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Merge pull request #5607 from blob1807/fix-wasm-simd-mem-equal

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Fix stride in `memory_equal/compare_zero` giving false positves
This commit is contained in:
Laytan
2025-08-20 21:47:56 +02:00
committed by GitHub
parent 06179fc736 f90d7029b4
commit 0c9e1f5807
1 changed files with 4 additions and 4 deletions
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base/runtime/internal.odin
+4 -4
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@@ -268,8 +268,8 @@ memory_equal :: proc "contextless" (x, y: rawptr, n: int) -> bool {
} }
} }
m = (n-i) / 8 * 8 m = (n-i) / size_of(uintptr) * size_of(uintptr)
for /**/; i < m; i += 8 { for /**/; i < m; i += size_of(uintptr) {
if intrinsics.unaligned_load(cast(^uintptr)&a[i]) != intrinsics.unaligned_load(cast(^uintptr)&b[i]) { if intrinsics.unaligned_load(cast(^uintptr)&a[i]) != intrinsics.unaligned_load(cast(^uintptr)&b[i]) {
return false return false
} }
@@ -389,8 +389,8 @@ memory_compare_zero :: proc "contextless" (a: rawptr, n: int) -> int #no_bounds_
} }
} }
m = (n-i) / 8 * 8 m = (n-i) / size_of(uintptr) * size_of(uintptr)
for /**/; i < m; i += 8 { for /**/; i < m; i += size_of(uintptr) {
if intrinsics.unaligned_load(cast(^uintptr)&bytes[i]) != 0 { if intrinsics.unaligned_load(cast(^uintptr)&bytes[i]) != 0 {
return 1 return 1
} }