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Make more code aarch64 friendly

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Justine Tunney 2023-05-02 13:38:16 -07:00
parent ca2860947f
commit 2b73e72d59
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GPG key ID: BE714B4575D6E328
568 changed files with 2197 additions and 1061 deletions
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15
libc/str/strcasestr.c
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@ -36,6 +36,7 @@ typedef char xmm_t __attribute__((__vector_size__(16), __aligned__(16)));
* @see strstr()
*/
noasan char *strcasestr(const char *haystack, const char *needle) {
#ifdef __x86_64__
char c;
xmm_t *p;
size_t i;
@ -68,4 +69,18 @@ noasan char *strcasestr(const char *haystack, const char *needle) {
if (!*haystack++) break;
}
return 0;
#else
size_t i;
unsigned k, m;
if (haystack == needle || !*needle) return haystack;
for (;;) {
for (i = 0;; ++i) {
if (!needle[i]) return (/*unconst*/ char *)haystack;
if (!haystack[i]) break;
if (kToLower[needle[i] & 255] != kToLower[haystack[i] & 255]) break;
}
if (!*haystack++) break;
}
return 0;
#endif
}