Chiebot-Mirror/abseil-cpp - abseil-cpp - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Ben Niu	4c015dbb49	Exclude unsupported x64 intrinsics from ARM64EC (#1135 ) 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.	3 years ago
Abseil Team	5ed77665c4	Export of internal Abseil changes -- 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	3 years ago
Abseil Team	cfbf5bf948	Export of internal Abseil changes -- 77e710b0ced5792a328e88bcb938a41484bf4cdc by Saleem Abdulrasool <abdulras@google.com>: absl: add an implementation for UnscaledCycleClock on RISCV Add an implementation for UnscaledCycleClock on RISC-V targets. PiperOrigin-RevId: 395982312 -- 84430fce6760c488ca36401cd530f44268ac710d by Martijn Vels <mvels@google.com>: Harden CordRepBtreeReader against reading up to or beyond EOF This change hardens the reader to Next() calls on EOF situations. It changes the 'consumed()' property inside CordRepBtreeReader into a 'remaining()' property which is easier to understand and use than the 'consumed()' property QED the function documentation and use in cord.cc This change also adds the CharIterator test to the CordTest fixture enabling them to be run with btree cords. PiperOrigin-RevId: 395971732 -- 6557e628f2613169da8f693189223acb30e07833 by Martijn Vels <mvels@google.com>: Add AdvanceAndRead() test addressing the edge case surfaced in b/197776822 This adds a test explicitly exercising all possible AdvanceAndRead() calls on CharIterator. As per the linked bug, a partial or full small read ending exactly at the end of the last edge of a btree cord results in an attempt to read beyond that last edge and subsequent failure. We will fix the bug and enable these tests for btree in a subsequent change. PiperOrigin-RevId: 395958317 GitOrigin-RevId: 77e710b0ced5792a328e88bcb938a41484bf4cdc Change-Id: Ie6e21ce36980515165af7cf046cf199ecbe0ddb0	3 years ago
Abseil Team	b86fff162e	Export of internal Abseil changes -- 517dc7eba9878290fc93c6523dc6d6e2c49b8c1e by Abseil Team <absl-team@google.com>: Handle 'nan' in HumanReadableInt::ToInt64. PiperOrigin-RevId: 318121226 -- 4fa6103b46dbc1375d416810dba591ab4f4898d1 by Abseil Team <absl-team@google.com>: Promote `float`s to `double`s before formatting. This will bring StrFormat behavior more in line with that of sprintf. PiperOrigin-RevId: 318091841 -- e4083a4b64b077d8520ccd8e0ca90da24f4ea24d by Abseil Team <absl-team@google.com>: Google-internal changes only. PiperOrigin-RevId: 318069900 -- ab24f60127db089bccaf5fb7d2d1967c76f34768 by Greg Falcon <gfalcon@google.com>: Inclusive language fix: Stop using blacklist/whitelist terminology in Abseil. PiperOrigin-RevId: 317925379 -- 52b56a27a773ea7c10ea8fd456ed606b9d778947 by Abseil Team <absl-team@google.com>: Add test for floats and label tests for double properly. PiperOrigin-RevId: 317916380 -- 0f405960ab5b34d673244fda8bb9141c8f5c1a4f by Abseil Team <absl-team@google.com>: Remove the static initialization of global variables used by absl::Mutex as requested by Chromium PiperOrigin-RevId: 317911430 -- ce8cb49d8f4f68950fd111682657ba57d5a09ca0 by Abseil Team <absl-team@google.com>: Internal Change PiperOrigin-RevId: 317864956 -- a781948e09fb8406d21a494b2fa4f78edaf9c2ea by Abseil Team <absl-team@google.com>: Swap ABSL_DLL / ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES order to fix clang-cl builds. PiperOrigin-RevId: 317858053 -- 4ba197f0dd2cbf8f9b96cebffd878c8847d6ce8d by Gennadiy Rozental <rogeeff@google.com>: Migrate use of annotation macros to ABSL namespaced names PiperOrigin-RevId: 317792057 GitOrigin-RevId: 517dc7eba9878290fc93c6523dc6d6e2c49b8c1e Change-Id: I1a0c04d01adbdc5106b68fd69c97c31f822e11dc	5 years ago
Abseil Team	768eb2ca28	Export of internal Abseil changes -- f012012ef78234a6a4585321b67d7b7c92ebc266 by Laramie Leavitt <lar@google.com>: Slight restructuring of absl/random/internal randen implementation. Convert round-keys.inc into randen_round_keys.cc file. Consistently use a 128-bit pointer type for internal method parameters. This allows simpler pointer arithmetic in C++ & permits removal of some constants and casts. Remove some redundancy in comments & constexpr variables. Specifically, all references to Randen algorithm parameters use RandenTraits; duplication in RandenSlow removed. PiperOrigin-RevId: 312190313 -- dc8b42e054046741e9ed65335bfdface997c6063 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 312167304 -- f13d248fafaf206492c1362c3574031aea3abaf7 by Matthew Brown <matthewbr@google.com>: Cleanup StrFormat extensions a little. PiperOrigin-RevId: 312166336 -- 9d9117589667afe2332bb7ad42bc967ca7c54502 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 312105213 -- 9a12b9b3aa0e59b8ee6cf9408ed0029045543a9b by Abseil Team <absl-team@google.com>: Complete IGNORE_TYPE macro renaming. PiperOrigin-RevId: 311999699 -- 64756f20d61021d999bd0d4c15e9ad3857382f57 by Gennadiy Rozental <rogeeff@google.com>: Switch to fixed bytes specific default value. This fixes the Abseil Flags for big endian platforms. PiperOrigin-RevId: 311844448 -- bdbe6b5b29791dbc3816ada1828458b3010ff1e9 by Laramie Leavitt <lar@google.com>: Change many distribution tests to use pcg_engine as a deterministic source of entropy. It's reasonable to test that the BitGen itself has good entropy, however when testing the cross product of all random distributions x all the architecture variations x all submitted changes results in a large number of tests. In order to account for these failures while still using good entropy requires that our allowed sigma need to account for all of these independent tests. Our current sigma values are too restrictive, and we see a lot of failures, so we have to either relax the sigma values or convert some of the statistical tests to use deterministic values. This changelist does the latter. PiperOrigin-RevId: 311840096 GitOrigin-RevId: f012012ef78234a6a4585321b67d7b7c92ebc266 Change-Id: Ic84886f38ff30d7d72c126e9b63c9a61eb729a1a	5 years ago