Commit Graph

7806 Commits

Author SHA1 Message Date
Mark de Wever 92b758cf3d [libcxx][doc] Update the build documentation.
These are the hunks of
  D106770 [libc++][doc] Update the release notes
that are relevant for main.
2021-07-29 07:57:10 +02:00
Arthur O'Dwyer d4840175c9 [libc++] Remove excess whitespace in synopsis comment. NFCI. 2021-07-29 01:34:31 -04:00
Ruslan Arutyunyan 61c35fb0c2 [libc++][modularisation] Split <compare> into internal headers.
Differential Revision: https://reviews.llvm.org/D106107
2021-07-28 22:28:26 -04:00
Arthur O'Dwyer 20c6ddc5bc [libc++] Remove unused variables in generate_private_header_tests.py. NFCI. 2021-07-28 22:28:25 -04:00
Jason Liu 363a8a0598 [libc++] money_get::do_get() set failbit and eofbit if iterator begin equals end
Summary:
Currently, if we pass in the same iterator for begin and end,
the long double version of do_get would throw a runtime error.

However, according to standard (https://eel.is/c++draft/locale.money.get#virtuals-1),
we should set the failbit and eofbit when no more characters are available.

Differential Revision: https://reviews.llvm.org/D100510
2021-07-28 22:23:09 -04:00
Arthur O'Dwyer 3894a8a476 [libc++] Implement the resolutions of LWG3506 and LWG3522.
Implement the changes in all language modes.

LWG3506 "Missing allocator-extended constructors for priority_queue"
makes the following changes:
- New allocator-extended constructors for priority_queue.
- New deduction guides targeting those constructors.

LWG3522: "Missing requirement on InputIterator template parameter
for priority_queue constructors". The iterator parameter should be
constrained to actually be an iterator type. `priority_queue{1,2}`
should be SFINAE-friendly ill-formed.

Also, do a drive-by fix in the allocator-extended move constructor:
there's no need to do a `make_heap` after moving from `__q.c` into
our own `c`, because that container was already heapified when it
was part of `__q`. [priqueue.cons.alloc] actually specifies the
behavior and does *not* mention calling `make_heap`. I think this
was just a copy-paste thinko. It dates back to the initial import
of libc++.

Differential Revision: https://reviews.llvm.org/D106824
Differential Revision: https://reviews.llvm.org/D106827
2021-07-28 21:15:20 -04:00
Louis Dionne 6929bd6d00 [libc++] Add UNSUPPORTED for clang-14 since the underlying bug hasn't been fixed yet
This started breaking in the CI because we bumped the Clang version to 14,
which requires adjusting the markup in the test suite. I think it's actually
nice the we need to do that and that it doesn't happen automatically, since
it serves as a reminder that this is broken in Clang.
2021-07-28 16:41:22 -04:00
zoecarver 0f4b41e038 [libcxx][ranges] Add ranges::take_view.
Differential Revision: https://reviews.llvm.org/D106507
2021-07-28 12:14:21 -07:00
Mark de Wever 4e65688571 [libc++][nfc] Improve error diagnostics.
The error message for disabled filesystem and locale support is now done
in the same fashion as ranges and format in D106763.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D106935
2021-07-28 17:57:23 +02:00
David Spickett 4fd42e2e80 [libcxx] Bump __libcpp_version to 14 after branch
This was missed in 08c766a731
and caused test failures in the buildkite bots:
libcpp_version.pass.cpp:22:1:
error: static_assert failed due to requirement '14000 == libcpp_version'
"_LIBCPP_VERSION doesn't match __libcpp_version
2021-07-28 11:07:06 +00:00
Tom Stellard 08c766a731 Bump the trunk major version to 14
and clear the release notes.
2021-07-27 21:58:25 -07:00
Louis Dionne 2e4755ff60 [libc++] Fix a few warnings in system headers with GCC
This isn't fixing all of them, but at least it's making some progress.

