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* Rollback of PR #1349: direct_mmap: Use off_t on linux...Abseil Team2023-01-101-2/+3
| | | | | PiperOrigin-RevId: 501014555 Change-Id: Ie204d307a4e537935a04c0f23bb13532e3c84bc8
* Replace generic 'base64 encoding' terminology with the specific RFCs they match.Abseil Team2023-01-091-9/+7
| | | | | | | | | Remove duplicate documentation for two variants of Base64EscapeInternal(). Clarify role of base64 char array input (controls web-safe or not). PiperOrigin-RevId: 500867221 Change-Id: Ie316a7ddd60794e041c5b9b39e9ab5b66ed565a6
* Clarify that Base64 unescaping methods expect their inputs to match ↵Abseil Team2023-01-091-10/+11
| | | | | | | particular RFC specifications. PiperOrigin-RevId: 500809781 Change-Id: I34d089343321f7658db8252ad29ff1824e6dbef2
* Refactor InlineData to allow for memory sanitizer changes step 1Martijn Vels2023-01-092-65/+97
| | | | | PiperOrigin-RevId: 500765473 Change-Id: Iaa3f9fdee6c9f4322bc8995b0d381cf1c8cb1349
* Use "#if GTEST_HAS_DEATH_TEST" instead of "#ifdef GTEST_HAS_DEATH_TEST"Tom Hughes2023-01-092-2/+2
| | | | | | | | This is consistent with the rest of the GTEST_HAS_DEATH usages in the code and the example in gtest-port.h. PiperOrigin-RevId: 500740093 Change-Id: I2acc158116b0e8bccc8ab45d75c8059828a4c251
* Merge pull request #1356 from MBkkt:patch-6Copybara-Service2023-01-093-0/+3
|\ | | | | | | | | PiperOrigin-RevId: 500726761 Change-Id: I42fbd4d2d8015e907b3c40417d35be2bbb63085e
| * Fix missing includeValery Mironov2023-01-061-0/+1
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* | Replace absl::Hash for inputs from 9 to 16 bytes according to AlphaZero findingsAbseil Team2023-01-073-3/+19
| | | | | | | | | | PiperOrigin-RevId: 500401844 Change-Id: I6d0909a8e395c914861dd034824a34737a52d71f
* | Merge pull request #1349 from kraj:remove-off64_tCopybara-Service2023-01-061-3/+2
|\ \ | | | | | | | | | | | | PiperOrigin-RevId: 500300819 Change-Id: Iacff97071d158843d687c811b0d78d4ddeba9039
| * | direct_mmap: Use off_t on linuxKhem Raj2022-12-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | off64_t is not provided without defining _LARGEFILE64_SOURCE on musl this define is not defined automatically like glibc where it gets defined when _GNU_SOURCE is defined. Using off_t makes it portable across musl/glibc and for using 64bit off_t on glibc 32bit systems -D_FILE_OFFSET_BITS=64 can be defined during build via CXXFLAGS Signed-off-by: Khem Raj <raj.khem@gmail.com>
* | | Require 64-bit builds on x86 to use AcceleratedCrcMemcpyEngineDerek Mauro2023-01-053-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | This also ensures that there is only one definition of GetArchSpecificEngines by moving the condition to a common place. PiperOrigin-RevId: 500038304 Change-Id: If0c55d701dfdc11a1a9c8c1b34eb220435529ffb
* | | In sanitizer mode, detect when invalidated iterators are compared.Evan Brown2023-01-052-13/+25
| |/ |/| | | | | | | PiperOrigin-RevId: 499964205 Change-Id: I45a1d62a5e093921946e7c3c7ab31480252b330e
* | Move description of escaping to code that does the escaping rather than the ↵Abseil Team2023-01-051-10/+12
| | | | | | | | | | | | | | | | | | CalculateBase64EscapedLenInternal helper method. Note that output padding is conditional on do_padding. PiperOrigin-RevId: 499901986 Change-Id: I8c1d28fe372b3e0e2216654db83f949caa297892
