[Bug fortran/70931] [4.9 Regression] ICE with -g in native_encode_initializer, bei dwarf2out.c:17768

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70931

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Jul  7 11:46:08 2016
New Revision: 238087

URL: https://gcc.gnu.org/viewcvs?rev=238087&root=gcc&view=rev
Log:
2016-07-07  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2016-04-04  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/70484
        * rtl.h (canon_output_dependence): Declare.
        * alias.c (canon_output_dependence): New function.
        * dse.c (record_store): Use canon_output_dependence rather
        than canon_true_dependence.

        * gcc.dg/torture/pr70484.c: New testcase.

        2016-06-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/71452
        * tree-ssa.c (non_rewritable_lvalue_p): Make sure that the
        type used for the SSA rewrite has enough precision to cover
        the dynamic type of the location.

        * gcc.dg/torture/pr71452.c: New testcase.

        2016-05-06  Richard Biener  <rguenther@suse.de>

        PR middle-end/70931
        * dwarf2out.c (native_encode_initializer): Skip zero-sized fields.

        * gfortran.dg/pr70931.f90: New testcase.

        2016-03-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/70022
        * fold-const.c (fold_indirect_ref_1): Fix range checking for
        vector BIT_FIELD_REF extract.

        * gcc.dg/pr70022.c: New testcase.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/torture/pr71452.C
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr70022.c
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/torture/pr70484.c
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/torture/pr71452.c
    branches/gcc-4_9-branch/gcc/testsuite/gfortran.dg/pr70931.f90
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/alias.c
    branches/gcc-4_9-branch/gcc/dse.c
    branches/gcc-4_9-branch/gcc/dwarf2out.c
    branches/gcc-4_9-branch/gcc/fold-const.c
    branches/gcc-4_9-branch/gcc/rtl.h
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_9-branch/gcc/tree-ssa.c