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* Apply LTS transformations for 20220623 LTS branch (#1202)20220623.rc120220623.0Gravatar Derek Mauro2022-06-23
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* PR #1197: absl/base/internal/direct_mmap.h: fix musl build on mipsGravatar Fabrice Fontaine2022-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1197 Fix the following musl build failure on mips: ``` In file included from /nvmedata/autobuild/instance-15/output-1/build/libabseil-cpp-20211102.0/absl/base/internal/low_level_alloc.cc:26: /nvmedata/autobuild/instance-15/output-1/build/libabseil-cpp-20211102.0/absl/base/internal/direct_mmap.h:49:10: fatal error: sgidefs.h: No such file or directory 49 | #include <sgidefs.h> | ^~~~~~~~~~~ ``` Fixes: - http://autobuild.buildroot.org/results/3fa027e602bacb22316fb5d9b233baa0b0f0e845 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Merge c9b5b5c5471213a871f7d6d1d2fc8f6899effbac into a184bab83ffcffc2aaac49a3900361158ab3890f Merging this change closes #1197 COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1197 from ffontaine:master c9b5b5c5471213a871f7d6d1d2fc8f6899effbac PiperOrigin-RevId: 455467767 Change-Id: I1905f7d70e914288bc1524a52adce3476a779fd8
* absl/base/internal/invoke: Ignore bogus warnings on GCC >= 11Gravatar Dino Radakovic2022-06-16
| | | | | PiperOrigin-RevId: 455463553 Change-Id: Ifa6c238556339dd4e36715ac040ca048f2f84a9a
* Reformulate documentation of ABSL_LOCKS_EXCLUDED.Gravatar Abseil Team2022-06-10
| | | | | | | The intent of the macro is to say what locks cannot be held when calling the method, not making a promise that they will be acquired. PiperOrigin-RevId: 454158686 Change-Id: I71087460c3df27c7d6e0571156f19f525024f1de
* absl/base/internal/invoke.h: Use ABSL_INTERNAL_CPLUSPLUS_LANG for language ↵Gravatar Dino Radakovic2022-06-09
| | | | | | | version guard PiperOrigin-RevId: 453970585 Change-Id: Iac23eb88ea676efc822f001020b1cc2c255dbbc1
* Fix C++17 constexpr storage deprecation warningsGravatar Derek Mauro2022-06-09
| | | | | | | | | | | | | | | | | | | This change introduces the symbol ABSL_INTERNAL_NEED_REDUNDANT_CONSTEXPR_DECL to guard redundant declarations of static constexpr data members that are needed prior to C++17. This change also introduces the symbol ABSL_INTERNAL_CPLUSPLUS_LANG, which is supposed to be set to the same value as __cplusplus, except it uses _MSVC_LANG on MSVC so that the value is correct on MSVC. Neither of these new symbols should be used outside of Abseil. Fixes #1191 PiperOrigin-RevId: 453923908 Change-Id: I1316c52c19fa0c168b93cced0c817e4cb7c9c862
* Optimize SwissMap iteration by another 5-10% for ARMGravatar Abseil Team2022-06-09
| | | | | | | | | | | | | | | | | | | https://pastebin.com/fDvgWgHe After having a chat with Dougall Johnson (https://twitter.com/dougallj/status/1534213050944802816), we realized that __clzll works with zero arguments per documentation: https://developer.arm.com/documentation/101028/0009/Data-processing-intrinsics ``` Returns the number of leading zero bits in x. When x is zero it returns the argument width, i.e. 32 or 64. ``` Codegen improves https://godbolt.org/z/ebadf717Y Thus we can use a little bit different construction not involving CLS but using more understandable CLZ and removing some operations. PiperOrigin-RevId: 453879080 Change-Id: Ie2d7f834f63364d7bd50dd6a682c107985f21942
* Remove unintended defines from config.hGravatar James Y Knight2022-06-07
| | | | | PiperOrigin-RevId: 453429588 Change-Id: Id377cd89dc807da80a33a8549f4e59bd935aff93
* Optimize SwissMap for ARM by 3-8% for all operationsGravatar Abseil Team2022-06-06
| | | | | | | | | | | https://pastebin.com/CmnzwUFN The key idea is to avoid using 16 byte NEON and use 8 byte NEON which has lower latency for BitMask::Match. Even though 16 byte NEON achieves higher throughput, in SwissMap it's very important to catch these Matches with low latency as probing on average happens at most once. I also introduced NonIterableMask as ARM has really great cbnz instructions and additional AND on scalar mask had 1 extra latency cycle PiperOrigin-RevId: 453216147 Change-Id: I842c50d323954f8383ae156491232ced55aacb78
* Merge pull request #714 from kgotlinux:patch-2Gravatar Copybara-Service2022-06-02
|\ | | | | | | | | PiperOrigin-RevId: 452619005 Change-Id: I6c120f9e7bbabe3b00821adc441608ae9118bee6
* | Include proper #includes for POSIX thread identity implementation when using ↵Gravatar Andy Getzendanner2022-06-02
| | | | | | | | | | | | | | | | | | that implementation on MinGW. Fixes #1124 PiperOrigin-RevId: 452596638 Change-Id: Iab34b8e112dc050ffe346a418fa7b499983f0dcf
* | Disable tests on some platforms where they currently fail.Gravatar Tom Rybka2022-06-02
| | | | | | | | | | PiperOrigin-RevId: 452542838 Change-Id: I45d80b220c0450d27423bb23504e95c25811877b