* | Remove ABSL_INTERNAL_UNREACHABLEDerek Mauro2023-01-041-3/+0
| | | | | | | | | | | | | | This is now available as the public symbol ABSL_UNREACHABLE(). PiperOrigin-RevId: 499578459 Change-Id: Ib36c1826eb733271a6b02e81d6c3d088b255180a
* | Require 64-bit builds on x86 to use CRC32 hardware accelerationDerek Mauro2023-01-041-2/+4
| | | | | | | | | | | | | | | | 32-bit builds with SSE 4.2 do exist, and these builds do not work without this patch. PiperOrigin-RevId: 499498979 Change-Id: I0ade09068804655652c07d0f1ef13554464a1558
* | Suggest similar flags in case of undefined flags.Abseil Team2023-01-043-4/+148
| | | | | | | | | | | | | | Using Damerau-Levenshtein distance to calculate potential candidates to suggest. PiperOrigin-RevId: 499449034 Change-Id: I805aafefcd0f4f85585ac33a041c15360619c96a
* | Minor build/whitespace changesDerek Mauro2023-01-031-0/+1
|/ | | | | PiperOrigin-RevId: 499292396 Change-Id: I3c66754169d7d7e304d5b973c0872690b79f59c5
* Minor include/whitespace changesDerek Mauro2022-12-282-0/+2
| | | | | PiperOrigin-RevId: 498192454 Change-Id: Ib6d251b9154322ae873477b44cf7265a74ce11f4
* Add a comment about the layout of the fields in ThreadIdentityAbseil Team2022-12-281-0/+4
| | | | | PiperOrigin-RevId: 498179140 Change-Id: Ie18b68e6313817b4f41fec6b10dd878436431730
* [NFC] fix typo in comment.Abseil Team2022-12-271-1/+1
| | | | | PiperOrigin-RevId: 498048994 Change-Id: Iee969b9171921e3ffdca2610f9b93b53678d0b9d
* Clean up the XRay annotation leftover on mutex.Abseil Team2022-12-271-7/+7
| | | | | PiperOrigin-RevId: 497998566 Change-Id: I8d43311e280a5ea46c42abed55be62cd70d4d54a
* Fix a bug in iterator validation code in which we don't update the table's ↵Evan Brown2022-12-222-1/+16
| | | | | | | reserved growth if the reservation wouldn't grow the table. PiperOrigin-RevId: 497246219 Change-Id: I9671236f56d10851c49de71c21899368be6c3a00
* Change Bool to BoolT in order to avoid a macro conflict from X11/Xlib.hJorg Brown2022-12-221-3/+3
| | | | | PiperOrigin-RevId: 497232675 Change-Id: Ic3cabbb85d90eb4f32a4bee17207e73475258e4b
* Replace ABSL_INTERNAL_UNREACHABLE with ABSL_UNREACHABLE()Derek Mauro2022-12-224-7/+10
| | | | | PiperOrigin-RevId: 497197704 Change-Id: I3865a874e04f6f55a1ab374b03451535a86bc5a3
* Update `FixedArray` doc comments to match actual template param namesLawrence Wolf-Sonkin2022-12-221-5/+4
| | | | | | | | | | * The template parameter provided to `FixedArray` for the number of inline elements is named `N` * If left defaulted, which is recommended, `FixedArray` chooses the number of inline elements by itself * The `inline_elements` static class member contains the actual number of inlinable elements * Previously the docs referred to the template parameter as `inline_elements` instead of `N`. PiperOrigin-RevId: 497185546 Change-Id: I321092826d956704c0074062d2a7b924b28e36d0
* Add a NOLINT to ABSL_UNREACHABLE() to disable the clang-tidy warningDerek Mauro2022-12-221-0/+1
| | | | | | | that the assert can be a static_assert PiperOrigin-RevId: 497161039 Change-Id: If714cb25ca1d9481ada94b3b5b4cb16a4dd4e85a
* Fix some -Wshorten-64-to-32 for 32bit platformAbseil Team2022-12-222-17/+18
| | | | | PiperOrigin-RevId: 497124964 Change-Id: Ia5d7005fa9bc422c1ac9a47d5cbaf8c6b8f06d84
* Remove unneeded "friends" from KernelTimeout.Abseil Team2022-12-211-5/+3
