X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeconstrperm.c;h=f493ba7ae9ed04d44a66d301be1d0b6709e51e6d;hb=b46c894cf05a8c569d404ba0ef92c384d76e34d6;hp=9c30b4a7480a45dba153addd9e308305b7d64f00;hpb=3624a2667e9a0ad86f74aa1c1fb44aaa7b888199;p=libfirm

diff --git a/ir/be/beconstrperm.c b/ir/be/beconstrperm.c
index 9c30b4a74..f493ba7ae 100644
--- a/ir/be/beconstrperm.c
+++ b/ir/be/beconstrperm.c
@@ -33,8 +33,9 @@ static void walker_insert_constr_perms(ir_node *bl, void *env) {
 		for(pos=-1; pos<max; ++pos) {
 			arch_get_register_req(aenv, &req, irn, pos);
 			/* if a restriction is found, insert a perm before the irn */
-			if (req.type == arch_register_req_type_limited) {
+			if (cenv->cls == arch_get_irn_reg_class(aenv, irn, pos) && req.type == arch_register_req_type_limited) {
 				insert_Perm_after(menv, cenv->cls, cenv->dom_front, sched_prev(irn));
+				/* TODO: Next line is overkill. Update_liveness would suffice. */
 				be_liveness(get_irn_irg(bl));
 				break;
 			}