| /* { dg-do run } */ |
| /* { dg-options "-O2" } */ |
| |
| #include "strlenopt.h" |
| |
| __attribute__((noinline, noclone)) char * |
| fn1 (char *p, size_t *l) |
| { |
| char *q = strcat (p, "abcde"); |
| *l = strlen (p); |
| return q; |
| } |
| |
| __attribute__((noinline, noclone)) char * |
| fn2 (char *p, const char *q, size_t *l1, size_t *l2) |
| { |
| size_t l = strlen (q); |
| char *r = strcat (p, q); |
| *l1 = l; |
| *l2 = strlen (p); |
| return r; |
| } |
| |
| __attribute__((noinline, noclone)) char * |
| fn3 (char *p, const char *q, size_t *l) |
| { |
| char *r = strcpy (p, q); |
| *l = strlen (p); |
| return r; |
| } |
| |
| __attribute__((noinline, noclone)) char * |
| fn4 (char *p, const char *q, size_t *l) |
| { |
| char *r = strcat (p, q); |
| *l = strlen (p); |
| return r; |
| } |
| |
| __attribute__((noinline, noclone)) char * |
| fn5 (char *p, const char *q, size_t *l1, size_t *l2, size_t *l3) |
| { |
| size_t l = strlen (q); |
| size_t ll = strlen (p); |
| char *r = strcat (p, q); |
| *l1 = l; |
| *l2 = strlen (p); |
| *l3 = ll; |
| return r; |
| } |
| |
| __attribute__((noinline, noclone)) char * |
| fn6 (char *p, const char *q, size_t *l1, size_t *l2) |
| { |
| size_t l = strlen (p); |
| char *r = strcat (p, q); |
| *l1 = strlen (p); |
| *l2 = l; |
| return r; |
| } |
| |
| int |
| main () |
| { |
| char buf[64]; |
| const char *volatile q = "fgh"; |
| size_t l, l1, l2, l3; |
| memset (buf, '\0', sizeof buf); |
| memset (buf, 'a', 3); |
| if (fn1 (buf, &l) != buf || l != 8 || memcmp (buf, "aaaabcde", 9) != 0) |
| abort (); |
| if (fn2 (buf, q, &l1, &l2) != buf || l1 != 3 || l2 != 11 |
| || memcmp (buf, "aaaabcdefgh", 12) != 0) |
| abort (); |
| if (fn3 (buf, q, &l) != buf || l != 3 |
| || memcmp (buf, "fgh\0bcdefgh", 12) != 0) |
| abort (); |
| if (fn4 (buf, q, &l) != buf || l != 6 |
| || memcmp (buf, "fghfgh\0efgh", 12) != 0) |
| abort (); |
| l1 = 0; |
| l2 = 0; |
| if (fn5 (buf, q, &l1, &l2, &l3) != buf || l1 != 3 || l2 != 9 || l3 != 6 |
| || memcmp (buf, "fghfghfgh\0h", 12) != 0) |
| abort (); |
| if (fn6 (buf, q, &l1, &l2) != buf || l1 != 12 || l2 != 9 |
| || memcmp (buf, "fghfghfghfgh", 13) != 0) |
| abort (); |
| return 0; |
| } |