[Bug c++/84639] gcc/c-family/c-attribs.c:1822:27: runtime error: shift exponent -1 is negative

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84639

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Thu Mar  1 19:15:42 2018
New Revision: 258109

URL: https://gcc.gnu.org/viewcvs?rev=258109&root=gcc&view=rev
Log:
        PR c++/84639
        * c-attribs.c (common_handle_aligned_attribute): Don't use invalid
        alignment in computation.

Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-attribs.c