Add and fix some comments.

[libfirm] / ir / be / bestate.c

diff --git a/ir/be/bestate.c b/ir/be/bestate.c
index 167e5cd..cd3a3a8 100644 (file)
--- a/ir/be/bestate.c
+++ b/ir/be/bestate.c
@@ -161,6 +161,7 @@ static void spill_phi(minibelady_env_t *env, ir_node *phi)
        ir_node      *block         = get_nodes_block(phi);
        int           arity         = get_irn_arity(phi);
        ir_node     **in            = ALLOCAN(ir_node*, arity);
+       ir_node      *dummy         = new_r_Dummy(irg, mode_M);
        ir_node      *spill_to_kill = NULL;
        spill_info_t *spill_info;
        int           i;
@@ -175,7 +176,7 @@ static void spill_phi(minibelady_env_t *env, ir_node *phi)
 
        /* create a new phi-M with bad preds */
        for (i = 0; i < arity; ++i) {
-               in[i] = new_r_Unknown(irg, mode_M);
+               in[i] = dummy;
        }
 
        DBG((dbg, LEVEL_2, "\tcreate Phi-M for %+F\n", phi));
@@ -461,7 +462,7 @@ static ir_node *get_end_of_block_insertion_point(ir_node *block)
        if (!is_cfop(last)) {
                last = sched_next(last);
                /* last node must be a cfop, only exception is the start block */
-               assert(last     == get_irg_start_block(get_irn_irg(block)));
+               assert(last == get_irg_start_block(get_irn_irg(block)));
        }
 
        return last;
@@ -472,7 +473,7 @@ static ir_node *get_end_of_block_insertion_point(ir_node *block)
  */
 static void fix_block_borders(ir_node *block, void *data)
 {
-       minibelady_env_t *env = data;
+       minibelady_env_t *env = (minibelady_env_t*)data;
        ir_graph *irg = get_irn_irg(block);
        ir_node *startblock = get_irg_start_block(irg);
        int i;
@@ -507,7 +508,7 @@ static void fix_block_borders(ir_node *block, void *data)
                     pred_info->end_state, need_state));
 
                if (pred_info->end_state != need_state) {
-                       ir_node *insert_point = get_end_of_block_insertion_point(pred);
+                       ir_node *insert_point = get_end_of_block_insertion_point(pred);
 
 
                        DBG((dbg, LEVEL_3, "  Creating reload for %+F\n", need_state));