* | Stop using sleep timeouts for Linux futex-based SpinLockGravatar Derek Mauro2022-05-31
| | | | | | | | | | | | | | | | | | | | | | | | Timeouts were once necessary when the SpinLock Unlock used an atomic store and could therefore have a race and a missed wakeup, however, the Unlock path now uses an atomic exchange, so the missed wakeup cannot happen. Fixes #1179 PiperOrigin-RevId: 452047517 Change-Id: I844944879b51b7f7ddac148e063a376cddd0d05a
* | Enable __thread on AsyloGravatar Abseil Team2022-05-26
| | | | | | | | | | PiperOrigin-RevId: 451201387 Change-Id: Ibeac4f24d00e28bbfc61e476936d669321a2cb24
* | Add implementation of is_invocable_r to absl::base_internal for C++ < 17, ↵Gravatar Dino Radakovic2022-05-26
| | | | | | | | | | | | | | define it as alias of std::is_invocable_r when C++ >= 17 PiperOrigin-RevId: 451171660 Change-Id: I6dc0e40eabac72b82c4a19e292158e43118cb080
* | Optimize SwissMap iteration for aarch64 by 5-6%Gravatar Abseil Team2022-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Benchmarks: https://pastebin.com/tZ7dr67W. Works well especially on smaller ranges. After a week on spending optimizing NEON SIMD where I almost managed to make hash tables work with NEON SIMD without performance hits (still 1 cycle to optimize and I gave up a little), I found an interesting optimization for aarch64 to use cls instruction (count leading sign bits). The loop has a property that ctrl_ group is not matched against count when the first slot is empty or deleted. ``` void skip_empty_or_deleted() { while (IsEmptyOrDeleted(*ctrl_)) { uint32_t shift = Group{ctrl_}.CountLeadingEmptyOrDeleted(); ctrl_ += shift; slot_ += shift; } ... } ``` However, `kEmpty` and `kDeleted` have format of `1xxxxxx0` and `~ctrl & (ctrl >> 7)` always sets the lowest bit to 1. In naive implementation, it does +1 to start counting zero bits, however, in aarch64 we may start counting one bits immediately. This saves 1 cycle and 5% of iteration performance. Then it becomes hard to find a supported and sustainable C++ version of it. `__clsll` is not supported by GCC and was supported only since clang 8, `__builtin_clrsb` is not producing optimal codegen for clang. `__rbit` is not supported by GCC and there is no intrinsic to do that, however, in clang we have `__builtin_bitreverse{32,64}`. For now I decided to enable this only for clang, only if they have appropriate builtins. PiperOrigin-RevId: 451168570 Change-Id: I7e9256a60aecdc88ced4e6eb15ebc257281b6664
* | Don't default to the unscaled cycle clock on any Apple targets.Gravatar Tom Rybka2022-05-19
| | | | | | | | | | | | | | | | Previously was disabled on iPhone, but still enabled for macOS. The unscaled cycle clock does not work correctly when run on a VM. PiperOrigin-RevId: 449876559 Change-Id: I679ade90b43462e8d2794b1a2b32569d59029ed9
* | Use SSE instructions for prefetch when __builtin_prefetch is unavailableGravatar Derek Mauro2022-05-18
| | | | | | | | | | | | | | | | | | | | | | | | This notably gets prefetch working on MSVC Implementation note: https://docs.microsoft.com/en-us/windows/win32/api/winnt/nf-winnt-prefetchcacheline MSVC does have PreFetchCacheLine, but that would require including <windows.h> in a header PiperOrigin-RevId: 449602543 Change-Id: I5e6ca4b7c3d287779aa03c2fd348b41fb65c3680
* | Replace direct uses of __builtin_prefetch from SwissTable with the wrapper ↵Gravatar Greg Falcon2022-05-18
| | | | | | | | | | | | | | | | | | | | | | functions. Add a new (internal) feature test macro to detect whether the wrappers are no-ops on a given platform. Note that one-arg __builtin_prefetch(x) is equivalent to __builtin_prefetch(x, 0, 3), per `man BUILTIN_PREFETCH(3)` and gcc docs. PiperOrigin-RevId: 449508660 Change-Id: I144e750205eec0c956d8dd62bc72e10bdb87c4f7
* | Cast away an unused variable to play nice with -Wunused-but-set-variable.Gravatar Abseil Team2022-05-17
| | | | | | | | | | PiperOrigin-RevId: 449351955 Change-Id: Id30280107bb29f7d715327b99a2c954809513a48
* | raw_logging: Extract the inlined no-hook-registered behavior for ↵Gravatar Andy Getzendanner2022-05-17
| | | | | | | | | | | | | | LogPrefixHook to a default implementation. PiperOrigin-RevId: 449306617 Change-Id: Ia3e87d2edcae7e9874998f21a0e2ff245e48fd96
* | raw_logging: Document that AbortHook's buffers live for as long as the ↵Gravatar Andy Getzendanner2022-05-05
| | | | | | | | | | | | | | process remains alive. PiperOrigin-RevId: 446725910 Change-Id: I291fa8c1c41155b1530969f64b2b7f44b1576c92
* | raw_logging: Rename SafeWriteToStderr to indicate what about it is safe ↵Gravatar Andy Getzendanner2022-05-04
| | | | | | | | | | | | | | | | | | (answer: it's async-signal-safe). Also, preserve errno across calls to make it actually signal-safe. PiperOrigin-RevId: 446620926 Change-Id: I875fbec02b909e8424ddf763303b0d6007f8548f
* | raw_logging: Rename LogPrefixHook to reflect the other half of it's job ↵Gravatar Andy Getzendanner2022-05-04
