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/* cuc.h -- OpenRISC Custom Unit Compiler, main header file
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/* cuc.h -- OpenRISC Custom Unit Compiler, main header file
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* Copyright (C) 2002 Marko Mlinar, markom@opencores.org
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*
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* This file is part of OpenRISC 1000 Architectural Simulator.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef __DATAF_H__
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Copyright (C) 2002 Marko Mlinar, markom@opencores.org
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#define __DATAF_H__
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Copyright (C) 2008 Embecosm Limited
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along
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with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This program is commented throughout in a fashion suitable for processing
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with Doxygen. */
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#ifndef CUC__H
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#define CUC__H
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/* Package includes */
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#include "abstract.h"
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/* Maximum number of instructions per function */
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/* Maximum number of instructions per function */
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#define MAX_INSNS 0x10000
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#define MAX_INSNS 0x10000
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#define MAX_BB 0x1000
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#define MAX_BB 0x1000
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#define MAX_REGS 34
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#define MAX_REGS 34
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extern int cuc_debug;
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extern int cuc_debug;
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/* Temporary registers by software convention */
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/* Temporary registers by software convention */
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extern const int caller_saved[MAX_REGS];
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extern const int caller_saved[MAX_REGS];
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typedef struct _dep_list_t {
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typedef struct _dep_list_t
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{
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unsigned long ref;
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unsigned long ref;
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struct _dep_list_t *next;
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struct _dep_list_t *next;
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} dep_list;
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} dep_list;
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/* Shared list, if marked dead, entry is not used */
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/* Shared list, if marked dead, entry is not used */
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typedef struct _csm_list {
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typedef struct _csm_list
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{
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int ref;
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int ref;
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int cnt;
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int cnt;
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int cmovs;
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int cmovs;
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double size, osize;
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double size, osize;
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int cmatch;
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int cmatch;
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struct _csm_list *from;
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struct _csm_list *from;
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struct _csm_list *next;
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struct _csm_list *next;
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} cuc_shared_list;
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} cuc_shared_list;
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/* Shared resource item definition */
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/* Shared resource item definition */
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typedef struct {
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typedef struct
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{
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int ref;
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int ref;
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int cmatch;
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int cmatch;
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} cuc_shared_item;
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} cuc_shared_item;
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/* Implementation specific timings */
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/* Implementation specific timings */
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typedef struct {
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typedef struct
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{
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int b; /* Basic block # this timing is referring to */
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int b; /* Basic block # this timing is referring to */
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int preroll; /* How many times was this BB pre/unrolled */
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int preroll; /* How many times was this BB pre/unrolled */
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int unroll;
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int unroll;
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int nshared;
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int nshared;
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cuc_shared_item *shared; /* List of shared resources */
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cuc_shared_item *shared; /* List of shared resources */
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int new_time;
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int new_time;
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double size;
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double size;
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} cuc_timings;
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} cuc_timings;
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/* Instructionn entity */
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/* Instructionn entity */
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typedef struct {
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typedef struct
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{
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int type; /* type of the instruction */
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int type; /* type of the instruction */
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int index; /* Instruction index */
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int index; /* Instruction index */
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int opt[MAX_OPERANDS]; /* operand types */
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int opt[MAX_OPERANDS]; /* operand types */
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unsigned long op[MAX_OPERANDS]; /* operand values */
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unsigned long op[MAX_OPERANDS]; /* operand values */
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dep_list *dep; /* instruction dependencies */
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dep_list *dep; /* instruction dependencies */
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unsigned long max; /* max result value */
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unsigned long max; /* max result value */
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int tmp;
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int tmp;
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} cuc_insn;
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} cuc_insn;
