Commit Graph

75 Commits

Author SHA1 Message Date
Nikolas Klauser 1d50cf98b5 [libc++] IWYU in <filesystem> tests
Add headers in `<filesystem>` tests that were transitively included
through `<filesystem>`

Reviewed as part of D116146
2021-12-23 12:03:36 +01:00
Nikolas Klauser fcc0964ed4 Revert "[libc++] Remove unused headers from <filesystem>"
This reverts commit 352945dd36.
2021-12-23 11:55:38 +01:00
Nikolas Klauser 352945dd36 [libc++] Remove unused headers from <filesystem>
Remove unused headers from `<filesystem>`

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D116146
2021-12-23 02:07:47 +01:00
David Tenty 28b3cac7cf [libc++][CI] Add AIX pipeline config
This changes adds the pipeline config for both 32-bit and 64-bit AIX targets. As well, we add a lit feature `LIBCXX-AIX-FIXME` which is used to mark the failing tests which remain to be investigated on AIX, so that the CI produces a clean build.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D111359
2021-11-08 10:30:27 -05:00
Louis Dionne f4c1258d56 [libc++] Add an option to disable wide character support in libc++
Some embedded platforms do not wish to support the C library functionality
for handling wchar_t because they have no use for it. It makes sense for
libc++ to work properly on those platforms, so this commit adds a carve-out
of functionality for wchar_t.

Unfortunately, unlike some other carve-outs (e.g. random device), this
patch touches several parts of the library. However, despite the wide
impact of this patch, I still think it is important to support this
configuration since it makes it much simpler to port libc++ to some
embedded platforms.

Differential Revision: https://reviews.llvm.org/D111265
2021-10-12 06:08:23 -04:00
Arthur O'Dwyer d4b59a05fc [libc++] Remove "// -*- C++ -*-" comments from all .cpp files. NFCI.
Even if these comments have a benefit in .h files (for editors that
care about language but can't be configured to treat .h as C++ code),
they certainly have no benefit for files with the .cpp extension.

Discussed in D110794.
2021-10-01 12:06:59 -04:00
Louis Dionne ef2cdfe393 [libc++][NFC] Remove uses of 'using namespace std;' in the test suite
Differential Revision: https://reviews.llvm.org/D109120
2021-09-03 13:15:10 -04:00
Louis Dionne 9d7c420ad1 [libc++][NFC] Replace uses of stdr:: by just std::ranges::
Differential Revision: https://reviews.llvm.org/D109121
2021-09-02 13:02:12 -04:00
Louis Dionne 6900df37d2 [libc++] Remove Lit annotations for unsupported GCC versions from the test suite
Since we officially don't support several older compilers now, we can
drop a lot of the markup in the test suite. This helps keep the test
suite simple and makes sure that UNSUPPORTED annotations don't rot.

This is the first patch of a series that will remove annotations for
compilers that are now unsupported.

Differential Revision: https://reviews.llvm.org/D107787
2021-08-12 13:30:47 -04:00
Martin Storsjö 128b2136ec [libcxx] [test] Generalize defines for skipping allocation checks
This allows waiving the right amount of asserts on Windows and zOS.
This should supersede D107124 and D105910.

Differential Revision: https://reviews.llvm.org/D107755
2021-08-10 11:05:00 +03:00
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
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
Louis Dionne 3001b48d76 [libc++] Implement views::all_t and ranges::viewable_range
Differential Revision: https://reviews.llvm.org/D105816
2021-07-15 07:54:33 -04:00
zoecarver c40b02608e [libcxx][ranges] Implement `ranges::borrowed_range`.
Differential Revision: https://reviews.llvm.org/D102426
2021-05-20 11:51:44 -07:00
Christopher Di Bella d8fad66149 [libcxx][ranges] adds concept `sized_range` and cleans up `ranges::size`
* adds `sized_range` and conformance tests
* moves `disable_sized_range` into namespace `std::ranges`
* removes explicit type parameter

Implements part of P0896 'The One Ranges Proposal'.

Differential Revision: https://reviews.llvm.org/D102434
2021-05-19 18:16:45 +00:00
Martin Storsjö c12c8124e1 [libcxx] [test] Change the generic_string_alloc test to test conversions to all char types
On windows, the native path char type is wchar_t - therefore, this test
didn't actually do the conversion that the test was supposed to exercise.

The charset conversions on windows do cause extra allocations outside of
the provided allocator though, so that bit of the test has to be waived
now that the test actually does something. (Other tests have similar
TEST_NOT_WIN32() for allocation checks for charset conversions.)