| | | | | PiperOrigin-RevId: 496974198 Change-Id: I73b4013a2ad9fd37650d788cbd1e758b327b59d2
* Adds ABSL_UNREACHABLE(), a public symbol to replace ABSL_INTERNAL_UNREACHABLEDerek Mauro2022-12-212-24/+61
| | | | | | | | | | | ABSL_UNREACHABLE() is an unreachable statement. A program which reaches one has undefined behavior, and the compiler may optimize accordingly. The behavior is changed to abort the program in !NDEBUG or ABSL_OPTION_HARDENED modes. PiperOrigin-RevId: 496917150 Change-Id: If036b2d9567933fa266fbcd33f3f98c682ad7f41
* bits_benchmark: Fix typo to benchmark the intended functionDerek Mauro2022-12-201-12/+12
| | | | | PiperOrigin-RevId: 496788919 Change-Id: I8867f8b884b81aa2f7b6d08dabd90c75965d1939
* Tagged most functions in absl/time/time.h as ABSL_ATTRIBUTE_CONST_FUNCTION ↵Abseil Team2022-12-203-180/+263
| | | | | | | | | or ABSL_ATTRIBUTE_PURE_FUNCTION However, both absl_attributes are now unimplemented to avoid breaking existing users. PiperOrigin-RevId: 496769399 Change-Id: I9c00cb60b885526300d744f9ea7c0f2178f092bb
* Restrict visibility of absl/container:hash_function_defaults.Chris Kennelly2022-12-191-0/+3
| | | | | PiperOrigin-RevId: 496514638 Change-Id: I45b8dfe01c83915c460711339d2d8c38604c8d81
* In sanitizer mode, add generations to swisstable iterators and backing ↵Evan Brown2022-12-195-63/+310
| | | | | | | arrays so that we can detect invalid iterator use. PiperOrigin-RevId: 496455788 Change-Id: I83df92828098a3ef1181b4e454f3ac5d3ac7a2f2
* Adds -Wsign-conversion to LLVM warnings for non-test code sinceDerek Mauro2022-12-193-0/+3
| | | | | | | | | | Chromium builds Abseil with this warning. Tests are still built with -Wno-sign-conversion due to many pre-existing warnings. PiperOrigin-RevId: 496438882 Change-Id: Ic47c893e5289d3d45cd5717ba02d5499a3b346fa
* Adds -Wshorten-64-to-32 to LLVM warnings for non-test code sinceDerek Mauro2022-12-193-0/+3
| | | | | | | | | | Chromium builds Abseil with this warning. Tests are still built with -Wno-shorten-64-to-32 due to many pre-existing warnings. PiperOrigin-RevId: 496421954 Change-Id: I796ca444967474df0bdeb3fe82f85512dab11d8f
* Fix a -Wsign-conversion and some -Wshorten-64-to-32.Andy Getzendanner2022-12-195-6/+33
| | | | | PiperOrigin-RevId: 496397075 Change-Id: Ib44467cf5704b9147c7fd197e8343a666fada1c3
* Optimize raw_hash_set CountLeadingEmptyOrDeleted() on ArmConnal de Souza2022-12-191-6/+8
| | | | | | | | name old cpu/op new cpu/op delta BM_Group_CountLeadingEmptyOrDeleted 0.98ns ± 0% 0.78ns ± 0% -20.51% (p=0.000 n=10+10) PiperOrigin-RevId: 496397005 Change-Id: I1c6b325b14566da194f21d3387b6f4d838bf0b34
* Use ABSL_LOG instead of LOG in absl::LogStreamer.Andy Getzendanner2022-12-173-5/+5
| | | | | PiperOrigin-RevId: 496112752 Change-Id: I0a7a8854a642f63ddd3ba67b9268bbb0803118e9
* Replace absl::IsConvertibleHelper with std::is_convertibleAbseil Team2022-12-161-20/+1
| | | | | PiperOrigin-RevId: 495898835 Change-Id: Id2150a0505020ac2be4487e904d167a26316260c
* Add MakeAbsNs to KernelTimeout.Abseil Team2022-12-151-2/+17
| | | | | | | | | Rather than add new friends every time a new (internal) use arises, just expose the timestamp. PiperOrigin-RevId: 495722262 Change-Id: I25d2ce64769dc58cbe634259f07c600ce6c1e714
* Fix the documentation of the atomic_hook.h registration functions to ↵Greg Falcon2022-12-151-10/+11
