42 lines
1.2 KiB
Ada
42 lines
1.2 KiB
Ada
-- { dg-do compile }
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-- { dg-options "-gnata -O2 -fno-inline" }
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with Ada.Unchecked_Conversion;
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package body Loop_Optimization2 is
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function To_Addr_Ptr is
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new Ada.Unchecked_Conversion (System.Address, Addr_Ptr);
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function To_Address is
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new Ada.Unchecked_Conversion (Tag, System.Address);
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function To_Type_Specific_Data_Ptr is
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new Ada.Unchecked_Conversion (System.Address, Type_Specific_Data_Ptr);
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function Interface_Ancestor_Tags (T : Tag) return Tag_Array is
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TSD_Ptr : constant Addr_Ptr := To_Addr_Ptr (To_Address (T));
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TSD : constant Type_Specific_Data_Ptr :=
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To_Type_Specific_Data_Ptr (TSD_Ptr.all);
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Iface_Table : constant Interface_Data_Ptr := TSD.Interfaces_Table;
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begin
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if Iface_Table = null then
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declare
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Table : Tag_Array (1 .. 0);
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begin
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return Table;
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end;
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else
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declare
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Table : Tag_Array (1 .. Iface_Table.Nb_Ifaces);
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begin
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for J in 1 .. Iface_Table.Nb_Ifaces loop
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Table (J) := Iface_Table.Ifaces_Table (J).Iface_Tag;
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end loop;
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return Table;
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end;
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end if;
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end Interface_Ancestor_Tags;
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end Loop_Optimization2;
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