Mark de Wever
0a1317564a
[libc++] Adds a global private constructor tag. ( #87920 )
...
This removes the similar tags used in the chrono tzdb implementation.
Fixes: https://github.com/llvm/llvm-project/issues/85432
2024-04-10 20:34:58 +02:00
Mark de Wever
0ad663ead1
[libc++] Removes Clang-16 support. ( #87810 )
...
With the release of Clang-18 we no longer officially support Clang-16.
2024-04-10 17:51:02 +02:00
Mark de Wever
1fda1776e3
[libc++][chrono] Adds the sys_info class. ( #85619 )
...
Adds the sys_info class and time_zone::get_info(). The code still has a
few quirks and has not been optimized for performance yet.
The returned sys_info is compared against the output of the zdump tool
in the test giving confidence the implementation is correct.
Implements parts of:
- P0355 Extending <chrono> to Calendars and Time Zones
Implements:
- LWGXXXX The sys_info range should be affected by save
2024-04-10 07:50:17 +02:00
Mark de Wever
59e66c515a
[libc++][format] Switches to Unicode 15.1. ( #86543 )
...
In addition to changes in the tables the extended grapheme clustering
algorithm has been overhauled. Before I considered a separate state
machine to implement the rules. With the new rule GB9c this became more
attractive and the design has changed.
This change initially had quite an impact on the performance. By making
the state machine persistent the performance was improved greatly. Note
it is still slower than before due to the larger Unicode tables.
Before
--------------------------------------------------------------------
Benchmark Time CPU Iterations
--------------------------------------------------------------------
BM_ascii_text<char> 1891 ns 1889 ns 369504
BM_unicode_text<char> 106642 ns 106397 ns 6576
BM_cyrillic_text<char> 73420 ns 73277 ns 9445
BM_japanese_text<char> 62485 ns 62387 ns 11153
BM_emoji_text<char> 1895 ns 1893 ns 369525
BM_ascii_text<wchar_t> 2015 ns 2013 ns 346887
BM_unicode_text<wchar_t> 92119 ns 92017 ns 7598
BM_cyrillic_text<wchar_t> 62637 ns 62568 ns 11117
BM_japanese_text<wchar_t> 53850 ns 53785 ns 12803
BM_emoji_text<wchar_t> 2016 ns 2014 ns 347325
After
--------------------------------------------------------------------
Benchmark Time CPU Iterations
--------------------------------------------------------------------
BM_ascii_text<char> 1906 ns 1904 ns 369409
BM_unicode_text<char> 265462 ns 265175 ns 2628
BM_cyrillic_text<char> 181063 ns 180865 ns 3871
BM_japanese_text<char> 130927 ns 130789 ns 5324
BM_emoji_text<char> 1892 ns 1890 ns 370537
BM_ascii_text<wchar_t> 2038 ns 2035 ns 343689
BM_unicode_text<wchar_t> 277603 ns 277282 ns 2526
BM_cyrillic_text<wchar_t> 188558 ns 188339 ns 3727
BM_japanese_text<wchar_t> 133084 ns 132943 ns 5262
BM_emoji_text<wchar_t> 2012 ns 2010 ns 348015
Persistent
--------------------------------------------------------------------
Benchmark Time CPU Iterations
--------------------------------------------------------------------
BM_ascii_text<char> 1904 ns 1899 ns 367472
BM_unicode_text<char> 133609 ns 133287 ns 5246
BM_cyrillic_text<char> 90185 ns 89941 ns 7796
BM_japanese_text<char> 75137 ns 74946 ns 9316
BM_emoji_text<char> 1906 ns 1901 ns 368081
BM_ascii_text<wchar_t> 2703 ns 2696 ns 259153
BM_unicode_text<wchar_t> 131497 ns 131168 ns 5341
BM_cyrillic_text<wchar_t> 87071 ns 86840 ns 8076
BM_japanese_text<wchar_t> 72279 ns 72099 ns 9682
BM_emoji_text<wchar_t> 2021 ns 2016 ns 346767
2024-04-09 19:20:06 +02:00
Mark de Wever
1381645ab6
[libc++][format] adds a basic fuzzer test. ( #87883 )
...
This adds an initial fuzzer. Different formatting arguments will execute
different code paths. This will be tested by different fuzzer tests.
The code is based on a sample provided by Louis.
2024-04-09 19:08:40 +02:00
Louis Dionne
e280407a48
[libc++] Add test coverage for our implementation of LWG4031 ( #87508 )
...
This was actually already implemented in the initial version of
std::expected, but this patch adds test coverage and makes it more
explicit that we intend to make these functions noexcept.
2024-04-09 11:27:40 -04:00
Jakub Mazurkiewicz
c8917048e3
[libc++] Implement bind_back ( #81055 )
...
Implement `std::bind_back` function from P2387R3 "Pipe support for
user-defined range adaptors".
2024-04-09 11:10:20 -04:00
Hristo Hristov
ea2392ed33
[libc++][format] Fixed println.blank_line.sh.cpp test on llvm-clang-win-x-* configurations ( #88011 )
...
Fix for issue:
https://github.com/llvm/llvm-project/pull/87277#issuecomment-2041864530
The test fails on the windows to linux cross builders. The proposed
resolution is to print some text. The issue is possibly due to the
original test outputting a single `\n` character.
2024-04-08 11:12:31 -07:00
Hristo Hristov
7f9f82e3de
[libc++][format] P3142R0: Printing Blank Lines with println ( #87277 )
...
