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

Author	SHA1	Message	Date
Abseil Team	8e088c5f3c	Export of internal Abseil changes -- 77cd6291781bc39e8472c706163d6951fe2ae573 by Derek Mauro <dmauro@google.com>: absl::uint128: Use intrinsics for more operations when available This change also inlines the division and modulus operators when intrinsics are available for better code generation. Fixes #987 PiperOrigin-RevId: 389895706 -- fa23339584599e07ebcb4d0a857e2553b017757c by Abseil Team <absl-team@google.com>: only hide retired flags if human-readable output is requested PiperOrigin-RevId: 389835452 -- f1111f2b88359d4b253d4d81681c8a488458a36e by Martijn Vels <mvels@google.com>: Add helpers IsFlat(), IsExternal(), etc to improve readability PiperOrigin-RevId: 389779333 -- 785b8712261e41695ebeeb64b4317f93b37adc11 by Martijn Vels <mvels@google.com>: Split off 'concat' and 'btree' RepMemoryUsageLeaf and RepMemoryUsageDataEdge PiperOrigin-RevId: 389701120 -- 5264bffebffc2b377bf7e18f0ce69a3ed38c6629 by CJ Johnson <johnsoncj@google.com>: Eagerly destroy `Callback` in `absl::Cleanup` PiperOrigin-RevId: 389678813 -- a05312f0668458e97c50ca932c8f974c1508ebf2 by Abseil Team <absl-team@google.com>: Have one instance of empty_group per program, rather than one per translation unit. https://stackoverflow.com/questions/185624/static-variables-in-an-inlined-function PiperOrigin-RevId: 389185845 GitOrigin-RevId: 77cd6291781bc39e8472c706163d6951fe2ae573 Change-Id: Iac8d9cb27707a9562c831c77a552d1fb4bb0405f	3 years ago
Abseil Team	9c6a50fdd8	Export of internal Abseil changes -- 4ff721439234e91caf6f7b772e5f554e7dd423c8 by Benjamin Barenblat <bbaren@google.com>: Remove endian-sensitivity from hash slow path Prior to this commit, the Abseil hash fast path was endian-agnostic, but the slow path assumed a little-endian platform. Change the slow path to be endian-correct, ensuring that values produced by the fast and slow paths are equal even on big-endian systems. PiperOrigin-RevId: 355424258 -- 7f4fe1aa4de46ad0a2ef19fa9c061fc12a7391ed by Abseil Team <absl-team@google.com>: Directly store CordzInfo in the InlineData data contents of InlineRep This greatly reduces the cost of coping and moving cords. Especially the move constructor and move assignment are now back to lean loads and stores without needing any CordzInfo lookups for tracked cords. PiperOrigin-RevId: 355409161 -- 3ca4ca84ed6d98f1e383ffd8d12c28876e905bb3 by Abseil Team <absl-team@google.com>: Add #include <unordered_map> PiperOrigin-RevId: 355386114 -- 30b0ffad0621971b3135148fcc9e183b0dd2a6bb by Abseil Team <absl-team@google.com>: Optimize Cord copy constructor This change avoids double stores of the Cord copy constructor from the zero init of the InlineData / InlineRep contents followed by the assignment and inlines the copy constructor. PiperOrigin-RevId: 355287939 -- 0c043fa7b6e41ca7cefc5edc1e17ad46223e4e77 by CJ Johnson <johnsoncj@google.com>: Now that the absl::Cleanup example returns absl::Status, since we decided on absl::FailedPreconditionError, the precondition should be a positive statement and then the check should be failure to adhere to that positive statement PiperOrigin-RevId: 355216923 -- 9ed922ca5d28fe8790ec6bc0837cf39fbcc92896 by Gennadiy Rozental <rogeeff@google.com>: Do not set mvsc linker flags for clang-cl (fixes #874) Import of https://github.com/abseil/abseil-cpp/pull/891 PiperOrigin-RevId: 355199380 GitOrigin-RevId: 4ff721439234e91caf6f7b772e5f554e7dd423c8 Change-Id: I3d9d2383549720d7a91f9108dfcd979ad6632fce	4 years ago
