adding GNU dc ("desk calculator")

[unix-history] / gnu / usr.bin / gcc1 / cc1 / optabs.c

/* Expand the basic unary and binary arithmetic operations, for GNU compiler.
  Copyright (C) 1987, 1988 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 "config.h"
#include "rtl.h"
#include "tree.h"
#include "flags.h"
#include "insn-flags.h"
#include "insn-codes.h"
#include "expr.h"
#include "insn-config.h"
#include "recog.h"

/* In ANSI C we could write MODE + 1, but traditional C compilers
  seem to reject it.  */
#define INC_MODE(MODE) (enum machine_mode) ((int)(MODE) + 1)

/* Each optab contains info on how this target machine
  can perform a particular operation
  for all sizes and kinds of operands.

  The operation to be performed is often specified
  by passing one of these optabs as an argument.

  See expr.h for documentation of these optabs.  */

optab add_optab;
optab sub_optab;
optab smul_optab;
optab umul_optab;
optab smul_widen_optab;
optab umul_widen_optab;
optab sdiv_optab;
optab sdivmod_optab;
optab udiv_optab;
optab udivmod_optab;
optab smod_optab;
optab umod_optab;
optab flodiv_optab;
optab ftrunc_optab;
optab and_optab;
optab andcb_optab;
optab ior_optab;
optab xor_optab;
optab ashl_optab;
optab lshr_optab;
optab lshl_optab;
optab ashr_optab;
optab rotl_optab;
optab rotr_optab;

optab mov_optab;
optab movstrict_optab;

optab neg_optab;
optab abs_optab;
optab one_cmpl_optab;
optab ffs_optab;

optab cmp_optab;
optab ucmp_optab;  /* Used only for libcalls for unsigned comparisons.  */
optab tst_optab;

/* Indexed by the rtx-code for a conditional (eg. EQ, LT,...)
  gives the gen_function to make a branch to test that condition.  */

rtxfun bcc_gen_fctn[NUM_RTX_CODE];

/* Indexed by the rtx-code for a conditional (eg. EQ, LT,...)
  gives the gen_function to make a store-condition insn
  to test that condition.  */

rtxfun setcc_gen_fctn[NUM_RTX_CODE];
\f
/* Generate code to perform an operation specified by BINOPTAB
  on operands OP0 and OP1, with result having machine-mode MODE.

  UNSIGNEDP is for the case where we have to widen the operands
  to perform the operation.  It says to use zero-extension.

  If TARGET is nonzero, the value
  is generated there, if it is convenient to do so.
  In all cases an rtx is returned for the locus of the value;
  this may or may not be TARGET.  */

rtx
expand_binop (mode, binoptab, op0, op1, target, unsignedp, methods)
    enum machine_mode mode;
    optab binoptab;
    rtx op0, op1;
    rtx target;
    int unsignedp;
    enum optab_methods methods;
{
 enum mode_class class;
 enum machine_mode wider_mode;
 register rtx temp;
 rtx last;

 class = GET_MODE_CLASS (mode);

 op0 = protect_from_queue (op0, 0);
 op1 = protect_from_queue (op1, 0);
 if (target)
   target = protect_from_queue (target, 1);

#if 0
 /* We may get better code by generating the result in a register
    when the target is not one of the operands.  */
 if (target && ! rtx_equal_p (target, op1) && ! rtx_equal_p (target, op0))
   target_is_not_an_operand = 1;
#endif

 if (flag_force_mem)
   {
     op0 = force_not_mem (op0);
     op1 = force_not_mem (op1);
   }

 /* Record where to delete back to if we backtrack.  */
 last = get_last_insn ();

 /* If operation is commutative,
    try to make the first operand a register.
    Even better, try to make it the same as the target.
    Also try to make the last operand a constant.  */
 if (binoptab == add_optab
     || binoptab == and_optab
     || binoptab == ior_optab
     || binoptab == xor_optab
     || binoptab == smul_optab
     || binoptab == umul_optab
     || binoptab == smul_widen_optab
     || binoptab == umul_widen_optab)
   {
     if (((target == 0 || GET_CODE (target) == REG)
          ? ((GET_CODE (op1) == REG
              && GET_CODE (op0) != REG)
             || target == op1)
          : rtx_equal_p (op1, target))
         ||
         GET_CODE (op0) == CONST_INT)
       {
         temp = op1;
         op1 = op0;
         op0 = temp;
       }
   }

 /* If we can do it with a three-operand insn, do so.  */

 if (methods != OPTAB_MUST_WIDEN
     && binoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
   {
     int icode = (int) binoptab->handlers[(int) mode].insn_code;
     enum machine_mode mode0 = insn_operand_mode[icode][1];
     enum machine_mode mode1 = insn_operand_mode[icode][2];
     rtx pat;
     rtx xop0 = op0, xop1 = op1;

     if (target)
       temp = target;
     else
       temp = gen_reg_rtx (mode);

     /* In case the insn wants input operands in modes different from
        the result, convert the operands.  */

     if (GET_MODE (op0) != VOIDmode
         && GET_MODE (op0) != mode0)
       xop0 = convert_to_mode (mode0, xop0, unsignedp);

     if (GET_MODE (xop1) != VOIDmode
         && GET_MODE (xop1) != mode1)
       xop1 = convert_to_mode (mode1, xop1, unsignedp);

