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* Create `absl::container_internal::c_for_each_fast` for SwissTable.Vitaly Goldshteyn2024-06-201-2/+9
| | | | | | | | | | | | | | | | | | This function is aimed to achieve faster iteration through the entire hash table. It is not ready to be used by the public and stays in `container_internal` namespace. Differences with `absl::c_for_each`: 1. No guarantees on order of iteration. Although for the hash table it is partially not guaranteed already. But we do not even guarantee that it is the same order as in the for loop range. De facto, the order is the same at the moment. 2. No mutating reentrance is allowed. Most notably erasing from the hash_table is not allowed. Based on microbenchmarks, there are following conclusions: 1. c_for_each_fast is clearly faster on big tables with 20-60% speedup. 2. Microbenchmarks show regression on a full small table without any empty slots. We should avoid recommending that for small tables. 3. It seems reasonable to use `c_for_each_fast` in places, where `skip_empty_or_deleted` has significant GCU usage. `skip_empty_or_deleted` usage signals that there are "gaps" between elements, so `c_for_each_fast` should be an improvement. PiperOrigin-RevId: 645142512 Change-Id: I279886b8c8b2545504c2bf7e037d27b2545e044d
* Use `IterateOverFullSlots` in `absl::erase_if` for hash table.Vitaly Goldshteyn2024-06-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `EraseIf` itself is not very hot function, but I want to use that as demonstration of the speed of iteration via `IterateOverFullSlots`. Motivation: 1. We are still going to save some resources. 2. It is the first step to implement faster `absl::c_for_each` that may give larger benefits. Will require readability considerations. `BM_EraseIf/num_elements:1000/num_erased:0` is just iteration and it gives 60% speed up. On smaller tables removing all elements shows 25% speed up. Note that on small tables erasing is much faster due to cl/592272653. ``` name old cpu/op new cpu/op delta BM_EraseIf/num_elements:10/num_erased:0 3.41ns ± 5% 3.03ns ± 3% -11.14% (p=0.000 n=37+35) BM_EraseIf/num_elements:1000/num_erased:0 6.06ns ± 3% 2.42ns ± 3% -60.05% (p=0.000 n=34+37) BM_EraseIf/num_elements:10/num_erased:5 5.90ns ± 3% 4.44ns ± 4% -24.88% (p=0.000 n=36+37) BM_EraseIf/num_elements:1000/num_erased:500 11.0ns ± 2% 9.2ns ± 2% -16.60% (p=0.000 n=35+37) BM_EraseIf/num_elements:10/num_erased:10 8.03ns ± 3% 5.77ns ± 2% -28.19% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:1000 9.00ns ± 3% 7.83ns ± 2% -12.98% (p=0.000 n=37+37) name old time/op new time/op delta BM_EraseIf/num_elements:10/num_erased:0 3.42ns ± 5% 3.04ns ± 3% -11.13% (p=0.000 n=37+36) BM_EraseIf/num_elements:1000/num_erased:0 6.07ns ± 3% 2.42ns ± 3% -60.10% (p=0.000 n=34+37) BM_EraseIf/num_elements:10/num_erased:5 5.93ns ± 3% 4.45ns ± 4% -24.89% (p=0.000 n=36+37) BM_EraseIf/num_elements:1000/num_erased:500 11.1ns ± 2% 9.2ns ± 2% -16.61% (p=0.000 n=35+37) BM_EraseIf/num_elements:10/num_erased:10 8.06ns ± 3% 5.79ns ± 2% -28.19% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:1000 9.03ns ± 3% 7.85ns ± 2% -12.98% (p=0.000 n=37+37) name old INSTRUCTIONS/op new INSTRUCTIONS/op delta BM_EraseIf/num_elements:10/num_erased:0 19.5 ± 1% 14.9 ± 0% -23.79% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:0 19.9 ± 0% 12.7 ± 0% -36.20% (p=0.000 n=37+37) BM_EraseIf/num_elements:10/num_erased:5 36.9 ± 1% 30.9 ± 0% -16.47% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:500 44.8 ± 0% 37.6 ± 0% -16.06% (p=0.000 n=37+37) BM_EraseIf/num_elements:10/num_erased:10 53.0 ± 1% 46.9 ± 0% -11.61% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:1000 69.8 ± 0% 62.6 ± 0% -10.32% (p=0.000 n=36+37) name old CYCLES/op new CYCLES/op delta BM_EraseIf/num_elements:10/num_erased:0 6.10 ± 7% 4.91 ± 1% -19.49% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:0 19.4 ± 1% 7.7 ± 2% -60.04% (p=0.000 n=37+37) BM_EraseIf/num_elements:10/num_erased:5 13.9 ± 4% 9.2 ± 3% -33.80% (p=0.000 n=37+37) BM_EraseIf/num_elements:1000/num_erased:500 35.5 ± 0% 29.5 ± 1% -16.74% (p=0.000 n=37+37) BM_EraseIf/num_elements:10/num_erased:10 20.8 ± 5% 13.5 ± 0% -35.07% (p=0.000 n=37+30) BM_EraseIf/num_elements:1000/num_erased:1000 28.9 ± 0% 25.1 ± 0% -13.06% (p=0.000 n=37+37) ``` PiperOrigin-RevId: 642016364 Change-Id: I8be6af5916bd45fd110bb0398c3ffe932a6a083f
