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Fix WASM chunk_count #98

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Merged
llogiq merged 1 commit into from
Jun 1, 2025
Merged

Fix WASM chunk_count #98

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4 changes: 3 additions & 1 deletion src/simd/wasm.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,8 @@ unsafe fn u8x16_from_offset(slice: &[u8], offset: usize) -> v128 {
v128_load(slice.as_ptr().add(offset) as *const _)
}

// Load four 16-byte vectors from a slice at a given offset.
// This function assumes that the slice has at least 64 bytes available from the offset.
#[target_feature(enable = "simd128")]
unsafe fn u8x16x4_from_offset(slice: &[u8], offset: usize) -> (v128, v128, v128, v128) {
debug_assert!(
Expand Down Expand Up @@ -76,7 +78,7 @@ pub unsafe fn chunk_count(haystack: &[u8], needle: u8) -> usize {
let mut count = 0;
let mut offset = 0;

while haystack.len() >= offset + 16 * 255 {
while haystack.len() >= offset + 64 * 255 {
let (mut count1, mut count2, mut count3, mut count4) = (
u8x16_splat(0),
u8x16_splat(0),
Expand Down
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