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* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* Fix aligned allocation availability XFAILs after D56445.Eric Fiselier2019-01-198-16/+24
| | | | | | | | | | D56445 bumped the minimum Mac OS X version required for aligned allocation from 10.13 to 10.14. This caused libc++ tests depending on the old value to break. This patch updates the XFAILs for those tests to include 10.13. llvm-svn: 351625
* correct script name in generated testsEric Fiselier2019-01-1643-89/+91
| | | | llvm-svn: 351299
* Attempt to make test_macros.h even more minimalEric Fiselier2019-01-161-1/+12
| | | | llvm-svn: 351292
* Fix feature test macros for atomics/mutexes without threadingEric Fiselier2019-01-164-73/+177
| | | | llvm-svn: 351291
* Fix PR40230 - std::pair may have padding on FreeBSD.Eric Fiselier2019-01-162-2/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: FreeBSD ships a very old and deprecated ABI for std::pair where the copy and move constructors are not allowed to be trivial. D25389 change how this was implemented by introducing a non-trivial base class. This patch, introduced in October 2016, introduced an ABI bug that caused nested `std::pair` instantiations to have padding. For example: ``` using PairT = std::pair< std::pair<char, char>, char >; static_assert(offsetof(PairT, first) == 0, "First member should exist at offset zero"); // Fails on FreeBSD! ``` The bug occurs because the base class for the first element (the nested pair) cannot be put at offset zero because the top-level pair already has the same base class laid out there. This patch fixes that ABI bug by templating the dummy base class on the same parameters as the pair. Technically this fix is an ABI break for users who depend on the "broken" ABI introduced in 2016. I'm putting this up for review so that the FreeBSD maintainers can sign off on fixing the ABI by breaking the ABI. Another option, since we have to "break" the ABI to fix it, would be to move FreeBSD off the deprecated non-trivial pair ABI instead. Also see: * https://llvm.org/PR40230 * https://reviews.llvm.org/D21329 Reviewers: rsmith, dim, emaste Reviewed By: rsmith Subscribers: mclow.lists, krytarowski, christof, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D56357 llvm-svn: 351290
* Move internal usages of `alignof`/`__alignof` to use `_LIBCPP_ALIGNOF`. Eric Fiselier2019-01-165-10/+52
| | | | | | | | | | | | | | | | | | | | | Summary: Starting in Clang 8.0 and GCC 8.0, `alignof` and `__alignof` return different values in same cases. Specifically `alignof` and `_Alignof` return the minimum alignment for a type, where as `__alignof` returns the preferred alignment. libc++ currently uses `__alignof` but means to use `alignof`. See llvm.org/PR39713 This patch introduces the macro `_LIBCPP_ALIGNOF` so we can control which spelling gets used. This patch does not introduce any ABI guard to provide the old behavior with newer compilers. However, if we decide that is needed, this patch makes it trivial to implement. I think we should commit this change immediately, and decide what we want to do about the ABI afterwards. Reviewers: ldionne, EricWF Reviewed By: ldionne, EricWF Subscribers: jyknight, christof, libcxx-commits Differential Revision: https://reviews.llvm.org/D54814 llvm-svn: 351289
* Implement feature test macros using a script.Eric Fiselier2019-01-1644-1054/+7080
| | | | | | | | | | | | | | | | | | | | Summary: This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a. The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++. When a new feature test macro is added or needed, the table should be updated and the script re-run. Reviewers: mclow.lists, jfb, serge-sans-paille Reviewed By: mclow.lists Subscribers: arphaman, jfb, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D56750 llvm-svn: 351286
* Add large file support to create_file for 32-bit.Dan Albert2019-01-151-5/+41
