/* Generate code from machine description to emit insns as rtl.
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/* Generate code from machine description to emit insns as rtl.
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Copyright (C) 1987, 1988, 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
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Copyright (C) 1987, 1988, 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
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2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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|
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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Software Foundation; either version 3, or (at your option) any later
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version.
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version.
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|
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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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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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#include "bconfig.h"
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#include "bconfig.h"
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#include "system.h"
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#include "system.h"
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#include "coretypes.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "tm.h"
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#include "rtl.h"
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#include "rtl.h"
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#include "errors.h"
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#include "errors.h"
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#include "gensupport.h"
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#include "gensupport.h"
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static int max_opno;
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static int max_opno;
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static int max_dup_opno;
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static int max_dup_opno;
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static int max_scratch_opno;
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static int max_scratch_opno;
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static int insn_code_number;
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static int insn_code_number;
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static int insn_index_number;
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static int insn_index_number;
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|
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/* Data structure for recording the patterns of insns that have CLOBBERs.
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/* Data structure for recording the patterns of insns that have CLOBBERs.
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We use this to output a function that adds these CLOBBERs to a
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We use this to output a function that adds these CLOBBERs to a
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previously-allocated PARALLEL expression. */
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previously-allocated PARALLEL expression. */
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struct clobber_pat
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struct clobber_pat
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{
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{
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struct clobber_ent *insns;
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struct clobber_ent *insns;
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rtx pattern;
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rtx pattern;
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int first_clobber;
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int first_clobber;
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struct clobber_pat *next;
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struct clobber_pat *next;
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int has_hard_reg;
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int has_hard_reg;
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} *clobber_list;
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} *clobber_list;
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|
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/* Records one insn that uses the clobber list. */
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/* Records one insn that uses the clobber list. */
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|
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struct clobber_ent
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struct clobber_ent
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{
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{
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int code_number; /* Counts only insns. */
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int code_number; /* Counts only insns. */
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struct clobber_ent *next;
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struct clobber_ent *next;
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};
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};
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|
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static void max_operand_1 (rtx);
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static void max_operand_1 (rtx);
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static int max_operand_vec (rtx, int);
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static int max_operand_vec (rtx, int);
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static void print_code (RTX_CODE);
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static void print_code (RTX_CODE);
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static void gen_exp (rtx, enum rtx_code, char *);
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static void gen_exp (rtx, enum rtx_code, char *);
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static void gen_insn (rtx, int);
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static void gen_insn (rtx, int);
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static void gen_expand (rtx);
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static void gen_expand (rtx);
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static void gen_split (rtx);
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static void gen_split (rtx);
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static void output_add_clobbers (void);
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static void output_add_clobbers (void);
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static void output_added_clobbers_hard_reg_p (void);
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static void output_added_clobbers_hard_reg_p (void);
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static void gen_rtx_scratch (rtx, enum rtx_code);
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static void gen_rtx_scratch (rtx, enum rtx_code);
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static void output_peephole2_scratches (rtx);
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static void output_peephole2_scratches (rtx);
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static void
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static void
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max_operand_1 (rtx x)
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max_operand_1 (rtx x)
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{
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{
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RTX_CODE code;
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RTX_CODE code;
