Commit Graph

3869 Commits

Author SHA1 Message Date
Christopher Di Bella 580416d573 [libcxx] updates the feature-test macro generator
D97015 didn't correctly update `generate_feature_test_macro_components.py`.

Reviewed By: ldionne, Quuxplusone, #libc, Mordante

Differential Revision: https://reviews.llvm.org/D97904
2021-03-18 17:08:10 +00:00
Arthur O'Dwyer 0aa637b203 [libc++] Improve src/filesystem's formatting of paths.
This is my attempt to merge D98077 (bugfix the format strings for
Windows paths, which use wchar_t not char)
and D96986 (replace C++ variadic templates with C-style varargs so that
`__attribute__((format(printf)))` can be applied, for better safety)
and D98065 (remove an unused function overload).

The one intentional functional change here is in `__create_what`.
It now prints path1 and path2 in square-brackets _and_ double-quotes,
rather than just square-brackets. Prior to this patch, it would
print either path double-quoted if-and-only-if it was the empty
string. Now the double-quotes are always present. I doubt anybody's
code is relying on the current format, right?

Differential Revision: https://reviews.llvm.org/D98097
2021-03-16 15:00:36 -04:00
Tomas Matheson 64595f9b84 [libcxx][type_traits] add tests for is_signed and is_unsigned
In previous versions of clang, __is_signed and __is_unsigned builtins did not
correspond to is_signed and is_unsigned behaviour for enums.  The builtins were
fixed in D67897 and D98104.

* Disable the fast path of is_unsigned for clang versions < 13

* Add more tests for is_signed, is_unsigned and is_arithmetic

Differential Revision: https://reviews.llvm.org/D97283
2021-03-16 16:36:10 +00:00
Martin Storsjö b5e228fc00 [libcxx] [test] Fix the temp_directory_path test for windows
Check a different set of env vars, don't check the exact value
of the fallback path. (GetTempPath falls back to returning the Windows
folder if nothing better is available in env vars.)

The test still fails one check on windows (due to relying on perms::none),
which will be addressed separately.

Differential Revision: https://reviews.llvm.org/D98139
2021-03-15 19:24:56 +02:00
Martin Storsjö d07e5c23b4 [libcxx] [test] Fix the get_temp_file_name() function for mingw
Add the missing includes for getting the defines and functions used
in the mingw version of get_temp_file_name().

This fixes 31 tests when built in a mingw configuration.

Also remove a redundant ifdef; _WIN32 is defined in mingw targets too.

Differential Revision: https://reviews.llvm.org/D97456
2021-03-15 18:52:49 +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
Christopher Di Bella 8d4af1b6e0 [libcxx] adds concept std::regular
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D97911

Reviewed By: EricWF, #libc, Quuxplusone

Differential Revision: https://reviews.llvm.org/D98154
2021-03-12 08:54:03 -08:00
Christopher Di Bella 154395536e [libcxx] adds concept std::semiregular
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D97443

Reviewed By: Quuxplusone, EricWF, #libc

Differential Revision: https://reviews.llvm.org/D97911
2021-03-11 22:40:07 -08:00
Christopher Di Bella 8ef69c66d5 [libcxx] adds concept std::copyable
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D97359

Reviewed By: EricWF, #libc, Quuxplusone, zoecarver

Differential Revision: https://reviews.llvm.org/D97443
2021-03-11 19:30:55 -08:00
Christopher Di Bella dc9f385722 [libcxx] adds concept std::movable
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D97162

Reviewed By: EricWF, #libc, Quuxplusone

Differential Revision: https://reviews.llvm.org/D97359
2021-03-11 19:27:43 -08:00
Martin Storsjö e69c65d5c4 [libcxx] Test accessing a directory on windows that gives "access denied" errors
Fix handling of skip_permission_denied on windows; after converting
the return value of GetLastError() to a standard error_code, ec.value()
is in the standard errc range, not a native windows error code. This
was missed in 156180727d.

The directory "C:\System Volume Information" does seem to exist and
have these properties on most relevant contempory setups.

Differential Revision: https://reviews.llvm.org/D98166
2021-03-11 21:07:29 +02:00
Martin Storsjö 8ba05e1489 [libcxx] [test] Disable a test regarding error behaviour for excessively long paths on windows
Checking for the existence of an invalid long path name isn't
an error in itself on windows.

Differential Revision: https://reviews.llvm.org/D98141
2021-03-11 20:21:54 +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 e23317c9da [libcxx] [test] Adjust separator form in fs.op.absolute for libc++ on windows
This test was previously tweaked in
321f696920 to match the output of
of MS STL (except that the MS STL fails on the testcase with an
empty path).

libc++ doesn't produce paths with all normalized separators (and the
spec doesn't mandate it to either).