     /* Now, if insn requires register operands, put operands into regs.  */

     if (! (*insn_operand_predicate[icode][1]) (xop0, mode0))
       xop0 = force_reg (mode0, xop0);

     if (! (*insn_operand_predicate[icode][2]) (xop1, mode1))
       xop1 = force_reg (mode1, xop1);

     if (! (*insn_operand_predicate[icode][0]) (temp, mode))
       temp = gen_reg_rtx (mode);

     pat = GEN_FCN (icode) (temp, xop0, xop1);
     if (pat)
       {
         emit_insn (pat);
         return temp;
       }
     else
       delete_insns_since (last);
   }

 /* It can't be open-coded in this mode.
    Use a library call if one is available and caller says that's ok.  */

 if (binoptab->handlers[(int) mode].lib_call
     && (methods == OPTAB_LIB || methods == OPTAB_LIB_WIDEN))
   {
     rtx insn_before, insn_first, insn_last;
     rtx funexp = gen_rtx (SYMBOL_REF, Pmode,
                           binoptab->handlers[(int) mode].lib_call);

     /* Pass the address through a pseudoreg, if desired,
        before the "beginning" of the library call.
        So this insn isn't "part of" the library call, in case that
        is deleted, or cse'd.  */
#ifndef NO_FUNCTION_CSE
     if (! flag_no_function_cse)
       funexp = copy_to_mode_reg (Pmode, funexp);
#endif

     insn_before = get_last_insn ();

     /* Cannot pass FUNEXP since emit_library_call insists
        on getting a SYMBOL_REF.  But cse will make this SYMBOL_REF
        be replaced with the copy we made just above.  */
     /* Pass 1 for NO_QUEUE so we don't lose any increments
        if the libcall is cse'd or moved.  */
     emit_library_call (gen_rtx (SYMBOL_REF, Pmode,
                                 binoptab->handlers[(int) mode].lib_call),
                        1, mode, 2, op0, mode, op1, mode);
     target = hard_libcall_value (mode);
     temp = copy_to_reg (target);

     if (insn_before == 0)
       insn_first = get_insns ();
     else
       insn_first = NEXT_INSN (insn_before);
     insn_last = get_last_insn ();

     REG_NOTES (insn_last)
       = gen_rtx (EXPR_LIST, REG_EQUAL,
                  gen_rtx (binoptab->code, mode, op0, op1),
                  gen_rtx (INSN_LIST, REG_RETVAL, insn_first,
                           REG_NOTES (insn_last)));
     REG_NOTES (insn_first)
       = gen_rtx (INSN_LIST, REG_LIBCALL, insn_last,
                  REG_NOTES (insn_first));
     return temp;
   }

 delete_insns_since (last);

 /* It can't be done in this mode.  Can we do it in a wider mode?  */

 if (! (methods == OPTAB_WIDEN || methods == OPTAB_LIB_WIDEN
        || methods == OPTAB_MUST_WIDEN))
   return 0;                   /* Caller says, don't even try.  */

 /* Compute the value of METHODS to pass to recursive calls.
    Don't allow widening to be tried recursively.  */

 methods = (methods == OPTAB_LIB_WIDEN ? OPTAB_LIB : OPTAB_DIRECT);

 /* Widening is now independent of specific machine modes.
    It is assumed that widening may be performed to any
    higher numbered mode in the same mode class.  */

 if (class == MODE_INT || class == MODE_FLOAT)
   {
     for (wider_mode = INC_MODE (mode);
          ((int) wider_mode < (int) MAX_MACHINE_MODE
           && GET_MODE_CLASS (wider_mode) == class);
          wider_mode = INC_MODE (wider_mode))
       {
         if ((binoptab->handlers[(int) wider_mode].insn_code
              != CODE_FOR_nothing)
             || (methods == OPTAB_LIB
                 && binoptab->handlers[(int) wider_mode].lib_call))
           {
             rtx xop0 = op0, xop1 = op1;
             int no_extend = 0;

             /* For certain operations, we need not actually extend
                the narrow operands, as long as we will truncate
                the results to the same narrowness.  */

             if (binoptab == ior_optab || binoptab == and_optab
                 || binoptab == xor_optab || binoptab == andcb_optab
                 || binoptab == add_optab || binoptab == sub_optab
                 || binoptab == smul_optab || binoptab == umul_optab
                 || binoptab == ashl_optab || binoptab == lshl_optab)
               no_extend = 1;

             if (GET_MODE (xop0) != VOIDmode)
               {
                 if (no_extend)
                   {
                     temp = force_reg (GET_MODE (xop0), xop0);
                     xop0 = gen_rtx (SUBREG, wider_mode, temp, 0);
                   }
                 else
                   {
                     temp = gen_reg_rtx (wider_mode);
                     convert_move (temp, xop0, unsignedp);
                     xop0 = temp;
                   }
               }
             if (GET_MODE (xop1) != VOIDmode)
               {
                 if (no_extend)
                   {
                     temp = force_reg (GET_MODE (xop1), xop1);
                     xop1 = gen_rtx (SUBREG, wider_mode, temp, 0);
                   }
                 else
                   {
                     temp = gen_reg_rtx (wider_mode);
                     convert_move (temp, xop1, unsignedp);
                     xop1 = temp;
                   }
               }

             temp = expand_binop (wider_mode, binoptab, xop0, xop1, 0,
                                  unsignedp, methods);
             if (temp)
               {
                 if (class == MODE_FLOAT)
                   {
                     if (target == 0)
                       target = gen_reg_rtx (mode);
                     convert_move (target, temp, 0);
                     return target;
                   }
                 else
                   return gen_lowpart (mode, temp);
               }
             else
               delete_insns_since (last);
           }
       }
   }

 return 0;
}
\f
/* Expand a binary operator which has both signed and unsigned forms.
  UOPTAB is the optab for unsigned operations, and SOPTAB is for
  signed operations.