| | | | | | | | | | | | | | (filtering by severity). PiperOrigin-RevId: 446476285 Change-Id: Ibd0913e06244424241200d17177a4f220fcb7861
* | Adds ABSL_CONST_INIT to initializing declarations where it is missingGravatar Derek Mauro2022-04-25
| | | | | | | | | | | | | | Fixes #1159 PiperOrigin-RevId: 444278141 Change-Id: Iae055fe78b438c31150a9e7601b734f4981f002e
* | Export of internal Abseil changesGravatar Abseil Team2022-04-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 3d018c03a34bf273a4b24b3584ed77f0a6d21686 by Abseil Team <absl-team@google.com>: Fix a spelling typo (s/boundries/boundaries). PiperOrigin-RevId: 442041877 Change-Id: I608020697d37b85316bb9a0838e4b457659c926c -- 518b8119e51db24ce7fb0fd2fe537ec43825c3e6 by Dino Radakovic <dinor@google.com>: absl/types/internal/variant: Make include guard uppercase https://google.github.io/styleguide/cppguide.html#The__define_Guard PiperOrigin-RevId: 441911692 Change-Id: I9837dd07f20204d8253f20627b0917a34dc21825 -- b91696c38310a7cae8c1ea9e2d479495f5dc3f69 by Greg Falcon <gfalcon@google.com>: Add an internal-only API to wrap __builtin_prefetch() if available. This private API is intended for future use by the Abseil implementation. Like any internal-namespaced function, it may be changed or removed at any time. PiperOrigin-RevId: 441894616 Change-Id: Iaa48bd4680b373f4a0d5afab0cb35e2a1908595f -- 0f01e8b0551a662e02dff60840c54320f987315f by Derek Mauro <dmauro@google.com>: C++20: Use the standard `constinit` keyword for `ABSL_CONST_INIT` when available PiperOrigin-RevId: 441778874 Change-Id: I70c616469752ff23b326b1c615437599f42cc6aa GitOrigin-RevId: 3d018c03a34bf273a4b24b3584ed77f0a6d21686
* | Export of internal Abseil changesGravatar Abseil Team2022-04-14
| | | | | | | | | | | | | | | | | | | | | | | | | | -- 155545fafefd0a0cef83853f1addea1ecf4a4618 by Derek Mauro <dmauro@google.com>: Support ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS on MSVC https://docs.microsoft.com/en-us/cpp/cpp/no-sanitize-address PiperOrigin-RevId: 441737758 Change-Id: Ida9b185a929ffa22ad2ffdcfbd53076f69bfc036 GitOrigin-RevId: 155545fafefd0a0cef83853f1addea1ecf4a4618
* | Export of internal Abseil changesGravatar Abseil Team2022-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- f4c7e510922668c68be4aa79a00867c3d3ca9f95 by Derek Mauro <dmauro@google.com>: Many improvements to LeakChecker builds The presence of the LeakChecker is now detected when possible. GCC users using LeakChecker in standalone mode still need to use -DLEAK_CHECKER. This is now documented in the header. The hacky targets used for testing leak checking have been removed in favor of testing in AddressSanitizer mode on Kokoro. Fixes #885 Fixes #1153 PiperOrigin-RevId: 441203393 Change-Id: Ibe64ef6b104bcaf31839ff7184e558cc86abdd1c -- 5c70a23aa83b8152ab95d2cf21662fc63c80ef7d by Abseil Team <absl-team@google.com>: Add a benchmark for stacktrace PiperOrigin-RevId: 441196473 Change-Id: I4c9aa2e797aa2cae09abfaaee3abe5c09eb62fc4 -- 50b406052273b9d5bad04a7860a96e4d5d956c02 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 441114481 Change-Id: I667af7a50d5631ca91289dd24c91ba90233e0184 -- 568b4eaac120b420bce5290179d407d2b57d5bae by Dino Radakovic <dinor@google.com>: Internal change PiperOrigin-RevId: 440894155 Change-Id: Ia587ffc65a8321126585fb363b7c0ca8cc2a0da2 -- d53948eace4f3a10ac5a6c1496dc51b81adc412c by Abseil Team <absl-team@google.com>: Explicitly give internal linkage to symbols which are not used outside of their translation units. PiperOrigin-RevId: 440424519 Change-Id: I531c5e229d443375483b7550a34f48042589a99b GitOrigin-RevId: f4c7e510922668c68be4aa79a00867c3d3ca9f95
* | Export of internal Abseil changesGravatar Abseil Team2022-04-07
| | | | | | | | | | | | | | | | | | | | | | -- 0c8848ebedc07470c7ab647a5bb8949481540ce9 by Dino Radakovic <dinor@google.com>: Define absl::base_internal::invoke using std::invoke when C++ >= 17 PiperOrigin-RevId: 439880834 Change-Id: I3622fcf473501d54c57575118a11d54c19573446 GitOrigin-RevId: 0c8848ebedc07470c7ab647a5bb8949481540ce9
* | Export of internal Abseil changesGravatar Abseil Team2022-04-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- afa44fa0245a1cfb1824ef9697b3fa77fa9615c9 by Laramie Leavitt <lar@google.com>: Comment CMakeLists.txt about internal absl_cc_library() targets. From what I can tell, these are the CMake targets that are public: absl::algorithm absl::algorithm_container absl::base absl::core_headers absl::dynamic_annotations absl::log_severity absl::cleanup absl::btree absl::fixed_array absl::flat_hash_map absl::flat_hash_set absl::inlined_vector absl::node_hash_map absl::node_hash_set absl::debugging absl::failure_signal_handler absl::leak_check absl::leak_check_disable absl::stacktrace absl::symbolize absl::flags absl::flags_commandlineflag absl::flags_config absl::flags_marshalling absl::flags_parse