- }
-}
-
-
-/* Fixup the reference tree OP for replaced VAR_DECLs with mismatched
- types. */
-
-static void
-maybe_fixup_handled_component (tree op)
-{
- tree decl_type;
- tree wanted_type;
-
- while (handled_component_p (TREE_OPERAND (op, 0)))
- op = TREE_OPERAND (op, 0);
- if (TREE_CODE (TREE_OPERAND (op, 0)) != VAR_DECL)
- return;
-
- decl_type = TREE_TYPE (TREE_OPERAND (op, 0));
-
- switch (TREE_CODE (op))
- {
- case COMPONENT_REF:
- /* The DECL_CONTEXT of the field-decl is the record type we look for. */
- wanted_type = DECL_CONTEXT (TREE_OPERAND (op, 1));
- break;
-
- case ARRAY_REF:
- if (TREE_CODE (decl_type) == ARRAY_TYPE
- && (TREE_TYPE (decl_type) == TREE_TYPE (op)
- || useless_type_conversion_p (TREE_TYPE (op),
- TREE_TYPE (decl_type))))
- return;
- /* An unknown size array type should be ok. But we do not
- lower the lower bound in all cases - ugh. */
- wanted_type = build_array_type (TREE_TYPE (op), NULL_TREE);
- break;
-
- case ARRAY_RANGE_REF:
- if (TREE_CODE (decl_type) == ARRAY_TYPE
- && (TREE_TYPE (decl_type) == TREE_TYPE (TREE_TYPE (op))
- || useless_type_conversion_p (TREE_TYPE (TREE_TYPE (op)),
- TREE_TYPE (decl_type))))
- return;
- /* An unknown size array type should be ok. But we do not
- lower the lower bound in all cases - ugh. */
- wanted_type = build_array_type (TREE_TYPE (TREE_TYPE (op)), NULL_TREE);
- break;
-
- case BIT_FIELD_REF:
- case VIEW_CONVERT_EXPR:
- /* Very nice - nothing to do. */
- return;
-
- case REALPART_EXPR:
- case IMAGPART_EXPR:
- if (TREE_CODE (decl_type) == COMPLEX_TYPE
- && (TREE_TYPE (decl_type) == TREE_TYPE (op)
- || useless_type_conversion_p (TREE_TYPE (op),
- TREE_TYPE (decl_type))))
- return;
- wanted_type = build_complex_type (TREE_TYPE (op));
- break;
-
- default:
- gcc_unreachable ();
- }
-
- if (!useless_type_conversion_p (wanted_type, decl_type))
- TREE_OPERAND (op, 0) = build1 (VIEW_CONVERT_EXPR, wanted_type,
- TREE_OPERAND (op, 0));
-}
-
-/* Fixup reference tree operands for substituted prevailing decls
- with mismatched types in STMT. */
-
-static void
-maybe_fixup_decls (gimple stmt)
-{
- /* We have to fixup replaced decls here in case there were
- inter-TU type mismatches. Catch the most common cases
- for now - this way we'll get testcases for the rest as
- the type verifier will complain. */
- if (gimple_assign_single_p (stmt))
- {
- tree lhs = gimple_assign_lhs (stmt);
- tree rhs = gimple_assign_rhs1 (stmt);
-
- /* First catch loads and aggregate copies by adjusting the rhs. */
- if (TREE_CODE (rhs) == VAR_DECL)
- {
- if (!useless_type_conversion_p (TREE_TYPE (lhs), TREE_TYPE (rhs)))
- gimple_assign_set_rhs1 (stmt, build1 (VIEW_CONVERT_EXPR,
- TREE_TYPE (lhs), rhs));
- }
- else if (handled_component_p (rhs))
- maybe_fixup_handled_component (rhs);
- /* Then catch scalar stores. */
- else if (TREE_CODE (lhs) == VAR_DECL)
- {
- if (!useless_type_conversion_p (TREE_TYPE (lhs), TREE_TYPE (rhs)))
- gimple_assign_set_lhs (stmt, build1 (VIEW_CONVERT_EXPR,
- TREE_TYPE (rhs), lhs));
- }
- else if (handled_component_p (lhs))
- maybe_fixup_handled_component (lhs);
- }
- else if (is_gimple_call (stmt))
- {
- tree lhs = gimple_call_lhs (stmt);
-
- if (lhs && TREE_CODE (lhs) == VAR_DECL)
- {
- if (!useless_type_conversion_p (TREE_TYPE (lhs),
- gimple_call_return_type (stmt)))
- gimple_call_set_lhs (stmt, build1 (VIEW_CONVERT_EXPR,
- gimple_call_return_type (stmt),
- lhs));
- }
- else if (lhs && handled_component_p (lhs))
- maybe_fixup_handled_component (lhs);
-
- /* Arguments, especially for varargs functions will be funny... */