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-rw-r--r--gcc/fortran/trans-expr.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c
index d6c1f9f..da7cfba 100644
--- a/gcc/fortran/trans-expr.c
+++ b/gcc/fortran/trans-expr.c
@@ -2247,6 +2247,10 @@ gfc_apply_interface_mapping_to_expr (gfc_interface_mapping * mapping,
expr->symtree = sym->new_sym;
else if (sym->expr)
gfc_replace_expr (expr, gfc_copy_expr (sym->expr));
+ /* Replace base type for polymorphic arguments. */
+ if (expr->ref && expr->ref->type == REF_COMPONENT
+ && sym->expr && sym->expr->ts.type == BT_CLASS)
+ expr->ref->u.c.sym = sym->expr->ts.u.derived;
}
/* ...and to subexpressions in expr->value. */