[Bug tree-optimization/87826] ubsan: gimple-ssa-store-merging.c:281

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87826

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Nov  1 12:31:45 2018
New Revision: 265720

URL: https://gcc.gnu.org/viewcvs?rev=265720&root=gcc&view=rev
Log:
        PR tree-optimization/87826
        * gimple-ssa-store-merging.c (do_shift_rotate): Punt if count is
        negative or larger or equal to type's precision.

        * gcc.dg/pr87826.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr87826.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-ssa-store-merging.c
    trunk/gcc/testsuite/ChangeLog