benode: fix be_new_Perm for width!=1

diff --git a/ir/be/benode.c b/ir/be/benode.c
index 80ca173..af54ed2 100644 (file)
--- a/ir/be/benode.c
+++ b/ir/be/benode.c
@@ -358,8 +358,19 @@ ir_node *be_new_Perm(const arch_register_class_t *cls, ir_node *block,
        attr                = (be_node_attr_t*) get_irn_generic_attr(irn);
        attr->exc.pin_state = op_pin_state_pinned;
        for (i = 0; i < n; ++i) {
-               be_node_set_reg_class_in(irn, i, cls);
-               be_node_set_reg_class_out(irn, i, cls);
+               const ir_node             *input = in[i];
+               const arch_register_req_t *req   = arch_get_irn_register_req(input);
+               if (req->width == 1) {
+                       be_set_constr_in(irn, i, cls->class_req);
+                       be_set_constr_out(irn, i, cls->class_req);
+               } else {
+                       arch_register_req_t *new_req = allocate_reg_req(irn);
+                       new_req->cls   = cls;
+                       new_req->type  = (req->type & arch_register_req_type_aligned);
+                       new_req->width = req->width;
+                       be_set_constr_in(irn, i, new_req);
+                       be_set_constr_out(irn, i, new_req);
+               }
        }
 
        return irn;