  If we widen unsigned operands, we may use a signed wider operation instead
  of an unsigned wider operation, since the result would be the same.  */

rtx
sign_expand_binop (mode, uoptab, soptab, op0, op1, target, unsignedp, methods)
   enum machine_mode mode;
   optab uoptab, soptab;
   rtx op0, op1, target;
   int unsignedp;
   enum optab_methods methods;
{
 register rtx temp;
 optab direct_optab = unsignedp ? uoptab : soptab;
 struct optab wide_soptab;

 /* Do it without widening, if possible.  */
 temp = expand_binop (mode, direct_optab, op0, op1, target,
                      unsignedp, OPTAB_DIRECT);
 if (temp || methods == OPTAB_DIRECT)
   return temp;

 /* Try widening to a signed int.  Make a fake signed optab that
    hides any signed insn for direct use.  */
 wide_soptab = *soptab;
 wide_soptab.handlers[(int) mode].insn_code = CODE_FOR_nothing;
 wide_soptab.handlers[(int) mode].lib_call = 0;

 temp = expand_binop (mode, &wide_soptab, op0, op1, target,
                      unsignedp, OPTAB_WIDEN);

 /* For unsigned operands, try widening to an unsigned int.  */
 if (temp == 0 && unsignedp)
   temp = expand_binop (mode, uoptab, op0, op1, target,
                        unsignedp, OPTAB_WIDEN);
 if (temp || methods == OPTAB_WIDEN)
   return temp;

 /* Use the right width lib call if that exists.  */
 temp = expand_binop (mode, direct_optab, op0, op1, target, unsignedp, OPTAB_LIB);
 if (temp || methods == OPTAB_LIB)
   return temp;

 /* Must widen and use a lib call, use either signed or unsigned.  */
 temp = expand_binop (mode, &wide_soptab, op0, op1, target,
                      unsignedp, methods);
 if (temp != 0)
   return temp;
 if (unsignedp)
   return expand_binop (mode, uoptab, op0, op1, target,
                        unsignedp, methods);
 return 0;
}
\f
/* Generate code to perform an operation specified by BINOPTAB
  on operands OP0 and OP1, with two results to TARG1 and TARG2.
  We assume that the order of the operands for the instruction
  is TARG0, OP0, OP1, TARG1, which would fit a pattern like
  [(set TARG0 (operate OP0 OP1)) (set TARG1 (operate ...))].

  Either TARG0 or TARG1 may be zero, but what that means is that
  that result is not actually wanted.  We will generate it into
  a dummy pseudo-reg and discard it.  They may not both be zero.

  Returns 1 if this operation can be performed; 0 if not.  */

int
expand_twoval_binop (binoptab, op0, op1, targ0, targ1, unsignedp)
    optab binoptab;
    rtx op0, op1;
    rtx targ0, targ1;
    int unsignedp;
{
 enum machine_mode mode = GET_MODE (targ0 ? targ0 : targ1);
 enum mode_class class;
 enum machine_mode wider_mode;

 class = GET_MODE_CLASS (mode);

 op0 = protect_from_queue (op0, 0);
 op1 = protect_from_queue (op1, 0);

 if (flag_force_mem)
   {
     op0 = force_not_mem (op0);
     op1 = force_not_mem (op1);
   }

 if (targ0)
   targ0 = protect_from_queue (targ0, 1);
 else
   targ0 = gen_reg_rtx (mode);
 if (targ1)
   targ1 = protect_from_queue (targ1, 1);
 else
   targ1 = gen_reg_rtx (mode);

 if (binoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
   {
     emit_insn (GEN_FCN (binoptab->handlers[(int) mode].insn_code)
                (targ0, op0, op1, targ1));
     return 1;
   }

 /* It can't be done in this mode.  Can we do it in a wider mode?  */

 if (class == MODE_INT || class == MODE_FLOAT)
   {
     for (wider_mode = INC_MODE (mode);
          ((int) wider_mode < (int) MAX_MACHINE_MODE
           && GET_MODE_CLASS (wider_mode) == class);
          wider_mode = INC_MODE (wider_mode))
       {
         if (binoptab->handlers[(int) wider_mode].insn_code
             != CODE_FOR_nothing)
           {
             expand_twoval_binop_convert (binoptab, wider_mode, op0, op1,
                                          targ0, targ1, unsignedp);
             return 1;
           }
       }
   }
 return 0;
}

int
expand_twoval_binop_convert (binoptab, mode, op0, op1, targ0, targ1, unsignedp)
    register optab binoptab;
    register rtx op0, op1, targ0, targ1;
    int unsignedp;
{
 register rtx t0 = gen_reg_rtx (SImode);
 register rtx t1 = gen_reg_rtx (SImode);
 register rtx temp;

 temp = gen_reg_rtx (SImode);
 convert_move (temp, op0, unsignedp);
 op0 = temp;
 temp = gen_reg_rtx (SImode);
 convert_move (temp, op1, unsignedp);
 op1 = temp;

 expand_twoval_binop (binoptab, op0, op1, t0, t1, unsignedp);
 convert_move (targ0, t0, unsignedp);
 convert_move (targ1, t1, unsignedp);
 return 1;
}
\f
/* Generate code to perform an operation specified by UNOPTAB
  on operand OP0, with result having machine-mode MODE.

