Subversion Repositories openrisc_2011-10-31

/* { dg-do compile } */ 
/* { dg-options "-O2 -fdump-tree-optimized" } */
 
/* Check that the initial values are honored when necessary.  */
 
void link_error (void);
 
/* The call to link_error cannot be eliminated in this case.  */
 
void test1 (int param1, int param2, int x)
{
  if (param1)
    x = 3;
 
  if (param2)
    if (x != 3)
      link_error ();
}
 
/* The call to link_error cannot be eliminated in this case.  */
 
int global;
void test2 (int param1, int param2)
{
  if (param1)
    global = 3;
 
  if (param2)
    if (global != 3)
      link_error ();
}
 
/* In this case, we can eliminate the call, as unless "local" is set
   to 3, its value is undefined.  */
 
void test3 (int param1, int param2)
{
  int local;
 
  if (param1)
    local = 3;
 
  if (param2)
    if (local != 3)
      link_error ();
}
 
/* { dg-final { scan-tree-dump-times "link_error" 2 "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */