Commit Graph

318 Commits

Author SHA1 Message Date
Konstantin Varlamov e65d3760a3 [libc++][ranges] Implement `indirectly_copyable{,_storable}`.
Also refactor tests for `indirectly_movable{,_storable}`.

Differential Revision: https://reviews.llvm.org/D118432
2022-02-02 13:27:44 -08:00
Nikolas Klauser 5d2b8fa155 [libc++][test] add vector<bool>::reference tests
Add test coverage for `vector<bool>::reference`

Reviewed By: Quuxplusone, ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D117780
2022-01-31 17:46:12 +01:00
Joe Loser 81cc834a48
[libc++][test] Clean up libcxx/test/support/MoveOnly.h
Remove copy and copy assignment rather than have them as private declarations.
They are superfluous given the move and move assignment.

As a drive-by, also specialize `std::hash` without reopening `namespace std`.

Differential Revision: https://reviews.llvm.org/D118502
2022-01-29 18:20:46 -05:00
Casey Carter 93230ac1d2 [libcxx][test] Use bool allocators for vector<bool>::get_allocator test
... to be consistent with other `get_allocator` tests, and to avoid requiring `vector<T, allocator<U>>` to be valid.
2022-01-25 10:29:12 -08:00
Casey Carter 4e00a1921f [libcxx][test] compiler options are non-portable
... it's easier to suppress warnings internally, where we can detect the compiler.

* Rename `TEST_COMPILER_C1XX` to `TEST_COMPILER_MSVC`
* Rename all `TEST_WORKAROUND_C1XX_<meow>` to `TEST_WORKAROUND_MSVC_<meow>`

Differential Revision: https://reviews.llvm.org/D117422
2022-01-18 11:34:57 -08:00
Casey Carter cb71d77cc8 [libcxx][test] Add missing includes and suppress warnings
... from testing with MSVC's STL. Mostly truncation warnings and variables that are only used in `LIBCPP_ASSERT`.

Differential Revision: https://reviews.llvm.org/D116878
2022-01-13 17:34:04 -08:00
Arthur O'Dwyer 67151d029b [libc++] [ranges] Implement P2415R2 owning_view.
"What is a view?"
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2415r2.html
https://github.com/cplusplus/draft/pull/5010/files

This was a late-breaking (Oct 2021) change to C++20.
The only thing missing from this patch is that we're supposed
to bump the feature-test macro from
    #define __cpp_lib_ranges 202106L
to
    #define __cpp_lib_ranges 202110L
but we can't do that because we don't implement all of 202106 Ranges yet.

Differential Revision: https://reviews.llvm.org/D116894
2022-01-13 12:29:41 -05:00
Nico Weber 085f078307 Revert "Revert D109159 "[amdgpu] Enable selection of `s_cselect_b64`.""
This reverts commit 859ebca744.
The change contained many unrelated changes and e.g. restored
unit test failes for the old lld port.
2022-01-05 13:10:25 -05:00
David Salinas 859ebca744 Revert D109159 "[amdgpu] Enable selection of `s_cselect_b64`."
This reverts commit 640beb38e7.

That commit caused performance degradtion in Quicksilver test QS:sGPU and a functional test failure in (rocPRIM rocprim.device_segmented_radix_sort).
Reverting until we have a better solution to s_cselect_b64 codegen cleanup

Change-Id: Ibf8e397df94001f248fba609f072088a46abae08

Reviewed By: kzhuravl

Differential Revision: https://reviews.llvm.org/D115960

Change-Id: Id169459ce4dfffa857d5645a0af50b0063ce1105
2022-01-05 17:57:32 +00:00
Louis Dionne 4a47ac7d51 [libc++] Remove incorrect default constructor in cpp17_input_iterator
AFAICT, Cpp17InputIterators are not required to be default constructible,
since that requirement is added in Cpp17ForwardIterator. Hence, our
archetype for Cpp17InputIterator should not be default constructible.
Removing that constructor has a ripple effect on a couple of tests that
were making incorrect assumptions. Notably:

- Some tests were using cpp17_input_iterator as a sentinel for itself.
  That is not valid, because a cpp17_input_iterator is not semiregular
  anymore after the change (and hence it doesn't satisfy sentinel_for).

- Some tests were using a stride-counted cpp17_input_iterator as the
  sentinel for a range. This doesn't work anymore because of the problem
  above, so these tests were changed not to check stride counts for
  input iterators.

- Some tests were default constructing cpp17_input_iterator when a simple
  alternative was available -- those have been changed to use that alternative.