* Add validation that hash/eq functors are consistent, meaning that `eq(k1, ↵Evan Brown2024-06-061-0/+2
| | | | | | | | | k2) -> hash(k1) == hash(k2)`. Also add missing includes/dependencies in flat_hash_map_test. PiperOrigin-RevId: 640959222 Change-Id: I8d99544af05e97310045e6149f6ef6f7c82e552d
* Add public aliases for default hash/eq types in hash-based containersDennis Kormalev2024-04-241-4/+17
| | | | | | | | | | | | | | | Generic user code sometimes wants to provide more flexibility for its own users and provide type arguments that are used as Hash/Eq in underlying containers. However, there is no sensible publicly available default value for it yet. This CL fixes this issue and provides publicly visible aliases that such user code can use. PiperOrigin-RevId: 627844757 Change-Id: I4c393007244ad8d998da02883c623eae1715c0df
* [absl] Re-use the existing `std::type_identity` backfill instead of ↵Lawrence Wolf-Sonkin2024-04-181-0/+1
| | | | | | | | | redefining it again * Specifically, using `absl::internal::type_identity_t` instead of a reimplementation thereof (`NoTypeDeduction`) in the `absl::InlinedVector` code PiperOrigin-RevId: 626055714 Change-Id: I3f5a9a1c25480bc4431edbcc4784e6bc8d257f8d
* Fix ClangTidy warnings in btree.h.Evan Brown2024-03-251-2/+2
| | | | | PiperOrigin-RevId: 618872032 Change-Id: I9fdfadff906494eb64cee976c02a1fff57923c79
* Do hashtablez sampling on the first insertion into an empty SOO hashtable.Evan Brown2024-03-191-0/+2
| | | | | | | | | When sampling triggers, we skip SOO and allocate a backing array. We must do this because the HashtablezInfoHandle is part of the heap allocation (along with the control bytes and slots). By default, we sample 1 in ~1024 hashtables when sampling is enabled. This will impact performance because (a) we won't benefit from SOO so we would have worse data locality (more cache/TLB misses), and (b) the backing array capacity will be 3 instead of 1 so (b.1) we skip the rehash after the second insertion and (b.2) we potentially waste up to two slots worth of memory. We also add an soo_capacity field to HashtablezInfo to allow for distinguishing which sampled tables may otherwise have been SOO - this will allow us to know approximately what fraction of tables are in SOO mode. PiperOrigin-RevId: 617252334 Change-Id: Ib48b7a4870bd74ea3ba923ed8f350a3b75dbb7d3
* Roll back extern template instatiations in swisstable due to binary size ↵Evan Brown2024-03-131-14/+0
| | | | | | | increases in shared libraries. PiperOrigin-RevId: 615497725 Change-Id: Ic29db8923ea4ea7cd0b01b396896fa9fff8c74b0
* Add extern templates for common swisstable types.Evan Brown2024-03-121-0/+14
| | | | | | | | Motivation: mitigate linker input size increase from swisstable optimizations. Note: the changes in raw_hash_set.h are fixing build errors that happened when adding the explicit instantiations. The change in unchecked_deref is because set iterators have const reference access whereas map iterators have mutable reference access and the function is never actually called for sets (it's used in raw_hash_map) so it wasn't needed before. I'm not sure why the soo_slot/soo_iterator problems didn't cause compile errors earlier. PiperOrigin-RevId: 615174043 Change-Id: Iac5eb2332a76e9b70021156fbb2b8def47a5391d
* Add absl_container_hash-based HashEq specializationDennis Kormalev2024-02-071-0/+4
