[Bug rtl-optimization/79574] ICE in want_to_gcse_p, at gcse.c:804

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79574

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Wed Mar 22 10:39:31 2017
New Revision: 246348

URL: https://gcc.gnu.org/viewcvs?rev=246348&root=gcc&view=rev
Log:
Backport r245531

2017-03-22  Martin Liska  <mli...@suse.cz>

        Backport from mainline
        2017-02-17  Martin Liska  <mli...@suse.cz>

        PR rtl-optimization/79574
        * gcse.c (want_to_gcse_p): Prevent integer overflow.
2017-03-22  Martin Liska  <mli...@suse.cz>

        Backport from mainline
        2017-02-17  Martin Liska  <mli...@suse.cz>

        PR rtl-optimization/79574
        * gcc.dg/pr79574.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/pr79574.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/gcse.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog