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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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6
libc/str/bcmp.c
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@ -23,6 +23,7 @@
typedef uint64_t xmm_t __attribute__((__vector_size__(16), __aligned__(1)));
#if !defined(__chibicc__)
static int bcmp_sse(const char *p, const char *q, size_t n) {
xmm_t a;
while (n > 32) {
@ -36,8 +37,9 @@ static int bcmp_sse(const char *p, const char *q, size_t n) {
*(const xmm_t *)(p + n - 16) ^ *(const xmm_t *)(q + n - 16);
return !!(a[0] | a[1]);
}
#endif
#ifdef __x86_64__
#if defined(__x86_64__) && !defined(__chibicc__)
_Microarchitecture("avx") static int bcmp_avx(const char *p, const char *q,
size_t n) {
xmm_t a, b, c, d;
@ -123,12 +125,14 @@ int bcmp(const void *a, const void *b, size_t n) {
__builtin_memcpy(&j, q + n - 4, 4);
return !!(i ^ j);
}
#ifndef __chibicc__
#ifdef __x86_64__
} else if (LIKELY(X86_HAVE(AVX))) {
return bcmp_avx(p, q, n);
#endif
} else {
return bcmp_sse(p, q, n);
#endif
}
}
while (n--) {