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4463 Commits

Author SHA1 Message Date
Nikolas Klauser
1f5d698a8b [libc++] Add missing include in __format/unicode.h 2023-01-09 16:37:31 +01:00
Louis Dionne
5efc81166d [libc++] Remove HIDE_FROM_ABI from virtual functions 
_LIBCPP_HIDE_FROM_ABI (which is what _LIBCPP_INLINE_VISIBILITY is) uses
ABI tags to avoid ODR violations when linking together object files
compiled against different versions of libc++. However, pointer
authentication uses the mangled name of the function to sign the
function pointer in the vtable, which means that the ABI tag effectively
changes how the pointers are signed.

This leads to PAC failures when passing an object that holds one of these
pointers in its vtable across an ABI boundary: one side will sign the
pointer using one function mangling (with one ABI tag), and the other
side will authenticate the pointer expecting it to have a different
mangled name, which won't work.

To make sure this does not regress in the future, this patch also adds
a clang-query test to detect incorrect applications of _LIBCPP_HIDE_FROM_ABI.

Differential Revision: https://reviews.llvm.org/D140453
 2023-01-09 10:29:42 -05:00
Nikolas Klauser
02fc82c380 [libc++] Add _LIBCPP_HIDE_FROM_ABI to __constexpr_logb and __constexpr_scalbn 2023-01-09 01:17:18 +01:00
Nikolas Klauser
86aac87fe4 [libc++] Granularize <bit> and remove <__bits> 
Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D141225
 2023-01-08 17:01:21 +01:00
Mark de Wever
0c731b0c00 [libc++][CI] Fixes robust against ADL for C++03. 
This was disabled in D139545.

Reviewed By: philnik, #libc

Differential Revision: https://reviews.llvm.org/D140731
 2023-01-08 16:43:23 +01:00
Marek Kurdej
7223bcf04c [libc++] [C++20] [P0415] Constexpr for std::complex. 
This patch adds constexpr to <complex> header: operators, member operators, and member functions (real, imag, norm, conj).

https://eel.is/c++draft/complex.numbers
https://wg21.link/p0415

Reviewed By: ldionne, #libc

Spies: philnik, danilaml, Quuxplusone, wmaxey, arichardson, libcxx-commits

Differential Revision: https://reviews.llvm.org/D79555
 2023-01-08 15:46:51 +01:00
Sylvestre Ledru
fc87452916 libc++: bring back the unsigned in the return type in wcstoull_l 
got remove here:
67b0b02ec9 (diff-e41832b8aa26da45585a57c5111531f2e1d07e91a67c4f8bf1cd6d566ae45a2bR42)

Differential Revision: https://reviews.llvm.org/D141208
 2023-01-08 12:28:14 +01:00
Backl1ght
1920c7947a [libc++] remove weird empty line 
Differential Revision: https://reviews.llvm.org/D141181
 2023-01-07 17:19:16 +08:00
Vitaly Buka
d19fbfed47 [libcxx] Fix build with GLIBC 
Reviewed By: #libc, philnik

Differential Revision: https://reviews.llvm.org/D140946
 2023-01-03 23:55:55 -08:00
Mark de Wever
77df8d38d2 [NFC][libc++] Replaces tabs by spaces. 2022-12-28 18:11:43 +01:00
Mark de Wever
243b1e97d6 [NFC][libc++] Fixes ADL calls. 2022-12-28 17:04:43 +01:00
Weverything
0c6e74fa74 [libc++] Remove self-include from header file NFC 2022-12-27 15:29:29 -08:00
Nikolas Klauser
430b397f67 [libc++] Granularize <type_traits> includes in <iterator> 
Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D140621
 2022-12-27 02:32:16 +01:00
Nikolas Klauser
52bff450dd [libc++] Implement constexpr {isfinite, isinf, isnan, isnormal} 
This starts implementing P0533

Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D140277
 2022-12-25 20:14:29 +01:00
Mark de Wever
105fef5dca [libc++][chrono] Add calendar type formatters. 
Some of the calendar types have landed before, this adds the missing
set. Note this does not complete the implementation of the chrono
formatters.

This removes the `chrono` header for some transitive include in C++17
mode. This is needed to avoid inclusion cycles.

Partially implements:
- P1361 Integration of chrono with text formatting
- P2372 Fixing locale handling in chrono formatters

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D137022
 2022-12-24 15:11:41 +01:00
Mark de Wever
0edc92e6e0 [libc++] LWG3738 Validates a missing precondition. 
No real changes were needed, but add an assert for the pre-condition.

This implements:
- 3738 Missing preconditions for take_view constructor

Reviewed By: #libc, philnik

Differential Revision: https://reviews.llvm.org/D140568
 2022-12-23 17:20:57 +01:00
Mark de Wever
83c1816224 [libc++] LWG3745 noexcept for atomic_wait. 
The noexcept was already implemented, this only updates the synposis and
adds tests to validate that the functions are noexcept.

This implements:
- LWG3745 std::atomic_wait and its friends lack noexcept

Reviewed By: #libc, philnik

Differential Revision: https://reviews.llvm.org/D140575
 2022-12-23 17:17:00 +01:00
Nikolas Klauser
841399a218 [libc++] Add custom clang-tidy checks 
Reviewed By: #libc, ldionne

Spies: jwakely, beanz, smeenai, cfe-commits, tschuett, avogelsgesang, Mordante, sstefan1, libcxx-commits, ldionne, mgorny, arichardson, miyuki

Differential Revision: https://reviews.llvm.org/D131963
 2022-12-23 15:42:13 +01:00
Nikolas Klauser
e0a66116fc [libc++] Granularize <type_traits> includes in <compare> 
Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D140480
 2022-12-23 02:58:06 +01:00
Nilay Vaish
4eddbf9f10 std::sort: add BlockQuickSort partitioning algorithm for arithmetic types 
This diff modifies std::sort in two ways:

* for arithmetic types we update the core partitioning algorithm to use
BlockQuickSort for partitioning. The partition function was carefully
written to let the compiler generates SIMD instructions without actually
writing SIMD intrinsics in the loop. We see up to 50% better performance
for sorting arithmetic types. The use of the BlockQuickSort partitioning
has been limited to arithmetic types since the algorithm works well when
branch instructions can be avoided during partitioning. This usually not
true for types other than the arithmetic ones.

