mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
dbf1aa8f72
Now, if a dag is attached to a statement block, it will be included in the flowgraph with that statement block.
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
|
|
dags.h
|
|
|
|
DAG representation of basic blocks
|
|
|
|
Copyright (C) 2012 Bill Currie <bill@taniwha.org>
|
|
|
|
Author: Bill Currie <bill@taniwha.org>
|
|
Date: 2012/05/08
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
#ifndef dags_h
|
|
#define dags_h
|
|
|
|
/** \defgroup qfcc_dags DAG building
|
|
\ingroup qfcc
|
|
*/
|
|
//@{
|
|
|
|
typedef struct daglabel_s {
|
|
struct daglabel_s *next;
|
|
struct daglabel_s **prev;
|
|
const char *opcode; ///< not if op
|
|
struct operand_s *op; ///< not if opcode;
|
|
struct dagnode_s *dagnode; ///< node with which this label is associated
|
|
} daglabel_t;
|
|
|
|
typedef struct dagnode_s {
|
|
struct dagnode_s *next;
|
|
int print_count; ///< used to avoid double printing nodes
|
|
daglabel_t *label; ///< ident/const if leaf node, or operator
|
|
/// \name child nodes
|
|
/// All three child nodes will be null if this node is a leaf
|
|
/// If \a a is null, both \a b and \a c must also be null. If \a is not
|
|
/// null, either \a b or \a c or even both may be non-null. Both \a b and
|
|
/// \a c being non-null is reserved for the few opcodes that take three
|
|
/// inputs (rcall2+, 3 op state, indirect move, indexed pointer assignment)
|
|
/// \a b and \a c are used to help keep track of the original statement
|
|
/// operands
|
|
//@{
|
|
struct dagnode_s *a;
|
|
struct dagnode_s *b;
|
|
struct dagnode_s *c;
|
|
//@}
|
|
daglabel_t *identifiers; ///< list of identifiers with value of this node
|
|
} dagnode_t;
|
|
|
|
const char *daglabel_string (daglabel_t *label);
|
|
struct dstring_s;
|
|
void print_dag (struct dstring_s *dstr, dagnode_t *node);
|
|
struct sblock_s;
|
|
|
|
/** Make a dag for a single basic block.
|
|
|
|
\param block The basic block for which the dag will be created.
|
|
\return The dag representing the basic block.
|
|
*/
|
|
dagnode_t *make_dag (const struct sblock_s *block);
|
|
|
|
//@}
|
|
|
|
#endif//dags_h
|