absl::flags_reflection absl::flags_usage absl::bind_front absl::function_ref absl::hash absl::hash_testing absl::memory absl::meta absl::type_traits absl::bits absl::int128 absl::numeric absl::numeric_representation absl::exponential_biased absl::periodic_sampler absl::sample_recorder absl::random_bit_gen_ref absl::random_distributions absl::random_mocking_bit_gen absl::random_random absl::random_seed_gen_exception absl::random_seed_sequences absl::status absl::statusor absl::cord absl::cord_test_helpers absl::str_format absl::strings absl::synchronization absl::civil_time absl::time absl::time_zone absl::any absl::bad_any_cast absl::bad_optional_access absl::bad_variant_access absl::compare absl::optional absl::span absl::variant absl::utility PiperOrigin-RevId: 438702788 Change-Id: Icf611c35e88f03cd2493a95f61617605305d4e8e -- a99f60847578e6c0df6befadb29a01c86def0d21 by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 438647928 Change-Id: I141eadd17d6e8607df25ebc893aecefa0239a72f -- b23e77e8f62a77023188594390c9e491c507d22c by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 438628502 Change-Id: I40c4297716c8c1621ba8b02a22393bfcbefb5b5e GitOrigin-RevId: afa44fa0245a1cfb1824ef9697b3fa77fa9615c9
* | Export of internal Abseil changesGravatar Abseil Team2022-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- b984c7c1cbee4253192c833046bfcfa16dca8ccf by Dino Radakovic <dinor@google.com>: Restrict visibility of absl/flags:commandlineflag_internal PiperOrigin-RevId: 438591894 Change-Id: I12a6392b2c7f9f1263c741dfd6c43ae22e903aad -- 81315601aab70bb6ac2d17655a727d7f9ee2ff95 by Justin Lebar <jlebar@google.com>: Update example in str_join.h to use a lambda. PiperOrigin-RevId: 438390035 Change-Id: Icc707b972e5a369a71ad774004fdf0a17a9b33a7 -- 1c3c7921224e505faca8617b073f657d3737219f by Dino Radakovic <dinor@google.com>: Internal change PiperOrigin-RevId: 438386036 Change-Id: I6066da1b5a1ddf5af265944a31ed298297b4f2e1 -- 2d6885f78481f04e0e7ee86060aec15b677144f3 by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 438378389 Change-Id: If70dd9114114eb44e85afccd521e7fb7e1436b88 -- 7f8282ddee7fcd032e01cbfe65c11c2d166cceb8 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 438374554 Change-Id: I993367952af1dc83bd5aa0ae19a64c024f457fdd -- ce65ba28f6031e45db8fa5118a05410f5166fd7a by Abseil Team <absl-team@google.com>: Spelling gardening: Heterogeneous has an "e" after the "n". PiperOrigin-RevId: 438374411 Change-Id: If1a9098a5d04338837998883739c7b555efa62b4 GitOrigin-RevId: b984c7c1cbee4253192c833046bfcfa16dca8ccf
* | Export of internal Abseil changesGravatar Abseil Team2022-03-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 291f7ef542f73e4801ab5108014bc02344ef31df by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 437835981 Change-Id: I42fd92e74903894533ac9984d7f622e3ba20f468 -- 2e8caf1a57c50b518e05b4bca48e4fe1bb19af82 by Andy Getzendanner <durandal@google.com>: Internal change PiperOrigin-RevId: 437832673 Change-Id: I61b35089418d01a54cecf161b254b68252bebff3 -- b927482ccc399f7e337b60582988b914d9946e4e by Derek Mauro <dmauro@google.com>: Simplify endian intrinsics for modern compilers All modern compilers have either __builtin_bswapN (gcc, clang) or _byteswap_TYPE (MSVC). The other intrinsic definitions are no longer necessary. PiperOrigin-RevId: 437772295 Change-Id: Ifb3d88ba24b9097f87ceb202272b36d2f5e5117f -- b6782a2247a16d5c14706a74ec577c19963d9f97 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 437373174 Change-Id: I0f77e1780dee90d7a3c32a08d96c4aeb624a57b4 -- a53e0c724e37b0b01515a99bd25394b8e21ffdfc by Derek Mauro <dmauro@google.com>: Unify detection of SSE2 and SSSE3 instruction sets and include the proper headers Fix the intrinsic implementation of FastHexToBufferZeroPad16 in numbers.h which only relies on SSSE3, not SSE 4.2. https://godbolt.org/z/Pf5bn1Yv9 Closes #639 PiperOrigin-RevId: 437286940 Change-Id: Ic97948399b61b91e9c0bccd09313b795b904d714 -- f173f597cb2a75ef2a989f45a496334b85e6f40d by Abseil Team <absl-team@google.com>: Change assertion function to enable clearer error messages. PiperOrigin-RevId: 437227057 Change-Id: If420d2f63b51feef6648762f344d5be012cd9c85 GitOrigin-RevId: 291f7ef542f73e4801ab5108014bc02344ef31df
* | Support for QNX (#1147)Gravatar Calvin Ke2022-03-25
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* | Exclude unsupported x64 intrinsics from ARM64EC (#1135)Gravatar Ben Niu2022-03-18
| | | | | | | | | | | | | | | | | | ARM64EC is a Microsoft-designed ARM64 ABI compatible with AMD64 applications on ARM64 Windows 11. The ARM64EC does not support _umul128 and __rdtsc as x64 intrinsics, though it provides inline function implementations for them, by emulation. Since the code already has portable code paths without using the intrinsics, instead of using the emulated intrinsic implementations, we use the said portable code paths for ARM64EC.