Implements https://wg21.link/P3142R0
Applied retroactively as DR, same as stdlibc++ and MS STL:
https://github.com/orgs/microsoft/projects/1143?pane=issue&itemId=57457187
2024-04-06 21:52:52 +03:00
yronglin
4761e74a27
[libc++] Implement LWG3430 disallow implicit conversion of the source arguments to std::filesystem::path when constructing std::basic_*fstream ( #85079 )
...
Implement [LWG3430](https://wg21.link/LWG3430 ).
---------
Signed-off-by: yronglin <yronglin777@gmail.com >
2024-04-06 20:33:41 +08:00
Hristo Hristov
a834436099
[libc++] P2872R3: Remove `wstring_convert` From C++26 ( #87100 )
...
Implements: https://wg21.link/P2872R3
2024-04-05 22:04:07 +03:00
Mark de Wever
b798c2af8b
[libc++][CI] Updates to Clang 19. ( #85301 )
...
Since we have released Clang 16 is no longer actively supported. However
the FreeBSD runner is still using this, so some tests still guard
against Clang 16.
2024-04-04 20:48:23 +02:00
Mark de Wever
4167fec407
[libc++][chrono] Completes the tzdb class. ( #82157 )
...
It adds the missing member functions of the tzdb class and adds the free
functions that use these member functions.
Implements parts of:
- P0355 Extending <chrono> to Calendars and Time Zones
2024-04-04 19:03:01 +02:00
Hristo Hristov
fb635be0b8
[libc++] P2867R1: Remove Deprecated strstreams From C++26 ( #87107 )
...
Implements: https://wg21.link/P2867R2
---------
Co-authored-by: Hristo Hristov <zingam@outlook.com >
2024-04-04 06:03:00 +03:00
Damien L-G
4078763e2e
[libc++] Fix copy/pasta error in atomic tests for atomic_compare_exchange_{weak,strong} ( #87135 )
...
Spotted this minor mistake in the tests as I was looking into testing
more thoroughly `atomic_ref`.
The two argument overloads are tested just above. The names of the
lambda clearly indicates that the intent was to test the one argument
overload.
2024-04-03 17:51:46 -04:00
Mark de Wever
6f2d8cc061
[libc++][chrono] Loads leap-seconds.list in tzdb. ( #82113 )
...
This implements the loading of the leap-seconds.list file and store its
contents in the tzdb struct.
This adds the required `leap_seconds` member.
The class leap_seconds is fully implemented including its non-member
functions.
Implements parts of:
- P0355 Extending <chrono> to Calendars and Time Zones
- P1614 The Mothership has Landed
Implements:
- P1981 Rename leap to leap_second
- LWG3359 <chrono> leap second support should allow for negative leap
seconds
- LWG3383 §[time.zone.leap.nonmembers] sys_seconds should be replaced
with seconds
2024-04-03 18:15:24 +02:00
Louis Dionne
b699a9ba11
[libc++] Update status page after the Tokyo meeting ( #87395 )
2024-04-03 08:21:11 -04:00
Louis Dionne
d1f585056f
[libc++] Fix tests on musl ( #85085 ) ( #86934 )
...
One or two of the tests need slight tweaks to make them pass when
building with musl.
This patch is a re-application of b61fb180847c90ahoughton@apple.com >
2024-04-03 06:07:46 -04:00
Louis Dionne
ca48d4dfd3
[libc++] Add a static_assert for a Mandates in seed_seq ( #86992 )
...
Fixes #84843
2024-04-03 06:06:52 -04:00
A. Jiang
04dbf7ad44
[libc++][ranges] Avoid using distance in ranges::contains_subrange ( #87155 )
...
Both `std::distance` or `ranges::distance` are inefficient for
non-sized ranges. Also, calculating the range using `int` type is
seriously problematic.
This patch avoids using `distance` and calculation of the length of
non-sized ranges.
Fixes #86833 .
2024-04-02 17:21:15 -07:00
Jan Kokemüller
84ae8cb4af
[libc++] std::ranges::advance: avoid unneeded bounds checks when advancing iterator ( #84126 )
...
Currently, the bounds check in `std::ranges::advance(it, n, s)` is done
_before_ `n` is checked. This results in one extra, unneeded bounds
check.
Thus, `std::ranges::advance(it, 1, s)` currently is _not_ simply
equivalent to:
```c++
if (it != s) {
++it;
}
```
This difference in behavior matters when the check involves some
"expensive" logic. For example, the `==` operator of
`std::istreambuf_iterator` may actually have to read the underlying
`streambuf`.
Swapping around the checks in the `while` results in the expected
behavior.
2024-04-02 16:09:26 -07:00
Nikolas Klauser
239236b8c2
[libc++] Remove pair dependency ( #85621 )
...
This moves the definition of a `pair` constructor for `<tuple>` to
`<__utility/pair.h>` and uses the forward declaration of `pair` in
`<tuple>` instead of including the definition.
2024-04-02 19:37:31 +02:00
Nikolas Klauser
985c1a44f8
[libc++] Optimize the two range overload of mismatch ( #86853 )
...
