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Add not_index_byte and not_index_byte2 functions to simdstring package

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Fixes #9646
This commit is contained in:
copilot-swe-agent[bot]
2026-03-12 07:39:02 +00:00
committed by Kovid Goyal
parent d8af7e2c88
commit f4bf9cf1c9
5 changed files with 231 additions and 0 deletions
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59
tools/simdstring/intrinsics_test.go
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@@ -244,6 +244,65 @@ func TestSIMDStringOps(t *testing.T) {
index_test([]byte("abc"), 'x')
index_test([]byte("abc"), 'b')
not_index_test := func(haystack []byte, needle byte) {
var actual int
expected := not_index_byte_scalar(haystack, needle)
for _, sz := range sizes {
switch sz {
case 16:
actual = not_index_byte_asm_128(haystack, needle)
case 32:
actual = not_index_byte_asm_256(haystack, needle)
}
if actual != expected {
t.Fatalf("not_index failed in: %#v (%d != %d) at size: %d with needle: %#v", string(haystack), expected, actual, sz, needle)
}
}
}
not_index_test(nil, 'a')
not_index_test([]byte{}, 'a')
not_index_test([]byte("aaa"), 'a')
not_index_test([]byte("aaab"), 'a')
not_index_test([]byte("baaa"), 'a')
not_index_test([]byte("abc"), 'a')
for _, sz := range []int{0, 16, 32, 64, 79} {
q := strings.Repeat("a", sz) + "b"
not_index_test([]byte(q), 'a')
not_index_test([]byte(q), 'b')
not_index_test([]byte(strings.Repeat("a", sz)), 'a')
}
not_index2_test := func(haystack []byte, a, b byte) {
var actual int
expected := not_index_byte2_scalar(haystack, a, b)
for _, sz := range sizes {
switch sz {
case 16:
actual = not_index_byte2_asm_128(haystack, a, b)
case 32:
actual = not_index_byte2_asm_256(haystack, a, b)
}
if actual != expected {
t.Fatalf("not_index2 failed in: %#v (%d != %d) at size: %d with needles: %#v %#v", string(haystack), expected, actual, sz, a, b)
}
}
}
not_index2_test(nil, 'a', 'b')
not_index2_test([]byte{}, 'a', 'b')
not_index2_test([]byte("aabb"), 'a', 'b')
not_index2_test([]byte("aabbc"), 'a', 'b')
not_index2_test([]byte("caabb"), 'a', 'b')
for _, sz := range []int{0, 16, 32, 64, 79} {
q := strings.Repeat("ab", sz) + "c"
not_index2_test([]byte(q), 'a', 'b')
not_index2_test([]byte(strings.Repeat("ab", sz)), 'a', 'b')
for align := range 32 {
not_index2_test([]byte(strings.Repeat(" ", align)+q), 'a', 'b')
}
}
}
func TestIntrinsics(t *testing.T) {