* | Export of internal Abseil changesGravatar Abseil Team2022-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 399d051d30f7a78c367bb1dc08829ffacbb619a6 by Abseil Team <absl-team@google.com>: Fix a glitch in symbolization which could result in the same address being correctly symbolized and "(unknown)" in the same crash report. PiperOrigin-RevId: 435371003 Change-Id: I9f6a5684144be6d3d366584601d79fda9eefdce6 -- 5dad813de52773e0bb09c6b2351e1bbadb53deac by Abseil Team <absl-team@google.com>: Fix ABSL_HAVE_MMAP check in direct_mmap.h This change makes the check for ABSL_HAVE_MMAP match the other checks in absl. This fixes builds where ABSL_HAVE_MMAP is not defined. PiperOrigin-RevId: 435190242 Change-Id: I11638ef315849cafcf4ea1611eee1a98c80e7dcb GitOrigin-RevId: 399d051d30f7a78c367bb1dc08829ffacbb619a6
* | Export of internal Abseil changesGravatar Abseil Team2022-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 5dc885f2b62993bccf33a3f3b99f7e460c819c89 by Derek Mauro <dmauro@google.com>: Remove the internal-only ABSL_INTERNAL_ASSUME now that ABSL_ASSUME is available and ABSL_INTERNAL_ASSUME has no more users. Improve the documentation to ABSL_ASSUME somewhat. PiperOrigin-RevId: 434803125 Change-Id: I7c27418463ffc1c7e10ecd50e2d17f348f686af7 -- 4aea19a0ef596228c9136a4c2446e6f25085f23c by Derek Mauro <dmauro@google.com>: Update documentation to warn against using absl::Hash across dynamically loaded libraries Fixes #1128 PiperOrigin-RevId: 434723247 Change-Id: Ib0c7ba03b2cab98b42e19e85be6833192d4b4067 GitOrigin-RevId: 5dc885f2b62993bccf33a3f3b99f7e460c819c89
* | Export of internal Abseil changesGravatar Abseil Team2022-03-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- d3b99682554d339c42556680f4d65f83226005e2 by Martijn Vels <mvels@google.com>: Inline CycleClock code and remove branch for x86 CycleClockSource function This CL removes the relaxed load for x86 as there is no acquire price to pay on x86. It inlines the UnscaledCycleClock::Now() which is a single RTDSC op for x86, and likewise inlines CycleClock::Now() for x86. The inlining should mostly have secondary benefits such as reducing spills on outlined calls. LTO may eventually hoist these functions inline for the hotspots, but it doesn't hurt to default inline this for all builds and let the compiler decide on the first pass. The perlab benchmark is noisy for the plain BM_Now, but the other benchmarks and the run on my local machine are clear. ------------- Local Benchy Benchmark name old cpu/op new cpu/op delta BM_Now 3.41ns ± 1% 2.30ns ± 2% -32.52% (p=0.000 n=50+50) BM_NowWithRegisterPresure 4.96ns ± 2% 4.19ns ± 2% -15.57% (p=0.000 n=56+55) BM_NowWithCallback 3.30ns ± 2% 1.91ns ± 2% -42.00% (p=0.000 n=47+60) ------------- Perflab Benchy Benchmark name old cpu/op new cpu/op delta BM_Now 8.20ns ±13% 4.32ns ±83% ~ (p=0.413 n=4+5) BM_NowWithRegisterPresure 7.91ns ± 1% 3.68ns ± 2% -53.45% (p=0.029 n=4+4) BM_NowWithCallback 2.66ns ±13% 1.58ns ± 0% -40.51% (p=0.008 n=5+5) PiperOrigin-RevId: 434474766 Change-Id: I991d987ae9233e50f09606c874055cf4c5a56300 -- b38330686a0af176a2679163e4d2fa1b90e2f667 by Laramie Leavitt <lar@google.com>: Style, comment, and test updates * Remove a redundant assert in uniform_real_distribution. * Update comment in internal/generate_real.h * Style updates to uniform_real_distribution_test mainly replacing TypeParam with real_type, using aliases for some limits, etc. * Add a few more minor tests. PiperOrigin-RevId: 433902174 Change-Id: Id75be8e24be2fb8f6aea05feec13e3ef320a7254 -- ab2da6047ff7f5dae3add3779fcddf73b03feabf by Abseil Team <absl-team@google.com>: Remove declaration of method whose definition was previously removed. PiperOrigin-RevId: 433507828 Change-Id: I0130b689813125250f7de2664e767e181f676c89 -- df0c87f4ec2c010691931c1bef9d26470a6e63a2 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 433289136 Change-Id: Iba157dc83ed99dafd17a2223d2504e49f8afbb9e -- 7445fa312f2995772900eda82467325b3401a17d by Martijn Vels <mvels@google.com>: Optimize CordReader logic now that CONCAT is removed This CL cleans up various helper functions and logic remaining from previous complex CONCAT logic that is no longer needed, simplifying the CordReader logic. PiperOrigin-RevId: 433208748 Change-Id: I5f7b1883573c44e7c6f8af12c3cddbd197cb134d GitOrigin-RevId: d3b99682554d339c42556680f4d65f83226005e2
* | Add NetBSD support (#1121)Gravatar Thomas Klausner2022-03-08
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* | Some trivial OpenBSD-related fixes (#1113)Gravatar Andrew Krasavin2022-03-03
