[Bug middle-end/70424] [4.9/5/6 Regression] Pointer derived from integer gets reduced alignment

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70424

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 29 12:36:39 2016
New Revision: 234517

URL: https://gcc.gnu.org/viewcvs?rev=234517&root=gcc&view=rev
Log:
2016-03-29  Richard Biener  <rguent...@suse.de>

        PR middle-end/70424
        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Always
        use alignment returned by get_pointer_alignment_1 if it is
        bigger than BITS_PER_UNIT.
        * builtins.c (get_pointer_alignment_1): Do not return true
        for alignment extracted from SSA info.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/ipa-prop.c