[Bug debug/90733] [8 Regression] ICE in simplify_subreg, at simplify-rtx.c:6440

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90733

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Aug 29 15:01:10 2019
New Revision: 275040

URL: https://gcc.gnu.org/viewcvs?rev=275040&root=gcc&view=rev
Log:
        Backported from mainline
        2019-06-05  Jakub Jelinek  <ja...@redhat.com>

        PR debug/90733
        * var-tracking.c (vt_expand_loc_callback): Don't create raw subregs
        with VOIDmode inner operands.

        * gcc.dg/pr90733.c: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/pr90733.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/testsuite/ChangeLog
    branches/gcc-8-branch/gcc/var-tracking.c