libstdc++-v3/ChangeLog

   1 2021-02-19  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         * include/bits/atomic_wait.h (__thread_relax()): Call
   4         __thread_yield() not __gthread_yield().
   5
   6 2021-02-15  Jonathan Wakely  <jwakely@redhat.com>
   7
   8         * include/bits/atomic_wait.h (__thread_yield()): Check
   9         _GLIBCXX_HAS_GTHREADS before using __gthread_yield.
  10         (__thread_relax()): Use __thread_yield() instead of repeating
  11         the preprocessor checks for __gthread_yield.
  12
  13 2021-02-15  Jonathan Wakely  <jwakely@redhat.com>
  14
  15         * include/std/mutex (once_flag::_M_activate()): Add explicit
  16         return statement for passive case.
  17         (once_flag::_M_finish(bool)): Use reserved name for parameter.
  18
  19 2021-02-14  Jonathan Wakely  <jwakely@redhat.com>
  20
  21         PR libstdc++/99096
  22         * testsuite/util/testsuite_fs.h: Always include <unistd.h>.
  23
  24 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  25
  26         PR libstdc++/88881
  27         * src/c++17/fs_ops.cc (fs::symlink_status): Re-enable workaround.
  28
  29 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  30
  31         * doc/xml/manual/status_cxx2014.xml: Document implementation
  32         specific properties of std::experimental::filesystem::rename.
  33         * doc/xml/manual/status_cxx2017.xml: Document implementation
  34         specific properties of std::filesystem::rename.
  35         * doc/html/*: Regenerate.
  36         * src/c++17/fs_ops.cc (fs::rename): Implement correct behaviour
  37         for directories on Windows.
  38         * src/filesystem/ops-common.h (__gnu_posix::rename): Use
  39         MoveFileExW on Windows.
  40         * testsuite/27_io/filesystem/operations/rename.cc: New test.
  41         * testsuite/experimental/filesystem/operations/rename.cc: New test.
  42
  43 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  44
  45         * testsuite/util/testsuite_fs.h (nonexistent_path): Add
  46         random number to the path.
  47
  48 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  49
  50         * include/experimental/internet (address_v6::to_string): Include
  51         scope ID in string.
  52         * testsuite/experimental/net/internet/address/v6/members.cc:
  53         Test to_string() results.
  54
  55 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  56
  57         * include/experimental/internet (address_v6::any): Avoid using
  58         memcpy in constexpr function.
  59         (address_v6::loopback): Likewise.
  60         (make_address_v6): Fix missing return statements on error paths.
  61         * include/experimental/io_context: Avoid -Wdangling-else
  62         warning.
  63         * testsuite/experimental/net/internet/address/v4/members.cc:
  64         Remove unused variables.
  65         * testsuite/experimental/net/internet/address/v6/members.cc:
  66         New test.
  67
  68 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  69
  70         * include/bits/shared_ptr_base.h (__shared_ptr::_M_get_deleter):
  71         Add unused attribute to parameter.
  72         * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq):
  73         Likewise.
  74
  75 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  76
  77         * testsuite/27_io/basic_ostream/emit/1.cc: Expect test to fail
  78         if -fno-rtti is used.
  79         * testsuite/30_threads/async/forced_unwind.cc: Expect test
  80         to abort if -fno-rtti is used.
  81
  82 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  83
  84         * testsuite/util/testsuite_allocator.h (memory_resource):
  85         Remove requirement for RTTI and exceptions to be enabled.
  86
  87 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
  88
  89         * testsuite/27_io/basic_istringstream/rdbuf/char/2832.cc: Use
  90         static_cast when RTTI is disabled.
  91         * testsuite/27_io/basic_istringstream/rdbuf/wchar_t/2832.cc:
  92         Likewise.
  93         * testsuite/27_io/basic_ostringstream/rdbuf/char/2832.cc:
  94         Likewise.
  95         * testsuite/27_io/basic_ostringstream/rdbuf/wchar_t/2832.cc:
  96         Likewise.
  97         * testsuite/27_io/basic_stringstream/str/char/2.cc:
  98         Likewise.
  99         * testsuite/27_io/basic_stringstream/str/wchar_t/2.cc:
 100         Likewise.
 101
 102 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
 103
 104         * include/std/ostream (__syncbuf_base::_S_get): Mark parameter
 105         as unused and only use dynamic_cast when RTTI is enabled.
 106
 107 2021-02-12  Jonathan Wakely  <jwakely@redhat.com>
 108
 109         PR libstdc++/99077
 110         * src/c++11/cxx11-ios_failure.cc (__ios_failure(const char*, int)):
 111         Change int parameter to error_code, to match std::ios_failure.
 112         (__throw_ios_failure(const char*, int)): Construct error_code
 113         from int parameter.
