[Bug middle-end/86121] [9 Regression] missing -Wstringop-overflow on strcpy followed by strcat

[edlinger at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86121

--- Comment #4 from Bernd Edlinger <edlinger at gcc dot gnu.org> ---
Author: edlinger
Date: Tue Aug 21 08:56:11 2018
New Revision: 263693

URL: https://gcc.gnu.org/viewcvs?rev=263693&root=gcc&view=rev
Log:
2018-08-21  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        PR middle-end/86121
        * tree-ssa-strlen.c (adjust_last_stmt): Avoid folding away undefined
        behaviour.

testsuite:
2018-08-21  Bernd Edlinger  <bernd.edlin...@hotmail.de>

        PR middle-end/86121
        * gcc.dg/Wstringop-overflow-6.c: Remove xfail.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/Wstringop-overflow-6.c
    trunk/gcc/tree-ssa-strlen.c