| | | | | | | | | | | | | | SwissTable provides support for heterogeneous lookup in associative containers through transparent Hash and Eq types. However, it is not possible for user types to provide additional specializations to allow their types to use this functionality. This CL brings ability for user types to specify their own transparent absl_container_hash and (optionally) absl_container_eq inner types to achieve the same functionality. PiperOrigin-RevId: 604994859 Change-Id: I302486d292c9a18b7d4c77033227008f5539e354
* Type erased hash_slot_fn that depends only on key types (and hash function).Abseil Team2024-01-311-0/+3
| | | | | PiperOrigin-RevId: 603148301 Change-Id: Ie2e5702995c9e1ef4d5aaab23bc89a1eb5007a86
* Early return from destroy_slots for trivially destructible types in ↵Abseil Team2024-01-301-0/+2
| | | | | | | flat_hash_{*}. PiperOrigin-RevId: 602813933 Change-Id: I744fe438281755a141b2fd47e54ab9c6c0fad5a3
* Avoid export of testonly target absl::test_allocator in CMake buildsDerek Mauro2024-01-301-0/+1
| | | | | | | Closes #1536 PiperOrigin-RevId: 602764437 Change-Id: Ia5c20a3874262a2ddb8797f608af17d7e86dd6d6
* Use absl::NoDestructor for global HashtablezSampler.Abseil Team2024-01-241-0/+1
| | | | | PiperOrigin-RevId: 601156448 Change-Id: Id6d19bda7eb3acee11cfab3a95e611996d6ef4cc
* Migrate static objects to NoDestructor in tests, testing libraries and ↵Abseil Team2023-12-261-0/+2
| | | | | | | benchmarks. PiperOrigin-RevId: 593918110 Change-Id: Ide100c69b10e28011af17c7f82bb10eea072cad4
* Add a pragma to disable a maybe-uninitialized warning for GCC12+Abseil Team2023-12-191-0/+1
| | | | | PiperOrigin-RevId: 592301543 Change-Id: I97e4df805c7313896228430a50a7f991127f3e30
* Unit-tests to verify ABSL raw_hash_set does not double-hash in prodAbseil Team2023-12-121-0/+4
| | | | | PiperOrigin-RevId: 590337123 Change-Id: Ib98bbb5a5dadbce5e891567038e016f4da2efc0b
* Make `FlatHashMapPolicy` return `std::true_type` for relocatable objects.Abseil Team2023-11-201-0/+2
| | | | | | | This reduces produced binary size and can trigger even more optimizations in the future. PiperOrigin-RevId: 584136517 Change-Id: I3854833799f88f28b755ec53132925f0c3d468ab
* Roll back due to leak sanitizer reports.Aaron Jacobs2023-11-081-2/+0
| | | | | PiperOrigin-RevId: 580726428 Change-Id: I12b0f22c2084aef90bcca67536220a6bb550b57e
* Roll forward: Add sanitizer mode checks that element ↵Evan Brown2023-10-301-0/+2
| | | | | | | constructors/destructors don't make reentrant calls to raw_hash_set member functions. PiperOrigin-RevId: 577877803 Change-Id: I254c589b00cadec6ff95dfd60a8a38ab303c1af5
* Rollback: Add sanitizer mode checks that element constructors/destructors ↵Evan Brown2023-10-171-2/+0
| | | | | | | don't make reentrant calls to raw_hash_set member functions. PiperOrigin-RevId: 574232718 Change-Id: I8ef25fec00b76ee5fb9424e7614ca55edd6ba81b
* Add sanitizer mode checks that element constructors/destructors don't make ↵Evan Brown2023-10-161-0/+2
| | | | | | | reentrant calls to raw_hash_set member functions. PiperOrigin-RevId: 573897598 Change-Id: If40c23ac3cd9fff315ee18774e27c480cbca3a81
* Add missing headers in raw_hash_map.h.Evan Brown2023-10-121-0/+2
| | | | | PiperOrigin-RevId: 572979536 Change-Id: I4fceee0c52e4e6877e639860327462c7874719e7
* Re-submit with a fix for platforms without RTTI.Abseil Team2023-10-021-0/+1
| | | | | | | We test for `ABSL_INTERNAL_HAS_RTTI` in `absl::container_internal::TypeName` before calling `typeid`. PiperOrigin-RevId: 570101013 Change-Id: I1f2f9b2f475a6beae50d0b88718b17b296311155
* Add an internal wrapper for `abi::__cxa_demangle()`.Abseil Team2023-09-261-1/+0
| | | | | PiperOrigin-RevId: 568665135 Change-Id: I42ec9bc6cfe923777f7b60ea032c7b64428493c9
* Add an internal wrapper for `abi::__cxa_demangle()`.Abseil Team2023-09-261-0/+1
| | | | | PiperOrigin-RevId: 568652465 Change-Id: I9f72a11cb514eaf694dae589a19dc139891e7af2
* Replace BtreeAllocatorTest with individual test cases for copy/move/swap ↵Evan Brown2023-09-211-0/+1
| | | | | | | | | propagation (defined in test_allocator.h) and minimal alignment. Also remove some extraneous value_types from typed tests. The motivation is to reduce btree_test compile time. PiperOrigin-RevId: 567376572 Change-Id: I6ac6130b99faeadaedab8c2c7b05d5e23e77cc1e