Tweak the test reference to match exactly what libc++ produces. If
testing with a non-libc++ library, do a relaxed comparison that allows
the separators to differ.

Differential Revision: https://reviews.llvm.org/D98215
2021-03-09 16:57:26 +02:00
Martin Storsjö 3a11a41795 [libcxx] [test] Don't test CharFile (/dev/null) on windows
Also clarify a nearby comment regarding block devices.

Differential Revision: https://reviews.llvm.org/D98138
2021-03-07 23:26:41 +02:00
Martin Storsjö 52c5f5ad5f [libcxx] [test] Fix building create_directory in MSVC configurations
Don't use the mode_t type - the official windows sdk doesn't have that type.
(Mingw headers does have such a typedef though.) The umask function returns
int on windows, in both header variants.

Thus just use auto to deduce the umask return type automatically.

Differential Revision: https://reviews.llvm.org/D98140
2021-03-07 23:26:41 +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
David Zarzycki f4059cc352 Partially revert "[runtimes] Use add_lit_testsuite to register lit testsuites"
This partially reverts commit e1173c8794
until we find out why libcxx tests are failing under runtimes build.
2021-03-06 06:06:55 -05:00
Christopher Di Bella c744332793 [libcxx] adds std::ranges::swap, std::swappable, and std::swappable_with
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D96742

Differential Revision: https://reviews.llvm.org/D97162
2021-03-05 19:03:57 -08:00
Petr Hosek e1173c8794 [runtimes] Use add_lit_testsuite to register lit testsuites
The runtimes build uses variables set by add_lit_testsuite to collect
testsuites from all the runtimes.

Differential Revision: https://reviews.llvm.org/D97913
2021-03-05 10:37:21 -08:00
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
Marek Kurdej 43e4214173 [libc++] [C++2b] [P1682] Add to_underlying.
* https://wg21.link/P1682

Reviewed By: ldionne, Mordante, #libc

Differential Revision: https://reviews.llvm.org/D97365
2021-03-05 10:31:21 +01:00
Martin Storsjö 99c7b53294 [libcxx] Avoid infinite recursion in create_directories, if the root directory doesn't exist
Differential Revision: https://reviews.llvm.org/D97618
2021-03-05 10:49:01 +02:00
Christopher Di Bella 6eb5d55c55 [libcxx] fixes up some [concepts]-related code
* moves `std::copy_constructible` so it comes before
  `std::equality_comparable_with`
* replaces a few uses of `auto`
2021-03-04 22:09:43 -08:00
Christopher Di Bella e63ddcccf8 [libcxx] adds concepts std::equality_comparable[_with]
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D96660

Reviewed By: ldionne, #libc, Quuxplusone

Differential Revision: https://reviews.llvm.org/D97176
2021-03-04 18:24:04 -08:00
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
Christopher Di Bella 647af31e74 [libcxx] adds concept `std::assignable_from`
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D96660

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D96742
2021-03-03 22:41:55 -08:00
Christopher Di Bella f893312c1a [libcxx] adds concept `std::common_with`
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D96660

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D96683
2021-03-03 20:01:11 -08:00
Christopher Di Bella 3f5438c46c [libcxx] adds concept `std::common_reference_with`
Implements parts of:
    - P0898R3 Standard Library Concepts
    - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D96657

Reviewed By: ldionne, Mordante, #libc

Differential Revision: https://reviews.llvm.org/D96660
2021-03-03 17:52:41 -08:00
Louis Dionne 3c62198c61 [libc++] NFC: Normalize links to bug reports 2021-03-03 13:45:29 -05:00
zoecarver 84a50f5911 [libc++] Add bind_front function (P0356R5).
Implementes [[ http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0356r5.html | P0356R5 ]]. Adds `bind_front` to `functional`.

Reviewed By: ldionne, #libc, Quuxplusone

Differential Revision: https://reviews.llvm.org/D60368
2021-03-02 16:18:06 -08:00
Christopher Di Bella eadece333f [libcxx] adds common_reference to <type_traits>
Implements part of P0898R3 Standard Library Concepts

Reworks D74351 to use requires-clauses over SFINAE and so that it more
closely follows the wording.

Co-authored by: Michael Schellenberger Costa <mschellenbergercosta@googlemail.com>

(Michael did all the heavy lifting and I came in to polish it for
 submission, since Michael is focussing on `std::format` now.)

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D96657
2021-03-02 22:33:37 +00:00
Martin Storsjö 4adb4bca05 [libcxx] [test] Fix a test error with condvars with trivial destruction
If the destructor is trivial (_LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION,
the constructor always is), the compiler warns about the
std::condition_variable being unused.