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int i;
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int i;
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int len;
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int len;
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const char *fmt;
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const char *fmt;
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|
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if (x == 0)
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if (x == 0)
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return;
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return;
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code = GET_CODE (x);
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code = GET_CODE (x);
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if (code == MATCH_OPERAND || code == MATCH_OPERATOR
|
if (code == MATCH_OPERAND || code == MATCH_OPERATOR
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|| code == MATCH_PARALLEL)
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|| code == MATCH_PARALLEL)
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max_opno = MAX (max_opno, XINT (x, 0));
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max_opno = MAX (max_opno, XINT (x, 0));
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if (code == MATCH_DUP || code == MATCH_OP_DUP || code == MATCH_PAR_DUP)
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if (code == MATCH_DUP || code == MATCH_OP_DUP || code == MATCH_PAR_DUP)
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max_dup_opno = MAX (max_dup_opno, XINT (x, 0));
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max_dup_opno = MAX (max_dup_opno, XINT (x, 0));
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if (code == MATCH_SCRATCH)
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if (code == MATCH_SCRATCH)
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max_scratch_opno = MAX (max_scratch_opno, XINT (x, 0));
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max_scratch_opno = MAX (max_scratch_opno, XINT (x, 0));
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|
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fmt = GET_RTX_FORMAT (code);
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fmt = GET_RTX_FORMAT (code);
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len = GET_RTX_LENGTH (code);
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len = GET_RTX_LENGTH (code);
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for (i = 0; i < len; i++)
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for (i = 0; i < len; i++)
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{
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{
|
if (fmt[i] == 'e' || fmt[i] == 'u')
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if (fmt[i] == 'e' || fmt[i] == 'u')
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max_operand_1 (XEXP (x, i));
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max_operand_1 (XEXP (x, i));
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else if (fmt[i] == 'E')
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else if (fmt[i] == 'E')
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{
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{
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int j;
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int j;
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for (j = 0; j < XVECLEN (x, i); j++)
|
for (j = 0; j < XVECLEN (x, i); j++)
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max_operand_1 (XVECEXP (x, i, j));
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max_operand_1 (XVECEXP (x, i, j));
|
}
|
}
|
}
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}
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}
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}
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static int
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static int
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max_operand_vec (rtx insn, int arg)
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max_operand_vec (rtx insn, int arg)
|
{
|
{
|
int len = XVECLEN (insn, arg);
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int len = XVECLEN (insn, arg);
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int i;
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int i;
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|
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max_opno = -1;
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max_opno = -1;
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max_dup_opno = -1;
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max_dup_opno = -1;
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max_scratch_opno = -1;
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max_scratch_opno = -1;
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for (i = 0; i < len; i++)
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for (i = 0; i < len; i++)
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max_operand_1 (XVECEXP (insn, arg, i));
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max_operand_1 (XVECEXP (insn, arg, i));
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return max_opno + 1;
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return max_opno + 1;
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}
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}
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static void
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static void
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print_code (RTX_CODE code)
|
print_code (RTX_CODE code)
|
{
|
{
|
const char *p1;
|
const char *p1;
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for (p1 = GET_RTX_NAME (code); *p1; p1++)
|
for (p1 = GET_RTX_NAME (code); *p1; p1++)
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putchar (TOUPPER(*p1));
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putchar (TOUPPER(*p1));
|
}
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}
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static void
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static void
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gen_rtx_scratch (rtx x, enum rtx_code subroutine_type)
|
gen_rtx_scratch (rtx x, enum rtx_code subroutine_type)
|
{
|
{
|
if (subroutine_type == DEFINE_PEEPHOLE2)
|
if (subroutine_type == DEFINE_PEEPHOLE2)
|
{
|
{
|
printf ("operand%d", XINT (x, 0));
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printf ("operand%d", XINT (x, 0));
|
}
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}
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else
|
else
|
{
|
{
|
printf ("gen_rtx_SCRATCH (%smode)", GET_MODE_NAME (GET_MODE (x)));
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printf ("gen_rtx_SCRATCH (%smode)", GET_MODE_NAME (GET_MODE (x)));
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}
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}
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}
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}
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/* Print a C expression to construct an RTX just like X,
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/* Print a C expression to construct an RTX just like X,
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substituting any operand references appearing within. */
|
substituting any operand references appearing within. */
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|
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static void
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static void
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gen_exp (rtx x, enum rtx_code subroutine_type, char *used)
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gen_exp (rtx x, enum rtx_code subroutine_type, char *used)
|
{
|
{
|
RTX_CODE code;
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RTX_CODE code;
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int i;
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int i;
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int len;
