| // PR rtl-optimization/16590 | |
| // { dg-do run } | |
| // { dg-options "-O2" } | |
| extern "C" void abort(); | |
| struct iterator { | |
| char * p; | |
| int *dummy; | |
| }; | |
| static iterator pend(char * start) { | |
| iterator p = {start, 0}; | |
| if (p.p == start) p.p = start+5; | |
| --p.p; | |
| return p; | |
| } | |
| int main() { | |
| char mem[4+1]; | |
| if(pend(mem).p != mem+4) | |
| abort (); | |
| } |