```
-----------------------------------------------------------------------------
Benchmark old new
-----------------------------------------------------------------------------
bm_mismatch_two_range_overload<char>/1 0.941 ns 1.88 ns
bm_mismatch_two_range_overload<char>/2 1.43 ns 2.15 ns
bm_mismatch_two_range_overload<char>/3 1.95 ns 2.55 ns
bm_mismatch_two_range_overload<char>/4 2.58 ns 2.90 ns
bm_mismatch_two_range_overload<char>/5 3.75 ns 3.31 ns
bm_mismatch_two_range_overload<char>/6 5.00 ns 3.83 ns
bm_mismatch_two_range_overload<char>/7 5.59 ns 4.35 ns
bm_mismatch_two_range_overload<char>/8 6.37 ns 4.84 ns
bm_mismatch_two_range_overload<char>/16 11.8 ns 6.72 ns
bm_mismatch_two_range_overload<char>/64 45.5 ns 2.59 ns
bm_mismatch_two_range_overload<char>/512 366 ns 12.6 ns
bm_mismatch_two_range_overload<char>/4096 2890 ns 91.6 ns
bm_mismatch_two_range_overload<char>/32768 23038 ns 758 ns
bm_mismatch_two_range_overload<char>/262144 142813 ns 6573 ns
bm_mismatch_two_range_overload<char>/1048576 366679 ns 26710 ns
bm_mismatch_two_range_overload<short>/1 0.934 ns 1.88 ns
bm_mismatch_two_range_overload<short>/2 1.30 ns 2.58 ns
bm_mismatch_two_range_overload<short>/3 1.76 ns 3.28 ns
bm_mismatch_two_range_overload<short>/4 2.24 ns 3.98 ns
bm_mismatch_two_range_overload<short>/5 2.80 ns 4.92 ns
bm_mismatch_two_range_overload<short>/6 3.58 ns 6.01 ns
bm_mismatch_two_range_overload<short>/7 4.29 ns 7.03 ns
bm_mismatch_two_range_overload<short>/8 4.67 ns 7.39 ns
bm_mismatch_two_range_overload<short>/16 9.86 ns 13.1 ns
bm_mismatch_two_range_overload<short>/64 38.9 ns 4.55 ns
bm_mismatch_two_range_overload<short>/512 348 ns 27.7 ns
bm_mismatch_two_range_overload<short>/4096 2881 ns 225 ns
bm_mismatch_two_range_overload<short>/32768 23111 ns 1715 ns
bm_mismatch_two_range_overload<short>/262144 184846 ns 14416 ns
bm_mismatch_two_range_overload<short>/1048576 742885 ns 57264 ns
bm_mismatch_two_range_overload<int>/1 0.838 ns 1.19 ns
bm_mismatch_two_range_overload<int>/2 1.19 ns 1.65 ns
bm_mismatch_two_range_overload<int>/3 1.83 ns 2.06 ns
bm_mismatch_two_range_overload<int>/4 2.38 ns 2.42 ns
bm_mismatch_two_range_overload<int>/5 3.60 ns 2.47 ns
bm_mismatch_two_range_overload<int>/6 3.68 ns 3.05 ns
bm_mismatch_two_range_overload<int>/7 4.32 ns 3.36 ns
bm_mismatch_two_range_overload<int>/8 5.18 ns 3.58 ns
bm_mismatch_two_range_overload<int>/16 10.6 ns 2.84 ns
bm_mismatch_two_range_overload<int>/64 39.0 ns 7.78 ns
bm_mismatch_two_range_overload<int>/512 247 ns 53.9 ns
bm_mismatch_two_range_overload<int>/4096 1927 ns 429 ns
bm_mismatch_two_range_overload<int>/32768 15569 ns 3393 ns
bm_mismatch_two_range_overload<int>/262144 125413 ns 28504 ns
bm_mismatch_two_range_overload<int>/1048576 504549 ns 112729 ns
```
2024-04-01 18:21:51 +02:00
Nikolas Klauser
1679b27959
[libc++] Refactor __tuple_like and __pair_like ( #85206 )
...
The exposition-only type trait `pair-like` includes `ranges::subrange`,
but in every single case excludes `ranges::subrange` from the list. This
patch introduces two new traits `__tuple_like_no_subrange` and
`__pair_like_no_subrange`, which exclude `ranges::subrange` from the
possible matches. `__pair_like` is no longer required, and thus removed.
`__tuple_like` is implemented as `__tuple_like_no_subrange` or a
`ranges::subrange` specialization.
2024-04-01 08:46:57 +02:00
Mark de Wever
6aa53888a8
[libc++][test] Improves src include paths. ( #86864 )
...
Instead of including a relative path use an absolute path based on the
available lit substitution. This makes it easier to understand what is
included and moving the test to a different directory level no longer
breaks the test.
This is based on a question by @EricWF in
https://github.com/llvm/llvm-project/pull/82113 .
2024-03-30 17:50:59 +01:00
Nikolas Klauser
beaff78528
[libc++] Optimize the std::mismatch tail ( #83440 )
...
This adds vectorization to the last 0-3 vectors and, if the range is
large enough, the remaining elements that don't fill a vector
completely.