* for other types (tuples, strings) updates have been made to improve
performance by about 10%.  Performance numbers comparing std::sort (old)
and Bitset sort (new) on libcxx benchmark.

name                                                             old cpu/op  new cpu/op  delta
BM_Sort_uint32_Random_1                                          3.72ns ± 5%  3.78ns ±16%      ~     (p=0.819 n=36+34)
BM_Sort_uint32_Random_4                                          5.42ns ± 5%  5.29ns ± 7%    -2.42%  (p=0.000 n=35+31)
BM_Sort_uint32_Random_16                                         10.5ns ± 3%  11.9ns ±15%   +13.08%  (p=0.000 n=36+40)
BM_Sort_uint32_Random_64                                         18.6ns ± 7%  18.5ns ±15%    -0.95%  (p=0.002 n=33+40)
BM_Sort_uint32_Random_256                                        26.2ns ± 4%  21.3ns ± 8%   -18.89%  (p=0.000 n=37+34)
BM_Sort_uint32_Random_1024                                       33.4ns ± 5%  23.3ns ± 4%   -30.37%  (p=0.000 n=39+35)
BM_Sort_uint32_Random_16384                                      47.7ns ± 5%  26.7ns ± 5%   -44.06%  (p=0.000 n=39+35)
BM_Sort_uint32_Random_262144                                     62.6ns ± 3%  30.1ns ± 6%   -51.81%  (p=0.000 n=37+36)
BM_Sort_uint32_Ascending_1                                       3.71ns ± 3%  4.28ns ± 3%   +15.53%  (p=0.000 n=37+35)
BM_Sort_uint32_Ascending_4                                       1.47ns ± 3%  1.46ns ± 3%      ~     (p=0.083 n=36+37)
BM_Sort_uint32_Ascending_16                                      0.93ns ± 4%  1.02ns ± 3%    +9.32%  (p=0.000 n=36+36)
BM_Sort_uint32_Ascending_64                                      1.23ns ± 5%  1.51ns ± 3%   +22.56%  (p=0.000 n=34+36)
BM_Sort_uint32_Ascending_256                                     1.21ns ± 3%  1.57ns ± 4%   +29.77%  (p=0.000 n=33+35)
BM_Sort_uint32_Ascending_1024                                    1.03ns ± 4%  1.43ns ± 3%   +38.44%  (p=0.000 n=32+35)
BM_Sort_uint32_Ascending_16384                                   0.94ns ± 8%  1.36ns ± 5%   +44.09%  (p=0.000 n=32+35)
BM_Sort_uint32_Ascending_262144                                  0.93ns ± 3%  1.35ns ± 7%   +45.06%  (p=0.000 n=32+36)
BM_Sort_uint32_Descending_1                                      3.69ns ± 2%  4.27ns ± 3%   +15.73%  (p=0.000 n=31+36)
BM_Sort_uint32_Descending_4                                      1.74ns ± 2%  1.78ns ± 3%    +2.29%  (p=0.000 n=31+38)
BM_Sort_uint32_Descending_16                                     3.92ns ± 4%  4.20ns ± 4%    +7.13%  (p=0.000 n=32+38)
BM_Sort_uint32_Descending_64                                     2.09ns ± 4%  3.25ns ± 4%   +55.10%  (p=0.000 n=33+37)
BM_Sort_uint32_Descending_256                                    1.98ns ± 7%  2.93ns ± 4%   +47.95%  (p=0.000 n=34+36)
BM_Sort_uint32_Descending_1024                                   2.23ns ± 6%  2.64ns ± 3%   +18.22%  (p=0.000 n=34+38)
BM_Sort_uint32_Descending_16384                                  1.93ns ± 6%  2.43ns ± 4%   +25.99%  (p=0.000 n=34+35)
BM_Sort_uint32_Descending_262144                                 1.89ns ± 3%  2.38ns ± 4%   +25.41%  (p=0.000 n=33+35)
BM_Sort_uint32_SingleElement_1                                   3.67ns ± 2%  4.28ns ± 4%   +16.60%  (p=0.000 n=34+34)
BM_Sort_uint32_SingleElement_4                                   1.48ns ± 4%  1.48ns ± 5%      ~     (p=0.951 n=35+33)
BM_Sort_uint32_SingleElement_16                                  0.93ns ± 3%  1.02ns ± 4%    +9.51%  (p=0.000 n=36+33)
BM_Sort_uint32_SingleElement_64                                  0.76ns ± 3%  1.59ns ± 8%  +109.78%  (p=0.000 n=36+32)
BM_Sort_uint32_SingleElement_256                                 0.82ns ± 4%  1.45ns ± 5%   +76.62%  (p=0.000 n=37+34)
BM_Sort_uint32_SingleElement_1024                                0.77ns ± 4%  1.31ns ± 4%   +71.40%  (p=0.000 n=34+34)
BM_Sort_uint32_SingleElement_16384                               0.64ns ± 4%  1.24ns ± 6%   +93.29%  (p=0.000 n=35+36)
BM_Sort_uint32_SingleElement_262144                              0.63ns ± 3%  1.23ns ± 4%   +95.17%  (p=0.000 n=35+35)
BM_Sort_uint32_PipeOrgan_1                                       3.68ns ± 2%  4.42ns ± 3%   +20.31%  (p=0.000 n=34+36)
BM_Sort_uint32_PipeOrgan_4                                       1.54ns ± 3%  1.53ns ± 3%      ~     (p=0.128 n=34+36)
BM_Sort_uint32_PipeOrgan_16                                      2.22ns ± 3%  1.99ns ± 3%   -10.28%  (p=0.000 n=33+36)
BM_Sort_uint32_PipeOrgan_64                                      4.41ns ± 3%  3.39ns ± 4%   -23.17%  (p=0.000 n=35+37)
BM_Sort_uint32_PipeOrgan_256                                     2.75ns ± 5%  3.07ns ± 3%   +11.74%  (p=0.000 n=37+37)
BM_Sort_uint32_PipeOrgan_1024                                    3.58ns ± 2%  5.48ns ± 3%   +52.97%  (p=0.000 n=37+36)
BM_Sort_uint32_PipeOrgan_16384                                   4.10ns ± 3%  6.53ns ± 3%   +59.27%  (p=0.000 n=37+37)
BM_Sort_uint32_PipeOrgan_262144                                  4.90ns ± 3%  7.39ns ± 3%   +50.71%  (p=0.000 n=34+37)
BM_Sort_uint32_QuickSortAdversary_1                              3.68ns ± 2%  4.28ns ± 3%   +16.19%  (p=0.000 n=36+37)
BM_Sort_uint32_QuickSortAdversary_4                              1.46ns ± 4%  1.46ns ± 3%      ~     (p=0.736 n=35+38)
BM_Sort_uint32_QuickSortAdversary_16                             0.93ns ± 3%  1.02ns ± 4%    +9.69%  (p=0.000 n=36+37)
BM_Sort_uint32_QuickSortAdversary_64                             13.6ns ± 4%  17.9ns ± 8%   +31.37%  (p=0.000 n=36+35)
BM_Sort_uint32_QuickSortAdversary_256                            20.0ns ± 4%  25.7ns ± 4%   +28.69%  (p=0.000 n=36+35)
BM_Sort_uint32_QuickSortAdversary_1024                           28.3ns ± 6%  31.7ns ± 3%   +12.12%  (p=0.000 n=36+37)
BM_Sort_uint32_QuickSortAdversary_16384                          45.8ns ± 3%  50.6ns ± 4%   +10.32%  (p=0.000 n=38+36)
BM_Sort_uint32_QuickSortAdversary_262144                         61.6ns ± 4%  68.2ns ± 4%   +10.68%  (p=0.000 n=37+37)
BM_Sort_uint64_Random_1                                          3.71ns ± 4%  4.00ns ± 4%    +7.93%  (p=0.000 n=34+35)
BM_Sort_uint64_Random_4                                          5.52ns ± 8%  5.22ns ± 6%    -5.41%  (p=0.000 n=32+32)
BM_Sort_uint64_Random_16                                         10.7ns ±15%  10.2ns ± 7%      ~     (p=0.077 n=40+31)
BM_Sort_uint64_Random_64                                         19.0ns ±14%  18.2ns ±14%    -4.31%  (p=0.001 n=40+40)
BM_Sort_uint64_Random_256                                        25.7ns ± 9%  22.1ns ±15%   -13.82%  (p=0.000 n=33+40)
BM_Sort_uint64_Random_1024                                       32.4ns ± 6%  23.8ns ±16%   -26.64%  (p=0.000 n=33+40)
BM_Sort_uint64_Random_16384                                      46.8ns ± 3%  27.1ns ±16%   -42.15%  (p=0.000 n=33+40)
BM_Sort_uint64_Random_262144                                     61.3ns ± 4%  30.4ns ±16%   -50.34%  (p=0.000 n=34+40)
BM_Sort_uint64_Ascending_1                                       3.67ns ± 3%  3.87ns ±16%    +5.36%  (p=0.049 n=35+40)
BM_Sort_uint64_Ascending_4                                       1.46ns ± 3%  1.46ns ± 3%      ~     (p=0.130 n=37+31)
