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* Fix _LIBCPP_HAS_ definitions for Android.Dan Albert2019-11-182-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Android added quick_exit()/at_quick_exit() in API level 21, aligned_alloc() in API level 28, and timespec_get() in API level 29, but has the other C11 features at all API levels (since they're basically just coming from clang directly). _LIBCPP_HAS_QUICK_EXIT and _LIBCPP_HAS_TIMESPEC_GET already existed, so we can reuse them. (And use _LIBCPP_HAS_TIMESPEC_GET in a few more places where _LIBCPP_HAS_C11_FEATURES has been used as a proxy. This isn't correct for Android.) _LIBCPP_HAS_ALIGNED_ALLOC is added, to cover aligned_alloc() (obviously). Add a missing std:: before aligned_alloc in a cstdlib test, and remove a couple of !defined(_WIN32)s now that we're explicitly testing TEST_HAS_ALIGNED_ALLOC rather than TEST_HAS_C11_FEATURES. Reviewers: danalbert, EricWF, mclow.lists Reviewed By: danalbert Subscribers: srhines, christof, libcxx-commits Tags: #libc Differential Revision: https://reviews.llvm.org/D69929
* [libc++] [P1612] Add missing feature-test macro __cpp_lib_endian.Louis Dionne2019-11-142-0/+40
| | | | | | Thanks to Marek Kurdej for the patch. Differential Revision: https://reviews.llvm.org/D70221
* [libc++] Take 2: Implement LWG 2510Louis Dionne2019-09-262-0/+53
| | | | | | | | | | | | | | | | | | | | | | | Summary: LWG2510 makes tag types like allocator_arg_t explicitly default constructible instead of implicitly default constructible. It also makes the constructors for std::pair and std::tuple conditionally explicit based on the explicit-ness of the default constructibility for the pair/tuple's elements. This was previously committed as r372777 and reverted in r372832 due to the commit breaking LLVM's build in C++14 mode. This issue has now been addressed. Reviewers: mclow.lists Subscribers: christof, jkorous, dexonsmith, libcxx-commits Tags: #libc Differential Revision: https://reviews.llvm.org/D65161 llvm-svn: 372983
* [libc++] Purge mentions of GCC 4 from the test suiteLouis Dionne2019-09-252-8/+0
| | | | | | | | | We don't support GCC 4 and older according to the documentation, so we should pretend it doesn't exist. This is a re-application of r372787. llvm-svn: 372916
* Revert r372777: [libc++] Implement LWG 2510 and its follow-upsIlya Biryukov2019-09-254-53/+8
| | | | | | | | | | | | This also reverts: - r372778: [libc++] Implement LWG 3158 - r372782: [libc++] Try fixing tests that fail on GCC 5 and older - r372787: Purge mentions of GCC 4 from the test suite Reason: the change breaks compilation of LLVM with libc++, for details see http://lists.llvm.org/pipermail/libcxx-dev/2019-September/000599.html llvm-svn: 372832
* [libc++] Purge mentions of GCC 4 from the test suiteLouis Dionne2019-09-243-9/+1
| | | | | | | We don't support GCC 4 and older according to the documentation, so we should pretend it doesn't exist. llvm-svn: 372787
* [libc++] Try fixing tests that fail on GCC 5 and olderLouis Dionne2019-09-241-0/+4
| | | | llvm-svn: 372782
* [libc++] Implement LWG 2510Louis Dionne2019-09-242-0/+49
| | | | | | | | | | | | | | | | | | | Summary: LWG2510 makes tag types like allocator_arg_t explicitly default constructible instead of implicitly default constructible. It also makes the constructors for std::pair and std::tuple conditionally explicit based on the explicit-ness of the default constructibility for the pair/tuple's elements. Reviewers: mclow.lists, EricWF Subscribers: christof, jkorous, dexonsmith, libcxx-commits Tags: #libc Differential Revision: https://reviews.llvm.org/D65161 llvm-svn: 372777
* libcxx: Rename .hpp files in libcxx/test/support to .hNico Weber2019-08-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | LLVM uses .h as its extension for header files. Files renamed using: for f in libcxx/test/support/*.hpp; do git mv $f ${f%.hpp}.h; done References to the files updated using: for f in $(git diff master | grep 'rename from' | cut -f 3 -d ' '); do a=$(basename $f); echo $a; rg -l $a libcxx | xargs sed -i '' "s/$a/${a%.hpp}.h/"; done HPP include guards updated manually using: for f in $(git diff master | grep 'rename from' | cut -f 3 -d ' '); do echo ${f%.hpp}.h ; done | xargs mvim Differential Revision: https://reviews.llvm.org/D66104 llvm-svn: 369481
* [libcxx] Rejigger test for destroying delete feature-test macrosLouis Dionne2019-07-161-4/+13
| | | | | | | | | In r361572, we introduced library support for C++20 destroying delete and decided to only define the library feature-test macro when the compiler supports the underlying language feature. This patch reworks the tests to mirror that. llvm-svn: 366263
* Mark destroying delete test as UNSUPPORTED with clang 7Eric Fiselier2019-07-121-1/+1
| | | | llvm-svn: 365856
* Add include for 'test_macros.h' to all the tests that were missing them. ↵Marshall Clow2019-05-3141-0/+82
