* sem_aux.adb (Is_By_Reference_Type): Also return true for a tagged
incomplete type without full view.
* sem_ch6.adb (Exchange_Limited_Views): Change into a function and
return the list of changes.
(Restore_Limited_Views): New procedure to undo the transformation made
by Exchange_Limited_Views.
(Analyze_Subprogram_Body_Helper): Adjust call to Exchange_Limited_Views
and call Restore_Limited_Views at the end, if need be.
(Possible_Freeze): Do not delay freezing because of incomplete types.
(Process_Formals): Remove kludges for class-wide types.
* types.h (By_Copy_Return): Delete.
* gcc-interface/ada-tree.h (TYPE_MAX_ALIGN): Move around.
(TYPE_DUMMY_IN_PROFILE_P): New macro.
* gcc-interface/gigi.h (update_profiles_with): Declare.
(finish_subprog_decl): Likewise.
(get_minimal_subprog_decl): Delete.
(create_subprog_type): Likewise.
(create_param_decl): Adjust prototype.
(create_subprog_decl): Likewise.
* gcc-interface/decl.c (defer_limited_with): Rename into...
(defer_limited_with_list): ...this.
(gnat_to_gnu_entity): Adjust to above renaming.
(finalize_from_limited_with): Likewise.
(tree_entity_vec_map): New structure.
(gt_pch_nx): New helpers.
(dummy_to_subprog_map): New hash table.
(gnat_to_gnu_param): Set the SLOC here. Remove MECH parameter and
add FIRST parameter. Deal with the mechanism here instead of...
Do not make read-only variant of types. Simplify expressions.
In the by-ref case, test the mechanism before must_pass_by_ref
and also TYPE_IS_BY_REFERENCE_P before building the reference type.
(gnat_to_gnu_subprog_type): New static function extracted from...
Do not special-case the type_annotate_only mode. Call
gnat_to_gnu_profile_type instead of gnat_to_gnu_type on return type.
Deal with dummy return types. Likewise for parameter types. Deal
with by-reference types explicitly and add a kludge for null procedures
with untagged incomplete types. Remove assertion on the types and be
prepared for multiple elaboration of the declarations. Skip the whole
CICO processing if the profile is incomplete. Handle the completion of
a previously incomplete profile.
(gnat_to_gnu_entity) <E_Variable>: Rename local variable.
Adjust couple of calls to create_param_decl.
<E_Access_Subprogram_Type, E_Anonymous_Access_Subprogram_Type>:
Remove specific deferring code.
<E_Access_Type>: Also deal with E_Subprogram_Type designated type.
Simplify handling of dummy types and remove obsolete comment.
Constify a couple of variables. Do not set TYPE_UNIVERSAL_ALIASING_P
on dummy types.
<E_Access_Subtype>: Tweak comment and simplify condition.
<E_Subprogram_Type>: ...here. Call it and clean up handling. Remove
obsolete comment and adjust call to gnat_to_gnu_param. Adjust call to
create_subprog_decl.
<E_Incomplete_Type>: Add a couple of 'const' qualifiers and get rid of
inner break statements. Tidy up condition guarding direct use of the
full view.
(get_minimal_subprog_decl): Delete.
(finalize_from_limited_with): Call update_profiles_with on dummy types
with TYPE_DUMMY_IN_PROFILE_P set.
(is_from_limited_with_of_main): Delete.
(associate_subprog_with_dummy_type): New function.
(update_profile): Likewise.
(update_profiles_with): Likewise.
(gnat_to_gnu_profile_type): Likewise.
(init_gnat_decl): Initialize dummy_to_subprog_map.
(destroy_gnat_decl): Destroy dummy_to_subprog_map.
* gcc-interface/misc.c (gnat_get_alias_set): Add guard for accessing
TYPE_UNIVERSAL_ALIASING_P.
(gnat_get_array_descr_info): Minor tweak.
* gcc-interface/trans.c (gigi): Adjust calls to create_subprog_decl.
(build_raise_check): Likewise.
(Compilation_Unit_to_gnu): Likewise.
(Identifier_to_gnu): Accept mismatches coming from a limited context.
(Attribute_to_gnu): Remove kludge for dispatch table entities.
(process_freeze_entity): Do not retrieve old definition if there is an
address clause on the entity. Call update_profiles_with on dummy types
with TYPE_DUMMY_IN_PROFILE_P set.
* gcc-interface/utils.c (build_dummy_unc_pointer_types): Also set
TYPE_REFERENCE_TO to the fat pointer type.
(create_subprog_type): Delete.
(create_param_decl): Remove READONLY parameter.
(finish_subprog_decl): New function extracted from...
(create_subprog_decl): ...here. Call it. Remove CONST_FLAG and
VOLATILE_FLAG parameters and adjust.
(update_pointer_to): Also clear TYPE_REFERENCE_TO in the unconstrained
case.
From-SVN: r235521
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