make IS_ macros return 0 or 1

[libfirm] / ir / be / besched.h

diff --git a/ir/be/besched.h b/ir/be/besched.h
index 29d4b38..c7fbab2 100644 (file)
--- a/ir/be/besched.h
+++ b/ir/be/besched.h
@@ -34,6 +34,11 @@
 
 void be_sched_dump(FILE *f, ir_graph *irg);
 
+/**
+ * returns the time step of a node. Each node in a block has a timestep
+ * unique to that block. a node schedule before another node has a lower
+ * timestep than this node.
+ */
 int     sched_get_time_step(const ir_node *irn);
 int     sched_has_next(const ir_node *irn);
 int     sched_has_prev(const ir_node *irn);
@@ -42,8 +47,8 @@ ir_node *sched_next(const ir_node *irn);
 ir_node *sched_prev(const ir_node *irn);
 ir_node *sched_first(const ir_node *block);
 ir_node *sched_last(const ir_node *block);
-ir_node *sched_add_before(ir_node *before, ir_node *irn);
-ir_node *sched_add_after(ir_node *before, ir_node *irn);
+void    sched_add_before(ir_node *before, ir_node *irn);
+void    sched_add_after(ir_node *after, ir_node *irn);
 void    sched_init_block(ir_node *block);
 void    sched_reset(ir_node *node);
 void    sched_remove(ir_node *irn);