```
-----------------------------------------------------------------------
Benchmark old full vectors partial vector
-----------------------------------------------------------------------
bm_mismatch<char>/1 1.40 ns 1.62 ns 2.09 ns
bm_mismatch<char>/2 1.88 ns 2.10 ns 2.33 ns
bm_mismatch<char>/3 2.67 ns 2.56 ns 2.72 ns
bm_mismatch<char>/4 3.01 ns 3.20 ns 3.70 ns
bm_mismatch<char>/5 3.51 ns 3.73 ns 3.64 ns
bm_mismatch<char>/6 4.71 ns 4.85 ns 4.37 ns
bm_mismatch<char>/7 5.12 ns 5.33 ns 4.37 ns
bm_mismatch<char>/8 5.79 ns 6.02 ns 4.75 ns
bm_mismatch<char>/15 9.20 ns 10.5 ns 7.23 ns
bm_mismatch<char>/16 10.2 ns 10.1 ns 7.46 ns
bm_mismatch<char>/17 10.2 ns 10.8 ns 7.57 ns
bm_mismatch<char>/31 17.6 ns 17.1 ns 10.8 ns
bm_mismatch<char>/32 17.4 ns 1.64 ns 1.64 ns
bm_mismatch<char>/33 23.3 ns 2.10 ns 2.33 ns
bm_mismatch<char>/63 31.8 ns 16.9 ns 2.33 ns
bm_mismatch<char>/64 32.6 ns 2.10 ns 2.10 ns
bm_mismatch<char>/65 33.6 ns 2.57 ns 2.80 ns
bm_mismatch<char>/127 67.3 ns 18.1 ns 3.27 ns
bm_mismatch<char>/128 2.17 ns 2.14 ns 2.57 ns
bm_mismatch<char>/129 2.36 ns 2.80 ns 3.27 ns
bm_mismatch<char>/255 67.5 ns 19.6 ns 4.68 ns
bm_mismatch<char>/256 3.76 ns 3.71 ns 3.97 ns
bm_mismatch<char>/257 3.77 ns 4.04 ns 4.43 ns
bm_mismatch<char>/511 70.8 ns 22.1 ns 7.47 ns
bm_mismatch<char>/512 7.27 ns 7.30 ns 6.95 ns
bm_mismatch<char>/513 7.11 ns 7.05 ns 6.96 ns
bm_mismatch<char>/1023 75.9 ns 27.4 ns 13.3 ns
bm_mismatch<char>/1024 13.9 ns 13.8 ns 12.4 ns
bm_mismatch<char>/1025 13.6 ns 13.6 ns 12.8 ns
bm_mismatch<char>/2047 87.3 ns 37.5 ns 25.4 ns
bm_mismatch<char>/2048 26.8 ns 27.4 ns 24.0 ns
bm_mismatch<char>/2049 26.7 ns 27.3 ns 25.5 ns
bm_mismatch<char>/4095 112 ns 64.7 ns 48.7 ns
bm_mismatch<char>/4096 53.0 ns 54.2 ns 46.8 ns
bm_mismatch<char>/4097 52.7 ns 54.2 ns 48.4 ns
bm_mismatch<char>/8191 160 ns 118 ns 98.4 ns
bm_mismatch<char>/8192 107 ns 108 ns 96.0 ns
bm_mismatch<char>/8193 106 ns 108 ns 97.2 ns
bm_mismatch<char>/16383 283 ns 234 ns 215 ns
bm_mismatch<char>/16384 227 ns 223 ns 217 ns
bm_mismatch<char>/16385 221 ns 221 ns 215 ns
bm_mismatch<char>/32767 547 ns 499 ns 488 ns
bm_mismatch<char>/32768 495 ns 492 ns 492 ns
bm_mismatch<char>/32769 491 ns 489 ns 488 ns
bm_mismatch<char>/65535 1028 ns 979 ns 971 ns
bm_mismatch<char>/65536 976 ns 970 ns 974 ns
bm_mismatch<char>/65537 970 ns 965 ns 971 ns
bm_mismatch<char>/131071 2031 ns 1948 ns 2005 ns
bm_mismatch<char>/131072 1973 ns 1955 ns 1974 ns
bm_mismatch<char>/131073 1989 ns 1932 ns 2001 ns
bm_mismatch<char>/262143 4469 ns 4244 ns 4223 ns
bm_mismatch<char>/262144 4443 ns 4183 ns 4243 ns
bm_mismatch<char>/262145 4400 ns 4232 ns 4246 ns
bm_mismatch<char>/524287 10169 ns 9733 ns 9592 ns
bm_mismatch<char>/524288 10154 ns 9664 ns 9843 ns
bm_mismatch<char>/524289 10113 ns 9641 ns 10003 ns
bm_mismatch<short>/1 1.86 ns 2.53 ns 2.32 ns
bm_mismatch<short>/2 2.57 ns 2.77 ns 2.55 ns
bm_mismatch<short>/3 3.26 ns 3.00 ns 2.79 ns
bm_mismatch<short>/4 3.95 ns 3.39 ns 3.15 ns
bm_mismatch<short>/5 4.83 ns 3.97 ns 3.72 ns
bm_mismatch<short>/6 5.43 ns 4.34 ns 4.03 ns
bm_mismatch<short>/7 6.11 ns 4.73 ns 4.44 ns
bm_mismatch<short>/8 6.84 ns 5.02 ns 4.79 ns
bm_mismatch<short>/15 11.5 ns 7.12 ns 6.50 ns