BM_Sort_uint64_Ascending_16                                      1.09ns ± 3%  0.91ns ± 6%   -16.79%  (p=0.000 n=38+32)
BM_Sort_uint64_Ascending_64                                      1.25ns ± 3%  1.29ns ± 5%    +3.11%  (p=0.000 n=38+34)
BM_Sort_uint64_Ascending_256                                     1.37ns ± 3%  1.42ns ± 3%    +3.07%  (p=0.000 n=39+35)
BM_Sort_uint64_Ascending_1024                                    1.12ns ± 3%  1.17ns ± 3%    +5.28%  (p=0.000 n=37+36)
BM_Sort_uint64_Ascending_16384                                   0.98ns ± 3%  1.09ns ± 3%   +10.95%  (p=0.000 n=36+37)
BM_Sort_uint64_Ascending_262144                                  0.98ns ± 3%  1.08ns ± 3%   +10.97%  (p=0.000 n=36+37)
BM_Sort_uint64_Descending_1                                      3.68ns ± 3%  3.67ns ± 3%      ~     (p=0.652 n=36+36)
BM_Sort_uint64_Descending_4                                      1.71ns ± 3%  1.73ns ± 3%    +1.50%  (p=0.000 n=33+34)
BM_Sort_uint64_Descending_16                                     4.96ns ± 2%  5.49ns ± 3%   +10.73%  (p=0.000 n=31+36)
BM_Sort_uint64_Descending_64                                     2.14ns ± 6%  3.03ns ± 3%   +41.72%  (p=0.000 n=32+35)
BM_Sort_uint64_Descending_256                                    2.03ns ± 4%  2.86ns ± 4%   +40.55%  (p=0.000 n=32+34)
BM_Sort_uint64_Descending_1024                                   2.20ns ± 2%  2.29ns ± 3%    +4.20%  (p=0.000 n=31+36)
BM_Sort_uint64_Descending_16384                                  1.89ns ± 3%  2.08ns ± 3%   +10.00%  (p=0.000 n=31+37)
BM_Sort_uint64_Descending_262144                                 1.92ns ± 3%  2.07ns ± 4%    +7.95%  (p=0.000 n=31+36)
BM_Sort_uint64_SingleElement_1                                   3.68ns ± 5%  3.67ns ± 3%      ~     (p=0.716 n=31+37)
BM_Sort_uint64_SingleElement_4                                   1.46ns ± 3%  1.46ns ± 3%      ~     (p=0.557 n=34+37)
BM_Sort_uint64_SingleElement_16                                  1.09ns ± 2%  0.91ns ± 3%   -16.93%  (p=0.000 n=33+36)
BM_Sort_uint64_SingleElement_64                                  0.83ns ± 4%  1.47ns ± 4%   +78.03%  (p=0.000 n=34+34)
BM_Sort_uint64_SingleElement_256                                 0.95ns ± 4%  1.28ns ± 4%   +35.17%  (p=0.000 n=35+35)
BM_Sort_uint64_SingleElement_1024                                0.76ns ± 3%  1.05ns ± 3%   +37.78%  (p=0.000 n=35+33)
BM_Sort_uint64_SingleElement_16384                               0.71ns ± 2%  0.98ns ± 5%   +38.43%  (p=0.000 n=34+33)
BM_Sort_uint64_SingleElement_262144                              0.72ns ± 3%  0.98ns ± 4%   +35.93%  (p=0.000 n=35+33)
BM_Sort_uint64_PipeOrgan_1                                       3.68ns ± 3%  3.68ns ± 3%      ~     (p=0.650 n=35+33)
BM_Sort_uint64_PipeOrgan_4                                       1.53ns ± 2%  1.54ns ± 4%      ~     (p=0.424 n=33+36)
BM_Sort_uint64_PipeOrgan_16                                      2.23ns ± 3%  2.06ns ± 4%    -7.68%  (p=0.000 n=34+35)
BM_Sort_uint64_PipeOrgan_64                                      5.46ns ± 2%  3.41ns ± 4%   -37.67%  (p=0.000 n=33+36)
BM_Sort_uint64_PipeOrgan_256                                     2.92ns ± 4%  2.91ns ± 3%      ~     (p=0.257 n=35+35)
BM_Sort_uint64_PipeOrgan_1024                                    3.72ns ± 3%  5.35ns ± 4%   +43.95%  (p=0.000 n=35+35)
BM_Sort_uint64_PipeOrgan_16384                                   4.12ns ± 3%  6.37ns ± 3%   +54.74%  (p=0.000 n=34+36)
BM_Sort_uint64_PipeOrgan_262144                                  4.99ns ± 3%  7.25ns ± 5%   +45.45%  (p=0.000 n=35+35)
BM_Sort_uint64_QuickSortAdversary_1                              3.67ns ± 2%  3.65ns ± 3%      ~     (p=0.071 n=35+37)
BM_Sort_uint64_QuickSortAdversary_4                              1.46ns ± 3%  1.46ns ± 3%      ~     (p=0.214 n=36+37)
BM_Sort_uint64_QuickSortAdversary_16                             1.09ns ± 3%  0.91ns ± 3%   -16.73%  (p=0.000 n=36+38)
BM_Sort_uint64_QuickSortAdversary_64                             13.7ns ± 3%  17.8ns ± 5%   +29.86%  (p=0.000 n=36+37)
BM_Sort_uint64_QuickSortAdversary_256                            20.0ns ± 3%  25.9ns ± 3%   +29.25%  (p=0.000 n=35+38)
BM_Sort_uint64_QuickSortAdversary_1024                           28.1ns ± 3%  31.0ns ± 4%   +10.35%  (p=0.000 n=33+37)
BM_Sort_uint64_QuickSortAdversary_16384                          45.8ns ± 2%  50.5ns ± 4%   +10.29%  (p=0.000 n=36+37)
BM_Sort_uint64_QuickSortAdversary_262144                         64.9ns ± 3%  69.5ns ± 3%    +7.15%  (p=0.000 n=36+36)
BM_Sort_pair<uint32, uint32>_Random_1                            4.03ns ± 5%  4.33ns ± 4%    +7.31%  (p=0.000 n=36+36)
BM_Sort_pair<uint32, uint32>_Random_4                            6.78ns ± 5%  6.71ns ± 4%    -1.09%  (p=0.040 n=35+35)
BM_Sort_pair<uint32, uint32>_Random_16                           25.2ns ± 6%  16.8ns ± 7%   -33.35%  (p=0.000 n=35+35)
BM_Sort_pair<uint32, uint32>_Random_64                           35.6ns ± 7%  27.2ns ± 8%   -23.73%  (p=0.000 n=34+36)
BM_Sort_pair<uint32, uint32>_Random_256                          43.5ns ±13%  34.0ns ± 8%   -21.78%  (p=0.000 n=32+34)
BM_Sort_pair<uint32, uint32>_Random_1024                         50.6ns ± 8%  40.8ns ± 5%   -19.35%  (p=0.000 n=32+32)
BM_Sort_pair<uint32, uint32>_Random_16384                        66.0ns ± 3%  55.9ns ± 6%   -15.24%  (p=0.000 n=32+32)
BM_Sort_pair<uint32, uint32>_Random_262144                       82.4ns ± 4%  72.0ns ± 5%   -12.64%  (p=0.000 n=32+31)
BM_Sort_pair<uint32, uint32>_Ascending_1                         4.00ns ± 2%  4.50ns ±16%   +12.59%  (p=0.000 n=33+40)
BM_Sort_pair<uint32, uint32>_Ascending_4                         2.22ns ± 3%  2.34ns ±16%    +5.46%  (p=0.041 n=33+40)
BM_Sort_pair<uint32, uint32>_Ascending_16                        2.33ns ± 4%  1.30ns ±15%   -44.33%  (p=0.000 n=34+40)
BM_Sort_pair<uint32, uint32>_Ascending_64                        1.39ns ± 4%  1.50ns ± 8%    +8.48%  (p=0.000 n=35+32)
BM_Sort_pair<uint32, uint32>_Ascending_256                       1.47ns ± 4%  1.56ns ± 3%    +5.96%  (p=0.000 n=37+31)
BM_Sort_pair<uint32, uint32>_Ascending_1024                      1.34ns ± 3%  1.35ns ± 4%    +1.22%  (p=0.000 n=38+31)
BM_Sort_pair<uint32, uint32>_Ascending_16384                     1.18ns ± 2%  1.18ns ± 3%      ~     (p=0.687 n=37+32)
BM_Sort_pair<uint32, uint32>_Ascending_262144                    1.18ns ± 3%  1.17ns ± 2%      ~     (p=0.153 n=38+34)
BM_Sort_pair<uint32, uint32>_Descending_1                        4.00ns ± 2%  4.29ns ± 3%    +7.22%  (p=0.000 n=37+36)
BM_Sort_pair<uint32, uint32>_Descending_4                        2.91ns ± 3%  2.92ns ± 3%      ~     (p=0.065 n=37+35)
BM_Sort_pair<uint32, uint32>_Descending_16                       4.96ns ± 4%  6.51ns ± 2%   +31.36%  (p=0.000 n=37+30)
BM_Sort_pair<uint32, uint32>_Descending_64                       3.13ns ± 2%  2.92ns ± 3%    -6.71%  (p=0.000 n=36+37)
BM_Sort_pair<uint32, uint32>_Descending_256                      2.56ns ± 3%  2.73ns ± 5%    +6.55%  (p=0.000 n=35+37)
BM_Sort_pair<uint32, uint32>_Descending_1024                     3.11ns ± 3%  2.34ns ± 4%   -24.85%  (p=0.000 n=36+35)
BM_Sort_pair<uint32, uint32>_Descending_16384                    2.84ns ± 3%  2.14ns ± 5%   -24.48%  (p=0.000 n=37+37)