Also fix a typo, and amend the path.native.obs/string_alloc test to
test char8_t, too.

Differential Revision: https://reviews.llvm.org/D102360
2021-05-14 11:56:48 +03:00
Arthur O'Dwyer 12dd9cdf1a [libc++] [LIBCXX-DEBUG-FIXME] Iterating a string::iterator "off the end" is UB.
The range of char pointers [data, data+size] is a valid closed range,
but the range [begin, end) is valid only half-open.

Differential Revision: https://reviews.llvm.org/D101676
2021-05-05 16:21:09 -04:00
zoecarver 6ffc41b014 [libcxx][ranges] Add `random_access_{iterator,range}`.
Differential Revision: https://reviews.llvm.org/D101316
2021-05-04 21:42:55 -07:00
Louis Dionne 2021d272ad [libc++] Implement ranges::view
Differential Revision: https://reviews.llvm.org/D101547
2021-05-04 11:05:58 -04:00
Christopher Di Bella 9c5d86aac5 [libcxx][iterator][ranges] adds `bidirectional_iterator` and `bidirectional_range`
Implements parts of:
    * P0896R4 The One Ranges Proposal`

Depends on D100275.

Differential Revision: https://reviews.llvm.org/D100278
2021-05-03 21:21:33 +00:00
Christopher Di Bella fa3e26266c [libcxx][iterator][ranges] adds `forward_iterator` and `forward_range`
Implements parts of:
    * P0896R4 The One Ranges Proposal`

Depends on D100271.

Differential Revision: https://reviews.llvm.org/D100275
2021-05-03 20:46:18 +00:00
Christopher Di Bella 773ae44124 [libcxx][nfc] prefixes test type `input_iterator` with `cpp17_`
C++20 revised the definition of what it means to be an iterator. While
all _Cpp17InputIterators_ satisfy `std::input_iterator`, the reverse
isn't true. D100271 introduces a new test adaptor to accommodate this
new definition (`cpp20_input_iterator`).

In order to help readers immediately distinguish which input iterator
adaptor is _Cpp17InputIterator_, the current `input_iterator` adaptor
has been prefixed with `cpp17_`.

Differential Revision: https://reviews.llvm.org/D101242
2021-05-02 05:02:59 +00:00
Martin Storsjö 8d0dfa0d57 [libcxx] Reenable ranges for clang-cl
This reverts a224bf8ec4 and fixes the
underlying issue.

The underlying issue is simply that MSVC headers contains a define
like "#define __in", where __in is one macro in the MSVC Source
Code Annotation Language, defined in sal.h

Just use a different variable name than "__in"
__indirectly_readable_impl, and add "__in" to nasty_macros.h just
like the existing __out. (Also adding a couple more potentially
conflicting ones.)

Differential Revision: https://reviews.llvm.org/D101613
2021-05-01 11:15:38 +03:00
Martin Storsjö 0e8f5e4a68 [libcxx] [test] Skip alloc counter checks for operations within the libc++ DLL
If libc++ is built as a DLL, calls to operator new within the DLL aren't
overridden if a user provides their own operator in calling code.
Therefore, the alloc counter doesn't pick up on allocations done within
std::string, so skip that check if running on windows. (Technically,
we could keep the checks if running on windows when not built as a DLL,
but trying to keep the conditionals simple.)

Differential Revision: https://reviews.llvm.org/D100219
2021-05-01 09:26:23 +03:00
Christopher Di Bella c05d1eed35 [libcxx][iterator][ranges] adds `input_iterator` and `input_range`
Implements parts of:
    * P0896R4 The One Ranges Proposal`

Depends on D100269.

Differential Revision: https://reviews.llvm.org/D100271
2021-04-30 22:49:06 +00:00
Arthur O'Dwyer 86d1f590c2 [libc++] [test] Add a debug-mode CI.
To run llvm-lit manually from the command line:

    ./bin/llvm-lit -sv --param std=c++2b --param cxx_under_test=`pwd`/bin/clang \
        --param debug_level=1 ../libcxx/test/

Tests that currently fail with `debug_level=1` are marked `LIBCXX-DEBUG-FIXME`,
but my intent is to deal with all of them and leave no such annotations in
the codebase within the next couple weeks. (I have patches for all of them
in my local checkout.)