bm_mismatch<short>/16 13.9 ns 1.87 ns 2.11 ns
bm_mismatch<short>/17 14.0 ns 3.00 ns 2.47 ns
bm_mismatch<short>/31 23.1 ns 7.87 ns 2.47 ns
bm_mismatch<short>/32 23.8 ns 2.57 ns 2.81 ns
bm_mismatch<short>/33 24.5 ns 3.70 ns 2.94 ns
bm_mismatch<short>/63 44.8 ns 9.37 ns 3.46 ns
bm_mismatch<short>/64 2.32 ns 2.57 ns 2.64 ns
bm_mismatch<short>/65 2.52 ns 3.02 ns 3.51 ns
bm_mismatch<short>/127 45.6 ns 9.97 ns 5.18 ns
bm_mismatch<short>/128 3.85 ns 3.93 ns 3.94 ns
bm_mismatch<short>/129 3.82 ns 4.20 ns 4.70 ns
bm_mismatch<short>/255 50.4 ns 12.6 ns 8.07 ns
bm_mismatch<short>/256 7.23 ns 6.91 ns 6.98 ns
bm_mismatch<short>/257 7.24 ns 7.19 ns 7.55 ns
bm_mismatch<short>/511 52.3 ns 17.8 ns 14.0 ns
bm_mismatch<short>/512 13.6 ns 13.7 ns 13.6 ns
bm_mismatch<short>/513 13.9 ns 13.8 ns 18.5 ns
bm_mismatch<short>/1023 60.9 ns 30.9 ns 26.3 ns
bm_mismatch<short>/1024 26.7 ns 27.7 ns 25.7 ns
bm_mismatch<short>/1025 27.7 ns 27.6 ns 25.3 ns
bm_mismatch<short>/2047 88.4 ns 58.0 ns 51.6 ns
bm_mismatch<short>/2048 52.8 ns 55.3 ns 50.6 ns
bm_mismatch<short>/2049 55.2 ns 54.8 ns 48.7 ns
bm_mismatch<short>/4095 153 ns 113 ns 102 ns
bm_mismatch<short>/4096 105 ns 110 ns 101 ns
bm_mismatch<short>/4097 110 ns 110 ns 99.1 ns
bm_mismatch<short>/8191 277 ns 219 ns 206 ns
bm_mismatch<short>/8192 226 ns 214 ns 250 ns
bm_mismatch<short>/8193 226 ns 207 ns 208 ns
bm_mismatch<short>/16383 519 ns 492 ns 488 ns
bm_mismatch<short>/16384 494 ns 492 ns 492 ns
bm_mismatch<short>/16385 492 ns 488 ns 489 ns
bm_mismatch<short>/32767 1007 ns 968 ns 964 ns
bm_mismatch<short>/32768 977 ns 972 ns 970 ns
bm_mismatch<short>/32769 972 ns 962 ns 967 ns
bm_mismatch<short>/65535 1978 ns 1918 ns 1956 ns
bm_mismatch<short>/65536 1940 ns 1927 ns 1970 ns
bm_mismatch<short>/65537 1937 ns 1922 ns 1959 ns
bm_mismatch<short>/131071 4524 ns 4193 ns 4304 ns
bm_mismatch<short>/131072 4445 ns 4196 ns 4306 ns
bm_mismatch<short>/131073 4452 ns 4278 ns 4311 ns
bm_mismatch<short>/262143 9801 ns 10188 ns 9634 ns
bm_mismatch<short>/262144 9738 ns 10151 ns 9651 ns
bm_mismatch<short>/262145 9716 ns 10171 ns 9715 ns
bm_mismatch<short>/524287 19944 ns 20718 ns 20044 ns
bm_mismatch<short>/524288 21139 ns 20647 ns 20008 ns
bm_mismatch<short>/524289 21162 ns 19512 ns 20068 ns
bm_mismatch<int>/1 1.40 ns 1.84 ns 1.87 ns
bm_mismatch<int>/2 1.87 ns 2.08 ns 2.09 ns
bm_mismatch<int>/3 2.36 ns 2.31 ns 2.87 ns
bm_mismatch<int>/4 3.06 ns 2.72 ns 2.95 ns
bm_mismatch<int>/5 3.66 ns 3.37 ns 3.42 ns
bm_mismatch<int>/6 4.55 ns 3.65 ns 3.73 ns
bm_mismatch<int>/7 5.03 ns 3.93 ns 3.94 ns
bm_mismatch<int>/8 5.67 ns 1.86 ns 1.87 ns
bm_mismatch<int>/15 9.89 ns 4.41 ns 2.34 ns
bm_mismatch<int>/16 10.1 ns 2.33 ns 2.34 ns
bm_mismatch<int>/17 10.2 ns 3.34 ns 2.86 ns
bm_mismatch<int>/31 17.2 ns 5.54 ns 3.28 ns
bm_mismatch<int>/32 2.16 ns 2.15 ns 2.58 ns
bm_mismatch<int>/33 2.36 ns 3.01 ns 3.28 ns
bm_mismatch<int>/63 17.7 ns 6.50 ns 4.93 ns
bm_mismatch<int>/64 3.81 ns 3.58 ns 3.90 ns
bm_mismatch<int>/65 3.74 ns 4.36 ns 4.45 ns
bm_mismatch<int>/127 19.5 ns 9.56 ns 7.74 ns
bm_mismatch<int>/128 7.30 ns 6.41 ns 6.85 ns
bm_mismatch<int>/129 7.09 ns 7.04 ns 7.06 ns
bm_mismatch<int>/255 24.7 ns 14.8 ns 13.3 ns
bm_mismatch<int>/256 14.0 ns 12.1 ns 12.3 ns