Differential Revision: https://reviews.llvm.org/D115806
2022-01-04 14:33:51 -05:00
Konstantin Boyarinov ff94bd1bc9 [libcxx][test][NFC] noexcept tests for std::array
Minor change - add tests that std::array methods (data, (c/r)begin,
(c/r)end) are noexcept

Reviewed By: ldionne, rarutyun, #libc

Differential Revision: https://reviews.llvm.org/D115717
2021-12-18 16:06:56 +03:00
Konstantin Boyarinov 82ff94a59c [libcxx][test][NFC] Extend testing for vector.cons
Extending std::vector tests in vector.cons module:

- std::vector::assign when source range is bigger than destination
  capacity
- construction of empty vector using copy ctor, initializer_list ctor and
  others

Reviewed By: ldionne, rarutyun, #libc

Differential Revision: https://reviews.llvm.org/D114954
2021-12-10 15:05:22 +03:00
Konstantin Boyarinov 8c6b24899e [libcxx][test][NFC] Various tests for std::vector
Add missing tests for std::vector funcionality to improve code coverage:

  - Rewrote access tests to check modification of the container using
    the reference returned by the non-const overload
  - Added tests for reverse iterators: rbegin, rend, etc.
  - Added exception test for vector::reserve
  - Extended test cases for vector copy assignment
  - Fixed insert_iter_value.pass.cpp to use insert overload with const
    value_type& (not with value_type&& which is tested in
    iter_rvalue.pass.cpp test)

Reviewed By: Quuxplusone, rarutyun, #libc

Differential Revision: https://reviews.llvm.org/D112438
2021-12-02 02:11:45 +03:00
Konstantin Varlamov 7da4ee6f23 [libcxx][NFC] Make sequence containers slightly more SFINAE-friendly during CTAD.
Disable the constructors taking `(size_type, const value_type&,
allocator_type)` if `allocator_type` is not a valid allocator.
Otherwise, these constructors are considered when resolving e.g.
`(int*, int*, NotAnAllocator())`, leading to a hard error during
instantiation. A hard error makes the Standard's requirement to not
consider deduction guides of the form `(Iterator, Iterator,
BadAllocator)` during overload resolution essentially non-functional.

The previous approach was to SFINAE away `allocator_traits`. This patch
SFINAEs away the specific constructors instead, for consistency with
`basic_string` -- see [LWG3076](wg21.link/lwg3076) which describes
a very similar problem for strings (note, however, that unlike LWG3076,
no valid constructor call is affected by the bad instantiation).

Differential Revision: https://reviews.llvm.org/D114311
2021-12-01 11:56:51 -08:00
Konstantin Boyarinov 8d25da78aa [libcxx][test][NFC] Extend get_allocator() testing for containers
Add dedicated tests for get_allocator() method for sequence, ordered and
unordered associative containers including constness coverage.

Reviewed by: ldionne, Mordante, rarutyun, #libc

Differential revision: https://reviews.llvm.org/D114785
2021-12-01 16:15:19 +03:00
Mark de Wever 4732dd3010 [libc++] Use addressof in list.
This addresses the usage of `operator&` in `<list>`.

(Note there are still more headers with the same issue.)

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D112654
2021-11-11 18:56:08 +01:00
Mark de Wever f7345de64f [libc++] Use addressof in forward_list.
This addresses the usage of `operator&` in `<forward_list>`.

(Note there are still more headers with the same issue.)

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D112660
2021-11-11 18:47:15 +01:00
Mark de Wever 65fceaebc7 [libc++] Adds missing forward_list merge tests.
During the review of D112660 it turned out the tests for
`std::forward_list::merge` are incomplete.

Adds tests for the rvalue reference overloads. The tests are extended to
better test the Effects [forward.list.ops]/25 and Remarks
[forward.list.ops]/27 of the function:
- x is empty after the merge.
- Pointers and references to the moved elements of x now refer to those
  same elements but as members of *this.
- Iterators referring to the moved elements will continue to refer to
  their elements, but they now behave as iterators into *this, not into x.
- The algorithm is stable.

Reviewed By: Quuxplusone, #libc, ldionne

Differential Revision: https://reviews.llvm.org/D113364
2021-11-09 20:12:02 +01:00
Konstantin Varlamov 68072a7166 [libc++] P0433R2: test that deduction guides are properly SFINAEd away.
Deduction guides for containers should not participate in overload
resolution when called with certain incorrect types (e.g. when called
with a template argument in place of an `InputIterator` that doesn't
qualify as an input iterator). Similarly, class template argument
deduction should not select `unique_ptr` constructors that take a
a pointer.

