bjoernager/rust
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Update stdarch

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This commit is contained in:
Eric Huss 2025-02-10 10:41:19 -08:00
parent 30f168ef81
commit a78d1b092c
5 changed files with 25 additions and 14 deletions
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8
compiler/rustc_span/src/analyze_source_file.rs
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@ -83,17 +83,17 @@ cfg_match! {
// For character in the chunk, see if its byte value is < 0, which
// indicates that it's part of a UTF-8 char.
let multibyte_test = unsafe { _mm_cmplt_epi8(chunk, _mm_set1_epi8(0)) };
let multibyte_test = _mm_cmplt_epi8(chunk, _mm_set1_epi8(0));
// Create a bit mask from the comparison results.
let multibyte_mask = unsafe { _mm_movemask_epi8(multibyte_test) };
let multibyte_mask = _mm_movemask_epi8(multibyte_test);
// If the bit mask is all zero, we only have ASCII chars here:
if multibyte_mask == 0 {
assert!(intra_chunk_offset == 0);
// Check for newlines in the chunk
let newlines_test = unsafe { _mm_cmpeq_epi8(chunk, _mm_set1_epi8(b'\n' as i8)) };
let mut newlines_mask = unsafe { _mm_movemask_epi8(newlines_test) };
let newlines_test = _mm_cmpeq_epi8(chunk, _mm_set1_epi8(b'\n' as i8));
let mut newlines_mask = _mm_movemask_epi8(newlines_test);
let output_offset = RelativeBytePos::from_usize(chunk_index * CHUNK_SIZE + 1);