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/* Basic block entity */
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/* Basic block entity */
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typedef struct {
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typedef struct
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{
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unsigned long type; /* Type of the bb */
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unsigned long type; /* Type of the bb */
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int first, last; /* Where this block lies */
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int first, last; /* Where this block lies */
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int prev[2], next[2];
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int prev[2], next[2];
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int tmp;
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int tmp;
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cuc_insn *insn; /* Instructions lie here */
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cuc_insn *insn; /* Instructions lie here */
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cuc_timings *tim;
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cuc_timings *tim;
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int selected_tim; /* Selected option, -1 if none */
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int selected_tim; /* Selected option, -1 if none */
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} cuc_bb;
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} cuc_bb;
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/* Function entity */
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/* Function entity */
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typedef struct _cuc_func {
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typedef struct _cuc_func
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{
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/* Basic blocks */
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/* Basic blocks */
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int num_bb;
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int num_bb;
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cuc_bb bb[MAX_BB];
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cuc_bb bb[MAX_BB];
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int saved_regs[MAX_REGS];/* Whether this register was saved */
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int saved_regs[MAX_REGS];/* Whether this register was saved */
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int lur[MAX_REGS]; /* Location of last use */
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int lur[MAX_REGS]; /* Location of last use */
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/* Common subexpression matching -- resource sharing, analysis pass */
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/* Common subexpression matching -- resource sharing, analysis pass */
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void csm (cuc_func *f);
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void csm (cuc_func *f);
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/* Common subexpression matching -- resource sharing, generation pass */
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/* Common subexpression matching -- resource sharing, generation pass */
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void csm_gen (cuc_func *f, cuc_func *rf, cuc_shared_item *shared, int nshared);
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void csm_gen (cuc_func * f, cuc_func * rf, cuc_shared_item * shared,
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int nshared);
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/* Set the BB limits */
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/* Set the BB limits */
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void detect_bb (cuc_func *func);
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void detect_bb (cuc_func *func);
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/* Optimize basic blocks */
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/* Optimize basic blocks */
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/* Cuts the tree and marks registers */
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/* Cuts the tree and marks registers */
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void mark_cut (cuc_func *f);
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void mark_cut (cuc_func *f);
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/* Unroll loop b times times and return new function. Original
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/* Unroll loop b times times and return new function. Original
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function is unmodified. */
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function is unmodified. */
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cuc_func *preunroll_loop (cuc_func *func, int b, int preroll, int unroll, char *bb_filename);
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cuc_func *preunroll_loop (cuc_func * func, int b, int preroll, int unroll,
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char *bb_filename);
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/* Clean memory and data dependencies */
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/* Clean memory and data dependencies */
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void clean_deps (cuc_func *func);
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void clean_deps (cuc_func *func);
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/* Schedule memory accesses
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/* Schedule memory accesses
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0 - exact; 1 - strong; 2 - weak; 3 - none */
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0 - exact; 1 - strong; 2 - weak; 3 - none */
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int schedule_memory (cuc_func *func, int otype);
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int schedule_memory (cuc_func *func, int otype);
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/* Generates verilog file out of insn dataflow */
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void output_verilog (cuc_func *func, char *filename, char *funcname);
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/* Recalculates bb[].cnt values, based on generated profile file */
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/* Recalculates bb[].cnt values, based on generated profile file */
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void recalc_cnts (cuc_func *f, char *bb_filename);
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void recalc_cnts (cuc_func *f, char *bb_filename);
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/* Calculate timings */
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/* Calculate timings */
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void analyse_timings (cuc_func *func, cuc_timings *timings);
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void analyse_timings (cuc_func *func, cuc_timings *timings);
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void add_latches(cuc_func *f);
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void add_latches(cuc_func *f);
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/* split the BB, based on the group numbers in .tmp */
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/* split the BB, based on the group numbers in .tmp */
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void expand_bb (cuc_func *f, int b);
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void expand_bb (cuc_func *f, int b);
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void generate_main(int nfuncs, cuc_func **f, char *filename);
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void add_dep(dep_list **list, int dep);
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void add_dep(dep_list **list, int dep);
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void dispose_list(dep_list **list);
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void dispose_list(dep_list **list);
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void main_cuc(char *filename);
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void main_cuc(char *filename);
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void add_data_dep(cuc_func *f);
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void add_data_dep(cuc_func *f);
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#endif /* __DATAF_H__ */
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void reg_cuc_sec ();
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#endif /* CUC__H */
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