[Bug sanitizer/80168] [5/6 Regression] ICE in make_decl_rtl, at varasm.c:1311 w/ VLA and -fsanitize=address

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80168

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri May  5 21:45:42 2017
New Revision: 247691

URL: https://gcc.gnu.org/viewcvs?rev=247691&root=gcc&view=rev
Log:
        Backported from mainline
        2017-03-27  Jakub Jelinek  <ja...@redhat.com>

        PR sanitizer/80168
        * asan.c (instrument_derefs): Copy over last operand from
        original COMPONENT_REF to the new COMPONENT_REF with
        DECL_BIT_FIELD_REPRESENTATIVE.
        * ubsan.c (instrument_object_size): Likewise.

        * gcc.dg/asan/pr80168.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.dg/asan/pr80168.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/asan.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog
    branches/gcc-6-branch/gcc/ubsan.c