mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
Daniel Lemire
eba02dc1b9
* Attempt 1 - fn targeting GCC won't work with templates with different targets, need to specialize all the way up the call stack. * Compiles properly with cmake. Does not with the Makefile. * Compilation works with Makefile * instruction_set changes to architecture * some aesthetic changes * fix amalgation and tests + aesthetic changes * This now compiles and passes tests under CLANG * Minor correction. * Trying to make it work on ARM * Adding missing namespace * Missing bracket * Fixing minor compilation issues. * Getting parse to use runtime dispatch * Fixing amalgamation script. * Making sure that NEON is supported. * Fixing typo * Merging https://github.com/lemire/simdjson/pull/229 * Manual merge of https://github.com/lemire/simdjson/pull/229 by @jkeiser (second part) * Trying another way. * Removing the paral. * Fixing the make file * Let us make the practice run long enough. * Resolved the awful slowness. * Cleaning the README.md * With runtime dispatching, we should not need flags anymore. * Changing isa detection file's name + fixing typos.
38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
#ifndef SIMDJSON_STRINGPARSING_HASWELL_H
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#define SIMDJSON_STRINGPARSING_HASWELL_H
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#include "simdjson/stringparsing.h"
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#include "simdjson/stringparsing_macros.h"
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#ifdef IS_X86_64
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TARGET_HASWELL
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namespace simdjson {
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template<> really_inline
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parse_string_helper find_bs_bits_and_quote_bits<architecture::haswell> (const uint8_t *src, uint8_t *dst) {
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// this can read up to 31 bytes beyond the buffer size, but we require
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// SIMDJSON_PADDING of padding
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static_assert(sizeof(__m256i) - 1 <= SIMDJSON_PADDING);
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__m256i v = _mm256_loadu_si256(reinterpret_cast<const __m256i *>(src));
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// store to dest unconditionally - we can overwrite the bits we don't like
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// later
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_mm256_storeu_si256(reinterpret_cast<__m256i *>(dst), v);
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auto quote_mask = _mm256_cmpeq_epi8(v, _mm256_set1_epi8('"'));
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return {
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static_cast<uint32_t>(_mm256_movemask_epi8(_mm256_cmpeq_epi8(v, _mm256_set1_epi8('\\')))), // bs_bits
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static_cast<uint32_t>(_mm256_movemask_epi8(quote_mask)) // quote_bits
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};
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}
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template<>
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WARN_UNUSED ALLOW_SAME_PAGE_BUFFER_OVERRUN_QUALIFIER LENIENT_MEM_SANITIZER really_inline
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bool parse_string<architecture::haswell>(UNUSED const uint8_t *buf, UNUSED size_t len,
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ParsedJson &pj, UNUSED const uint32_t depth, UNUSED uint32_t offset) {
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PARSE_STRING(architecture::haswell, buf, len, pj, depth, offset);
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}
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}
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UNTARGET_REGION
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#endif
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#endif |