| | | | | | | | | | | | | | | | | | Summary: The tests need to create files larger than 2GB, but size_t is 32-bit on a 32-bit system. Make use of explicit off64_t APIs so we can still use a default off_t for the tests while enabling 64-bit file offsets for create_file. Reviewers: mclow.lists, EricWF Reviewed By: EricWF Subscribers: christof, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D56619 llvm-svn: 351225
* [libc++] Support different libc++ namespaces in the iterator testPetr Hosek2019-01-151-30/+30
| | | | | | | | | libc++ allows changing the namespace, don't assume __1 in the test to avoid the test failure if different namespace is being used. Differential Revision: https://reviews.llvm.org/D56698 llvm-svn: 351220
* [test] Fix logic error in <compare> tests; enable for MSVC Dev16Casey Carter2019-01-154-4/+5
| | | | | | Submitted upstream as https://reviews.llvm.org/D53763. llvm-svn: 351148
* Generalize the comparison test structure to support cross-type comparisons. ↵Marshall Clow2019-01-151-36/+36
| | | | | | NFC to the library llvm-svn: 351140
* Change from a to a . Fixes PR#39871.Marshall Clow2019-01-113-8/+8
| | | | llvm-svn: 350972
* Don't use the form '2017y' in tests, since some gcc versions don't allow itMarshall Clow2019-01-112-6/+6
| | | | llvm-svn: 350930
* Implement the 'sys_time' portions of the C++20 calendaring stuff. Reviewed ↵Marshall Clow2019-01-1120-113/+1052
| | | | | | as D56494 llvm-svn: 350929
* [libcxx] Reorganize tests since the application of P0602R4Louis Dionne2019-01-1010-105/+287
| | | | | | | | | | | | | | | | | Summary: P0602R4 makes the special member functions of optional and variant conditionally trivial based on the types in the optional/variant. We already implemented that, but the tests were organized as if this were a non-standard extension. This patch reorganizes the tests in a way that makes more sense since this is not an extension anymore. Reviewers: EricWF, mpark, mclow.lists Subscribers: christof, jkorous, dexonsmith, libcxx-commits Differential Revision: https://reviews.llvm.org/D54772 llvm-svn: 350884
* Filesystem tests: fix fs.op.relativeJF Bastien2019-01-101-43/+83
| | | | | | | | | | | | Summary: The test wasn't using the testing infrastructure properly. Reviewers: ldionne, mclow.lists, EricWF Subscribers: christof, jkorous, dexonsmith, libcxx-commits Differential Revision: https://reviews.llvm.org/D56519 llvm-svn: 350872
* [NFC] Always lock free test: add indirectionJF Bastien2019-01-091-1/+3
| | | | | | | | I have a big patch coming up, and this indirection is required to avoid hitting the following after my big change: error: empty struct has size 0 in C, size 1 in C++ [-Werror,-Wextern-c-compat] llvm-svn: 350772
* [NFC] Normalize some test 'main' signaturesJF Bastien2019-01-099-15/+9
| | | | | | There were 3 tests with 'int main(void)', and 6 with the return type on a different line. I'm about to send a patch for main in tests, and this NFC change is unrelated. llvm-svn: 350770
* Mark two UDL tests as being unsupported with Clang 7Eric Fiselier2019-01-092-2/+2
| | | | llvm-svn: 350739
* [libcxx] Remove outdated XFAILs for aligned deallocationLouis Dionne2019-01-091-10/+0
| | | | | | AppleClang 10 has been fixed and so these tests don't fail anymore. llvm-svn: 350736
* Mark two more tests as FLAKYEric Fiselier2019-01-092-0/+4
| | | | llvm-svn: 350692
* [Sema] Teach Clang that aligned allocation is not supported with macosx10.13Louis Dionne2019-01-082-9/+18
| | | | | | | | | | | | | | | | | Summary: r306722 added diagnostics when aligned allocation is used with deployment targets that do not support it, but the first macosx supporting aligned allocation was incorrectly set to 10.13. In reality, the dylib shipped with macosx10.13 does not support aligned allocation, but the dylib shipped with macosx10.14 does. Reviewers: ahatanak Subscribers: christof, jkorous, dexonsmith, cfe-commits Differential Revision: https://reviews.llvm.org/D56445 llvm-svn: 350649
* Set the buffer of an fstream to empty when the underlying file is closed. ↵Marshall Clow2019-01-081-0/+35
