| /* { dg-do compile } */ | |
| /* { dg-options "-O -fdump-tree-fre1" } */ | |
| int x = 1; | |
| int __attribute__((noinline,noclone)) fn () | |
| { | |
| return x; | |
| } | |
| int (*f)(); | |
| int main () | |
| { | |
| int res; | |
| f = fn; | |
| x = 0; | |
| res = f (); | |
| res += x; | |
| if (res != 0) | |
| __builtin_abort (); | |
| return 0; | |
| } | |
| /* We should be able to optimize the load from x in main and thus the | |
| addition. */ | |
| /* { dg-final { scan-tree-dump-times "= x;" 1 "fre1" } } */ | |
| /* { dg-final { scan-tree-dump-times " \\\+ " 0 "fre1" } } */ |