Partially undo r20786: Emit ret $0 especially when its BB is only reached by a fallt...

[libfirm] / ir / be / bessaconstr.h

diff --git a/ir/be/bessaconstr.h b/ir/be/bessaconstr.h
index 745dc70..ab08c76 100644 (file)
--- a/ir/be/bessaconstr.h
+++ b/ir/be/bessaconstr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -29,11 +29,11 @@
  * to their closest copy while introducing phis as necessary.
  *
  * Algorithm: Mark all blocks in the iterated dominance frontiers of the value
- * and it's copies. Link the copies ordered by dominance to the blocks.  The
- * we search for each use all all definitions in the current block, if none is
+ * and it's copies. Link the copies ordered by dominance to the blocks.  Then
+ * we search for each use all definitions in the current block, if none is
  * found, then we search one in the immediate dominator. If we are in a block
- * of the dominance frontier, create a phi and search do the same search for
- * the phi arguments.
+ * of the dominance frontier, create a phi and do the same search for all
+ * phi arguments.
  *
  * A copy in this context means, that you want to introduce several new
  * abstract values (in Firm: nodes) for which you know, that they
@@ -49,11 +49,11 @@
 #ifndef FIRM_BE_BESSACONSTR_H
 #define FIRM_BE_BESSACONSTR_H
 
-#include <stdlib.h>
+#include "firm_types.h"
 #include "bedomfront.h"
-#include "irnode.h"
 #include "irnodeset.h"
 #include "belive.h"
+#include "bitset.h"
 #include "beirg.h"
 #include "pdeq.h"
 
@@ -68,7 +68,10 @@ typedef struct be_ssa_construction_env_t {
 } be_ssa_construction_env_t;
 
 /**
- * Initializes an ssa construction environment.
+ * Initializes an SSA construction environment.
+ *
+ * @param env    an SSA empty construction environment
+ * @param birg
  */
 void be_ssa_construction_init(be_ssa_construction_env_t *env, be_irg_t *birg);