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- /* Subroutines for insn-output.c for AT&T we32000 Family.
- Contributed by John Wehle (john@feith1.uucp)
- Copyright (C) 1991-1992 Free Software Foundation, Inc.
-
- This file is part of GNU CC.
-
- GNU CC 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 1, or (at your option)
- any later version.
-
- GNU CC 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 GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- #include <stdio.h>
- #include "config.h"
- #include "rtl.h"
- #include "real.h"
-
-
- void
- output_move_double (operands)
- rtx *operands;
- {
- rtx lsw_operands[2];
- rtx lsw_sreg = NULL;
- rtx msw_dreg = NULL;
-
- if (GET_CODE (operands[0]) == REG)
- {
- lsw_operands[0] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1);
- msw_dreg = operands[0];
- }
- else if (GET_CODE (operands[0]) == MEM && offsettable_memref_p (operands[0]))
- lsw_operands[0] = adj_offsettable_operand (operands[0], 4);
- else
- abort ();
-
- if (GET_CODE (operands[1]) == REG)
- {
- lsw_operands[1] = gen_rtx (REG, SImode, REGNO (operands[1]) + 1);
- lsw_sreg = lsw_operands[1];
- }
- else if (GET_CODE (operands[1]) == MEM && offsettable_memref_p (operands[1]))
- {
- lsw_operands[1] = adj_offsettable_operand (operands[1], 4);
- lsw_sreg = operands[1];
- for ( ; ; )
- {
- if (REG_P (lsw_sreg))
- break;
- if (CONSTANT_ADDRESS_P (lsw_sreg))
- {
- lsw_sreg = NULL;
- break;
- }
- if (GET_CODE (lsw_sreg) == MEM)
- {
- lsw_sreg = XEXP (lsw_sreg, 0);
- continue;
- }
- if (GET_CODE (lsw_sreg) == PLUS)
- {
- if (CONSTANT_ADDRESS_P (XEXP (lsw_sreg, 1)))
- {
- lsw_sreg = XEXP (lsw_sreg, 0);
- continue;
- }
- else if (CONSTANT_ADDRESS_P (XEXP (lsw_sreg, 0)))
- {
- lsw_sreg = XEXP (lsw_sreg, 1);
- continue;
- }
- }
- abort ();
- }
- }
- else if (GET_CODE (operands[1]) == CONST_DOUBLE)
- {
- lsw_operands[1] = gen_rtx (CONST_INT, SImode,
- CONST_DOUBLE_HIGH (operands[1]));
- operands[1] = gen_rtx (CONST_INT, SImode,
- CONST_DOUBLE_LOW (operands[1]));
- }
- else if (GET_CODE (operands[1]) == CONST_INT)
- {
- lsw_operands[1] = operands[1];
- operands[1] = const0_rtx;
- }
- else
- abort ();
-
- if (!msw_dreg || !lsw_sreg || REGNO (msw_dreg) != REGNO (lsw_sreg))
- {
- output_asm_insn ("movw %1, %0", operands);
- output_asm_insn ("movw %1, %0", lsw_operands);
- }
- else
- {
- output_asm_insn ("movw %1, %0", lsw_operands);
- output_asm_insn ("movw %1, %0", operands);
- }
- }
-
- void
- output_push_double (operands)
- rtx *operands;
- {
- rtx lsw_operands[1];
-
- if (GET_CODE (operands[0]) == REG)
- lsw_operands[0] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1);
- else if (GET_CODE (operands[0]) == MEM && offsettable_memref_p (operands[0]))
- lsw_operands[0] = adj_offsettable_operand (operands[0], 4);
- else if (GET_CODE (operands[0]) == CONST_DOUBLE)
- {
- lsw_operands[0] = gen_rtx (CONST_INT, SImode,
- CONST_DOUBLE_HIGH (operands[0]));
- operands[0] = gen_rtx (CONST_INT, SImode,
- CONST_DOUBLE_LOW (operands[0]));
- }
- else if (GET_CODE (operands[0]) == CONST_INT)
- {
- lsw_operands[0] = operands[0];
- operands[0] = const0_rtx;
- }
- else
- abort ();
-
- output_asm_insn ("pushw %0", operands);
- output_asm_insn ("pushw %0", lsw_operands);
- }
-