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/* { dg-do compile } */
/* { dg-options "-fcompare-debug" } */
 
extern void error(void) __attribute__((noreturn));
 
struct S {
  struct S *s;
};
 
static inline unsigned char f2()
{
  error();
}
 
static inline void f1()
{
  int builtin_optab;
  if (!f2() && builtin_optab)
    error();
}
 
extern void f4(struct S *s);
 
static inline void f3(struct S *s)
{
  f4(s->s->s);
}
 
void expand_builtin(struct S *s, int cond)
{
  if (cond)
    f1();
  f3(s);
}