Annotation of gcc/config/elxsi/elxsi.c, revision 1.1.1.2

1.1       root        1: /* Subroutines for insn-output.c for GNU compiler.  Elxsi version.
                      2:    Copyright (C) 1987, 1992 Free Software Foundation, Inc
                      3:    This port, done by Mike Stump <[email protected]> in 1988, and is the first
                      4:    64 bit port of GNU CC.
                      5:    Based upon the VAX port.
                      6: 
                      7: This file is part of GNU CC.
                      8: 
                      9: GNU CC is free software; you can redistribute it and/or modify
                     10: it under the terms of the GNU General Public License as published by
                     11: the Free Software Foundation; either version 1, or (at your option)
                     12: any later version.
                     13: 
                     14: GNU CC is distributed in the hope that it will be useful,
                     15: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     16: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     17: GNU General Public License for more details.
                     18: 
                     19: You should have received a copy of the GNU General Public License
                     20: along with GNU CC; see the file COPYING.  If not, write to
1.1.1.2 ! root       21: the Free Software Foundation, 59 Temple Place - Suite 330,
        !            22: Boston, MA 02111-1307, USA.  */
1.1       root       23: 
                     24: #include <stdio.h>
                     25: #include "config.h"
                     26: #include "rtl.h"
                     27: 
                     28: extern char *reg_names[];
                     29: rtx cmp_op0=0, cmp_op1=0;
                     30: 
                     31: /* table of relations for compares and branches */
                     32: char *cmp_tab[] = {
                     33:     "gt", "gt", "eq", "eq", "ge", "ge", "lt", "lt", "ne", "ne",
                     34:     "le", "le" };
                     35: 
                     36: /* type is the index into the above table */
                     37: /* s is "" for signed, or "u" for unsigned */
                     38: char *cmp_jmp(s, type, where) char *s; rtx where; {
                     39:     rtx br_ops[3];
                     40:     char template[50];
                     41:     char *f = "";
                     42:     char *bits = "64";
                     43:     if (GET_MODE (cmp_op0) == SFmode) f = "f", bits = "32";
                     44:     if (GET_MODE (cmp_op0) == DFmode) f = "f";
                     45:     br_ops[0] = where;
                     46:     br_ops[1] = cmp_op0;
                     47:     br_ops[2] = cmp_op1;
                     48:     if (cmp_op1)
                     49:        sprintf(template, "%scmp%s.br.%s\t%%1,%%2:j%s\t%%l0",
                     50:                f, s, bits, cmp_tab[type]);
                     51:     else if (*f)
                     52:        sprintf(template, "fcmp.br.%s\t%%1,=0:j%s\t%%l0",
                     53:                bits, cmp_tab[type]);
                     54:     else if (*s) /* can turn the below in to a jmp ... */
                     55:        sprintf(template, "cmpu.br.64\t%%1,=0:j%s\t%%l0", s, cmp_tab[type]);
                     56:     else
                     57:        sprintf(template, "jmp.%s\t%%1,%%l0", cmp_tab[type+1]);
                     58:     output_asm_insn(template, br_ops);
                     59:     return "";
                     60: }
                     61: 
                     62: char *cmp_set(s, type, reg) char *s, *type; rtx reg; {
                     63:     rtx br_ops[3];
                     64:     char template[50];
                     65:     char *f = "";
                     66:     char *bits = "64";
                     67:     if (GET_MODE (cmp_op0) == SFmode) f = "f", bits = "32";
                     68:     else if (GET_MODE (cmp_op0) == DFmode) f = "f";
                     69:     else if (GET_MODE (cmp_op0) == SImode) bits = "32";
                     70:     else if (GET_MODE (cmp_op0) == HImode) bits = "16";
                     71:     else if (GET_MODE (cmp_op0) == QImode) bits = "8";
                     72:     br_ops[0] = reg;
                     73:     br_ops[1] = cmp_op0;
                     74:     br_ops[2] = cmp_op1;
                     75:     if (cmp_op1)
                     76:        sprintf(template, "%scmp%s.%s\t%%0,%%1,%%2:%s",
                     77:                f, s, bits, type);
                     78:     else
                     79:        sprintf(template, "%scmp%s.%s\t%%0,%%1,=0:%s",
                     80:                f, s, bits, type);
                     81:     output_asm_insn(template, br_ops);
                     82:     return "";
                     83: }
                     84: 
                     85: print_operand_address (file, addr)
                     86:      FILE *file;
                     87:      register rtx addr;
                     88: {
                     89:   register rtx reg1, reg2, breg, ireg;
                     90:   rtx offset;
                     91: 
                     92:  retry:
                     93:   switch (GET_CODE (addr))
                     94:     {
                     95: 
                     96:     case MEM:
                     97:       if (GET_CODE (XEXP (addr, 0)) == REG)
                     98:         fprintf (file, "%s", reg_names[REGNO (addr)]);
                     99:       else abort();
                    100:       break;
                    101: 
                    102:     case REG:
                    103:       fprintf (file, "[%s]", reg_names[REGNO (addr)]);
                    104:       break;
                    105: 
                    106:     case PLUS:
                    107:       reg1 = 0;        reg2 = 0;
                    108:       ireg = 0;        breg = 0;
                    109:       offset = 0;
                    110:       if (GET_CODE (XEXP (addr, 0)) == REG)
                    111:        {
                    112:          offset = XEXP (addr, 1);
                    113:          addr = XEXP (addr, 0);
                    114:        }
                    115:       else if (GET_CODE (XEXP (addr, 1)) == REG)
                    116:        {
                    117:          offset = XEXP (addr, 0);
                    118:          addr = XEXP (addr, 1);
                    119:        }
                    120:       fprintf (file, "[%s]", reg_names[REGNO (addr)]);
                    121:       output_address (offset);
                    122:       break;
                    123: 
                    124:     default:
                    125:       output_addr_const (file, addr);
                    126:     }
                    127: }

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