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int len;
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const char *fmt;
|
const char *fmt;
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|
|
if (x == 0)
|
if (x == 0)
|
{
|
{
|
printf ("NULL_RTX");
|
printf ("NULL_RTX");
|
return;
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return;
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}
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}
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|
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code = GET_CODE (x);
|
code = GET_CODE (x);
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|
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switch (code)
|
switch (code)
|
{
|
{
|
case MATCH_OPERAND:
|
case MATCH_OPERAND:
|
case MATCH_DUP:
|
case MATCH_DUP:
|
if (used)
|
if (used)
|
{
|
{
|
if (used[XINT (x, 0)])
|
if (used[XINT (x, 0)])
|
{
|
{
|
printf ("copy_rtx (operand%d)", XINT (x, 0));
|
printf ("copy_rtx (operand%d)", XINT (x, 0));
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return;
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return;
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}
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}
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used[XINT (x, 0)] = 1;
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used[XINT (x, 0)] = 1;
|
}
|
}
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printf ("operand%d", XINT (x, 0));
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printf ("operand%d", XINT (x, 0));
|
return;
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return;
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|
|
case MATCH_OP_DUP:
|
case MATCH_OP_DUP:
|
printf ("gen_rtx_fmt_");
|
printf ("gen_rtx_fmt_");
|
for (i = 0; i < XVECLEN (x, 1); i++)
|
for (i = 0; i < XVECLEN (x, 1); i++)
|
printf ("e");
|
printf ("e");
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printf (" (GET_CODE (operand%d), ", XINT (x, 0));
|
printf (" (GET_CODE (operand%d), ", XINT (x, 0));
|
if (GET_MODE (x) == VOIDmode)
|
if (GET_MODE (x) == VOIDmode)
|
printf ("GET_MODE (operand%d)", XINT (x, 0));
|
printf ("GET_MODE (operand%d)", XINT (x, 0));
|
else
|
else
|
printf ("%smode", GET_MODE_NAME (GET_MODE (x)));
|
printf ("%smode", GET_MODE_NAME (GET_MODE (x)));
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for (i = 0; i < XVECLEN (x, 1); i++)
|
for (i = 0; i < XVECLEN (x, 1); i++)
|
{
|
{
|
printf (",\n\t\t");
|
printf (",\n\t\t");
|
gen_exp (XVECEXP (x, 1, i), subroutine_type, used);
|
gen_exp (XVECEXP (x, 1, i), subroutine_type, used);
|
}
|
}
|
printf (")");
|
printf (")");
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return;
|
return;
|
|
|
case MATCH_OPERATOR:
|
case MATCH_OPERATOR:
|
printf ("gen_rtx_fmt_");
|
printf ("gen_rtx_fmt_");
|
for (i = 0; i < XVECLEN (x, 2); i++)
|
for (i = 0; i < XVECLEN (x, 2); i++)
|
printf ("e");
|
printf ("e");
|
printf (" (GET_CODE (operand%d)", XINT (x, 0));
|
printf (" (GET_CODE (operand%d)", XINT (x, 0));
|
printf (", %smode", GET_MODE_NAME (GET_MODE (x)));
|
printf (", %smode", GET_MODE_NAME (GET_MODE (x)));
|
for (i = 0; i < XVECLEN (x, 2); i++)
|
for (i = 0; i < XVECLEN (x, 2); i++)
|
{
|
{
|
printf (",\n\t\t");
|
printf (",\n\t\t");
|
gen_exp (XVECEXP (x, 2, i), subroutine_type, used);
|
gen_exp (XVECEXP (x, 2, i), subroutine_type, used);
|
}
|
}
|
printf (")");
|
printf (")");
|
return;
|
return;
|
|
|
case MATCH_PARALLEL:
|
case MATCH_PARALLEL:
|
case MATCH_PAR_DUP:
|
case MATCH_PAR_DUP:
|
printf ("operand%d", XINT (x, 0));
|
printf ("operand%d", XINT (x, 0));
|
return;
|
return;
|
|
|
case MATCH_SCRATCH:
|
case MATCH_SCRATCH:
|
gen_rtx_scratch (x, subroutine_type);
|
gen_rtx_scratch (x, subroutine_type);
|
return;
|
return;
|
|
|
case ADDRESS:
|
case ADDRESS:
|
fatal ("ADDRESS expression code used in named instruction pattern");
|
fatal ("ADDRESS expression code used in named instruction pattern");
|
|
|
case PC:
|
case PC:
|
printf ("pc_rtx");
|
printf ("pc_rtx");
|
return;
|
return;
|
case CLOBBER:
|
case CLOBBER:
|
if (REG_P (XEXP (x, 0)))
|
if (REG_P (XEXP (x, 0)))
|
{
|
{
|
printf ("gen_hard_reg_clobber (%smode, %i)", GET_MODE_NAME (GET_MODE (XEXP (x, 0))),
|
printf ("gen_hard_reg_clobber (%smode, %i)", GET_MODE_NAME (GET_MODE (XEXP (x, 0))),
|
REGNO (XEXP (x, 0)));
|
REGNO (XEXP (x, 0)));
|
return;
|
return;
|
}
|
}
|
break;
|
break;
|
|
|
case CC0:
|
case CC0:
|
printf ("cc0_rtx");
|
printf ("cc0_rtx");
|
return;
|
return;
|
|
|
case CONST_INT:
|
case CONST_INT:
|
if (INTVAL (x) == 0)
|
if (INTVAL (x) == 0)
|
printf ("const0_rtx");
|
printf ("const0_rtx");
|
else if (INTVAL (x) == 1)
|
else if (INTVAL (x) == 1)
|
printf ("const1_rtx");
|
printf ("const1_rtx");
|
else if (INTVAL (x) == -1)
|
else if (INTVAL (x) == -1)
|
printf ("constm1_rtx");
|
printf ("constm1_rtx");
|
else if (-MAX_SAVED_CONST_INT <= INTVAL (x)
|
else if (-MAX_SAVED_CONST_INT <= INTVAL (x)
|
&& INTVAL (x) <= MAX_SAVED_CONST_INT)
|
&& INTVAL (x) <= MAX_SAVED_CONST_INT)
|
printf ("const_int_rtx[MAX_SAVED_CONST_INT + (%d)]",
|
printf ("const_int_rtx[MAX_SAVED_CONST_INT + (%d)]",
|
(int) INTVAL (x));
|
(int) INTVAL (x));
|
else if (INTVAL (x) == STORE_FLAG_VALUE)
|
else if (INTVAL (x) == STORE_FLAG_VALUE)
|
printf ("const_true_rtx");
|
printf ("const_true_rtx");
|
else
|
else
|
{
|
{
|
printf ("GEN_INT (");
|
printf ("GEN_INT (");
|
printf (HOST_WIDE_INT_PRINT_DEC_C, INTVAL (x));
|
printf (HOST_WIDE_INT_PRINT_DEC_C, INTVAL (x));
|
printf (")");
|
printf (")");
|
}
|
}
|
return;
|
return;
|
|
|
case CONST_DOUBLE:
|
case CONST_DOUBLE:
|
/* These shouldn't be written in MD files. Instead, the appropriate
|
/* These shouldn't be written in MD files. Instead, the appropriate
|
routines in varasm.c should be called. */
|
routines in varasm.c should be called. */
|
gcc_unreachable ();
|
gcc_unreachable ();
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
printf ("gen_rtx_");
|
printf ("gen_rtx_");
|
print_code (code);
|
print_code (code);
|
printf (" (%smode", GET_MODE_NAME (GET_MODE (x)));
|
printf (" (%smode", GET_MODE_NAME (GET_MODE (x)));
|
|
|
fmt = GET_RTX_FORMAT (code);
|
fmt = GET_RTX_FORMAT (code);
|
len = GET_RTX_LENGTH (code);
|
len = GET_RTX_LENGTH (code);
|
for (i = 0; i < len; i++)
|
for (i = 0; i < len; i++)
|
{
|
{
|
if (fmt[i] == '0')
|
if (fmt[i] == '0')
|
break;
|
break;
|
printf (",\n\t");
|
printf (",\n\t");
|
switch (fmt[i])
|
switch (fmt[i])
|
{
|
{
|
case 'e': case 'u':
|
case 'e': case 'u':
|
gen_exp (XEXP (x, i), subroutine_type, used);
|
gen_exp (XEXP (x, i), subroutine_type, used);
|
break;
|
break;
|
|
|
case 'i':
|
case 'i':
|
printf ("%u", XINT (x, i));
|
printf ("%u", XINT (x, i));
|
break;
|
break;
|
|
|
case 's':
|
case 's':
|
printf ("\"%s\"", XSTR (x, i));
|
printf ("\"%s\"", XSTR (x, i));
|
break;
|
break;
|
|
|
case 'E':
|
case 'E':
|
{
|
{
|
int j;
|
int j;
|
printf ("gen_rtvec (%d", XVECLEN (x, i));
|
printf ("gen_rtvec (%d", XVECLEN (x, i));
|
for (j = 0; j < XVECLEN (x, i); j++)
|
for (j = 0; j < XVECLEN (x, i); j++)
|
{
|
{
|
printf (",\n\t\t");
|
printf (",\n\t\t");
|
gen_exp (XVECEXP (x, i, j), subroutine_type, used);
|
gen_exp (XVECEXP (x, i, j), subroutine_type, used);
|
}
|
}
|
printf (")");
|
printf (")");
|
break;
|
break;
|
}
|
}
|
|
|
default:
|
default:
|
gcc_unreachable ();
|
gcc_unreachable ();
|
}
|
}
|
}
|
}
|
printf (")");
|
printf (")");
|
}
|
}
|
|
|
/* Generate the `gen_...' function for a DEFINE_INSN. */
|
/* Generate the `gen_...' function for a DEFINE_INSN. */
|
|
|
static void
|
static void
|
gen_insn (rtx insn, int lineno)
|
gen_insn (rtx insn, int lineno)
|
{
|
{
|
int operands;
|
int operands;
|
int i;
|
int i;
|
|
|
/* See if the pattern for this insn ends with a group of CLOBBERs of (hard)
|
/* See if the pattern for this insn ends with a group of CLOBBERs of (hard)
|
registers or MATCH_SCRATCHes. If so, store away the information for
|
registers or MATCH_SCRATCHes. If so, store away the information for
|
later. */
|
later. */
|
|
|
if (XVEC (insn, 1))
|
if (XVEC (insn, 1))
|
{
|
{
|
int has_hard_reg = 0;
|
int has_hard_reg = 0;
|
|
|
for (i = XVECLEN (insn, 1) - 1; i > 0; i--)
|
for (i = XVECLEN (insn, 1) - 1; i > 0; i--)
|
{
|
{
|
if (GET_CODE (XVECEXP (insn, 1, i)) != CLOBBER)
|
if (GET_CODE (XVECEXP (insn, 1, i)) != CLOBBER)
|
