diff options
author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
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committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/libs/farmhash | |
download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'contrib/libs/farmhash')
29 files changed, 24598 insertions, 0 deletions
diff --git a/contrib/libs/farmhash/.yandex_meta/devtools.copyrights.report b/contrib/libs/farmhash/.yandex_meta/devtools.copyrights.report new file mode 100644 index 0000000000..57eafa15d3 --- /dev/null +++ b/contrib/libs/farmhash/.yandex_meta/devtools.copyrights.report @@ -0,0 +1,44 @@ +# File format ($ symbol means the beginning of a line): +# +# $ # this message +# $ # ======================= +# $ # comments (all commentaries should starts with some number of spaces and # symbol) +# ${action} {license id} {license text hash} +# $BELONGS ./ya/make/file/relative/path/1/ya.make ./ya/make/2/ya.make +# ${all_file_action} filename +# $ # user commentaries (many lines) +# $ generated description - files with this license, license text... (some number of lines that starts with some number of spaces, do not modify) +# ${action} {license spdx} {license text hash} +# $BELONGS ./ya/make/file/relative/path/3/ya.make +# ${all_file_action} filename +# $ # user commentaries +# $ generated description +# $ ... +# +# You can modify action, all_file_action and add commentaries +# Available actions: +# keep - keep license in contrib and use in credits +# skip - skip license +# remove - remove all files with this license +# rename - save license text/links into licenses texts file, but not store SPDX into LINCENSE macro. You should store correct license id into devtools.license.spdx.txt file +# +# {all file action} records will be generated when license text contains filename that exists on filesystem (in contrib directory) +# We suppose that that files can contain some license info +# Available all file actions: +# FILE_IGNORE - ignore file (do nothing) +# FILE_INCLUDE - include all file data into licenses text file +# ======================= + +KEEP COPYRIGHT_SERVICE_LABEL 86b1a2a734bd6f7b14d535bc595ea4d8 +BELONGS ya.make + License text: + // Copyright (c) 2014 Google, Inc. + Scancode info: + Original SPDX id: COPYRIGHT_SERVICE_LABEL + Score : 100.00 + Match type : COPYRIGHT + Files with this license: + COPYING [1:1] + common.h [3:3] + farmhash.cc [1:1] + farmhash.h [1:1] diff --git a/contrib/libs/farmhash/.yandex_meta/devtools.licenses.report b/contrib/libs/farmhash/.yandex_meta/devtools.licenses.report new file mode 100644 index 0000000000..c509365544 --- /dev/null +++ b/contrib/libs/farmhash/.yandex_meta/devtools.licenses.report @@ -0,0 +1,66 @@ +# File format ($ symbol means the beginning of a line): +# +# $ # this message +# $ # ======================= +# $ # comments (all commentaries should starts with some number of spaces and # symbol) +# ${action} {license spdx} {license text hash} +# $BELONGS ./ya/make/file/relative/path/1/ya.make ./ya/make/2/ya.make +# ${all_file_action} filename +# $ # user commentaries (many lines) +# $ generated description - files with this license, license text... (some number of lines that starts with some number of spaces, do not modify) +# ${action} {license spdx} {license text hash} +# $BELONGS ./ya/make/file/relative/path/3/ya.make +# ${all_file_action} filename +# $ # user commentaries +# $ generated description +# $ ... +# +# You can modify action, all_file_action and add commentaries +# Available actions: +# keep - keep license in contrib and use in credits +# skip - skip license +# remove - remove all files with this license +# rename - save license text/links into licenses texts file, but not store SPDX into LINCENSE macro. You should store correct license id into devtools.license.spdx.txt file +# +# {all file action} records will be generated when license text contains filename that exists on filesystem (in contrib directory) +# We suppose that that files can contain some license info +# Available all file actions: +# FILE_IGNORE - ignore file (do nothing) +# FILE_INCLUDE - include all file data into licenses text file +# ======================= + +KEEP MIT 12001783f88b7f1119bb610e11def8c5 +BELONGS ya.make + Note: matched license text is too long. Read it in the source files. + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : TEXT + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + farmhash.cc [3:19] + +KEEP MIT 3f5a53782948de7e1deaa28d08dcee8b +BELONGS ya.make + License text: + We provide reference implementations in C++, with a friendly MIT license. + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : REFERENCE + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + README [15:15] + +KEEP MIT df72b988aaabd56ef5353d0ec9ab39dc +BELONGS ya.make + Note: matched license text is too long. Read it in the source files. + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : TEXT + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + COPYING [3:19] + common.h [5:21] + farmhash.h [3:19] diff --git a/contrib/libs/farmhash/.yandex_meta/licenses.list.txt b/contrib/libs/farmhash/.yandex_meta/licenses.list.txt new file mode 100644 index 0000000000..02cd2fe984 --- /dev/null +++ b/contrib/libs/farmhash/.yandex_meta/licenses.list.txt @@ -0,0 +1,26 @@ +====================COPYRIGHT==================== +// Copyright (c) 2014 Google, Inc. + + +====================MIT==================== +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + + +====================MIT==================== +We provide reference implementations in C++, with a friendly MIT license. diff --git a/contrib/libs/farmhash/COPYING b/contrib/libs/farmhash/COPYING new file mode 100644 index 0000000000..8176e66198 --- /dev/null +++ b/contrib/libs/farmhash/COPYING @@ -0,0 +1,19 @@ +// Copyright (c) 2014 Google, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. diff --git a/contrib/libs/farmhash/IMPORT b/contrib/libs/farmhash/IMPORT new file mode 100644 index 0000000000..a923a166bf --- /dev/null +++ b/contrib/libs/farmhash/IMPORT @@ -0,0 +1 @@ +Imported from https://github.com/google/farmhash commit 23eecfbe7e84ebf2e229bd02248f431c36e12f1a (master branch, 2017-06-26) diff --git a/contrib/libs/farmhash/README b/contrib/libs/farmhash/README new file mode 100644 index 0000000000..146936d21a --- /dev/null +++ b/contrib/libs/farmhash/README @@ -0,0 +1,163 @@ +FarmHash, a family of hash functions. +Version 1.1 + +Introduction +============ + +A general overview of hash functions and their use is available in the file +Understanding_Hash_Functions in this directory. It may be helpful to read it +before using FarmHash. + +FarmHash provides hash functions for strings and other data. The functions +mix the input bits thoroughly but are not suitable for cryptography. See +"Hash Quality," below, for details on how FarmHash was tested and so on. + +We provide reference implementations in C++, with a friendly MIT license. + +All members of the FarmHash family were designed with heavy reliance on +previous work by Jyrki Alakuijala, Austin Appleby, Bob Jenkins, and others. + + +Recommended Usage +================= + +Our belief is that the typical hash function is mostly used for in-memory hash +tables and similar. That use case allows hash functions that differ on +different platforms, and that change from time to time. For this, I recommend +using wrapper functions in a .h file with comments such as, "may change from +time to time, may differ on different platforms, and may change depending on +NDEBUG." + +Some projects may also require a forever-fixed, portable hash function. Again +we recommend using wrapper functions in a .h, but in this case the comments on +them would be very different. + +We have provided a sample of these wrapper functions in src/farmhash.h. Our +hope is that most people will need nothing more than src/farmhash.h and +src/farmhash.cc. Those two files are a usable and relatively portable library. +(One portability snag: if your compiler doesn't have __builtin_expect then +you may need to define FARMHASH_NO_BUILTIN_EXPECT.) For those that prefer +using a configure script (perhaps because they want to "make install" later), +FarmHash has one, but for many people it's best to ignore it. + +Note that the wrapper functions such as Hash() in src/farmhash.h can select +one of several hash functions. The selection is done at compile time, based +on your machine architecture (e.g., sizeof(size_t)) and the availability of +vector instructions (e.g., SSE4.1). + +To get the best performance from FarmHash, one will need to think a bit about +when to use compiler flags that allow vector instructions and such: -maes, +-msse4.2, -mavx, etc., or their equivalents for other compilers. Those are +the g++ flags that make g++ emit more types of machine instructions than it +otherwise would. For example, if you are confident that you will only be +using FarmHash on systems with SSE4.2 and/or AES, you may communicate that to +the compiler as explained in src/farmhash.cc. If not, use -maes, -mavx, etc., +when you can, and the appropriate choices will be made by via conditional +compilation in src/farmhash.cc. + +It may be beneficial to try -O3 or other compiler flags as well. I also have +found feedback-directed optimization (FDO) to improve the speed of FarmHash. + +The "configure" script: creating config.h +========================================= + +We provide reference implementations of several FarmHash functions, written in +C++. The build system is based on autoconf. It defaults the C++ compiler +flags to "-g -O2", which may or may not be best. + +If you are planning to use the configure script, I generally recommend +trying this first, unless you know that your system lacks AVX and/or AESNI: + + ./configure CXXFLAGS="-g -mavx -maes -O3" + make all check + +If that fails, you can retry with -mavx and/or -maes removed, or with -mavx replaced by +-msse4.1 or -msse4.2. + +Please see below for thoughts on cross-platform testing, if that is a concern. +Finally, if you want to install a library, you may use + + make install + +Some useful flags for configure include: + + --enable-optional-builtin-expect: This causes __builtin_expect to be optional. + If you don't use this flag, the assumption is that FarmHash will be compiled + with compilers that provide __builtin_expect. In practice, some FarmHash + variants may be slightly faster if __builtin_expect is available, but it + isn't very important and affects speed only. + +Further Details +=============== + +The above instructions will produce a single source-level library that +includes multiple hash functions. It will use conditional compilation, and +perhaps GCC's multiversioning, to select among the functions. In addition, +"make all check" will create an object file using your chosen compiler, and +test it. The object file won't necessarily contain all the code that would be +used if you were to compile the code on other platforms. The downside of this +is obvious: the paths not tested may not actually work if and when you try +them. The FarmHash developers try hard to prevent such problems; please let +us know if you find bugs. + +To aid your cross-platform testing, for each relevant platform you may +compile your program that uses farmhash.cc with the preprocessor flag +FARMHASHSELFTEST equal to 1. This causes a FarmHash self test to run +at program startup; the self test writes output to stdout and then +calls std::exit(). You can see this in action by running "make check": +see src/farm-test.cc for details. + +There's also a trivial workaround to force particular functions to be used: +modify the wrapper functions in hash.h. You can prevent choices being made via +conditional compilation or multiversioning by choosing FarmHash variants with +names like farmhashaa::Hash32, farmhashab::Hash64, etc.: those compute the same +hash function regardless of conditional compilation, multiversioning, or +endianness. Consult their comments and ifdefs to learn their requirements: for +example, they are not all guaranteed to work on all platforms. + +Known Issues +============ + +1) FarmHash was developed with little-endian architectures in mind. It should +work on big-endian too, but less work has gone into optimizing for those +platforms. To make FarmHash work properly on big-endian platforms you may +need to modify the wrapper .h file and/or your compiler flags to arrange for +FARMHASH_BIG_ENDIAN to be defined, though there is logic that tries to figure +it out automatically. + +2) FarmHash's implementation is fairly complex. + +3) The techniques described in dev/INSTRUCTIONS to let hash function +developers regenerate src/*.cc from dev/* are hacky and not so portable. + +Hash Quality +============ + +We like to test hash functions with SMHasher, among other things. +SMHasher isn't perfect, but it seems to find almost any significant flaw. +SMHasher is available at http://code.google.com/p/smhasher/ + +SMHasher is designed to pass a 32-bit seed to the hash functions it tests. +For our functions that accept a seed, we use the given seed directly (padded +with zeroes as needed); for our functions that don't accept a seed, we hash +the concatenation of the given seed and the input string. + +Some minor flaws in 32-bit and 64-bit functions are harmless, as we +expect the primary use of these functions will be in hash tables. We +may have gone slightly overboard in trying to please SMHasher and other +similar tests, but we don't want anyone to choose a different hash function +because of some minor issue reported by a quality test. + +If your setup is similar enough to mine, it's easy to use SMHasher and other +tools yourself via the "builder" in the dev directory. See dev/INSTRUCTIONS. +(Improvements to that directory are a relatively low priority, and code +there is never going to be as portable as the other parts of FarmHash.) + +For more information +==================== + +http://code.google.com/p/farmhash/ + +farmhash-discuss@googlegroups.com + +Please feel free to send us comments, questions, bug reports, or patches. diff --git a/contrib/libs/farmhash/arch/sse41/ya.make b/contrib/libs/farmhash/arch/sse41/ya.make new file mode 100644 index 0000000000..b3b2964c99 --- /dev/null +++ b/contrib/libs/farmhash/arch/sse41/ya.make @@ -0,0 +1,21 @@ +LIBRARY() + +WITHOUT_LICENSE_TEXTS() + +LICENSE(MIT) + +OWNER(somov) + +NO_COMPILER_WARNINGS() + +IF (NOT MSVC OR CLANG_CL) + CFLAGS(-msse4.1) +ENDIF() + +SRCDIR(contrib/libs/farmhash) + +SRCS( + farmhashnt.cc +) + +END() diff --git a/contrib/libs/farmhash/arch/sse42/ya.make b/contrib/libs/farmhash/arch/sse42/ya.make new file mode 100644 index 0000000000..6df471feb7 --- /dev/null +++ b/contrib/libs/farmhash/arch/sse42/ya.make @@ -0,0 +1,22 @@ +LIBRARY() + +WITHOUT_LICENSE_TEXTS() + +LICENSE(MIT) + +OWNER(somov) + +NO_COMPILER_WARNINGS() + +IF (NOT MSVC OR CLANG_CL) + CFLAGS(-msse4.2) +ENDIF() + +SRCDIR(contrib/libs/farmhash) + +SRCS( + farmhashsa.cc + farmhashte.cc +) + +END() diff --git a/contrib/libs/farmhash/arch/sse42_aesni/ya.make b/contrib/libs/farmhash/arch/sse42_aesni/ya.make new file mode 100644 index 0000000000..4d558bc2a2 --- /dev/null +++ b/contrib/libs/farmhash/arch/sse42_aesni/ya.make @@ -0,0 +1,24 @@ +LIBRARY() + +WITHOUT_LICENSE_TEXTS() + +LICENSE(MIT) + +OWNER(somov) + +NO_COMPILER_WARNINGS() + +IF (NOT MSVC OR CLANG_CL) + CFLAGS( + -msse4.2 + -maes + ) +ENDIF() + +SRCDIR(contrib/libs/farmhash) + +SRCS( + farmhashsu.cc +) + +END() diff --git a/contrib/libs/farmhash/arch/ya.make b/contrib/libs/farmhash/arch/ya.make new file mode 100644 index 0000000000..7e2e9835f5 --- /dev/null +++ b/contrib/libs/farmhash/arch/ya.make @@ -0,0 +1,3 @@ +OWNER( + somov +) diff --git a/contrib/libs/farmhash/common.h b/contrib/libs/farmhash/common.h new file mode 100644 index 0000000000..7c6acfee33 --- /dev/null +++ b/contrib/libs/farmhash/common.h @@ -0,0 +1,412 @@ +#pragma once + +// Copyright (c) 2014 Google, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. +// +// FarmHash, by Geoff Pike + +#include "farmhash.h" +// FARMHASH ASSUMPTIONS: Modify as needed, or use -DFARMHASH_ASSUME_SSE42 etc. +// Note that if you use -DFARMHASH_ASSUME_SSE42 you likely need -msse42 +// (or its equivalent for your compiler); if you use -DFARMHASH_ASSUME_AESNI +// you likely need -maes (or its equivalent for your compiler). + +#ifdef FARMHASH_ASSUME_SSSE3 +#undef FARMHASH_ASSUME_SSSE3 +#define FARMHASH_ASSUME_SSSE3 1 +#endif + +#ifdef FARMHASH_ASSUME_SSE41 +#undef FARMHASH_ASSUME_SSE41 +#define FARMHASH_ASSUME_SSE41 1 +#endif + +#ifdef FARMHASH_ASSUME_SSE42 +#undef FARMHASH_ASSUME_SSE42 +#define FARMHASH_ASSUME_SSE42 1 +#endif + +#ifdef FARMHASH_ASSUME_AESNI +#undef FARMHASH_ASSUME_AESNI +#define FARMHASH_ASSUME_AESNI 1 +#endif + +#ifdef FARMHASH_ASSUME_AVX +#undef FARMHASH_ASSUME_AVX +#define FARMHASH_ASSUME_AVX 1 +#endif + +#if !defined(FARMHASH_CAN_USE_CXX11) && defined(LANG_CXX11) +#define FARMHASH_CAN_USE_CXX11 1 +#else +#undef FARMHASH_CAN_USE_CXX11 +#define FARMHASH_CAN_USE_CXX11 0 +#endif + +// FARMHASH PORTABILITY LAYER: Runtime error if misconfigured + +#ifndef FARMHASH_DIE_IF_MISCONFIGURED +#define FARMHASH_DIE_IF_MISCONFIGURED do { *(char*)(len % 17) = 0; } while (0) +#endif + +// FARMHASH PORTABILITY LAYER: "static inline" or similar + +#ifndef STATIC_INLINE +#define STATIC_INLINE static inline +#endif + +// FARMHASH PORTABILITY LAYER: LIKELY and UNLIKELY + +#if defined(_MSC_VER) +# define FARMHASH_NO_BUILTIN_EXPECT +#endif + +#if !defined(LIKELY) +#if defined(FARMHASH_NO_BUILTIN_EXPECT) || (defined(FARMHASH_OPTIONAL_BUILTIN_EXPECT) && !defined(HAVE_BUILTIN_EXPECT)) +#define LIKELY(x) (x) +#else +#define LIKELY(x) (__builtin_expect(!!(x), 1)) +#endif +#endif + +#undef UNLIKELY +#define UNLIKELY(x) !LIKELY(!(x)) + +// FARMHASH PORTABILITY LAYER: endianness and byteswapping functions + +#ifdef WORDS_BIGENDIAN +#undef FARMHASH_BIG_ENDIAN +#define FARMHASH_BIG_ENDIAN 1 +#endif + +#if defined(FARMHASH_LITTLE_ENDIAN) && defined(FARMHASH_BIG_ENDIAN) +#error +#endif + +#if !defined(FARMHASH_LITTLE_ENDIAN) && !defined(FARMHASH_BIG_ENDIAN) +#define FARMHASH_UNKNOWN_ENDIAN 1 +#endif + +#if !defined(bswap_32) || !defined(bswap_64) +#undef bswap_32 +#undef bswap_64 + +#if defined(HAVE_BUILTIN_BSWAP) || defined(__clang__) || \ + (defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || \ + __GNUC__ >= 5)) +// Easy case for bswap: no header file needed. +#define bswap_32(x) __builtin_bswap32(x) +#define bswap_64(x) __builtin_bswap64(x) +#endif + +#endif + +#if defined(FARMHASH_UNKNOWN_ENDIAN) || !defined(bswap_64) + +#ifdef _MSC_VER + +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) _byteswap_ulong(x) +#define bswap_64(x) _byteswap_uint64(x) + +#elif defined(__APPLE__) + +// Mac OS X / Darwin features +#include <libkern/OSByteOrder.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) OSSwapInt32(x) +#define bswap_64(x) OSSwapInt64(x) + +#elif defined(__sun) || defined(sun) + +#include <sys/byteorder.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) BSWAP_32(x) +#define bswap_64(x) BSWAP_64(x) + +#elif defined(__FreeBSD__) || defined(__DragonFly__) + +#include <sys/endian.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) bswap32(x) +#define bswap_64(x) bswap64(x) + +#elif defined(__OpenBSD__) + +#include <sys/types.