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Add an IndexByte implementation useful for benchmarking against stdlib SIMD implementation

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Kovid Goyal
2024-03-07 09:36:40 +05:30
parent 9ea0dde469
commit 47fea26b62
4 changed files with 71 additions and 0 deletions
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11
tools/simdstring/intrinsics.go
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@@ -12,6 +12,13 @@ var Have128bit = false
var Have256bit = false
var VectorSize = 1
// Return the index at which b first occurs in data. If not found -1 is returned.
var IndexByte func(data []byte, b byte) int = index_byte_scalar
// Return the index at which either a or b first occurs in text. If neither is
// found -1 is returned.
var IndexByteString func(text string, b byte) int = index_byte_string_scalar
// Return the index at which either a or b first occurs in data. If neither is
// found -1 is returned.
var IndexByte2 func(data []byte, a, b byte) int = index_byte2_scalar
@@ -38,12 +45,16 @@ func init() {
Have256bit = HasSIMD256Code
}
if Have256bit {
IndexByte = index_byte_asm_256
IndexByteString = index_byte_string_asm_256
IndexByte2 = index_byte2_asm_256
IndexByte2String = index_byte2_string_asm_256
IndexC0 = index_c0_asm_256
IndexC0String = index_c0_string_asm_256
VectorSize = 32
} else if Have128bit {
IndexByte = index_byte_asm_128
IndexByteString = index_byte_string_asm_128
IndexByte2 = index_byte2_asm_128
IndexByte2String = index_byte2_string_asm_128
IndexC0 = index_c0_asm_128