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* | Export of internal Abseil changesGravatar Abseil Team2022-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 7473df9e4922c589f6b27cf546aad097381ae552 by Martijn Vels <mvels@google.com>: Make ABSL_ASSUME publicly available PiperOrigin-RevId: 430540224 Change-Id: I760e2d86e3a0b676cd2a6d26e0225a77381e948f -- c83e38bc421f715b3c1e20150c2f1ffe8e633028 by Abseil Team <absl-team@google.com>: Alias absl::bind_front to std::bind_front if available This avoids ambiguity between the two when enabling C++20. PiperOrigin-RevId: 430486679 GitOrigin-RevId: 7473df9e4922c589f6b27cf546aad097381ae552 Change-Id: I1e9bba09a8946480ce10ddd28e86b6c86191d38c
* | Export of internal Abseil changesGravatar Abseil Team2022-02-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- ceee18732f9499d3a53d46d5974f12ea0774b900 by Abseil Team <absl-team@google.com>: Remove division from the profile guided optimization PiperOrigin-RevId: 428444108 -- fc27059f1b0c0b4cb8ddd9a7a88220af52c0c755 by Evan Brown <ezb@google.com>: Rename btree_node::leaf to is_leaf and also add is_internal for readability improvements. PiperOrigin-RevId: 428076422 -- 6a90d18477cc3a6de84282b6e38d6f294aa72748 by Evan Brown <ezb@google.com>: In sanitizer mode, add generation integers to b-tree nodes and iterators and validate that iterators have not been invalidated already when they're used. Even though generation integers are stored in all nodes, we only use the one stored in the root node for validation. The reason we keep one in all the nodes is that nodes can become a root node after they are allocated. Also change the order of args in init_leaf to not violate the style guide. PiperOrigin-RevId: 428054226 -- ede4a0f676f43e7003fd2599c263d55222e760ba by Martijn Vels <mvels@google.com>: Physically remove CordRepConcat This CL removes all uses of CordRepConcat. This change is executed by removing all the dead 'btree_enabled()' and 'IsConcat' branches, and all subsequent dead code. This change explicitly does not optimize any of the remaining code other than the most trivial ones such as removing 'stack' loop vars and loops. PiperOrigin-RevId: 428002308 -- 7cc83d96118149cf1aa1258a066b8fd4517df5f6 by Evan Brown <ezb@google.com>: Change btree_iterator from a struct to a class. Motivation: btree_iterator has private members and invariants so it should be a class. Also merge two private sections. PiperOrigin-RevId: 427768836 -- 524d478b0af422e1a867a8823d9fbad149030360 by Martijn Vels <mvels@google.com>: Physically block the creation of new CordRepConcat nodes. This change removes CordRepConcat creation, issuing a FATAL errors on the (practically impossible) call path on broken invariants. This change is deliberately limited in impact, subsequent changes will be more voluminous ripping out the (now dead) CordRepConcat code. PiperOrigin-RevId: 427741022 -- e21eb354c1bb358ea8b64d0e3fbb378e87b8b8c4 by Derek Mauro <dmauro@google.com>: Update the implementation of ABSL_DEPRECATED to work with GCC, and recommend using the standard attribute [[deprecated]] for C++14 and newer GCC users that are experiencing new warnings can silence them with -Wno-deprecated-declatations. GCC users that want to see the warnings but not error on them can use -Wno-error=deprecated-declarations. PiperOrigin-RevId: 427228952 -- 0ab4ee5660f3a072054dc4ab5056925c26977c7a by Laramie Leavitt <lar@google.com>: Change comment to avoid overflow. PiperOrigin-RevId: 427090218 GitOrigin-RevId: ceee18732f9499d3a53d46d5974f12ea0774b900 Change-Id: Ida00477b6a3d02a8b7bb467be7621b618385d1e9
* | Export of internal Abseil changesGravatar Abseil Team2022-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 262f6992ee0553782531ad58dd7d8bcd6d0b7bb7 by Martijn Vels <mvels@google.com>: Remove CordRepConcat uses in tests and CONCAT constants. This change removes the creation and uses of CordRepConcat in unit tests, and replaces some remaining CONCAT constants with IsConcat() to make subsequent teardown of CordrepConcat uses easier. PiperOrigin-RevId: 426932694 -- fd590f7e849ba8c5395c589ed3f762cd00affdc8 by Abseil Team <absl-team@google.com>: Replace NULL and 0 with nullptr. PiperOrigin-RevId: 426912932 -- 183e5babc478748023f732a1608745a2a544c996 by Abseil Team <absl-team@google.com>: Replace "span of time" with "amount of time" in the first comment line, to make it clearer that we're not talking about a duration that starts at a specific time. PiperOrigin-RevId: 426691794 -- e28ca760f21505f1be55c7af336eb61d2f1b7fea by Martijn Vels <mvels@google.com>: Add extra assertions on CordRepSubstring child nodes PiperOrigin-RevId: 426369104 GitOrigin-RevId: 262f6992ee0553782531ad58dd7d8bcd6d0b7bb7 Change-Id: I7ffdaa2dc999a2117944c9abdb1565b6b6f48b59