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) swap32(x) +#define bswap_64(x) swap64(x) + +#elif defined(__NetBSD__) + +#include <sys/types.h> +#include <machine/bswap.h> +#if defined(__BSWAP_RENAME) && !defined(__bswap_32) +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) bswap32(x) +#define bswap_64(x) bswap64(x) +#endif + +#else + +#undef bswap_32 +#undef bswap_64 +#include <byteswap.h> + +#endif + +#ifdef WORDS_BIGENDIAN +#define FARMHASH_BIG_ENDIAN 1 +#endif + +#endif + +#ifdef FARMHASH_BIG_ENDIAN +#define uint32_in_expected_order(x) (bswap_32(x)) +#define uint64_in_expected_order(x) (bswap_64(x)) +#else +#define uint32_in_expected_order(x) (x) +#define uint64_in_expected_order(x) (x) +#endif + +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +STATIC_INLINE uint64_t Fetch64(const char *p) { + uint64_t result; + memcpy(&result, p, sizeof(result)); + return uint64_in_expected_order(result); +} + +STATIC_INLINE uint32_t Fetch32(const char *p) { + uint32_t result; + memcpy(&result, p, sizeof(result)); + return uint32_in_expected_order(result); +} + +STATIC_INLINE uint32_t Bswap32(uint32_t val) { return bswap_32(val); } +STATIC_INLINE uint64_t Bswap64(uint64_t val) { return bswap_64(val); } + +// FARMHASH PORTABILITY LAYER: bitwise rot + +STATIC_INLINE uint32_t BasicRotate32(uint32_t val, int shift) { + // Avoid shifting by 32: doing so yields an undefined result. + return shift == 0 ? val : ((val >> shift) | (val << (32 - shift))); +} + +STATIC_INLINE uint64_t BasicRotate64(uint64_t val, int shift) { + // Avoid shifting by 64: doing so yields an undefined result. + return shift == 0 ? val : ((val >> shift) | (val << (64 - shift))); +} + +#if defined(_MSC_VER) && defined(FARMHASH_ROTR) + +STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) { + return sizeof(unsigned long) == sizeof(val) ? + _lrotr(val, shift) : + BasicRotate32(val, shift); +} + +STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) { + return sizeof(unsigned long) == sizeof(val) ? + _lrotr(val, shift) : + BasicRotate64(val, shift); +} + +#else + +STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) { + return BasicRotate32(val, shift); +} +STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) { + return BasicRotate64(val, shift); +} + +#endif + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + +// FARMHASH PORTABILITY LAYER: debug mode or max speed? +// One may use -DFARMHASH_DEBUG=1 or -DFARMHASH_DEBUG=0 to force the issue. + +#if !defined(FARMHASH_DEBUG) && (!defined(NDEBUG) || defined(_DEBUG)) +#define FARMHASH_DEBUG 1 +#endif + +#undef debug_mode +#if FARMHASH_DEBUG +#define debug_mode 1 +#else +#define debug_mode 0 +#endif + +// PLATFORM-SPECIFIC FUNCTIONS AND MACROS + +#undef x86_64 +#if defined (__x86_64) || defined (__x86_64__) +#define x86_64 1 +#else +#define x86_64 0 +#endif + +#undef x86 +#if defined(__i386__) || defined(__i386) || defined(__X86__) +#define x86 1 +#else +#define x86 x86_64 +#endif + +#if !defined(is_64bit) +#define is_64bit (x86_64 || (sizeof(void*) == 8)) +#endif + +#undef can_use_ssse3 +#if defined(__SSSE3__) || defined(FARMHASH_ASSUME_SSSE3) + +#include <immintrin.h> +#define can_use_ssse3 1 +// Now we can use _mm_hsub_epi16 and so on. + +#else +#define can_use_ssse3 0 +#endif + +#undef can_use_sse41 +#if defined(__SSE4_1__) || defined(FARMHASH_ASSUME_SSE41) + +#include <immintrin.h> +#define can_use_sse41 1 +// Now we can use _mm_insert_epi64 and so on. + +#else +#define can_use_sse41 0 +#endif + +#undef can_use_sse42 +#if defined(__SSE4_2__) || defined(FARMHASH_ASSUME_SSE42) + +#include <nmmintrin.h> +#define can_use_sse42 1 +// Now we can use _mm_crc32_u{32,16,8}. And on 64-bit platforms, _mm_crc32_u64. + +#else +#define can_use_sse42 0 +#endif + +#undef can_use_aesni +#if defined(__AES__) || defined(FARMHASH_ASSUME_AESNI) + +#include <wmmintrin.h> +#define can_use_aesni 1 +// Now we can use _mm_aesimc_si128 and so on. + +#else +#define can_use_aesni 0 +#endif + +#undef can_use_avx +#if defined(__AVX__) || defined(FARMHASH_ASSUME_AVX) + +#include <immintrin.h> +#define can_use_avx 1 + +#else +#define can_use_avx 0 +#endif + +#if can_use_ssse3 || can_use_sse41 || can_use_sse42 || can_use_aesni || can_use_avx +STATIC_INLINE __m128i Fetch128(const char* s) { + return _mm_loadu_si128(reinterpret_cast<const __m128i*>(s)); +} +#endif +// Building blocks for hash functions + +// std::swap() was in <algorithm> but is in <utility> from C++11 on. +#if !FARMHASH_CAN_USE_CXX11 +#include <algorithm> +#endif + +#undef PERMUTE3 +#define PERMUTE3(a, b, c) do { std::swap(a, b); std::swap(a, c); } while (0) + +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +// Some primes between 2^63 and 2^64 for various uses. +static const uint64_t k0 = 0xc3a5c85c97cb3127ULL; +static const uint64_t k1 = 0xb492b66fbe98f273ULL; +static const uint64_t k2 = 0x9ae16a3b2f90404fULL; + +// Magic numbers for 32-bit hashing. Copied from Murmur3. +static const uint32_t c1 = 0xcc9e2d51; +static const uint32_t c2 = 0x1b873593; + +// A 32-bit to 32-bit integer hash copied from Murmur3. +STATIC_INLINE uint32_t fmix(uint32_t h) +{ + h ^= h >> 16; + h *= 0x85ebca6b; + h ^= h >> 13; + h *= 0xc2b2ae35; + h ^= h >> 16; + return h; +} + +STATIC_INLINE uint32_t Mur(uint32_t a, uint32_t h) { + // Helper from Murmur3 for combining two 32-bit values. + a *= c1; + a = Rotate32(a, 17); + a *= c2; + h ^= a; + h = Rotate32(h, 19); + return h * 5 + 0xe6546b64; +} + +template <typename T> STATIC_INLINE T DebugTweak(T x) { + if (debug_mode) { + if (sizeof(x) == 4) { + x = ~Bswap32(x * c1); + } else { + x = ~Bswap64(x * k1); + } + } + return x; +} + +template <> uint128_t DebugTweak(uint128_t x) { + if (debug_mode) { + uint64_t y = DebugTweak(Uint128Low64(x)); + uint64_t z = DebugTweak(Uint128High64(x)); + y += z; + z += y; + x = Uint128(y, z * k1); + } + return x; +} + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + +using namespace std; +using namespace NAMESPACE_FOR_HASH_FUNCTIONS; diff --git a/contrib/libs/farmhash/farmhash.cc b/contrib/libs/farmhash/farmhash.cc new file mode 100644 index 0000000000..27b344fc65 --- /dev/null +++ b/contrib/libs/farmhash/farmhash.cc @@ -0,0 +1,11835 @@ +// Copyright (c) 2014 Google, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. +// +// FarmHash, by Geoff Pike + +#include <util/system/compiler.h> +#include "farmhash.h" +// FARMHASH ASSUMPTIONS: Modify as needed, or use -DFARMHASH_ASSUME_SSE42 etc. +// Note that if you use -DFARMHASH_ASSUME_SSE42 you likely need -msse42 +// (or its equivalent for your compiler); if you use -DFARMHASH_ASSUME_AESNI +// you likely need -maes (or its equivalent for your compiler). + +#ifdef FARMHASH_ASSUME_SSSE3 +#undef FARMHASH_ASSUME_SSSE3 +#define FARMHASH_ASSUME_SSSE3 1 +#endif + +#ifdef FARMHASH_ASSUME_SSE41 +#undef FARMHASH_ASSUME_SSE41 +#define FARMHASH_ASSUME_SSE41 1 +#endif + +#ifdef FARMHASH_ASSUME_SSE42 +#undef FARMHASH_ASSUME_SSE42 +#define FARMHASH_ASSUME_SSE42 1 +#endif + +#ifdef FARMHASH_ASSUME_AESNI +#undef FARMHASH_ASSUME_AESNI +#define FARMHASH_ASSUME_AESNI 1 +#endif + +#ifdef FARMHASH_ASSUME_AVX +#undef FARMHASH_ASSUME_AVX +#define FARMHASH_ASSUME_AVX 1 +#endif + +#if !defined(FARMHASH_CAN_USE_CXX11) && defined(LANG_CXX11) +#define FARMHASH_CAN_USE_CXX11 1 +#else +#undef FARMHASH_CAN_USE_CXX11 +#define FARMHASH_CAN_USE_CXX11 0 +#endif + +// FARMHASH PORTABILITY LAYER: Runtime error if misconfigured + +#ifndef FARMHASH_DIE_IF_MISCONFIGURED +#define FARMHASH_DIE_IF_MISCONFIGURED do { *(char*)(len % 17) = 0; } while (0) +#endif + +// FARMHASH PORTABILITY LAYER: "static inline" or similar + +#ifndef STATIC_INLINE +#define STATIC_INLINE static inline +#endif + +// FARMHASH PORTABILITY LAYER: LIKELY and UNLIKELY + +#if !defined(LIKELY) +#if defined(FARMHASH_NO_BUILTIN_EXPECT) || (defined(FARMHASH_OPTIONAL_BUILTIN_EXPECT) && !defined(HAVE_BUILTIN_EXPECT)) +#define LIKELY(x) (x) +#else +#define LIKELY(x) (__builtin_expect(!!(x), 1)) +#endif +#endif + +#undef UNLIKELY +#define UNLIKELY(x) !LIKELY(!(x)) + +// FARMHASH PORTABILITY LAYER: endianness and byteswapping functions + +#ifdef WORDS_BIGENDIAN +#undef FARMHASH_BIG_ENDIAN +#define FARMHASH_BIG_ENDIAN 1 +#endif + +#if defined(FARMHASH_LITTLE_ENDIAN) && defined(FARMHASH_BIG_ENDIAN) +#error +#endif + +#if !defined(FARMHASH_LITTLE_ENDIAN) && !defined(FARMHASH_BIG_ENDIAN) +#define FARMHASH_UNKNOWN_ENDIAN 1 +#endif + +#if !defined(bswap_32) || !defined(bswap_64) +#undef bswap_32 +#undef bswap_64 + +#if defined(HAVE_BUILTIN_BSWAP) || defined(__clang__) || \ + (defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || \ + __GNUC__ >= 5)) +// Easy case for bswap: no header file needed. +#define bswap_32(x) __builtin_bswap32(x) +#define bswap_64(x) __builtin_bswap64(x) +#endif + +#endif + +#if defined(FARMHASH_UNKNOWN_ENDIAN) || !defined(bswap_64) + +#ifdef _MSC_VER + +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) _byteswap_ulong(x) +#define bswap_64(x) _byteswap_uint64(x) + +#elif defined(__APPLE__) + +// Mac OS X / Darwin features +#include <libkern/OSByteOrder.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) OSSwapInt32(x) +#define bswap_64(x) OSSwapInt64(x) + +#elif defined(__sun) || defined(sun) + +#include <sys/byteorder.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) BSWAP_32(x) +#define bswap_64(x) BSWAP_64(x) + +#elif defined(__FreeBSD__) || defined(__DragonFly__) + +#include <sys/endian.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) bswap32(x) +#define bswap_64(x) bswap64(x) + +#elif defined(__OpenBSD__) + +#include <sys/types.h> +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) swap32(x) +#define bswap_64(x) swap64(x) + +#elif defined(__NetBSD__) + +#include <sys/types.h> +#include <machine/bswap.h> +#if defined(__BSWAP_RENAME) && !defined(__bswap_32) +#undef bswap_32 +#undef bswap_64 +#define bswap_32(x) bswap32(x) +#define bswap_64(x) bswap64(x) +#endif + +#else + +#undef bswap_32 +#undef bswap_64 +#include <byteswap.h> + +#endif + +#ifdef WORDS_BIGENDIAN +#define FARMHASH_BIG_ENDIAN 1 +#endif + +#endif + +#ifdef FARMHASH_BIG_ENDIAN +#define uint32_in_expected_order(x) (bswap_32(x)) +#define uint64_in_expected_order(x) (bswap_64(x)) +#else +#define uint32_in_expected_order(x) (x) +#define uint64_in_expected_order(x) (x) +#endif + +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +STATIC_INLINE uint64_t Fetch64(const char *p) { + uint64_t result; + memcpy(&result, p, sizeof(result)); + return uint64_in_expected_order(result); +} + +STATIC_INLINE uint32_t Fetch32(const char *p) { + uint32_t result; + memcpy(&result, p, sizeof(result)); + return uint32_in_expected_order(result); +} + +STATIC_INLINE uint32_t Bswap32(uint32_t val) { return bswap_32(val); } +STATIC_INLINE uint64_t Bswap64(uint64_t val) { return bswap_64(val); } + +// FARMHASH PORTABILITY LAYER: bitwise rot + +STATIC_INLINE uint32_t BasicRotate32(uint32_t val, int shift) { + // Avoid shifting by 32: doing so yields an undefined result. + return shift == 0 ? val : ((val >> shift) | (val << (32 - shift))); +} + +STATIC_INLINE uint64_t BasicRotate64(uint64_t val, int shift) { + // Avoid shifting by 64: doing so yields an undefined result. + return shift == 0 ? val : ((val >> shift) | (val << (64 - shift))); +} + +#if defined(_MSC_VER) && defined(FARMHASH_ROTR) + +STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) { + return sizeof(unsigned long) == sizeof(val) ? + _lrotr(val, shift) : + BasicRotate32(val, shift); +} + +STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) { + return sizeof(unsigned long) == sizeof(val) ? + _lrotr(val, shift) : + BasicRotate64(val, shift); +} + +#else + +STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) { + return BasicRotate32(val, shift); +} +STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) { + return BasicRotate64(val, shift); +} + +#endif + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + +// FARMHASH PORTABILITY LAYER: debug mode or max speed? +// One may use -DFARMHASH_DEBUG=1 or -DFARMHASH_DEBUG=0 to force the issue. + +#if !defined(FARMHASH_DEBUG) && (!defined(NDEBUG) || defined(_DEBUG)) +#define FARMHASH_DEBUG 1 +#endif + +#undef debug_mode +#if FARMHASH_DEBUG +#define debug_mode 1 +#else +#define debug_mode 0 +#endif + +// PLATFORM-SPECIFIC FUNCTIONS AND MACROS + +#undef x86_64 +#if defined (__x86_64) || defined (__x86_64__) +#define x86_64 1 +#else +#define x86_64 0 +#endif + +#undef x86 +#if defined(__i386__) || defined(__i386) || defined(__X86__) +#define x86 1 +#else +#define x86 x86_64 +#endif + +#if !defined(is_64bit) +#define is_64bit (x86_64 || (sizeof(void*) == 8)) +#endif + +#undef can_use_ssse3 +#if defined(__SSSE3__) || defined(FARMHASH_ASSUME_SSSE3) + +#include <immintrin.h> +#define can_use_ssse3 1 +// Now we can use _mm_hsub_epi16 and so on. + +#else +#define can_use_ssse3 0 +#endif + +#undef can_use_sse41 +#if defined(__SSE4_1__) || defined(FARMHASH_ASSUME_SSE41) + +#include <immintrin.h> +#define can_use_sse41 1 +// Now we can use _mm_insert_epi64 and so on. + +#else +#define can_use_sse41 0 +#endif + +#undef can_use_sse42 +#if defined(__SSE4_2__) || defined(FARMHASH_ASSUME_SSE42) + +#include <nmmintrin.h> +#define can_use_sse42 1 +// Now we can use _mm_crc32_u{32,16,8}. And on 64-bit platforms, _mm_crc32_u64. + +#else +#define can_use_sse42 0 +#endif + +#undef can_use_aesni +#if defined(__AES__) || defined(FARMHASH_ASSUME_AESNI) + +#include <wmmintrin.h> +#define can_use_aesni 1 +// Now we can use _mm_aesimc_si128 and so on. + +#else +#define can_use_aesni 0 +#endif + +#undef can_use_avx +#if defined(__AVX__) || defined(FARMHASH_ASSUME_AVX) + +#include <immintrin.h> +#define can_use_avx 1 + +#else +#define can_use_avx 0 +#endif + +#if can_use_ssse3 || can_use_sse41 || can_use_sse42 || can_use_aesni || can_use_avx +STATIC_INLINE __m128i Fetch128(const char* s) { + return _mm_loadu_si128(reinterpret_cast<const __m128i*>(s)); +} +#endif +// Building blocks for hash functions + +// std::swap() was in <algorithm> but is in <utility> from C++11 on. +#if !FARMHASH_CAN_USE_CXX11 +#include <algorithm> +#endif + +#undef PERMUTE3 +#define PERMUTE3(a, b, c) do { std::swap(a, b); std::swap(a, c); } while (0) + +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +// Some primes between 2^63 and 2^64 for various uses. +static const uint64_t k0 = 0xc3a5c85c97cb3127ULL; +static const uint64_t k1 = 0xb492b66fbe98f273ULL; +static const uint64_t k2 = 0x9ae16a3b2f90404fULL; + +// Magic numbers for 32-bit hashing. Copied from Murmur3. +static const uint32_t c1 = 0xcc9e2d51; +static const uint32_t c2 = 0x1b873593; + +// A 32-bit to 32-bit integer hash copied from Murmur3. +STATIC_INLINE uint32_t fmix(uint32_t h) +{ + h ^= h >> 16; + h *= 0x85ebca6b; + h ^= h >> 13; + h *= 0xc2b2ae35; + h ^= h >> 16; + return h; +} + +STATIC_INLINE uint32_t Mur(uint32_t a, uint32_t h) { + // Helper from Murmur3 for combining two 32-bit values. + a *= c1; + a = Rotate32(a, 17); + a *= c2; + h ^= a; + h = Rotate32(h, 19); + return h * 5 + 0xe6546b64; +} + +template <typename T> STATIC_INLINE T DebugTweak(T x) { + if (debug_mode) { + if (sizeof(x) == 4) { + x = ~Bswap32(x * c1); + } else { + x = ~Bswap64(x * k1); + } + } + return x; +} + +template <> uint128_t DebugTweak(uint128_t x) { + if (debug_mode) { + uint64_t y = DebugTweak(Uint128Low64(x)); + uint64_t z = DebugTweak(Uint128High64(x)); + y += z; + z += y; + x = Uint128(y, z * k1); + } + return x; +} + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + +using namespace std; +using namespace NAMESPACE_FOR_HASH_FUNCTIONS; +namespace farmhashna { +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +#undef Bswap +#define Bswap Bswap64 + +STATIC_INLINE uint64_t ShiftMix(uint64_t val) { + return val ^ (val >> 47); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) { + return Hash128to64(Uint128(u, v)); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) { + // Murmur-inspired hashing. + uint64_t a = (u ^ v) * mul; + a ^= (a >> 47); + uint64_t b = (v ^ a) * mul; + b ^= (b >> 47); + b *= mul; + return b; +} + +STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) { + if (len >= 8) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) + k2; + uint64_t b = Fetch(s + len - 8); + uint64_t c = Rotate(b, 37) * mul + a; + uint64_t d = (Rotate(a, 25) + b) * mul; + return HashLen16(c, d, mul); + } + if (len >= 4) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch32(s); + return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul); + } + if (len > 0) { + uint8_t a = s[0]; + uint8_t b = s[len >> 1]; + uint8_t c = s[len - 1]; + uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8); + uint32_t z = len + (static_cast<uint32_t>(c) << 2); + return ShiftMix(y * k2 ^ z * k0) * k2; + } + return k2; +} + +// This probably works well for 16-byte strings as well, but it may be overkill +// in that case. +STATIC_INLINE uint64_t HashLen17to32(const char *s, size_t len) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) * k1; + uint64_t b = Fetch(s + 8); + uint64_t c = Fetch(s + len - 8) * mul; + uint64_t d = Fetch(s + len - 16) * k2; + return HashLen16(Rotate(a + b, 43) + Rotate(c, 30) + d, + a + Rotate(b + k2, 18) + c, mul); +} + +// Return a 16-byte hash for 48 bytes. Quick and dirty. +// Callers do best to use "random-looking" values for a and b. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) { + a += w; + b = Rotate(b + a + z, 21); + uint64_t c = a; + a += x; + a += y; + b += Rotate(a, 44); + return make_pair(a + z, b + c); +} + +// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + const char* s, uint64_t a, uint64_t b) { + return WeakHashLen32WithSeeds(Fetch(s), + Fetch(s + 8), + Fetch(s + 16), + Fetch(s + 24), + a, + b); +} + +// Return an 8-byte hash for 33 to 64 bytes. +STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) * k2; + uint64_t b = Fetch(s + 8); + uint64_t c = Fetch(s + len - 8) * mul; + uint64_t d = Fetch(s + len - 16) * k2; + uint64_t y = Rotate(a + b, 43) + Rotate(c, 30) + d; + uint64_t z = HashLen16(y, a + Rotate(b + k2, 18) + c, mul); + uint64_t e = Fetch(s + 16) * mul; + uint64_t f = Fetch(s + 24); + uint64_t g = (y + Fetch(s + len - 32)) * mul; + uint64_t h = (z + Fetch(s + len - 24)) * mul; + return HashLen16(Rotate(e + f, 43) + Rotate(g, 30) + h, + e + Rotate(f + a, 18) + g, mul); +} + +uint64_t Hash64(const char *s, size_t len) { + const uint64_t seed = 81; + if (len <= 32) { + if (len <= 16) { + return HashLen0to16(s, len); + } else { + return HashLen17to32(s, len); + } + } else if (len <= 64) { + return HashLen33to64(s, len); + } + + // For strings over 64 bytes we loop. Internal state consists of + // 56 bytes: v, w, x, y, and z. + uint64_t x = seed; + uint64_t y = seed * k1 + 113; + uint64_t z = ShiftMix(y * k2 + 113) * k2; + pair<uint64_t, uint64_t> v = make_pair(0, 0); + pair<uint64_t, uint64_t> w = make_pair(0, 0); + x = x * k2 + Fetch(s); + + // Set end so that after the loop we have 1 to 64 bytes left to process. + const char* end = s + ((len - 1) / 64) * 64; + const char* last64 = end + ((len - 1) & 63) - 63; + assert(s + len - 64 == last64); + do { + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; + y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; + x ^= w.second; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * k1; + v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + s += 64; + } while (s != end); + uint64_t mul = k1 + ((z & 0xff) << 1); + // Make s point to the last 64 bytes of input. + s = last64; + w.first += ((len - 1) & 63); + v.first += w.first; + w.first += v.first; + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * mul; + y = Rotate(y + v.second + Fetch(s + 48), 42) * mul; + x ^= w.second * 9; + y += v.first * 9 + Fetch(s + 40); + z = Rotate(z + w.first, 33) * mul; + v = WeakHashLen32WithSeeds(s, v.second * mul, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + return HashLen16(HashLen16(v.first, w.first, mul) + ShiftMix(y) * k0 + z, + HashLen16(v.second, w.second, mul) + x, + mul); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1); + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return Hash64WithSeeds(s, len, k2, seed); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { + return HashLen16(Hash64(s, len) - seed0, seed1); +} +} // namespace farmhashna +namespace farmhashuo { +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +STATIC_INLINE uint64_t H(uint64_t x, uint64_t y, uint64_t mul, int r) { + uint64_t a = (x ^ y) * mul; + a ^= (a >> 47); + uint64_t b = (y ^ a) * mul; + return Rotate(b, r) * mul; +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, + uint64_t seed0, uint64_t seed1) { + if (len <= 64) { + return farmhashna::Hash64WithSeeds(s, len, seed0, seed1); + } + + // For strings over 64 bytes we loop. Internal state consists of + // 64 bytes: u, v, w, x, y, and z. + uint64_t x = seed0; + uint64_t y = seed1 * k2 + 113; + uint64_t z = farmhashna::ShiftMix(y * k2) * k2; + pair<uint64_t, uint64_t> v = make_pair(seed0, seed1); + pair<uint64_t, uint64_t> w = make_pair(0, 0); + uint64_t u = x - z; + x *= k2; + uint64_t mul = k2 + (u & 0x82); + + // Set end so that after the loop we have 1 to 64 bytes left to process. + const char* end = s + ((len - 1) / 64) * 64; + const char* last64 = end + ((len - 1) & 63) - 63; + assert(s + len - 64 == last64); + do { + uint64_t a0 = Fetch(s); + uint64_t a1 = Fetch(s + 8); + uint64_t a2 = Fetch(s + 16); + uint64_t a3 = Fetch(s + 24); + uint64_t a4 = Fetch(s + 32); + uint64_t a5 = Fetch(s + 40); + uint64_t a6 = Fetch(s + 48); + uint64_t a7 = Fetch(s + 56); + x += a0 + a1; + y += a2; + z += a3; + v.first += a4; + v.second += a5 + a1; + w.first += a6; + w.second += a7; + + x = Rotate(x, 26); + x *= 9; + y = Rotate(y, 29); + z *= mul; + v.first = Rotate(v.first, 33); + v.second = Rotate(v.second, 30); + w.first ^= x; + w.first *= 9; + z = Rotate(z, 32); + z += w.second; + w.second += z; + z *= 9; + std::swap(u, y); + + z += a0 + a6; + v.first += a2; + v.second += a3; + w.first += a4; + w.second += a5 + a6; + x += a1; + y += a7; + + y += v.first; + v.first += x - y; + v.second += w.first; + w.first += v.second; + w.second += x - y; + x += w.second; + w.second = Rotate(w.second, 34); + std::swap(u, z); + s += 64; + } while (s != end); + // Make s point to the last 64 bytes of input. + s = last64; + u *= 9; + v.second = Rotate(v.second, 28); + v.first = Rotate(v.first, 20); + w.first += ((len - 1) & 63); + u += y; + y += u; + x = Rotate(y - x + v.first + Fetch(s + 8), 37) * mul; + y = Rotate(y ^ v.second ^ Fetch(s + 48), 42) * mul; + x ^= w.second * 9; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * mul; + v = farmhashna::WeakHashLen32WithSeeds(s, v.second * mul, x + w.first); + w = farmhashna::WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + return H(farmhashna::HashLen16(v.first + x, w.first ^ y, mul) + z - u, + H(v.second + y, w.second + z, k2, 30) ^ x, + k2, + 31); +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return len <= 64 ? farmhashna::Hash64WithSeed(s, len, seed) : + Hash64WithSeeds(s, len, 0, seed); +} + +uint64_t Hash64(const char *s, size_t len) { + return len <= 64 ? farmhashna::Hash64(s, len) : + Hash64WithSeeds(s, len, 81, 0); +} +} // namespace farmhashuo +namespace farmhashxo { +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +STATIC_INLINE uint64_t H32(const char *s, size_t len, uint64_t mul, + uint64_t seed0 = 0, uint64_t seed1 = 0) { + uint64_t a = Fetch(s) * k1; + uint64_t b = Fetch(s + 8); + uint64_t c = Fetch(s + len - 8) * mul; + uint64_t d = Fetch(s + len - 16) * k2; + uint64_t u = Rotate(a + b, 43) + Rotate(c, 30) + d + seed0; + uint64_t v = a + Rotate(b + k2, 18) + c + seed1; + a = farmhashna::ShiftMix((u ^ v) * mul); + b = farmhashna::ShiftMix((v ^ a) * mul); + return b; +} + +// Return an 8-byte hash for 33 to 64 bytes. +STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) { + uint64_t mul0 = k2 - 30; + uint64_t mul1 = k2 - 30 + 2 * len; + uint64_t h0 = H32(s, 32, mul0); + uint64_t h1 = H32(s + len - 32, 32, mul1); + return ((h1 * mul1) + h0) * mul1; +} + +// Return an 8-byte hash for 65 to 96 bytes. +STATIC_INLINE uint64_t HashLen65to96(const char *s, size_t len) { + uint64_t mul0 = k2 - 114; + uint64_t mul1 = k2 - 114 + 2 * len; + uint64_t h0 = H32(s, 32, mul0); + uint64_t h1 = H32(s + 32, 32, mul1); + uint64_t h2 = H32(s + len - 32, 32, mul1, h0, h1); + return (h2 * 9 + (h0 >> 17) + (h1 >> 21)) * mul1; +} + +uint64_t Hash64(const char *s, size_t len) { + if (len <= 32) { + if (len <= 16) { + return farmhashna::HashLen0to16(s, len); + } else { + return farmhashna::HashLen17to32(s, len); + } + } else if (len <= 64) { + return HashLen33to64(s, len); + } else if (len <= 96) { + return HashLen65to96(s, len); + } else if (len <= 256) { + return farmhashna::Hash64(s, len); + } else { + return farmhashuo::Hash64(s, len); + } +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { + return farmhashuo::Hash64WithSeeds(s, len, seed0, seed1); +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return farmhashuo::Hash64WithSeed(s, len, seed); +} +} // namespace farmhashxo +namespace farmhashte { +#if !can_use_sse41 || !x86_64 + +uint64_t Hash64(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash64(s, len); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, + uint64_t seed0, uint64_t seed1) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed0 + seed1 + Hash64(s, len); +} + +#else + +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +#undef Bswap +#define Bswap Bswap64 + +// Helpers for data-parallel operations (1x 128 bits or 2x 64 or 4x 32). +STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi64(x, y); } +STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } +STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } +STATIC_INLINE __m128i Shuf(__m128i x, __m128i y) { return _mm_shuffle_epi8(y, x); } + +// Requires n >= 256. Requires SSE4.1. Should be slightly faster if the +// compiler uses AVX instructions (e.g., use the -mavx flag with GCC). +STATIC_INLINE uint64_t Hash64Long(const char* s, size_t n, + uint64_t seed0, uint64_t seed1) { + const __m128i kShuf = + _mm_set_epi8(4, 11, 10, 5, 8, 15, 6, 9, 12, 2, 14, 13, 0, 7, 3, 1); + const __m128i kMult = + _mm_set_epi8(0xbd, 0xd6, 0x33, 0x39, 0x45, 0x54, 0xfa, 0x03, + 0x34, 0x3e, 0x33, 0xed, 0xcc, 0x9e, 0x2d, 0x51); + uint64_t seed2 = (seed0 + 113) * (seed1 + 9); + uint64_t seed3 = (Rotate(seed0, 23) + 27) * (Rotate(seed1, 30) + 111); + __m128i d0 = _mm_cvtsi64_si128(seed0); + __m128i d1 = _mm_cvtsi64_si128(seed1); + __m128i d2 = Shuf(kShuf, d0); + __m128i d3 = Shuf(kShuf, d1); + __m128i d4 = Xor(d0, d1); + __m128i d5 = Xor(d1, d2); + __m128i d6 = Xor(d2, d4); + __m128i d7 = _mm_set1_epi32(seed2 >> 32); + __m128i d8 = Mul(kMult, d2); + __m128i d9 = _mm_set1_epi32(seed3 >> 32); + __m128i d10 = _mm_set1_epi32(seed3); + __m128i d11 = Add(d2, _mm_set1_epi32(seed2)); + const char* end = s + (n & ~static_cast<size_t>(255)); + do { + __m128i z; + z = Fetch128(s); + d0 = Add(d0, z); + d1 = Shuf(kShuf, d1); + d2 = Xor(d2, d0); + d4 = Xor(d4, z); + d4 = Xor(d4, d1); + std::swap(d0, d6); + z = Fetch128(s + 16); + d5 = Add(d5, z); + d6 = Shuf(kShuf, d6); + d8 = Shuf(kShuf, d8); + d7 = Xor(d7, d5); + d0 = Xor(d0, z); + d0 = Xor(d0, d6); + std::swap(d5, d11); + z = Fetch128(s + 32); + d1 = Add(d1, z); + d2 = Shuf(kShuf, d2); + d4 = Shuf(kShuf, d4); + d5 = Xor(d5, z); + d5 = Xor(d5, d2); + std::swap(d10, d4); + z = Fetch128(s + 48); + d6 = Add(d6, z); + d7 = Shuf(kShuf, d7); + d0 = Shuf(kShuf, d0); + d8 = Xor(d8, d6); + d1 = Xor(d1, z); + d1 = Add(d1, d7); + z = Fetch128(s + 64); + d2 = Add(d2, z); + d5 = Shuf(kShuf, d5); + d4 = Add(d4, d2); + d6 = Xor(d6, z); + d6 = Xor(d6, d11); + std::swap(d8, d2); + z = Fetch128(s + 80); + d7 = Xor(d7, z); + d8 = Shuf(kShuf, d8); + d1 = Shuf(kShuf, d1); + d0 = Add(d0, d7); + d2 = Add(d2, z); + d2 = Add(d2, d8); + std::swap(d1, d7); + z = Fetch128(s + 96); + d4 = Shuf(kShuf, d4); + d6 = Shuf(kShuf, d6); + d8 = Mul(kMult, d8); + d5 = Xor(d5, d11); + d7 = Xor(d7, z); + d7 = Add(d7, d4); + std::swap(d6, d0); + z = Fetch128(s + 112); + d8 = Add(d8, z); + d0 = Shuf(kShuf, d0); + d2 = Shuf(kShuf, d2); + d1 = Xor(d1, d8); + d10 = Xor(d10, z); + d10 = Xor(d10, d0); + std::swap(d11, d5); + z = Fetch128(s + 128); + d4 = Add(d4, z); + d5 = Shuf(kShuf, d5); + d7 = Shuf(kShuf, d7); + d6 = Add(d6, d4); + d8 = Xor(d8, z); + d8 = Xor(d8, d5); + std::swap(d4, d10); + z = Fetch128(s + 144); + d0 = Add(d0, z); + d1 = Shuf(kShuf, d1); + d2 = Add(d2, d0); + d4 = Xor(d4, z); + d4 = Xor(d4, d1); + z = Fetch128(s + 160); + d5 = Add(d5, z); + d6 = Shuf(kShuf, d6); + d8 = Shuf(kShuf, d8); + d7 = Xor(d7, d5); + d0 = Xor(d0, z); + d0 = Xor(d0, d6); + std::swap(d2, d8); + z = Fetch128(s + 176); + d1 = Add(d1, z); + d2 = Shuf(kShuf, d2); + d4 = Shuf(kShuf, d4); + d5 = Mul(kMult, d5); + d5 = Xor(d5, z); + d5 = Xor(d5, d2); + std::swap(d7, d1); + z = Fetch128(s + 192); + d6 = Add(d6, z); + d7 = Shuf(kShuf, d7); + d0 = Shuf(kShuf, d0); + d8 = Add(d8, d6); + d1 = Xor(d1, z); + d1 = Xor(d1, d7); + std::swap(d0, d6); + z = Fetch128(s + 208); + d2 = Add(d2, z); + d5 = Shuf(kShuf, d5); + d4 = Xor(d4, d2); + d6 = Xor(d6, z); + d6 = Xor(d6, d9); + std::swap(d5, d11); + z = Fetch128(s + 224); + d7 = Add(d7, z); + d8 = Shuf(kShuf, d8); + d1 = Shuf(kShuf, d1); + d0 = Xor(d0, d7); + d2 = Xor(d2, z); + d2 = Xor(d2, d8); + std::swap(d10, d4); + z = Fetch128(s + 240); + d3 = Add(d3, z); + d4 = Shuf(kShuf, d4); + d6 = Shuf(kShuf, d6); + d7 = Mul(kMult, d7); + d5 = Add(d5, d3); + d7 = Xor(d7, z); + d7 = Xor(d7, d4); + std::swap(d3, d9); + s += 256; + } while (s != end); + d6 = Add(Mul(kMult, d6), _mm_cvtsi64_si128(n)); + if (n % 256 != 0) { + d7 = Add(_mm_shuffle_epi32(d8, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)), d7); + d8 = Add(Mul(kMult, d8), _mm_cvtsi64_si128(farmhashxo::Hash64(s, n % 256))); + } + __m128i t[8]; + d0 = Mul(kMult, Shuf(kShuf, Mul(kMult, d0))); + d3 = Mul(kMult, Shuf(kShuf, Mul(kMult, d3))); + d9 = Mul(kMult, Shuf(kShuf, Mul(kMult, d9))); + d1 = Mul(kMult, Shuf(kShuf, Mul(kMult, d1))); + d0 = Add(d11, d0); + d3 = Xor(d7, d3); + d9 = Add(d8, d9); + d1 = Add(d10, d1); + d4 = Add(d3, d4); + d5 = Add(d9, d5); + d6 = Xor(d1, d6); + d2 = Add(d0, d2); + t[0] = d0; + t[1] = d3; + t[2] = d9; + t[3] = d1; + t[4] = d4; + t[5] = d5; + t[6] = d6; + t[7] = d2; + return farmhashxo::Hash64(reinterpret_cast<const char*>(t), sizeof(t)); +} + +uint64_t Hash64(const char *s, size_t len) { + // Empirically, farmhashxo seems faster until length 512. + return len >= 512 ? Hash64Long(s, len, k2, k1) : farmhashxo::Hash64(s, len); +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return len >= 512 ? Hash64Long(s, len, k1, seed) : + farmhashxo::Hash64WithSeed(s, len, seed); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { + return len >= 512 ? Hash64Long(s, len, seed0, seed1) : + farmhashxo::Hash64WithSeeds(s, len, seed0, seed1); +} + +#endif +} // namespace farmhashte +namespace farmhashnt { +#if !can_use_sse41 || !x86_64 + +uint32_t Hash32(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash32(s, len); +} + +#else + +uint32_t Hash32(const char *s, size_t len) { + return static_cast<uint32_t>(farmhashte::Hash64(s, len)); +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + return static_cast<uint32_t>(farmhashte::Hash64WithSeed(s, len, seed)); +} + +#endif +} // namespace farmhashnt +namespace farmhashmk { +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len, uint32_t seed = 0) { + uint32_t a = Fetch(s - 4 + (len >> 1)); + uint32_t b = Fetch(s + 4); + uint32_t c = Fetch(s + len - 8); + uint32_t d = Fetch(s + (len >> 1)); + uint32_t e = Fetch(s); + uint32_t f = Fetch(s + len - 4); + uint32_t h = d * c1 + len + seed; + a = Rotate(a, 12) + f; + h = Mur(c, h) + a; + a = Rotate(a, 3) + c; + h = Mur(e, h) + a; + a = Rotate(a + f, 12) + d; + h = Mur(b ^ seed, h) + a; + return fmix(h); +} + +STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len, uint32_t seed = 0) { + uint32_t b = seed; + uint32_t c = 9; + for (size_t i = 0; i < len; i++) { + signed char v = s[i]; + b = b * c1 + v; + c ^= b; + } + return fmix(Mur(b, Mur(len, c))); +} + +STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len, uint32_t seed = 0) { + uint32_t a = len, b = len * 5, c = 9, d = b + seed; + a += Fetch(s); + b += Fetch(s + len - 4); + c += Fetch(s + ((len >> 1) & 4)); + return fmix(seed ^ Mur(c, Mur(b, Mur(a, d)))); +} + +uint32_t Hash32(const char *s, size_t len) { + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) : + Hash32Len13to24(s, len); + } + + // len > 24 + uint32_t h = len, g = c1 * len, f = g; + uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2; + uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2; + uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2; + uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2; + uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2; + h ^= a0; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + h ^= a2; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + g ^= a1; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + g ^= a3; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + f += a4; + f = Rotate(f, 19) + 113; + size_t iters = (len - 1) / 20; + do { + uint32_t a = Fetch(s); + uint32_t b = Fetch(s + 4); + uint32_t c = Fetch(s + 8); + uint32_t d = Fetch(s + 12); + uint32_t e = Fetch(s + 16); + h += a; + g += b; + f += c; + h = Mur(d, h) + e; + g = Mur(c, g) + a; + f = Mur(b + e * c1, f) + d; + f += g; + g += f; + s += 20; + } while (--iters != 0); + g = Rotate(g, 11) * c1; + g = Rotate(g, 17) * c1; + f = Rotate(f, 11) * c1; + f = Rotate(f, 17) * c1; + h = Rotate(h + g, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + h = Rotate(h + f, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + return h; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return Hash32Len5to12(s, len, seed); + else return Hash32Len0to4(s, len, seed); + } + uint32_t h = Hash32Len13to24(s, 24, seed ^ len); + return Mur(Hash32(s + 24, len - 24) + seed, h); +} +} // namespace farmhashmk +namespace farmhashsu { +#if !can_use_sse42 || !can_use_aesni + +uint32_t Hash32(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash32(s, len); +} + +#else + +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +// Helpers for data-parallel operations (4x 32-bits). +STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); } +STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } +STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); } +STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } +STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); } +STATIC_INLINE __m128i RotateLeft(__m128i x, int c) { + return Or(_mm_slli_epi32(x, c), + _mm_srli_epi32(x, 32 - c)); +} +STATIC_INLINE __m128i Rol17(__m128i x) { return RotateLeft(x, 17); } +STATIC_INLINE __m128i Rol19(__m128i x) { return RotateLeft(x, 19); } +STATIC_INLINE __m128i Shuffle0321(__m128i x) { + return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)); +} + +uint32_t Hash32(const char *s, size_t len) { + const uint32_t seed = 81; + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? + farmhashmk::Hash32Len0to4(s, len) : + farmhashmk::Hash32Len5to12(s, len)) : + farmhashmk::Hash32Len13to24(s, len); + } + + if (len < 40) { + uint32_t a = len, b = seed * c2, c = a + b; + a += Fetch(s + len - 4); + b += Fetch(s + len - 20); + c += Fetch(s + len - 16); + uint32_t d = a; + a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21); + a = Mur(a, Mur(b, _mm_crc32_u32(c, d))); + a += Fetch(s + len - 12); + b += Fetch(s + len - 8); + d += a; + a += d; + b = Mur(b, d) * c2; + a = _mm_crc32_u32(a, b + c); + return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b; + } + +#undef Mulc1 +#define Mulc1(x) Mul((x), cc1) + +#undef Mulc2 +#define Mulc2(x) Mul((x), cc2) + +#undef Murk +#define Murk(a, h) \ + Add(k, \ + Mul5( \ + Rol19( \ + Xor( \ + Mulc2( \ + Rol17( \ + Mulc1(a))), \ + (h))))) + + const __m128i cc1 = _mm_set1_epi32(c1); + const __m128i cc2 = _mm_set1_epi32(c2); + __m128i h = _mm_set1_epi32(seed); + __m128i g = _mm_set1_epi32(c1 * seed); + __m128i f = g; + __m128i k = _mm_set1_epi32(0xe6546b64); + __m128i q; + if (len < 80) { + __m128i a = Fetch128(s); + __m128i b = Fetch128(s + 16); + __m128i c = Fetch128(s + (len - 15) / 2); + __m128i d = Fetch128(s + len - 32); + __m128i e = Fetch128(s + len - 16); + h = Add(h, a); + g = Add(g, b); + q = g; + g = Shuffle0321(g); + f = Add(f, c); + __m128i be = Add(b, Mulc1(e)); + h = Add(h, f); + f = Add(f, h); + h = Add(Murk(d, h), e); + k = Xor(k, _mm_shuffle_epi8(g, f)); + g = Add(Xor(c, g), a); + f = Add(Xor(be, f), d); + k = Add(k, be); + k = Add(k, _mm_shuffle_epi8(f, h)); + f = Add(f, g); + g = Add(g, f); + g = Add(_mm_set1_epi32(len), Mulc1(g)); + } else { + // len >= 80 + // The following is loosely modelled after farmhashmk::Hash32. + size_t iters = (len - 1) / 80; + len -= iters * 80; + +#undef Chunk +#define Chunk() do { \ + __m128i a = Fetch128(s); \ + __m128i b = Fetch128(s + 16); \ + __m128i c = Fetch128(s + 32); \ + __m128i d = Fetch128(s + 48); \ + __m128i e = Fetch128(s + 64); \ + h = Add(h, a); \ + g = Add(g, b); \ + g = Shuffle0321(g); \ + f = Add(f, c); \ + __m128i be = Add(b, Mulc1(e)); \ + h = Add(h, f); \ + f = Add(f, h); \ + h = Add(h, d); \ + q = Add(q, e); \ + h = Rol17(h); \ + h = Mulc1(h); \ + k = Xor(k, _mm_shuffle_epi8(g, f)); \ + g = Add(Xor(c, g), a); \ + f = Add(Xor(be, f), d); \ + std::swap(f, q); \ + q = _mm_aesimc_si128(q); \ + k = Add(k, be); \ + k = Add(k, _mm_shuffle_epi8(f, h)); \ + f = Add(f, g); \ + g = Add(g, f); \ + f = Mulc1(f); \ +} while (0) + + q = g; + while (iters-- != 0) { + Chunk(); + s += 80; + } + + if (len != 0) { + h = Add(h, _mm_set1_epi32(len)); + s = s + len - 80; + Chunk(); + } + } + + g = Shuffle0321(g); + k = Xor(k, g); + k = Xor(k, q); + h = Xor(h, q); + f = Mulc1(f); + k = Mulc2(k); + g = Mulc1(g); + h = Mulc2(h); + k = Add(k, _mm_shuffle_epi8(g, f)); + h = Add(h, f); + f = Add(f, h); + g = Add(g, k); + k = Add(k, g); + k = Xor(k, _mm_shuffle_epi8(f, h)); + __m128i buf[4]; + buf[0] = f; + buf[1] = g; + buf[2] = k; + buf[3] = h; + s = reinterpret_cast<char*>(buf); + uint32_t x = Fetch(s); + uint32_t y = Fetch(s+4); + uint32_t z = Fetch(s+8); + x = _mm_crc32_u32(x, Fetch(s+12)); + y = _mm_crc32_u32(y, Fetch(s+16)); + z = _mm_crc32_u32(z * c1, Fetch(s+20)); + x = _mm_crc32_u32(x, Fetch(s+24)); + y = _mm_crc32_u32(y * c1, Fetch(s+28)); + uint32_t o = y; + z = _mm_crc32_u32(z, Fetch(s+32)); + x = _mm_crc32_u32(x * c1, Fetch(s+36)); + y = _mm_crc32_u32(y, Fetch(s+40)); + z = _mm_crc32_u32(z * c1, Fetch(s+44)); + x = _mm_crc32_u32(x, Fetch(s+48)); + y = _mm_crc32_u32(y * c1, Fetch(s+52)); + z = _mm_crc32_u32(z, Fetch(s+56)); + x = _mm_crc32_u32(x, Fetch(s+60)); + return (o - x + y - z) * c1; +} + +#undef Chunk +#undef Murk +#undef Mulc2 +#undef Mulc1 + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); + else return farmhashmk::Hash32Len0to4(s, len, seed); + } + uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); + return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h); +} + +#endif +} // namespace farmhashsu +namespace farmhashsa { +#if !can_use_sse42 + +uint32_t Hash32(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash32(s, len); +} + +#else + +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +// Helpers for data-parallel operations (4x 32-bits). +STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); } +STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } +STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); } +STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } +STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); } +STATIC_INLINE __m128i Rotate(__m128i x, int c) { + return Or(_mm_slli_epi32(x, c), + _mm_srli_epi32(x, 32 - c)); +} +STATIC_INLINE __m128i Rot17(__m128i x) { return Rotate(x, 17); } +STATIC_INLINE __m128i Rot19(__m128i x) { return Rotate(x, 19); } +STATIC_INLINE __m128i Shuffle0321(__m128i x) { + return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)); +} + +uint32_t Hash32(const char *s, size_t len) { + const uint32_t seed = 81; + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? + farmhashmk::Hash32Len0to4(s, len) : + farmhashmk::Hash32Len5to12(s, len)) : + farmhashmk::Hash32Len13to24(s, len); + } + + if (len < 40) { + uint32_t a = len, b = seed * c2, c = a + b; + a += Fetch(s + len - 4); + b += Fetch(s + len - 20); + c += Fetch(s + len - 16); + uint32_t d = a; + a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21); + a = Mur(a, Mur(b, Mur(c, d))); + a += Fetch(s + len - 12); + b += Fetch(s + len - 8); + d += a; + a += d; + b = Mur(b, d) * c2; + a = _mm_crc32_u32(a, b + c); + return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b; + } + +#undef Mulc1 +#define Mulc1(x) Mul((x), cc1) + +#undef Mulc2 +#define Mulc2(x) Mul((x), cc2) + +#undef Murk +#define Murk(a, h) \ + Add(k, \ + Mul5( \ + Rot19( \ + Xor( \ + Mulc2( \ + Rot17( \ + Mulc1(a))), \ + (h))))) + + const __m128i cc1 = _mm_set1_epi32(c1); + const __m128i cc2 = _mm_set1_epi32(c2); + __m128i h = _mm_set1_epi32(seed); + __m128i g = _mm_set1_epi32(c1 * seed); + __m128i f = g; + __m128i k = _mm_set1_epi32(0xe6546b64); + if (len < 80) { + __m128i a = Fetch128(s); + __m128i b = Fetch128(s + 16); + __m128i c = Fetch128(s + (len - 15) / 2); + __m128i d = Fetch128(s + len - 32); + __m128i e = Fetch128(s + len - 16); + h = Add(h, a); + g = Add(g, b); + g = Shuffle0321(g); + f = Add(f, c); + __m128i be = Add(b, Mulc1(e)); + h = Add(h, f); + f = Add(f, h); + h = Add(Murk(d, h), e); + k = Xor(k, _mm_shuffle_epi8(g, f)); + g = Add(Xor(c, g), a); + f = Add(Xor(be, f), d); + k = Add(k, be); + k = Add(k, _mm_shuffle_epi8(f, h)); + f = Add(f, g); + g = Add(g, f); + g = Add(_mm_set1_epi32(len), Mulc1(g)); + } else { + // len >= 80 + // The following is loosely modelled after farmhashmk::Hash32. + size_t iters = (len - 1) / 80; + len -= iters * 80; + +#undef Chunk +#define Chunk() do { \ + __m128i a = Fetch128(s); \ + __m128i b = Fetch128(s + 16); \ + __m128i c = Fetch128(s + 32); \ + __m128i d = Fetch128(s + 48); \ + __m128i e = Fetch128(s + 64); \ + h = Add(h, a); \ + g = Add(g, b); \ + g = Shuffle0321(g); \ + f = Add(f, c); \ + __m128i be = Add(b, Mulc1(e)); \ + h = Add(h, f); \ + f = Add(f, h); \ + h = Add(Murk(d, h), e); \ + k = Xor(k, _mm_shuffle_epi8(g, f)); \ + g = Add(Xor(c, g), a); \ + f = Add(Xor(be, f), d); \ + k = Add(k, be); \ + k = Add(k, _mm_shuffle_epi8(f, h)); \ + f = Add(f, g); \ + g = Add(g, f); \ + f = Mulc1(f); \ +} while (0) + + while (iters-- != 0) { + Chunk(); + s += 80; + } + + if (len != 0) { + h = Add(h, _mm_set1_epi32(len)); + s = s + len - 80; + Chunk(); + } + } + + g = Shuffle0321(g); + k = Xor(k, g); + f = Mulc1(f); + k = Mulc2(k); + g = Mulc1(g); + h = Mulc2(h); + k = Add(k, _mm_shuffle_epi8(g, f)); + h = Add(h, f); + f = Add(f, h); + g = Add(g, k); + k = Add(k, g); + k = Xor(k, _mm_shuffle_epi8(f, h)); + __m128i buf[4]; + buf[0] = f; + buf[1] = g; + buf[2] = k; + buf[3] = h; + s = reinterpret_cast<char*>(buf); + uint32_t x = Fetch(s); + uint32_t y = Fetch(s+4); + uint32_t z = Fetch(s+8); + x = _mm_crc32_u32(x, Fetch(s+12)); + y = _mm_crc32_u32(y, Fetch(s+16)); + z = _mm_crc32_u32(z * c1, Fetch(s+20)); + x = _mm_crc32_u32(x, Fetch(s+24)); + y = _mm_crc32_u32(y * c1, Fetch(s+28)); + uint32_t o = y; + z = _mm_crc32_u32(z, Fetch(s+32)); + x = _mm_crc32_u32(x * c1, Fetch(s+36)); + y = _mm_crc32_u32(y, Fetch(s+40)); + z = _mm_crc32_u32(z * c1, Fetch(s+44)); + x = _mm_crc32_u32(x, Fetch(s+48)); + y = _mm_crc32_u32(y * c1, Fetch(s+52)); + z = _mm_crc32_u32(z, Fetch(s+56)); + x = _mm_crc32_u32(x, Fetch(s+60)); + return (o - x + y - z) * c1; +} + +#undef Chunk +#undef Murk +#undef Mulc2 +#undef Mulc1 + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); + else return farmhashmk::Hash32Len0to4(s, len, seed); + } + uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); + return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h); +} + +#endif +} // namespace farmhashsa +namespace farmhashcc { +// This file provides a 32-bit hash equivalent to CityHash32 (v1.1.1) +// and a 128-bit hash equivalent to CityHash128 (v1.1.1). It also provides +// a seeded 32-bit hash function similar to CityHash32. + +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len) { + uint32_t a = Fetch(s - 4 + (len >> 1)); + uint32_t b = Fetch(s + 4); + uint32_t c = Fetch(s + len - 8); + uint32_t d = Fetch(s + (len >> 1)); + uint32_t e = Fetch(s); + uint32_t f = Fetch(s + len - 4); + uint32_t h = len; + + return fmix(Mur(f, Mur(e, Mur(d, Mur(c, Mur(b, Mur(a, h))))))); +} + +STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len) { + uint32_t b = 0; + uint32_t c = 9; + for (size_t i = 0; i < len; i++) { + signed char v = s[i]; + b = b * c1 + v; + c ^= b; + } + return fmix(Mur(b, Mur(len, c))); +} + +STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len) { + uint32_t a = len, b = len * 5, c = 9, d = b; + a += Fetch(s); + b += Fetch(s + len - 4); + c += Fetch(s + ((len >> 1) & 4)); + return fmix(Mur(c, Mur(b, Mur(a, d)))); +} + +Y_PRAGMA_DIAGNOSTIC_PUSH +Y_PRAGMA_NO_WSHADOW +uint32_t Hash32(const char *s, size_t len) { + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) : + Hash32Len13to24(s, len); + } + + // len > 24 + uint32_t h = len, g = c1 * len, f = g; + uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2; + uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2; + uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2; + uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2; + uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2; + h ^= a0; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + h ^= a2; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + g ^= a1; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + g ^= a3; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + f += a4; + f = Rotate(f, 19); + f = f * 5 + 0xe6546b64; + size_t iters = (len - 1) / 20; + do { + uint32_t a0 = Rotate(Fetch(s) * c1, 17) * c2; + uint32_t a1 = Fetch(s + 4); + uint32_t a2 = Rotate(Fetch(s + 8) * c1, 17) * c2; + uint32_t a3 = Rotate(Fetch(s + 12) * c1, 17) * c2; + uint32_t a4 = Fetch(s + 16); + h ^= a0; + h = Rotate(h, 18); + h = h * 5 + 0xe6546b64; + f += a1; + f = Rotate(f, 19); + f = f * c1; + g += a2; + g = Rotate(g, 18); + g = g * 5 + 0xe6546b64; + h ^= a3 + a1; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + g ^= a4; + g = Bswap(g) * 5; + h += a4 * 5; + h = Bswap(h); + f += a0; + PERMUTE3(f, h, g); + s += 20; + } while (--iters != 0); + g = Rotate(g, 11) * c1; + g = Rotate(g, 17) * c1; + f = Rotate(f, 11) * c1; + f = Rotate(f, 17) * c1; + h = Rotate(h + g, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + h = Rotate(h + f, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + return h; +} +Y_PRAGMA_DIAGNOSTIC_POP + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); + else return farmhashmk::Hash32Len0to4(s, len, seed); + } + uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); + return Mur(Hash32(s + 24, len - 24) + seed, h); +} + +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +#undef Bswap +#define Bswap Bswap64 + +STATIC_INLINE uint64_t ShiftMix(uint64_t val) { + return val ^ (val >> 47); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) { + return Hash128to64(Uint128(u, v)); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) { + // Murmur-inspired hashing. + uint64_t a = (u ^ v) * mul; + a ^= (a >> 47); + uint64_t b = (v ^ a) * mul; + b ^= (b >> 47); + b *= mul; + return b; +} + +STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) { + if (len >= 8) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) + k2; + uint64_t b = Fetch(s + len - 8); + uint64_t c = Rotate(b, 37) * mul + a; + uint64_t d = (Rotate(a, 25) + b) * mul; + return HashLen16(c, d, mul); + } + if (len >= 4) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch32(s); + return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul); + } + if (len > 0) { + uint8_t a = s[0]; + uint8_t b = s[len >> 1]; + uint8_t c = s[len - 1]; + uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8); + uint32_t z = len + (static_cast<uint32_t>(c) << 2); + return ShiftMix(y * k2 ^ z * k0) * k2; + } + return k2; +} + +// Return a 16-byte hash for 48 bytes. Quick and dirty. +// Callers do best to use "random-looking" values for a and b. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) { + a += w; + b = Rotate(b + a + z, 21); + uint64_t c = a; + a += x; + a += y; + b += Rotate(a, 44); + return make_pair(a + z, b + c); +} + +// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + const char* s, uint64_t a, uint64_t b) { + return WeakHashLen32WithSeeds(Fetch(s), + Fetch(s + 8), + Fetch(s + 16), + Fetch(s + 24), + a, + b); +} + + + +// A subroutine for CityHash128(). Returns a decent 128-bit hash for strings +// of any length representable in signed long. Based on City and Murmur. +STATIC_INLINE uint128_t CityMurmur(const char *s, size_t len, uint128_t seed) { + uint64_t a = Uint128Low64(seed); + uint64_t b = Uint128High64(seed); + uint64_t c = 0; + uint64_t d = 0; + signed long l = len - 16; + if (l <= 0) { // len <= 16 + a = ShiftMix(a * k1) * k1; + c = b * k1 + HashLen0to16(s, len); + d = ShiftMix(a + (len >= 8 ? Fetch(s) : c)); + } else { // len > 16 + c = HashLen16(Fetch(s + len - 8) + k1, a); + d = HashLen16(b + len, c + Fetch(s + len - 16)); + a += d; + do { + a ^= ShiftMix(Fetch(s) * k1) * k1; + a *= k1; + b ^= a; + c ^= ShiftMix(Fetch(s + 8) * k1) * k1; + c *= k1; + d ^= c; + s += 16; + l -= 16; + } while (l > 0); + } + a = HashLen16(a, c); + b = HashLen16(d, b); + return Uint128(a ^ b, HashLen16(b, a)); +} + +uint128_t CityHash128WithSeed(const char *s, size_t len, uint128_t seed) { + if (len < 128) { + return CityMurmur(s, len, seed); + } + + // We expect len >= 128 to be the common case. Keep 56 bytes of state: + // v, w, x, y, and z. + pair<uint64_t, uint64_t> v, w; + uint64_t x = Uint128Low64(seed); + uint64_t y = Uint128High64(seed); + uint64_t z = len * k1; + v.first = Rotate(y ^ k1, 49) * k1 + Fetch(s); + v.second = Rotate(v.first, 42) * k1 + Fetch(s + 8); + w.first = Rotate(y + z, 35) * k1 + x; + w.second = Rotate(x + Fetch(s + 88), 53) * k1; + + // This is the same inner loop as CityHash64(), manually unrolled. + do { + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; + y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; + x ^= w.second; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * k1; + v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + s += 64; + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; + y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; + x ^= w.second; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * k1; + v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + s += 64; + len -= 128; + } while (LIKELY(len >= 128)); + x += Rotate(v.first + z, 49) * k0; + y = y * k0 + Rotate(w.second, 37); + z = z * k0 + Rotate(w.first, 27); + w.first *= 9; + v.first *= k0; + // If 0 < len < 128, hash up to 4 chunks of 32 bytes each from the end of s. + for (size_t tail_done = 0; tail_done < len; ) { + tail_done += 32; + y = Rotate(x + y, 42) * k0 + v.second; + w.first += Fetch(s + len - tail_done + 16); + x = x * k0 + w.first; + z += w.second + Fetch(s + len - tail_done); + w.second += v.first; + v = WeakHashLen32WithSeeds(s + len - tail_done, v.first + z, v.second); + v.first *= k0; + } + // At this point our 56 bytes of state should contain more than + // enough information for a strong 128-bit hash. We use two + // different 56-byte-to-8-byte hashes to get a 16-byte final result. + x = HashLen16(x, v.first); + y = HashLen16(y + z, w.first); + return Uint128(HashLen16(x + v.second, w.second) + y, + HashLen16(x + w.second, y + v.second)); +} + +STATIC_INLINE uint128_t CityHash128(const char *s, size_t len) { + return len >= 16 ? + CityHash128WithSeed(s + 16, len - 16, + Uint128(Fetch(s), Fetch(s + 8) + k0)) : + CityHash128WithSeed(s, len, Uint128(k0, k1)); +} + +uint128_t Fingerprint128(const char* s, size_t len) { + return CityHash128(s, len); +} +} // namespace farmhashcc +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +// BASIC STRING HASHING + +// Hash function for a byte array. See also Hash(), below. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint32_t Hash32(const char* s, size_t len) { + return DebugTweak( + (can_use_sse41 & x86_64) ? farmhashnt::Hash32(s, len) : + (can_use_sse42 & can_use_aesni) ? farmhashsu::Hash32(s, len) : + can_use_sse42 ? farmhashsa::Hash32(s, len) : + farmhashmk::Hash32(s, len)); +} + +// Hash function for a byte array. For convenience, a 32-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint32_t Hash32WithSeed(const char* s, size_t len, uint32_t seed) { + return DebugTweak( + (can_use_sse41 & x86_64) ? farmhashnt::Hash32WithSeed(s, len, seed) : + (can_use_sse42 & can_use_aesni) ? farmhashsu::Hash32WithSeed(s, len, seed) : + can_use_sse42 ? farmhashsa::Hash32WithSeed(s, len, seed) : + farmhashmk::Hash32WithSeed(s, len, seed)); +} + +// Hash function for a byte array. For convenience, a 64-bit seed is also +// hashed into the result. See also Hash(), below. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64(const char* s, size_t len) { + return DebugTweak( + (can_use_sse42 & x86_64) ? + farmhashte::Hash64(s, len) : + farmhashxo::Hash64(s, len)); +} + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +size_t Hash(const char* s, size_t len) { + return sizeof(size_t) == 8 ? Hash64(s, len) : Hash32(s, len); +} + +// Hash function for a byte array. For convenience, a 64-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64WithSeed(const char* s, size_t len, uint64_t seed) { + return DebugTweak(farmhashna::Hash64WithSeed(s, len, seed)); +} + +// Hash function for a byte array. For convenience, two seeds are also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64WithSeeds(const char* s, size_t len, uint64_t seed0, uint64_t seed1) { + return DebugTweak(farmhashna::Hash64WithSeeds(s, len, seed0, seed1)); +} + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint128_t Hash128(const char* s, size_t len) { + return DebugTweak(farmhashcc::Fingerprint128(s, len)); +} + +// Hash function for a byte array. For convenience, a 128-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint128_t Hash128WithSeed(const char* s, size_t len, uint128_t seed) { + return DebugTweak(farmhashcc::CityHash128WithSeed(s, len, seed)); +} + +// BASIC NON-STRING HASHING + +// FINGERPRINTING (i.e., good, portable, forever-fixed hash functions) + +// Fingerprint function for a byte array. Most useful in 32-bit binaries. +uint32_t Fingerprint32(const char* s, size_t len) { + return farmhashmk::Hash32(s, len); +} + +// Fingerprint function for a byte array. +uint64_t Fingerprint64(const char* s, size_t len) { + return farmhashna::Hash64(s, len); +} + +// Fingerprint function for a byte array. +uint128_t Fingerprint128(const char* s, size_t len) { + return farmhashcc::Fingerprint128(s, len); +} + +// Older and still available but perhaps not as fast as the above: +// farmhashns::Hash32{,WithSeed}() + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + +#if FARMHASHSELFTEST + +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashccTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +1039179260u, 1690343979u, 1018511555u, 2464489001u, +20368522u, 2663783964u, 175201532u, 1619210592u, +4081014168u, +2576519988u, +3285042206u, 502478099u, 739479538u, 1500332790u, +13754768u, 3789353455u, 3473868058u, 1909255088u, +2212771159u, +1112731063u, +826915357u, 2893489933u, 118369799u, 1848668220u, +1308219822u, 249416982u, 64306364u, 4221800195u, +1020067935u, +3955445564u, +563346294u, 550236731u, 2339016688u, 1826259714u, +3872358639u, 2295981050u, 1870005390u, 4015628802u, +1451961420u, +653440099u, +1292493871u, 164377749u, 1717712483u, 463414587u, 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+1907985531u, +3013721395u, 4214533685u, 4198804243u, 534879265u, +1517190881u, 3756787754u, 1152563554u, 1718750948u, +777737463u, +1402478860u, +1824562784u, 1879401449u, 3515818786u, 513165201u, +1423491227u, 2103067918u, 2291777410u, 1097943000u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashcc::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashcc::Hash32(data, len++)); { uint128_t u = farmhashcc::Fingerprint128(data, len++); uint64_t h = Uint128Low64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); h = Uint128High64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +Check(farmhashcc::Hash32WithSeed(data + offset, len, SEED)); +Check(farmhashcc::Hash32(data + offset, len)); +{ uint128_t u = farmhashcc::Fingerprint128(data + offset, len); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); } +{ uint128_t u = farmhashcc::CityHash128WithSeed(data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashccTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashcc::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; +cout << farmhashcc::Hash32(data + offset, len) << "u," << endl; +{ uint128_t u = farmhashcc::Fingerprint128(data + offset, len); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint128_t u = farmhashcc::CityHash128WithSeed(data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashccTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashccTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashccTest::Dump(0, i); + } + farmhashccTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashmkTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +4081014168u, +2576519988u, +2212771159u, +1112731063u, +1020067935u, +3955445564u, +1451961420u, +653440099u, +31917516u, +2957164615u, +2590087362u, +3879448744u, +176305566u, +2447367541u, +1359016305u, +3363804638u, +1117290165u, +1062549743u, +2437877004u, +1894455839u, +673206794u, +3486923651u, +3269862919u, +2303349487u, +1380660650u, +595525107u, +1525325287u, +2025609358u, +176408838u, +1592885012u, +864896482u, +2101378090u, +3489229104u, +2118965695u, +581644891u, +2718789079u, +631613207u, +4228658372u, +3867875546u, +3531368319u, +3804516756u, +3317755099u, +1619744564u, +2884717286u, +1088213445u, +2667691076u, +3727873235u, +2330406762u, +3616470388u, +967660719u, +4148162586u, +315219121u, +673084328u, +3047602355u, +1598963653u, +1267826661u, +2117362589u, +2861192253u, +1823625377u, +1380350078u, +1641748342u, +1176094482u, +269384321u, +2178982315u, +3480237248u, +2660755208u, +1850544433u, +3429699438u, +1262819303u, +640556464u, +2421125401u, +2188368608u, +2612932825u, +1474432581u, +173790449u, +2124882189u, +831272654u, +622960146u, +4238751051u, +3250317967u, +2120810248u, +1948231495u, +1389029321u, +2200398357u, +2134232963u, +2948072329u, +617717625u, +681164587u, +114859387u, +430545646u, +57239089u, +3163338012u, +3482496399u, +557662576u, +1102441413u, +2670159360u, +991116729u, +846014240u, +4233741566u, +1802317242u, +3129528802u, +1459456375u, +1305643039u, +3258671612u, +1578285833u, +868590079u, +1631034517u, +1695432937u, +561078856u, +1004115553u, +3086090507u, +3818348650u, +731596645u, +780926790u, +2544205955u, +158479164u, +3983514188u, +2004735250u, +3436218400u, +673684751u, +1463431419u, +2880490219u, +3223748024u, +2218318859u, +1474466194u, +2636437533u, +2206794961u, +140995728u, +1186394086u, +1805716888u, +1640037724u, +3942729099u, +1944727013u, +918951560u, +498666871u, +3486974657u, +2967205462u, +1167253804u, +1884281041u, +2866015002u, +4158319270u, +2627220079u, +3733319624u, +3317092271u, +438323662u, +3195868065u, +3426606709u, +360708338u, +1905491012u, +650004803u, +1351266252u, +3133279000u, +3722811115u, +2722412434u, +918432408u, +3678271248u, +269599647u, +621514057u, +3117077855u, +1545425390u, +2597567410u, +1221437820u, +3493254589u, +102787342u, +918861168u, +348795089u, +3439883229u, +2353641807u, +2209585469u, +4035884492u, +2686995435u, +1649888022u, +3852893848u, +3042700028u, +314103172u, +726977769u, +2489830276u, +2872753660u, +1316214989u, +1488801501u, +1811420390u, +639581627u, +2362837215u, +3634581834u, +3648576802u, +1257314182u, +762118371u, +4268447045u, +730167096u, +755561509u, +882614845u, +3696972894u, +228263661u, +1478636142u, +2767751651u, +1532617116u, +3838657661u, +1944359935u, +1401102137u, +3772933173u, +1050098254u, +1658079354u, +1846025728u, +2204244794u, +2017217424u, +1275162853u, +1429816745u, +2175565479u, +1716109139u, +1187506761u, +2434641075u, +2725597783u, +1795687662u, +1393312782u, +3511565397u, +627885430u, +4145733164u, +2519005353u, +231414775u, +1242015635u, +2760723497u, +2185540568u, +727314436u, +2358790354u, +1186393454u, +4234795645u, +350567813u, +866773875u, +3145590392u, +1158374055u, +3903123687u, +1862119793u, +2204587556u, +4266276976u, +4151548555u, +915250402u, +2874695320u, +2360311410u, +1099212769u, +1271542714u, +3473148363u, +1637325418u, +1807795989u, +2493819794u, +3800917924u, +4001205856u, +2582153621u, +3365872040u, +2890146216u, +2626363824u, +3133351295u, +4046827296u, +3053118771u, +4113026751u, +884356716u, +3828347401u, +10608262u, +830987972u, +1841080500u, +3202717763u, +3561778749u, +1906000052u, +3058284660u, +1432904514u, +2567431677u, +2550162530u, +665557986u, +936887821u, +2101205308u, +4253535847u, +1662043545u, +1253611611u, +2091370094u, +2635077370u, +2602176041u, +3624115809u, +748442714u, +2709749154u, +1023493343u, +860291012u, +3924715584u, +1536436740u, +2551145800u, +2391782865u, +1467705048u, +2583909796u, +3616666170u, +1162857372u, +4228631071u, +1510132376u, +2739165009u, +2656606142u, +3454996358u, +3155038853u, +1022087316u, +100044110u, +494208296u, +2746186477u, +4216782431u, +225448834u, +3728320521u, +335282866u, +3148194874u, +953503703u, +1293353960u, +202372387u, +1326119870u, +4045123735u, +3819994846u, +1629004186u, +1081099186u, +3591584153u, +1670825804u, +3404257979u, +3262192301u, +2572846095u, +3714992543u, +4264142572u, +529616678u, +2882154574u, +3006354178u, +3865969421u, +2007174907u, +308283107u, +2629833703u, +3159124075u, +1146492131u, +494104332u, +493149727u, +1342910585u, +521642387u, +2201695937u, +2517980959u, +2426821287u, +777374655u, +2228189792u, +4027055486u, +228976000u, +3842083468u, +1723920223u, +1192126094u, +787744493u, +2740368380u, +2284153001u, +2773829458u, +442000614u, +387830783u, +2169780670u, +2253144627u, +3532502484u, +1969684059u, +1165351416u, +3055056536u, +3582324253u, +231419363u, +770979865u, +3213983597u, +3690452836u, +935794639u, +3230602762u, +2841762457u, +407598927u, +1164479891u, +3721799696u, +354738136u, +1801566618u, +3206038542u, +2621379981u, +1943487262u, +3534745636u, +1074424589u, +1304517521u, +4133400969u, +2339317978u, +2135116860u, +4180643791u, +2415309340u, +1855926417u, +3418648630u, +1968113037u, +597304222u, +3668824865u, +3810008716u, +3014702569u, +3151212026u, +156057449u, +373134533u, +2068234004u, +191580563u, +3832754488u, +2924104199u, +2026044494u, +4065780435u, +122565840u, +4194985167u, +2744823717u, +2494098735u, +3753793370u, +1885739217u, +2488161225u, +3643797615u, +2653367310u, +2494061477u, +189968132u, +899646597u, +392100396u, +4012318310u, +3855777086u, +3566860954u, +2698574996u, +2414249905u, +1330623339u, +1263222732u, +1277741760u, +2194959402u, +1629656136u, +120494320u, +1072368005u, +1084245077u, +4011372748u, +1366613353u, +3108643228u, +3332219532u, +2114746095u, +3964007334u, +371687128u, +1084813876u, +126459896u, +4292782331u, +321283184u, +398168499u, +3604983506u, +560701543u, +2073961354u, +4240841868u, +4151211362u, +1338986875u, +4093476832u, +2269279497u, +3500846299u, +2510225147u, +598000444u, +1330391422u, +1432533385u, +4171226231u, +426821154u, +2932270996u, +3378981077u, +2217871549u, +1619647984u, +4051608043u, +3180237819u, +12919578u, +1375401767u, +371320427u, +2986640571u, +2336669859u, +3796464715u, +1892383284u, +306814912u, +2125823211u, +1863678891u, +3249703818u, +3840225752u, +281579900u, +264680257u, +4266359110u, +4182229890u, +2239659703u, +3627947372u, +2373929191u, +224082765u, +4053639058u, +1862360303u, +3187739624u, +3392706679u, +948039509u, +817505760u, +1215842393u, +3462222651u, +536021853u, +182346832u, +2731944883u, +2346674384u, +2640961678u, +3446695687u, +2271722179u, +1301069656u, +2803881468u, +2832614405u, +1691544398u, +698756814u, +3980620906u, +3565421410u, +754769376u, +4115923404u, +3909962218u, +2747614077u, +2888289845u, +1016920862u, +2790946178u, +3067070960u, +3173251481u, +1572132982u, +255048203u, +2996538818u, +3405398987u, +136106013u, +3581605228u, +4277437977u, +2147300534u, +3728426265u, +3483629996u, +1478452694u, +20756076u, +2774992067u, +432987927u, +1516771026u, +3511588664u, +2130994978u, +509385406u, +873090347u, +2163904107u, +4192239086u, +2532489989u, +1090772651u, +3910797408u, +3710882132u, +155010959u, +1369823531u, +1599664937u, +4035593587u, +1212746925u, +795822552u, +116689518u, +3674240941u, +1135576664u, +756750261u, +1027431362u, +390555140u, +2228460216u, +1506940482u, +3733857700u, +3048762971u, +2511703196u, +548609887u, +1607354252u, +659053982u, +259884450u, +1793130460u, +4083364495u, +3148555881u, +1764350138u, +2436485683u, +4031563025u, +3261860724u, +2475833430u, +2101726086u, +3191176464u, +2646658847u, +2127042126u, +771316100u, +2115922959u, +3208515045u, +2355437783u, +3621147793u, +1580163615u, +3211555675u, +3299188490u, +191613920u, +466733956u, +2939029038u, +1509152039u, +130591314u, +1892874677u, +1646908044u, +3452406523u, +3998376606u, +1199243832u, +2187108812u, +3189230066u, +4161151481u, +3371454980u, +3681788646u, +180842187u, +3685022399u, +3058749895u, +3250165163u, +2895367943u, +2627101723u, +771755098u, +1332921024u, +3638871848u, +514215135u, +3591227378u, +2300310870u, +3689533503u, +851607114u, +114330368u, +2709027386u, +1743034877u, +1013693860u, +288169008u, +3545190686u, +1052165084u, +3995862307u, +96902755u, +1097819851u, +2645431442u, +2184148618u, +2151206566u, +350979797u, +3467920900u, +421116779u, +1246252u, +4057835428u, +329324407u, +4104482417u, +844624570u, +3306265806u, +3787625025u, +4263241191u, +3251413927u, +2921204431u, +2931915325u, +992134330u, +3986338354u, +1327895216u, +1458363596u, +1480608532u, +728594368u, +3804366693u, +794404223u, +1643240863u, +793417255u, +4167916443u, +2683488959u, +3124925324u, +4184843652u, +3750971752u, +308509829u, +1054550805u, +2797511972u, +4043123412u, +1587158240u, +4050518606u, +3030062190u, +2589912753u, +603440067u, +937013191u, +1071662315u, +2100661456u, +2602005741u, +435516078u, +2260470147u, +1256268350u, +3612035u, +3368856141u, +151516099u, +3081868591u, +3363755681u, +2049963149u, +2885320434u, +84682005u, +2411758308u, +2695174275u, +3099904644u, +1787308684u, +1132379308u, +564634346u, +510236510u, +2804443681u, +3931864252u, +2064427949u, +1893979229u, +2916544974u, +1885887717u, +2978018250u, +494192125u, +2642662373u, +901112508u, +636035003u, +1658643797u, +172746975u, +517504890u, +3440019372u, +4144498044u, +1854755456u, +3672653905u, +4176892856u, +382159097u, +282871690u, +3629300472u, +2500754041u, +1677659759u, +1067175061u, +161654075u, +1672575536u, +346120493u, +2730229631u, +203466442u, +1244549529u, +199761971u, +2744895408u, +3195315331u, +2124618519u, +3261045496u, +985339699u, +3385585455u, +1545740710u, +3636652160u, +2167020081u, +1207897204u, +28752417u, +2895834146u, +3640845375u, +3750293073u, +548997850u, +4207814196u, +4183030708u, +2462810989u, +3929965401u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashmk::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashmk::Hash32(data, len++)); IsAlive(farmhashmk::Hash32(data, len++)); len -= 3; return alive > 0; } +Check(farmhashmk::Hash32WithSeed(data + offset, len, SEED)); +Check(farmhashmk::Hash32(data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashmkTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashmk::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; +cout << farmhashmk::Hash32(data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashmkTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashmkTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashmkTest::Dump(0, i); + } + farmhashmkTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashnaTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +1140953930u, 861465670u, +3277735313u, 2681724312u, +2598464059u, 797982799u, +890626835u, 800175912u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +3283896453u, 1867689945u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +1110588164u, 4186314283u, +161451183u, 3943596029u, +4019337850u, 452431531u, +283198166u, 2741341286u, +3379021470u, 2557197665u, +299850021u, 2532580744u, +452473466u, 1706958772u, +1298374911u, 3099673830u, +2199864459u, 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3647886687u, +3110327607u, 1072658422u, +379861934u, 1557579480u, +4124127129u, 2271365865u, +3880613089u, 739218494u, +547346027u, 388559045u, +3147335977u, 176230425u, +3094853730u, 2554321205u, +1495176194u, 4093461535u, +3521297827u, 4108148413u, +1913727929u, 1177947623u, +1911655402u, 1053371241u, +3265708874u, 1266515850u, +1045540427u, 3194420196u, +3717104621u, 1144474110u, +1464392345u, 52070157u, +4144237690u, 3350490823u, +4166253320u, 2747410691u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashna::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashna::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashna::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashna::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashnaTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashna::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashna::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashna::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashnaTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashnaTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashnaTest::Dump(0, i); + } + farmhashnaTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashntTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +2681724312u, +797982799u, +921001710u, +2134990486u, +2244477846u, +2992121793u, +3943596029u, +452431531u, +2557197665u, +2532580744u, +3099673830u, +3696623795u, +3281581178u, +1882212500u, +275903667u, 