[Bug tree-optimization/32663] [4.3 regression]: revision 126369 went into an infinite loop

[dberlin at gcc dot gnu dot org]

------- Comment #12 from dberlin at gcc dot gnu dot org  2007-07-12 02:20 -------
Subject: Bug 32663

Author: dberlin
Date: Thu Jul 12 02:20:04 2007
New Revision: 126568

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126568
Log:
2007-07-11  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/32663

        * tree.h (VALUE_HANDLE_VUSES): Remove.
        (struct tree_value_handle): Remove vuses.

        * tree-vn.c (create_value_handle_for_expr): Don't set
        VALUE_HANDLE_VUSES. 

        * tree-ssa-pre.c (expression_vuses): New.
        (alloc_expression_id): Set up expression_vuses.
        (get_expression_vuses): New.
        (set_expression_vuses): Ditto.
        (clear_expression_ids): Modify for expression_vuses.
        (phi_translate_1): Ditto.
        (phi_translate_set): Ditto.
        (value_dies_in_block_x): Ditto
        (valid_in_sets): Ditto.
        (add_to_sets): Ditto.
        (find_existing_value_expr): Ditto.
        (create_value_handle_for_expr): Ditto.
        (make_values_for_stmt): Ditto.
        (vuse_equiv): Remove.


Added:
    trunk/gcc/testsuite/gfortran.fortran-torture/compile/pr32663.f
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr21559.c
    trunk/gcc/tree-ssa-pre.c
    trunk/gcc/tree-ssa-sccvn.c
    trunk/gcc/tree-vn.c
    trunk/gcc/tree.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32663