  UNSIGNEDP is for the case where we have to widen the operands
  to perform the operation.  It says to use zero-extension.

  If TARGET is nonzero, the value
  is generated there, if it is convenient to do so.
  In all cases an rtx is returned for the locus of the value;
  this may or may not be TARGET.  */

rtx
expand_unop (mode, unoptab, op0, target, unsignedp)
    enum machine_mode mode;
    optab unoptab;
    rtx op0;
    rtx target;
    int unsignedp;
{
 enum mode_class class;
 enum machine_mode wider_mode;
 register rtx temp;

 class = GET_MODE_CLASS (mode);

 op0 = protect_from_queue (op0, 0);

 if (flag_force_mem)
   {
     op0 = force_not_mem (op0);
   }

 if (target)
   target = protect_from_queue (target, 1);

 if (unoptab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
   {
     int icode = (int) unoptab->handlers[(int) mode].insn_code;
     enum machine_mode mode0 = insn_operand_mode[icode][1];

     if (target)
       temp = target;
     else
       temp = gen_reg_rtx (mode);

     if (GET_MODE (op0) != VOIDmode
         && GET_MODE (op0) != mode0)
       op0 = convert_to_mode (mode0, op0, unsignedp);

     /* Now, if insn requires register operands, put operands into regs.  */

     if (! (*insn_operand_predicate[icode][1]) (op0, mode0))
       op0 = force_reg (mode0, op0);

     if (! (*insn_operand_predicate[icode][0]) (temp, mode))
       temp = gen_reg_rtx (mode);

     emit_insn (GEN_FCN (icode) (temp, op0));
     return temp;
   }
 else if (unoptab->handlers[(int) mode].lib_call)
   {
     rtx insn_before, insn_last;
     rtx funexp = gen_rtx (SYMBOL_REF, Pmode,
                           unoptab->handlers[(int) mode].lib_call);

     /* Pass the address through a pseudoreg, if desired,
        before the "beginning" of the library call (for deletion).  */
#ifndef NO_FUNCTION_CSE
     if (! flag_no_function_cse)
       funexp = copy_to_mode_reg (Pmode, funexp);
#endif

     insn_before = get_last_insn ();

     /* Cannot pass FUNEXP since  emit_library_call insists
        on getting a SYMBOL_REF.  But cse will make this SYMBOL_REF
        be replaced with the copy we made just above.  */
     /* Pass 1 for NO_QUEUE so we don't lose any increments
        if the libcall is cse'd or moved.  */
     emit_library_call (gen_rtx (SYMBOL_REF, Pmode,
                                 unoptab->handlers[(int) mode].lib_call),
                        1, mode, 1, op0, mode);
     target = hard_libcall_value (mode);
     temp = copy_to_reg (target);
     insn_last = get_last_insn ();
     REG_NOTES (insn_last)
       = gen_rtx (EXPR_LIST, REG_EQUAL,
                  gen_rtx (unoptab->code, mode, op0),
                  gen_rtx (INSN_LIST, REG_RETVAL,
                           NEXT_INSN (insn_before),
                           REG_NOTES (insn_last)));
     REG_NOTES (NEXT_INSN (insn_before))
       = gen_rtx (INSN_LIST, REG_LIBCALL, insn_last,
                  REG_NOTES (NEXT_INSN (insn_before)));
     return temp;
   }

 /* It can't be done in this mode.  Can we do it in a wider mode?  */

 if (class == MODE_INT || class == MODE_FLOAT)
   {
     for (wider_mode = INC_MODE (mode);
          ((int) wider_mode < (int) MAX_MACHINE_MODE
           && GET_MODE_CLASS (wider_mode) == class);
          wider_mode = INC_MODE (wider_mode))
       {
         if ((unoptab->handlers[(int) wider_mode].insn_code
              != CODE_FOR_nothing)
             || unoptab->handlers[(int) wider_mode].lib_call)
           {
             if (GET_MODE (op0) != VOIDmode)
               {
                 temp = gen_reg_rtx (wider_mode);
                 convert_move (temp, op0, unsignedp);
                 op0 = temp;
               }
             
             target = expand_unop (wider_mode, unoptab, op0, 0, unsignedp);
             if (class == MODE_FLOAT)
               {
                 if (target == 0)
                   target = gen_reg_rtx (mode);
                 convert_move (target, temp, 0);
                 return target;
               }
             else
               return gen_lowpart (mode, target);
           }
       }
   }

 return 0;
}
\f
/* Generate an instruction whose insn-code is INSN_CODE,
  with two operands: an output TARGET and an input OP0.
  TARGET *must* be nonzero, and the output is always stored there.
  CODE is an rtx code such that (CODE OP0) is an rtx that describes
  the value that is stored into TARGET.  */

void
emit_unop_insn (icode, target, op0, code)
    int icode;
    rtx target;
    rtx op0;
    enum rtx_code code;
{
 register rtx temp;
 enum machine_mode mode0 = insn_operand_mode[icode][1];
 rtx insn;
 rtx prev_insn;

 temp = target = protect_from_queue (target, 1);

 op0 = protect_from_queue (op0, 0);

 if (flag_force_mem)
   op0 = force_not_mem (op0);