 114
 115 2021-02-11  Jonathan Wakely  <jwakely@redhat.com>
 116
 117         * libsupc++/eh_ptr.cc (_GLIBCXX_EH_PTR_RELOPS_COMPAT): Define
 118         new macro.
 119         * libsupc++/exception_ptr.h (_GLIBCXX_EH_PTR_USED): Check new
 120         macro instead of _GLIBCXX_EH_PTR_COMPAT.
 121         (operator==): Likewise.
 122
 123 2021-02-11  Jonathan Wakely  <jwakely@redhat.com>
 124
 125         PR libstdc++/99058
 126         * doc/xml/manual/status_cxx2011.xml: Document when support
 127         became stable.
 128         * doc/xml/manual/status_cxx2014.xml: Likewise.
 129         * doc/xml/manual/status_cxx2017.xml: Likewise.
 130         * doc/html/manual/status.html: Regenerate.
 131
 132 2021-02-10  Jonathan Wakely  <jwakely@redhat.com>
 133
 134         PR libstdc++/88881
 135         * src/c++17/fs_ops.cc (fs::status): Re-enable workaround.
 136
 137 2021-02-10  Jonathan Wakely  <jwakely@redhat.com>
 138
 139         * src/c++17/fs_ops.cc (fs::create_hard_link, fs::equivalent)
 140         (fs::remove): Use std::system_category() for error codes from
 141         GetLastError().
 142         * src/filesystem/ops.cc (fs::create_hard_link, fs::remove):
 143         Likewise.
 144
 145 2021-02-10  Jonathan Wakely  <jwakely@redhat.com>
 146
 147         * testsuite/27_io/filesystem/operations/proximate.cc: Fix typo
 148         in __MINGW32__ macro name.
 149         * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
 150         * testsuite/27_io/filesystem/path/generation/proximate.cc:
 151         Likewise.
 152         * testsuite/27_io/filesystem/path/generation/relative.cc:
 153         Likewise.
 154         * testsuite/util/testsuite_fs.h: Likewise.
 155
 156 2021-02-09  François Dumont  <fdumont@gcc.gnu.org>
 157
 158         * include/bits/stl_tree.h
 159         (__has_is_transparent, __has_is_transparent_t): Move...
 160         * include/bits/stl_function.h: ...here.
 161         * include/bits/hashtable_policy.h (_Hash_code_base<>::_M_hash_code_tr): New..
 162         (_Hashtable_base<>::_M_equals_tr): New.
 163         * include/bits/hashtable.h (_Hashtable<>::_M_find_tr, _Hashtable<>::_M_count_tr,
 164         _Hashtable<>::_M_equal_range_tr): New member function templates to perform
 165         heterogeneous lookup.
 166         (_Hashtable<>::_M_find_before_node_tr): New.
 167         (_Hashtable<>::_M_find_node_tr): New.
 168         * include/bits/unordered_map.h (unordered_map::find<>, unordered_map::count<>,
 169         unordered_map::contains<>, unordered_map::equal_range<>): New member function
 170         templates to perform heterogeneous lookup.
 171         (unordered_multimap::find<>, unordered_multimap::count<>,
 172         unordered_multimap::contains<>, unordered_multimap::equal_range<>): Likewise.
 173         * include/bits/unordered_set.h  (unordered_set::find<>, unordered_set::count<>,
 174         unordered_set::contains<>, unordered_set::equal_range<>): Likewise.
 175         (unordered_multiset::find<>, unordered_multiset::count<>,
 176         unordered_multiset::contains<>, unordered_multiset::equal_range<>): Likewise.
 177         * include/debug/unordered_map
 178         (unordered_map::find<>, unordered_map::equal_range<>): Likewise.
 179         (unordered_multimap::find<>, unordered_multimap::equal_range<>): Likewise.
 180         * include/debug/unordered_set
 181         (unordered_set::find<>, unordered_set::equal_range<>): Likewise.
 182         (unordered_multiset::find<>, unordered_multiset::equal_range<>): Likewise.
 183         * testsuite/23_containers/unordered_map/operations/1.cc: New test.
 184         * testsuite/23_containers/unordered_multimap/operations/1.cc: New test.
 185         * testsuite/23_containers/unordered_multiset/operations/1.cc: New test.
 186         * testsuite/23_containers/unordered_set/operations/1.cc: New test.
 187
 188 2021-02-09  François Dumont  <fdumont@gcc.gnu.org>
 189
 190         * include/bits/stl_deque.h
 191         (std::operator-(deque::iterator, deque::iterator)): Replace if/then with
 192         a null pointer test.
 193
 194 2021-02-09  Jonathan Wakely  <jwakely@redhat.com>
 195
 196         * testsuite/27_io/filesystem/operations/remove_all.cc: Remove
 197         test directory after making it writable again.