break;
|
break;
|
|
|
if (REG_P (XEXP (XVECEXP (insn, 1, i), 0)))
|
if (REG_P (XEXP (XVECEXP (insn, 1, i), 0)))
|
has_hard_reg = 1;
|
has_hard_reg = 1;
|
else if (GET_CODE (XEXP (XVECEXP (insn, 1, i), 0)) != MATCH_SCRATCH)
|
else if (GET_CODE (XEXP (XVECEXP (insn, 1, i), 0)) != MATCH_SCRATCH)
|
break;
|
break;
|
}
|
}
|
|
|
if (i != XVECLEN (insn, 1) - 1)
|
if (i != XVECLEN (insn, 1) - 1)
|
{
|
{
|
struct clobber_pat *p;
|
struct clobber_pat *p;
|
struct clobber_ent *link = XNEW (struct clobber_ent);
|
struct clobber_ent *link = XNEW (struct clobber_ent);
|
int j;
|
int j;
|
|
|
link->code_number = insn_code_number;
|
link->code_number = insn_code_number;
|
|
|
/* See if any previous CLOBBER_LIST entry is the same as this
|
/* See if any previous CLOBBER_LIST entry is the same as this
|
one. */
|
one. */
|
|
|
for (p = clobber_list; p; p = p->next)
|
for (p = clobber_list; p; p = p->next)
|
{
|
{
|
if (p->first_clobber != i + 1
|
if (p->first_clobber != i + 1
|
|| XVECLEN (p->pattern, 1) != XVECLEN (insn, 1))
|
|| XVECLEN (p->pattern, 1) != XVECLEN (insn, 1))
|
continue;
|
continue;
|
|
|
for (j = i + 1; j < XVECLEN (insn, 1); j++)
|
for (j = i + 1; j < XVECLEN (insn, 1); j++)
|
{
|
{
|
rtx old = XEXP (XVECEXP (p->pattern, 1, j), 0);
|
rtx old = XEXP (XVECEXP (p->pattern, 1, j), 0);
|
rtx new = XEXP (XVECEXP (insn, 1, j), 0);
|
rtx new = XEXP (XVECEXP (insn, 1, j), 0);
|
|
|
/* OLD and NEW are the same if both are to be a SCRATCH
|
/* OLD and NEW are the same if both are to be a SCRATCH
|
of the same mode,
|
of the same mode,
|
or if both are registers of the same mode and number. */
|
or if both are registers of the same mode and number. */
|
if (! (GET_MODE (old) == GET_MODE (new)
|
if (! (GET_MODE (old) == GET_MODE (new)
|
&& ((GET_CODE (old) == MATCH_SCRATCH
|
&& ((GET_CODE (old) == MATCH_SCRATCH
|
&& GET_CODE (new) == MATCH_SCRATCH)
|
&& GET_CODE (new) == MATCH_SCRATCH)
|
|| (REG_P (old) && REG_P (new)
|
|| (REG_P (old) && REG_P (new)
|
&& REGNO (old) == REGNO (new)))))
|
&& REGNO (old) == REGNO (new)))))
|
break;
|
break;
|
}
|
}
|
|
|
if (j == XVECLEN (insn, 1))
|
if (j == XVECLEN (insn, 1))
|
break;
|
break;
|
}
|
}
|
|
|
if (p == 0)
|
if (p == 0)
|
{
|
{
|
p = XNEW (struct clobber_pat);
|
p = XNEW (struct clobber_pat);
|
|
|
p->insns = 0;
|
p->insns = 0;
|
p->pattern = insn;
|
p->pattern = insn;
|
p->first_clobber = i + 1;
|
p->first_clobber = i + 1;
|
p->next = clobber_list;
|
p->next = clobber_list;
|
p->has_hard_reg = has_hard_reg;
|
p->has_hard_reg = has_hard_reg;
|
clobber_list = p;
|
clobber_list = p;
|
}
|
}
|
|
|
link->next = p->insns;
|
link->next = p->insns;
|
p->insns = link;
|
p->insns = link;
|
}
|
}
|
}
|
}
|
|
|
/* Don't mention instructions whose names are the null string
|
/* Don't mention instructions whose names are the null string
|
or begin with '*'. They are in the machine description just
|
or begin with '*'. They are in the machine description just
|
to be recognized. */
|
to be recognized. */
|
if (XSTR (insn, 0)[0] == 0 || XSTR (insn, 0)[0] == '*')
|
if (XSTR (insn, 0)[0] == 0 || XSTR (insn, 0)[0] == '*')
|
return;
|
return;
|
|
|
printf ("/* %s:%d */\n", read_rtx_filename, lineno);
|
printf ("/* %s:%d */\n", read_rtx_filename, lineno);
|
|
|
/* Find out how many operands this function has. */
|
/* Find out how many operands this function has. */
|
operands = max_operand_vec (insn, 1);
|
operands = max_operand_vec (insn, 1);
|
if (max_dup_opno >= operands)
|
if (max_dup_opno >= operands)
|
fatal ("match_dup operand number has no match_operand");
|
fatal ("match_dup operand number has no match_operand");
|
|
|
/* Output the function name and argument declarations. */
|
/* Output the function name and argument declarations. */
|
printf ("rtx\ngen_%s (", XSTR (insn, 0));
|
printf ("rtx\ngen_%s (", XSTR (insn, 0));
|
if (operands)
|
if (operands)
|
for (i = 0; i < operands; i++)
|
for (i = 0; i < operands; i++)
|
if (i)
|
if (i)
|
printf (",\n\trtx operand%d ATTRIBUTE_UNUSED", i);
|
printf (",\n\trtx operand%d ATTRIBUTE_UNUSED", i);
|
else
|
else
|
printf ("rtx operand%d ATTRIBUTE_UNUSED", i);
|
printf ("rtx operand%d ATTRIBUTE_UNUSED", i);
|
else
|
else
|
printf ("void");
|
printf ("void");
|
printf (")\n");
|
printf (")\n");
|
printf ("{\n");
|
printf ("{\n");
|
|
|
/* Output code to construct and return the rtl for the instruction body. */
|
/* Output code to construct and return the rtl for the instruction body. */
|
|
|
if (XVECLEN (insn, 1) == 1)
|
if (XVECLEN (insn, 1) == 1)
|
{
|
{
|
printf (" return ");
|
printf (" return ");
|
gen_exp (XVECEXP (insn, 1, 0), DEFINE_INSN, NULL);
|
gen_exp (XVECEXP (insn, 1, 0), DEFINE_INSN, NULL);
|
printf (";\n}\n\n");
|
printf (";\n}\n\n");
|
}
|
}
|
else
|
else
|
{
|
{
|
printf (" return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d",
|
printf (" return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d",
|
XVECLEN (insn, 1));
|
XVECLEN (insn, 1));
|
|
|
for (i = 0; i < XVECLEN (insn, 1); i++)
|
for (i = 0; i < XVECLEN (insn, 1); i++)
|
{
|
{
|
printf (",\n\t\t");
|
printf (",\n\t\t");
|
gen_exp (XVECEXP (insn, 1, i), DEFINE_INSN, NULL);
|
gen_exp (XVECEXP (insn, 1, i), DEFINE_INSN, NULL);
|
}
|
}
|
printf ("));\n}\n\n");
|
printf ("));\n}\n\n");
|
}
|
}
|
}
|
}
|
|
|
/* Generate the `gen_...' function for a DEFINE_EXPAND. */
|
/* Generate the `gen_...' function for a DEFINE_EXPAND. */
|
|
|
static void
|
static void
|
gen_expand (rtx expand)
|
gen_expand (rtx expand)
|
{
|
{
|
int operands;
|
int operands;
|
int i;
|
int i;
|
|
|
if (strlen (XSTR (expand, 0)) == 0)
|
if (strlen (XSTR (expand, 0)) == 0)
|
fatal ("define_expand lacks a name");
|
fatal ("define_expand lacks a name");
|
if (XVEC (expand, 1) == 0)
|
if (XVEC (expand, 1) == 0)
|
fatal ("define_expand for %s lacks a pattern", XSTR (expand, 0));
|
fatal ("define_expand for %s lacks a pattern", XSTR (expand, 0));
|
|
|
/* Find out how many operands this function has. */
|
/* Find out how many operands this function has. */
|
operands = max_operand_vec (expand, 1);
|
operands = max_operand_vec (expand, 1);
|
|
|
/* Output the function name and argument declarations. */
|
/* Output the function name and argument declarations. */
|
printf ("rtx\ngen_%s (", XSTR (expand, 0));
|
printf ("rtx\ngen_%s (", XSTR (expand, 0));
|
if (operands)
|
if (operands)
|
for (i = 0; i < operands; i++)
|
for (i = 0; i < operands; i++)
|
if (i)
|
if (i)
|
printf (",\n\trtx operand%d", i);
|
printf (",\n\trtx operand%d", i);
|
else
|
else
|
printf ("rtx operand%d", i);
|
printf ("rtx operand%d", i);
|
else
|
else
|
printf ("void");
|
printf ("void");
|
printf (")\n");
|
printf (")\n");
|
printf ("{\n");
|
printf ("{\n");
|
|
|
/* If we don't have any C code to write, only one insn is being written,
|
/* If we don't have any C code to write, only one insn is being written,
|
and no MATCH_DUPs are present, we can just return the desired insn
|
and no MATCH_DUPs are present, we can just return the desired insn
|
like we do for a DEFINE_INSN. This saves memory. */
|
like we do for a DEFINE_INSN. This saves memory. */
|
if ((XSTR (expand, 3) == 0 || *XSTR (expand, 3) == '\0')
|
if ((XSTR (expand, 3) == 0 || *XSTR (expand, 3) == '\0')
|
&& operands > max_dup_opno
|
&& operands > max_dup_opno
|
&& XVECLEN (expand, 1) == 1)
|
&& XVECLEN (expand, 1) == 1)
|
{
|
{
|
printf (" return ");
|
printf (" return ");
|
gen_exp (XVECEXP (expand, 1, 0), DEFINE_EXPAND, NULL);
|
gen_exp (XVECEXP (expand, 1, 0), DEFINE_EXPAND, NULL);
|
printf (";\n}\n\n");
|
printf (";\n}\n\n");
|
return;
|
return;
|
}
|
}
|
|
|
/* For each operand referred to only with MATCH_DUPs,
|
/* For each operand referred to only with MATCH_DUPs,
|
make a local variable. */
|
make a local variable. */
|
for (i = operands; i <= max_dup_opno; i++)
|
for (i = operands; i <= max_dup_opno; i++)
|
printf (" rtx operand%d;\n", i);
|
printf (" rtx operand%d;\n", i);
|
for (; i <= max_scratch_opno; i++)
|
for (; i <= max_scratch_opno; i++)
|
printf (" rtx operand%d ATTRIBUTE_UNUSED;\n", i);
|
printf (" rtx operand%d ATTRIBUTE_UNUSED;\n", i);
|
printf (" rtx _val = 0;\n");
|
printf (" rtx _val = 0;\n");
|
printf (" start_sequence ();\n");
|
printf (" start_sequence ();\n");
|
|
|
/* The fourth operand of DEFINE_EXPAND is some code to be executed
|
/* The fourth operand of DEFINE_EXPAND is some code to be executed
|
before the actual construction.