BM_Sort_pair<uint32, uint32>_Descending_262144                   2.86ns ± 3%  2.15ns ± 3%   -25.08%  (p=0.000 n=36+35)
BM_Sort_pair<uint32, uint32>_SingleElement_1                     3.99ns ± 3%  4.28ns ± 3%    +7.08%  (p=0.000 n=33+35)
BM_Sort_pair<uint32, uint32>_SingleElement_4                     2.32ns ± 6%  2.30ns ± 3%    -0.77%  (p=0.032 n=32+35)
BM_Sort_pair<uint32, uint32>_SingleElement_16                    1.67ns ± 4%  1.27ns ± 4%   -24.13%  (p=0.000 n=32+35)
BM_Sort_pair<uint32, uint32>_SingleElement_64                    1.64ns ± 7%  1.83ns ± 4%   +11.54%  (p=0.000 n=31+35)
BM_Sort_pair<uint32, uint32>_SingleElement_256                   1.57ns ± 3%  1.90ns ± 3%   +21.46%  (p=0.000 n=31+36)
BM_Sort_pair<uint32, uint32>_SingleElement_1024                  1.49ns ±15%  1.63ns ± 3%    +9.42%  (p=0.000 n=40+37)
BM_Sort_pair<uint32, uint32>_SingleElement_16384                 1.29ns ±17%  1.57ns ± 3%   +21.51%  (p=0.000 n=33+36)
BM_Sort_pair<uint32, uint32>_SingleElement_262144                1.26ns ± 4%  1.56ns ± 4%   +24.11%  (p=0.000 n=33+36)
BM_Sort_pair<uint32, uint32>_PipeOrgan_1                         4.01ns ± 2%  4.28ns ± 3%    +6.68%  (p=0.000 n=32+35)
BM_Sort_pair<uint32, uint32>_PipeOrgan_4                         2.38ns ± 5%  2.42ns ± 4%    +1.61%  (p=0.000 n=34+35)
BM_Sort_pair<uint32, uint32>_PipeOrgan_16                        4.83ns ± 2%  2.71ns ± 7%   -43.96%  (p=0.000 n=34+34)
BM_Sort_pair<uint32, uint32>_PipeOrgan_64                        4.53ns ± 3%  3.89ns ± 7%   -14.11%  (p=0.000 n=35+33)
BM_Sort_pair<uint32, uint32>_PipeOrgan_256                       5.53ns ± 4%  2.81ns ± 4%   -49.13%  (p=0.000 n=36+33)
BM_Sort_pair<uint32, uint32>_PipeOrgan_1024                      6.49ns ± 4%  5.29ns ± 3%   -18.50%  (p=0.000 n=35+32)
BM_Sort_pair<uint32, uint32>_PipeOrgan_16384                     7.21ns ± 4%  5.97ns ± 3%   -17.24%  (p=0.000 n=36+33)
BM_Sort_pair<uint32, uint32>_PipeOrgan_262144                    7.98ns ± 5%  6.59ns ± 3%   -17.46%  (p=0.000 n=33+33)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_1                3.99ns ± 3%  4.27ns ± 3%    +6.95%  (p=0.000 n=36+34)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_4                2.40ns ± 3%  2.37ns ± 3%    -1.00%  (p=0.007 n=34+34)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_16               4.96ns ± 5%  2.72ns ± 7%   -45.07%  (p=0.000 n=35+35)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_64               7.24ns ± 4%  7.51ns ± 4%    +3.63%  (p=0.000 n=34+35)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_256              9.85ns ± 5%  7.12ns ± 4%   -27.70%  (p=0.000 n=34+35)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_1024             11.6ns ± 6%   8.8ns ± 5%   -23.86%  (p=0.000 n=35+35)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_16384            32.7ns ± 3%  20.8ns ± 4%   -36.26%  (p=0.000 n=35+35)
BM_Sort_pair<uint32, uint32>_QuickSortAdversary_262144           36.4ns ± 3%  24.0ns ± 4%   -34.12%  (p=0.000 n=34+36)
BM_Sort_tuple<uint32, uint64, uint32>_Random_1                   4.04ns ± 6%  4.34ns ± 4%    +7.55%  (p=0.000 n=37+37)
BM_Sort_tuple<uint32, uint64, uint32>_Random_4                   7.19ns ± 6%  7.26ns ± 5%    +0.99%  (p=0.042 n=36+38)
BM_Sort_tuple<uint32, uint64, uint32>_Random_16                  30.4ns ± 6%  21.8ns ± 7%   -28.28%  (p=0.000 n=34+37)
BM_Sort_tuple<uint32, uint64, uint32>_Random_64                  42.8ns ±11%  33.5ns ± 9%   -21.70%  (p=0.000 n=36+38)
BM_Sort_tuple<uint32, uint64, uint32>_Random_256                 49.9ns ± 6%  40.3ns ± 9%   -19.20%  (p=0.000 n=35+38)
BM_Sort_tuple<uint32, uint64, uint32>_Random_1024                56.3ns ± 3%  46.1ns ± 4%   -18.08%  (p=0.000 n=35+35)
BM_Sort_tuple<uint32, uint64, uint32>_Random_16384               72.2ns ± 5%  62.1ns ± 3%   -14.05%  (p=0.000 n=37+36)
BM_Sort_tuple<uint32, uint64, uint32>_Random_262144              88.7ns ± 6%  79.0ns ± 6%   -10.93%  (p=0.000 n=36+36)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_1                3.96ns ± 3%  4.36ns ± 3%    +9.96%  (p=0.000 n=34+37)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_4                2.39ns ± 2%  2.39ns ± 3%      ~     (p=0.604 n=36+37)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_16               3.04ns ± 4%  1.48ns ± 3%   -51.20%  (p=0.000 n=34+35)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_64               2.44ns ± 3%  2.30ns ± 5%    -5.61%  (p=0.000 n=36+35)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_256              2.35ns ± 3%  2.39ns ± 5%    +1.78%  (p=0.000 n=33+34)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_1024             2.12ns ± 5%  2.08ns ± 4%    -1.80%  (p=0.000 n=33+34)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_16384            2.02ns ± 3%  2.00ns ± 5%    -1.25%  (p=0.000 n=32+32)
BM_Sort_tuple<uint32, uint64, uint32>_Ascending_262144           2.06ns ± 5%  2.11ns ± 9%      ~     (p=0.618 n=32+40)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_1               3.97ns ± 2%  4.57ns ±16%   +15.19%  (p=0.000 n=32+40)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_4               3.64ns ± 3%  4.05ns ±15%   +11.05%  (p=0.000 n=33+40)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_16              5.68ns ± 5%  9.36ns ±16%   +64.92%  (p=0.000 n=35+40)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_64              4.27ns ± 4%  3.88ns ± 8%    -9.13%  (p=0.000 n=35+32)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_256             3.58ns ± 3%  3.76ns ±14%    +5.12%  (p=0.002 n=38+40)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_1024            4.16ns ± 3%  3.21ns ± 5%   -22.77%  (p=0.000 n=38+31)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_16384           3.90ns ± 4%  3.00ns ± 3%   -23.12%  (p=0.000 n=38+32)
BM_Sort_tuple<uint32, uint64, uint32>_Descending_262144          4.52ns ± 3%  3.42ns ± 3%   -24.29%  (p=0.000 n=38+33)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_1            3.97ns ± 3%  4.31ns ± 3%    +8.78%  (p=0.000 n=39+34)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_4            2.54ns ± 2%  2.54ns ± 4%      ~     (p=0.341 n=38+36)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_16           2.39ns ± 3%  1.70ns ± 6%   -28.90%  (p=0.000 n=38+35)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_64           2.61ns ± 2%  3.23ns ± 3%   +24.07%  (p=0.000 n=35+35)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_256          2.83ns ± 2%  2.97ns ± 4%    +4.83%  (p=0.000 n=35+37)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_1024         2.44ns ± 4%  2.44ns ± 3%      ~     (p=0.481 n=36+36)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_16384        2.19ns ± 3%  2.37ns ± 6%    +8.01%  (p=0.000 n=36+37)
BM_Sort_tuple<uint32, uint64, uint32>_SingleElement_262144       2.34ns ± 2%  2.36ns ± 5%    +1.11%  (p=0.001 n=36+36)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_1                3.96ns ± 2%  4.31ns ± 3%    +8.76%  (p=0.000 n=33+35)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_4                2.65ns ± 6%  2.67ns ± 4%      ~     (p=0.139 n=32+37)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_16               5.64ns ± 3%  3.56ns ± 3%   -36.80%  (p=0.000 n=31+35)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_64               6.12ns ±16%  5.04ns ± 4%   -17.64%  (p=0.000 n=40+37)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_256              6.78ns ± 6%  3.73ns ± 3%   -44.94%  (p=0.000 n=31+36)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_1024             8.36ns ±15%  6.51ns ± 4%   -22.13%  (p=0.000 n=40+37)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_16384            9.24ns ±15%  7.91ns ± 3%   -14.34%  (p=0.000 n=40+37)