| | | | | | | | | | | correctly state that only the first registered hook will be honored. The comments that imply otherwise were never true, and were a leftover artifact during initial development of the feature. Also remove a TODO() I gave myself years ago; this is never going to happen and isn't worth the bother. PiperOrigin-RevId: 495687371 Change-Id: I63f8ef57d659075bf290caae0617ea61ceb2c1db
* Add the ability to turn on warnings that get disabled in testsDerek Mauro2022-12-155-111/+271
| | | | | | | | | | | | | in GCC and LLVM build configs This was accomplished by adding GccStyleFilterAndCombine() in copts.py Previously, if we had a default warning of the form -Wwarning, adding -Wno-warning to the list of test warnings would just add conflicting flags. We now filter -Wwarning if -Wno-warning is added to the test warnings. PiperOrigin-RevId: 495683815 Change-Id: I5dfd8a30b0be09d6b48237f61d598230ab9027db
* Merge pull request #1341 from h-vetinari:pkgconfigCopybara-Service2022-12-142-7/+50
|\ | | | | | | | | PiperOrigin-RevId: 495308617 Change-Id: Ic373a80908e513ce3cc4a9156d49aac8ebf89024
| * add pkgconfig metadata for shared windows buildsH. Vetinari2022-12-102-7/+50
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* | Prevent all CHECK functions from expanding macros for the error string.Mike Kruskal2022-12-139-193/+329
| | | | | | | | | | | | | | | | | | This was likely an unintentional behavior change made a while ago while trying to reduce duplication. The new behavior will always include the unexpanded macro in the error string. For example, `CHECK_EQ(MACRO(x), MACRO(y))` will now output "MACRO(x) == MACRO(y)" if it fails. Before this change, CHECK and QCHECK were the only macros that had this behavior. Not using function-like macro aliases is a possible alternative here, but unfortunately that would flood the macro namespace downstream with CHECK* and break existing code. PiperOrigin-RevId: 495138582 Change-Id: I6a1afd89a6b9334003362e5d3e55da68f86eec98
* | Add prefetch to crc32Ilya Tokar2022-12-134-1/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We already prefetch in case of large inputs, do the same for medium sized inputs as well. This is mostly neutral for performance in most cases, so this also adds a new bench with working size >> cache size to ensure that we are seeing performance benefits of prefetch. Main benefits are on AMD with hardware prefetchers turned off: AMD prefetchers on: name old time/op new time/op delta BM_Calculate/0 2.43ns ± 1% 2.43ns ± 1% ~ (p=0.814 n=40+40) BM_Calculate/1 2.50ns ± 2% 2.50ns ± 2% ~ (p=0.745 n=39+39) BM_Calculate/100 9.17ns ± 1% 9.17ns ± 2% ~ (p=0.747 n=40+40) BM_Calculate/10000 474ns ± 1% 474ns ± 2% ~ (p=0.749 n=40+40) BM_Calculate/500000 22.8µs ± 1% 22.9µs ± 2% ~ (p=0.298 n=39+40) BM_Extend/0 1.38ns ± 1% 1.38ns ± 1% ~ (p=0.651 n=40+40) BM_Extend/1 1.53ns ± 2% 1.53ns ± 1% ~ (p=0.957 n=40+39) BM_Extend/100 9.48ns ± 1% 9.48ns ± 2% ~ (p=1.000 n=40+40) BM_Extend/10000 474ns ± 2% 474ns ± 1% ~ (p=0.928 n=40+40) BM_Extend/500000 22.8µs ± 1% 22.9µs ± 2% ~ (p=0.331 n=40+40) BM_Extend/100000000 4.79ms ± 1% 4.79ms ± 1% ~ (p=0.753 n=38+38) BM_ExtendCacheMiss/10 25.5ms ± 2% 25.5ms ± 2% ~ (p=0.988 n=38+40) BM_ExtendCacheMiss/100 23.1ms ± 2% 23.1ms ± 2% ~ (p=0.792 n=40+40) BM_ExtendCacheMiss/1000 37.2ms ± 1% 28.6ms ± 2% -23.00% (p=0.000 n=38+40) BM_ExtendCacheMiss/100000 7.77ms ± 2% 7.74ms ± 2% -0.45% (p=0.006 