|
before the actual construction.
|
This code expects to refer to `operands'
|
This code expects to refer to `operands'
|
just as the output-code in a DEFINE_INSN does,
|
just as the output-code in a DEFINE_INSN does,
|
but here `operands' is an automatic array.
|
but here `operands' is an automatic array.
|
So copy the operand values there before executing it. */
|
So copy the operand values there before executing it. */
|
if (XSTR (expand, 3) && *XSTR (expand, 3))
|
if (XSTR (expand, 3) && *XSTR (expand, 3))
|
{
|
{
|
printf (" {\n");
|
printf (" {\n");
|
if (operands > 0 || max_dup_opno >= 0 || max_scratch_opno >= 0)
|
if (operands > 0 || max_dup_opno >= 0 || max_scratch_opno >= 0)
|
printf (" rtx operands[%d];\n",
|
printf (" rtx operands[%d];\n",
|
MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1));
|
MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1));
|
/* Output code to copy the arguments into `operands'. */
|
/* Output code to copy the arguments into `operands'. */
|
for (i = 0; i < operands; i++)
|
for (i = 0; i < operands; i++)
|
printf (" operands[%d] = operand%d;\n", i, i);
|
printf (" operands[%d] = operand%d;\n", i, i);
|
|
|
/* Output the special code to be executed before the sequence
|
/* Output the special code to be executed before the sequence
|
is generated. */
|
is generated. */
|
print_rtx_ptr_loc (XSTR (expand, 3));
|
print_rtx_ptr_loc (XSTR (expand, 3));
|
printf ("%s\n", XSTR (expand, 3));
|
printf ("%s\n", XSTR (expand, 3));
|
|
|
/* Output code to copy the arguments back out of `operands'
|
/* Output code to copy the arguments back out of `operands'
|
(unless we aren't going to use them at all). */
|
(unless we aren't going to use them at all). */
|
if (XVEC (expand, 1) != 0)
|
if (XVEC (expand, 1) != 0)
|
{
|
{
|
for (i = 0; i < operands; i++)
|
for (i = 0; i < operands; i++)
|
printf (" operand%d = operands[%d];\n", i, i);
|
printf (" operand%d = operands[%d];\n", i, i);
|
for (; i <= max_dup_opno; i++)
|
for (; i <= max_dup_opno; i++)
|
printf (" operand%d = operands[%d];\n", i, i);
|
printf (" operand%d = operands[%d];\n", i, i);
|
for (; i <= max_scratch_opno; i++)
|
for (; i <= max_scratch_opno; i++)
|
printf (" operand%d = operands[%d];\n", i, i);
|
printf (" operand%d = operands[%d];\n", i, i);
|
}
|
}
|
printf (" }\n");
|
printf (" }\n");
|
}
|
}
|
|
|
/* Output code to construct the rtl for the instruction bodies.
|
/* Output code to construct the rtl for the instruction bodies.
|
Use emit_insn to add them to the sequence being accumulated.
|
Use emit_insn to add them to the sequence being accumulated.
|
But don't do this if the user's code has set `no_more' nonzero. */
|
But don't do this if the user's code has set `no_more' nonzero. */
|
|
|
for (i = 0; i < XVECLEN (expand, 1); i++)
|
for (i = 0; i < XVECLEN (expand, 1); i++)
|
{
|
{
|
rtx next = XVECEXP (expand, 1, i);
|
rtx next = XVECEXP (expand, 1, i);
|
if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC)
|
if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC)
|
|| (GET_CODE (next) == PARALLEL
|
|| (GET_CODE (next) == PARALLEL
|
&& ((GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& ((GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC)
|
&& GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC)
|
|| GET_CODE (XVECEXP (next, 0, 0)) == RETURN))
|
|| GET_CODE (XVECEXP (next, 0, 0)) == RETURN))
|
|| GET_CODE (next) == RETURN)
|
|| GET_CODE (next) == RETURN)
|
printf (" emit_jump_insn (");
|
printf (" emit_jump_insn (");
|
else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL)
|
else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL)
|
|| GET_CODE (next) == CALL
|
|| GET_CODE (next) == CALL
|
|| (GET_CODE (next) == PARALLEL
|
|| (GET_CODE (next) == PARALLEL
|
&& GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (SET_SRC (XVECEXP (next, 0, 0))) == CALL)
|
&& GET_CODE (SET_SRC (XVECEXP (next, 0, 0))) == CALL)
|
|| (GET_CODE (next) == PARALLEL
|
|| (GET_CODE (next) == PARALLEL
|
&& GET_CODE (XVECEXP (next, 0, 0)) == CALL))
|
&& GET_CODE (XVECEXP (next, 0, 0)) == CALL))
|
printf (" emit_call_insn (");
|
printf (" emit_call_insn (");
|
else if (LABEL_P (next))
|
else if (LABEL_P (next))
|
printf (" emit_label (");
|
printf (" emit_label (");
|
else if (GET_CODE (next) == MATCH_OPERAND
|
else if (GET_CODE (next) == MATCH_OPERAND
|
|| GET_CODE (next) == MATCH_DUP
|
|| GET_CODE (next) == MATCH_DUP
|
|| GET_CODE (next) == MATCH_OPERATOR
|
|| GET_CODE (next) == MATCH_OPERATOR
|
|| GET_CODE (next) == MATCH_OP_DUP
|
|| GET_CODE (next) == MATCH_OP_DUP
|
|| GET_CODE (next) == MATCH_PARALLEL
|
|| GET_CODE (next) == MATCH_PARALLEL
|
|| GET_CODE (next) == MATCH_PAR_DUP
|
|| GET_CODE (next) == MATCH_PAR_DUP
|
|| GET_CODE (next) == PARALLEL)
|
|| GET_CODE (next) == PARALLEL)
|
printf (" emit (");
|
printf (" emit (");
|
else
|
else
|
printf (" emit_insn (");
|
printf (" emit_insn (");
|
gen_exp (next, DEFINE_EXPAND, NULL);
|
gen_exp (next, DEFINE_EXPAND, NULL);
|
printf (");\n");
|
printf (");\n");
|
if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC
|
if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC
|
&& GET_CODE (SET_SRC (next)) == LABEL_REF)
|
&& GET_CODE (SET_SRC (next)) == LABEL_REF)
|
printf (" emit_barrier ();");
|
printf (" emit_barrier ();");
|
}
|
}
|
|
|
/* Call `get_insns' to extract the list of all the
|
/* Call `get_insns' to extract the list of all the
|
insns emitted within this gen_... function. */
|
insns emitted within this gen_... function. */
|
|
|
printf (" _val = get_insns ();\n");
|
printf (" _val = get_insns ();\n");
|
printf (" end_sequence ();\n");
|
printf (" end_sequence ();\n");
|
printf (" return _val;\n}\n\n");
|
printf (" return _val;\n}\n\n");
|
}
|
}
|
|
|
/* Like gen_expand, but generates insns resulting from splitting SPLIT. */
|
/* Like gen_expand, but generates insns resulting from splitting SPLIT. */
|
|
|
static void
|