BM_Sort_tuple<uint32, uint64, uint32>_PipeOrgan_262144           10.7ns ± 3%   9.3ns ± 6%   -12.36%  (p=0.000 n=32+36)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_1       3.97ns ± 3%  4.31ns ± 3%    +8.63%  (p=0.000 n=32+35)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_4       2.79ns ± 3%  2.76ns ± 4%    -0.95%  (p=0.002 n=33+33)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_16      5.07ns ± 3%  3.69ns ± 4%   -27.35%  (p=0.000 n=35+33)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_64      9.26ns ± 3%  8.34ns ± 7%    -9.88%  (p=0.000 n=35+33)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_256     11.8ns ± 5%   9.7ns ± 3%   -17.83%  (p=0.000 n=37+33)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_1024    19.2ns ± 4%  14.5ns ±10%   -24.59%  (p=0.000 n=36+33)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_16384   45.5ns ± 4%  37.4ns ± 9%   -17.71%  (p=0.000 n=35+33)
BM_Sort_tuple<uint32, uint64, uint32>_QuickSortAdversary_262144  50.0ns ± 4%  43.2ns ± 3%   -13.69%  (p=0.000 n=35+34)
BM_Sort_string_Random_1                                          4.66ns ± 6%  4.40ns ± 4%    -5.55%  (p=0.000 n=35+37)
BM_Sort_string_Random_4                                          14.9ns ± 3%  15.0ns ± 6%      ~     (p=0.863 n=36+38)
BM_Sort_string_Random_16                                         45.5ns ± 6%  35.8ns ± 8%   -21.37%  (p=0.000 n=36+36)
BM_Sort_string_Random_64                                         66.6ns ± 4%  58.2ns ± 3%   -12.69%  (p=0.000 n=36+37)
BM_Sort_string_Random_256                                        86.0ns ± 5%  77.4ns ± 3%   -10.01%  (p=0.000 n=37+37)
BM_Sort_string_Random_1024                                        106ns ± 3%    96ns ± 6%    -9.39%  (p=0.000 n=37+37)
BM_Sort_string_Random_16384                                       154ns ± 3%   141ns ± 5%    -8.03%  (p=0.000 n=35+36)
BM_Sort_string_Random_262144                                      213ns ± 4%   197ns ± 4%    -7.59%  (p=0.000 n=34+34)
BM_Sort_string_Ascending_1                                       4.59ns ± 2%  4.56ns ±17%    -0.60%  (p=0.002 n=32+40)
BM_Sort_string_Ascending_4                                       7.52ns ± 9%  7.54ns ±12%      ~     (p=0.554 n=37+40)
BM_Sort_string_Ascending_16                                      13.1ns ± 6%   8.8ns ±12%   -33.26%  (p=0.000 n=39+38)
BM_Sort_string_Ascending_64                                      14.8ns ±10%  14.5ns ±11%    -2.15%  (p=0.013 n=40+37)
BM_Sort_string_Ascending_256                                     14.0ns ± 6%  14.1ns ±10%      ~     (p=0.760 n=37+40)
BM_Sort_string_Ascending_1024                                    12.9ns ±10%  12.8ns ±20%      ~     (p=0.055 n=35+40)
BM_Sort_string_Ascending_16384                                   17.2ns ±13%  17.4ns ±21%      ~     (p=1.000 n=37+40)
BM_Sort_string_Ascending_262144                                  17.5ns ±12%  17.5ns ±25%      ~     (p=0.392 n=35+39)
BM_Sort_string_Descending_1                                      4.59ns ± 3%  4.34ns ± 3%    -5.51%  (p=0.000 n=32+33)
BM_Sort_string_Descending_4                                      10.1ns ± 5%   9.8ns ± 4%    -2.84%  (p=0.000 n=36+34)
BM_Sort_string_Descending_16                                     22.0ns ± 4%  39.6ns ± 4%   +79.84%  (p=0.000 n=36+33)
BM_Sort_string_Descending_64                                     21.4ns ±12%  21.3ns ±14%      ~     (p=0.542 n=37+39)
BM_Sort_string_Descending_256                                    19.4ns ±13%  18.9ns ±13%    -2.74%  (p=0.039 n=37+39)
BM_Sort_string_Descending_1024                                   22.7ns ± 5%  17.6ns ±15%   -22.52%  (p=0.000 n=35+40)
BM_Sort_string_Descending_16384                                  27.9ns ±14%  22.6ns ±10%   -19.11%  (p=0.000 n=40+37)
BM_Sort_string_Descending_262144                                 33.8ns ±14%  26.1ns ±21%   -22.74%  (p=0.000 n=39+38)
BM_Sort_string_SingleElement_1                                   4.58ns ± 2%  4.35ns ± 3%    -5.14%  (p=0.000 n=35+37)
BM_Sort_string_SingleElement_4                                   7.92ns ± 3%  7.92ns ± 7%      ~     (p=0.625 n=38+39)
BM_Sort_string_SingleElement_16                                  18.0ns ± 3%   7.9ns ± 6%   -56.23%  (p=0.000 n=36+35)
BM_Sort_string_SingleElement_64                                  20.3ns ± 5%  19.3ns ±15%    -4.83%  (p=0.000 n=34+38)
BM_Sort_string_SingleElement_256                                 19.4ns ± 7%  18.1ns ±14%    -6.67%  (p=0.000 n=36+39)
BM_Sort_string_SingleElement_1024                                19.3ns ± 9%  17.4ns ±17%    -9.40%  (p=0.000 n=35+40)
BM_Sort_string_SingleElement_16384                               17.5ns ±12%  16.2ns ±20%    -7.91%  (p=0.000 n=37+40)
BM_Sort_string_SingleElement_262144                              16.7ns ±18%  15.3ns ±27%    -8.56%  (p=0.000 n=40+40)
BM_Sort_string_PipeOrgan_1                                       4.60ns ± 2%  4.33ns ± 3%    -5.80%  (p=0.000 n=33+31)
BM_Sort_string_PipeOrgan_4                                       8.29ns ± 4%  8.17ns ± 8%    -1.50%  (p=0.004 n=39+36)
BM_Sort_string_PipeOrgan_16                                      22.9ns ± 3%  16.4ns ± 6%   -28.45%  (p=0.000 n=39+38)
BM_Sort_string_PipeOrgan_64                                      30.7ns ± 4%  28.9ns ± 7%    -6.05%  (p=0.000 n=38+37)
BM_Sort_string_PipeOrgan_256                                     38.1ns ± 3%  22.5ns ± 9%   -40.78%  (p=0.000 n=37+37)
BM_Sort_string_PipeOrgan_1024                                    45.4ns ± 4%  36.2ns ± 6%   -20.33%  (p=0.000 n=37+37)
BM_Sort_string_PipeOrgan_16384                                   56.2ns ± 4%  49.0ns ± 8%   -12.73%  (p=0.000 n=36+38)
BM_Sort_string_PipeOrgan_262144                                  77.8ns ±13%  62.8ns ±10%   -19.27%  (p=0.000 n=39+39)
BM_Sort_string_QuickSortAdversary_1                              4.80ns ±16%  4.34ns ± 4%    -9.56%  (p=0.000 n=39+34)
BM_Sort_string_QuickSortAdversary_4                              14.8ns ± 5%  14.7ns ± 4%    -0.80%  (p=0.037 n=33+33)
BM_Sort_string_QuickSortAdversary_16                             44.6ns ± 4%  34.8ns ± 5%   -21.98%  (p=0.000 n=35+34)
BM_Sort_string_QuickSortAdversary_64                             66.2ns ± 3%  58.1ns ± 4%   -12.32%  (p=0.000 n=36+35)
BM_Sort_string_QuickSortAdversary_256                            85.4ns ± 5%  76.9ns ± 6%    -9.99%  (p=0.000 n=36+36)
BM_Sort_string_QuickSortAdversary_1024                            106ns ± 4%    96ns ± 3%    -9.62%  (p=0.000 n=34+37)
BM_Sort_string_QuickSortAdversary_16384                           153ns ± 3%   141ns ± 4%    -8.22%  (p=0.000 n=34+37)
BM_Sort_string_QuickSortAdversary_262144                          211ns ± 5%   195ns ± 6%    -7.77%  (p=0.000 n=35+38)