The tests try out every possible incorrect parameter (but never more
than one incorrect parameter in the same invocation).

Also add deduction guides to the synopsis for associative and unordered
containers (this was accidentally omitted from [D112510](https://reviews.llvm.org/D112510)).

Differential Revision: https://reviews.llvm.org/D112904
2021-11-09 09:32:24 -08:00
Nikolas Klauser 9a140a1586 [libc++] Make test_allocator constexpr-friendly for constexpr string/vector
Make test_allocator etc. constexpr-friendly so they can be used to test constexpr string and possibly constexpr vector

Reviewed By: Quuxplusone, #libc, ldionne

Differential Revision: https://reviews.llvm.org/D110994
2021-11-07 16:15:28 +01:00
Konstantin Boyarinov d7ac595fc5 [libcxx][test][NFC] More tests for containers comparisons
Add more missing tests for comparisons to improve code coverage (follow-up for D111738)

Reviewed By: ldionne, rarutyun, #libc

Differential Revision: https://reviews.llvm.org/D112424
2021-11-03 16:15:10 +03:00
Konstantin Boyarinov c87a4a46b2 [libc++][test][NFC] Add tests for std::vector comparisons
Add missing tests for std::vector operator==, !=, <, <=, >, >=

Reviewed By: ldionne, rarutyun, Quuxplusone, Mordante, #libc

Differential Revision: https://reviews.llvm.org/D111738
2021-10-22 18:11:04 +03:00
Mark de Wever 56df1d80e2 [libc++] Use addressof in vector.
This addresses the usage of `operator&` in `<vector>`.

I now added tests for the current offending cases. I wonder whether it
would be better to add one addressof test per directory and test all
possible violations. Also to guard against possible future errors?

(Note there are still more headers with the same issue.)

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D111961
2021-10-21 17:28:17 +02:00
Mikhail Maltsev 05a2d17668 [libcxx] Throw correct exception from std::vector::reserve
According to the standard [vector.capacity]/5, std::vector<T>::reserve
shall throw an exception of type std::length_error when the requested
capacity exceeds max_size().

This behavior is not implemented correctly: the function 'reserve'
simply propagates the exception from allocator<T>::allocate. Before
D110846 that exception used to be of type std::length_error (which is
correct for vector<T>::reserve, but incorrect for
allocator<T>::allocate).

This patch fixes the issue and adds regression tests.

Reviewed By: Quuxplusone, ldionne, #libc

Differential Revision: https://reviews.llvm.org/D112068
2021-10-21 10:40:48 +01:00
Mikhail Maltsev 49be23a1eb [libcxx] Support allocators with explicit c-tors in vector<bool>
std::vector<bool> rebinds the supplied allocator to construct objects
of type '__storage_type' rather than 'bool'. Allocators are allowed to
use explicit conversion constructors, so care must be taken when
performing conversions.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D112150
2021-10-21 10:38:56 +01:00
Mark de Wever 968e27397c [libc++] Use addressof to fix debug tests.
Fixes the tests added in D110852 for the debug iterators.

Similar issues with hijacking `operator&` still exist, they will be
addressed separately.

Reviewed By: #libc, ldionne, Quuxplusone

Differential Revision: https://reviews.llvm.org/D111564
2021-10-12 18:15:35 +02:00
Mark de Wever b8608b8723 [libc++] Use addressof in assignment operator.
Replace `&__rhs` with `_VSTD::addressof(__rhs)` to guard against ADL hijacking
of `operator&` in `operator=`. Thanks to @CaseyCarter for bringing it to our
attention.

Similar issues with hijacking `operator&` still exist, they will be
addressed separately.

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D110852
2021-10-07 18:10:47 +02:00
Mark de Wever 09b51451da [NFC][libc++] Use TEST_HAS_NO_EXCEPTIONS in tests. 2021-10-02 13:47:27 +02:00
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
Joe Loser 9fb3669429
[libc++][test] Remove disable_missing_braces_warning.h from tests
Several tests include `disable_missing_braces_warning.h` but do not need
to. Remove the include.

Inspired from discussion at https://reviews.llvm.org/D109668

Reviewed By: ldionne, #libc, Mordante

Differential Revision: https://reviews.llvm.org/D109711
2021-09-22 16:00:16 -04:00
Arthur O'Dwyer 16bf43398a [libc++] Comma-operator-proof a lot of algorithm/container code.
Detected by evil-izing the widely used `MoveOnly` testing type.
I had to patch some tests that were themselves using its comma operator,
but I think that's a worthwhile cost in order to catch more places
in our headers that needed comma-proofing.

