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* [libcxx] Do not implicitly #include assert.hDavid Zarzycki2019-09-261-1/+2
| | | | | | | | | Users should only get the assert() macros if they explicitly include them. Found after switching from the GNU C++ stdlib to the LLVM C++ stdlib. llvm-svn: 372963
* [libc++] Purge mentions of GCC 4 from the test suiteLouis Dionne2019-09-251-3/+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 Biryukov2019-09-251-0/+3
| | | | | | | | | | | | 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 Dionne2019-09-241-3/+0
| | | | | | | We don't support GCC 4 and older according to the documentation, so we should pretend it doesn't exist. llvm-svn: 372787
* Add include for 'test_macros.h' to all the tests that were missing them. ↵Marshall Clow2019-05-311-0/+2
| | | | | | Thanks to Zoe for the (big, but simple) patch. NFC intended. llvm-svn: 362252
* Support tests in freestandingJF Bastien2019-02-041-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Update more file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | | 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
* Re-apply "[libcxx] implement <simd> ABI for Clang/GCC vector extension, ↵Tim Shen2018-07-301-5/+33
| | | | | | | | constructors, copy_from and copy_to." ...with proper guarding #ifdefs for unsupported C++11. llvm-svn: 338318
* Revert "[libcxx] implement <simd> ABI for Clang/GCC vector extension, ↵Tim Shen2018-07-301-33/+5
| | | | | | | | constructors, copy_from and copy_to." This reverts commit r338309. llvm-svn: 338316
* [libcxx] implement <simd> ABI for Clang/GCC vector extension, constructors, ↵Tim Shen2018-07-301-5/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | copy_from and copy_to. Summary: This patch adds a new macro _LIBCPP_HAS_NO_VECTOR_EXTENSION for detecting whether a vector extension (\_\_attribute\_\_((vector_size(num_bytes)))) is available. On the top of that, this patch implements the following API: * all constructors * operator[] * copy_from * copy_to It also defines simd_abi::native to use vector extension, if available. In GCC and Clang, certain values with vector extension are passed by registers, instead of memory. Based on D41148. Reviewers: mclow.lists, EricWF Subscribers: cfe-commits, MaskRay, lichray, sanjoy Differential Revision: https://reviews.llvm.org/D41376 llvm-svn: 338309
* Re-commit r330627 "[libcxx] implement <experimental/simd> declarations based ↵Tim Shen2018-04-231-0/+58
| | | | | | | | | | | | on P0214R7." There are 3 changes: * Renamed genertor.pass.cpp to generator.pass.cpp * Removed nothing_to_do.pass.cpp * Mark GCC 4.9 as UNSUPPORTED for the test files that have negative narrowing conversion SFINAE test (see GCC PR63723). llvm-svn: 330655
* Revert "[libcxx] implement <experimental/simd> declarations based on P0214R7."Tim Shen2018-04-231-55/+0
| | | | | | | | This reverts commit r330627. This causes several bots to freak out. llvm-svn: 330636
* [libcxx] implement <experimental/simd> declarations based on P0214R7.Tim Shen2018-04-231-0/+55
Summary: The patch includes all declarations, and also implements the following features: * ABI. * narrowing-conversion related SFIANE, including simd<> ctors and (static_)simd_cast. Reviewers: mclow.lists, EricWF Subscribers: lichray, sanjoy, MaskRay, cfe-commits Differential Revision: https://reviews.llvm.org/D41148 llvm-svn: 330627
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