Differential Revision: https://reviews.llvm.org/D100866
2021-04-30 18:08:09 -04:00
Christopher Di Bella 7c17731596 [libcxx][ranges] adds `ranges::range`, `ranges::common_range`, and range aliases
* `std::ranges::range`
* `std::ranges::sentinel_t`
* `std::ranges::range_difference_t`
* `std::ranges::range_value_t`
* `std::ranges::range_reference_t`
* `std::ranges::range_rvalue_reference_t`
* `std::ranges::common_range`

`range_size_t` depends on `sized_range` and will be added alongside it.

Implements parts of:
    * P0896R4 The One Ranges Proposal`

Depends on D100255.

Differential Revision: https://reviews.llvm.org/D100269
2021-04-30 16:56:42 +00:00
Christopher Di Bella 5a3309f825 [libcxx][ranges] adds `range` access CPOs
* `std::ranges::begin`
* `std::ranges::cbegin`
* `std::ranges::end`
* `std::ranges::cend`
* `std::ranges::iterator` (required for `end`)

Implements parts of:
    * P0896R4 The One Ranges Proposal`

Co-author: @zoecarver

Depends on D90999, D100160.

Differential Revision: https://reviews.llvm.org/D100255
2021-04-30 16:56:42 +00:00
Martin Storsjö 4f7fa06a66 [libcxx] [test] Add XFAIL LIBCXX-WINDOWS-FIXME in 124 tests that fail in the future CI configuration
This makes no attempt yet to look into the why/what for each of them,
but makes the CI configuration useful for tracking further regressions.
After looking into each case, they can either be fixed, or converted
into UNSUPPORTED: windows or XFAIL: windows, once the cause is known
and explained.

A number of the filesystem cases can be fixed by patches that are
currently in review.

Differential Revision: https://reviews.llvm.org/D99095
2021-03-22 23:41:11 +02:00
Martin Storsjö f5f3a59837 [libcxx] [test] Disable some allocation checks in class.path tests on windows
On windows, the path internal representation is wchar_t, and
input/output often goes through utf8 inbetween, which causes extra
allocations.

MS STL also fails a number of strict allocation checks, so this
shouldn't be a standards compliance issue.

Differential Revision: https://reviews.llvm.org/D98398
2021-03-15 18:52:48 +02:00
Martin Storsjö 49173ca4db [libcxx] Avoid intermediate string objects for substrings in windows operator/=
Check that appends with a path object doesn't do allocations, even
on windows.

Suggested by Marek in D98398. The patch might apply without D98398
(depending on how much of the diff context has to match), but doesn't
make much sense until after that patch has landed.

Differential Revision: https://reviews.llvm.org/D98412
2021-03-11 19:34:59 +02:00
Martin Storsjö cb2648e6f0 [libcxx] [test] Use a string_view of the native path type in the concat test
This makes sure that no extra allocations happen on windows, fixing
earlier errors in the DisableAllocationGuard (in the second case that
is modified).

This is split out from D98398.

Differential Revision: https://reviews.llvm.org/D98406
2021-03-11 19:34:58 +02:00
Martin Storsjö 4d571cf4e9 [libcxx] [test] Clarify and improve consistency in lexically_relative_and_proximate.pass.cpp. NFC.
Use "expect" instead of "output" for generating "proximate_expected",
pass the arguments to PathEq in the same order as above, rename the
"proximate_expected" variable to be consistent with the naming of the
earlier "expect", use .empty() instead of .native().empty().

Differential Revision: https://reviews.llvm.org/D98127
2021-03-07 23:15:05 +02:00
Martin Storsjö ab67fd39fc [libcxx] [test] Fix path.modifiers remove_filename and replace_filename for windows
Also fix the synopsis in the replace_filename test, while touching
that file.

Differential Revision: https://reviews.llvm.org/D98108
2021-03-07 10:37:13 +02:00
Martin Storsjö d601edf0b0 [libcxx] [test] Fix lexically_normal and lexically_relative_and_proximate for windows
Convert the expected result path to preferred separators, add exceptions
to the test results where needed (due to some cases being interpreted
as a root name).

Differential Revision: https://reviews.llvm.org/D98106
2021-03-06 22:42:38 +02:00
Martin Storsjö 15fdd536f9 [libcxx] [test] Fix path.itr/iterator.pass.cpp for windows
Differential Revision: https://reviews.llvm.org/D98107
2021-03-06 19:27:14 +02:00
Martin Storsjö 1adaf48d23 [libcxx] [test] Fix path.decompose for windows
Add ifdefs to the test reference tables for cases where paths are
interpreted differently (paths that contain a root name).

