simplified code

[libfirm] / ir / be / benode_t.h

diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h
index ff0af86..ae58eb0 100644 (file)
--- a/ir/be/benode_t.h
+++ b/ir/be/benode_t.h
@@ -157,6 +157,20 @@ void be_set_Copy_op(ir_node *cpy, ir_node *op);
  * Make a new Perm node.
  */
 ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]);
+
+/**
+ * Reduce a Perm.
+ * Basically, we provide a map to remap the Perm's arguments. If an entry in the
+ * map is -1, the argument gets deleted.
+ * This function takes care, that the register data and the input array reflects
+ * the changes described by the map.
+ * This is needed by the Perm optimization/movement in belower.c, see push_through_perm().
+ * @param perm     The perm node.
+ * @param new_size The new number of arguments (must be smaller or equal to the current one).
+ * @param map      A map assigning each operand a new index (or -1 to indicate deletion).
+ */
+void be_Perm_reduce(ir_node *perm, int new_size, int *map);
+
 /**
  * Create a new MemPerm node.
  */
@@ -195,8 +209,12 @@ enum {
        be_pos_FrameAddr_ptr = 0
 };
 
+/** Create a new FrameAddr node. */
 ir_node *be_new_FrameAddr(const arch_register_class_t *cls_frame, ir_graph *irg, ir_node *bl, ir_node *frame, ir_entity *ent);
 
+/** Return the frame input of a FrameAddr node. */
+ir_node *be_get_FrameAddr_frame(ir_node *node);
+
 /**
  * Position numbers for the be_AddSP inputs
  */
@@ -316,7 +334,18 @@ typedef enum {
 } pn_be_Call;
 
 /**
- * Construct a new be_Call
+ * Construct a new be_Call.
+ *
+ * @param dbg      debug info
+ * @param irg      the graph where the call is placed
+ * @param bl       the block where the call is placed
+ * @param mem      the memory input of the call
+ * @param sp       the stack pointer input of the call
+ * @param ptr      the address of the called function, if immediate call set to sp
+ * @param n_outs   the number of outcoming values from this call
+ * @param n        the number of (register) inputs of this call
+ * @param in       the (register) inputs of this call
+ * @param call_tp  the call type of this call
  */
 ir_node *be_new_Call(dbg_info *dbg, ir_graph *irg, ir_node *bl, ir_node *mem, ir_node *sp, ir_node *ptr,
                      int n_outs, int n, ir_node *in[], ir_type *call_tp);