bm_mismatch<int>/257 13.8 ns 12.7 ns 12.8 ns
bm_mismatch<int>/511 34.3 ns 26.3 ns 24.8 ns
bm_mismatch<int>/512 27.6 ns 23.6 ns 23.9 ns
bm_mismatch<int>/513 27.3 ns 24.4 ns 25.1 ns
bm_mismatch<int>/1023 62.5 ns 50.9 ns 48.3 ns
bm_mismatch<int>/1024 54.4 ns 46.1 ns 46.6 ns
bm_mismatch<int>/1025 54.2 ns 48.4 ns 47.5 ns
bm_mismatch<int>/2047 116 ns 97.8 ns 94.1 ns
bm_mismatch<int>/2048 108 ns 92.6 ns 92.4 ns
bm_mismatch<int>/2049 108 ns 104 ns 94.0 ns
bm_mismatch<int>/4095 233 ns 222 ns 205 ns
bm_mismatch<int>/4096 226 ns 223 ns 225 ns
bm_mismatch<int>/4097 221 ns 219 ns 210 ns
bm_mismatch<int>/8191 499 ns 485 ns 488 ns
bm_mismatch<int>/8192 496 ns 490 ns 495 ns
bm_mismatch<int>/8193 491 ns 485 ns 488 ns
bm_mismatch<int>/16383 982 ns 962 ns 964 ns
bm_mismatch<int>/16384 974 ns 971 ns 971 ns
bm_mismatch<int>/16385 971 ns 961 ns 968 ns
bm_mismatch<int>/32767 2003 ns 1959 ns 1920 ns
bm_mismatch<int>/32768 1996 ns 1947 ns 1928 ns
bm_mismatch<int>/32769 1990 ns 1945 ns 1926 ns
bm_mismatch<int>/65535 4434 ns 4275 ns 4312 ns
bm_mismatch<int>/65536 4437 ns 4267 ns 4321 ns
bm_mismatch<int>/65537 4442 ns 4261 ns 4321 ns
bm_mismatch<int>/131071 9673 ns 9648 ns 9465 ns
bm_mismatch<int>/131072 9667 ns 9671 ns 9465 ns
bm_mismatch<int>/131073 9661 ns 9653 ns 9464 ns
bm_mismatch<int>/262143 20595 ns 19605 ns 19064 ns
bm_mismatch<int>/262144 19894 ns 19572 ns 19009 ns
bm_mismatch<int>/262145 19851 ns 19656 ns 18999 ns
bm_mismatch<int>/524287 39556 ns 39364 ns 38131 ns
bm_mismatch<int>/524288 39678 ns 39573 ns 38183 ns
bm_mismatch<int>/524289 40168 ns 39301 ns 38121 ns
```
2024-03-29 19:29:54 +01:00
Nikolas Klauser
316634ff59
[libc++] Remove <queue> and <stack> includes from <format> ( #85520 )
...
This reduces the include time of <format> from 691ms to 556ms.
2024-03-29 12:06:09 +01:00
zibi2
6e6d266fb8
[libc++] Fix one case in saturate_cast.pass.cpp for 64-bit on z/OS ( #86724 )
...
On z/OS int128 is disabled causing one of the cases in
`saturate_cast.pass.cpp` to fail. The failure is only in 64-bit mode.
In this case `the std::numeric_limits<long long int>::max()` is within
`std::numeric_limits<unsigned long int>::min()`
and `std::numeric_limits<unsigned long int>::max()` therefore,
saturate_cast<unsigned long int>( sBigMax) == LONG_MAX and not ULONG_MAX
as original test.
In 32-bit, `saturate_cast<unsigned long int>( sBigMax) == ULONG_MAX`
like on other platforms where int128 is enabled.
This PR is required to pass this test case on z/OS and possibly on other
platforms where int128 is not supported/enabled.
---------
Co-authored-by: Sean Perry <perry@ca.ibm.com >
2024-03-27 09:50:25 -04:00
Hui
dfde6e89ec
[libc++][test] Remove tests that testing std::variant<T&> ( #84222 )
...
Fixes #83600
2024-03-26 09:39:20 -04:00
ZhangYin
5c663aa9ae
[libc++] <experimental/simd> Reduce types for template parameter U in tests ( #83781 )
2024-03-26 14:38:20 +08:00
Hui
81e2693c12
[libc++][test] Fix race condition in condition_variable_any tests ( #84788 )
...
Some tests in `condition_variable_any` use two `shared_lock` to guard,
which does not work.
The fix is to make the writer to use `unique_lock`
2024-03-24 20:52:47 +00:00
Nikolas Klauser
b68e2eba0b
[libc++] Vectorize mismatch ( #73255 )
...
