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src: implement FastByteLengthUtf8 with simdutf::utf8_length_from_latin1 #50840

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merged 4 commits into from
Dec 19, 2023
Merged

src: implement FastByteLengthUtf8 with simdutf::utf8_length_from_latin1 #50840

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efae4bf
src: implement FastByteLengthUtf8 with simdutf::utf8_length_from_latin1
lemire Nov 21, 2023
1eb654e
guard simdutf usage and adds latin1 string to bench
Nov 26, 2023
074dfbb
lint
Nov 27, 2023
eb02110
fix: lint
Dec 4, 2023
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9 changes: 1 addition & 8 deletions src/node_buffer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -743,14 +743,7 @@ void SlowByteLengthUtf8(const FunctionCallbackInfo<Value>& args) {

uint32_t FastByteLengthUtf8(Local<Value> receiver,
const v8::FastOneByteString& source) {
uint32_t result = 0;
uint32_t length = source.length;
const uint8_t* data = reinterpret_cast<const uint8_t*>(source.data);
for (uint32_t i = 0; i < length; ++i) {
result += (data[i] >> 7);
}
result += length;
return result;
return simdutf::utf8_length_from_latin1(source.data, source.length);
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}

static v8::CFunction fast_byte_length_utf8(
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