 198         * testsuite/experimental/filesystem/operations/remove_all.cc:
 199         Likewise.
 200
 201 2021-02-09  Jonathan Wakely  <jwakely@redhat.com>
 202
 203         PR libstdc++/99021
 204         * include/std/coroutine (coroutine_handle<P>::from_address): Add
 205         noexcept.
 206
 207 2021-02-09  Vladimir Vishnevsky  <vv.os.swe@gmail.com>
 208
 209         * include/ext/stdio_sync_filebuf.h: Remove unused <unistd.h>.
 210         * src/c++17/fs_ops.cc (fs::permissions): Qualify mode_t.
 211
 212 2021-02-09  Jakub Jelinek  <jakub@redhat.com>
 213
 214         PR middle-end/98465
 215         * include/bits/basic_string.tcc (basic_string::_M_replace): When __s
 216         points to the characters moved by earlier _S_move, compute the source
 217         address using expression based on the __p pointer rather than __s
 218         pointer.
 219
 220 2021-02-03  Jonathan Wakely  <jwakely@redhat.com>
 221
 222         * testsuite/19_diagnostics/error_code/operators/not_equal.cc:
 223         Add comparison with same category and different values.
 224         * testsuite/19_diagnostics/error_code/operators/less.cc:
 225         Likewise. Fix comparison involving different categories.
 226         * testsuite/19_diagnostics/error_code/operators/three_way.cc:
 227         Likewise.
 228         * testsuite/19_diagnostics/error_condition/operators/less.cc:
 229         Add comment.
 230         * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
 231         Likewise.
 232
 233 2021-02-03  yaozhongxiao  <yaozhongxiao@linux.alibaba.com>
 234
 235         * include/experimental/bits/simd_neon.h: Replace repeated vpadd
 236         calls with a single vaddv for aarch64.
 237
 238 2021-02-03  Matthias Kretz  <kretz@kde.org>
 239
 240         * testsuite/Makefile.am: Warn about the workaround. Add
 241         -fno-tree-vrp to CXXFLAGS passed to the check_simd script.
 242         Improve initial user feedback from make check-simd.
 243         * testsuite/Makefile.in: Regenerated.
 244
 245 2021-02-03  Matthias Kretz  <kretz@kde.org>
 246
 247         * include/experimental/bits/simd.h: Add __detail::_Minimum and
 248         __detail::_Maximum to use them as _BinaryOperation to _S_reduce.
 249         Add hmin and hmax overloads for simd and const_where_expression.
 250         * include/experimental/bits/simd_scalar.h
 251         (_SimdImplScalar::_S_reduce): Make unused _BinaryOperation
 252         parameter const-ref to allow calling _S_reduce with an rvalue.
 253         * testsuite/experimental/simd/tests/reductions.cc: Add tests for
 254         hmin and hmax. Since the compiler statically determined that all
 255         tests pass, repeat the test after a call to make_value_unknown.
 256
 257 2021-02-03  Matthias Kretz  <kretz@kde.org>
 258
 259         * testsuite/experimental/simd/tests/bits/verify.h (verify): Add
 260         instruction pointer data member. Ensure that the `if (m_failed)`
 261         branch is always inlined into the calling code. The body of the
 262         conditional can still be a function call. Move the get_ip call
 263         into the verify ctor to simplify the ctor calls.
 264         (COMPARE): Don't mention the use of all_of for reduction of a
 265         simd_mask. It only distracts from the real issue.
 266
 267 2021-02-03  Matthias Kretz  <kretz@kde.org>
 268
 269         * testsuite/experimental/simd/driver.sh: Abstract reading test
 270         options into read_src_option function. Read skip, only,
 271         expensive, and xfail via read_src_option. Add timeout and
 272         timeout-factor options and adjust timeout variable accordingly.
 273         * testsuite/experimental/simd/tests/loadstore.cc: Set
 274         timeout-factor 2.
 275
 276 2021-02-03  Matthias Kretz  <kretz@kde.org>
 277
 278         * testsuite/experimental/simd/driver.sh: When handling the pipe
 279         to log (and on verbose to stdout) count the lines. If it exceeds
 280         1000 log the issue and exit 125, which is then handled as a
 281         failure.
 282
 283 2021-02-03  Matthias Kretz  <kretz@kde.org>
 284
 285         * testsuite/experimental/simd/tests/hypot3_fma.cc: Add skip:
 286         markup for long double on powerpc64*.
 287
 288 2021-02-03  Matthias Kretz  <kretz@kde.org>
 289
 290         * include/experimental/bits/simd.h: Add __have_power10vec
 291         conditional on _ARCH_PWR10.
 292         * include/experimental/bits/simd_builtin.h: Forward declare
 293         _MaskImplPpc and use it as _MaskImpl when __ALTIVEC__ is
 294         defined.
 295         (_MaskImplBuiltin::_S_some_of): Call _S_popcount from the
 296         _SuperImpl for optimizations and correctness.
 297         * include/experimental/bits/simd_ppc.h: Add _MaskImplPpc.
 298         (_MaskImplPpc::_S_popcount): Implement via vec_cntm for POWER10.
 299         Otherwise, for >=int use -vec_sums divided by a sizeof factor.
 300         For <int use -vec_sums(vec_sum4s(...)) to sum all mask entries.
 301
 302 2021-02-03  Matthias Kretz  <kretz@kde.org>
 303
 304         * testsuite/experimental/simd/driver.sh: Remove executable on
 305         SIGINT. Process compiler and test executable output: In verbose
 306         mode print messages immediately, limited to 1000 lines and
 307         breaking long lines to below $COLUMNS (or 1024 if not set).
 308         Communicating the exit status of the compiler / test with the
 309         necessary pipe is done via a message through stdout/-in.
 310
 311 2021-02-03  Matthias Kretz  <kretz@kde.org>
 312
 313         * testsuite/Makefile.am: Ensure .simd.summary is empty before
 314         collecting a new summary.
 315         * testsuite/Makefile.in: Regenerate.
 316
 317 2021-02-03  Matthias Kretz  <kretz@kde.org>
 318
 319         * testsuite/experimental/simd/generate_makefile.sh: Use
 320         different variables internally than documented for user
 321         overrides. This makes internal append/prepend work as intended.
 322
 323 2021-02-03  Matthias Kretz  <kretz@kde.org>
 324
 325         * testsuite/experimental/simd/driver.sh (verify_test): Print
 326         test output on run xfail. Do not repeat lines from the log that
 327         were already printed on stdout.
 328         (test_selector): Make the compiler flags pattern usable as a
 329         substring selector.
 330         (toplevel): Trap on SIGINT and remove the log and sum files.
 331         Call timout with --foreground to quickly terminate on SIGINT.
 332         * testsuite/experimental/simd/generate_makefile.sh: Simplify run
 333         targets via target patterns. Default DRIVEROPTS to -v for run
 334         targets. Remove log and sum files after completion of the run
 335         target (so that it's always recompiled).
 336         Place help text into text file for reasonable 'make help'
 337         performance.
 338
 339 2021-02-03  Matthias Kretz  <kretz@kde.org>
 340
 341         * include/experimental/bits/simd.h: Remove unnecessary static
 342         assertion. Allow sizeof(8) integer __intrinsic_type to enable
 343         the necessary mask type.
 344
 345 2021-02-03  Matthias Kretz  <kretz@kde.org>
 346
 347         * include/experimental/bits/simd.h: Let __intrinsic_type<long
 348         double, N> be valid if sizeof(long double) == sizeof(double) and
 349         use a __vector double as member type.
 350
 351 2021-02-03  Matthias Kretz  <kretz@kde.org>
 352
 353         * include/experimental/bits/simd.h (__is_intrinsic_type): New
 354         internal type trait. Alias for __is_vector_type on x86.
 355         (_VectorTraitsImpl): Enable for __intrinsic_type in addition for
 356         __vector_type.
 357         (__intrin_bitcast): Allow casting to & from vector & intrinsic
 358         types.
 359         (__intrinsic_type): Explicitly specialize for NEON intrinsic
 360         vector types.
 361
 362 2021-02-03  Matthias Kretz  <kretz@kde.org>
 363
 364         * testsuite/experimental/simd/driver.sh: Implement skip, only,
 365         expensive, and xfail markers. They can select on type, ABI tag
 366         subset number, target-triplet, and compiler flags.
 367         * testsuite/experimental/simd/generate_makefile.sh: The summary
 368         now includes lines for unexpected passes and expected failures.
 369         If the skip or only markers are only conditional on the type, do
 370         not generate rules for those types.
 371         * testsuite/experimental/simd/tests/abs.cc: Mark test expensive
 372         for ABI tag subsets 1-9.
 373         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
 374         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
 375         * testsuite/experimental/simd/tests/casts.cc: Ditto.
 376         * testsuite/experimental/simd/tests/generator.cc: Ditto.
 377         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
 378         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
 379         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
 380         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
 381         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
 382         * testsuite/experimental/simd/tests/mask_loadstore.cc: Ditto.
 383         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
 384         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
 385         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
 386         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
 387         * testsuite/experimental/simd/tests/operators.cc: Ditto.
 388         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
 389         * testsuite/experimental/simd/tests/simd.cc: Ditto.
 390         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
 391         * testsuite/experimental/simd/tests/splits.cc: Ditto.
 392         * testsuite/experimental/simd/tests/where.cc: Ditto.
 393         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto. In
 394         addition replace "test only floattypes" marker by unconditional
 395         "float|double|ldouble" only marker.
 396         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
 397         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
 398         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 399         Ditto.
 400         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
 401         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
 402         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
 403         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
 404         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
 405         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
 406         * testsuite/experimental/simd/tests/sincos.cc: Ditto. In
 407         addition, xfail on run because the reference data is missing.
 408
 409 2021-02-02  Jonathan Wakely  <jwakely@redhat.com>
 410
 411         * doc/xml/manual/status_cxx2011.xml: Remove stray table cell.
 412         * doc/xml/manual/status_cxx2014.xml: Likewise.
 413         * doc/xml/manual/status_cxx2017.xml: Likewise.
 414         * doc/html/manual/status.html: Regenerate.
 415
 416 2021-02-01  François Dumont  <fdumont@gcc.gnu.org>
 417
 418         PR libstdc++/70303
 419         * include/bits/stl_deque.h (std::deque<>::operator-(iterator, iterator)):
 420         Return 0 if both iterators are value-initialized.
 421         * testsuite/23_containers/deque/70303.cc: New test.
 422         * testsuite/23_containers/vector/70303.cc: New test.
 423
 424 2021-02-01  Jonathan Wakely  <jwakely@redhat.com>
 425
 426         * doc/xml/manual/status_cxx2011.xml: Update std::call_once
 427         status.
 428         * doc/xml/manual/status_cxx2014.xml: Likewise.
 429         * doc/xml/manual/status_cxx2017.xml: Likewise. Update
 430         std::from_chars and std::to_chars status. Fix formatting.
 431         * doc/html/manual/status.html: Regenerate.
 432
 433 2021-01-28  Jonathan Wakely  <jwakely@redhat.com>
 434
 435         * include/experimental/bits/numeric_traits.h: Update copyright
 436         dates.
 437         * include/experimental/bits/simd.h: Likewise.
 438         * include/experimental/bits/simd_builtin.h: Likewise.
 439         * include/experimental/bits/simd_converter.h: Likewise.
 440         * include/experimental/bits/simd_detail.h: Likewise.
 441         * include/experimental/bits/simd_fixed_size.h: Likewise.
 442         * include/experimental/bits/simd_math.h: Likewise.
 443         * include/experimental/bits/simd_neon.h: Likewise.
 444         * include/experimental/bits/simd_ppc.h: Likewise.
 445         * include/experimental/bits/simd_scalar.h: Likewise.
 446         * include/experimental/bits/simd_x86.h: Likewise.
 447         * include/experimental/bits/simd_x86_conversions.h: Likewise.
 448         * include/experimental/simd: Likewise.
 449         * testsuite/experimental/simd/*: Likewise.
 450
 451 2021-01-27  Jonathan Wakely  <jwakely@redhat.com>
 452
 453         * doc/xml/manual/status_cxx2017.xml: Replace invalid entity.
 454         * doc/html/*: Regenerate.
 455
 456 2021-01-27  Jonathan Wakely  <jwakely@redhat.com>
 457
 458         * testsuite/experimental/simd/generate_makefile.sh: Use printf
 459         instead of echo when printing escape characters.
 460
 461 2021-01-27  Matthias Kretz  <kretz@kde.org>
 462
 463         * scripts/check_simd: New file. This script is called from the
 464         the check-simd target. It determines a set of compiler flags and
 465         simulator setups for calling generate_makefile.sh and passes the
 466         information back to the check-simd target, which recurses to the
 467         generated Makefiles.
 468         * scripts/create_testsuite_files: Remove files below simd/tests/
 469         from testsuite_files and place them in testsuite_files_simd.
 470         * testsuite/Makefile.am: Add testsuite_files_simd. Add
 471         check-simd target.
 472         * testsuite/Makefile.in: Regenerate.
 473         * testsuite/experimental/simd/driver.sh: New file. This script
 474         compiles and runs a given simd test, logging its output and
 475         status. It uses the timeout command to implement compile and
 476         test timeouts.
 477         * testsuite/experimental/simd/generate_makefile.sh: New file.
 478         This script generates a Makefile which uses driver.sh to compile
 479         and run the tests and collect the logs into a single log file.
 480         * testsuite/experimental/simd/tests/abs.cc: New file. Tests
 481         abs(simd).
 482         * testsuite/experimental/simd/tests/algorithms.cc: New file.
 483         Tests min/max(simd, simd).
 484         * testsuite/experimental/simd/tests/bits/conversions.h: New
 485         file. Contains functions to support tests involving conversions.
 486         * testsuite/experimental/simd/tests/bits/make_vec.h: New file.
 487         Support functions make_mask and make_vec.
 488         * testsuite/experimental/simd/tests/bits/mathreference.h: New
 489         file. Support functions to supply precomputed math function
 490         reference data.
 491         * testsuite/experimental/simd/tests/bits/metahelpers.h: New
 492         file. Support code for SFINAE testing.
 493         * testsuite/experimental/simd/tests/bits/simd_view.h: New file.
