X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelive_t.h;h=4a79d38deaaf4afac07f764cacfd220c45491e87;hb=6e998f91ca26b38b9022cfe5f3316bd3074bf39f;hp=57bcc837d62f74696bf51cafbcf15544c95799c3;hpb=d26125ca5720072a4975d37c0a17f7ad6c18de2d;p=libfirm

diff --git a/ir/be/belive_t.h b/ir/be/belive_t.h
index 57bcc837d..4a79d38de 100644
--- a/ir/be/belive_t.h
+++ b/ir/be/belive_t.h
@@ -1,62 +1,118 @@
-/**
- * Internal headers for liveness analysis.
- * @author Sebastian Hack
- * @date 6.12.2004
+/*
+ * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
  */
 
-#ifndef _BELIVE_T_H
-#define _BELIVE_T_H
+/**
+ * @file
+ * @brief       Internal headers for liveness analysis.
+ * @author      Sebastian Hack
+ * @date        06.12.2004
+ * @version     $Id$
+ */
+#ifndef FIRM_BE_BELIVE_T_H
+#define FIRM_BE_BELIVE_T_H
 
-#include "config.h"
+#include "irgraph_t.h"
+#include "irphase_t.h"
+#include "irhooks.h"
 
 #include "pset.h"
+#include "bitset.h"
+
+#include "belive.h"
+
+struct _be_lv_t {
+	ir_phase ph;
+	ir_graph *irg;
+	bitset_t *nodes;
+	hook_entry_t hook_info;
+};
 
-typedef struct _block_live_info_t {
-	pset *in;
-	pset *out;
-} block_live_info_t;
+struct _be_lv_info_node_t {
+	unsigned idx;
+	unsigned flags;
+};
 
-typedef struct _node_live_info_t {
-	unsigned last_use_in_block : 1;
-} node_live_info_t;
+struct _be_lv_info_head_t {
+	unsigned n_members;
+	unsigned n_size;
+};
 
-typedef struct _live_info_t {
+struct _be_lv_info_t {
 	union {
-		block_live_info_t block;
-		node_live_info_t node;
-	} v;
-} live_info_t;
+		struct _be_lv_info_head_t head;
+		struct _be_lv_info_node_t node;
+	} u;
+};
 
-extern size_t live_irn_data_offset;
+static INLINE int _be_lv_next_irn(const struct _be_lv_t *lv, const ir_node *bl, unsigned flags, int i)
+{
+	struct _be_lv_info_t *arr = phase_get_irn_data(&lv->ph, bl);
 
-#define get_irn_live_info(irn) get_irn_data(irn, live_info_t, live_irn_data_offset)
-#define get_live_info_irn(inf) get_irn_data_base(inf, live_irn_data_offset)
+	if (arr) {
+		int n_members = (int) arr[0].u.head.n_members;
 
-#define get_block_live_info(irn) &(get_irn_live_info(irn)->v.block)
+		while(i < n_members) {
+			if(arr[i + 1].u.node.flags & flags) {
+				return i;
+			}
+			++i;
+		}
+	}
 
-static INLINE int _is_live_in(const ir_node *block, const ir_node *irn)
-{
-	block_live_info_t *info = get_block_live_info(block);
+	return -1;
+}
 
-	assert(is_Block(block) && "Need a block here");
-	return pset_find_ptr(info->in, irn) != NULL;
+static INLINE ir_node *_be_lv_get_irn(const struct _be_lv_t *lv, const ir_node *bl, int i)
+{
+	struct _be_lv_info_t *arr = phase_get_irn_data(&lv->ph, bl);
+	return get_idx_irn(lv->irg, arr[i + 1].u.node.idx);
 }
 
-static INLINE int _is_live_out(const ir_node *block, const ir_node *irn)
+struct _be_lv_info_node_t *be_lv_get(const struct _be_lv_t *li, const ir_node *bl, const ir_node *irn);
+
+static INLINE int _be_is_live_xxx(const struct _be_lv_t *li, const ir_node *block, const ir_node *irn, unsigned flags)
 {
-	block_live_info_t *info = get_block_live_info(block);
+	struct _be_lv_info_node_t *info = be_lv_get(li, block, irn);
+	return info ? (info->flags & flags) != 0 : 0;
+}
+
+#define be_lv_foreach(lv, bl, flags, i) \
+	for (i = _be_lv_next_irn(lv, bl, flags, 0); i >= 0; i = _be_lv_next_irn(lv, bl, flags, i + 1))
+
 
-	assert(is_Block(block) && "Need a block here");
-	return pset_find_ptr(info->out, irn) != NULL;
+static INLINE pset *_be_lv_pset_put(const struct _be_lv_t *lv, const ir_node *block, int state, pset *s)
+{
+	int i;
+	be_lv_foreach(lv, block, state, i)
+		pset_insert_ptr(s, _be_lv_get_irn(lv, block, i));
+	return s;
 }
 
-#define is_live_in(block,irn) _is_live_in(block, irn)
-#define is_live_out(block,irn) _is_live_out(block, irn)
+#define be_lv_get_irn(lv, bl, i)      _be_lv_get_irn(lv, bl, i)
+#define be_lv_pset_put_in(lv, bl, s)  _be_lv_pset_put(lv, bl, be_lv_state_in, s)
+#define be_lv_pset_put_out(lv, bl, s) _be_lv_pset_put(lv, bl, be_lv_state_out, s)
+#define be_lv_pset_put_end(lv, bl, s) _be_lv_pset_put(lv, bl, be_lv_state_end, s)
 
-/**
- * Initialize the liveness module.
- * To be called from be_init().
- */
-void be_liveness_init(void);
+#define be_is_live_in(lv, bl, irn)    _be_is_live_xxx(lv, bl, irn, be_lv_state_in)
+#define be_is_live_end(lv, bl, irn)   _be_is_live_xxx(lv, bl, irn, be_lv_state_end)
+#define be_is_live_out(lv, bl, irn)   _be_is_live_xxx(lv, bl, irn, be_lv_state_out)
+
+#define be_lv_has_info_about(lv, irn) bitset_is_set((lv)->nodes, get_irn_idx(irn))
 
-#endif
+#endif /* FIRM_BE_BELIVE_T_H */