d8
* [Support] Make sure sys::fs::remove can remove symbolic links and make sure ↵Argyrios Kyrtzidis2014-03-21
| | | | | | LockFileManager can handle a symbolic link that points nowhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204422 91177308-0d34-0410-b5e6-96231b3b80d8
* support: add a utility function to normalise path separatorsSaleem Abdulrasool2014-03-11
| | | | | | | | Add a utility function to convert the Windows path separator to Unix style path separators. This is used by a subsequent change in clang to enable the use of Windows SDK headers on Linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203611 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup the interface for creating soft or hard links.Rafael Espindola2014-03-11
| | | | | | | | | | | | Before this patch the unix code for creating hardlinks was unused. The code for creating symbolic links was implemented in lib/Support/LockFileManager.cpp and the code for creating hard links in lib/Support/*/Path.inc. The only use we have for these is in LockFileManager.cpp and it can use both soft and hard links. Just have a create_link function that creates one or the other depending on the platform. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203596 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Replace LLVM-style type traits with C++11 standard ones.Benjamin Kramer2014-03-07
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203242 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace OwningPtr<T> with std::unique_ptr<T>.Ahmed Charles2014-03-06
| | | | | | | | | | This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203083 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an inconsistency in treatment of trailing / in path::const_iteratorBen Langmuir2014-03-05
| | | | | | | | | When using a //net/ path, we were transforming the trailing / into a '.' when the path was just the root path and we were iterating backwards. Forwards iteration and other kinds of root path (C:\, /) were already correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202999 91177308-0d34-0410-b5e6-96231b3b80d8