X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelive_t.h;h=a725c7ec90febde13416818127422bb95cd35d01;hb=bc7b5ee69d084e629590a6977b79a2fab7cd1aa1;hp=d46af6d7d6a0855503d9c90eff4dff92e464f6bf;hpb=10f8d2d5dd9f9fef27212b9bdad08e122803c46f;p=libfirm

diff --git a/ir/be/belive_t.h b/ir/be/belive_t.h
index d46af6d7d..a725c7ec9 100644
--- a/ir/be/belive_t.h
+++ b/ir/be/belive_t.h
@@ -1,103 +1,144 @@
+/*
+ * Copyright (C) 1995-2008 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.
+ */
+
 /**
- * Internal headers for liveness analysis.
- * @author Sebastian Hack
- * @date 6.12.2004
+ * @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
 
-#ifndef _BELIVE_T_H
-#define _BELIVE_T_H
+#include "irgraph_t.h"
+#include "irphase_t.h"
+#include "irhooks.h"
+#include "dfs.h"
+#include "statev.h"
 
-#include "config.h"
+#include "pset.h"
+#include "bitset.h"
 
 #include "belive.h"
-#include "pset.h"
 
-typedef struct _block_live_info_t {
-	pset *in; 				/**< The set of all values live in at that block. */
-	pset *out;				/**< The set of all values live out. */
-	pset *end;				/**< The set of all values live at the end
-											of the block (contains all live out). */
-} block_live_info_t;
+#define USE_LIVE_CHK
 
-typedef struct _node_live_info_t {
-	int is_phi_op; 		/**< Marks the node as a phi operand. */
-} node_live_info_t;
+#ifdef USE_LIVE_CHK
+#include "irlivechk.h"
+#endif
 
-typedef struct _live_info_t {
-	union {
-		block_live_info_t block;
-		node_live_info_t node;
-	} v;
-} live_info_t;
+struct be_irg_t;
+
+struct _be_lv_t {
+	ir_phase ph;
+	ir_graph *irg;
+	dfs_t *dfs;
+	const struct be_irg_t *birg;
+	bitset_t *nodes;
+	hook_entry_t hook_info;
+#ifdef USE_LIVE_CHK
+	lv_chk_t *lvc;
+#endif
+};
 
-extern size_t live_irn_data_offset;
+struct _be_lv_info_node_t {
+	unsigned idx;
+	unsigned flags;
+};
 
-#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)
+struct _be_lv_info_head_t {
+	unsigned n_members;
+	unsigned n_size;
+};
 
-#define get_block_live_info(irn) (&(get_irn_live_info(irn)->v.block))
-#define get_node_live_info(irn) (&(get_irn_live_info(irn)->v.node))
+struct _be_lv_info_t {
+	union {
+		struct _be_lv_info_head_t head;
+		struct _be_lv_info_node_t node;
+	} u;
+};
 
-static INLINE int _is_phi_operand(const ir_node *irn)
+static inline int _be_lv_next_irn(const struct _be_lv_t *lv, const ir_node *bl, unsigned flags, int i)
 {
-	assert(!is_Block(irn) && "No block node allowed here");
-	return get_node_live_info(irn)->is_phi_op;
-}
+	struct _be_lv_info_t *arr = phase_get_irn_data(&lv->ph, bl);
 
-static INLINE int _is_live_in(const ir_node *block, const ir_node *irn)
-{
-	block_live_info_t *info = get_block_live_info(block);
+	if (arr) {
+		int n_members = (int) arr[0].u.head.n_members;
+
+		while(i < n_members) {
+			if(arr[i + 1].u.node.flags & flags) {
+				return i;
+			}
+			++i;
+		}
+	}
 
-	assert(is_Block(block) && "Need a block here");
-	return pset_find_ptr(info->in, irn) != NULL;
+	return -1;
 }
 
-static INLINE int _is_live_out(const ir_node *block, const ir_node *irn)
+static inline ir_node *_be_lv_get_irn(const struct _be_lv_t *lv, const ir_node *bl, int i)
 {
-	block_live_info_t *info = get_block_live_info(block);
-
-	assert(is_Block(block) && "Need a block here");
-	return pset_find_ptr(info->out, irn) != NULL;
+	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_end(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);
+	int res;
 
-	assert(is_Block(block) && "Need a block here");
-	return pset_find_ptr(info->end, irn) != NULL;
-}
+	if (li->nodes) {
+		struct _be_lv_info_node_t *info = be_lv_get(li, block, irn);
+		res = info ? (info->flags & flags) != 0 : 0;
+	}
 
-static INLINE pset *_get_live_in(const ir_node *block)
-{
-	assert(is_Block(block) && "Need a block here");
-	return get_block_live_info(block)->in;
-}
+#ifdef USE_LIVE_CHK
+	else
+		res = (lv_chk_bl_xxx(li->lvc, block, irn) & flags) != 0;
+#endif /* USE_LIVE_CHK */
 
-static INLINE pset *_get_live_out(const ir_node *block)
-{
-	assert(is_Block(block) && "Need a block here");
-	return get_block_live_info(block)->out;
+	return res;
 }
 
-static INLINE pset *_get_live_end(const ir_node *block)
+#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))
+
+
+static inline pset *_be_lv_pset_put(const struct _be_lv_t *lv, const ir_node *block, int state, pset *s)
 {
-	assert(is_Block(block) && "Need a block here");
-	return get_block_live_info(block)->end;
+	int i;
+	be_lv_foreach(lv, block, state, i)
+		pset_insert_ptr(s, _be_lv_get_irn(lv, block, i));
+	return s;
 }
 
-#define is_phi_operand(irn)			_is_phi_operand(irn)
-#define is_live_in(bl,irn) 			_is_live_in(bl, irn)
-#define is_live_out(bl,irn) 		_is_live_out(bl, irn)
-#define is_live_end(bl,irn) 		_is_live_end(bl, irn)
-#define get_live_in(bl)					_get_live_in(bl)
-#define get_live_out(bl)				_get_live_out(bl)
-#define get_live_end(bl)				_get_live_end(bl)
+#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)
 
-#endif
+#define be_lv_has_info_about(lv, irn) bitset_is_set((lv)->nodes, get_irn_idx(irn))
+
+#endif /* FIRM_BE_BELIVE_T_H */