| | | | | | This 'fixes' PR#38052 - std::fstream still good after closing and updating content. llvm-svn: 350603
* [libcxx] Optimize vectors construction of trivial types from an iterator ↵Volodymyr Sapsai2019-01-081-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | range with const-ness mismatch. We already have a specialization that will use memcpy for construction of trivial types from an iterator range like std::vector<int>(int *, int *); But if we have const-ness mismatch like std::vector<int>(const int *, const int *); we would use a slow path that copies each element individually. This change enables the optimal specialization for const-ness mismatch. Fixes PR37574. Contributions to the patch are made by Arthur O'Dwyer, Louis Dionne. rdar://problem/40485845 Reviewers: mclow.lists, EricWF, ldionne, scanon Reviewed By: ldionne Subscribers: christof, ldionne, howard.hinnant, cfe-commits Differential Revision: https://reviews.llvm.org/D48342 llvm-svn: 350583
* Mark more tests as flakyEric Fiselier2019-01-075-0/+10
| | | | llvm-svn: 350550
* Add the feature test macros that were defined in p1353r0 to the headers of ↵Marshall Clow2019-01-073-1/+35
| | | | | | the appropriate tests. No actual tests yet, so NFC. llvm-svn: 350535
* Fix PR39749 - Headers containing just #error harm __has_include.Eric Fiselier2019-01-0616-0/+312
| | | | | | | | | | | This patch changes <experimental/foo> to use #warning instead of is harmful to common feature detection idioms. We should also consider only emitting the warning when __DEPRECATED is defined, like we do in the <ext/foo> headers. Users may want to specify "-Werror=-W#warnings" while still ignoring the libc++ warnings. llvm-svn: 350485
* Fix flaky symlink access time test.Eric Fiselier2019-01-051-5/+7
| | | | | | | | | | | | | | | last_write_time(sym, new_time) changes the modification time of the file referenced by the symlink. But reading through the symlink may change the symlinks's access time. This meant the previous test that checked that the symlinks access time was unchanged was incorrect and made the test flaky. This patch removes this test (there really is no non-flaky way to test that the new access time coorisponds to the time at which the symlink was last dereferenced). This should unflake the test. llvm-svn: 350478
* De-tab a couple tests. NFCMarshall Clow2019-01-033-6/+6
| | | | llvm-svn: 350330
* Fix test case breakages caused by lexically_relative changeEric Fiselier2018-12-211-3/+3
| | | | llvm-svn: 349888
* Fix copy paste error in file_clock testsEric Fiselier2018-12-211-3/+3
| | | | llvm-svn: 349886
* Implement LWG 3096: path::lexically_relative is confused by trailing slashesEric Fiselier2018-12-211-2/+2
| | | | | | path("/dir/").lexically_relative("/dir"); now returns "." instead of "" llvm-svn: 349885
* Implement LWG 3065: Make path operators friends.Eric Fiselier2018-12-213-1/+63
| | | | | | | | | This prevents things like: using namespace std::filesystem; auto x = L"a/b" == std::string("a/b"); llvm-svn: 349884
* Implement LWG 3145: file_clock breaks ABI for C++17 implementations.Eric Fiselier2018-12-214-0/+128
| | | | | | | This patch adds std::chrono::file_clock, but without breaking the existing ABI for std::filesystem. llvm-svn: 349883
* Implement LWG 2936: Path comparison is defined in terms of the generic formatEric Fiselier2018-12-211-1/+54
| | | | | | | | | This patch implements path::compare according to the current spec. The only observable change is the ordering of "/foo" and "foo", which orders the two paths based on having or not having a root directory (instead of lexically comparing "/" to "foo"). llvm-svn: 349881
* [libcxx] Fix order checking in unordered_multimap tests.Louis Dionne2018-12-206-152/+379
