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2019-01-16correct script name in generated testsEric Fiselier
llvm-svn: 351299
2019-01-16Attempt to make test_macros.h even more minimalEric Fiselier
llvm-svn: 351292
2019-01-16Fix feature test macros for atomics/mutexes without threadingEric Fiselier
llvm-svn: 351291
2019-01-16Fix PR40230 - std::pair may have padding on FreeBSD.Eric Fiselier
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
2019-01-16Move internal usages of `alignof`/`__alignof` to use `_LIBCPP_ALIGNOF`. Eric Fiselier
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
2019-01-16Implement feature test macros using a script.Eric Fiselier
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
2019-01-15Add large file support to create_file for 32-bit.Dan Albert
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
2019-01-15[libc++] Support different libc++ namespaces in the iterator testPetr Hosek
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
2019-01-15[test] Fix logic error in <compare> tests; enable for MSVC Dev16Casey Carter
Submitted upstream as https://reviews.llvm.org/D53763. llvm-svn: 351148
2019-01-15Generalize the comparison test structure to support cross-type comparisons. ↵Marshall Clow
NFC to the library llvm-svn: 351140
2019-01-11Change from a to a . Fixes PR#39871.Marshall Clow
llvm-svn: 350972
2019-01-11Don't use the form '2017y' in tests, since some gcc versions don't allow itMarshall Clow
llvm-svn: 350930
2019-01-11Implement the 'sys_time' portions of the C++20 calendaring stuff. Reviewed ↵Marshall Clow
as D56494 llvm-svn: 350929
2019-01-10[libcxx] Reorganize tests since the application of P0602R4Louis Dionne
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
2019-01-10Filesystem tests: fix fs.op.relativeJF Bastien
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
2019-01-09[NFC] Always lock free test: add indirectionJF Bastien
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
2019-01-09[NFC] Normalize some test 'main' signaturesJF Bastien
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
2019-01-09Mark two UDL tests as being unsupported with Clang 7Eric Fiselier
llvm-svn: 350739
2019-01-09[libcxx] Remove outdated XFAILs for aligned deallocationLouis Dionne
AppleClang 10 has been fixed and so these tests don't fail anymore. llvm-svn: 350736
2019-01-09Mark two more tests as FLAKYEric Fiselier
llvm-svn: 350692
2019-01-08[Sema] Teach Clang that aligned allocation is not supported with macosx10.13Louis Dionne
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
2019-01-08Set the buffer of an fstream to empty when the underlying file is closed. ↵Marshall Clow
This 'fixes' PR#38052 - std::fstream still good after closing and updating content. llvm-svn: 350603
2019-01-08[libcxx] Optimize vectors construction of trivial types from an iterator ↵Volodymyr Sapsai
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
2019-01-07Mark more tests as flakyEric Fiselier
llvm-svn: 350550
2019-01-07Add the feature test macros that were defined in p1353r0 to the headers of ↵Marshall Clow
the appropriate tests. No actual tests yet, so NFC. llvm-svn: 350535
2019-01-06Fix PR39749 - Headers containing just #error harm __has_include.Eric Fiselier
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
2019-01-05Fix flaky symlink access time test.Eric Fiselier
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
2019-01-03De-tab a couple tests. NFCMarshall Clow
llvm-svn: 350330
2018-12-21Fix test case breakages caused by lexically_relative changeEric Fiselier
llvm-svn: 349888
2018-12-21Fix copy paste error in file_clock testsEric Fiselier
llvm-svn: 349886
2018-12-21Implement LWG 3096: path::lexically_relative is confused by trailing slashesEric Fiselier
path("/dir/").lexically_relative("/dir"); now returns "." instead of "" llvm-svn: 349885
2018-12-21Implement LWG 3065: Make path operators friends.Eric Fiselier
This prevents things like: using namespace std::filesystem; auto x = L"a/b" == std::string("a/b"); llvm-svn: 349884
2018-12-21Implement LWG 3145: file_clock breaks ABI for C++17 implementations.Eric Fiselier
This patch adds std::chrono::file_clock, but without breaking the existing ABI for std::filesystem. llvm-svn: 349883
2018-12-21Implement LWG 2936: Path comparison is defined in terms of the generic formatEric Fiselier
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
2018-12-20[libcxx] Fix order checking in unordered_multimap tests.Louis Dionne
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
2018-12-19[libcxx] Use custom allocator's `construct` in C++03 when available.Volodymyr Sapsai
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
2018-12-19Work around GCC 9.0 regressionEric Fiselier
llvm-svn: 349663
2018-12-19Add missing include to test. NFCMarshall Clow
llvm-svn: 349639
2018-12-18Portability fix: add missing includes and static_casts. Reviewed as ↵Marshall Clow
https://reviews.llvm.org/D55777. Thanks to Andrey Maksimov for the patch. llvm-svn: 349566
2018-12-18Rework the C strings tests to use ASSERT_SAME_TYPE. NFC there. Also change ↵Marshall Clow
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
2018-12-18[libcxx] Remove XFAILs for older macOS versionsLouis Dionne
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
2018-12-18[libcxx] Handle AppleClang 9 and 10 in XFAILs for aligned allocation testsLouis Dionne
I forgot that those don't behave like Clang trunk, again. llvm-svn: 349427
2018-12-18[libcxx] Properly mark aligned allocation macro test as XFAIL on OS XLouis Dionne
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
2018-12-17Fix FP comparisons when SSE isn't availableEric Fiselier
llvm-svn: 349387
2018-12-17[test] Add target_info for NetBSD, and XFAIL some of locale testsMichal Gorny
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
2018-12-17[test] [re.traits] Remove asserts failing due to invalid UTF-8Michal Gorny
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
2018-12-17Unbreak green dragon bots w/o __builtin_launderEric Fiselier
llvm-svn: 349373
2018-12-17Expect Clang diagnostics in std::launder testEric Fiselier
llvm-svn: 349364
2018-12-17[libcxx] Speeding up partition_point/lower_bound/upper_boundLouis Dionne
This is a re-application of r345525, which had been reverted by fear of a regression. Reviewed as https://reviews.llvm.org/D53994. Thanks to Denis Yaroshevskiy for the patch. llvm-svn: 349358
2018-12-16[test] [support] Use socket()+bind() to create unix sockets portablyMichal Gorny
Replace the mknod() call with socket() + bind() for creating unix sockets. The mknod() method is not portable and does not work on NetBSD while binding the socket should work on all systems supporting unix sockets. Differential Revision: https://reviews.llvm.org/D55576 llvm-svn: 349305
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