| /* This test needs runtime that provides stpcpy function. */ |
| /* { dg-do run { target *-*-linux* *-*-gnu* *-*-uclinux* } } */ |
| /* { dg-options "-O2 -fdump-tree-strlen" } */ |
| |
| #define USE_GNU |
| #include "strlenopt.h" |
| |
| __attribute__((noinline, noclone)) char * |
| fn1 (char *p, const char *q) |
| { |
| /* This strcpy can be optimized into stpcpy. */ |
| strcpy (p, q); |
| /* And this strchr into the return value from it. */ |
| return strchr (p, '\0'); |
| } |
| |
| int |
| main () |
| { |
| char buf[64]; |
| const char *volatile q = "ABCDEFGH"; |
| if (fn1 (buf, q) != buf + 8 || memcmp (buf, "ABCDEFGH", 9) != 0) |
| abort (); |
| return 0; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen1" } } */ |
| /* { dg-final { scan-tree-dump-times "memcpy \\(" 0 "strlen1" } } */ |
| /* { dg-final { scan-tree-dump-times "mempcpy \\(" 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 \\(" 1 "strlen1" } } */ |