* | Export of internal Abseil changesGravatar Abseil Team2022-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- c475e8ac1ea163248415e7d4bdc05e3c47dd8f3d by Derek Mauro <dmauro@google.com>: Replace absl::bit_cast with std::bit_cast in C++20 Remove the deprecated implementation that is less-strict than the standard, and also relies on undefined behavior PiperOrigin-RevId: 425391711 -- dc97c996aed85161f0e490baafd3ed851e8bea9d by Abseil Team <absl-team@google.com>: Add enum example for ABSL_DEPRECATED() PiperOrigin-RevId: 425311634 GitOrigin-RevId: c475e8ac1ea163248415e7d4bdc05e3c47dd8f3d Change-Id: Id8f159b37fe3f3cace6ab7bce08daf9888c44bcf
* | Export of internal Abseil changesGravatar Abseil Team2022-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 75504b9d2eb7560359b98b69136d071f980e04f2 by Abseil Team <absl-team@google.com>: Fix typos in documentation. PiperOrigin-RevId: 423376798 -- bf87e5de48a868f49a57d516be027e6e3a3cc3bd by Gennadiy Rozental <rogeeff@google.com>: Correct WEAK attribute enabling condition. ABSL_ATTRIBUTE_WEAK is present if: compiler has built-in attribute weak OR we are using gcc (and not clang) AND we are not on windows OR we use windows clang version >= 9.0.0 AND we are not on MinGW PiperOrigin-RevId: 423357629 -- a01a8f1b7ea3da4ec349db452162a3333953dd9d by Abseil Team <absl-team@google.com>: There are magic numbers in the expected load factors and probe lengths, and they seem to be wrong especially under msvc. Even under the linux tool chain, these tests fail occasionally. Fix the magic numbers to make the tests succeed. PiperOrigin-RevId: 423320829 -- fd109295a1425ca1cb2b69fe34a294b6189542c0 by Laramie Leavitt <lar@google.com>: Manually align buffers in randen_engine. In C++ it's implementation defined whether types with extended alignment are supported. randen_engine uses vector intrinsics with 16-byte alignment requirements in some instances, so internally we allocate an extra 8 bytes to manually align to 16. No detectable performance impact. PiperOrigin-RevId: 423109265 GitOrigin-RevId: 75504b9d2eb7560359b98b69136d071f980e04f2 Change-Id: I8c5ab2269ff6d9e89d3b4d0e95d36ddb6ce8096e
* | Export of internal Abseil changesGravatar Abseil Team2022-01-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 7f5caec21a1a88db6486b8bc2e5f6d5baba076ed by Derek Mauro <dmauro@google.com>: Tag absl::StatusOr with [[nodiscard]] when it is available [[nodiscard]] provides better diagnostics on classes than the current ABSL_MUST_USE_RESULT, which expands to __attribute__((warn_unused_result)) Ideally we would make ABSL_MUST_USE_RESULT expand to [[nodiscard]], but we would need to fix all code to build with [[nodiscard]] first. PiperOrigin-RevId: 422628161 -- 236be69f0f34ccaa3adc831075613847797e6557 by Jorg Brown <jorg@google.com>: Make sure all of absl/strings compiles even with -Wsign-compare and -Wconversion warnings. PiperOrigin-RevId: 422573904 -- 005669883a8794e6d19dc4bbb4f0e18032e2fbc9 by Chris Kennelly <ckennelly@google.com>: Include sampling stride in hashtable sampling data. This allows us to weight each sample to control for our sampling rate. PiperOrigin-RevId: 421886935 -- 78046ce6b429b9f5b6c97b05e8448a791db93bbe by Abseil Team <absl-team@google.com>: Use __builtin_bit_cast for absl::bit_cast when possible This makes absl::bit_cast match the requirements of the standard when compiler support exists. PiperOrigin-RevId: 421883999 -- f397461f4bbeabd32437df0f2275663aeb51adb2 by Derek Mauro <dmauro@google.com>: Tag absl::Status with [[nodiscard]] when it is available [[nodiscard]] provides better diagnostics on classes than the current ABSL_MUST_USE_RESULT, which expands to __attribute__((warn_unused_result)) Ideally we would make ABSL_MUST_USE_RESULT expand to [[nodiscard]], but we would need to fix all code to build with [[nodiscard]] first. PiperOrigin-RevId: 421825565 GitOrigin-RevId: 7f5caec21a1a88db6486b8bc2e5f6d5baba076ed Change-Id: I760b45b68f6012809c70c2a584e4144a99f98733
* | Export of internal Abseil changesGravatar Abseil Team2022-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 0db7f4046f9b59c0f8c3df2f0eb7fd88fc328439 by Abseil Team <absl-team@google.com>: Revise documentation of bit_cast: * Removes inappropriate examples (round-tripping pointers, serialization), for which reinterpret_cast is more appropriate. * Removes mention of "bit representation", which is not an explicit notion in C++. The best we get is "byte representation". * Removes a circular defition of "bitcast" as itself, and instead explains what it does. * Removes the mathism "for some values of", which is probably not totally accessible to a general audience, and in any case needless verbiage. * Fixes comments in the example. * Replaces some colloquialisms with simpler, more direct language. PiperOrigin-RevId: 