28 extern char *strchr(const char *s, int c);
37 		     "movl %4,%%ecx\n\t"  in __memcpy()
42 		     : "=&c" (d0), "=&D" (d1), "=&S" (d2)  in __memcpy()
43 		     : "0" (n / 4), "g" (n), "1" ((long)to), "2" ((long)from)  in __memcpy()
66 	case 4:  in __constant_memcpy()
75 		*((char *)to + 4) = *((char *)from + 4);  in __constant_memcpy()
89 	if (n >= 5 * 4) {  in __constant_memcpy()
93 			     : "=&c" (ecx), "=&D" (edi), "=&S" (esi)  in __constant_memcpy()
94 			     : "0" (n / 4), "1" (edi), "2" (esi)  in __constant_memcpy()
99 		if (n >= 4 * 4)  in __constant_memcpy()
104 		if (n >= 3 * 4)  in __constant_memcpy()
109 		if (n >= 2 * 4)  in __constant_memcpy()
114 		if (n >= 1 * 4)  in __constant_memcpy()
120 	switch (n % 4) {  in __constant_memcpy()
163 extern void *memchr(const void *cs, int c, size_t count);
165 static inline void *__memset_generic(void *s, char c, size_t count)  in __memset_generic()  argument
170 		     : "=&c" (d0), "=&D" (d1)  in __memset_generic()
171 		     : "a" (c), "1" (s), "0" (count)  in __memset_generic()
177 #define __constant_count_memset(s, c, count) __memset_generic((s), (c), (count))  argument
187 #define __memset(s, c, count)				\  argument
189 	 ? __constant_count_memset((s), (c), (count))	\
190 	 : __memset_generic((s), (c), (count)))
195 #define memset(s, c, count) __builtin_memset(s, c, count)  argument
204 		     : "=&c" (d0), "=&D" (d1)  in memset16()
216 		     : "=&c" (d0), "=&D" (d1)  in memset32()
223  * find the first occurrence of byte 'c', or 1 past the area if none
226 extern void *memscan(void *addr, int c, size_t size);