[Bug rtl-optimization/91173] [9 Regression] ICE: in int_mode_for_mode, at stor-layout.c:403

[mbelivea at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91173

--- Comment #6 from Matthew Beliveau <mbelivea at gcc dot gnu.org> ---
Author: mbelivea
Date: Tue Jul 23 15:52:48 2019
New Revision: 273740

URL: https://gcc.gnu.org/viewcvs?rev=273740&root=gcc&view=rev
Log:
PR rtl-optimization/91173

        Backported from mainline
        2019-07-16  Jeff Law  <law@redhat.com>

        PR rtl-optimization/91173
        * tree-ssa-address.c (addr_for_mem_ref): If the base is an
        SSA_NAME with a constant value, fold its value into the offset
        and clear the base before calling gen_addr_rtx.
        * g++.dg/pr91173.C: New test.

Added:
    branches/gcc-8-branch/gcc/testsuite/g++.dg/pr91173.C
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/tree-ssa-address.c