421791786 -- e04e64df55d93c1b9a09c0483b97cc4d8763260d by Derek Mauro <dmauro@google.com>: Update Docker image to use GCC 11.2, Clang 14 (prerelease), CMake 3.22.1, and Bazel 4.2.2 PiperOrigin-RevId: 421658559 -- d002bb3dc5cd1fc5b4cbd79a450efc894caa567c by Chris Kennelly <ckennelly@google.com>: Add a small microbenchmark for absl::bit_width. PiperOrigin-RevId: 421604852 -- 131b057d1b76ecd7170421b48d661bb958ff676b by Evan Brown <ezb@google.com>: Adds a disabled test for EBO in nested `CompressedTuple`s. PiperOrigin-RevId: 421413134 -- e34c7876d3a1212d90c73c030ccae6169b682d43 by Jorg Brown <jorg@google.com>: Show users a better error message if they pass a pointer to absl::Uniform. PiperOrigin-RevId: 421090472 GitOrigin-RevId: 0db7f4046f9b59c0f8c3df2f0eb7fd88fc328439 Change-Id: I5a004e8d17e974fa4897a09d1466ae8fc65dfdbb
* | Export of internal Abseil changesGravatar Abseil Team2022-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 389189dbb322df0d0468ab13edf7dc185dc63833 by Abseil Team <absl-team@google.com>: absl str_format.h can compile with -Wconversion and -Wsign-compare PiperOrigin-RevId: 420799960 -- 762e5adc429fc143756c42fe92fe8073c87c075f by Abseil Team <absl-team@google.com>: GetStackTraceWithContext: Fix min_dropped_frames when no frames are recorded Previously, if there were still frames to skip, they would be included in min_dropped_frames. PiperOrigin-RevId: 420766341 -- 7d4374b8eaa410f4f98ec03d6a8997dccadfb271 by Abseil Team <absl-team@google.com>: absl::flags compiles with -Wconversion and -Wsign-compare PiperOrigin-RevId: 420476807 -- 5f00f7805419d725fa1ff57b388e4c0750d1d6b0 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 420282152 -- bd5471fc34956acf3888bf90287b2aee4415c96d by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 420282033 -- 61c78020804e4290e9b2fe151aeaf99b198716ee by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 420281867 -- dbe3aad24b65ea11664401a307ea3d2f28e8a7b9 by Derek Mauro <dmauro@google.com>: Remove the incorrect test for the availability of [[nodiscard]] It should have been ABSL_HAVE_CPP_ATTRIBUTE(nodiscard) instead of ABSL_HAVE_ATTRIBUTE(nodiscard). As a result, some code is not compliant with [[nodiscard]], so we cannot simply correct the availability test. Recommend that C++17-only code use the standard [[nodiscard] directly. PiperOrigin-RevId: 420150702 GitOrigin-RevId: 389189dbb322df0d0468ab13edf7dc185dc63833 Change-Id: Idf6ebae3c4edd945c9032c7db3d0ab32d16e8078
* | Export of internal Abseil changesGravatar Abseil Team2021-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 3fad46c668edd864a62511f2a6875b8b79e38f34 by Evan Brown <ezb@google.com>: Use switches instead of lookup tables for zap_desig_waker and ignore_waiting_writers so that we can avoid dTLB misses. See, e.g., https://godbolt.org/z/a7Gb9vzzj. Also, now that these are functions, follow function style in naming and comments. PiperOrigin-RevId: 418654693 -- ba5107744023a4e9163a44d706fbe8e4a1bc0fd9 by Abseil Team <absl-team@google.com>: Check for Clang before attempting to expand __clang_major__. This avoids a warning about an undefined macro on Windows when compiling with MinGW-GCC. PiperOrigin-RevId: 418287329 GitOrigin-RevId: 3fad46c668edd864a62511f2a6875b8b79e38f34 Change-Id: I28104980c4d3b204537b248447a6bd1022c9ef5d
* | Export of internal Abseil changesGravatar Abseil Team2021-12-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- cca8a0c0d709803ce3413861ccbdb1b47e8fdcef by Abseil Team <absl-team@google.com>: Add AssertHeld() to SpinLock. PiperOrigin-RevId: 418034654 -- 9e95a0e614b4cd7929d8db4324ca69d7be5351b2 by Evan Brown <ezb@google.com>: Make btree use an unsigned size_type (size_t). This brings btree in line with std::set, et al., which are required to use an unsigned size type - see https://en.cppreference.com/w/cpp/container/set. Also avoid some warnings about comparing integers of different signs. PiperOrigin-RevId: 418014466 GitOrigin-RevId: cca8a0c0d709803ce3413861ccbdb1b47e8fdcef Change-Id: I2b951cf1d69a3bb9c8dc236c69ab4a06b45047ea
* | Export of internal Abseil changesGravatar Abseil Team2021-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 1e25fb5996193524bf2f75781f1e6bdcdf972a3a by Gennadiy Rozental <rogeeff@google.com>: Introduce enums to represent lower and upper thresholds for LogSeverity. PiperOrigin-RevId: 417414673 -- abfddb3a6ad8ce4849fbb6dadb34d7d6295def0f by Abseil Team <absl-team@google.com>: Restore __arch64__ macro check for SPARC PiperOrigin-RevId: 416798208 PiperOrigin-RevId: 416688543 GitOrigin-RevId: 1e25fb5996193524bf2f75781f1e6bdcdf972a3a Change-Id: I424dd98e5e07420d5f9dfd191f2bfc06036e2bd1
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 18:51:57 +0000