[Bug tree-optimization/67742] 3rd-level restrict ignored

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67742

--- Comment #7 from vries at gcc dot gnu.org ---
Author: vries
Date: Wed Nov  4 14:18:43 2015
New Revision: 229755

URL: https://gcc.gnu.org/viewcvs?rev=229755&root=gcc&view=rev
Log:
Handle recursive restrict in function parameter

2015-11-04  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/67742
        * tree-ssa-structalias.c (struct fieldoff): Add restrict_pointed_type
        field.
        (push_fields_onto_fieldstack): Handle restrict_pointed_type field.
        (create_variable_info_for_1): Add and handle handle_param parameter.
        Add restrict handling.
        (create_variable_info_for): Call create_variable_info_for_1 with extra
        arg.
        (make_param_constraints): Drop restrict_name parameter.  Ignore
        vi->only_restrict_pointers.
        (intra_create_variable_infos): Call create_variable_info_for_1 with
        extra arg.  Remove restrict handling.  Call make_param_constraints with
        one less arg.

        * gcc.dg/tree-ssa/restrict-7.c: New test.
        * gcc.dg/tree-ssa/restrict-8.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/restrict-7.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/restrict-8.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-structalias.c