https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83396
--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Andreas Schwab from comment #28)
> Reduced testcase for #c27:
>
> int f1 (int);
> int f2 (int);
> int
> foo (int f)
> {
> return f1 (f) || f2 (f) != 0;
> }
This is IMNSHO a bug in the ia64 backend. The group barrier added before
BB_HEAD of bb4 should not claim it is inside of bb4.