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+2683090634u, +2774816580u, +437560100u, +512012738u, +3305170944u, +665292744u, +3580039116u, +1579404983u, +3397891494u, +710590371u, +2514565805u, +3624609754u, +3516075816u, +1314000850u, +1935166880u, +3257747610u, +3776931214u, +3183054185u, +675129307u, +3333261712u, +1154611403u, +2759854023u, +1963228038u, +505138315u, +1803966773u, +4032705384u, +798395739u, +3473799845u, +476400898u, +602972493u, +3289878097u, +2520311409u, +3214794876u, +748160407u, +1326769504u, +902775872u, +1372805534u, +1213925114u, +3009384989u, +3781981134u, +2835608783u, +2716786748u, +1669490957u, +1089334066u, +250756920u, +4041016629u, +2495807367u, +2008251381u, +106212622u, +1927268995u, +2251978818u, +3788056262u, +3678660147u, +2656772270u, +1997584981u, +2668998785u, +2954162084u, +845687881u, +776018378u, +2066910012u, +918315064u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashnt::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashnt::Hash32(data, len++)); IsAlive(farmhashnt::Hash32(data, len++)); len -= 3; return alive > 0; } +Check(farmhashnt::Hash32WithSeed(data + offset, len, SEED)); +Check(farmhashnt::Hash32(data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashntTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashnt::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; +cout << farmhashnt::Hash32(data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashntTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashntTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashntTest::Dump(0, i); + } + farmhashntTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashsaTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +4081014168u, +2576519988u, +2212771159u, +1112731063u, +1020067935u, +3955445564u, +1451961420u, +653440099u, +31917516u, +2957164615u, +2590087362u, +3879448744u, +176305566u, +2447367541u, +1359016305u, +3363804638u, +1117290165u, +1062549743u, +2437877004u, +1894455839u, +673206794u, +3486923651u, +3269862919u, +2303349487u, +1380660650u, +595525107u, +1525325287u, +2025609358u, +176408838u, +1592885012u, +864896482u, +2101378090u, +3489229104u, +2118965695u, +581644891u, +2718789079u, +631613207u, +4228658372u, +3867875546u, +3531368319u, +3804516756u, +3317755099u, +1619744564u, +2884717286u, +1088213445u, +2667691076u, +3727873235u, +2330406762u, +858590707u, +123802208u, +4150036245u, +182283099u, +1478882570u, +3282617403u, +819171187u, +1172627392u, +4254302102u, +2957028020u, +437030323u, +2452147680u, +2868246750u, +3530169402u, +3154852132u, +215019192u, +357580983u, +1354454461u, +1108813287u, +2324008118u, +2315997713u, +4181601562u, +1360882441u, +92423273u, +3048866755u, +3369188505u, +3664371439u, +2920710428u, +1027891570u, +2653166430u, +3461888315u, +1475780447u, +292769636u, +1737473313u, +4064110516u, +4170160075u, +762850927u, +3630603695u, +2803307356u, +844987665u, +460980967u, +3005635467u, +2802568977u, +588668033u, +2148940781u, +3239099984u, +1266953698u, +3197808789u, +3519942533u, +2511995334u, +2553810188u, +871667697u, +1358675720u, +1499319171u, +2044931270u, +1210355103u, 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+2918326659u, +2245402721u, +2692910474u, +2374383269u, +342400227u, +2961437795u, +3899230368u, +337787132u, +3664444935u, +1269451153u, +2971526729u, +1486511182u, +791070133u, +2570319890u, +3482497490u, +2134230518u, +4273391202u, +1825511330u, +3947753714u, +1389755724u, +3995075516u, +2081052615u, +3626343470u, +4213603435u, +2137917278u, +2898987303u, +3059215715u, +3383237881u, +3003674434u, +409174425u, +1911915604u, +2087728055u, +2942005882u, +3386522440u, +714936074u, +261924004u, +3268784033u, +1141188757u, +2413217552u, +1515163433u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashsa::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashsa::Hash32(data, len++)); IsAlive(farmhashsa::Hash32(data, len++)); len -= 3; return alive > 0; } +Check(farmhashsa::Hash32WithSeed(data + offset, len, SEED)); +Check(farmhashsa::Hash32(data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashsaTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashsa::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; +cout << farmhashsa::Hash32(data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashsaTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashsaTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashsaTest::Dump(0, i); + } + farmhashsaTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashsuTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +4081014168u, +2576519988u, +2212771159u, +1112731063u, +1020067935u, +3955445564u, +1451961420u, +653440099u, +31917516u, +2957164615u, +2590087362u, +3879448744u, +176305566u, +2447367541u, +1359016305u, +3363804638u, +1117290165u, +1062549743u, +2437877004u, +1894455839u, +673206794u, +3486923651u, +3269862919u, +2303349487u, +1380660650u, +595525107u, +1525325287u, +2025609358u, +176408838u, +1592885012u, +864896482u, +2101378090u, +3489229104u, +2118965695u, +581644891u, +2718789079u, +631613207u, +4228658372u, +3867875546u, +3531368319u, +3804516756u, +3317755099u, +1619744564u, +2884717286u, +1088213445u, +2667691076u, +3727873235u, +2330406762u, +858590707u, +457744844u, +4150036245u, +2000404290u, +1478882570u, +901678172u, +819171187u, +195942998u, +4254302102u, +3967266927u, +437030323u, +4018009204u, +2868246750u, +3540087514u, +3154852132u, +3319116625u, +357580983u, +3177665294u, +1108813287u, +1253366798u, +2315997713u, +510718750u, +1360882441u, +2770216279u, +3048866755u, +3406961221u, +3664371439u, +1151145514u, +1027891570u, +2699067992u, +3461888315u, +198061905u, +292769636u, +1106771795u, +4064110516u, +3258279756u, +762850927u, +1818699721u, +2803307356u, +3919169404u, +460980967u, +3125535078u, +2802568977u, +3582546426u, +2148940781u, +3963274378u, +1266953698u, +204185123u, +1100034381u, +3009193601u, +4200651967u, +274889605u, +2700589508u, +952511689u, +3765324859u, +3465498478u, +4014967037u, +2070988082u, +2972423530u, +3068638223u, +4156773651u, +489509804u, +1323863238u, +3731914806u, +2846098469u, +2728930632u, +346814072u, +848146907u, +551160669u, +4165126521u, +2039095001u, +4179859388u, +2434936359u, +2764414551u, +238491210u, +732483969u, +3366512764u, +478307468u, +4124179572u, +4142733597u, +1953448206u, +4199329278u, +865077060u, +2627662116u, +2802499360u, +3141206831u, +1959218197u, +911371451u, +125987200u, +2821366175u, +2530992747u, +2409206225u, +117991880u, +2133402461u, +895510531u, +428719601u, +3036014536u, +1223783733u, +733793540u, +970650405u, +547701766u, +570764615u, +3224485368u, +3192714940u, +319942831u, +3940200341u, +362056204u, +2832368105u, +1853281226u, +3296434636u, +3752508307u, +604292768u, +2231940616u, +1204094681u, +866194005u, +2405201650u, +2466384396u, +380829379u, +230033818u, +2783417588u, +4249886729u, +829569301u, +2988322580u, +2299983554u, +74748560u, +737514425u, +3153050211u, +652642663u, +1270205115u, 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+2423834608u, +2820147055u, +1378120632u, +1240565187u, +3180720050u, +680831086u, +3309658414u, +1986166490u, +762099827u, +510883662u, +2047373648u, +3606742294u, +3894965352u, +2342078853u, +1091255717u, +776594727u, +3217317445u, +1574468485u, +3844504016u, +2819598918u, +1037401010u, +2550943503u, +3867184001u, +1687911772u, +165313836u, +1679575281u, +2418947263u, +2038774952u, +3913543652u, +3209155736u, +149905221u, +3859604717u, +713919631u, +4069810796u, +1882959164u, +1019939034u, +2379867302u, +3666323035u, +1157389013u, +2422300650u, +3366777340u, +2526452062u, +1313747885u, +1039617868u, +1620553692u, +2032976978u, +578789528u, +1592846839u, +2270630604u, +897850577u, +1603294178u, +3105664807u, +1442670138u, +1728019360u, +79313861u, +1683031101u, +1913067024u, +4070719870u, +708986470u, +2586453359u, +3993348863u, +3358251279u, +3003552537u, +750174793u, +836888956u, +4190747426u, +4251291318u, +4145164938u, +1366883260u, +1912910955u, +510192669u, +1851315039u, +3574241274u, +3220062924u, +2821142039u, +1317082195u, +2274293302u, +1839219569u, +126586168u, +3989293643u, +2680178207u, +347056948u, +799681430u, +2864517481u, +3180404853u, +213140045u, +1956305184u, +1474675286u, +3085723423u, +2841859626u, +308421914u, +3670309263u, +1765052231u, +245459238u, +113434331u, +4079521092u, +2115235526u, +2943408816u, +1055476938u, +1506442339u, +2291296392u, +3267864332u, +1282145528u, +3700108015u, +1932843667u, +2677701670u, +6041177u, +3889648557u, +1461025478u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashsu::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashsu::Hash32(data, len++)); IsAlive(farmhashsu::Hash32(data, len++)); len -= 3; return alive > 0; } +Check(farmhashsu::Hash32WithSeed(data + offset, len, SEED)); +Check(farmhashsu::Hash32(data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashsuTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashsu::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; +cout << farmhashsu::Hash32(data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashsuTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashsuTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashsuTest::Dump(0, i); + } + farmhashsuTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashteTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +1140953930u, 861465670u, +3277735313u, 2681724312u, +2598464059u, 797982799u, +890626835u, 800175912u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +3283896453u, 1867689945u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +1110588164u, 4186314283u, +161451183u, 3943596029u, +4019337850u, 452431531u, +283198166u, 2741341286u, +3379021470u, 2557197665u, +299850021u, 2532580744u, +452473466u, 1706958772u, +1298374911u, 3099673830u, +2199864459u, 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and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashte::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashte::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashte::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashte::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashteTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashte::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashte::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashte::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashteTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashteTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashteTest::Dump(0, i); + } + farmhashteTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashuoTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +3277735313u, 2681724312u, +2598464059u, 797982799u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +161451183u, 3943596029u, +4019337850u, 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251085588u, +830410677u, 3172220325u, +3897208579u, 1940535730u, +151909546u, 2384458112u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashuo::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashuo::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashuo::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashuoTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashuo::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashuo::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashuoTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashuoTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashuoTest::Dump(0, i); + } + farmhashuoTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashxoTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +1140953930u, 861465670u, +3277735313u, 2681724312u, +2598464059u, 797982799u, +890626835u, 800175912u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +3283896453u, 1867689945u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +1110588164u, 4186314283u, +161451183u, 3943596029u, +4019337850u, 452431531u, +283198166u, 2741341286u, 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do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashxo::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashxo::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashxo::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashxo::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashxoTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashxo::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashxo::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashxo::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashxoTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashxoTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashxoTest::Dump(0, i); + } + farmhashxoTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif + +int main() { + farmhashccTest::RunTest(); + farmhashmkTest::RunTest(); + farmhashnaTest::RunTest(); + farmhashntTest::RunTest(); + farmhashsaTest::RunTest(); + farmhashsuTest::RunTest(); + farmhashteTest::RunTest(); + farmhashuoTest::RunTest(); + farmhashxoTest::RunTest(); + __builtin_unreachable(); +} + +#endif // FARMHASHSELFTEST diff --git a/contrib/libs/farmhash/farmhash.h b/contrib/libs/farmhash/farmhash.h new file mode 100644 index 0000000000..95388de696 --- /dev/null +++ b/contrib/libs/farmhash/farmhash.h @@ -0,0 +1,328 @@ +// Copyright (c) 2014 Google, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. +// +// FarmHash, by Geoff Pike + +// +// http://code.google.com/p/farmhash/ +// +// This file provides a few functions for hashing strings and other +// data. All of them are high-quality functions in the sense that +// they do well on standard tests such as Austin Appleby's SMHasher. +// They're also fast. FarmHash is the successor to CityHash. +// +// Functions in the FarmHash family are not suitable for cryptography. +// +// WARNING: This code has been only lightly tested on big-endian platforms! +// It is known to work well on little-endian platforms that have a small penalty +// for unaligned reads, such as current Intel and AMD moderate-to-high-end CPUs. +// It should work on all 32-bit and 64-bit platforms that allow unaligned reads; +// bug reports are welcome. +// +// By the way, for some hash functions, given strings a and b, the hash +// of a+b is easily derived from the hashes of a and b. This property +// doesn't hold for any hash functions in this file. + +#ifndef FARM_HASH_H_ +#define FARM_HASH_H_ + +#include <assert.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> // for memcpy and memset +#include <utility> + +#ifndef NAMESPACE_FOR_HASH_FUNCTIONS +#define NAMESPACE_FOR_HASH_FUNCTIONS util +#endif + +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +#if defined(FARMHASH_UINT128_T_DEFINED) +#if defined(__clang__) +#if !defined(uint128_t) +#define uint128_t __uint128_t +#endif +#endif +inline uint64_t Uint128Low64(const uint128_t x) { + return static_cast<uint64_t>(x); +} +inline uint64_t Uint128High64(const uint128_t x) { + return static_cast<uint64_t>(x >> 64); +} +inline uint128_t Uint128(uint64_t lo, uint64_t hi) { + return lo + (((uint128_t)hi) << 64); +} +#else +typedef std::pair<uint64_t, uint64_t> uint128_t; +inline uint64_t Uint128Low64(const uint128_t x) { return x.first; } +inline uint64_t Uint128High64(const uint128_t x) { return x.second; } +inline uint128_t Uint128(uint64_t lo, uint64_t hi) { return uint128_t(lo, hi); } +#endif + + +// BASIC STRING HASHING + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +size_t Hash(const char* s, size_t len); + +// Hash function for a byte array. Most useful in 32-bit binaries. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint32_t Hash32(const char* s, size_t len); + +// Hash function for a byte array. For convenience, a 32-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint32_t Hash32WithSeed(const char* s, size_t len, uint32_t seed); + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64(const char* s, size_t len); + +// Hash function for a byte array. For convenience, a 64-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64WithSeed(const char* s, size_t len, uint64_t seed); + +// Hash function for a byte array. For convenience, two seeds are also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64WithSeeds(const char* s, size_t len, + uint64_t seed0, uint64_t seed1); + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint128_t Hash128(const char* s, size_t len); + +// Hash function for a byte array. For convenience, a 128-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint128_t Hash128WithSeed(const char* s, size_t len, uint128_t seed); + +// BASIC NON-STRING HASHING + +// Hash 128 input bits down to 64 bits of output. +// This is intended to be a reasonably good hash function. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +inline uint64_t Hash128to64(uint128_t x) { + // Murmur-inspired hashing. + const uint64_t kMul = 0x9ddfea08eb382d69ULL; + uint64_t a = (Uint128Low64(x) ^ Uint128High64(x)) * kMul; + a ^= (a >> 47); + uint64_t b = (Uint128High64(x) ^ a) * kMul; + b ^= (b >> 47); + b *= kMul; + return b; +} + +// FINGERPRINTING (i.e., good, portable, forever-fixed hash functions) + +// Fingerprint function for a byte array. Most useful in 32-bit binaries. +uint32_t Fingerprint32(const char* s, size_t len); + +// Fingerprint function for a byte array. +uint64_t Fingerprint64(const char* s, size_t len); + +// Fingerprint function for a byte array. +uint128_t Fingerprint128(const char* s, size_t len); + +// This is intended to be a good fingerprinting primitive. +// See below for more overloads. +inline uint64_t Fingerprint(uint128_t x) { + // Murmur-inspired hashing. + const uint64_t kMul = 0x9ddfea08eb382d69ULL; + uint64_t a = (Uint128Low64(x) ^ Uint128High64(x)) * kMul; + a ^= (a >> 47); + uint64_t b = (Uint128High64(x) ^ a) * kMul; + b ^= (b >> 44); + b *= kMul; + b ^= (b >> 41); + b *= kMul; + return b; +} + +// This is intended to be a good fingerprinting primitive. +inline uint64_t Fingerprint(uint64_t x) { + // Murmur-inspired hashing. + const uint64_t kMul = 0x9ddfea08eb382d69ULL; + uint64_t b = x * kMul; + b ^= (b >> 44); + b *= kMul; + b ^= (b >> 41); + b *= kMul; + return b; +} + +#ifndef FARMHASH_NO_CXX_STRING + +// Convenience functions to hash or fingerprint C++ strings. +// These require that Str::data() return a pointer to the first char +// (as a const char*) and that Str::length() return the string's length; +// they work with std::string, for example. + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline size_t Hash(const Str& s) { + assert(sizeof(s[0]) == 1); + return Hash(s.data(), s.length()); +} + +// Hash function for a byte array. Most useful in 32-bit binaries. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint32_t Hash32(const Str& s) { + assert(sizeof(s[0]) == 1); + return Hash32(s.data(), s.length()); +} + +// Hash function for a byte array. For convenience, a 32-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint32_t Hash32WithSeed(const Str& s, uint32_t seed) { + assert(sizeof(s[0]) == 1); + return Hash32WithSeed(s.data(), s.length(), seed); +} + +// Hash 128 input bits down to 64 bits of output. +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint64_t Hash64(const Str& s) { + assert(sizeof(s[0]) == 1); + return Hash64(s.data(), s.length()); +} + +// Hash function for a byte array. For convenience, a 64-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint64_t Hash64WithSeed(const Str& s, uint64_t seed) { + assert(sizeof(s[0]) == 1); + return Hash64WithSeed(s.data(), s.length(), seed); +} + +// Hash function for a byte array. For convenience, two seeds are also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint64_t Hash64WithSeeds(const Str& s, uint64_t seed0, uint64_t seed1) { + assert(sizeof(s[0]) == 1); + return Hash64WithSeeds(s.data(), s.length(), seed0, seed1); +} + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint128_t Hash128(const Str& s) { + assert(sizeof(s[0]) == 1); + return Hash128(s.data(), s.length()); +} + +// Hash function for a byte array. For convenience, a 128-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +template <typename Str> +inline uint128_t Hash128WithSeed(const Str& s, uint128_t seed) { + assert(sizeof(s[0]) == 1); + return Hash128(s.data(), s.length(), seed); +} + +// FINGERPRINTING (i.e., good, portable, forever-fixed hash functions) + +// Fingerprint function for a byte array. Most useful in 32-bit binaries. +template <typename Str> +inline uint32_t Fingerprint32(const Str& s) { + assert(sizeof(s[0]) == 1); + return Fingerprint32(s.data(), s.length()); +} + +// Fingerprint 128 input bits down to 64 bits of output. +// Fingerprint function for a byte array. +template <typename Str> +inline uint64_t Fingerprint64(const Str& s) { + assert(sizeof(s[0]) == 1); + return Fingerprint64(s.data(), s.length()); +} + +// Fingerprint function for a byte array. +template <typename Str> +inline uint128_t Fingerprint128(const Str& s) { + assert(sizeof(s[0]) == 1); + return Fingerprint128(s.data(), s.length()); +} + +#endif + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + +/* gently define FARMHASH_BIG_ENDIAN when detected big-endian machine */ +#if defined(__BIG_ENDIAN__) + #if !defined(FARMHASH_BIG_ENDIAN) + #define FARMHASH_BIG_ENDIAN + #endif +#elif defined(__LITTLE_ENDIAN__) + // nothing for little-endian +#elif defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && (__BYTE_ORDER == __ORDER_LITTLE_ENDIAN__) + // nothing for little-endian +#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__BYTE_ORDER == __ORDER_BIG_ENDIAN__) + #if !defined(FARMHASH_BIG_ENDIAN) + #define FARMHASH_BIG_ENDIAN + #endif +#elif defined(__linux__) || defined(__CYGWIN__) || defined( __GNUC__ ) || defined( __GNU_LIBRARY__ ) + #include <endian.h> // libc6-dev, GLIBC + #if BYTE_ORDER == BIG_ENDIAN + #if !defined(FARMHASH_BIG_ENDIAN) + #define FARMHASH_BIG_ENDIAN + #endif + #endif +#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) + #include <sys/endian.h> + #if BYTE_ORDER == BIG_ENDIAN + #if !defined(FARMHASH_BIG_ENDIAN) + #define FARMHASH_BIG_ENDIAN + #endif + #endif +#elif defined(_WIN32) + // Windows is (currently) little-endian +#else + #error "Unable to determine endianness!" +#endif /* __BIG_ENDIAN__ */ + +#endif // FARM_HASH_H_ diff --git a/contrib/libs/farmhash/farmhash_iface.cc b/contrib/libs/farmhash/farmhash_iface.cc new file mode 100644 index 0000000000..a9c3ca77f2 --- /dev/null +++ b/contrib/libs/farmhash/farmhash_iface.cc @@ -0,0 +1,106 @@ +#include "common.h" + +#include "farmhash_iface.h" + +#include <util/system/cpu_id.h> + +namespace NAMESPACE_FOR_HASH_FUNCTIONS { + +// BASIC STRING HASHING + +// Hash function for a byte array. See also Hash(), below. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint32_t Hash32(const char* s, size_t len) { + return DebugTweak( + (NX86::CachedHaveSSE41() & x86_64) ? farmhashnt::Hash32(s, len) : + (NX86::CachedHaveSSE42() & NX86::CachedHaveAES()) ? farmhashsu::Hash32(s, len) : + NX86::CachedHaveSSE42() ? farmhashsa::Hash32(s, len) : + farmhashmk::Hash32(s, len)); +} + +// Hash function for a byte array. For convenience, a 32-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint32_t Hash32WithSeed(const char* s, size_t len, uint32_t seed) { + return DebugTweak( + (NX86::CachedHaveSSE41() & x86_64) ? farmhashnt::Hash32WithSeed(s, len, seed) : + (NX86::CachedHaveSSE42() & NX86::CachedHaveAES()) ? farmhashsu::Hash32WithSeed(s, len, seed) : + NX86::CachedHaveSSE42() ? farmhashsa::Hash32WithSeed(s, len, seed) : + farmhashmk::Hash32WithSeed(s, len, seed)); +} + +// Hash function for a byte array. For convenience, a 64-bit seed is also +// hashed into the result. See also Hash(), below. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64(const char* s, size_t len) { + return DebugTweak( + (NX86::CachedHaveSSE42() & x86_64) ? + farmhashte::Hash64(s, len) : + farmhashxo::Hash64(s, len)); +} + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +size_t Hash(const char* s, size_t len) { + return sizeof(size_t) == 8 ? Hash64(s, len) : Hash32(s, len); +} + +// Hash function for a byte array. For convenience, a 64-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64WithSeed(const char* s, size_t len, uint64_t seed) { + return DebugTweak(farmhashna::Hash64WithSeed(s, len, seed)); +} + +// Hash function for a byte array. For convenience, two seeds are also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint64_t Hash64WithSeeds(const char* s, size_t len, uint64_t seed0, uint64_t seed1) { + return DebugTweak(farmhashna::Hash64WithSeeds(s, len, seed0, seed1)); +} + +// Hash function for a byte array. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint128_t Hash128(const char* s, size_t len) { + return DebugTweak(farmhashcc::Fingerprint128(s, len)); +} + +// Hash function for a byte array. For convenience, a 128-bit seed is also +// hashed into the result. +// May change from time to time, may differ on different platforms, may differ +// depending on NDEBUG. +uint128_t Hash128WithSeed(const char* s, size_t len, uint128_t seed) { + return DebugTweak(farmhashcc::CityHash128WithSeed(s, len, seed)); +} + +// BASIC NON-STRING HASHING + +// FINGERPRINTING (i.e., good, portable, forever-fixed hash functions) + +// Fingerprint function for a byte array. Most useful in 32-bit binaries. +uint32_t Fingerprint32(const char* s, size_t len) { + return farmhashmk::Hash32(s, len); +} + +// Fingerprint function for a byte array. +uint64_t Fingerprint64(const char* s, size_t len) { + return farmhashna::Hash64(s, len); +} + +// Fingerprint function for a byte array. +uint128_t Fingerprint128(const char* s, size_t len) { + return farmhashcc::Fingerprint128(s, len); +} + +// Older and still available but perhaps not as fast as the above: +// farmhashns::Hash32{,WithSeed}() + +} // namespace NAMESPACE_FOR_HASH_FUNCTIONS + diff --git a/contrib/libs/farmhash/farmhash_iface.h b/contrib/libs/farmhash/farmhash_iface.h new file mode 100644 index 0000000000..936aafd494 --- /dev/null +++ b/contrib/libs/farmhash/farmhash_iface.h @@ -0,0 +1,28 @@ +#define FARMHASH_INTERFACE(name) namespace name { \ + uint32_t Hash32(const char* s, size_t len); \ + uint32_t Hash32WithSeed(const char* s, size_t len, uint32_t seed); \ + uint64_t Hash64(const char* s, size_t len); \ + uint64_t Hash64WithSeed(const char* s, size_t len, uint64_t seed); \ + uint64_t Hash64WithSeeds(const char* s, size_t len, uint64_t seed0, uint64_t seed1); \ + uint128_t Hash128(const char* s, size_t len); \ + uint128_t Hash128WithSeed(const char* s, size_t len, uint128_t seed); \ +} + +namespace farmhashcc { + uint32_t Fingerprint32(const char* s, size_t len); + uint64_t Fingerprint64(const char* s, size_t len); + uint128_t Fingerprint128(const char* s, size_t len); + uint128_t CityHash128WithSeed(const char* s, size_t len, uint128_t seed); +} + +FARMHASH_INTERFACE(farmhashcc) +FARMHASH_INTERFACE(farmhashsa) +FARMHASH_INTERFACE(farmhashsu) +FARMHASH_INTERFACE(farmhashmk) +FARMHASH_INTERFACE(farmhashnt) +FARMHASH_INTERFACE(farmhashte) +FARMHASH_INTERFACE(farmhashxo) +FARMHASH_INTERFACE(farmhashuo) +FARMHASH_INTERFACE(farmhashna) + +#undef FARMHASH_INTERFACE diff --git a/contrib/libs/farmhash/farmhashcc.cc b/contrib/libs/farmhash/farmhashcc.cc new file mode 100644 index 0000000000..d3e30af4c3 --- /dev/null +++ b/contrib/libs/farmhash/farmhashcc.cc @@ -0,0 +1,314 @@ +#include "common.h" + +namespace { + #include "farmhashsa.cc" +} + +namespace farmhashcc { +// This file provides a 32-bit hash equivalent to CityHash32 (v1.1.1) +// and a 128-bit hash equivalent to CityHash128 (v1.1.1). It also provides +// a seeded 32-bit hash function similar to CityHash32. + +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len) { + uint32_t a = Fetch(s - 4 + (len >> 1)); + uint32_t b = Fetch(s + 4); + uint32_t c = Fetch(s + len - 8); + uint32_t d = Fetch(s + (len >> 1)); + uint32_t e = Fetch(s); + uint32_t f = Fetch(s + len - 4); + uint32_t h = len; + + return fmix(Mur(f, Mur(e, Mur(d, Mur(c, Mur(b, Mur(a, h))))))); +} + +STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len) { + uint32_t b = 0; + uint32_t c = 9; + for (size_t i = 0; i < len; i++) { + signed char v = s[i]; + b = b * c1 + v; + c ^= b; + } + return fmix(Mur(b, Mur(len, c))); +} + +STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len) { + uint32_t a = len, b = len * 5, c = 9, d = b; + a += Fetch(s); + b += Fetch(s + len - 4); + c += Fetch(s + ((len >> 1) & 4)); + return fmix(Mur(c, Mur(b, Mur(a, d)))); +} + +uint32_t Hash32(const char *s, size_t len) { + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) : + Hash32Len13to24(s, len); + } + + // len > 24 + uint32_t h = len, g = c1 * len, f = g; + uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2; + uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2; + uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2; + uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2; + uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2; + h ^= a0; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + h ^= a2; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + g ^= a1; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + g ^= a3; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + f += a4; + f = Rotate(f, 19); + f = f * 5 + 0xe6546b64; + size_t iters = (len - 1) / 20; + do { + uint32_t a0 = Rotate(Fetch(s) * c1, 17) * c2; + uint32_t a1 = Fetch(s + 4); + uint32_t a2 = Rotate(Fetch(s + 8) * c1, 17) * c2; + uint32_t a3 = Rotate(Fetch(s + 12) * c1, 17) * c2; + uint32_t a4 = Fetch(s + 16); + h ^= a0; + h = Rotate(h, 18); + h = h * 5 + 0xe6546b64; + f += a1; + f = Rotate(f, 19); + f = f * c1; + g += a2; + g = Rotate(g, 18); + g = g * 5 + 0xe6546b64; + h ^= a3 + a1; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + g ^= a4; + g = Bswap(g) * 5; + h += a4 * 5; + h = Bswap(h); + f += a0; + PERMUTE3(f, h, g); + s += 20; + } while (--iters != 0); + g = Rotate(g, 11) * c1; + g = Rotate(g, 17) * c1; + f = Rotate(f, 11) * c1; + f = Rotate(f, 17) * c1; + h = Rotate(h + g, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + h = Rotate(h + f, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + return h; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); + else return farmhashmk::Hash32Len0to4(s, len, seed); + } + uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); + return Mur(Hash32(s + 24, len - 24) + seed, h); +} + +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +#undef Bswap +#define Bswap Bswap64 + +STATIC_INLINE uint64_t ShiftMix(uint64_t val) { + return val ^ (val >> 47); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) { + return Hash128to64(Uint128(u, v)); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) { + // Murmur-inspired hashing. + uint64_t a = (u ^ v) * mul; + a ^= (a >> 47); + uint64_t b = (v ^ a) * mul; + b ^= (b >> 47); + b *= mul; + return b; +} + +STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) { + if (len >= 8) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) + k2; + uint64_t b = Fetch(s + len - 8); + uint64_t c = Rotate(b, 37) * mul + a; + uint64_t d = (Rotate(a, 25) + b) * mul; + return HashLen16(c, d, mul); + } + if (len >= 4) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch32(s); + return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul); + } + if (len > 0) { + uint8_t a = s[0]; + uint8_t b = s[len >> 1]; + uint8_t c = s[len - 1]; + uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8); + uint32_t z = len + (static_cast<uint32_t>(c) << 2); + return ShiftMix(y * k2 ^ z * k0) * k2; + } + return k2; +} + +// Return a 16-byte hash for 48 bytes. Quick and dirty. +// Callers do best to use "random-looking" values for a and b. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) { + a += w; + b = Rotate(b + a + z, 21); + uint64_t c = a; + a += x; + a += y; + b += Rotate(a, 44); + return make_pair(a + z, b + c); +} + +// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + const char* s, uint64_t a, uint64_t b) { + return WeakHashLen32WithSeeds(Fetch(s), + Fetch(s + 8), + Fetch(s + 16), + Fetch(s + 24), + a, + b); +} + + + +// A subroutine for CityHash128(). Returns a decent 128-bit hash for strings +// of any length representable in signed long. Based on City and Murmur. +STATIC_INLINE uint128_t CityMurmur(const char *s, size_t len, uint128_t seed) { + uint64_t a = Uint128Low64(seed); + uint64_t b = Uint128High64(seed); + uint64_t c = 0; + uint64_t d = 0; + signed long l = len - 16; + if (l <= 0) { // len <= 16 + a = ShiftMix(a * k1) * k1; + c = b * k1 + HashLen0to16(s, len); + d = ShiftMix(a + (len >= 8 ? Fetch(s) : c)); + } else { // len > 16 + c = HashLen16(Fetch(s + len - 8) + k1, a); + d = HashLen16(b + len, c + Fetch(s + len - 16)); + a += d; + do { + a ^= ShiftMix(Fetch(s) * k1) * k1; + a *= k1; + b ^= a; + c ^= ShiftMix(Fetch(s + 8) * k1) * k1; + c *= k1; + d ^= c; + s += 16; + l -= 16; + } while (l > 0); + } + a = HashLen16(a, c); + b = HashLen16(d, b); + return Uint128(a ^ b, HashLen16(b, a)); +} + +uint128_t CityHash128WithSeed(const char *s, size_t len, uint128_t seed) { + if (len < 128) { + return CityMurmur(s, len, seed); + } + + // We expect len >= 128 to be the common case. Keep 56 bytes of state: + // v, w, x, y, and z. + pair<uint64_t, uint64_t> v, w; + uint64_t x = Uint128Low64(seed); + uint64_t y = Uint128High64(seed); + uint64_t z = len * k1; + v.first = Rotate(y ^ k1, 49) * k1 + Fetch(s); + v.second = Rotate(v.first, 42) * k1 + Fetch(s + 8); + w.first = Rotate(y + z, 35) * k1 + x; + w.second = Rotate(x + Fetch(s + 88), 53) * k1; + + // This is the same inner loop as CityHash64(), manually unrolled. + do { + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; + y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; + x ^= w.second; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * k1; + v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + s += 64; + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; + y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; + x ^= w.second; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * k1; + v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + s += 64; + len -= 128; + } while (LIKELY(len >= 128)); + x += Rotate(v.first + z, 49) * k0; + y = y * k0 + Rotate(w.second, 37); + z = z * k0 + Rotate(w.first, 27); + w.first *= 9; + v.first *= k0; + // If 0 < len < 128, hash up to 4 chunks of 32 bytes each from the end of s. + for (size_t tail_done = 0; tail_done < len; ) { + tail_done += 32; + y = Rotate(x + y, 42) * k0 + v.second; + w.first += Fetch(s + len - tail_done + 16); + x = x * k0 + w.first; + z += w.second + Fetch(s + len - tail_done); + w.second += v.first; + v = WeakHashLen32WithSeeds(s + len - tail_done, v.first + z, v.second); + v.first *= k0; + } + // At this point our 56 bytes of state should contain more than + // enough information for a strong 128-bit hash. We use two + // different 56-byte-to-8-byte hashes to get a 16-byte final result. + x = HashLen16(x, v.first); + y = HashLen16(y + z, w.first); + return Uint128(HashLen16(x + v.second, w.second) + y, + HashLen16(x + w.second, y + v.second)); +} + +STATIC_INLINE uint128_t CityHash128(const char *s, size_t len) { + return len >= 16 ? + CityHash128WithSeed(s + 16, len - 16, + Uint128(Fetch(s), Fetch(s + 8) + k0)) : + CityHash128WithSeed(s, len, Uint128(k0, k1)); +} + +uint128_t Fingerprint128(const char* s, size_t len) { + return CityHash128(s, len); +} +} // namespace farmhashcc diff --git a/contrib/libs/farmhash/farmhashmk.cc b/contrib/libs/farmhash/farmhashmk.cc new file mode 100644 index 0000000000..2580400292 --- /dev/null +++ b/contrib/libs/farmhash/farmhashmk.cc @@ -0,0 +1,120 @@ +#include "common.h" + +namespace { + #include "farmhashnt.cc" +} + +namespace farmhashmk { +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len, uint32_t seed = 0) { + uint32_t a = Fetch(s - 4 + (len >> 1)); + uint32_t b = Fetch(s + 4); + uint32_t c = Fetch(s + len - 8); + uint32_t d = Fetch(s + (len >> 1)); + uint32_t e = Fetch(s); + uint32_t f = Fetch(s + len - 4); + uint32_t h = d * c1 + len + seed; + a = Rotate(a, 12) + f; + h = Mur(c, h) + a; + a = Rotate(a, 3) + c; + h = Mur(e, h) + a; + a = Rotate(a + f, 12) + d; + h = Mur(b ^ seed, h) + a; + return fmix(h); +} + +STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len, uint32_t seed = 0) { + uint32_t b = seed; + uint32_t c = 9; + for (size_t i = 0; i < len; i++) { + signed char v = s[i]; + b = b * c1 + v; + c ^= b; + } + return fmix(Mur(b, Mur(len, c))); +} + +STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len, uint32_t seed = 0) { + uint32_t a = len, b = len * 5, c = 9, d = b + seed; + a += Fetch(s); + b += Fetch(s + len - 4); + c += Fetch(s + ((len >> 1) & 4)); + return fmix(seed ^ Mur(c, Mur(b, Mur(a, d)))); +} + +uint32_t Hash32(const char *s, size_t len) { + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) : + Hash32Len13to24(s, len); + } + + // len > 24 + uint32_t h = len, g = c1 * len, f = g; + uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2; + uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2; + uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2; + uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2; + uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2; + h ^= a0; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + h ^= a2; + h = Rotate(h, 19); + h = h * 5 + 0xe6546b64; + g ^= a1; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + g ^= a3; + g = Rotate(g, 19); + g = g * 5 + 0xe6546b64; + f += a4; + f = Rotate(f, 19) + 113; + size_t iters = (len - 1) / 20; + do { + uint32_t a = Fetch(s); + uint32_t b = Fetch(s + 4); + uint32_t c = Fetch(s + 8); + uint32_t d = Fetch(s + 12); + uint32_t e = Fetch(s + 16); + h += a; + g += b; + f += c; + h = Mur(d, h) + e; + g = Mur(c, g) + a; + f = Mur(b + e * c1, f) + d; + f += g; + g += f; + s += 20; + } while (--iters != 0); + g = Rotate(g, 11) * c1; + g = Rotate(g, 17) * c1; + f = Rotate(f, 11) * c1; + f = Rotate(f, 17) * c1; + h = Rotate(h + g, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + h = Rotate(h + f, 19); + h = h * 5 + 0xe6546b64; + h = Rotate(h, 17) * c1; + return h; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return Hash32Len5to12(s, len, seed); + else return Hash32Len0to4(s, len, seed); + } + uint32_t h = Hash32Len13to24(s, 24, seed ^ len); + return Mur(Hash32(s + 24, len - 24) + seed, h); +} +} // namespace farmhashmk diff --git a/contrib/libs/farmhash/farmhashna.cc b/contrib/libs/farmhash/farmhashna.cc new file mode 100644 index 0000000000..76ef2a3168 --- /dev/null +++ b/contrib/libs/farmhash/farmhashna.cc @@ -0,0 +1,173 @@ +#include "common.h" + +namespace farmhashna { +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +#undef Bswap +#define Bswap Bswap64 + +STATIC_INLINE uint64_t ShiftMix(uint64_t val) { + return val ^ (val >> 47); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) { + return Hash128to64(Uint128(u, v)); +} + +STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) { + // Murmur-inspired hashing. + uint64_t a = (u ^ v) * mul; + a ^= (a >> 47); + uint64_t b = (v ^ a) * mul; + b ^= (b >> 47); + b *= mul; + return b; +} + +STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) { + if (len >= 8) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) + k2; + uint64_t b = Fetch(s + len - 8); + uint64_t c = Rotate(b, 37) * mul + a; + uint64_t d = (Rotate(a, 25) + b) * mul; + return HashLen16(c, d, mul); + } + if (len >= 4) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch32(s); + return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul); + } + if (len > 0) { + uint8_t a = s[0]; + uint8_t b = s[len >> 1]; + uint8_t c = s[len - 1]; + uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8); + uint32_t z = len + (static_cast<uint32_t>(c) << 2); + return ShiftMix(y * k2 ^ z * k0) * k2; + } + return k2; +} + +// This probably works well for 16-byte strings as well, but it may be overkill +// in that case. +STATIC_INLINE uint64_t HashLen17to32(const char *s, size_t len) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) * k1; + uint64_t b = Fetch(s + 8); + uint64_t c = Fetch(s + len - 8) * mul; + uint64_t d = Fetch(s + len - 16) * k2; + return HashLen16(Rotate(a + b, 43) + Rotate(c, 30) + d, + a + Rotate(b + k2, 18) + c, mul); +} + +// Return a 16-byte hash for 48 bytes. Quick and dirty. +// Callers do best to use "random-looking" values for a and b. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) { + a += w; + b = Rotate(b + a + z, 21); + uint64_t c = a; + a += x; + a += y; + b += Rotate(a, 44); + return make_pair(a + z, b + c); +} + +// Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty. +STATIC_INLINE pair<uint64_t, uint64_t> WeakHashLen32WithSeeds( + const char* s, uint64_t a, uint64_t b) { + return WeakHashLen32WithSeeds(Fetch(s), + Fetch(s + 8), + Fetch(s + 16), + Fetch(s + 24), + a, + b); +} + +// Return an 8-byte hash for 33 to 64 bytes. +STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) { + uint64_t mul = k2 + len * 2; + uint64_t a = Fetch(s) * k2; + uint64_t b = Fetch(s + 8); + uint64_t c = Fetch(s + len - 8) * mul; + uint64_t d = Fetch(s + len - 16) * k2; + uint64_t y = Rotate(a + b, 43) + Rotate(c, 30) + d; + uint64_t z = HashLen16(y, a + Rotate(b + k2, 18) + c, mul); + uint64_t e = Fetch(s + 16) * mul; + uint64_t f = Fetch(s + 24); + uint64_t g = (y + Fetch(s + len - 32)) * mul; + uint64_t h = (z + Fetch(s + len - 24)) * mul; + return HashLen16(Rotate(e + f, 43) + Rotate(g, 30) + h, + e + Rotate(f + a, 18) + g, mul); +} + +uint64_t Hash64(const char *s, size_t len) { + const uint64_t seed = 81; + if (len <= 32) { + if (len <= 16) { + return HashLen0to16(s, len); + } else { + return HashLen17to32(s, len); + } + } else if (len <= 64) { + return HashLen33to64(s, len); + } + + // For strings over 64 bytes we loop. Internal state consists of + // 56 bytes: v, w, x, y, and z. + uint64_t x = seed; + uint64_t y = seed * k1 + 113; + uint64_t z = ShiftMix(y * k2 + 113) * k2; + pair<uint64_t, uint64_t> v = make_pair(0, 0); + pair<uint64_t, uint64_t> w = make_pair(0, 0); + x = x * k2 + Fetch(s); + + // Set end so that after the loop we have 1 to 64 bytes left to process. + const char* end = s + ((len - 1) / 64) * 64; + const char* last64 = end + ((len - 1) & 63) - 63; + assert(s + len - 64 == last64); + do { + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; + y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; + x ^= w.second; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * k1; + v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + s += 64; + } while (s != end); + uint64_t mul = k1 + ((z & 0xff) << 1); + // Make s point to the last 64 bytes of input. + s = last64; + w.first += ((len - 1) & 63); + v.first += w.first; + w.first += v.first; + x = Rotate(x + y + v.first + Fetch(s + 8), 37) * mul; + y = Rotate(y + v.second + Fetch(s + 48), 42) * mul; + x ^= w.second * 9; + y += v.first * 9 + Fetch(s + 40); + z = Rotate(z + w.first, 33) * mul; + v = WeakHashLen32WithSeeds(s, v.second * mul, x + w.first); + w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + std::swap(z, x); + return HashLen16(HashLen16(v.first, w.first, mul) + ShiftMix(y) * k0 + z, + HashLen16(v.second, w.second, mul) + x, + mul); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1); + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return Hash64WithSeeds(s, len, k2, seed); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { + return HashLen16(Hash64(s, len) - seed0, seed1); +} +} // namespace farmhashna diff --git a/contrib/libs/farmhash/farmhashnt.cc b/contrib/libs/farmhash/farmhashnt.cc new file mode 100644 index 0000000000..d397ad38fb --- /dev/null +++ b/contrib/libs/farmhash/farmhashnt.cc @@ -0,0 +1,31 @@ +#include "common.h" + +namespace { + #include "farmhashte.cc" +} + +namespace farmhashnt { +#if !can_use_sse41 || !x86_64 + +uint32_t Hash32(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash32(s, len); +} + +#else + +uint32_t Hash32(const char *s, size_t len) { + return static_cast<uint32_t>(farmhashte::Hash64(s, len)); +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + return static_cast<uint32_t>(farmhashte::Hash64WithSeed(s, len, seed)); +} + +#endif +} // namespace farmhashnt diff --git a/contrib/libs/farmhash/farmhashsa.cc b/contrib/libs/farmhash/farmhashsa.cc new file mode 100644 index 0000000000..e6571cbb9a --- /dev/null +++ b/contrib/libs/farmhash/farmhashsa.cc @@ -0,0 +1,216 @@ +#include "common.h" + +namespace { + #include "farmhashsu.cc" +} + +namespace farmhashsa { +#if !can_use_sse42 + +uint32_t Hash32(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash32(s, len); +} + +#else + +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +// Helpers for data-parallel operations (4x 32-bits). +STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); } +STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } +STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); } +STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } +STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); } +STATIC_INLINE __m128i Rotate(__m128i x, int c) { + return Or(_mm_slli_epi32(x, c), + _mm_srli_epi32(x, 32 - c)); +} +STATIC_INLINE __m128i Rot17(__m128i x) { return Rotate(x, 17); } +STATIC_INLINE __m128i Rot19(__m128i x) { return Rotate(x, 19); } +STATIC_INLINE __m128i Shuffle0321(__m128i x) { + return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)); +} + +uint32_t Hash32(const char *s, size_t len) { + const uint32_t seed = 81; + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? + farmhashmk::Hash32Len0to4(s, len) : + farmhashmk::Hash32Len5to12(s, len)) : + farmhashmk::Hash32Len13to24(s, len); + } + + if (len < 40) { + uint32_t a = len, b = seed * c2, c = a + b; + a += Fetch(s + len - 4); + b += Fetch(s + len - 20); + c += Fetch(s + len - 16); + uint32_t d = a; + a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21); + a = Mur(a, Mur(b, Mur(c, d))); + a += Fetch(s + len - 12); + b += Fetch(s + len - 8); + d += a; + a += d; + b = Mur(b, d) * c2; + a = _mm_crc32_u32(a, b + c); + return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b; + } + +#undef Mulc1 +#define Mulc1(x) Mul((x), cc1) + +#undef Mulc2 +#define Mulc2(x) Mul((x), cc2) + +#undef Murk +#define Murk(a, h) \ + Add(k, \ + Mul5( \ + Rot19( \ + Xor( \ + Mulc2( \ + Rot17( \ + Mulc1(a))), \ + (h))))) + + const __m128i cc1 = _mm_set1_epi32(c1); + const __m128i cc2 = _mm_set1_epi32(c2); + __m128i h = _mm_set1_epi32(seed); + __m128i g = _mm_set1_epi32(c1 * seed); + __m128i f = g; + __m128i k = _mm_set1_epi32(0xe6546b64); + if (len < 80) { + __m128i a = Fetch128(s); + __m128i b = Fetch128(s + 16); + __m128i c = Fetch128(s + (len - 15) / 2); + __m128i d = Fetch128(s + len - 32); + __m128i e = Fetch128(s + len - 16); + h = Add(h, a); + g = Add(g, b); + g = Shuffle0321(g); + f = Add(f, c); + __m128i be = Add(b, Mulc1(e)); + h = Add(h, f); + f = Add(f, h); + h = Add(Murk(d, h), e); + k = Xor(k, _mm_shuffle_epi8(g, f)); + g = Add(Xor(c, g), a); + f = Add(Xor(be, f), d); + k = Add(k, be); + k = Add(k, _mm_shuffle_epi8(f, h)); + f = Add(f, g); + g = Add(g, f); + g = Add(_mm_set1_epi32(len), Mulc1(g)); + } else { + // len >= 80 + // The following is loosely modelled after farmhashmk::Hash32. + size_t iters = (len - 1) / 80; + len -= iters * 80; + +#undef Chunk +#define Chunk() do { \ + __m128i a = Fetch128(s); \ + __m128i b = Fetch128(s + 16); \ + __m128i c = Fetch128(s + 32); \ + __m128i d = Fetch128(s + 48); \ + __m128i e = Fetch128(s + 64); \ + h = Add(h, a); \ + g = Add(g, b); \ + g = Shuffle0321(g); \ + f = Add(f, c); \ + __m128i be = Add(b, Mulc1(e)); \ + h = Add(h, f); \ + f = Add(f, h); \ + h = Add(Murk(d, h), e); \ + k = Xor(k, _mm_shuffle_epi8(g, f)); \ + g = Add(Xor(c, g), a); \ + f = Add(Xor(be, f), d); \ + k = Add(k, be); \ + k = Add(k, _mm_shuffle_epi8(f, h)); \ + f = Add(f, g); \ + g = Add(g, f); \ + f = Mulc1(f); \ +} while (0) + + while (iters-- != 0) { + Chunk(); + s += 80; + } + + if (len != 0) { + h = Add(h, _mm_set1_epi32(len)); + s = s + len - 80; + Chunk(); + } + } + + g = Shuffle0321(g); + k = Xor(k, g); + f = Mulc1(f); + k = Mulc2(k); + g = Mulc1(g); + h = Mulc2(h); + k = Add(k, _mm_shuffle_epi8(g, f)); + h = Add(h, f); + f = Add(f, h); + g = Add(g, k); + k = Add(k, g); + k = Xor(k, _mm_shuffle_epi8(f, h)); + __m128i buf[4]; + buf[0] = f; + buf[1] = g; + buf[2] = k; + buf[3] = h; + s = reinterpret_cast<char*>(buf); + uint32_t x = Fetch(s); + uint32_t y = Fetch(s+4); + uint32_t z = Fetch(s+8); + x = _mm_crc32_u32(x, Fetch(s+12)); + y = _mm_crc32_u32(y, Fetch(s+16)); + z = _mm_crc32_u32(z * c1, Fetch(s+20)); + x = _mm_crc32_u32(x, Fetch(s+24)); + y = _mm_crc32_u32(y * c1, Fetch(s+28)); + uint32_t o = y; + z = _mm_crc32_u32(z, Fetch(s+32)); + x = _mm_crc32_u32(x * c1, Fetch(s+36)); + y = _mm_crc32_u32(y, Fetch(s+40)); + z = _mm_crc32_u32(z * c1, Fetch(s+44)); + x = _mm_crc32_u32(x, Fetch(s+48)); + y = _mm_crc32_u32(y * c1, Fetch(s+52)); + z = _mm_crc32_u32(z, Fetch(s+56)); + x = _mm_crc32_u32(x, Fetch(s+60)); + return (o - x + y - z) * c1; +} + +#undef Chunk +#undef Murk +#undef Mulc2 +#undef Mulc1 + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); + else return farmhashmk::Hash32Len0to4(s, len, seed); + } + uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); + return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h); +} + +#endif +} // namespace farmhashsa diff --git a/contrib/libs/farmhash/farmhashsu.cc b/contrib/libs/farmhash/farmhashsu.cc new file mode 100644 index 0000000000..319ac35912 --- /dev/null +++ b/contrib/libs/farmhash/farmhashsu.cc @@ -0,0 +1,226 @@ +#include "common.h" + +namespace { + #include "farmhashmk.cc" +} + +namespace farmhashsu { +#if !can_use_sse42 || !can_use_aesni + +uint32_t Hash32(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash32(s, len); +} + +#else + +#undef Fetch +#define Fetch Fetch32 + +#undef Rotate +#define Rotate Rotate32 + +#undef Bswap +#define Bswap Bswap32 + +// Helpers for data-parallel operations (4x 32-bits). +STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); } +STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } +STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); } +STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } +STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); } +STATIC_INLINE __m128i RotateLeft(__m128i x, int c) { + return Or(_mm_slli_epi32(x, c), + _mm_srli_epi32(x, 32 - c)); +} +STATIC_INLINE __m128i Rol17(__m128i x) { return RotateLeft(x, 17); } +STATIC_INLINE __m128i Rol19(__m128i x) { return RotateLeft(x, 19); } +STATIC_INLINE __m128i Shuffle0321(__m128i x) { + return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)); +} + +uint32_t Hash32(const char *s, size_t len) { + const uint32_t seed = 81; + if (len <= 24) { + return len <= 12 ? + (len <= 4 ? + farmhashmk::Hash32Len0to4(s, len) : + farmhashmk::Hash32Len5to12(s, len)) : + farmhashmk::Hash32Len13to24(s, len); + } + + if (len < 40) { + uint32_t a = len, b = seed * c2, c = a + b; + a += Fetch(s + len - 4); + b += Fetch(s + len - 20); + c += Fetch(s + len - 16); + uint32_t d = a; + a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21); + a = Mur(a, Mur(b, _mm_crc32_u32(c, d))); + a += Fetch(s + len - 12); + b += Fetch(s + len - 8); + d += a; + a += d; + b = Mur(b, d) * c2; + a = _mm_crc32_u32(a, b + c); + return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b; + } + +#undef Mulc1 +#define Mulc1(x) Mul((x), cc1) + +#undef Mulc2 +#define Mulc2(x) Mul((x), cc2) + +#undef Murk +#define Murk(a, h) \ + Add(k, \ + Mul5( \ + Rol19( \ + Xor( \ + Mulc2( \ + Rol17( \ + Mulc1(a))), \ + (h))))) + + const __m128i cc1 = _mm_set1_epi32(c1); + const __m128i cc2 = _mm_set1_epi32(c2); + __m128i h = _mm_set1_epi32(seed); + __m128i g = _mm_set1_epi32(c1 * seed); + __m128i f = g; + __m128i k = _mm_set1_epi32(0xe6546b64); + __m128i q; + if (len < 80) { + __m128i a = Fetch128(s); + __m128i b = Fetch128(s + 16); + __m128i c = Fetch128(s + (len - 15) / 2); + __m128i d = Fetch128(s + len - 32); + __m128i e = Fetch128(s + len - 16); + h = Add(h, a); + g = Add(g, b); + q = g; + g = Shuffle0321(g); + f = Add(f, c); + __m128i be = Add(b, Mulc1(e)); + h = Add(h, f); + f = Add(f, h); + h = Add(Murk(d, h), e); + k = Xor(k, _mm_shuffle_epi8(g, f)); + g = Add(Xor(c, g), a); + f = Add(Xor(be, f), d); + k = Add(k, be); + k = Add(k, _mm_shuffle_epi8(f, h)); + f = Add(f, g); + g = Add(g, f); + g = Add(_mm_set1_epi32(len), Mulc1(g)); + } else { + // len >= 80 + // The following is loosely modelled after farmhashmk::Hash32. + size_t iters = (len - 1) / 80; + len -= iters * 80; + +#undef Chunk +#define Chunk() do { \ + __m128i a = Fetch128(s); \ + __m128i b = Fetch128(s + 16); \ + __m128i c = Fetch128(s + 32); \ + __m128i d = Fetch128(s + 48); \ + __m128i e = Fetch128(s + 64); \ + h = Add(h, a); \ + g = Add(g, b); \ + g = Shuffle0321(g); \ + f = Add(f, c); \ + __m128i be = Add(b, Mulc1(e)); \ + h = Add(h, f); \ + f = Add(f, h); \ + h = Add(h, d); \ + q = Add(q, e); \ + h = Rol17(h); \ + h = Mulc1(h); \ + k = Xor(k, _mm_shuffle_epi8(g, f)); \ + g = Add(Xor(c, g), a); \ + f = Add(Xor(be, f), d); \ + std::swap(f, q); \ + q = _mm_aesimc_si128(q); \ + k = Add(k, be); \ + k = Add(k, _mm_shuffle_epi8(f, h)); \ + f = Add(f, g); \ + g = Add(g, f); \ + f = Mulc1(f); \ +} while (0) + + q = g; + while (iters-- != 0) { + Chunk(); + s += 80; + } + + if (len != 0) { + h = Add(h, _mm_set1_epi32(len)); + s = s + len - 80; + Chunk(); + } + } + + g = Shuffle0321(g); + k = Xor(k, g); + k = Xor(k, q); + h = Xor(h, q); + f = Mulc1(f); + k = Mulc2(k); + g = Mulc1(g); + h = Mulc2(h); + k = Add(k, _mm_shuffle_epi8(g, f)); + h = Add(h, f); + f = Add(f, h); + g = Add(g, k); + k = Add(k, g); + k = Xor(k, _mm_shuffle_epi8(f, h)); + __m128i buf[4]; + buf[0] = f; + buf[1] = g; + buf[2] = k; + buf[3] = h; + s = reinterpret_cast<char*>(buf); + uint32_t x = Fetch(s); + uint32_t y = Fetch(s+4); + uint32_t z = Fetch(s+8); + x = _mm_crc32_u32(x, Fetch(s+12)); + y = _mm_crc32_u32(y, Fetch(s+16)); + z = _mm_crc32_u32(z * c1, Fetch(s+20)); + x = _mm_crc32_u32(x, Fetch(s+24)); + y = _mm_crc32_u32(y * c1, Fetch(s+28)); + uint32_t o = y; + z = _mm_crc32_u32(z, Fetch(s+32)); + x = _mm_crc32_u32(x * c1, Fetch(s+36)); + y = _mm_crc32_u32(y, Fetch(s+40)); + z = _mm_crc32_u32(z * c1, Fetch(s+44)); + x = _mm_crc32_u32(x, Fetch(s+48)); + y = _mm_crc32_u32(y * c1, Fetch(s+52)); + z = _mm_crc32_u32(z, Fetch(s+56)); + x = _mm_crc32_u32(x, Fetch(s+60)); + return (o - x + y - z) * c1; +} + +#undef Chunk +#undef Murk +#undef Mulc2 +#undef Mulc1 + +uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { + if (len <= 24) { + if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); + else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); + else return farmhashmk::Hash32Len0to4(s, len, seed); + } + uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); + return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h); +} + +#endif +} // namespace farmhashsu diff --git a/contrib/libs/farmhash/farmhashte.cc b/contrib/libs/farmhash/farmhashte.cc new file mode 100644 index 0000000000..709ba49898 --- /dev/null +++ b/contrib/libs/farmhash/farmhashte.cc @@ -0,0 +1,238 @@ +#include "common.h" + +namespace { + #include "farmhashxo.cc" +} + +namespace farmhashte { +#if !can_use_sse41 || !x86_64 + +uint64_t Hash64(const char *s, size_t len) { + FARMHASH_DIE_IF_MISCONFIGURED; + return s == NULL ? 0 : len; +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed + Hash64(s, len); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, + uint64_t seed0, uint64_t seed1) { + FARMHASH_DIE_IF_MISCONFIGURED; + return seed0 + seed1 + Hash64(s, len); +} + +#else + +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +#undef Bswap +#define Bswap Bswap64 + +// Helpers for data-parallel operations (1x 128 bits or 2x 64 or 4x 32). +STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi64(x, y); } +STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } +STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } +STATIC_INLINE __m128i Shuf(__m128i x, __m128i y) { return _mm_shuffle_epi8(y, x); } + +// Requires n >= 256. Requires SSE4.1. Should be slightly faster if the +// compiler uses AVX instructions (e.g., use the -mavx flag with GCC). +STATIC_INLINE uint64_t Hash64Long(const char* s, size_t n, + uint64_t seed0, uint64_t seed1) { + const __m128i kShuf = + _mm_set_epi8(4, 11, 10, 5, 8, 15, 6, 9, 12, 2, 14, 13, 0, 7, 3, 1); + const __m128i kMult = + _mm_set_epi8(0xbd, 0xd6, 0x33, 0x39, 0x45, 0x54, 0xfa, 0x03, + 0x34, 0x3e, 0x33, 0xed, 0xcc, 0x9e, 0x2d, 0x51); + uint64_t seed2 = (seed0 + 113) * (seed1 + 9); + uint64_t seed3 = (Rotate(seed0, 23) + 27) * (Rotate(seed1, 30) + 111); + __m128i d0 = _mm_cvtsi64_si128(seed0); + __m128i d1 = _mm_cvtsi64_si128(seed1); + __m128i d2 = Shuf(kShuf, d0); + __m128i d3 = Shuf(kShuf, d1); + __m128i d4 = Xor(d0, d1); + __m128i d5 = Xor(d1, d2); + __m128i d6 = Xor(d2, d4); + __m128i d7 = _mm_set1_epi32(seed2 >> 32); + __m128i d8 = Mul(kMult, d2); + __m128i d9 = _mm_set1_epi32(seed3 >> 32); + __m128i d10 = _mm_set1_epi32(seed3); + __m128i d11 = Add(d2, _mm_set1_epi32(seed2)); + const char* end = s + (n & ~static_cast<size_t>(255)); + do { + __m128i z; + z = Fetch128(s); + d0 = Add(d0, z); + d1 = Shuf(kShuf, d1); + d2 = Xor(d2, d0); + d4 = Xor(d4, z); + d4 = Xor(d4, d1); + std::swap(d0, d6); + z = Fetch128(s + 16); + d5 = Add(d5, z); + d6 = Shuf(kShuf, d6); + d8 = Shuf(kShuf, d8); + d7 = Xor(d7, d5); + d0 = Xor(d0, z); + d0 = Xor(d0, d6); + std::swap(d5, d11); + z = Fetch128(s + 32); + d1 = Add(d1, z); + d2 = Shuf(kShuf, d2); + d4 = Shuf(kShuf, d4); + d5 = Xor(d5, z); + d5 = Xor(d5, d2); + std::swap(d10, d4); + z = Fetch128(s + 48); + d6 = Add(d6, z); + d7 = Shuf(kShuf, d7); + d0 = Shuf(kShuf, d0); + d8 = Xor(d8, d6); + d1 = Xor(d1, z); + d1 = Add(d1, d7); + z = Fetch128(s + 64); + d2 = Add(d2, z); + d5 = Shuf(kShuf, d5); + d4 = Add(d4, d2); + d6 = Xor(d6, z); + d6 = Xor(d6, d11); + std::swap(d8, d2); + z = Fetch128(s + 80); + d7 = Xor(d7, z); + d8 = Shuf(kShuf, d8); + d1 = Shuf(kShuf, d1); + d0 = Add(d0, d7); + d2 = Add(d2, z); + d2 = Add(d2, d8); + std::swap(d1, d7); + z = Fetch128(s + 96); + d4 = Shuf(kShuf, d4); + d6 = Shuf(kShuf, d6); + d8 = Mul(kMult, d8); + d5 = Xor(d5, d11); + d7 = Xor(d7, z); + d7 = Add(d7, d4); + std::swap(d6, d0); + z = Fetch128(s + 112); + d8 = Add(d8, z); + d0 = Shuf(kShuf, d0); + d2 = Shuf(kShuf, d2); + d1 = Xor(d1, d8); + d10 = Xor(d10, z); + d10 = Xor(d10, d0); + std::swap(d11, d5); + z = Fetch128(s + 128); + d4 = Add(d4, z); + d5 = Shuf(kShuf, d5); + d7 = Shuf(kShuf, d7); + d6 = Add(d6, d4); + d8 = Xor(d8, z); + d8 = Xor(d8, d5); + std::swap(d4, d10); + z = Fetch128(s + 144); + d0 = Add(d0, z); + d1 = Shuf(kShuf, d1); + d2 = Add(d2, d0); + d4 = Xor(d4, z); + d4 = Xor(d4, d1); + z = Fetch128(s + 160); + d5 = Add(d5, z); + d6 = Shuf(kShuf, d6); + d8 = Shuf(kShuf, d8); + d7 = Xor(d7, d5); + d0 = Xor(d0, z); + d0 = Xor(d0, d6); + std::swap(d2, d8); + z = Fetch128(s + 176); + d1 = Add(d1, z); + d2 = Shuf(kShuf, d2); + d4 = Shuf(kShuf, d4); + d5 = Mul(kMult, d5); + d5 = Xor(d5, z); + d5 = Xor(d5, d2); + std::swap(d7, d1); + z = Fetch128(s + 192); + d6 = Add(d6, z); + d7 = Shuf(kShuf, d7); + d0 = Shuf(kShuf, d0); + d8 = Add(d8, d6); + d1 = Xor(d1, z); + d1 = Xor(d1, d7); + std::swap(d0, d6); + z = Fetch128(s + 208); + d2 = Add(d2, z); + d5 = Shuf(kShuf, d5); + d4 = Xor(d4, d2); + d6 = Xor(d6, z); + d6 = Xor(d6, d9); + std::swap(d5, d11); + z = Fetch128(s + 224); + d7 = Add(d7, z); + d8 = Shuf(kShuf, d8); + d1 = Shuf(kShuf, d1); + d0 = Xor(d0, d7); + d2 = Xor(d2, z); + d2 = Xor(d2, d8); + std::swap(d10, d4); + z = Fetch128(s + 240); + d3 = Add(d3, z); + d4 = Shuf(kShuf, d4); + d6 = Shuf(kShuf, d6); + d7 = Mul(kMult, d7); + d5 = Add(d5, d3); + d7 = Xor(d7, z); + d7 = Xor(d7, d4); + std::swap(d3, d9); + s += 256; + } while (s != end); + d6 = Add(Mul(kMult, d6), _mm_cvtsi64_si128(n)); + if (n % 256 != 0) { + d7 = Add(_mm_shuffle_epi32(d8, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)), d7); + d8 = Add(Mul(kMult, d8), _mm_cvtsi64_si128(farmhashxo::Hash64(s, n % 256))); + } + __m128i t[8]; + d0 = Mul(kMult, Shuf(kShuf, Mul(kMult, d0))); + d3 = Mul(kMult, Shuf(kShuf, Mul(kMult, d3))); + d9 = Mul(kMult, Shuf(kShuf, Mul(kMult, d9))); + d1 = Mul(kMult, Shuf(kShuf, Mul(kMult, d1))); + d0 = Add(d11, d0); + d3 = Xor(d7, d3); + d9 = Add(d8, d9); + d1 = Add(d10, d1); + d4 = Add(d3, d4); + d5 = Add(d9, d5); + d6 = Xor(d1, d6); + d2 = Add(d0, d2); + t[0] = d0; + t[1] = d3; + t[2] = d9; + t[3] = d1; + t[4] = d4; + t[5] = d5; + t[6] = d6; + t[7] = d2; + return farmhashxo::Hash64(reinterpret_cast<const char*>(t), sizeof(t)); +} + +uint64_t Hash64(const char *s, size_t len) { + // Empirically, farmhashxo seems faster until length 512. + return len >= 512 ? Hash64Long(s, len, k2, k1) : farmhashxo::Hash64(s, len); +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return len >= 512 ? Hash64Long(s, len, k1, seed) : + farmhashxo::Hash64WithSeed(s, len, seed); +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { + return len >= 512 ? Hash64Long(s, len, seed0, seed1) : + farmhashxo::Hash64WithSeeds(s, len, seed0, seed1); +} + +#endif +} // namespace farmhashte diff --git a/contrib/libs/farmhash/farmhashuo.cc b/contrib/libs/farmhash/farmhashuo.cc new file mode 100644 index 0000000000..66e84e44d2 --- /dev/null +++ b/contrib/libs/farmhash/farmhashuo.cc @@ -0,0 +1,121 @@ +#include "common.h" + +namespace { + #include "farmhashna.cc" +} + +namespace farmhashuo { +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +STATIC_INLINE uint64_t H(uint64_t x, uint64_t y, uint64_t mul, int r) { + uint64_t a = (x ^ y) * mul; + a ^= (a >> 47); + uint64_t b = (y ^ a) * mul; + return Rotate(b, r) * mul; +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, + uint64_t seed0, uint64_t seed1) { + if (len <= 64) { + return farmhashna::Hash64WithSeeds(s, len, seed0, seed1); + } + + // For strings over 64 bytes we loop. Internal state consists of + // 64 bytes: u, v, w, x, y, and z. + uint64_t x = seed0; + uint64_t y = seed1 * k2 + 113; + uint64_t z = farmhashna::ShiftMix(y * k2) * k2; + pair<uint64_t, uint64_t> v = make_pair(seed0, seed1); + pair<uint64_t, uint64_t> w = make_pair(0, 0); + uint64_t u = x - z; + x *= k2; + uint64_t mul = k2 + (u & 0x82); + + // Set end so that after the loop we have 1 to 64 bytes left to process. + const char* end = s + ((len - 1) / 64) * 64; + const char* last64 = end + ((len - 1) & 63) - 63; + assert(s + len - 64 == last64); + do { + uint64_t a0 = Fetch(s); + uint64_t a1 = Fetch(s + 8); + uint64_t a2 = Fetch(s + 16); + uint64_t a3 = Fetch(s + 24); + uint64_t a4 = Fetch(s + 32); + uint64_t a5 = Fetch(s + 40); + uint64_t a6 = Fetch(s + 48); + uint64_t a7 = Fetch(s + 56); + x += a0 + a1; + y += a2; + z += a3; + v.first += a4; + v.second += a5 + a1; + w.first += a6; + w.second += a7; + + x = Rotate(x, 26); + x *= 9; + y = Rotate(y, 29); + z *= mul; + v.first = Rotate(v.first, 33); + v.second = Rotate(v.second, 30); + w.first ^= x; + w.first *= 9; + z = Rotate(z, 32); + z += w.second; + w.second += z; + z *= 9; + std::swap(u, y); + + z += a0 + a6; + v.first += a2; + v.second += a3; + w.first += a4; + w.second += a5 + a6; + x += a1; + y += a7; + + y += v.first; + v.first += x - y; + v.second += w.first; + w.first += v.second; + w.second += x - y; + x += w.second; + w.second = Rotate(w.second, 34); + std::swap(u, z); + s += 64; + } while (s != end); + // Make s point to the last 64 bytes of input. + s = last64; + u *= 9; + v.second = Rotate(v.second, 28); + v.first = Rotate(v.first, 20); + w.first += ((len - 1) & 63); + u += y; + y += u; + x = Rotate(y - x + v.first + Fetch(s + 8), 37) * mul; + y = Rotate(y ^ v.second ^ Fetch(s + 48), 42) * mul; + x ^= w.second * 9; + y += v.first + Fetch(s + 40); + z = Rotate(z + w.first, 33) * mul; + v = farmhashna::WeakHashLen32WithSeeds(s, v.second * mul, x + w.first); + w = farmhashna::WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); + return H(farmhashna::HashLen16(v.first + x, w.first ^ y, mul) + z - u, + H(v.second + y, w.second + z, k2, 30) ^ x, + k2, + 31); +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return len <= 64 ? farmhashna::Hash64WithSeed(s, len, seed) : + Hash64WithSeeds(s, len, 0, seed); +} + +uint64_t Hash64(const char *s, size_t len) { + return len <= 64 ? farmhashna::Hash64(s, len) : + Hash64WithSeeds(s, len, 81, 0); +} +} // namespace farmhashuo diff --git a/contrib/libs/farmhash/farmhashxo.cc b/contrib/libs/farmhash/farmhashxo.cc new file mode 100644 index 0000000000..e9bf1fd797 --- /dev/null +++ b/contrib/libs/farmhash/farmhashxo.cc @@ -0,0 +1,71 @@ +#include "common.h" + +namespace { + #include "farmhashuo.cc" +} + +namespace farmhashxo { +#undef Fetch +#define Fetch Fetch64 + +#undef Rotate +#define Rotate Rotate64 + +STATIC_INLINE uint64_t H32(const char *s, size_t len, uint64_t mul, + uint64_t seed0 = 0, uint64_t seed1 = 0) { + uint64_t a = Fetch(s) * k1; + uint64_t b = Fetch(s + 8); + uint64_t c = Fetch(s + len - 8) * mul; + uint64_t d = Fetch(s + len - 16) * k2; + uint64_t u = Rotate(a + b, 43) + Rotate(c, 30) + d + seed0; + uint64_t v = a + Rotate(b + k2, 18) + c + seed1; + a = farmhashna::ShiftMix((u ^ v) * mul); + b = farmhashna::ShiftMix((v ^ a) * mul); + return b; +} + +// Return an 8-byte hash for 33 to 64 bytes. +STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) { + uint64_t mul0 = k2 - 30; + uint64_t mul1 = k2 - 30 + 2 * len; + uint64_t h0 = H32(s, 32, mul0); + uint64_t h1 = H32(s + len - 32, 32, mul1); + return ((h1 * mul1) + h0) * mul1; +} + +// Return an 8-byte hash for 65 to 96 bytes. +STATIC_INLINE uint64_t HashLen65to96(const char *s, size_t len) { + uint64_t mul0 = k2 - 114; + uint64_t mul1 = k2 - 114 + 2 * len; + uint64_t h0 = H32(s, 32, mul0); + uint64_t h1 = H32(s + 32, 32, mul1); + uint64_t h2 = H32(s + len - 32, 32, mul1, h0, h1); + return (h2 * 9 + (h0 >> 17) + (h1 >> 21)) * mul1; +} + +uint64_t Hash64(const char *s, size_t len) { + if (len <= 32) { + if (len <= 16) { + return farmhashna::HashLen0to16(s, len); + } else { + return farmhashna::HashLen17to32(s, len); + } + } else if (len <= 64) { + return HashLen33to64(s, len); + } else if (len <= 96) { + return HashLen65to96(s, len); + } else if (len <= 256) { + return farmhashna::Hash64(s, len); + } else { + return farmhashuo::Hash64(s, len); + } +} + +uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { + return farmhashuo::Hash64WithSeeds(s, len, seed0, seed1); +} + +uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { + return farmhashuo::Hash64WithSeed(s, len, seed); +} +} // namespace farmhashxo diff --git a/contrib/libs/farmhash/include/farmhash.h b/contrib/libs/farmhash/include/farmhash.h new file mode 100644 index 0000000000..def63097e1 --- /dev/null +++ b/contrib/libs/farmhash/include/farmhash.h @@ -0,0 +1 @@ +#include "../farmhash.h" /* inclink generated by thegeorg@ */ diff --git a/contrib/libs/farmhash/split.py b/contrib/libs/farmhash/split.py new file mode 100755 index 0000000000..2939c75651 --- /dev/null +++ b/contrib/libs/farmhash/split.py @@ -0,0 +1,74 @@ +#!