 494         * testsuite/experimental/simd/tests/bits/test_values.h: New
 495         file. Test functions to easily drive a test with simd objects
 496         initialized from a given list of values and a range of random
 497         values.
 498         * testsuite/experimental/simd/tests/bits/ulp.h: New file.
 499         Support code to determine the ULP distance of simd objects.
 500         * testsuite/experimental/simd/tests/bits/verify.h: New file.
 501         Test framework for COMPARE'ing simd objects and instantiating
 502         the test templates with value_type and ABI tag.
 503         * testsuite/experimental/simd/tests/broadcast.cc: New file. Test
 504         simd broadcasts.
 505         * testsuite/experimental/simd/tests/casts.cc: New file. Test
 506         simd casts.
 507         * testsuite/experimental/simd/tests/fpclassify.cc: New file.
 508         Test floating-point classification functions.
 509         * testsuite/experimental/simd/tests/frexp.cc: New file. Test
 510         frexp(simd).
 511         * testsuite/experimental/simd/tests/generator.cc: New file. Test
 512         simd generator constructor.
 513         * testsuite/experimental/simd/tests/hypot3_fma.cc: New file.
 514         Test 3-arg hypot(simd,simd,simd) and fma(simd,simd,sim).
 515         * testsuite/experimental/simd/tests/integer_operators.cc: New
 516         file. Test integer operators.
 517         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 518         New file. Test ldexp(simd), scalbn(simd), scalbln(simd), and
 519         modf(simd).
 520         * testsuite/experimental/simd/tests/loadstore.cc: New file. Test
 521         (converting) simd loads and stores.
 522         * testsuite/experimental/simd/tests/logarithm.cc: New file. Test
 523         log*(simd).
 524         * testsuite/experimental/simd/tests/mask_broadcast.cc: New file.
 525         Test simd_mask broadcasts.
 526         * testsuite/experimental/simd/tests/mask_conversions.cc: New
 527         file. Test simd_mask conversions.
 528         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: New
 529         file. Test simd_mask implicit conversions.
 530         * testsuite/experimental/simd/tests/mask_loadstore.cc: New file.
 531         Test simd_mask loads and stores.
 532         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: New
 533         file. Test simd_mask operators convert as specified.
 534         * testsuite/experimental/simd/tests/mask_operators.cc: New file.
 535         Test simd_mask compares, subscripts, and negation.
 536         * testsuite/experimental/simd/tests/mask_reductions.cc: New
 537         file. Test simd_mask reductions.
 538         * testsuite/experimental/simd/tests/math_1arg.cc: New file. Test
 539         1-arg math functions on simd.
 540         * testsuite/experimental/simd/tests/math_2arg.cc: New file. Test
 541         2-arg math functions on simd.
 542         * testsuite/experimental/simd/tests/operator_cvt.cc: New file.
 543         Test implicit conversions on simd binary operators behave as
 544         specified.
 545         * testsuite/experimental/simd/tests/operators.cc: New file. Test
 546         simd compares, subscripts, not, unary minus, plus, minus,
 547         multiplies, divides, increment, and decrement.
 548         * testsuite/experimental/simd/tests/reductions.cc: New file.
 549         Test reduce(simd).
 550         * testsuite/experimental/simd/tests/remqo.cc: New file. Test
 551         remqo(simd).
 552         * testsuite/experimental/simd/tests/simd.cc: New file. Basic
 553         sanity checks of simd types.
 554         * testsuite/experimental/simd/tests/sincos.cc: New file. Test
 555         sin(simd) and cos(simd).
 556         * testsuite/experimental/simd/tests/split_concat.cc: New file.
 557         Test split(simd) and concat(simd, simd).
 558         * testsuite/experimental/simd/tests/splits.cc: New file. Test
 559         split(simd_mask).
 560         * testsuite/experimental/simd/tests/trigonometric.cc: New file.
 561         Test remaining trigonometric functions on simd.
 562         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: New
 563         file. Test trunc(simd), ceil(simd), and floor(simd).
 564         * testsuite/experimental/simd/tests/where.cc: New file. Test
 565         masked operations using where.
 566
 567 2021-01-27  Matthias Kretz  <kretz@kde.org>
 568
 569         * doc/xml/manual/status_cxx2017.xml: Add implementation status
 570         of the Parallelism TS 2. Document implementation-defined types
 571         and behavior.
 572         * include/Makefile.am: Add new headers.
 573         * include/Makefile.in: Regenerate.
 574         * include/experimental/simd: New file. New header for
 575         Parallelism TS 2.
 576         * include/experimental/bits/numeric_traits.h: New file.
 577         Implementation of P1841R1 using internal naming. Addition of
 578         missing IEC559 functionality query.
 579         * include/experimental/bits/simd.h: New file. Definition of the
 580         public simd interfaces and general implementation helpers.
 581         * include/experimental/bits/simd_builtin.h: New file.