| | | | | | Thanks to Zoe for the (big, but simple) patch. NFC intended. llvm-svn: 362252
* fix test for older clang versionsEric Fiselier2019-05-241-0/+1
| | | | llvm-svn: 361594
* fix destroying delete test with older apple compilersEric Fiselier2019-05-242-0/+54
| | | | llvm-svn: 361593
* P0722R3: Implement library support for destroying deleteEric Fiselier2019-05-233-6/+71
| | | | | | | | | | | | | | | | | | Summary: This provides the `std::destroying_delete_t` declaration in C++2a and after. (Even when the compiler doesn't support the language feature). However, the feature test macro `__cpp_lib_destroying_delete` is only defined when we have both language support and C++2a. Reviewers: ldionne, ckennelly, serge-sans-paille, EricWF Reviewed By: EricWF Subscribers: dexonsmith, riccibruno, christof, jwakely, jdoerfert, mclow.lists, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D55840 llvm-svn: 361572
* Implement midpoint for floating point types. Reviewed as ↵Marshall Clow2019-04-252-0/+40
| | | | | | https://reviews.llvm.org/D61014. llvm-svn: 359184
* Add std::is_constant_evaluated.Eric Fiselier2019-04-242-6/+6
| | | | | | | | | Clang recently added __builtin_is_constant_evaluated() and GCC 9.0 has it as well. This patch adds support for it in libc++. llvm-svn: 359119
* Fix implementation of ::abs and std::abs LWG 2192.Eric Fiselier2019-04-231-1/+49
| | | | | | | | | | | | | | | | | | | Summary: All overloads of `::abs` and `std::abs` must be present in both `<cmath>` and `<cstdlib>`. This is problematic to implement because C defines `fabs` in `math.h` and `labs` in `stdlib.h`. This introduces a circular dependency between the two headers. This patch implements that requirement by moving `abs` into `math.h` and making `stdlib.h` include `math.h`. In order to get the underlying C declarations from the "real" `stdlib.h` inside our `math.h` we need some trickery. Specifically we need to make `stdlib.h` include next itself. Suggestions for a cleaner implementation are welcome. Reviewers: mclow.lists, ldionne Reviewed By: ldionne Subscribers: krytarowski, fedor.sergeev, dexonsmith, jdoerfert, jsji, libcxx-commits Differential Revision: https://reviews.llvm.org/D60097 llvm-svn: 359020
* [libcxx] [test] Revert r356632 add (void) casts to operator new calls, to ↵Billy Robert O'Neal III2019-03-216-6/+6
| | | | | | suppress warnings generated by [[nodiscard]]." llvm-svn: 356635
* [libcxx] [test] Add (void) casts to operator new calls, to suppress warnings ↵Billy Robert O'Neal III2019-03-206-6/+6
| | | | | | | | generated by [[nodiscard]]. This allows these tests to pass when compiled by MSVC++. llvm-svn: 356632
* Support tests in freestandingJF Bastien2019-02-04210-210/+546
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Freestanding is *weird*. The standard allows it to differ in a bunch of odd manners from regular C++, and the committee would like to improve that situation. I'd like to make libc++ behave better with what freestanding should be, so that it can be a tool we use in improving the standard. To do that we need to try stuff out, both with "freestanding the language mode" and "freestanding the library subset". Let's start with the super basic: run the libc++ tests in freestanding, using clang as the compiler, and see what works. The easiest hack to do this: In utils/libcxx/test/config.py add: self.cxx.compile_flags += ['-ffreestanding'] Run the tests and they all fail. Why? Because in freestanding `main` isn't special. This "not special" property has two effects: main doesn't get mangled, and main isn't allowed to omit its `return` statement. The first means main gets mangled and the linker can't create a valid executable for us to test. The second means we spew out warnings (ew) and the compiler doesn't insert the `return` we omitted, and main just falls of the end and does whatever undefined behavior (if you're luck, ud2 leading to non-zero return code). Let's start my work with the basics. This patch changes all libc++ tests to declare `main` as `int main(int, char**` so it mangles consistently (enabling us to declare another `extern "C"` main for freestanding which calls the mangled one), and adds `return 0;` to all places where it was missing. This touches 6124 files, and I apologize. The former was done with The Magic Of Sed. The later was done with a (not quite correct but decent) clang tool: https://gist.github.com/jfbastien/793819ff360baa845483dde81170feed This works for most tests, though I did have to adjust a few places when e.g. the test runs with `-x c`, macros are used for main (such as for the filesystem tests), etc. Once this is in we can create a freestanding bot which will prevent further regressions. After that, we can start the real work of supporting C++ freestanding fairly well in libc++. <rdar://problem/47754795> Reviewers: ldionne, mclow.lists, EricWF Subscribers: christof, jkorous, dexonsmith, arphaman, miyuki, libcxx-commits Differential Revision: https://reviews.llvm.org/D57624 llvm-svn: 353086