Fix test assumptions regarding has_root_name() and is_absolute() and
add logic to verify the results of is_absolute() for the test cases in
the table.

Also add a testcase for the path "//net/", which seemed like an
omission.

Differential Revision: https://reviews.llvm.org/D89943
2021-03-05 19:37:31 +02:00
Martin Storsjö 53d7c63657 [libcxx] [test] Use separate references for windows in the path.append test
Differential Revision: https://reviews.llvm.org/D89945
2021-03-04 23:21:02 +02:00
Martin Storsjö 74c883f7e5 [libcxx] [test] Use the native path types in path.compare
This makes sure that it actually tests the right compare() overloads
in windows configurations.

This also fixes the allocation guards that enforce no allocations
while running the compare() functions.

Differential Revision: https://reviews.llvm.org/D97551
2021-03-01 21:01:46 +02:00
Martin Storsjö 26005c788b [libcxx] Make path::format a non-class enum
The spec doesn't declare it as an enum class, and being declared
as an enum class breaks referring to the values as e.g.
path::auto_format.

Differential Revision: https://reviews.llvm.org/D97084
2021-02-21 00:25:54 +02:00
Martin Storsjö f4f5fb9151 [libcxx] Make generic_*string return paths with forward slashes on windows
This matches what MS STL returns; in std::filesystem, forward slashes
are considered generic dir separators that are valid on all platforms.

Differential Revision: https://reviews.llvm.org/D91181
2021-02-19 21:49:51 +02:00
Martin Storsjö 78d693faec [libcxx] Implement append and operator/ properly for windows
The root_path function has to be changed to return the parsed bit
as-is; otherwise a path like "//net" gets a root path of "//net/", as
the root name, "//net", gets the root directory (an empty string) appended,
forming "//net/". (The same doesn't happen for the root dir "c:" though.)

Differential Revision: https://reviews.llvm.org/D91178
2021-02-18 09:03:53 +02:00
Louis Dionne 1700ea7302 [libc++] Remove the ability to use braced-init for filesystem paths
According to my reading of http://eel.is/c++draft/filesystems#fs.class.path,
the Standard doesn't actually mention that this should work. Since other
implementations don't allow it, allowing it in libc++ is just setting a
portability trap.

Supersedes https://reviews.llvm.org/D89865.

Differential Revision: https://reviews.llvm.org/D95975
2021-02-04 11:49:00 -05:00
Marek Kurdej 5ad6ed5298 [libc++] [test] Disable parts of path.factory.pass.cpp as requiring localization enabled.
It was added in commit 6be11e35d5, "[libcxx] Implement c++2a char8_t input/output of std::filesystem::path".
2020-12-04 20:04:35 +01:00
Marek Kurdej b04a5e752f [libc++] [test] Mark path.charconv.pass.cpp as requiring localization enabled.
It was added in commit 0b71bf7939, "[libcxx] [test] Add a test for conversions between wchar_t, utf8, char16_t, char32_t and windows native narrow code pages"
2020-12-04 19:58:48 +01:00
Martin Storsjö 0b71bf7939 [libcxx] [test] Add a test for conversions between wchar_t, utf8, char16_t, char32_t and windows native narrow code pages
Differential Revision: https://reviews.llvm.org/D91133
2020-12-04 11:37:05 +02:00
Martin Storsjö 6be11e35d5 [libcxx] Implement c++2a char8_t input/output of std::filesystem::path
This implements the std::filesystem parts of P0482 (which is already
marked as in progress), and applies the actions that are suggested
in P1423.

Differential Revision: https://reviews.llvm.org/D90222
2020-12-04 11:37:05 +02:00
Martin Storsjö 22e5ee0eef [libcxx] [test] Avoid an unused variable in non-libcpp cases in path.append
Differential Revision: https://reviews.llvm.org/D89947
2020-11-03 09:32:52 +02:00
Louis Dionne 88ffc72717 [libc++] Add a libc++ configuration that does not support localization
When porting libc++ to embedded systems, it can be useful to drop support
for localization, which these systems don't implement or care about.

Differential Revision: https://reviews.llvm.org/D90072
2020-10-27 14:56:30 -04:00
Louis Dionne e557b6a66d [libc++] Remove uses of verbose_assert.h in Filesystem tests
For a modest loss of debugability in the tests, this allows more tests
to run on platforms that do not have support for <iostream>.
2020-10-20 16:57:00 -04:00