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Restore missing cosmopolitan documentation on website

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This commit is contained in:
Justine Tunney 2023-07-30 11:05:05 -07:00
parent 58352df0a4
commit d9d5f45e2d
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GPG key ID: BE714B4575D6E328
36 changed files with 715 additions and 228 deletions
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7
libc/str/timingsafe_bcmp.c
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@ -22,8 +22,8 @@
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
#ifndef __chibicc__
typedef uint64_t xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
dontasan static unsigned timingsafe_bcmp_sse(const char *p, const char *q,
size_t n) {
uint64_t w;
@ -39,8 +39,9 @@ dontasan static unsigned timingsafe_bcmp_sse(const char *p, const char *q,
w = a[0] | a[1];
return w | w >> 32;
}
#endif
#ifdef __x86_64__
#if defined(__x86_64__) && !defined(__chibicc__)
dontasan static _Microarchitecture("avx") int timingsafe_bcmp_avx(const char *p,
const char *q,
size_t n) {
@ -141,12 +142,14 @@ int timingsafe_bcmp(const void *a, const void *b, size_t n) {
__asan_verify(a, n);
__asan_verify(b, n);
}
#ifndef __chibicc__
#ifdef __x86_64__
if (X86_HAVE(AVX)) {
return timingsafe_bcmp_avx(p, q, n);
}
#endif
return timingsafe_bcmp_sse(p, q, n);
#endif
}
} else if (n >= 4) {
__builtin_memcpy(&u0, p, 4);