Differential Revision: https://reviews.llvm.org/D122780
 2022-12-22 14:46:56 -08:00
Nikolas Klauser
947dfc95ca [libc++] Granularize <type_traits> includes in <utility> 
Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D140426
 2022-12-22 23:17:47 +01:00
Mark de Wever
eb6e13cb32 [libc++][format] Adds formatter for tuple and pair 
Implements parts of
- P2286R8 Formatting Ranges

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D136775
 2022-12-22 19:36:28 +01:00
Alex Richardson
eb6fbad711 [libc++] Use aligned_alloc instead of posix_memalign for C++17 
C++17 defines the C11 `aligned_alloc`, so we can use that instead of
posix_memalign. This change allows building against picolibc without
defining _DEFAULT_SOURCE/_GNU_SOURCE.
The C11 `aligned_alloc` function should be available on all supported
non-Windows platforms except for macOS where we need version 10.15.

There is one caveat: aligned_alloc() requires that __size is a multiple of
__alignment, but [new.delete.general] only states "if the value of an
alignment argument passed to any of these functions is not a valid
alignment value, the behavior is undefined".
To handle calls such as ::operator new(1, std::align_val_t(128)), we
round up __size to __alignment (and check for wrap-around).
This is required at least for macOS where aligned_alloc(128, 1) returns
an error instead of allocating memory (glibc ignores the specification).