Add a cast to void to silence the warning about the object being unused.

Differential Revision: https://reviews.llvm.org/D97540
2021-03-02 20:34:22 +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
Louis Dionne 60ba1fefab [libc++/abi] Allow running back-deployment testing against libc++abi
Before this patch, we could only link against the back-deployment libc++abi
dylib. This patch allows linking against the just-built libc++abi, but
running against the back-deployment one -- just like we do for libc++.

Also, add XFAIL markup to flag expected errors.

Differential Revision: https://reviews.llvm.org/D91069
2021-03-01 12:13:03 -05:00
Casey Carter 30cd3dd0fb [libcxx][test] Don't require Container<cv T> extension on non-libc++
... when testing `default_initializable`. Also, include `<memory>` for `unique_ptr`.
2021-02-26 13:40:22 -08:00
Christopher Di Bella e4dd614ae8 [libcxx] cleans up __cpp_concepts mess
libc++ was previously a bit confused by what the value of __cpp_concepts
should be. Also replaces `__floating_point` with `floating_point` now
that it exists.

Differential Revision: https://reviews.llvm.org/D97015
2021-02-26 18:43:40 +00:00
Louis Dionne 27f9ed7850 [libc++] Make the from-scratch config work on macOS out-of-the-box 2021-02-26 13:11:49 -05:00
Martin Storsjö 3be7968c36 [libcxx] [test] Ifdef out uses of create_fifo on windows
Restructure code in directory_entry.obs/file_type_obs.pass.cpp
and directory_entry.obs/hard_link_count.pass.cpp to reduce the
amount of ifdeffery needed.

In file_type_obs.pass.cpp, we can't inline the calls to
env.create_* into the lambda calls (e.g. "test_path(env.create_*())"),
because the lambda removes the referenced file, and the hardlink
must be created while the earlier test file exists.

In hard_link_count.pass.cpp, move restoration of the original
directory permissions to the end of the lambda, so that new
directory entries can be created after the lambda has run once.

Differential Revision: https://reviews.llvm.org/D89948
2021-02-26 00:10:47 +02:00
Martin Storsjö f15377084c [libcxx] [test] Use string().c_str() to convert a std::filesystem::path to a const char*
On Windows, path::value_type is wchar_t, so one can't pass the return
value of path::c_str() directly to std::remove().

This matches what was done for tests under std/input.output/filesystems
in 81db3c31aa and
3784bdf217.

Differential Revision: https://reviews.llvm.org/D97458
2021-02-26 00:10:47 +02:00
Louis Dionne 618862e89a [libc++] Fix incorrect forwarding in tuple's assignment operator
Also, add a bunch of tests for tuple and pair's assignment operators
involving reference types.

Differential Revision: https://reviews.llvm.org/D97419
2021-02-25 14:56:16 -05:00
Martin Storsjö c218c80c73 [libcxx] [test] Quote the path to the python interpreter
This should allow running tests with the interpreter in some of the
default paths where Python for Windows might be installed.

Differential Revision: https://reviews.llvm.org/D97369
2021-02-24 22:24:41 +02:00
Louis Dionne 5f5416e1c4 [libc++] NFC: Fix a few tests in tuple that would succeed trivially 2021-02-24 11:33:41 -05:00
Louis Dionne 4814985dec [libc++] NFC: Fix a few tests in pair that would succeed trivially 2021-02-24 11:25:45 -05:00
Louis Dionne a0839b14df [libc++] Fix tuple assignment from types derived from a tuple-like
The implementation of tuple's constructors and assignment operators
currently diverges from the way the Standard specifies them, which leads
to subtle cases where the behavior is not as specified. In particular, a
class derived from a tuple-like type (e.g. pair) can't be assigned to a
tuple with corresponding members, when it should. This commit re-implements
the assignment operators (BUT NOT THE CONSTRUCTORS) in a way much closer
to the specification to get rid of this bug. Most of the tests have been
stolen from Eric's patch https://reviews.llvm.org/D27606.

As a fly-by improvement, tests for noexcept correctness have been added
to all overloads of operator=. We should tackle the same issue for the
tuple constructors in a future patch - I'm just trying to make progress
on fixing this long-standing bug.

PR17550
rdar://15837420

Differential Revision: https://reviews.llvm.org/D50106
2021-02-22 14:52:18 -05:00
Martin Storsjö 3d6ca4b8dc [libcxx] [test] Call create_directory_symlink when linking directories
This makes the symlinks work properly on windows.

A similar round of cleanup was done in
c41bda7f5f, but these tests were
added after that.

Differential Revision: https://reviews.llvm.org/D97089
2021-02-21 00:25:54 +02:00