 582         Implementation of the _VecBuiltin simd_abi.
 583         * include/experimental/bits/simd_converter.h: New file. Generic
 584         simd conversions.
 585         * include/experimental/bits/simd_detail.h: New file. Internal
 586         macros for the simd implementation.
 587         * include/experimental/bits/simd_fixed_size.h: New file. Simd
 588         fixed_size ABI specific implementations.
 589         * include/experimental/bits/simd_math.h: New file. Math
 590         overloads for simd.
 591         * include/experimental/bits/simd_neon.h: New file. Simd NEON
 592         specific implementations.
 593         * include/experimental/bits/simd_ppc.h: New file. Implement bit
 594         shifts to avoid invalid results for integral types smaller than
 595         int.
 596         * include/experimental/bits/simd_scalar.h: New file. Simd scalar
 597         ABI specific implementations.
 598         * include/experimental/bits/simd_x86.h: New file. Simd x86
 599         specific implementations.
 600         * include/experimental/bits/simd_x86_conversions.h: New file.
 601         x86 specific conversion optimizations. The conversion patterns
 602         work around missing conversion patterns in the compiler and
 603         should be removed as soon as PR85048 is resolved.
 604         * testsuite/experimental/simd/standard_abi_usable.cc: New file.
 605         Test that all (not all fixed_size<N>, though) standard simd and
 606         simd_mask types are usable.
 607         * testsuite/experimental/simd/standard_abi_usable_2.cc: New
 608         file. As above but with -ffast-math.
 609         * testsuite/libstdc++-dg/conformance.exp: Don't build simd tests
 610         from the standard test loop. Instead use
 611         check_vect_support_and_set_flags to build simd tests with the
 612         relevant machine flags.
 613
 614 2021-01-27  Jonathan Wakely  <jwakely@redhat.com>
 615
 616         PR libstdc++/66414
 617         * include/bits/string_view.tcc
 618         (basic_string_view::find(const CharT*, size_type, size_type)):
 619         Optimize.
 620
 621 2021-01-27  Paul Fee  <paul.f.fee@gmail.com>
 622
 623         * include/bits/basic_string.h (basic_string::contains): New
 624         member functions.
 625         * include/std/string_view (basic_string_view::contains):
 626         Likewise.
 627         * include/std/version (__cpp_lib_string_contains): Define.
 628         * testsuite/21_strings/basic_string/operations/starts_with/char/1.cc:
 629         Remove trailing whitespace.
 630         * testsuite/21_strings/basic_string/operations/starts_with/wchar_t/1.cc:
 631         Likewise.
 632         * testsuite/21_strings/basic_string/operations/contains/char/1.cc: New test.
 633         * testsuite/21_strings/basic_string/operations/contains/wchar_t/1.cc: New test.
 634         * testsuite/21_strings/basic_string_view/operations/contains/char/1.cc: New test.
 635         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc: New test.
 636         * testsuite/21_strings/basic_string_view/operations/contains/wchar_t/1.cc: New test.
 637
 638 2021-01-21  Jonathan Wakely  <jwakely@redhat.com>
 639
 640         * src/c++17/Makefile.in: Regenerate.
 641
 642 2021-01-20  David Edelsohn  <dje.gcc@gmail.com>
 643
 644         * config/os/aix/ctype_inline.h (bool ctype<char>:: is): Cast
 645         _OBJ_DATA subscript to unsigned char. Add _THREAD_SAFE access to
 646         __lc_type.
 647         (const char* ctype<char>:: is): Same.
 648
 649 2021-01-18  Jonathan Wakely  <jwakely@redhat.com>
 650
 651         PR libstdc++/98725
 652         * testsuite/20_util/unique_ptr/io/lwg2948.cc:  Do not try to
 653         write to a wide character stream if wide character support is
 654         disabled in the library.
 655
 656 2021-01-18  Jonathan Wakely  <jwakely@redhat.com>
 657
 658         * testsuite/27_io/basic_stringstream/cons/char/1.cc: Use
 659         stringbuf not wstringbuf.
 660
 661 2021-01-18  Jakub Jelinek  <jakub@redhat.com>
 662
 663         PR debug/98708
 664         * src/c++11/Makefile.am (cxx11-ios_failure-lt.s, cxx11-ios_failure.s):
 665         Compile with -gno-as-loc-support.
 666         * src/c++11/Makefile.in: Regenerated.
 667
 668 2021-01-16  H.J. Lu  <hjl.tools@gmail.com>
 669
 670         * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
 671         Add -fcf-protection=none to -march=i486.
 672
 673 2021-01-14  François Dumont  <fdumont@gcc.gnu.org>
 674
 675         * testsuite/23_containers/deque/debug/98466.cc: Make it pre-C++11
 676         compliant.
