git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 8b57bfeb JJ |
1 | /* { dg-do run } */ |
| 2 | /* { dg-options "-O2 -fdump-tree-strlen" } */ | |
| 3 | ||
| 4 | #include "strlenopt.h" | |
| 5 | ||
| 6 | /* Yes, there are people who write code like this. */ | |
| 7 | ||
| 8 | __attribute__((noinline, noclone)) char * | |
| 9 | foo (int r) | |
| 10 | { | |
| 11 | char buf[10] = ""; | |
| 12 | strcat (buf, r ? "r" : "w"); | |
| 13 | strcat (buf, "b"); | |
| 14 | return strdup (buf); | |
| 15 | } | |
| 16 | ||
| 17 | __attribute__((noinline, noclone)) char * | |
| 18 | bar (int r) | |
| 19 | { | |
| 20 | char buf[10] = {}; | |
| 21 | strcat (buf, r ? "r" : "w"); | |
| 22 | strcat (buf, "b"); | |
| 23 | return strdup (buf); | |
| 24 | } | |
| 25 | ||
| 26 | int | |
| 27 | main () | |
| 28 | { | |
| 29 | char *q = foo (1); | |
| 30 | if (q != NULL) | |
| 31 | { | |
| 32 | if (strcmp (q, "rb")) | |
| 33 | abort (); | |
| 34 | free (q); | |
| 35 | } | |
| 36 | q = bar (0); | |
| 37 | if (q != NULL) | |
| 38 | { | |
| 39 | if (strcmp (q, "wb")) | |
| 40 | abort (); | |
| 41 | free (q); | |
| 42 | } | |
| 43 | return 0; | |
| 44 | } | |
| 45 | ||
| fef5a0d9 RB |
46 | /* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen" } } */ |
| 47 | /* { dg-final { scan-tree-dump-times "memcpy \\(" 4 "strlen" } } */ | |
| 8b57bfeb JJ |
48 | /* { dg-final { scan-tree-dump-times "strcpy \\(" 0 "strlen" } } */ |
| 49 | /* { dg-final { scan-tree-dump-times "strcat \\(" 0 "strlen" } } */ | |
| 50 | /* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen" } } */ | |
| 51 | /* { dg-final { scan-tree-dump-times "stpcpy \\(" 0 "strlen" } } */ | |
| 52 | /* { dg-final { cleanup-tree-dump "strlen" } } */ |