/*
- * 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.
*
* @author Matthias Braun
* @date 5.2005
* @version $Id$
- * @summary
+ * @brief
* Alternative algorithm for computing extended basic blocks (using out edges
* and execution frequencies)
*/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include "config.h"
#include "irextbb_t.h"
#include "irgwalk.h"
*/
static ir_extblk *allocate_extblk(ir_node *block, env_t *env)
{
- ir_extblk *extblk = obstack_alloc(env->obst, sizeof(*extblk));
+ ir_extblk *extblk = OALLOC(env->obst, ir_extblk);
extblk->kind = k_ir_extblk;
extblk->visited = 1;
{
ir_extblk *extblk;
- if (irn_visited(block))
+ if (irn_visited_else_mark(block))
return;
extblk = allocate_extblk(block, env);
- mark_irn_visited(block);
pick_successor(block, extblk, env);
}
obstack_free(irg->extbb_obst, NULL);
}
else {
- irg->extbb_obst = xmalloc(sizeof(*irg->extbb_obst));
+ irg->extbb_obst = XMALLOC(struct obstack);
}
obstack_init(irg->extbb_obst);
/* the end block needs a extbb assigned (even for endless loops) */
endblock = get_irg_end_block(irg);
- if (! irn_visited(endblock)) {
- create_extblk(endblock, &env);
- }
+ create_extblk(endblock, &env);
/*
Ok, we have now the list of all extended blocks starting with env.head