[Bug middle-end/37485] [graphite] Disconnecting exit edge in process of code generation

[hjagasia at gcc dot gnu dot org]

------- Comment #6 from hjagasia at gcc dot gnu dot org  2008-09-12 16:59 -------
2008-09-05  Jan Sjodin  <jan.sjodin@amd.com>
            Harsha Jagasia  <harsha.jagasia@amd.com>

        * graphite.c (gmp_cst_to_tree): Moved.
        (iv_stack_entry_is_constant): New.
        (iv_stack_entry_is_iv): New.
        (loop_iv_stack_push): Renamed to loop_iv_stack_push_iv.
        (loop_iv_stack_insert_constant): New.
        (loop_iv_stack_pop): Use new datatpype.
        (loop_iv_stack_get_iv): Same.
        (loop_iv_stack_get_iv_from_name): Same.
        (loop_iv_stack_debug): Renamed to debug_loop_iv_stack.
        (loop_iv_stack_patch_for_consts): New.
        (loop_iv_stack_remove_constants): New.
        (graphite_create_new_loop): Use loop_iv_stack_push_iv.
        (translate_clast): Call loop_iv_stack_patch_for_consts and
        loop_iv_stack_remove_constants.
        (gloog): Use new datatype.  Redirect construction edge to end
        block to avoid accidental deletion.
        (limit_scops): Prevent overlapping scops.
        * graphite.h (enum iv_stack_entry_kind): New.  Tag for data in
        iv stack entry.
        (union iv_stack_entry_data): New.  Data in iv stack entry.
        (struct iv_stack_entry): New.  Datatype for iv stack entries.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37485