The trick here is that even `++ptr, SomeClass()` can find a comma operator
by ADL, if `ptr` is of type `Evil*`. (A comma between two operands
of non-class-or-enum type is always treated as the built-in
comma, without ADL. But if either operand is class-or-enum, then
ADL happens for _both_ operands' types.)

Differential Revision: https://reviews.llvm.org/D109414
2021-09-08 13:34:01 -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 5425106e49 [libc++] Remove test-suite annotations for unsupported Clang versions
Differential Revision: https://reviews.llvm.org/D108471
2021-08-20 15:05:13 -04:00
Louis Dionne 0166690401 [libc++] Remove workarounds for the lack of deduction guides in C++17
All supported compilers have supported deduction guides in C++17 for a
while, so this isn't necessary anymore.

Differential Revision: https://reviews.llvm.org/D108213
2021-08-18 08:57:25 -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
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
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 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 edc1f0c12c [libcxx][ranges] Implement indirectly_swappable.
Differential Revision: https://reviews.llvm.org/D105304
2021-07-01 15:08:23 -07:00
zoecarver 3450398738 [libcxx][ranges] Add contiguous_range.
Differential Revision: https://reviews.llvm.org/D104262
2021-06-24 10:40:05 -07:00
zoecarver 075f2370c7 [libcxx][ranges] Add `indirectly_movable` and `indirectly_movable_storable`.
Differential Revision: https://reviews.llvm.org/D102639
2021-06-21 12:39:25 -07:00
Louis Dionne 134723edd5 [libcxx] Move all algorithms into their own headers
This is a fairly mechanical change, it just moves each algorithm into
its own header. This is intended to be a NFC.

This commit re-applies 7ed7d4ccb8, which was reverted in 692d7166f7
because the Modules build got broken. The modules build has now been
fixed, so we're re-committing this.

Differential Revision: https://reviews.llvm.org/D103583

Attribution note
----------------
I'm only committing this. This commit is a mix of D103583, D103330 and
D104171 authored by:

Co-authored-by: Christopher Di Bella <cjdb@google.com>
Co-authored-by: zoecarver <z.zoelec2@gmail.com>
2021-06-19 07:49:06 -04:00
Arthur O'Dwyer dd15c2723c [libc++] [P1518R2] Better CTAD behavior for containers with allocators.
P1518 does the following in C++23 but we'll just do it in C++17 as well:
- Stop requiring `Alloc` to be an allocator on some container-adaptor deduction guides
- Stop deducing from `Allocator` on some sequence container constructors
- Stop deducing from `Allocator` on some other container constructors (libc++ already did this)

The affected constructors are the "allocator-extended" versions of
constructors where the non-allocator arguments are already sufficient
to deduce the allocator type. For example,

    std::pmr::vector<int> v1;
    std::vector v2(v1, std::pmr::new_delete_resource());
    std::stack s2(v1, std::pmr::new_delete_resource());

Differential Revision: https://reviews.llvm.org/D97742
2021-06-18 15:54:46 -04:00
Petr Hosek 692d7166f7 Revert "[libcxx][gardening] Move all algorithms into their own headers."
This reverts commit 7ed7d4ccb8 as it
uncovered a Clang bug PR50592.
2021-06-07 17:15:20 -07:00
zoecarver 7ed7d4ccb8 [libcxx][gardening] Move all algorithms into their own headers.
This is a fairly mechanical change, it just moves each algorithm into its own header. This is a NFC.

Note: during this change, I burned down all the includes, so this follows "include only and exactly what you use."

Differential Revision: https://reviews.llvm.org/D103583
2021-06-04 09:37:12 -07:00
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
zoecarver bede7523b1 [libcxx][ranges] Add `contiguous_iterator`.
Differential Revision: https://reviews.llvm.org/D101396
2021-05-14 15:27:40 -07:00
Arthur O'Dwyer a1f75bf091 [libc++] [test] Simplify arithmetic in list.special/swap.pass.cpp. NFCI.
Part of https://reviews.llvm.org/D102003
2021-05-07 10:03:52 -04:00
Arthur O'Dwyer 8935c8449b [libc++] [test] Test that list::swap/move/move-assign does not invalidate iterators.
And remove the dedicated debug-iterator test; we want to test this in all modes.
We have a CI step for testing the whole test suite with `--debug_level=1` now.

Part of https://reviews.llvm.org/D102003
2021-05-07 10:03:23 -04:00