 677
 678 2021-01-14  Alexandre Oliva  <oliva@adacore.com>
 679
 680         * testsuite/30_threads/future/members/poll.cc: Calibrate
 681         iteration count.
 682
 683 2021-01-14  François Dumont  <fdumont@gcc.gnu.org>
 684
 685         PR libstdc++/98466
 686         * include/bits/hashtable_policy.h (_Node_iterator_base()): Set _M_cur to nullptr.
 687         (_Node_iterator()): Make default.
 688         (_Node_const_iterator()): Make default.
 689         * include/debug/macros.h (__glibcxx_check_erae_range_after): Add _M_singular
 690         iterator checks.
 691         * include/debug/safe_iterator.h
 692         (_GLIBCXX_DEBUG_VERIFY_OPERANDS): Accept if both iterator are value initialized.
 693         * include/debug/safe_local_iterator.h (_GLIBCXX_DEBUG_VERIFY_OPERANDS):
 694         Likewise.
 695         * include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_valid_range): Add
 696         _M_singular checks on input iterators.
 697         * src/c++11/debug.cc (_Safe_iterator_base::_M_can_compare): Remove _M_singular
 698         checks.
 699         * testsuite/23_containers/deque/debug/98466.cc: New test.
 700         * testsuite/23_containers/unordered_map/debug/98466.cc: New test.
 701
 702 2021-01-14  Jonathan Wakely  <jwakely@redhat.com>
 703
 704         PR libstdc++/98471
 705         * include/bits/fs_path.h (__throw_conversion_error): New
 706         function to throw or abort on character conversion errors.
 707         (__wstr_from_utf8): Move definition after filesystem_error has
 708         been defined. Use __throw_conversion_error.
 709         (path::_S_convert<_EcharT>): Use __throw_conversion_error.
 710         (path::_S_str_convert<_CharT, _Traits, _Allocator>): Likewise.
 711         (path::u8string): Likewise.
 712
 713 2021-01-14  Jonathan Wakely  <jwakely@redhat.com>
 714
 715         * include/std/barrier: Update copyright years. Fix whitespace.
 716         * include/std/version: Fix whitespace.
 717         * testsuite/30_threads/barrier/1.cc: Update copyright years.
 718         * testsuite/30_threads/barrier/2.cc: Likewise.
 719         * testsuite/30_threads/barrier/arrive.cc: Likewise.
 720         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
 721         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
 722         * testsuite/30_threads/barrier/completion.cc: Likewise.
 723
 724 2021-01-13  Jonathan Wakely  <jwakely@redhat.com>
 725
 726         * doc/doxygen/user.cfg.in (INPUT): Remove include/debug/array.
 727
 728 2021-01-10  David Edelsohn  <dje.gcc@gmail.com>
 729
 730         PR libstdc++/98613
 731         * testsuite/ext/vstring/cons/moveable.cc: Suppress false positive
 732         warning.
 733         * testsuite/ext/vstring/modifiers/assign/move_assign.cc: Same.
 734
 735 2021-01-08  Olivier Hainque  <hainque@adacore.com>
 736
 737         * testsuite/20_util/bind/ref_neg.cc: Tweak the
 738         dg-prune-output regex for out-of-build-tree contexts.
 739
 740 2021-01-07  Thomas Rodgers  <trodgers@redhat.com>
 741
 742         * doc/doxygen/user.cfg.in: Add new header.
 743         * include/Makefile.am (std_headers): likewise.
 744         * include/Makefile.in: Regenerate.
 745         * include/precompiled/stdc++.h: Add new header.
 746         * include/std/barrier: New file.
 747         * include/std/version: Add __cpp_lib_barrier feature test macro.
 748         * testsuite/30_threads/barrier/1.cc: New test.
 749         * testsuite/30_threads/barrier/2.cc: Likewise.
 750         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
 751         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
 752         * testsuite/30_threads/barrier/arrive.cc: Likewise.
 753         * testsuite/30_threads/barrier/completion.cc: Likewise.
 754
 755 2021-01-07  Patrick Palka  <ppalka@redhat.com>
 756
 757         PR libstdc++/98384
 758         * testsuite/20_util/to_chars/long_double.cc: Use nexttowardl
 759         instead of the non-standard nextupl and nextdownl.
 760
 761 2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>
 762
 763         * configure: Re-generate.
 764
 765 2021-01-05  Ed Smith-Rowland  <3dw4rd@verizon.net>
 766
 767         * include/precompiled/stdc++.h: Add <source_location> to C++20 section.
 768
 769 2021-01-01  Jakub Jelinek  <jakub@redhat.com>
 770
 771         * ChangeLog-2020: Rotate ChangeLog.  New file.
 772
 773 \f
 774 Copyright (C) 2021 Free Software Foundation, Inc.
 775
 776 Copying and distribution of this file, with or without modification,
 777 are permitted in any medium without royalty provided the copyright
 778 notice and this notice are preserved.