| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -fdump-tree-optimized" } */ | |
| extern void dontcallthis(); | |
| struct A { long a, b; }; | |
| struct B : A {}; | |
| template<class T>void cp(T&a,T const&b){a=b;} | |
| long f(B x){ | |
| B y; cp<A>(y,x); | |
| B z; cp<A>(z,x); | |
| if (y.a - z.a) | |
| dontcallthis (); | |
| return 0; | |
| } | |
| /* { dg-final { scan-tree-dump-not "dontcallthis" "optimized" } } */ |