```
---------------------------------------------------
Benchmark old new
---------------------------------------------------
bm_mismatch<char>/1 0.835 ns 2.37 ns
bm_mismatch<char>/2 1.44 ns 2.60 ns
bm_mismatch<char>/3 2.06 ns 2.83 ns
bm_mismatch<char>/4 2.60 ns 3.29 ns
bm_mismatch<char>/5 3.15 ns 3.77 ns
bm_mismatch<char>/6 3.82 ns 4.17 ns
bm_mismatch<char>/7 4.29 ns 4.52 ns
bm_mismatch<char>/8 4.78 ns 4.86 ns
bm_mismatch<char>/16 9.06 ns 7.54 ns
bm_mismatch<char>/64 31.7 ns 19.1 ns
bm_mismatch<char>/512 249 ns 8.16 ns
bm_mismatch<char>/4096 1956 ns 44.2 ns
bm_mismatch<char>/32768 15498 ns 501 ns
bm_mismatch<char>/262144 123965 ns 4479 ns
bm_mismatch<char>/1048576 495668 ns 21306 ns
bm_mismatch<short>/1 0.710 ns 2.12 ns
bm_mismatch<short>/2 1.03 ns 2.66 ns
bm_mismatch<short>/3 1.29 ns 3.56 ns
bm_mismatch<short>/4 1.68 ns 4.29 ns
bm_mismatch<short>/5 1.96 ns 5.18 ns
bm_mismatch<short>/6 2.59 ns 5.91 ns
bm_mismatch<short>/7 2.86 ns 6.63 ns
bm_mismatch<short>/8 3.19 ns 7.33 ns
bm_mismatch<short>/16 5.48 ns 13.0 ns
bm_mismatch<short>/64 16.6 ns 4.06 ns
bm_mismatch<short>/512 130 ns 13.8 ns
bm_mismatch<short>/4096 985 ns 93.8 ns
bm_mismatch<short>/32768 7846 ns 1002 ns
bm_mismatch<short>/262144 63217 ns 10637 ns
bm_mismatch<short>/1048576 251782 ns 42471 ns
bm_mismatch<int>/1 0.716 ns 1.91 ns
bm_mismatch<int>/2 1.21 ns 2.49 ns
bm_mismatch<int>/3 1.38 ns 3.46 ns
bm_mismatch<int>/4 1.71 ns 4.04 ns
bm_mismatch<int>/5 2.00 ns 4.98 ns
bm_mismatch<int>/6 2.43 ns 5.67 ns
bm_mismatch<int>/7 3.05 ns 6.38 ns
bm_mismatch<int>/8 3.22 ns 7.09 ns
bm_mismatch<int>/16 5.18 ns 12.8 ns
bm_mismatch<int>/64 16.6 ns 5.28 ns
bm_mismatch<int>/512 129 ns 25.2 ns
bm_mismatch<int>/4096 1009 ns 201 ns
bm_mismatch<int>/32768 7776 ns 2144 ns
bm_mismatch<int>/262144 62371 ns 20551 ns
bm_mismatch<int>/1048576 254750 ns 90097 ns
```
2024-03-23 15:28:22 +01:00
yronglin
31a9a4b837
[libc++] Implement LWG3528 (make_from_tuple can perform (the equivalent of) a C-style cast) ( #85263 )
...
Implement [LWG3528](https://wg21.link/LWG3528 ).
Based on LWG3528(https://wg21.link/LWG3528 ) and
http://eel.is/c++draft/description#structure.requirements-9 , the
standard allows to impose requirements, we constraint
`std::make_from_tuple` to make `std::make_from_tuple` SFINAE friendly
and also avoid worse diagnostic messages. We still keep the constraints
of `std::__make_from_tuple_impl` so that `std::__make_from_tuple_impl`
will have the same advantages when used alone.
---------
Signed-off-by: yronglin <yronglin777@gmail.com >
2024-03-22 20:45:17 +08:00
Ilya Biryukov
4bf8dc1a0f
[libc++] Remove macros for keeping std::allocator members and void specialization after C++20 ( #85806 )
...
Fixes #75975 .
Remove `_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS` for the LLVM 19
release, it was previously marked as deprecated in LLVM 18.
I believe that
`_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_VOID_SPECIALIZATION` was only
used by Google in conjunction with
`_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_MEMBERS`.
Removing both macros together should not cause any issues in practice,
even though we did not announce the removal of
`_LIBCPP_ENABLE_CXX20_REMOVED_ALLOCATOR_VOID_SPECIALIZATION` before.
2024-03-21 17:48:13 +01:00
Mark de Wever
8779edb8b3
[libc++] Deprecates std::errc constants. ( #80542 )
...
Implements:
- LWG3869 Deprecate std::errc constants related to UNIX STREAMS
2024-03-21 12:14:24 +01:00
Mark de Wever
22f20564a8
[libc++][CI] Reenables the module tests. ( #85799 )
...
These were disabled due to ODR violations with mixed versions of
clang-tidy and the clang libraries. This issue was fixed in
e19e8600cf0bbada93a5
2024-03-20 11:32:51 +01:00
Xiaoyang Liu
cf09b7dec4
[libc++][ranges] LWG3715: view_interface::empty is overconstrained ( #85004 )
...
## Abstract
This pull request implements LWG3715: `view_interface::empty` is
overconstrained. Here is an example similar to those described in the
report, which compiles with `-stdlib=libstdc++` but failed to compile
with `-stdlib=libc++`:
```cpp
// https://godbolt.org/z/EWEoTzah3
std::istringstream input("1 2 3 4 5");
auto i = std::views::istream<int>(input);
auto r = std::views::counted(i.begin(), 4) | std::views::take(2);
assert(!r.empty());
```
## Reference
- [Draft C++ Standard:
[view.interface.general]](https://eel.is/c++draft/view.interface.general )
- [LWG3715](https://wg21.link/LWG3715 )
2024-03-20 09:47:40 +01:00
Mark de Wever
11dd881b9c
[libc++][format] Fixes nested concept evaluation. ( #85548 )
...
Before the __formattable concept depended on itself in a contrieved
example. By using the underlying concept directly the cycle is broken.
Fixes https://github.com/llvm/llvm-project/issues/81590
2024-03-20 09:45:12 +01:00
Mark de Wever
f804217155
Revert "[libc++][CMake] Removes LIBCXX_ENABLE_CLANG_TIDY. ( #85262 )"
...
