convopt: fix potential bug with modulo shifts, improve cost calculation for optimizab...

[libfirm] / ir / be / arm / arm_transform.c

diff --git a/ir/be/arm/arm_transform.c b/ir/be/arm/arm_transform.c
index c2a79b2..620ac22 100644 (file)
--- a/ir/be/arm/arm_transform.c
+++ b/ir/be/arm/arm_transform.c
@@ -1428,8 +1428,7 @@ static ir_node *gen_Proj_Start(ir_node *node)
                return be_prolog_get_memory(abihelper);
 
        case pn_Start_T_args:
-               /* we should never need this explicitely */
-               break;
+               return new_r_Bad(get_irn_irg(block), mode_T);
 
        case pn_Start_P_frame_base:
                return be_prolog_get_reg_value(abihelper, sp_reg);