[Ada] Relax assertion on designated types for equality operators

gcc/ada/

	* gcc-interface/utils2.c (build_binary_op) <EQ_EXPR>: Relax a
	little the assertion on designated types of pointer types.
This commit is contained in:
Eric Botcazou 2022-01-03 16:15:20 +01:00 committed by Pierre-Marie de Rodat
parent 10608753db
commit 7317a46128

View File

@ -6,7 +6,7 @@
* *
* C Implementation File *
* *
* Copyright (C) 1992-2021, Free Software Foundation, Inc. *
* Copyright (C) 1992-2022, Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
@ -1118,7 +1118,7 @@ build_binary_op (enum tree_code op_code, tree result_type,
return result;
}
/* Otherwise, the base types must be the same, unless they are both fat
/* Otherwise, the base types must be the same, unless they are both (fat)
pointer types or record types. In the latter case, use the best type
and convert both operands to that type. */
if (left_base_type != right_base_type)
@ -1131,6 +1131,18 @@ build_binary_op (enum tree_code op_code, tree result_type,
best_type = left_base_type;
}
else if (POINTER_TYPE_P (left_base_type)
&& POINTER_TYPE_P (right_base_type))
{
/* Anonymous access types in Ada 2005 can point to different
members of a tagged type hierarchy. */
gcc_assert (TYPE_MAIN_VARIANT (TREE_TYPE (left_base_type))
== TYPE_MAIN_VARIANT (TREE_TYPE (right_base_type))
|| (TYPE_ALIGN_OK (TREE_TYPE (left_base_type))
&& TYPE_ALIGN_OK (TREE_TYPE (right_base_type))));
best_type = left_base_type;
}
else if (TREE_CODE (left_base_type) == RECORD_TYPE
&& TREE_CODE (right_base_type) == RECORD_TYPE)
{
@ -1153,13 +1165,6 @@ build_binary_op (enum tree_code op_code, tree result_type,
gcc_unreachable ();
}
else if (POINTER_TYPE_P (left_base_type)
&& POINTER_TYPE_P (right_base_type))
{
gcc_assert (TREE_TYPE (left_base_type)
== TREE_TYPE (right_base_type));
best_type = left_base_type;
}
else
gcc_unreachable ();