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Merge branch 'add_rvv_support' of https://github.com/anthony-zy/snappy into add_rvv_support

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anthony-zy
2025-09-12 11:01:21 +08:00
parent c860cabbc5 441032643f
commit c19d705ee1
1 changed files with 4 additions and 4 deletions
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snappy.cc
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@@ -292,17 +292,17 @@ inline constexpr std::array<char, sizeof...(indexes)> MakePatternMaskBytes(
// Computes the shuffle control mask bytes array for given pattern-sizes and // Computes the shuffle control mask bytes array for given pattern-sizes and
// returns an array. // returns an array.
template <size_t... pattern_sizes_minus_one> template <size_t... pattern_sizes_minus_one>
inline constexpr std::array<std::array<char, kVectorSize>, inline constexpr std::array<std::array<char, sizeof(V128)>,
sizeof...(pattern_sizes_minus_one)> sizeof...(pattern_sizes_minus_one)>
MakePatternMaskBytesTable(int index_offset, MakePatternMaskBytesTable(int index_offset,
index_sequence<pattern_sizes_minus_one...>) { index_sequence<pattern_sizes_minus_one...>) {
return {MakePatternMaskBytes(index_offset, pattern_sizes_minus_one + 1, return {MakePatternMaskBytes(index_offset, pattern_sizes_minus_one + 1,
make_index_sequence<kVectorSize>())...}; make_index_sequence<sizeof(V128)>())...};
} }
// This is an array of shuffle control masks that can be used as the source // This is an array of shuffle control masks that can be used as the source
// operand for PSHUFB to permute the contents of the destination XMM register // operand for PSHUFB to permute the contents of the destination XMM register
// into a repeating byte pattern. // into a repeating byte pattern.
alignas(16) constexpr std::array<std::array<char, kVectorSize>, alignas(16) constexpr std::array<std::array<char, sizeof(V128)>,
16> pattern_generation_masks = 16> pattern_generation_masks =
MakePatternMaskBytesTable( MakePatternMaskBytesTable(
/*index_offset=*/0, /*index_offset=*/0,
@@ -313,7 +313,7 @@ alignas(16) constexpr std::array<std::array<char, kVectorSize>,
// Basically, pattern_reshuffle_masks is a continuation of // Basically, pattern_reshuffle_masks is a continuation of
// pattern_generation_masks. It follows that, pattern_reshuffle_masks is same as // pattern_generation_masks. It follows that, pattern_reshuffle_masks is same as
// pattern_generation_masks for offsets 1, 2, 4, 8 and 16. // pattern_generation_masks for offsets 1, 2, 4, 8 and 16.
alignas(16) constexpr std::array<std::array<char, kVectorSize>, alignas(16) constexpr std::array<std::array<char, sizeof(V128)>,
16> pattern_reshuffle_masks = 16> pattern_reshuffle_masks =
MakePatternMaskBytesTable( MakePatternMaskBytesTable(
/*index_offset=*/16, /*index_offset=*/16,