static void
|
gen_split (rtx split)
|
gen_split (rtx split)
|
{
|
{
|
int i;
|
int i;
|
int operands;
|
int operands;
|
const char *const name =
|
const char *const name =
|
((GET_CODE (split) == DEFINE_PEEPHOLE2) ? "peephole2" : "split");
|
((GET_CODE (split) == DEFINE_PEEPHOLE2) ? "peephole2" : "split");
|
const char *unused;
|
const char *unused;
|
char *used;
|
char *used;
|
|
|
if (XVEC (split, 0) == 0)
|
if (XVEC (split, 0) == 0)
|
fatal ("define_%s (definition %d) lacks a pattern", name,
|
fatal ("define_%s (definition %d) lacks a pattern", name,
|
insn_index_number);
|
insn_index_number);
|
else if (XVEC (split, 2) == 0)
|
else if (XVEC (split, 2) == 0)
|
fatal ("define_%s (definition %d) lacks a replacement pattern", name,
|
fatal ("define_%s (definition %d) lacks a replacement pattern", name,
|
insn_index_number);
|
insn_index_number);
|
|
|
/* Find out how many operands this function has. */
|
/* Find out how many operands this function has. */
|
|
|
max_operand_vec (split, 2);
|
max_operand_vec (split, 2);
|
operands = MAX (max_opno, MAX (max_dup_opno, max_scratch_opno)) + 1;
|
operands = MAX (max_opno, MAX (max_dup_opno, max_scratch_opno)) + 1;
|
unused = (operands == 0 ? " ATTRIBUTE_UNUSED" : "");
|
unused = (operands == 0 ? " ATTRIBUTE_UNUSED" : "");
|
used = XCNEWVEC (char, operands);
|
used = XCNEWVEC (char, operands);
|
|
|
/* Output the prototype, function name and argument declarations. */
|
/* Output the prototype, function name and argument declarations. */
|
if (GET_CODE (split) == DEFINE_PEEPHOLE2)
|
if (GET_CODE (split) == DEFINE_PEEPHOLE2)
|
{
|
{
|
printf ("extern rtx gen_%s_%d (rtx, rtx *);\n",
|
printf ("extern rtx gen_%s_%d (rtx, rtx *);\n",
|
name, insn_code_number);
|
name, insn_code_number);
|
printf ("rtx\ngen_%s_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n",
|
printf ("rtx\ngen_%s_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n",
|
name, insn_code_number, unused);
|
name, insn_code_number, unused);
|
}
|
}
|
else
|
else
|
{
|
{
|
printf ("extern rtx gen_split_%d (rtx, rtx *);\n", insn_code_number);
|
printf ("extern rtx gen_split_%d (rtx, rtx *);\n", insn_code_number);
|
printf ("rtx\ngen_split_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n",
|
printf ("rtx\ngen_split_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n",
|
insn_code_number, unused);
|
insn_code_number, unused);
|
}
|
}
|
printf ("{\n");
|
printf ("{\n");
|
|
|
/* Declare all local variables. */
|
/* Declare all local variables. */
|
for (i = 0; i < operands; i++)
|
for (i = 0; i < operands; i++)
|
printf (" rtx operand%d;\n", i);
|
printf (" rtx operand%d;\n", i);
|
printf (" rtx _val = 0;\n");
|
printf (" rtx _val = 0;\n");
|
|
|
if (GET_CODE (split) == DEFINE_PEEPHOLE2)
|
if (GET_CODE (split) == DEFINE_PEEPHOLE2)
|
output_peephole2_scratches (split);
|
output_peephole2_scratches (split);
|
|
|
printf (" start_sequence ();\n");
|
printf (" start_sequence ();\n");
|
|
|
/* The fourth operand of DEFINE_SPLIT is some code to be executed
|
/* The fourth operand of DEFINE_SPLIT is some code to be executed
|
before the actual construction. */
|
before the actual construction. */
|
|
|
if (XSTR (split, 3))
|
if (XSTR (split, 3))
|
{
|
{
|
print_rtx_ptr_loc (XSTR (split, 3));
|
print_rtx_ptr_loc (XSTR (split, 3));
|
printf ("%s\n", XSTR (split, 3));
|
printf ("%s\n", XSTR (split, 3));
|
}
|
}
|
|
|
/* Output code to copy the arguments back out of `operands' */
|
/* Output code to copy the arguments back out of `operands' */
|
for (i = 0; i < operands; i++)
|
for (i = 0; i < operands; i++)
|
printf (" operand%d = operands[%d];\n", i, i);
|
printf (" operand%d = operands[%d];\n", i, i);
|
|
|
/* Output code to construct the rtl for the instruction bodies.
|
/* Output code to construct the rtl for the instruction bodies.
|
Use emit_insn to add them to the sequence being accumulated.
|
Use emit_insn to add them to the sequence being accumulated.
|
But don't do this if the user's code has set `no_more' nonzero. */
|
But don't do this if the user's code has set `no_more' nonzero. */
|
|
|
for (i = 0; i < XVECLEN (split, 2); i++)
|
for (i = 0; i < XVECLEN (split, 2); i++)
|
{
|
{
|
rtx next = XVECEXP (split, 2, i);
|
rtx next = XVECEXP (split, 2, i);
|
if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC)
|
if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC)
|
|| (GET_CODE (next) == PARALLEL
|
|| (GET_CODE (next) == PARALLEL
|
&& GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC)
|
&& GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC)
|
|| GET_CODE (next) == RETURN)
|
|| GET_CODE (next) == RETURN)
|
printf (" emit_jump_insn (");
|
printf (" emit_jump_insn (");
|
else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL)
|
else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL)
|
|| GET_CODE (next) == CALL
|
|| GET_CODE (next) == CALL
|
|| (GET_CODE (next) == PARALLEL
|
|| (GET_CODE (next) == PARALLEL
|
&& GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (XVECEXP (next, 0, 0)) == SET
|
&& GET_CODE (SET_SRC (XVECEXP (next, 0, 0))) == CALL)
|
&& GET_CODE (SET_SRC (XVECEXP (next, 0, 0))) == CALL)
|
|| (GET_CODE (next) == PARALLEL
|
|| (GET_CODE (next) == PARALLEL
|
&& GET_CODE (XVECEXP (next, 0, 0)) == CALL))
|
&& GET_CODE (XVECEXP (next, 0, 0)) == CALL))
|
printf (" emit_call_insn (");
|
printf (" emit_call_insn (");
|
else if (LABEL_P (next))
|
else if (LABEL_P (next))
|
printf (" emit_label (");
|
printf (" emit_label (");
|
else if (GET_CODE (next) == MATCH_OPERAND
|
else if (GET_CODE (next) == MATCH_OPERAND
|
|| GET_CODE (next) == MATCH_OPERATOR
|
|| GET_CODE (next) == MATCH_OPERATOR
|
|| GET_CODE (next) == MATCH_PARALLEL
|
|| GET_CODE (next) == MATCH_PARALLEL
|
|| GET_CODE (next) == MATCH_OP_DUP
|
|| GET_CODE (next) == MATCH_OP_DUP
|
|| GET_CODE (next) == MATCH_DUP
|
|| GET_CODE (next) == MATCH_DUP
|
|| GET_CODE (next) == PARALLEL)
|
|| GET_CODE (next) == PARALLEL)