Abseil Team	20869f89ed	Export of internal Abseil changes -- cea62ebc5d31c62aabcb94c066d9be506f34baf6 by Abseil Team <absl-team@google.com>: Fix typo in `Cord::EndsWith()` docs PiperOrigin-RevId: 355023067 -- f89225a55476478ec167be50dea543f5414836f9 by Abseil Team <absl-team@google.com>: Add set_cordz_info() and get_cordz_info() methods to InlineData This change has preparations for future (optional) integration of CordzInfo sampling data into Cord's InlineData for non inlined cords. PiperOrigin-RevId: 354965340 -- 324057574aeb697bd3327cb905eb5bca16ade768 by Abseil Team <absl-team@google.com>: Fix two comment typos. PiperOrigin-RevId: 354952568 -- 5bb93ca3d57ead3633e1efde4aa28718987ef64f by CJ Johnson <johnsoncj@google.com>: Clarify doc comment for absl::Cleanup by using absl::Status return type and clarify the engaged state by surfacing the initial value in the public header. PiperOrigin-RevId: 354935253 -- ec95424594b24a1aec9bf7972b2355f37285506a by Abseil Team <absl-team@google.com>: Remove `preserve_most` attribute from CordRep::Destroy() PiperOrigin-RevId: 354921927 GitOrigin-RevId: cea62ebc5d31c62aabcb94c066d9be506f34baf6 Change-Id: Ibe1d66197db7ce9554594e07b1c6e7c6dea3c9da	4 years ago
Abseil Team	184d2f8364	Export of internal Abseil changes -- 8c77b14bdee3f4cafb8ba520d4d050b15a949fd4 by Derek Mauro <dmauro@google.com>: Fix absl::Cleanup usage example PiperOrigin-RevId: 354702001 -- 10365da7a0aacaa0c4774a4b618a76dff328611b by CJ Johnson <johnsoncj@google.com>: Swap the order of the C++11 and C++17 interfaces for absl::Cleanup to mirror the order used in the comment example PiperOrigin-RevId: 354675180 GitOrigin-RevId: 8c77b14bdee3f4cafb8ba520d4d050b15a949fd4 Change-Id: Ia2054b725ed737ff9e557cb3d973de7c34bc51b0	4 years ago
Abseil Team	a9a4956020	Export of internal Abseil changes -- c68f1886f5e8fd90eb0c2d2e68feaf00a7cdacda by CJ Johnson <johnsoncj@google.com>: Introduce absl::Cleanup to the OSS repo PiperOrigin-RevId: 354583156 -- 17030cf388e10f7eb959e3e566326d1072ce392e by Abseil Team <absl-team@google.com>: Internal change only PiperOrigin-RevId: 354574953 -- e979d7236d4f3252e79ddda6739b67a9a326bf6d by CJ Johnson <johnsoncj@google.com>: Internal change PiperOrigin-RevId: 354545297 -- 7ea02b3783f7f49ef97d86a8f6580a19cc57df14 by Abseil Team <absl-team@google.com>: Pre-allocate memory for vectors where the size is known. PiperOrigin-RevId: 354344576 -- 9246c7cb11f1d6444f79ebe25acc69a8a9b870e0 by Matt Kulukundis <kfm@google.com>: Add support for Elbrus 2000 (e2k) Import of https://github.com/abseil/abseil-cpp/pull/889 PiperOrigin-RevId: 354344013 -- 0fc93d359cc1fb307552e917b37b7b2e7eed822f by Abseil Team <absl-team@google.com>: Integrate CordRepRing logic into cord (but do not enable it) PiperOrigin-RevId: 354312238 -- eda05622f7da71466723acb33403f783529df24b by Abseil Team <absl-team@google.com>: Protect ignore diagnostic with "__has_warning". PiperOrigin-RevId: 354112334 -- 47716c5d8fb10efa4fdd801d28bac414c6f8ec32 by Abseil Team <absl-team@google.com>: Rearrange InlinedVector copy constructor and destructor to treat a few special cases inline and then tail-call a non-inlined routine for the rest. In particular, we optimize for empty vectors in both cases. Added a couple of benchmarks that copy either an InlVec<int64> or an InlVec<InlVec<int64>>. Speed difference: ``` BM_CopyTrivial/0 0.92ns +- 0% 0.47ns +- 0% -48.91% (p=0.000 n=11+12) BM_CopyTrivial/1 0.92ns +- 0% 1.15ns +- 0% +25.00% (p=0.000 n=10+9) BM_CopyTrivial/8 8.57ns +- 0% 10.72ns +- 