* Move CountingAllocator into test_allocator.h and add some other allocators ↵Evan Brown2023-09-151-5/+6
| | | | | | | that can be shared between different container tests. PiperOrigin-RevId: 565693736 Change-Id: I59af987e30da03a805ce59ff0fb7eeae3fc08293
* Make PolicyTraits::transfer_uses_memcpy() true for node_hash_* tables.Evan Brown2023-09-121-0/+2
| | | | | | | This should enable binary size savings for now and more efficiency improvements with small buffer optimization. PiperOrigin-RevId: 564741270 Change-Id: Icf204d88256243eb60464439a52dd589d7a559cb
* Add a flat_hash_set_test that we use value_type member functions to ↵Evan Brown2023-09-121-0/+2
| | | | | | | | | read/write from value_types when we aren't allowed to memcpy them. The motivation is to prevent a bug in small buffer optimization for swisstables. PiperOrigin-RevId: 564726325 Change-Id: Id0df5d28d65c7586428001fcb266886988cd481e
* Include what you spellDmitri Gribenko2023-08-111-2/+2
| | | | | PiperOrigin-RevId: 555894810 Change-Id: I349c94e7c6e7ba1dbd817aa8e4340c1dada84654
* Migrate most RAW_LOGs and RAW_CHECKs in tests to regular LOG and CHECK.Andy Getzendanner2023-05-231-11/+10
| | | | | | | | | | | The non-RAW_ versions provide better output but weren't available when most of these tests were written. There are just a couple spots where RAW_ is actually needed, e.g. signal handlers and malloc hooks. Also fix a couple warnings in layout_test.cc newly surfaced because the optimizer understands CHECK_XX differently than INTERNAL_CHECK. PiperOrigin-RevId: 534584435 Change-Id: I8d36fa809ffdaae5a3813064bd602cb8611c1613
* In debug mode, detect cases of btree comparators that violate transitivity, ↵Evan Brown2023-04-121-0/+1
| | | | | | | | | i.e. comp(A,B) && comp(B,C) -> comp(A,C). When inserting a new element, we verify that the key is ordered correctly with respect to all the other values on the node, which can be done in constant time. PiperOrigin-RevId: 523729309 Change-Id: Idb5a5912a9aa5411d086cb9fa76791523046778a
* Workaround MSan false positive.Abseil Team2023-02-101-0/+1
| | | | | | | | | On Linux Kernels >= 5.4 MSan reports a false positive when accessing thread local storage data from loaded libraries. This was reported on Chromium (which on some build configurations uses absl as a dynamic library). More info here: crbug.com/1414573. PiperOrigin-RevId: 508645053 Change-Id: I5d5a97e1ee7230cc23f3934a4ec5594b883918b4
* Fix missing includes/dependenciesDerek Mauro2023-02-021-0/+2
| | | | | PiperOrigin-RevId: 506622658 Change-Id: I17ae2d97a6cadb7bdd8ebd0ec0dd3976568cb7e1
* Rollforward: in sanitizer mode, detect when references become invalidated by ↵Evan Brown2023-02-011-0/+1
| | | | | | | | | randomly rehashing on insertions when there is no reserved growth. Rollforward of ed59f62f8bbc5f05bcba2f89ee16f107e03813f2 PiperOrigin-RevId: 506314970 Change-Id: I7a654aef36bb169da9ea5c618789ee771f05fe28
* Rollback in sanitizer mode, detect when references become invalidated by ↵Abseil Team2023-01-311-1/+0
| | | | | | | | | randomly rehashing on insertions when there is no reserved growth. Rollback of ed59f62f8bbc5f05bcba2f89ee16f107e03813f2 PiperOrigin-RevId: 506003574 Change-Id: I1766321f279a3226e2821e0390387d5639d28964
* In sanitizer mode, detect when references become invalidated by randomly ↵Evan Brown2023-01-301-0/+1
| | | | | | | rehashing on insertions when there is no reserved growth. PiperOrigin-RevId: 505807487 Change-Id: I9051a04f6a75e579d16e9ae8defd404bcc377fba
* Sort CMakeList deps for raw_hash_set and raw_hash_set_test.Evan Brown2023-01-231-5/+5
| | | | | PiperOrigin-RevId: 504045295 Change-Id: I110d4573087358e17a719def29e8037adfac6d15
* In sanitizer mode, add generations to swisstable iterators and backing ↵Evan Brown2022-12-191-0/+1
| | | | | | | arrays so that we can detect invalid iterator use. PiperOrigin-RevId: 496455788 Change-Id: I83df92828098a3ef1181b4e454f3ac5d3ac7a2f2
* Implement btree_iterator::operator-, which is faster than std::distance for ↵Evan Brown2022-10-171-0/+2
| | | | | | | | btree iterators. Note: btree_iterator::operator- is still O(N) because in the worst case (end()-begin()), we will have at least one operation per node in the tree, and there are at least N/M nodes, where M (a constant) is the maximum number of values per node. PiperOrigin-RevId: 481716874 Change-Id: Ic0225b7509208ed96b75a2dc626d2aa4a24f4946
* `absl::InlinedVector` supports move assignment with non-assignable types.Abseil Team2022-10-121-0/+1
| | | | | PiperOrigin-RevId: 480601268 Change-Id: I5a639da57b79ae600387c81e662d5c1542b2bf99
* No changes in OSS.Gennadiy Rozental2022-10-041-0/+3
| | | | | PiperOrigin-RevId: 478869244 Change-Id: Id16eb1e5036e95a5e2a990a647f1f7090129a009
* Add common_policy_traits - a subset of hash_policy_traits that can be shared ↵Evan Brown2022-09-281-0/+27
| | | | | | | | | | between raw_hash_set and btree. Also remove the transfer implementations from btree_set.h and flat_hash_set.h, which are equivalent to the default implementations. Motivation: this will simplify upcoming changes related to trivial relocation. PiperOrigin-RevId: 477493403 Change-Id: I75babef4c93dec3a8105f86c58af54199bb1ec9c
* Fix ClangTidy warnings in btree.h and btree_test.cc.Evan Brown2022-09-011-1/+0
| | | | | PiperOrigin-RevId: 471639724 Change-Id: Ie609f4d5b15c06fc286fae2944b550937da266d3
* Replace direct uses of __builtin_prefetch from SwissTable with the wrapper ↵Greg Falcon2022-05-181-0/+2
| | | | | | | | | | | 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
* Export of internal Abseil changesAbseil Team2022-04-041-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 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 changesAbseil Team2022-03-291-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 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
* Export of internal Abseil changesAbseil Team2022-02-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- 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 changesAbseil Team2021-12-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -- e7f53dfbf809812e84770217777f81b6308a3084 by Abseil Team <absl-team@google.com>: Add a parameter pack to absl profile to allow profiles to separate dynamic data from static data that is available at constructor-time. Background: `inline_element_size` is effectively constant, but there is a data race between its initialization and its access. We had fixed that race by making inline_element_size atomic. This CL changes `inline_element_size` back to a non-atomic integer, and provides a way for all profiles to provide Register()-time values. PiperOrigin-RevId: 413960559 -- 70234c5943f8e37e17c1d9c54d8ed61d39880abf by Chris Kennelly <ckennelly@google.com>: Document that absl::FunctionRef does not allocate. PiperOrigin-RevId: 413946831 -- 3308ae571412c4be3cc32d088c6edac98ff2d1ed by Samuel Benzaquen <sbenza@google.com>: Internal change PiperOrigin-RevId: 413933619 -- 1617093a730d055edcf7bc04fdd6509783f5f75d by Martijn Vels <mvels@google.com>: Internal Change PiperOrigin-RevId: 413778735 -- 03ad683f059c806a6c8b04f5b79b2662c3df8c73 by Evan Brown <ezb@google.com>: Unify btree erase_if definitions and optimize them so that we only do rebalancing once per leaf node. PiperOrigin-RevId: 413757280 -- 5ba402f70801938178e486617063f01c7862525d by Martijn Vels <mvels@google.com>: Cleanup up cord sampling internals PiperOrigin-RevId: 413755011 -- 522da8f9d3e0f11630d89fb41952004742bc335a by Evan Brown <ezb@google.com>: Add b-tree benchmark for erase_if. Since this benchmark doesn't work for std:: containers before C++20, disable it for them. PiperOrigin-RevId: 413740844 -- a690ea42de8ed4a761d00235d8b2fb7548ba9732 by Andy Getzendanner <durandal@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 413735737 GitOrigin-RevId: e7f53dfbf809812e84770217777f81b6308a3084 Change-Id: I4f9f9039ba92831bc48971964aa063244c9fed72
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-08 23:38:02 +0000