n=40+40) AMD prefetchers off: name old time/op new time/op delta BM_Calculate/0 2.43ns ± 2% 2.43ns ± 2% ~ (p=0.351 n=40+39) BM_Calculate/1 2.51ns ± 2% 2.51ns ± 1% ~ (p=0.535 n=40+40) BM_Calculate/100 9.18ns ± 2% 9.15ns ± 2% ~ (p=0.120 n=38+39) BM_Calculate/10000 475ns ± 2% 475ns ± 2% ~ (p=0.852 n=40+40) BM_Calculate/500000 22.9µs ± 2% 22.8µs ± 2% ~ (p=0.396 n=40+40) BM_Extend/0 1.38ns ± 2% 1.38ns ± 2% ~ (p=0.466 n=40+40) BM_Extend/1 1.53ns ± 2% 1.53ns ± 2% ~ (p=0.914 n=40+39) BM_Extend/100 9.49ns ± 2% 9.49ns ± 2% ~ (p=0.802 n=40+40) BM_Extend/10000 475ns ± 2% 474ns ± 1% ~ (p=0.589 n=40+40) BM_Extend/500000 22.8µs ± 2% 22.8µs ± 2% ~ (p=0.872 n=39+40) BM_Extend/100000000 10.0ms ± 3% 10.0ms ± 4% ~ (p=0.355 n=40+40) BM_ExtendCacheMiss/10 196ms ± 2% 196ms ± 2% ~ (p=0.698 n=40+40) BM_ExtendCacheMiss/100 129ms ± 1% 129ms ± 1% ~ (p=0.602 n=36+37) BM_ExtendCacheMiss/1000 88.6ms ± 1% 57.2ms ± 1% -35.49% (p=0.000 n=36+38) BM_ExtendCacheMiss/100000 14.9ms ± 1% 14.9ms ± 1% ~ (p=0.888 n=39+40) Intel skylake: BM_Calculate/0 2.49ns ± 2% 2.44ns ± 4% -2.15% (p=0.001 n=31+34) BM_Calculate/1 3.04ns ± 2% 2.98ns ± 9% -1.95% (p=0.003 n=31+35) BM_Calculate/100 8.64ns ± 3% 8.53ns ± 5% ~ (p=0.065 n=31+35) BM_Calculate/10000 290ns ± 3% 285ns ± 7% -1.80% (p=0.004 n=28+34) BM_Calculate/500000 11.8µs ± 2% 11.6µs ± 8% -1.59% (p=0.003 n=26+34) BM_Extend/0 1.56ns ± 1% 1.52ns ± 3% -2.44% (p=0.000 n=26+35) BM_Extend/1 1.88ns ± 3% 1.83ns ± 6% -2.17% (p=0.001 n=27+35) BM_Extend/100 9.31ns ± 3% 9.13ns ± 7% -1.92% (p=0.000 n=33+38) BM_Extend/10000 290ns ± 3% 283ns ± 3% -2.45% (p=0.000 n=32+38) BM_Extend/500000 11.8µs ± 2% 11.5µs ± 8% -1.80% (p=0.001 n=35+37) BM_Extend/100000000 6.39ms ±10% 6.11ms ± 8% -4.34% (p=0.000 n=40+40) BM_ExtendCacheMiss/10 36.2ms ± 7% 35.8ms ±14% ~ (p=0.281 n=33+37) BM_ExtendCacheMiss/100 26.9ms ±15% 25.9ms ±12% -3.93% (p=0.000 n=40+40) BM_ExtendCacheMiss/1000 23.8ms ± 5% 23.4ms ± 5% -1.68% (p=0.001 n=39+40) BM_ExtendCacheMiss/100000 10.1ms ± 5% 10.0ms ± 4% ~ (p=0.051 n=39+39) PiperOrigin-RevId: 495119444 Change-Id: I67bcf3b0282b5e1c43122de2837a24c16b8aded7
* | Remove obsolete RFC 3548 from escaping.cc's Base64UnescapeInternal. (Note ↵Abseil Team2022-12-121-3/+1
| | | | | | | | | | | | | | that the proper non-obsolete RFC 4648 is already listed in escaping.h's Base64Escape() documentation) PiperOrigin-RevId: 494821805 Change-Id: Id3bffcb968a7c865c9a6bcbf241870c3674601ba
* | Only build the section of flag_benchmark used for viewing theDerek Mauro2022-12-123-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | disassembly under LLVM. Due to the issue described in https://github.com/abseil/abseil-cpp/issues/1340 and https://github.com/google/benchmark/commit/8545dfb3ea301f5c77626a046d4756ef9f2e4970 it no longer builds under GCC. The other changes are necessary to fix the build using the latest benchmark snapshot Fixes #1340 PiperOrigin-RevId: 494809290 Change-Id: I4a03b2e2dcbdc273e59f1f09f204322e388e7cea
* | Add a define for HWCAP_CPUID on platforms that are missing itDerek Mauro2022-12-121-0/+4
| | | | | | | | | | PiperOrigin-RevId: 494749165 Change-Id: I8d855be9c508a9fdfb5f60e87471c0947057ecc9
* | Allow Cord to store chunked checksumsDerek Mauro2022-12-1116-35/+544
| | | | | | | | | | PiperOrigin-RevId: 494587777 Change-Id: I41504edca6fcf750d52602fa84a33bc7fe5fbb48
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