| /* { dg-do run } */ |
| /* { dg-options "-O2 -fdump-tree-strlen" } */ |
| |
| #include "strlenopt.h" |
| |
| /* Yes, there are people who write code like this. */ |
| |
| __attribute__((noinline, noclone)) char * |
| foo (int r) |
| { |
| char buf[10] = ""; |
| strcat (buf, r ? "r" : "w"); |
| strcat (buf, "b"); |
| return strdup (buf); |
| } |
| |
| __attribute__((noinline, noclone)) char * |
| bar (int r) |
| { |
| char buf[10] = {}; |
| strcat (buf, r ? "r" : "w"); |
| strcat (buf, "b"); |
| return strdup (buf); |
| } |
| |
| int |
| main () |
| { |
| char *q = foo (1); |
| if (q != NULL) |
| { |
| if (strcmp (q, "rb")) |
| abort (); |
| free (q); |
| } |
| q = bar (0); |
| if (q != NULL) |
| { |
| if (strcmp (q, "wb")) |
| abort (); |
| free (q); |
| } |
| return 0; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen1" } } */ |
| /* { dg-final { scan-tree-dump-times "strcpy \\(" 0 "strlen1" } } */ |
| /* { dg-final { scan-tree-dump-times "strcat \\(" 0 "strlen1" } } */ |
| /* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen1" } } */ |
| /* { dg-final { scan-tree-dump-times "stpcpy \\(" 0 "strlen1" } } */ |