 /* Now, if insn requires register operands, put operands into regs.  */

 if (! (*insn_operand_predicate[icode][1]) (op0, mode0))
   op0 = force_reg (mode0, op0);

 if (! (*insn_operand_predicate[icode][0]) (temp, GET_MODE (temp))
     || (flag_force_mem && GET_CODE (temp) == MEM))
   temp = gen_reg_rtx (GET_MODE (temp));

 prev_insn = get_last_insn ();
 insn = emit_insn (GEN_FCN (icode) (temp, op0));

 /* If we just made a multi-insn sequence,
    record in the last insn an equivalent expression for its value
    and a pointer to the first insn.  This makes cse possible.  */
 if (code != UNKNOWN && PREV_INSN (insn) != prev_insn)
   REG_NOTES (insn)
     = gen_rtx (EXPR_LIST, REG_EQUAL,
                gen_rtx (code, GET_MODE (temp), op0),
                REG_NOTES (insn));
 
 if (temp != target)
   emit_move_insn (target, temp);
}
\f
/* Generate code to store zero in X.  */

void
emit_clr_insn (x)
    rtx x;
{
 emit_move_insn (x, const0_rtx);
}

/* Generate code to store 1 in X
  assuming it contains zero beforehand.  */

void
emit_0_to_1_insn (x)
    rtx x;
{
 emit_move_insn (x, const1_rtx);
}

/* Generate code to compare X with Y
  so that the condition codes are set.

  UNSIGNEDP nonzero says that X and Y are unsigned;
  this matters if they need to be widened.

  If they have mode BLKmode, then SIZE specifies the size of both X and Y,
  and ALIGN specifies the known shared alignment of X and Y.  */

void
emit_cmp_insn (x, y, size, unsignedp, align)
    rtx x, y;
    rtx size;
    int unsignedp;
    int align;
{
 enum machine_mode mode = GET_MODE (x);
 enum mode_class class;
 enum machine_mode wider_mode;

 if (mode == VOIDmode) mode = GET_MODE (y);
 /* They could both be VOIDmode if both args are immediate constants,
    but we should fold that at an earlier stage.
    With no special code here, this will call abort,
    reminding the programmer to implement such folding.  */

 class = GET_MODE_CLASS (mode);

 if (mode != BLKmode && flag_force_mem)
   {
     x = force_not_mem (x);
     y = force_not_mem (y);
   }

 /* Handle all BLKmode compares.  */

 if (mode == BLKmode)
   {
     emit_queue ();
     x = protect_from_queue (x, 0);
     y = protect_from_queue (y, 0);

     if (size == 0)
       abort ();
#ifdef HAVE_cmpstrqi
     if (HAVE_cmpstrqi
         && GET_CODE (size) == CONST_INT
         && INTVAL (size) < (1 << GET_MODE_BITSIZE (QImode)))
       emit_insn (gen_cmpstrqi (x, y, size,
                                gen_rtx (CONST_INT, VOIDmode, align)));
     else
#endif
#ifdef HAVE_cmpstrhi
     if (HAVE_cmpstrhi
         && GET_CODE (size) == CONST_INT
         && INTVAL (size) < (1 << GET_MODE_BITSIZE (HImode)))
       emit_insn (gen_cmpstrhi (x, y, size,
                                gen_rtx (CONST_INT, VOIDmode, align)));
     else
#endif
#ifdef HAVE_cmpstrsi
     if (HAVE_cmpstrsi)
       emit_insn (gen_cmpstrsi (x, y, convert_to_mode (SImode, size, 1),
                                gen_rtx (CONST_INT, VOIDmode, align)));
     else
#endif
       {
#ifdef TARGET_MEM_FUNCTIONS
         emit_library_call (gen_rtx (SYMBOL_REF, Pmode, "memcmp"), 0, 
                            SImode, 3,
                            XEXP (x, 0), Pmode, XEXP (y, 0), Pmode,
                            size, Pmode);
#else
         emit_library_call (gen_rtx (SYMBOL_REF, Pmode, "bcmp"), 0,
                            SImode, 3,
                            XEXP (x, 0), Pmode, XEXP (y, 0), Pmode,
                            size, Pmode);
#endif
         emit_cmp_insn (hard_libcall_value (SImode), const0_rtx, 0, 0, 0);
       }
     return;
   }

 /* Handle some compares against zero.  */

 if (y == CONST0_RTX (mode)
     && tst_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
   {
     int icode = (int) tst_optab->handlers[(int) mode].insn_code;

     emit_queue ();
     x = protect_from_queue (x, 0);
     y = protect_from_queue (y, 0);