|
printf (" emit (");
|
printf (" emit (");
|
else
|
else
|
printf (" emit_insn (");
|
printf (" emit_insn (");
|
gen_exp (next, GET_CODE (split), used);
|
gen_exp (next, GET_CODE (split), used);
|
printf (");\n");
|
printf (");\n");
|
if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC
|
if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC
|
&& GET_CODE (SET_SRC (next)) == LABEL_REF)
|
&& GET_CODE (SET_SRC (next)) == LABEL_REF)
|
printf (" emit_barrier ();");
|
printf (" emit_barrier ();");
|
}
|
}
|
|
|
/* Call `get_insns' to make a list of all the
|
/* Call `get_insns' to make a list of all the
|
insns emitted within this gen_... function. */
|
insns emitted within this gen_... function. */
|
|
|
printf (" _val = get_insns ();\n");
|
printf (" _val = get_insns ();\n");
|
printf (" end_sequence ();\n");
|
printf (" end_sequence ();\n");
|
printf (" return _val;\n}\n\n");
|
printf (" return _val;\n}\n\n");
|
|
|
free (used);
|
free (used);
|
}
|
}
|
|
|
/* Write a function, `add_clobbers', that is given a PARALLEL of sufficient
|
/* Write a function, `add_clobbers', that is given a PARALLEL of sufficient
|
size for the insn and an INSN_CODE, and inserts the required CLOBBERs at
|
size for the insn and an INSN_CODE, and inserts the required CLOBBERs at
|
the end of the vector. */
|
the end of the vector. */
|
|
|
static void
|
static void
|
output_add_clobbers (void)
|
output_add_clobbers (void)
|
{
|
{
|
struct clobber_pat *clobber;
|
struct clobber_pat *clobber;
|
struct clobber_ent *ent;
|
struct clobber_ent *ent;
|
int i;
|
int i;
|
|
|
printf ("\n\nvoid\nadd_clobbers (rtx pattern ATTRIBUTE_UNUSED, int insn_code_number)\n");
|
printf ("\n\nvoid\nadd_clobbers (rtx pattern ATTRIBUTE_UNUSED, int insn_code_number)\n");
|
printf ("{\n");
|
printf ("{\n");
|
printf (" switch (insn_code_number)\n");
|
printf (" switch (insn_code_number)\n");
|
printf (" {\n");
|
printf (" {\n");
|
|
|
for (clobber = clobber_list; clobber; clobber = clobber->next)
|
for (clobber = clobber_list; clobber; clobber = clobber->next)
|
{
|
{
|
for (ent = clobber->insns; ent; ent = ent->next)
|
for (ent = clobber->insns; ent; ent = ent->next)
|
printf (" case %d:\n", ent->code_number);
|
printf (" case %d:\n", ent->code_number);
|
|
|
for (i = clobber->first_clobber; i < XVECLEN (clobber->pattern, 1); i++)
|
for (i = clobber->first_clobber; i < XVECLEN (clobber->pattern, 1); i++)
|
{
|
{
|
printf (" XVECEXP (pattern, 0, %d) = ", i);
|
printf (" XVECEXP (pattern, 0, %d) = ", i);
|
gen_exp (XVECEXP (clobber->pattern, 1, i),
|
gen_exp (XVECEXP (clobber->pattern, 1, i),
|
GET_CODE (clobber->pattern), NULL);
|
GET_CODE (clobber->pattern), NULL);
|
printf (";\n");
|
printf (";\n");
|
}
|
}
|
|
|
printf (" break;\n\n");
|
printf (" break;\n\n");
|
}
|
}
|
|
|
printf (" default:\n");
|
printf (" default:\n");
|
printf (" gcc_unreachable ();\n");
|
printf (" gcc_unreachable ();\n");
|
printf (" }\n");
|
printf (" }\n");
|
printf ("}\n");
|
printf ("}\n");
|
}
|
}
|
|
|
/* Write a function, `added_clobbers_hard_reg_p' that is given an insn_code
|
/* Write a function, `added_clobbers_hard_reg_p' that is given an insn_code
|
number that will have clobbers added (as indicated by `recog') and returns
|
number that will have clobbers added (as indicated by `recog') and returns
|
1 if those include a clobber of a hard reg or 0 if all of them just clobber
|
1 if those include a clobber of a hard reg or 0 if all of them just clobber
|
SCRATCH. */
|
SCRATCH. */
|
|
|
static void
|
static void
|
output_added_clobbers_hard_reg_p (void)
|
output_added_clobbers_hard_reg_p (void)
|
{
|
{
|
struct clobber_pat *clobber;
|
struct clobber_pat *clobber;
|
struct clobber_ent *ent;
|
struct clobber_ent *ent;
|
int clobber_p, used;
|
int clobber_p, used;
|
|
|
printf ("\n\nint\nadded_clobbers_hard_reg_p (int insn_code_number)\n");
|
printf ("\n\nint\nadded_clobbers_hard_reg_p (int insn_code_number)\n");
|
printf ("{\n");
|
printf ("{\n");
|
printf (" switch (insn_code_number)\n");
|
printf (" switch (insn_code_number)\n");
|
printf (" {\n");
|
printf (" {\n");
|
|
|
for (clobber_p = 0; clobber_p <= 1; clobber_p++)
|
for (clobber_p = 0; clobber_p <= 1; clobber_p++)
|
{
|
{
|
used = 0;
|
used = 0;
|
for (clobber = clobber_list; clobber; clobber = clobber->next)
|
for (clobber = clobber_list; clobber; clobber = clobber->next)
|
if (clobber->has_hard_reg == clobber_p)
|
if (clobber->has_hard_reg == clobber_p)
|
for (ent = clobber->insns; ent; ent = ent->next)
|
for (ent = clobber->insns; ent; ent = ent->next)
|
{
|
{
|
printf (" case %d:\n", ent->code_number);
|
printf (" case %d:\n", ent->code_number);
|
used++;
|
used++;
|
}
|
}
|
|
|
if (used)
|
if (used)
|
printf (" return %d;\n\n", clobber_p);
|
printf (" return %d;\n\n", clobber_p);
|
}
|
}
|
|
|
printf (" default:\n");
|
printf (" default:\n");
|
printf (" gcc_unreachable ();\n");
|
printf (" gcc_unreachable ();\n");
|
printf (" }\n");
|
printf (" }\n");
|
printf ("}\n");
|
printf ("}\n");
|
}
|
}
|
|
|
/* Generate code to invoke find_free_register () as needed for the
|
/* Generate code to invoke find_free_register () as needed for the
|
scratch registers used by the peephole2 pattern in SPLIT. */
|
scratch registers used by the peephole2 pattern in SPLIT. */
|
|
|
static void
|
static void
|
output_peephole2_scratches (rtx split)
|
output_peephole2_scratches (rtx split)
|
{
|
{
|
int i;
|
int i;
|
int insn_nr = 0;
|
int insn_nr = 0;
|
|
|
printf (" HARD_REG_SET _regs_allocated;\n");
|
printf (" HARD_REG_SET _regs_allocated;\n");
|
printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n");
|
printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n");
|
|
|
for (i = 0; i < XVECLEN (split, 0); i++)
|
for (i = 0; i < XVECLEN (split, 0); i++)
|
{
|
{
|
rtx elt = XVECEXP (split, 0, i);
|
rtx elt = XVECEXP (split, 0, i);
|
if (GET_CODE (elt) == MATCH_SCRATCH)
|
if (GET_CODE (elt) == MATCH_SCRATCH)