| | | | | | | | | | | | | | | Some tests assume that iteration through an unordered multimap elements will return them in the same order as at the container creation. This assumption is not true since the container is unordered, so that no specific order of elements is ever guaranteed for such container. This patch introduces checks verifying that any iteration will return elements exactly from a set of valid values and without repetition, but in no particular order. Reviewed as https://reviews.llvm.org/D54838. Thanks to Andrey Maksimov for the patch. llvm-svn: 349780
* [libcxx] Use custom allocator's `construct` in C++03 when available.Volodymyr Sapsai2018-12-194-1/+166
| | | | | | | | | | | | | | | | | Makes libc++ behavior consistent between C++03 and C++11. Can use `decltype` in C++03 because `include/__config` defines a macro when `decltype` is not available. Reviewers: mclow.lists, EricWF, erik.pilkington, ldionne Reviewed By: ldionne Subscribers: dexonsmith, cfe-commits, howard.hinnant, ldionne, christof, jkorous, Quuxplusone Differential Revision: https://reviews.llvm.org/D48753 llvm-svn: 349676
* Work around GCC 9.0 regressionEric Fiselier2018-12-191-1/+2
| | | | llvm-svn: 349663
* Add missing include to test. NFCMarshall Clow2018-12-191-0/+1
| | | | llvm-svn: 349639
* Portability fix: add missing includes and static_casts. Reviewed as ↵Marshall Clow2018-12-1823-4/+34
| | | | | | https://reviews.llvm.org/D55777. Thanks to Andrey Maksimov for the patch. llvm-svn: 349566
* Rework the C strings tests to use ASSERT_SAME_TYPE. NFC there. Also change ↵Marshall Clow2018-12-185-135/+148
| | | | | | cwchar.pass.cpp to avoid constructing a couple things from zero - since apparently they can be enums in some weird C library. NFC there, either, since the values were never used. llvm-svn: 349522
* [libcxx] Remove XFAILs for older macOS versionsLouis Dionne2018-12-181-3/+0
| | | | | | | That test doesn't fail anymore since r349378, since the assertions that r349378 removed must have been bugs in the dylib at some point. llvm-svn: 349484
* [libcxx] Handle AppleClang 9 and 10 in XFAILs for aligned allocation testsLouis Dionne2018-12-181-7/+8
| | | | | | I forgot that those don't behave like Clang trunk, again. llvm-svn: 349427
* [libcxx] Properly mark aligned allocation macro test as XFAIL on OS XLouis Dionne2018-12-181-6/+6
| | | | | | | | | This test was initially marked as XFAIL using `XFAIL: macosx10.YY`, and was then moved to `UNSUPPORTED: macosx10.YY`. The intent is to mark the test as XFAILing when a deployment target older than macosx10.14 is used, and the right way to do this is `XFAIL: availability=macosx10.YY`. llvm-svn: 349426
* Fix FP comparisons when SSE isn't availableEric Fiselier2018-12-175-30/+66
| | | | llvm-svn: 349387
* [test] Add target_info for NetBSD, and XFAIL some of locale testsMichal Gorny2018-12-1730-0/+90
| | | | | | | | | | | | | | | | | | | | Add a target_info definition for NetBSD. The definition is based on the one used by FreeBSD, with libcxxrt replaced by libc++abi, and using llvm-libunwind since we need to use its unwinder implementation to build anyway. Additionally, XFAIL the 30 tests that fail because of non-implemented locale features. According to the manual, NetBSD implements only LC_CTYPE part of locale handling. However, there is a locale database in the system and locale specifications are validated against it, so it makes sense to list the common locales as supported. If I'm counting correctly, this change enables additional 43 passing tests. Differential Revision: https://reviews.llvm.org/D55767 llvm-svn: 349379
* [test] [re.traits] Remove asserts failing due to invalid UTF-8Michal Gorny2018-12-171-5/+0
| | | | | | | | | | | Remove the two test cases for \xDA and \xFA with UTF-8 locale, as both characters alone are invalid in UTF-8 (short sequences). Upon removing them, the test passes on Linux again (and also on NetBSD, after adding appropriate locale configuration). Differential Revision: https://reviews.llvm.org/D55746 llvm-svn: 349378
* Unbreak green dragon bots w/o __builtin_launderEric Fiselier2018-12-171-2/+2
| | | | llvm-svn: 349373
* Expect Clang diagnostics in std::launder testEric Fiselier2018-12-171-0/+2
| | | | llvm-svn: 349364
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