http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58088
--- Comment #5 from ktkachov at gcc dot gnu.org ---
(In reply to Marek Polacek from comment #4)
> Another testcases:
>
> int
> bar (int i)
> {
> return 1 | ((i * 2) & 254);
> }
>
> int
> foo (int i)
> {
> return 1 | ((i * 2) & 255);
> }
This happens for any value of the RHS of the AND that is >= 128.
A stack overflow occurs because fold_binary_loc keeps getting called, but op1,
which is supposed to be the result of maksing the RHS with the NOT of the 2 in
(i * 2) is set to something else.
Now investigating...
