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Make simd8 64 uncopyable and other Visual Studio optimizations (#1031)

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* Working on making simd8x64 immutable


* Even less invasive
This commit is contained in:
Daniel Lemire
2020-07-21 18:11:21 -04:00
committed by GitHub
parent 0ff6833e96
commit 4beb2ed507
22 changed files with 220 additions and 210 deletions
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src/arm64/dom_parser_implementation.cpp
+7 -7
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@@ -15,7 +15,7 @@ namespace arm64 {
using namespace simd;
struct json_character_block {
static really_inline json_character_block classify(const simd::simd8x64<uint8_t> in);
static really_inline json_character_block classify(const simd::simd8x64<uint8_t>& in);
really_inline uint64_t whitespace() const { return _whitespace; }
really_inline uint64_t op() const { return _op; }
@@ -25,7 +25,7 @@ struct json_character_block {
uint64_t _op;
};
really_inline json_character_block json_character_block::classify(const simd::simd8x64<uint8_t> in) {
really_inline json_character_block json_character_block::classify(const simd::simd8x64<uint8_t>& in) {
// Functional programming causes trouble with Visual Studio.
// Keeping this version in comments since it is much nicer:
// auto v = in.map<uint8_t>([&](simd8<uint8_t> chunk) {
@@ -38,7 +38,7 @@ really_inline json_character_block json_character_block::classify(const simd::si
const simd8<uint8_t> table1(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0);
const simd8<uint8_t> table2(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0);
auto v = simd8x64<uint8_t>(
simd8x64<uint8_t> v(
(in.chunks[0] & 0xf).lookup_16(table1) & (in.chunks[0].shr<4>()).lookup_16(table2),
(in.chunks[1] & 0xf).lookup_16(table1) & (in.chunks[1].shr<4>()).lookup_16(table2),
(in.chunks[2] & 0xf).lookup_16(table1) & (in.chunks[2].shr<4>()).lookup_16(table2),
@@ -79,12 +79,12 @@ really_inline json_character_block json_character_block::classify(const simd::si
return { whitespace, op };
}
really_inline bool is_ascii(simd8x64<uint8_t> input) {
simd8<uint8_t> bits = (input.chunks[0] | input.chunks[1]) | (input.chunks[2] | input.chunks[3]);
really_inline bool is_ascii(const simd8x64<uint8_t>& input) {
simd8<uint8_t> bits = input.reduce_or();
return bits.max() < 0b10000000u;
}
really_inline simd8<bool> must_be_continuation(simd8<uint8_t> prev1, simd8<uint8_t> prev2, simd8<uint8_t> prev3) {
really_inline simd8<bool> must_be_continuation(const simd8<uint8_t> prev1, const simd8<uint8_t> prev2, const simd8<uint8_t> prev3) {
simd8<bool> is_second_byte = prev1 >= uint8_t(0b11000000u);
simd8<bool> is_third_byte = prev2 >= uint8_t(0b11100000u);
simd8<bool> is_fourth_byte = prev3 >= uint8_t(0b11110000u);
@@ -96,7 +96,7 @@ really_inline simd8<bool> must_be_continuation(simd8<uint8_t> prev1, simd8<uint8
return is_second_byte ^ is_third_byte ^ is_fourth_byte;
}
really_inline simd8<bool> must_be_2_3_continuation(simd8<uint8_t> prev2, simd8<uint8_t> prev3) {
really_inline simd8<bool> must_be_2_3_continuation(const simd8<uint8_t> prev2, const simd8<uint8_t> prev3) {
simd8<bool> is_third_byte = prev2 >= uint8_t(0b11100000u);
simd8<bool> is_fourth_byte = prev3 >= uint8_t(0b11110000u);
return is_third_byte ^ is_fourth_byte;