[Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation

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

------- Comment #26 from vmakarov at gcc dot gnu dot org  2008-09-03 20:22 -------
Subject: Bug 37243

Author: vmakarov
Date: Wed Sep  3 20:20:57 2008
New Revision: 139952

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139952
Log:
2008-09-03  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-opt/37243

        * ira-int.h (ira_loop_tree_node): Rename mentioned_allocnos to
        all_allocnos.

        * ira-color.c (print_loop_title): Use all_allocnos.
        (color_pass): Ditto.  Don't add border_allocnos.  Check that
        subloop allocno in the correspdoning bitmap all_allocnos.

        * ira-emit.c (change_loop): Use all_allocnos.

        * ira-build.c (create_loop_tree_nodes, finish_loop_tree_node):
        Ditto.
        (ira_create_allocno): Set up all_allocnos bit for the created
        allocno.
        (create_cap_allocno): Remove setting mentioned_allocnos.
        (create_insn_allocnos): Ditto.
        (remove_unnecessary_allocnos): Use all_allocnos.
        (check_allocno_creation): Check that allocnos are in the
        corresponding bitmap all_allocnos.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira-build.c
    trunk/gcc/ira-color.c
    trunk/gcc/ira-emit.c
    trunk/gcc/ira-int.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243