|
{
|
{
|
int last_insn_nr = insn_nr;
|
int last_insn_nr = insn_nr;
|
int cur_insn_nr = insn_nr;
|
int cur_insn_nr = insn_nr;
|
int j;
|
int j;
|
for (j = i + 1; j < XVECLEN (split, 0); j++)
|
for (j = i + 1; j < XVECLEN (split, 0); j++)
|
if (GET_CODE (XVECEXP (split, 0, j)) == MATCH_DUP)
|
if (GET_CODE (XVECEXP (split, 0, j)) == MATCH_DUP)
|
{
|
{
|
if (XINT (XVECEXP (split, 0, j), 0) == XINT (elt, 0))
|
if (XINT (XVECEXP (split, 0, j), 0) == XINT (elt, 0))
|
last_insn_nr = cur_insn_nr;
|
last_insn_nr = cur_insn_nr;
|
}
|
}
|
else if (GET_CODE (XVECEXP (split, 0, j)) != MATCH_SCRATCH)
|
else if (GET_CODE (XVECEXP (split, 0, j)) != MATCH_SCRATCH)
|
cur_insn_nr++;
|
cur_insn_nr++;
|
|
|
printf (" if ((operands[%d] = peep2_find_free_register (%d, %d, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\
|
printf (" if ((operands[%d] = peep2_find_free_register (%d, %d, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\
|
return NULL;\n",
|
return NULL;\n",
|
XINT (elt, 0),
|
XINT (elt, 0),
|
insn_nr, last_insn_nr,
|
insn_nr, last_insn_nr,
|
XSTR (elt, 1),
|
XSTR (elt, 1),
|
GET_MODE_NAME (GET_MODE (elt)));
|
GET_MODE_NAME (GET_MODE (elt)));
|
|
|
}
|
}
|
else if (GET_CODE (elt) != MATCH_DUP)
|
else if (GET_CODE (elt) != MATCH_DUP)
|
insn_nr++;
|
insn_nr++;
|
}
|
}
|
}
|
}
|
|
|
int
|
int
|
main (int argc, char **argv)
|
main (int argc, char **argv)
|
{
|
{
|
rtx desc;
|
rtx desc;
|
|
|
progname = "genemit";
|
progname = "genemit";
|
|
|
if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
|
if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
|
return (FATAL_EXIT_CODE);
|
return (FATAL_EXIT_CODE);
|
|
|
/* Assign sequential codes to all entries in the machine description
|
/* Assign sequential codes to all entries in the machine description
|
in parallel with the tables in insn-output.c. */
|
in parallel with the tables in insn-output.c. */
|
|
|
insn_code_number = 0;
|
insn_code_number = 0;
|
insn_index_number = 0;
|
insn_index_number = 0;
|
|
|
printf ("/* Generated automatically by the program `genemit'\n\
|
printf ("/* Generated automatically by the program `genemit'\n\
|
from the machine description file `md'. */\n\n");
|
from the machine description file `md'. */\n\n");
|
|
|
printf ("#include \"config.h\"\n");
|
printf ("#include \"config.h\"\n");
|
printf ("#include \"system.h\"\n");
|
printf ("#include \"system.h\"\n");
|
printf ("#include \"coretypes.h\"\n");
|
printf ("#include \"coretypes.h\"\n");
|
printf ("#include \"tm.h\"\n");
|
printf ("#include \"tm.h\"\n");
|
printf ("#include \"rtl.h\"\n");
|
printf ("#include \"rtl.h\"\n");
|
printf ("#include \"tm_p.h\"\n");
|
printf ("#include \"tm_p.h\"\n");
|
printf ("#include \"function.h\"\n");
|
printf ("#include \"function.h\"\n");
|
printf ("#include \"expr.h\"\n");
|
printf ("#include \"expr.h\"\n");
|
printf ("#include \"optabs.h\"\n");
|
printf ("#include \"optabs.h\"\n");
|
printf ("#include \"real.h\"\n");
|
printf ("#include \"real.h\"\n");
|
printf ("#include \"flags.h\"\n");
|
printf ("#include \"flags.h\"\n");
|
printf ("#include \"output.h\"\n");
|
printf ("#include \"output.h\"\n");
|
printf ("#include \"insn-config.h\"\n");
|
printf ("#include \"insn-config.h\"\n");
|
printf ("#include \"hard-reg-set.h\"\n");
|
printf ("#include \"hard-reg-set.h\"\n");
|
printf ("#include \"recog.h\"\n");
|
printf ("#include \"recog.h\"\n");
|
printf ("#include \"resource.h\"\n");
|
printf ("#include \"resource.h\"\n");
|
printf ("#include \"reload.h\"\n");
|
printf ("#include \"reload.h\"\n");
|
printf ("#include \"toplev.h\"\n");
|
printf ("#include \"toplev.h\"\n");
|
printf ("#include \"tm-constrs.h\"\n");
|
printf ("#include \"tm-constrs.h\"\n");
|
printf ("#include \"ggc.h\"\n\n");
|
printf ("#include \"ggc.h\"\n\n");
|
printf ("#include \"basic-block.h\"\n\n");
|
printf ("#include \"basic-block.h\"\n\n");
|
printf ("#define FAIL return (end_sequence (), _val)\n");
|
printf ("#define FAIL return (end_sequence (), _val)\n");
|
printf ("#define DONE return (_val = get_insns (), end_sequence (), _val)\n\n");
|
printf ("#define DONE return (_val = get_insns (), end_sequence (), _val)\n\n");
|
|
|
/* Read the machine description. */
|
/* Read the machine description. */
|
|
|
while (1)
|
while (1)
|
{
|
{
|
int line_no;
|
int line_no;
|
|
|
desc = read_md_rtx (&line_no, &insn_code_number);
|
desc = read_md_rtx (&line_no, &insn_code_number);
|
if (desc == NULL)
|
if (desc == NULL)
|
break;
|
break;
|
|
|
switch (GET_CODE (desc))
|
switch (GET_CODE (desc))
|
{
|
{
|
case DEFINE_INSN:
|
case DEFINE_INSN:
|
gen_insn (desc, line_no);
|
gen_insn (desc, line_no);
|
break;
|
break;
|
|
|
case DEFINE_EXPAND:
|
case DEFINE_EXPAND:
|
printf ("/* %s:%d */\n", read_rtx_filename, line_no);
|
printf ("/* %s:%d */\n", read_rtx_filename, line_no);
|
gen_expand (desc);
|
gen_expand (desc);
|
break;
|
break;
|
|
|
case DEFINE_SPLIT:
|
case DEFINE_SPLIT:
|
printf ("/* %s:%d */\n", read_rtx_filename, line_no);
|
printf ("/* %s:%d */\n", read_rtx_filename, line_no);
|
gen_split (desc);
|
gen_split (desc);
|
break;
|
break;
|
|
|
case DEFINE_PEEPHOLE2:
|
case DEFINE_PEEPHOLE2:
|
printf ("/* %s:%d */\n", read_rtx_filename, line_no);
|
printf ("/* %s:%d */\n", read_rtx_filename, line_no);
|
gen_split (desc);
|
gen_split (desc);
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
++insn_index_number;
|
++insn_index_number;
|
}
|
}
|
|
|
/* Write out the routines to add CLOBBERs to a pattern and say whether they
|
/* Write out the routines to add CLOBBERs to a pattern and say whether they
|
clobber a hard reg. */
|
clobber a hard reg. */
|
output_add_clobbers ();
|
output_add_clobbers ();
|
output_added_clobbers_hard_reg_p ();
|
output_added_clobbers_hard_reg_p ();
|
|
|
fflush (stdout);
|
fflush (stdout);
|
return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
|
return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
|
}
|
}
|
|
|