* Move the feature test macros script to the utils directory.Eric Fiselier2019-02-021-975/+0
| | | | | | | It doesn't make a lot of sense to keep it with the tests, deep into the test suite directonies. llvm-svn: 352970
* [libcxx] Include <cstring> in tests that use strcmpLouis Dionne2019-01-221-2/+2
| | | | | | | Reviewed as https://reviews.llvm.org/D56503. Thanks to Andrey Maksimov for the patch. llvm-svn: 351847
* Fix aligned allocation availability XFAILs after D56445.Eric Fiselier2019-01-208-24/+40
| | | | | | | | | | 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: 351670
* Revert "Fix aligned allocation availability XFAILs after D56445."Eric Fiselier2019-01-208-24/+16
| | | | | | | | | This reverts commit r351625. That fix was incomplete. I'm reverting so I can commit a complete fix in a single revision. llvm-svn: 351669
* Update generator script to use the new license file header.Chandler Carruth2019-01-191-4/+3
| | | | llvm-svn: 351650
* Update more file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-19211-844/+633
| | | | | | | | | | | | | | | | | | to reflect the new license. These used slightly different spellings that defeated my regular expressions. 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: 351648
* 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
* Fix feature test macros for atomics/mutexes without threadingEric Fiselier2019-01-164-73/+177
| | | | llvm-svn: 351291
* Implement feature test macros using a script.Eric Fiselier2019-01-1643-1054/+7079
| | | | | | | | | | | | | | | | | | | | 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
* [test] Fix logic error in <compare> tests; enable for MSVC Dev16Casey Carter2019-01-153-3/+3
| | | | | | Submitted upstream as https://reviews.llvm.org/D53763. llvm-svn: 351148
* 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
* 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
* Implement P1209 - Adopt Consistent Container Erasure from Library ↵Marshall Clow2018-12-149-0/+100
| | | | | | Fundamentals 2 for C++20. Reviewed as https://reviews.llvm.org/D55532 llvm-svn: 349178
* Fix problems with char8_t stuff on compilers that don't support char8_t yetMarshall Clow2018-12-119-9/+9
| | | | llvm-svn: 348829
* Second part of P0482 - char8_t. Reviewed as https://reviews.llvm.org/D55308Marshall Clow2018-12-1145-8/+275
| | | | llvm-svn: 348828
* [libcxx] Remove the availability_markup LIT featureLouis Dionne2018-12-072-10/+10
| | | | | | | It is now equivalent to the 'availability' LIT feature, so there's no reason to keep both. llvm-svn: 348653
* [libcxx] Add XFAILs for aligned allocation tests on AppleClang 9Louis Dionne2018-12-068-96/+96
| | | | | | Some people are still running the test suite using AppleClang 9. llvm-svn: 348507
* First part of P0482 - Establish that char8_t is an integral type, and that ↵Marshall Clow2018-11-2932-0/+165
| | | | | | numeric_limits<char8_t> is valid and sane. (second try) llvm-svn: 347930
* Revert commit r347904 because it broke older compilersMarshall Clow2018-11-2932-165/+0
| | | | llvm-svn: 347908
* First part of P0482 - Establish that char8_t is an integral type, and that ↵Marshall Clow2018-11-2932-0/+165
| | | | | | numeric_limits<char8_t> is valid and sane. llvm-svn: 347904
* [libcxx] Fix XFAILs for aligned allocation testsLouis Dionne2018-11-268-132/+152
| | | | | | | | | | In r339743, I marked several aligned allocation tests as downright unsupported on macosx in an attempt to unbreak the build. It turns out that marking them as unuspported whenever we're on OS X is way too coarse grained. This commit marks the tests as XFAIL with more granularity. llvm-svn: 347585
* [NFC] Rename lit feature to '-fsized-deallocation' for consistencyLouis Dionne2018-11-212-2/+2
| | | | | | | The '-faligned-allocation' flag uses a feature with the same name (with a leading dash). llvm-svn: 347367
* [libcxx] [test] Strip trailing whitespace. NFC.Stephan T. Lavavej2018-11-141-1/+1
| | | | llvm-svn: 346826
* Update commnents to reflect the changes for LWG#3127. NFCMarshall Clow2018-10-222-1/+31
| | | | llvm-svn: 344951
* Update commnents to reflect the changes for LWG#3122. NFCMarshall Clow2018-10-222-0/+2
| | | | llvm-svn: 344950
* [libcxx] [test] Don't detect Windows' UCRT with TEST_COMPILER_C1XXBilly Robert O'Neal III2018-10-201-4/+2
| | | | | | The test is trying to avoid saying aligned_alloc on Windows' UCRT, which does not (and can not) implement aligned_alloc. However, it's testing for c1xx, meaning clang on Windows will fail this test when using the UCRT. llvm-svn: 344829
* Fix threaded test under no-threading configurationEric Fiselier2018-10-012-0/+4
| | | | llvm-svn: 343432
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