[Bug tree-optimization/86741] [9 Regression] ICE in vrp_prop::check_mem_ref building glibc for i686-gnu

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86741

--- Comment #8 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Tue Jul 31 16:47:39 2018
New Revision: 263166

URL: https://gcc.gnu.org/viewcvs?rev=263166&root=gcc&view=rev
Log:
PR tree-optimization/86741 - ICE in -Warray-bounds indexing into an object of
incomplete type

gcc/ChangeLog:

        PR tree-optimization/86741
        * tree-vrp.c (vrp_prop::check_mem_ref): Avoid incomplete types.

gcc/testsuite/ChangeLog:

        PR tree-optimization/86741
        * gcc.dg/Warray-bounds-33.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/Warray-bounds-33.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c