[Bug middle-end/86995] [9 regression] c-c++-common/torture/builtin-arith-overflow-17.c etc. FAIL

[vladlazar at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86995

--- Comment #7 from vladlazar at gcc dot gnu.org ---
Author: vladlazar
Date: Thu Aug 30 09:30:49 2018
New Revision: 263973

URL: https://gcc.gnu.org/viewcvs?rev=263973&root=gcc&view=rev
Log:
Enable underflow check in canonicalize_comparison. (PR86995)

gcc/
2018-08-30  Vlad Lazar  <vlad.la...@arm.com>

        PR middle-end/86995
        * expmed.c (canonicalize_comparison): Use wi::sub instead of wi::add
        if to_add is negative.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expmed.c