/usr/bin/env python + + +END_PREFIX = '} // namespace ' +TEST_PREFIX = '#if FARMHASHSELFTEST' + + +def main(): + with open('farmhash.cc', 'rb') as input_file: + lines = input_file.readlines() + + namespace_out = None + + prev_name = None + + output = open('common.h', 'wb') + output.write('#pragma once\n\n') + + def write_common(): + output.write('#include "common.h"\n\n') + + def write_include(include): + if include: + output.write('namespace {\n') + output.write(' ' + '#include "{}"\n'.format(include)) + output.write('}\n\n') + + write_test = False + + for line in lines: + + if line.startswith(TEST_PREFIX): + write_test = True + output.close() + output = open('test.cc', 'wb') + write_common() + write_include('farmhash_iface.h') + + if write_test: + output.write(line) + continue + + elif line.startswith('namespace '): + namespace = line.split(' ')[1] + + if namespace.startswith('farmhash'): + filename = namespace + '.cc' + + output.close() + output = open(filename, 'wb') + write_common() + write_include(prev_name) + + output.write(line) + prev_name = filename + + else: + if prev_name is not None: + output.close() + output = open('farmhash_iface.cc', 'wb') + write_common() + write_include(prev_name) + prev_name = None + + output.write(line) + + else: + output.write(line) + + output.close() + + +if __name__ == '__main__': + main() diff --git a/contrib/libs/farmhash/test.cc b/contrib/libs/farmhash/test.cc new file mode 100644 index 0000000000..08d191ae7c --- /dev/null +++ b/contrib/libs/farmhash/test.cc @@ -0,0 +1,9872 @@ +#include <library/cpp/testing/unittest/registar.h> + +#include "common.h" + +#include "farmhash_iface.h" + +#if FARMHASHSELFTEST + +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + /* if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); */ + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashccTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +1039179260u, 1690343979u, 1018511555u, 2464489001u, +20368522u, 2663783964u, 175201532u, 1619210592u, +4081014168u, +2576519988u, +3285042206u, 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+ } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashcc::Hash32WithSeed(farm_hash_data, len++, SEED)); IsAlive(farmhashcc::Hash32(farm_hash_data, len++)); { uint128_t u = farmhashcc::Fingerprint128(farm_hash_data, len++); uint64_t h = Uint128Low64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); h = Uint128High64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +Check(farmhashcc::Hash32WithSeed(farm_hash_data + offset, len, SEED)); +Check(farmhashcc::Hash32(farm_hash_data + offset, len)); +{ uint128_t u = farmhashcc::Fingerprint128(farm_hash_data + offset, len); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); } +{ uint128_t u = farmhashcc::CityHash128WithSeed(farm_hash_data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashccTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashcc::Hash32WithSeed(farm_hash_data + offset, len, SEED) << "u," << endl; +cout << farmhashcc::Hash32(farm_hash_data + offset, len) << "u," << endl; +{ uint128_t u = farmhashcc::Fingerprint128(farm_hash_data + offset, len); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint128_t u = farmhashcc::CityHash128WithSeed(farm_hash_data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashccTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashccTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashccTest::Dump(0, i); + } + farmhashccTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashmkTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +4081014168u, +2576519988u, +2212771159u, +1112731063u, +1020067935u, +3955445564u, +1451961420u, +653440099u, +31917516u, +2957164615u, +2590087362u, +3879448744u, +176305566u, +2447367541u, +1359016305u, +3363804638u, +1117290165u, +1062549743u, +2437877004u, +1894455839u, +673206794u, +3486923651u, +3269862919u, +2303349487u, +1380660650u, +595525107u, +1525325287u, +2025609358u, +176408838u, +1592885012u, +864896482u, +2101378090u, +3489229104u, +2118965695u, +581644891u, +2718789079u, +631613207u, +4228658372u, +3867875546u, +3531368319u, +3804516756u, +3317755099u, +1619744564u, +2884717286u, +1088213445u, +2667691076u, +3727873235u, +2330406762u, +3616470388u, +967660719u, +4148162586u, +315219121u, +673084328u, +3047602355u, +1598963653u, +1267826661u, +2117362589u, +2861192253u, +1823625377u, +1380350078u, +1641748342u, +1176094482u, +269384321u, 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+2895834146u, +3640845375u, +3750293073u, +548997850u, +4207814196u, +4183030708u, +2462810989u, +3929965401u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashmk::Hash32WithSeed(farm_hash_data, len++, SEED)); IsAlive(farmhashmk::Hash32(farm_hash_data, len++)); IsAlive(farmhashmk::Hash32(farm_hash_data, len++)); len -= 3; return alive > 0; } +Check(farmhashmk::Hash32WithSeed(farm_hash_data + offset, len, SEED)); +Check(farmhashmk::Hash32(farm_hash_data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashmkTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashmk::Hash32WithSeed(farm_hash_data + offset, len, SEED) << "u," << endl; +cout << farmhashmk::Hash32(farm_hash_data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashmkTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashmkTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashmkTest::Dump(0, i); + } + farmhashmkTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashnaTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +1140953930u, 861465670u, +3277735313u, 2681724312u, +2598464059u, 797982799u, +890626835u, 800175912u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +3283896453u, 1867689945u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +1110588164u, 4186314283u, +161451183u, 3943596029u, +4019337850u, 452431531u, +283198166u, 2741341286u, +3379021470u, 2557197665u, +299850021u, 2532580744u, +452473466u, 1706958772u, 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+670591796u, 768977505u, +2412057331u, 3647886687u, +3110327607u, 1072658422u, +379861934u, 1557579480u, +4124127129u, 2271365865u, +3880613089u, 739218494u, +547346027u, 388559045u, +3147335977u, 176230425u, +3094853730u, 2554321205u, +1495176194u, 4093461535u, +3521297827u, 4108148413u, +1913727929u, 1177947623u, +1911655402u, 1053371241u, +3265708874u, 1266515850u, +1045540427u, 3194420196u, +3717104621u, 1144474110u, +1464392345u, 52070157u, +4144237690u, 3350490823u, +4166253320u, 2747410691u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashna::Hash64WithSeeds(farm_hash_data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64WithSeed(farm_hash_data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64(farm_hash_data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashna::Hash64WithSeeds(farm_hash_data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashna::Hash64WithSeed(farm_hash_data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashna::Hash64(farm_hash_data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashnaTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashna::Hash64WithSeeds(farm_hash_data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashna::Hash64WithSeed(farm_hash_data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashna::Hash64(farm_hash_data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashnaTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashnaTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashnaTest::Dump(0, i); + } + farmhashnaTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashntTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +2681724312u, +797982799u, +921001710u, +2134990486u, +2244477846u, +2992121793u, +3943596029u, +452431531u, +2557197665u, +2532580744u, +3099673830u, 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0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashnt::Hash32WithSeed(farm_hash_data, len++, SEED)); IsAlive(farmhashnt::Hash32(farm_hash_data, len++)); IsAlive(farmhashnt::Hash32(farm_hash_data, len++)); len -= 3; return alive > 0; } +Check(farmhashnt::Hash32WithSeed(farm_hash_data + offset, len, SEED)); +Check(farmhashnt::Hash32(farm_hash_data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashntTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashnt::Hash32WithSeed(farm_hash_data + offset, len, SEED) << "u," << endl; +cout << farmhashnt::Hash32(farm_hash_data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashntTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashntTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashntTest::Dump(0, i); + } + farmhashntTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashsaTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +4081014168u, +2576519988u, +2212771159u, +1112731063u, +1020067935u, +3955445564u, +1451961420u, +653440099u, +31917516u, +2957164615u, +2590087362u, +3879448744u, +176305566u, +2447367541u, +1359016305u, +3363804638u, +1117290165u, +1062549743u, +2437877004u, +1894455839u, +673206794u, +3486923651u, +3269862919u, +2303349487u, +1380660650u, +595525107u, +1525325287u, +2025609358u, 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+2771079610u, +476672419u, +2119050359u, +2918326659u, +2245402721u, +2692910474u, +2374383269u, +342400227u, +2961437795u, +3899230368u, +337787132u, +3664444935u, +1269451153u, +2971526729u, +1486511182u, +791070133u, +2570319890u, +3482497490u, +2134230518u, +4273391202u, +1825511330u, +3947753714u, +1389755724u, +3995075516u, +2081052615u, +3626343470u, +4213603435u, +2137917278u, +2898987303u, +3059215715u, +3383237881u, +3003674434u, +409174425u, +1911915604u, +2087728055u, +2942005882u, +3386522440u, +714936074u, +261924004u, +3268784033u, +1141188757u, +2413217552u, +1515163433u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashsa::Hash32WithSeed(farm_hash_data, len++, SEED)); IsAlive(farmhashsa::Hash32(farm_hash_data, len++)); IsAlive(farmhashsa::Hash32(farm_hash_data, len++)); len -= 3; return alive > 0; } +Check(farmhashsa::Hash32WithSeed(farm_hash_data + offset, len, SEED)); +Check(farmhashsa::Hash32(farm_hash_data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashsaTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashsa::Hash32WithSeed(farm_hash_data + offset, len, SEED) << "u," << endl; +cout << farmhashsa::Hash32(farm_hash_data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashsaTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashsaTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashsaTest::Dump(0, i); + } + farmhashsaTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashsuTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +4223616069u, +3696677242u, +4081014168u, +2576519988u, +2212771159u, +1112731063u, +1020067935u, +3955445564u, +1451961420u, +653440099u, +31917516u, +2957164615u, +2590087362u, +3879448744u, +176305566u, +2447367541u, +1359016305u, +3363804638u, +1117290165u, +1062549743u, +2437877004u, +1894455839u, +673206794u, +3486923651u, +3269862919u, +2303349487u, +1380660650u, +595525107u, +1525325287u, +2025609358u, 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+1366883260u, +1912910955u, +510192669u, +1851315039u, +3574241274u, +3220062924u, +2821142039u, +1317082195u, +2274293302u, +1839219569u, +126586168u, +3989293643u, +2680178207u, +347056948u, +799681430u, +2864517481u, +3180404853u, +213140045u, +1956305184u, +1474675286u, +3085723423u, +2841859626u, +308421914u, +3670309263u, +1765052231u, +245459238u, +113434331u, +4079521092u, +2115235526u, +2943408816u, +1055476938u, +1506442339u, +2291296392u, +3267864332u, +1282145528u, +3700108015u, +1932843667u, +2677701670u, +6041177u, +3889648557u, +1461025478u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; IsAlive(farmhashsu::Hash32WithSeed(farm_hash_data, len++, SEED)); IsAlive(farmhashsu::Hash32(farm_hash_data, len++)); IsAlive(farmhashsu::Hash32(farm_hash_data, len++)); len -= 3; return alive > 0; } +Check(farmhashsu::Hash32WithSeed(farm_hash_data + offset, len, SEED)); +Check(farmhashsu::Hash32(farm_hash_data + offset, len)); + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashsuTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +cout << farmhashsu::Hash32WithSeed(farm_hash_data + offset, len, SEED) << "u," << endl; +cout << farmhashsu::Hash32(farm_hash_data + offset, len) << "u," << endl; +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashsuTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashsuTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashsuTest::Dump(0, i); + } + farmhashsuTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashteTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +1140953930u, 861465670u, +3277735313u, 2681724312u, +2598464059u, 797982799u, +890626835u, 800175912u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +3283896453u, 1867689945u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +1110588164u, 4186314283u, +161451183u, 3943596029u, +4019337850u, 452431531u, +283198166u, 2741341286u, +3379021470u, 2557197665u, +299850021u, 2532580744u, +452473466u, 1706958772u, 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+3123390177u, 106212622u, +490570565u, 1684884205u, +793892547u, 1927268995u, +2344148164u, 2251978818u, +437424236u, 2774023200u, +2674940754u, 3788056262u, +2597882666u, 3678660147u, +3797434193u, 3838215866u, +279687080u, 2656772270u, +2190204787u, 1997584981u, +3384401882u, 3160208845u, +3629379425u, 2668998785u, +1050036757u, 2954162084u, +917091826u, 1744374041u, +1454282570u, 845687881u, +2997173625u, 776018378u, +1137560602u, 1938378389u, +1748082354u, 2066910012u, +2677675207u, 918315064u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashte::Hash64WithSeeds(farm_hash_data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64WithSeed(farm_hash_data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64(farm_hash_data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashte::Hash64WithSeeds(farm_hash_data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashte::Hash64WithSeed(farm_hash_data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashte::Hash64(farm_hash_data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashteTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashte::Hash64WithSeeds(farm_hash_data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashte::Hash64WithSeed(farm_hash_data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashte::Hash64(farm_hash_data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashteTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashteTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashteTest::Dump(0, i); + } + farmhashteTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashuoTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +3277735313u, 2681724312u, +2598464059u, 797982799u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +2914424215u, 2244477846u, +255297188u, 2992121793u, 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+1490719640u, 3356513470u, +2908490783u, 251085588u, +830410677u, 3172220325u, +3897208579u, 1940535730u, +151909546u, 2384458112u, +}; + +// Return false only if offset is -1 and a spot check of 3 hashes all yield 0. +bool Test(int offset, int len = 0) { +#undef Check +#undef IsAlive + +#define Check(x) do { \ + const uint32_t actual = (x), e = expected[index++]; \ + bool ok = actual == e; \ + if (!ok) { \ + cerr << "expected " << hex << e << " but got " << actual << endl; \ + ++errors; \ + } \ + assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashuo::Hash64WithSeed(farm_hash_data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(farm_hash_data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(farm_hash_data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashuo::Hash64WithSeed(farm_hash_data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashuo::Hash64(farm_hash_data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashuoTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashuo::Hash64WithSeed(farm_hash_data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashuo::Hash64(farm_hash_data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashuoTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashuoTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashuoTest::Dump(0, i); + } + farmhashuoTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif +#ifndef FARMHASH_SELF_TEST_GUARD +#define FARMHASH_SELF_TEST_GUARD +#include <cstdio> +#include <iostream> +#include <string.h> + +using std::cout; +using std::cerr; +using std::endl; +using std::hex; + +static const uint64_t kSeed0 = 1234567; +static const uint64_t kSeed1 = k0; +static const int kDataSize = 1 << 20; +static const int kTestSize = 300; +#define kSeed128 Uint128(kSeed0, kSeed1) + +static char farm_hash_data[kDataSize]; + +static int completed_self_tests = 0; +static int errors = 0; + +// Initialize farm_hash_data to pseudorandom values. +void Setup() { + if (completed_self_tests == 0) { + uint64_t a = 9; + uint64_t b = 777; + for (int i = 0; i < kDataSize; i++) { + a += b; + b += a; + a = (a ^ (a >> 41)) * k0; + b = (b ^ (b >> 41)) * k0 + i; + uint8_t u = b >> 37; + memcpy(farm_hash_data + i, &u, 1); // uint8_t -> char + } + } +} + +int NoteErrors() { +#define NUM_SELF_TESTS 9 + if (++completed_self_tests == NUM_SELF_TESTS) + std::exit(errors > 0); + return errors; +} + +template <typename T> inline bool IsNonZero(T x) { + return x != 0; +} + +template <> inline bool IsNonZero<uint128_t>(uint128_t x) { + return x != Uint128(0, 0); +} + +#endif // FARMHASH_SELF_TEST_GUARD + +namespace farmhashxoTest { + +uint32_t CreateSeed(int offset, int salt) { + uint32_t h = static_cast<uint32_t>(salt & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h += static_cast<uint32_t>(offset & 0xffffffff); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + h = h * c1; + h ^= (h >> 17); + return h; +} + +#undef SEED +#undef SEED1 +#undef SEED0 +#define SEED CreateSeed(offset, -1) +#define SEED0 CreateSeed(offset, 0) +#define SEED1 CreateSeed(offset, 1) + +#undef TESTING +#define TESTING 1 +#if TESTING +uint32_t expected[] = { +1140953930u, 861465670u, +3277735313u, 2681724312u, +2598464059u, 797982799u, +890626835u, 800175912u, +2603993599u, 921001710u, +1410420968u, 2134990486u, +3283896453u, 1867689945u, +2914424215u, 2244477846u, +255297188u, 2992121793u, +1110588164u, 4186314283u, +161451183u, 3943596029u, +4019337850u, 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assert(ok); \ +} while (0) + +#define IsAlive(x) do { alive += IsNonZero(x); } while (0) + + // After the following line is where the uses of "Check" and such will go. + static int index = 0; +if (offset == -1) { int alive = 0; { uint64_t h = farmhashxo::Hash64WithSeeds(farm_hash_data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64WithSeed(farm_hash_data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64(farm_hash_data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } +{ uint64_t h = farmhashxo::Hash64WithSeeds(farm_hash_data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashxo::Hash64WithSeed(farm_hash_data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } +{ uint64_t h = farmhashxo::Hash64(farm_hash_data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } + + return true; +#undef Check +#undef IsAlive +} + +int RunTest() { + Setup(); + int i = 0; + cout << "Running farmhashxoTest"; + if (!Test(-1)) { + cout << "... Unavailable\n"; + return NoteErrors(); + } + // Good. The function is attempting to hash, so run the full test. + int errors_prior_to_test = errors; + for ( ; i < kTestSize - 1; i++) { + Test(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + Test(0, i); + } + Test(0, kDataSize); + cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); + return NoteErrors(); +} + +#else + +// After the following line is where the code to print hash codes will go. +void Dump(int offset, int len) { +{ uint64_t h = farmhashxo::Hash64WithSeeds(farm_hash_data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashxo::Hash64WithSeed(farm_hash_data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +{ uint64_t h = farmhashxo::Hash64(farm_hash_data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } +} + +#endif + +#undef SEED +#undef SEED1 +#undef SEED0 + +} // namespace farmhashxoTest + +#if !TESTING +int main(int argc, char** argv) { + Setup(); + cout << "uint32_t expected[] = {\n"; + int i = 0; + for ( ; i < kTestSize - 1; i++) { + farmhashxoTest::Dump(i * i, i); + } + for ( ; i < kDataSize; i += i / 7) { + farmhashxoTest::Dump(0, i); + } + farmhashxoTest::Dump(0, kDataSize); + cout << "};\n"; +} +#endif + +Y_UNIT_TEST_SUITE(FarmhashTest) { + Y_UNIT_TEST(Test) { + UNIT_ASSERT(farmhashccTest::RunTest() == 0); + UNIT_ASSERT(farmhashmkTest::RunTest() == 0); + UNIT_ASSERT(farmhashnaTest::RunTest() == 0); + UNIT_ASSERT(farmhashntTest::RunTest() == 0); + UNIT_ASSERT(farmhashsaTest::RunTest() == 0); + UNIT_ASSERT(farmhashsuTest::RunTest() == 0); + UNIT_ASSERT(farmhashteTest::RunTest() == 0); + UNIT_ASSERT(farmhashuoTest::RunTest() == 0); + UNIT_ASSERT(farmhashxoTest::RunTest() == 0); + } +} + +#endif // FARMHASHSELFTEST diff --git a/contrib/libs/farmhash/ut/ya.make b/contrib/libs/farmhash/ut/ya.make new file mode 100644 index 0000000000..94c6d15208 --- /dev/null +++ b/contrib/libs/farmhash/ut/ya.make @@ -0,0 +1,13 @@ +UNITTEST_FOR(contrib/libs/farmhash) + +OWNER( + somov +) + +NO_COMPILER_WARNINGS() + +CFLAGS(-DFARMHASHSELFTEST) + +SRCS(test.cc) + +END() diff --git a/contrib/libs/farmhash/ya.make b/contrib/libs/farmhash/ya.make new file mode 100644 index 0000000000..5e1a631819 --- /dev/null +++ b/contrib/libs/farmhash/ya.make @@ -0,0 +1,30 @@ +LIBRARY() + +LICENSE(MIT) + +LICENSE_TEXTS(.yandex_meta/licenses.list.txt) + +VERSION(2017-06-26-23eecfbe7e84ebf2e229bd02248f431c36e12f1a) + +OWNER(somov) + +ADDINCL(GLOBAL contrib/libs/farmhash/include) + +PEERDIR( + contrib/libs/farmhash/arch/sse41 + contrib/libs/farmhash/arch/sse42 + contrib/libs/farmhash/arch/sse42_aesni +) + +NO_COMPILER_WARNINGS() + +SRCS( + farmhashuo.cc + farmhashxo.cc + farmhashna.cc + farmhashmk.cc + farmhashcc.cc + farmhash_iface.cc +) + +END() |