     /* Now, if insn requires register operands, put operands into regs.  */
     if (! (*insn_operand_predicate[icode][0])
         (x, insn_operand_mode[icode][0]))
       x = force_reg (insn_operand_mode[icode][0], x);

     emit_insn (GEN_FCN (icode) (x));
     return;
   }

 /* Handle compares for which there is a directly suitable insn.  */

 if (cmp_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
   {
     int icode = (int) cmp_optab->handlers[(int) mode].insn_code;

     emit_queue ();
     x = protect_from_queue (x, 0);
     y = protect_from_queue (y, 0);

     /* Now, if insn requires register operands, put operands into regs.  */
     if (! (*insn_operand_predicate[icode][0])
         (x, insn_operand_mode[icode][0]))
       x = force_reg (insn_operand_mode[icode][0], x);

     if (! (*insn_operand_predicate[icode][1])
         (y, insn_operand_mode[icode][1]))
       y = force_reg (insn_operand_mode[icode][1], y);

     emit_insn (GEN_FCN (icode) (x, y));
     return;
   }

 /* Try widening if we can find a direct insn that way.  */

 if (class == MODE_INT || class == MODE_FLOAT)
   {
     for (wider_mode = INC_MODE (mode);
          ((int) wider_mode < (int) MAX_MACHINE_MODE
           && GET_MODE_CLASS (wider_mode) == class);
          wider_mode = INC_MODE (wider_mode))
       {
         if (cmp_optab->handlers[(int) wider_mode].insn_code
             != CODE_FOR_nothing)
           {
             x = convert_to_mode (wider_mode, x, unsignedp);
             y = convert_to_mode (wider_mode, y, unsignedp);
             emit_cmp_insn (x, y, 0, unsignedp, align);
             return;
           }
       }
   }

 /* Handle a lib call just for the mode we are using.  */

 if (cmp_optab->handlers[(int) mode].lib_call)
   {
     char *string = cmp_optab->handlers[(int) mode].lib_call;
     /* If we want unsigned, and this mode has a distinct unsigned
        comparison routine, use that.  */
     if (unsignedp && ucmp_optab->handlers[(int) mode].lib_call)
       string = ucmp_optab->handlers[(int) mode].lib_call;

     emit_library_call (gen_rtx (SYMBOL_REF, Pmode, string), 0,
                        SImode, 2, x, mode, y, mode);

     /* Integer comparison returns a result that must be compared against 1,
        so that even if we do an unsigned compare afterward,
        there is still a value that can represent the result "less than".  */
     if (GET_MODE_CLASS (mode) == MODE_INT)
       emit_cmp_insn (hard_libcall_value (SImode), const1_rtx, 0, unsignedp, 0);
     else
       emit_cmp_insn (hard_libcall_value (SImode), const0_rtx, 0, 0, 0);
     return;
   }

 /* Try widening and then using a libcall.  */

 if (class == MODE_FLOAT)
   {
     for (wider_mode = INC_MODE (mode);
          ((int) wider_mode < (int) MAX_MACHINE_MODE
           && GET_MODE_CLASS (wider_mode) == class);
          wider_mode = INC_MODE (wider_mode))
       {
         if ((cmp_optab->handlers[(int) wider_mode].insn_code
              != CODE_FOR_nothing)
             || (cmp_optab->handlers[(int) wider_mode].lib_call != 0))
           {
             x = convert_to_mode (wider_mode, x, unsignedp);
             y = convert_to_mode (wider_mode, y, unsignedp);
             emit_cmp_insn (x, y, 0, unsignedp, align);
           }
       }
     return;
   }

 abort ();
}
\f
/* These three functions generate an insn body and return it
  rather than emitting the insn.

  They do not protect from queued increments,
  because they may be used 1) in protect_from_queue itself
  and 2) in other passes where there is no queue.  */

/* Generate and return an insn body to add Y to X.  */

rtx
gen_add2_insn (x, y)
    rtx x, y;
{
 return (GEN_FCN (add_optab->handlers[(int) GET_MODE (x)].insn_code)
         (x, x, y));
}

int
have_add2_insn (mode)
    enum machine_mode mode;
{
 return add_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing;
}

/* Generate and return an insn body to subtract Y from X.  */

rtx
gen_sub2_insn (x, y)
    rtx x, y;
{
 return (GEN_FCN (sub_optab->handlers[(int) GET_MODE (x)].insn_code)
         (x, x, y));
}

int
have_sub2_insn (mode)
    enum machine_mode mode;
{
 return add_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing;
}

/* Generate the body of an instruction to copy Y into X.  */

rtx
gen_move_insn (x, y)
    rtx x, y;
{
 register enum machine_mode mode = GET_MODE (x);
 if (mode == VOIDmode)
   mode = GET_MODE (y);
 return (GEN_FCN (mov_optab->handlers[(int) mode].insn_code) (x, y));
}
\f
#if 0
/* Tables of patterns for extending one integer mode to another.  */
enum insn_code zero_extend_optab[MAX_MACHINE_MODE][MAX_MACHINE_MODE];
enum insn_code sign_extend_optab[MAX_MACHINE_MODE][MAX_MACHINE_MODE];

