2005-10-02 Andrew Pinski <pinskia@physics.uc.edu>
PR c/18851
* c-typeck.c (tagged_tu_seen): Rename to ...
(tagged_tu_seen_cache): this and add val field.
(comptypes): Move functional to comptypes_internal
and free tagged_tu_seen.
(comptypes_internal): New function and call comptypes_internal
instead of comptypes. Speed up by sibcalling
tagged_types_tu_compatible_p.
(alloc_tagged_tu_seen): New function
(free_all_tagged_tu_seen_up_to): New function.
(tagged_types_tu_compatible_p): Return the val of the seen two
types.
Add that the two types are the same to tagged_tu_seen_base
if they are and call comptypes_internal instead of comptypes.
<case UNION_TYPE>: Speed up common type where the fields are
in the same order.
(function_types_compatible_p): Call comptypes_internal instead of
comptypes.
(type_lists_compatible_p): Likewise.
(all functions): s/tagged_tu_seen/tagged_tu_seen_cache/.
From-SVN: r104873
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