Differential Revision: https://reviews.llvm.org/D138196
 2022-12-22 15:01:22 +00:00
Michał Górny
ec11388b33 [libc++] Rename __tuple to __tuple_dir to avoid file collision 
Rename the `__tuple` directory in libc++ headers to `__tuple_dir`
to avoid file collision when installing.  Historically, `__tuple` has
been a file and it has been replaced by a directory
in 2d52c6bfae.  Replacing a regular file
with a directory (or more importantly, the other way around when
downgrading) is not universally supported.  Since this is an internal
header, its actual name should not matter, so just rename it to avoid
problems.

Differential Revision: https://reviews.llvm.org/D139270
 2022-12-21 19:19:58 +01:00
Mark de Wever
2b6ce25a2a [libc++] Adds __cpp_lib_constexpr_algorithms to utility. 
Implements:
- LWG3792 __cpp_lib_constexpr_algorithms should also be defined in <utility>

Depends on D140407

Reviewed By: #libc, philnik, ldionne

Differential Revision: https://reviews.llvm.org/D140413
 2022-12-21 17:30:16 +01:00
Nikolas Klauser
66ba7c32ad [libc++] Granularize <type_traits> includes in <concepts> 
Reviewed By: ldionne, Mordante, #libc

Spies: jloser, libcxx-commits

Differential Revision: https://reviews.llvm.org/D139189
 2022-12-20 21:37:39 +01:00
Mark de Wever
e31d27e460 [libc++][format] Renames __null_sentinel. 
While the FreeBSD CI was enabled in D128084 it was discovered libc++
uses the name of a system macro on FreeBSD. This renames the macro to
fix the issue.

