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* [NFC] Strip trailing whitespace from libc++Louis Dionne2019-10-231-2/+2
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* Implement LWG 2960: nonesuch is insufficiently uselessMarshall Clow2019-04-302-0/+61
| | | | llvm-svn: 359526
* Support tests in freestandingJF Bastien2019-02-045-5/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Carruth2019-01-195-20/+15
| | | | | | | | | | | | | | | | | | 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
* Remove more of the std::experimental bits that are now in std::. All the _v ↵Marshall Clow2018-02-069-1091/+0
| | | | | | type aliases, conjunction/disjunction, apply, etc. See https://libcxx.llvm.org/TS_deprecation.html llvm-svn: 324423
* Fix XFAIL to reflect recent fixes in GCCEric Fiselier2017-05-111-1/+2
| | | | llvm-svn: 302841
* Fix GCC 7 test failures.Eric Fiselier2017-05-091-0/+5
| | | | | | | | | | | This patch fixes the test failures and unexpected passes that occur when testing against GCC 7. Specifically: * don't mark __gcd as always inline because it's a recursive function. GCC diagnoses this. * don't XFAIL the aligned allocation tests. GCC 7 supports them but not the -faligned-allocation option. * Work around gcc.gnu.org/PR78489 in variants constructors. llvm-svn: 302488
* [libcxx] [test] Strip trailing whitespace.Stephan T. Lavavej2017-01-045-5/+5
| | | | | | Fixes D27786. llvm-svn: 290922
* Implement conjuntion/disjuntion/negation for LFTS v2. Same code and tests ↵Marshall Clow2016-11-263-0/+177
| | | | | | for the ones in std:: llvm-svn: 287988
* Implement the 'detection idiom' from LFTS v2Marshall Clow2016-11-265-0/+224
| | | | llvm-svn: 287981
* Move more _LIBCPP_VERSION tests to test/libcxx.Eric Fiselier2016-06-221-20/+0
| | | | llvm-svn: 273365
* [libcxx] Improve tests to use the UNSUPPORTED lit directiveAsiri Rathnayake2016-05-286-29/+12
| | | | | | | | | | | | | | | | | | | Quite a few libcxx tests seem to follow the format: #if _LIBCPP_STD_VER > X // Do test. #else // Empty test. #endif We should instead use the UNSUPPORTED lit directive to exclude the test on earlier C++ standards. This gives us a more accurate number of test passes for those standards and avoids unnecessary conflicts with other lit directives on the same tests. Reviewers: bcraig, ericwf, mclow.lists Differential revision: http://reviews.llvm.org/D20730 llvm-svn: 271108
* Move test into test/std subdirectory.Eric Fiselier2014-12-207-0/+945
llvm-svn: 224658
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