[Bug c/66777] faggressive-loop-optimizations behavior.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66777

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
-Waggressive-loop-optimizations, but it doesn't warn for me in this case.  Of
course we warn about

t.c: In function ‘main’:
t.c:8:26: warning: ‘a[0]’ is used uninitialized in this function
[-Wuninitialized]
             for (i = 0; a[i] && i < 5; i++)
                          ^