[Bug middle-end/32018] [4.3 Regression] ICE on optimization

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

------- Comment #4 from rakdver at gcc dot gnu dot org  2007-05-24 15:02 -------
Subject: Bug 32018

Author: rakdver
Date: Thu May 24 14:02:12 2007
New Revision: 125024

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125024
Log:
        PR middle-end/32018
        * tree-ssa-threadupdate.c (thread_through_loop_header): Use
        set_loop_copy.
        (thread_through_all_blocks): Call initialize_original_copy_tables
        and free_original_copy_tables.
        * cfgloopmanip.c (duplicate_loop, duplicate_loop_to_header_edge):
        Use set_loop_copy.
        * tree-cfg.c (tree_duplicate_sese_region): Ditto.
        * cfghooks.c (duplicate_block): Use get_loop_copy.
        * cfg.c: Include cfgloop.h.
        (loop_copy): New hash table.
        (initialize_original_copy_tables): Initialize loop_copy table.
        (free_original_copy_tables): Free loop_copy table.
        (copy_original_table_clear, copy_original_table_set,
        set_loop_copy, get_loop_copy): New functions.
        (set_bb_original, set_bb_copy): Use copy_original_table_set.
        * cfgloop.h (struct loop): Remove copy field.
        * Makefile.in (cfg.o): Add CFGLOOP_H dependency.
        * basic-block.h (set_loop_copy, get_loop_copy): Declare.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/basic-block.h
    trunk/gcc/cfg.c
    trunk/gcc/cfghooks.c
    trunk/gcc/cfgloop.h
    trunk/gcc/cfgloopmanip.c
    trunk/gcc/tree-cfg.c
    trunk/gcc/tree-ssa-threadupdate.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32018