/* { dg-do compile } *//* { dg-options "-O1 -fdump-tree-optimized" } */extern void link_error (void);/* tests to check if cprop works when using non-return functions   */extern int not_returning (int) __attribute__ ((noreturn));int b;int test7 (int a){  b = 7;  if (a)    {      not_returning (a);    }  if (b != 7)    link_error ();  return b;}/* There should be not link_error calls, if there is any the   optimization has failed *//* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } *//* { dg-final { cleanup-tree-dump "optimized" } } */