/* Generate the body of an insn to extend Y (with mode MFROM)
  into X (with mode MTO).  Do zero-extension if UNSIGNEDP is nonzero.  */

rtx
gen_extend_insn (x, y, mto, mfrom, unsignedp)
    rtx x, y;
    enum machine_mode mto, mfrom;
    int unsignedp;
{
 return (GEN_FCN ((unsignedp ? zero_extend_optab : sign_extend_optab)
                  [(int)mto][(int)mfrom])
         (x, y));
}

static void
init_extends ()
{
 bzero (sign_extend_optab, sizeof sign_extend_optab);
 bzero (zero_extend_optab, sizeof zero_extend_optab);
 sign_extend_optab[(int) SImode][(int) HImode] = CODE_FOR_extendhisi2;
 sign_extend_optab[(int) SImode][(int) QImode] = CODE_FOR_extendqisi2;
 sign_extend_optab[(int) HImode][(int) QImode] = CODE_FOR_extendqihi2;
 zero_extend_optab[(int) SImode][(int) HImode] = CODE_FOR_zero_extendhisi2;
 zero_extend_optab[(int) SImode][(int) QImode] = CODE_FOR_zero_extendqisi2;
 zero_extend_optab[(int) HImode][(int) QImode] = CODE_FOR_zero_extendqihi2;
}
#endif
\f
/* can_fix_p and can_float_p say whether the target machine
  can directly convert a given fixed point type to
  a given floating point type, or vice versa.
  The returned value is the CODE_FOR_... value to use,
  or CODE_FOR_nothing if these modes cannot be directly converted.  */

static enum insn_code fixtab[2][2][2];
static enum insn_code fixtrunctab[2][2][2];
static enum insn_code floattab[2][2];

/* *TRUNCP_PTR is set to 1 if it is necessary to output
  an explicit FTRUNC insn before the fix insn; otherwise 0.  */

static enum insn_code
can_fix_p (fixmode, fltmode, unsignedp, truncp_ptr)
    enum machine_mode fltmode, fixmode;
    int unsignedp;
    int *truncp_ptr;
{
 *truncp_ptr = 0;
 if (fixtrunctab[fltmode != SFmode][fixmode == DImode][unsignedp]
     != CODE_FOR_nothing)
   return fixtrunctab[fltmode != SFmode][fixmode == DImode][unsignedp];
 if (ftrunc_optab->handlers[(int) fltmode].insn_code != CODE_FOR_nothing)
   {
     *truncp_ptr = 1;
     return fixtab[fltmode != SFmode][fixmode == DImode][unsignedp];
   }
 return CODE_FOR_nothing;
}

static enum insn_code
can_float_p (fltmode, fixmode)
    enum machine_mode fixmode, fltmode;
{
 return floattab[fltmode != SFmode][fixmode == DImode];
}

void
init_fixtab ()
{
 enum insn_code *p;
 for (p = fixtab[0][0];
      p < fixtab[0][0] + sizeof fixtab / sizeof (fixtab[0][0][0]); 
      p++)
   *p = CODE_FOR_nothing;
 for (p = fixtrunctab[0][0];
      p < fixtrunctab[0][0] + sizeof fixtrunctab / sizeof (fixtrunctab[0][0][0]); 
      p++)
   *p = CODE_FOR_nothing;

#ifdef HAVE_fixsfsi2
 if (HAVE_fixsfsi2)
   fixtab[0][0][0] = CODE_FOR_fixsfsi2;
#endif
#ifdef HAVE_fixsfdi2
 if (HAVE_fixsfdi2)
   fixtab[0][1][0] = CODE_FOR_fixsfdi2;
#endif
#ifdef HAVE_fixdfsi2
 if (HAVE_fixdfsi2)
   fixtab[1][0][0] = CODE_FOR_fixdfsi2;
#endif
#ifdef HAVE_fixdfdi2
 if (HAVE_fixdfdi2)
   fixtab[1][1][0] = CODE_FOR_fixdfdi2;
#endif

#ifdef HAVE_fixunssfsi2
 if (HAVE_fixunssfsi2)
   fixtab[0][0][1] = CODE_FOR_fixunssfsi2;
#endif
#ifdef HAVE_fixunssfdi2
 if (HAVE_fixunssfdi2)
   fixtab[0][1][1] = CODE_FOR_fixunssfdi2;
#endif
#ifdef HAVE_fixunsdfsi2
 if (HAVE_fixunsdfsi2)
   fixtab[1][0][1] = CODE_FOR_fixunsdfsi2;
#endif
#ifdef HAVE_fixunsdfdi2
 if (HAVE_fixunsdfdi2)
   fixtab[1][1][1] = CODE_FOR_fixunsdfdi2;
#endif

#ifdef HAVE_fix_truncsfsi2
 if (HAVE_fix_truncsfsi2)
   fixtrunctab[0][0][0] = CODE_FOR_fix_truncsfsi2;
#endif
#ifdef HAVE_fix_truncsfdi2
 if (HAVE_fix_truncsfdi2)
   fixtrunctab[0][1][0] = CODE_FOR_fix_truncsfdi2;
#endif
#ifdef HAVE_fix_truncdfsi2
 if (HAVE_fix_truncdfsi2)
   fixtrunctab[1][0][0] = CODE_FOR_fix_truncdfsi2;
#endif
#ifdef HAVE_fix_truncdfdi2
 if (HAVE_fix_truncdfdi2)
   fixtrunctab[1][1][0] = CODE_FOR_fix_truncdfdi2;
#endif

