mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
John Keiser
39 lines
1.3 KiB
C++
39 lines
1.3 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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#ifdef IS_X86_64
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TARGET_HASWELL
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namespace simdjson {
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template <>
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really_inline parse_string_helper
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find_bs_bits_and_quote_bits<Architecture::HASWELL>(const uint8_t *src,
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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(
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_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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} // namespace simdjson
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UNTARGET_REGION
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#define TARGETED_ARCHITECTURE Architecture::HASWELL
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#define TARGETED_REGION TARGET_HASWELL
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#include "simdjson/stringparsing_common.h"
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#undef TARGETED_ARCHITECTURE
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#undef TARGETED_REGION
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#endif // IS_X86_64
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#endif
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