[Bug tree-optimization/78162] [7 Regression] ICE on invalid code at -Os and above on x86_64-linux-gnu: Segmentation fault

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78162

--- Comment #2 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Wed Nov  2 09:25:22 2016
New Revision: 241778

URL: https://gcc.gnu.org/viewcvs?rev=241778&root=gcc&view=rev
Log:
PR tree-optimization/78162: Reject negative offsets in store merging early

        PR tree-optimization/78162
        * gimple-ssa-store-merging.c (execute): Mark stores with bitpos < 0
        as invalid.

        * gcc.c-torture/compile/pr78162.c: New test.


Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr78162.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-ssa-store-merging.c
    trunk/gcc/testsuite/ChangeLog