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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, 1997 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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "config.h"
#include <stdio.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_INT (CONST_DOUBLE_HIGH (operands[1]));
operands[1] = GEN_INT (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_INT (CONST_DOUBLE_HIGH (operands[0]));
operands[0] = GEN_INT (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);
}
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