Reviewed By: emaste, #libc, philnik

Differential Revision: https://reviews.llvm.org/D140117
 2022-12-17 13:43:52 +01:00
Igor Zhukov
c45f382a12 Implement LWG-3646 std::ranges::view_interface::size returns a signed type 
Reviewed By: Mordante, philnik, #libc

Differential Revision: https://reviews.llvm.org/D139791
 2022-12-16 07:14:00 +07:00
Nikolas Klauser
3ec6c997c6 [libc++] Implement P1169R4 (static operator()) 
Reviewed By: ldionne, huixie90, #libc

Spies: EricWF, libcxx-commits, royjacobson

Differential Revision: https://reviews.llvm.org/D135016
 2022-12-15 02:18:54 +01:00
Mark de Wever
c1905b1c41 [NFC][libc++][format] Uses qualified calls. 
Changes all unqualified calls to __throw_format_error to use a qualified
call.

Reviewed By: #libc, philnik

Differential Revision: https://reviews.llvm.org/D140038
 2022-12-14 22:14:19 +01:00
Hui Xie
e356f681f6 [libc++] Implement std::expected P0323R12 
Implement `std::expected` https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p0323r12.html

Added tests

Differential Revision: https://reviews.llvm.org/D124516

address comment
 2022-12-14 15:43:42 +00:00
Nikolas Klauser
72173469dd [libc++] Refactor char_traits 
This allows us to reuse workarounds for compilers that don't provide the builtins or constexpr support.

Reviewed By: ldionne, Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D139555
 2022-12-09 15:45:02 +01:00
Nikolas Klauser
928c81f3d1 [libc++][math.h] Add double overloads 
This allows libc++ to work with libcs that don't provide a proper math.h implementation.

Reviewed By: ldionne, #libc

Spies: aaron.ballman, fhahn, bcain, Izaron, libcxx-commits

Differential Revision: https://reviews.llvm.org/D138629
 2022-12-08 22:45:39 +01:00
Nikolas Klauser
c02782fc22 [libc++] Move filter_view::iterator and sentinel out of filter_view 
Reviewed By: ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D139273
 2022-12-08 22:29:42 +01:00
Nikolas Klauser
dd28e22953 [libc++][NFC] Rename __libcpp_*_or_builtin to __constexpr_* 
We normally use the `__libcpp_` prefix to backport functions, but that doesn't really make sense here. The functions are always available. Using `__constexpr_` makes the intended use of the functions clear.

Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D139521
 2022-12-08 09:36:17 +01:00
Nikolas Klauser
181cce6b69 [libc++] Implement P0339R6 (polymorphic_allocator<> as a vocabulary type) 
Reviewed By: ldionne, #libc

Spies: LRFLEW, libcxx-commits, arichardson, krytarowski, jdoerfert

Differential Revision: https://reviews.llvm.org/D137739
 2022-12-07 18:50:26 +01:00
Mark de Wever
d184958bad [libc++][format] Adds range-default-formatter. 
This adds an incomplete version where the specializations for the
format_kinds are disabled dummy formatters.

Implements part of
- P2585R0 Improving default container formatting

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D137271
 2022-12-07 17:32:55 +01:00
Nikolas Klauser
8ff4d218a8 [libc++] Fix memory leaks when throwing inside std::vector constructors 
Fixes #58392

Reviewed By: ldionne, #libc

Spies: alexfh, hans, joanahalili, dblaikie, libcxx-commits

Differential Revision: https://reviews.llvm.org/D138601
 2022-12-06 14:37:54 +01:00
Nikolas Klauser
ba1e13d524 [libc++][math.h] move #undefs to the top and guard explicitly against MSVCRT instead 
Reviewed By: ldionne, #libc

Spies: #libc_vendors, EricWF, libcxx-commits

Differential Revision: https://reviews.llvm.org/D137502
 2022-11-30 00:50:12 +01:00
Nikolas Klauser
650da4a690 [libc++][math.h] Use builtins for all the functions 
This allows compiling libc++, even when the C library doesn't support floating point math.

Reviewed By: ldionne, #libc

Spies: daltenty, xingxue, libcxx-commits, michaelplatings

Differential Revision: https://reviews.llvm.org/D136393
 2022-11-30 00:50:08 +01:00
Nikolas Klauser
65df5bf2d1 [lbc++] Implement the rest of P0600R1 (nodiscard in the library) 
Reviewed By: ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D137597
 2022-11-29 19:42:38 +01:00
Nikolas Klauser
ad79455fad [libc++] Don't pass the allocator in substr() 
This bug was dicoved when implementing P2438R2.

Fixes #57190

Reviewed By: ldionne, Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D138069
 2022-11-29 19:40:37 +01:00
Louis Dionne
5935db6ebd [libc++] Fix incorrect guard against the presence of wide characters 
TEST_HAS_NO_WIDE_CHARACTERS should only be used in the tests.

Differential Revision: https://reviews.llvm.org/D138828
 2022-11-28 14:33:49 -08:00
Louis Dionne
b95379d20e [libc++][NFC] Add assertions before calling memmove 
Since we're checking preconditions for calling memmove, we might
as well do that properly.

Differential Revision: https://reviews.llvm.org/D138798
 2022-11-28 11:10:04 -05:00
Louis Dionne
b938b8702f [libc++][NFC] Rename include guards under /support/ 
For consistency with the rest of the code base.
 2022-11-28 09:04:33 -05:00
Louis Dionne
5888e5aebc [libc++][NFC] Remove stray whitespace in string_view 2022-11-28 08:04:15 -05:00
Louis Dionne
df942d5692 [libc++][NFC] Use using declaration instead of typedef in string_view 2022-11-28 08:04:09 -05:00
Louis Dionne
e4aad511e6 [libc++][NFC] Add missing include to ext/__hash 
Note that we use <stddef.h> instead of <cstddef> because we're
using size_t (not std::size_t) and we're outside of namespace std.

Differential Revision: https://reviews.llvm.org/D138716
 2022-11-25 11:49:01 -05:00
Louis Dionne
732bf92c9e [libc++][NFC] Remove unused includes from poll_with_backoff.h 
Differential Revision: https://reviews.llvm.org/D138687
 2022-11-25 10:39:24 -05:00
Louis Dionne
480cd780d6 [libc++][NFC] Consistently use newline between license and include guard 2022-11-25 10:25:17 -05:00