This reverts commit 4109b18ee5https://github.com/llvm/llvm-project/pull/85262
2024-03-18 17:13:56 +01:00
Mark de Wever
4109b18ee5
[libc++][CMake] Removes LIBCXX_ENABLE_CLANG_TIDY. ( #85262 )
...
The clang-tidy selection in CMake was refactored in
https://github.com/llvm/llvm-project/pull/81362 . During review it was
suggested to remove this CMake option.
2024-03-18 14:32:30 +01:00
Nikolas Klauser
4ea850b52f
[libc++] Remove __unconstrained_reverse_iterator ( #85582 )
...
`__unconstrained_reverse_iterator` has outlived its usefullness, since
the standard and subsequently the compilers have been fixed.
2024-03-18 14:19:51 +01:00
Nikolas Klauser
a10aa4485e
[libc++] Simplify the implementation of remove_reference ( #85207 )
...
GCC 13 introduced the type trait `__remove_reference`. We can simplify
the implementation of `remove_reference` a bit by using it.
2024-03-18 13:57:07 +01:00
Rodrigo Salazar
4c5bc76677
[libcxx][test] Create feature host-can-create-symlinks ( #82204 )
...
On Windows you can not create symlinks without elevated privileges
unless you have Windows developer mode enabled. There's ~67 libcxx tests
that run into failures on windows if your environment is not set up
correctly (Go to windows settings and enable "developer mode").
This change:
- Adds a feature check for whether the host can create symlinks. (see
libcxx/utils/libcxx/test/features.py)
- Mark the feature as required for the 67 tests that hit failures on
windows due to this. This will allow lit to correctly mark these tests
as unsupported instead of unexpectedly failed (this is helpful since
then you know you didn't break something with your change, it's just
that it's not supported with your environment).
2024-03-18 12:53:54 +01:00
Nikolas Klauser
07b18c5e1b
[libc++] Optimize ranges::fill{,_n} for vector<bool>::iterator ( #84642 )
...
```
------------------------------------------------------
Benchmark old new
------------------------------------------------------
bm_ranges_fill_n/1 1.64 ns 3.06 ns
bm_ranges_fill_n/2 3.45 ns 3.06 ns
bm_ranges_fill_n/3 4.88 ns 3.06 ns
bm_ranges_fill_n/4 6.46 ns 3.06 ns
bm_ranges_fill_n/5 8.03 ns 3.06 ns
bm_ranges_fill_n/6 9.65 ns 3.07 ns
bm_ranges_fill_n/7 11.5 ns 3.06 ns
bm_ranges_fill_n/8 13.0 ns 3.06 ns
bm_ranges_fill_n/16 25.9 ns 3.06 ns
bm_ranges_fill_n/64 103 ns 4.62 ns
bm_ranges_fill_n/512 711 ns 4.40 ns
bm_ranges_fill_n/4096 5642 ns 9.86 ns
bm_ranges_fill_n/32768 45135 ns 33.6 ns
bm_ranges_fill_n/262144 360818 ns 243 ns
bm_ranges_fill_n/1048576 1442828 ns 982 ns
bm_ranges_fill/1 1.63 ns 3.17 ns
bm_ranges_fill/2 3.43 ns 3.28 ns
bm_ranges_fill/3 4.97 ns 3.31 ns
bm_ranges_fill/4 6.53 ns 3.27 ns
bm_ranges_fill/5 8.12 ns 3.33 ns
bm_ranges_fill/6 9.76 ns 3.32 ns
bm_ranges_fill/7 11.6 ns 3.29 ns
bm_ranges_fill/8 13.2 ns 3.26 ns
bm_ranges_fill/16 26.3 ns 3.26 ns
bm_ranges_fill/64 104 ns 4.92 ns
bm_ranges_fill/512 716 ns 4.47 ns
bm_ranges_fill/4096 5772 ns 8.21 ns
bm_ranges_fill/32768 45778 ns 33.1 ns
bm_ranges_fill/262144 351422 ns 241 ns
bm_ranges_fill/1048576 1404710 ns 965 ns
```
2024-03-17 20:00:54 +01:00
Mark de Wever
0847c903c8
Revert "[libc++] Fix tests on musl ( #85085 )"
...
This reverts commit b61fb18456https://buildkite.com/llvm-project/libcxx-ci/builds/34153
2024-03-16 20:22:49 +01:00
Nikolas Klauser
f694f632d9
[libc++] Add <locale> include in <chrono> ( #85521 )
...
I accidentally removed this transitive include in #85478 .
2024-03-16 16:40:36 +01:00
Nikolas Klauser
5bcb78141c
[libc++] Remove <locale> includes from <format> ( #85478 )
...
This reduces the include time from 767ms to 691ms.
2024-03-16 13:45:24 +01:00
Jakub Mazurkiewicz
12978b3e23
[libc++] P2602R2 Poison Pills are Too Toxic ( #74534 )
...
Implements [P2602R2 Poison Pills are Too
Toxic](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2602r2.html )
as a DR in C++20 mode.
2024-03-16 12:16:36 +00:00
Marc Auberer
864a886105
[libc++] Add [[nodiscard]] to static numeric limit functions ( #83748 )
...
Fixes #83695
2024-03-15 17:19:58 +01:00
Mark de Wever
abe292f9f8
[libc++] Enables TZDB tests. ( #82108 )
...
With the timezone information available in the CI these tests can be
enabled again.
Fixes: https://github.com/llvm/llvm-project/issues/81654
2024-03-15 08:17:08 +01:00