Differential Revision: https://reviews.llvm.org/D106283
2021-07-27 20:09:01 -04:00
zoecarver 8a48e6dda9 [libcxx][ranges] Add `counted_iterator`.
Differential Revision: https://reviews.llvm.org/D106205
2021-07-27 15:50:11 -07:00
zoecarver b187e0389d [libcxx][nfc] Delete `cpp20_input_iterator`'s default constructor.
This will make it conform only to the minimum requirements for an `input_iterator`.
2021-07-27 15:50:11 -07:00
Mark de Wever 71909de374 [libc++] Disable incomplete library features.
Adds a new CMake option to disable the usage of incomplete headers.
These incomplete headers are not guaranteed to be ABI stable. This
option is intended to be used by vendors so they can avoid their users
from code that's not ready for production usage.

The option is enabled by default.

Differential Revision: https://reviews.llvm.org/D106763
2021-07-27 22:37:35 +02:00
Nancy Wang 3dc39f2829 [SystemZ][z/OS][libcxx]: Disable align_val_t test cases on z/OS
align_val_t is not supported on z/OS, it causes failure on z/OS. similar to https://reviews.llvm.org/rGd0fe294729a2ac45625ed45a5619c8405a14db49 , we will need to disable those test cases on z/OS platform.

Differential Revision: https://reviews.llvm.org/D106810
2021-07-27 15:22:30 -04:00
Louis Dionne 21c24ae902 [runtimes] Always build libc++, libc++abi and libunwind with -fPIC
Building the libraries with -fPIC ensures that we can link an executable
against the static libraries with -fPIE. Furthermore, there is apparently
basically no downside to building the libraries with position independent
code, since modern toolchains are sufficiently clever.

This commit enforces that we always build the runtime libraries with -fPIC.
This is another take on D104327, which instead makes the decision of whether
to build with -fPIC or not to the build script that drives the runtimes'
build.

Fixes http://llvm.org/PR43604.

Differential Revision: https://reviews.llvm.org/D104328
2021-07-27 14:19:05 -04:00
Louis Dionne 45478619e3 [libc++] CI: Run -std=c++03 on Clang ToT
Differential Revision: https://reviews.llvm.org/D106104
2021-07-27 14:13:28 -04:00
Marek Kurdej 775caa58fc [libc++] [c++2b] [P2166] Prohibit string and string_view construction from nullptr.
* https://wg21.link/P2166

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D106801
2021-07-27 16:20:21 +02:00
Louis Dionne 496a3815f4 [libc++] NFC: Try to trigger Docker image rebuild on CI nodes 2021-07-27 10:02:00 -04:00
Christopher Di Bella 9563f3b571 [libcxx][NFC] adjusts 41b17c44 so it meets requested feedback
Feedback requested in D106735 applied in Diff 3 seem to have
reverted in Diff 4. This patch fixes that up.

Differential Revision: https://reviews.llvm.org/D106829
2021-07-27 01:11:04 +00:00
Arthur O'Dwyer 1e1b5706c3 [libc++] Fix spacing in <vector>. NFCI.
Thanks to gAlfonso-bit for the patch!

Differential Revision: https://reviews.llvm.org/D106691
2021-07-26 18:23:50 -04:00
Arthur O'Dwyer 41b17c444d [libc++] Fix signed overflow inside ranges::advance.
See LWG reflector thread of 2021-07-23 titled
'Question on ranges::advance and "past-the-sentinel iterators"'.
Test case heavily based on one graciously provided by Casey Carter.

Differential Revision: https://reviews.llvm.org/D106735
2021-07-26 16:41:21 -04:00
Arthur O'Dwyer 25666a74c5 [libc++] Remove "pass by const value" in <random>. NFCI. 2021-07-26 16:41:20 -04:00
Louis Dionne 7b28c5d376 [libc++] Implement the output_iterator and output_range concepts
Differential Revision: https://reviews.llvm.org/D106704
2021-07-26 15:05:17 -04:00
Louis Dionne 069428b6f7 [libc++] Set the target triple by default in the standalone build
Even though the standalone build is deprecated, some people are still
relying on it (including libc++ itself for some configurations). Setting
the target triple will ensure that the build and the test suite behaves
consistently in the standalone and normal builds.