1% +25.16% (p=0.000 n=10+12) BM_CopyNonTrivial/0 3.21ns +- 0% 0.70ns +- 0% -78.23% (p=0.000 n=12+10) BM_CopyNonTrivial/1 5.88ns +- 1% 5.51ns +- 0% -6.28% (p=0.000 n=10+8) BM_CopyNonTrivial/8 21.5ns +- 1% 15.2ns +- 2% -29.23% (p=0.000 n=12+12) ``` Note: the slowdowns are a few cycles which is expected given the procedure call added in that case. We decided this is a good tradeoff given the code size reductions and the more significant speedups for empty vectors. Size difference (as measured by nm): ``` BM_CopyTrivial from 1048 bytes to 326 bytes. BM_CopyNonTrivial from 749 bytes to 470 bytes. ``` Code size for a large binary drops by ~500KB (from 349415719 to 348906015 348906191). All of the benchmarks that showed a significant difference: Ones that improve with this CL: ``` BM_CopyNonTrivial/0 3.21ns +- 0% 0.70ns +- 0% -78.23% (p=0.000 n=12+10) BM_InlinedVectorFillString/0 0.93ns +- 0% 0.24ns +- 0% -74.19% (p=0.000 n=12+10) BM_InlinedVectorAssignments/1 10.5ns +- 0% 4.1ns +- 0% -60.64% (p=0.000 n=11+10) BM_InlinedVectorAssignments/2 10.7ns +- 0% 4.4ns +- 0% -59.08% (p=0.000 n=11+11) BM_CopyTrivial/0 0.92ns +- 0% 0.47ns +- 0% -48.91% (p=0.000 n=11+12) BM_CopyNonTrivial/8 21.5ns +- 1% 15.2ns +- 2% -29.23% (p=0.000 n=12+12) BM_StdVectorEmpty 0.47ns +- 1% 0.35ns +- 0% -24.73% (p=0.000 n=12+12) BM_StdVectorSize 0.46ns +- 2% 0.35ns +- 0% -24.32% (p=0.000 n=12+12) BM_SwapElements<LargeCopyableOnly>/0 3.44ns +- 0% 2.76ns +- 1% -19.83% (p=0.000 n=11+11) BM_InlinedVectorFillRange/256 20.7ns +- 1% 17.8ns +- 0% -14.08% (p=0.000 n=12+9) BM_CopyNonTrivial/1 5.88ns +- 1% 5.51ns +- 0% -6.28% (p=0.000 n=10+8) BM_SwapElements<LargeCopyableMovable>/1 4.19ns +- 0% 3.95ns +- 1% -5.63% (p=0.000 n=11+12) BM_SwapElements<LargeCopyableMovableSwappable>/1 4.18ns +- 0% 3.99ns +- 0% -4.70% (p=0.000 n=9+11) BM_SwapElements<LargeCopyableMovable>/0 2.41ns +- 0% 2.31ns +- 0% -4.45% (p=0.000 n=12+12) BM_InlinedVectorFillRange/64 8.25ns +- 0% 8.04ns +- 0% -2.51% (p=0.000 n=12+11) BM_SwapElements<LargeCopyableOnly>/1 82.4ns +- 0% 81.5ns +- 0% -1.06% (p=0.000 n=12+12) ``` Ones that get worse with this CL: ``` BM_CopyTrivial/1 0.92ns +- 0% 1.15ns +- 0% +25.00% (p=0.000 n=10+9) BM_CopyTrivial/8 8.57ns +- 0% 10.72ns +- 1% +25.16% (p=0.000 n=10+12) BM_SwapElements<LargeCopyableMovableSwappable>/512 1.48ns +- 1% 1.66ns +- 1% +11.88% (p=0.000 n=12+12) BM_InlinedVectorFillString/1 11.5ns +- 0% 12.8ns +- 1% +11.62% (p=0.000 n=12+11) BM_SwapElements<LargeCopyableMovableSwappable>/64 1.48ns +- 2% 1.66ns +- 1% +11.66% (p=0.000 n=12+11) BM_SwapElements<LargeCopyableMovableSwappable>/1k 1.48ns +- 1% 1.65ns +- 2% +11.32% (p=0.000 n=12+12) BM_SwapElements<LargeCopyableMovable>/512 1.48ns +- 2% 1.58ns +- 4% +6.62% (p=0.000 n=11+12) BM_SwapElements<LargeCopyableMovable>/1k 1.49ns +- 2% 1.58ns +- 3% +6.05% (p=0.000 n=12+12) BM_SwapElements<LargeCopyableMovable>/64 1.48ns +- 2% 1.57ns +- 4% +6.04% (p=0.000 n=11+12) BM_InlinedVectorFillRange/1 4.81ns +- 0% 5.05ns +- 0% +4.83% (p=0.000 n=11+11) BM_InlinedVectorFillString/8 79.4ns +- 1% 83.1ns +- 1% +4.64% (p=0.000 n=10+12) BM_StdVectorFillString/1 16.3ns +- 0% 16.6ns +- 0% +2.13% (p=0.000 n=11+8) ``` PiperOrigin-RevId: 353906786 -- 8e26518b3cec9c598e5e9573c46c3bd1b03a67ef by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 353737330 -- f206ae0983e58c9904ed8b8f05f9caf564a446be by Matt Kulukundis <kfm@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 353682256 GitOrigin-RevId: c68f1886f5e8fd90eb0c2d2e68feaf00a7cdacda Change-Id: I5790c1036c4f543c701d1039848fabf7ae881ad8	4 years ago