[Bug tree-optimization/119778] [13/14/15 regression] -Wuninitialized crashed with longjmp/setjmp since r13-2500

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119778

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Slightly cleaned up testcase:
struct jmp_buf { long l[16]; };
extern "C" void setjmp (jmp_buf *);
struct S {
  void foo () { bar (); }
  virtual char bar () { return 0; }
};
void baz ();
jmp_buf *a;

void
qux (bool x, S *y)
{
  if (x)
    setjmp (a);
  y->foo ();
  baz ();
}