Differential Revision: https://reviews.llvm.org/D106800
2021-07-26 15:04:45 -04:00
Louis Dionne fbaf7f0bc7 [libc++] Add range_size_t
Differential Revision: https://reviews.llvm.org/D106708
2021-07-26 12:19:26 -04:00
Louis Dionne 3ca6dea05d [libc++][NFC] Change a few instances of > > to >> in C++20 code 2021-07-26 11:22:47 -04:00
Mark de Wever 1139fd4270 [libc++][ci] Detect not committed generated files.
The Generated output CI job only tests for modified files. This job
should also fail the generated output contains new files.

It would be possible to test modified and untracked files in one
execution of `git ls-files`. However the diff is stored as an artifact
so the execution of `git diff` would still be required.

Discussion: Would it be better to do `git ls-files -om` and remove the
excution of
`! grep -q '^--- a' ${BUILD_DIR}/generated_output.patch || false` ?
(Obviously then the name `generated_output.untracked` should change to
something like `generated_output.status`)

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D106534
2021-07-26 16:41:57 +02:00
Mark de Wever d990852327 [libcxx][nfc] Cleanup libc++ specific tests.
Move the tests to libcxx so they no longer need `REQUIRES: libc++`.
Verify tests don't need `REQUIRES: libc++`.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D106673
2021-07-23 18:42:23 +02:00
zoecarver 1e4ba7eba6 [libcxx][nfc] Global `constexpr friend` -> `friend constexpr`. 2021-07-23 09:08:50 -07:00
zoecarver e5d8b93e5a [libcxx][ranges] Add `ranges::common_view`.
Differential Revision: https://reviews.llvm.org/D105753
2021-07-23 09:08:49 -07:00
Louis Dionne f86570cd52 [libc++] Avoid triggering warnings for implicit conversion
This started as fixing a typo in a ADDITIONAL_COMPILE_FLAGS directive
which turned out to uncover a few places where we warned about signedness
changes.

As a fly-by fix, this updates the various __advance overloads
for style consistency.

Differential Revision: https://reviews.llvm.org/D106372
2021-07-23 10:53:10 -04:00
Mark de Wever 678601ecb5 [libc++][doc] Update the LWG issues.
Updates the status pages with the LWG issues accepted in the Standard
during the June 2021 plenary session. The LWG papers for this meeting
have been added in D105103.

Differential Revision: https://reviews.llvm.org/D106529
2021-07-23 10:08:44 +02:00
Christopher Di Bella 0cf65382ad [libcxx][modularisation] properly modularises advance, next, and prev
`__function_like` wasn't being exported, so certain properties of the
`ranges` functions weren't being propagated in modules land.

Differential Revision: https://reviews.llvm.org/D105078
2021-07-22 23:30:02 +00:00
Louis Dionne 3959c95deb [libc++] Add helper type non-propagating-cache
Differential Revision: https://reviews.llvm.org/D102121
2021-07-22 14:30:16 -04:00
zoecarver 6f5064cd0c [libc++][docs] Take lock for range.single.view.
Mark this item as in progress and assigned to me.
2021-07-22 11:15:24 -07:00
Christopher Di Bella 74fd3cb8cd [libcxx][ranges] implements dangling, borrowed_iterator_t, borrowed_subrange_t
* Implements part of P0896 'The One Ranges Proposal'
* Implements http://wg21.link/range.dangling

Reviewed By: zoecarver

Differential Revision: https://reviews.llvm.org/D105205
2021-07-21 21:34:13 +00:00
Nancy Wang 6ba493d81b [SystemZ][z/OS][libcxx]: add the missing comment for patch D106153 and D106151
This patch is to add the missing comments in https://reviews.llvm.org/D106153 and https://reviews.llvm.org/D106151 to address comments.

Differential Revision: https://reviews.llvm.org/D106404
2021-07-21 13:49:04 -04:00
Marek Kurdej 1daf0e2256 [libc++] Add `__libcpp_copysign` conditionally constexpr overloads.
This is a spin-off from D79555 review, that with this patch will be able to use `__libcpp_copysign` instead of adhoc `__copysign_constexpr` helper.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D106364
2021-07-21 16:57:43 +02:00
Mark de Wever 9226e6f7d2 [libc++][nfc] Adds a missing generated file.
The file was created by libcxx/utils/generate_private_header_tests.py.
2021-07-21 08:06:03 +02:00
Mark de Wever b49961987f [lbc++][nfc] Use _LIBCPP_HIDE_FROM_ABI.
This replaces _LIBCPP_INLINE_VISIBILITY with _LIBCPP_HIDE_FROM_ABI. It's
not intended to do for other parts of libc++. This change makes it easy
to search and replace all occurrences of the patches in review.
2021-07-21 08:02:15 +02:00
Mark de Wever a08554bcdd [libc++][doc] Fixes a broken link. 2021-07-20 19:49:45 +02:00
Nancy Wang 7704fedfff [SystemZ][z/OS][libcxx]: fix libcxx test cases related to codecvt class UTF8
This PR to fix a few test cases related to class https://en.cppreference.com/w/cpp/locale/codecvt , as mentioned in document, class is converting UTF16 and UTF8 or UTF32 and UTF8, character type is deprecated in c++20 and it needs explicitly specify it is UTF8 string literal. Current test cases assume 1 byte character is ASCII or Unicode character which is not true on z/OS platform. UTF8/16/32 information can be found in https://naveenr.net/unicode-character-set-and-utf-8-utf-16-utf-32-encoding/ and EBCDIC and ASCII character value can be found in http://www.simotime.com/asc2ebc1.htm

Differential Revision: https://reviews.llvm.org/D106153
2021-07-20 13:02:59 -04:00
Nancy Wang f3cb8d6e25 [SystemZ][z/OS][libcxx]: fix libcxx test cases related to codecvt class UTF16/32
This PR is to fix a few UTF16 and UTF32 related test cases that are testing member functions for https://en.cppreference.com/w/cpp/locale/codecvt class , functions are converting from UTF16, UTF32 to UTF8 or vise visa. Test cases need to explicitly specify it is UNICODE character for UTF16/32 type in order to be valid tests to match type in documentation. it assumes it will be ASCII or UTF8 type for 1 byte character ( value range from 1 to 127 ), which is not true on z/OS in EBCDIC mode. For information related to UTF16/32 , please see https://naveenr.net/unicode-character-set-and-utf-8-utf-16-utf-32-encoding/ , and EBCDIC/ASCII character value can be found in http://www.simotime.com/asc2ebc1.htm

Differential Revision: https://reviews.llvm.org/D106151
2021-07-20 12:57:32 -04:00
zoecarver 1a29403d2f [libcxx][ranges] Add common_iterator.
Differential Revision: https://reviews.llvm.org/D103335
2021-07-20 08:12:44 -07:00
Louis Dionne ec2bdf86f0 [libc++][NFC] Add missing commits to the ABI changelog 2021-07-20 09:19:52 -04:00
Louis Dionne 15bf66d2f8 [libc++] Tidy-up instances of __STDCPP_DEFAULT_NEW_ALIGNMENT__ in the tests
See https://reviews.llvm.org/D105905 for context.

Differential Revision: https://reviews.llvm.org/D106182
2021-07-19 19:37:07 -04:00
Louis Dionne d153e7d0a5 [libc++] Add a bunch of missing _LIBCPP_HIDE_FROM_ABI in <ranges>
We've been forgetting to add those to most of the <ranges> review.
To avoid forgetting in the future, I added an item in the pre-commit
checklist.

Differential Revision: https://reviews.llvm.org/D106287
2021-07-19 19:33:28 -04:00
Louis Dionne 9333d34b8a [libc++] Disable #pragma system_header in the new testing configuration
The new testing configuration did not turn off #pragma system_header,
which means we were not seeing warnings in system headers.

Differential Revision: https://reviews.llvm.org/D106187
2021-07-19 14:38:24 -04:00