#ifdef HAVE_fixuns_truncsfsi2
 if (HAVE_fixuns_truncsfsi2)
   fixtrunctab[0][0][1] = CODE_FOR_fixuns_truncsfsi2;
#endif
#ifdef HAVE_fixuns_truncsfdi2
 if (HAVE_fixuns_truncsfdi2)
   fixtrunctab[0][1][1] = CODE_FOR_fixuns_truncsfdi2;
#endif
#ifdef HAVE_fixuns_truncdfsi2
 if (HAVE_fixuns_truncdfsi2)
   fixtrunctab[1][0][1] = CODE_FOR_fixuns_truncdfsi2;
#endif
#ifdef HAVE_fixuns_truncdfdi2
 if (HAVE_fixuns_truncdfdi2)
   fixtrunctab[1][1][1] = CODE_FOR_fixuns_truncdfdi2;
#endif

#ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC
 /* This flag says the same insns that convert to a signed fixnum
    also convert validly to an unsigned one.  */
 {
   int i;
   int j;
   for (i = 0; i < 2; i++)
     for (j = 0; j < 2; j++)
       fixtrunctab[i][j][1] = fixtrunctab[i][j][0];
 }
#endif
}

void
init_floattab ()
{
 enum insn_code *p;
 for (p = floattab[0];
      p < floattab[0] + sizeof floattab / sizeof (floattab[0][0]); 
      p++)
   *p = CODE_FOR_nothing;

#ifdef HAVE_floatsisf2
 if (HAVE_floatsisf2)
   floattab[0][0] = CODE_FOR_floatsisf2;
#endif
#ifdef HAVE_floatdisf2
 if (HAVE_floatdisf2)
   floattab[0][1] = CODE_FOR_floatdisf2;
#endif
#ifdef HAVE_floatsidf2
 if (HAVE_floatsidf2)
   floattab[1][0] = CODE_FOR_floatsidf2;
#endif
#ifdef HAVE_floatdidf2
 if (HAVE_floatdidf2)
   floattab[1][1] = CODE_FOR_floatdidf2;
#endif
}
\f
/* Generate code to convert FROM to floating point
  and store in TO.  FROM must be fixed point.
  UNSIGNEDP nonzero means regard FROM as unsigned.
  Normally this is done by correcting the final value
  if it is negative.  */

void
expand_float (real_to, from, unsignedp)
    rtx real_to, from;
    int unsignedp;
{
 enum insn_code icode;
 register rtx to;

 /* Constants should get converted in `fold'.
    We lose here since we don't know the mode.  */
 if (GET_MODE (from) == VOIDmode)
   abort ();

 to = real_to = protect_from_queue (real_to, 1);
 from = protect_from_queue (from, 0);

 if (flag_force_mem)
   {
     from = force_not_mem (from);
   }

 /* If we are about to do some arithmetic to correct for an
    unsigned operand, do it in a pseudo-register.  */

 if (unsignedp
     && ! (GET_CODE (to) == REG && REGNO (to) >= FIRST_PSEUDO_REGISTER))
   to = gen_reg_rtx (GET_MODE (to));

 /* Now do the basic conversion.  Do it in the specified modes if possible;
    otherwise convert either input, output or both with wider mode;
    otherwise use a library call.  */

 if ((icode = can_float_p (GET_MODE (to), GET_MODE (from)))
     != CODE_FOR_nothing)
   {
     emit_unop_insn (icode, to, from, FLOAT);
   }
 else if (GET_MODE (to) == SFmode
          && ((icode = can_float_p (DFmode, GET_MODE (from)))
              != CODE_FOR_nothing))
   {
     to = gen_reg_rtx (DFmode);
     emit_unop_insn (icode, to, from, FLOAT);
   }
 /* If we can't float a SI, maybe we can float a DI.
    If so, convert to DI and then float.  */
 else if (GET_MODE (from) != DImode
          && (can_float_p (GET_MODE (to), DImode) != CODE_FOR_nothing
              || can_float_p (DFmode, DImode) != CODE_FOR_nothing))
   {
     register rtx tem = gen_reg_rtx (DImode);
     convert_move (tem, from, unsignedp);
     from = tem;
     /* If we extend FROM then we don't need to correct
        the final value for unsignedness.  */
     unsignedp = 0;

     if ((icode = can_float_p (GET_MODE (to), GET_MODE (from)))
         != CODE_FOR_nothing)
       {
         emit_unop_insn (icode, to, from, FLOAT);
       }
     else if ((icode = can_float_p (DFmode, DImode))
               != CODE_FOR_nothing)
       {
         to = gen_reg_rtx (DFmode);
         emit_unop_insn (icode, to, from, FLOAT);
       }
   }
 /* No hardware instruction available; call a library
    to convert from SImode or DImode into DFmode.  */
 else
   {
     if (GET_MODE_SIZE (GET_MODE (from)) < GET_MODE_SIZE (SImode))
       {
         from = convert_to_mode (SImode, from, unsignedp);
         unsignedp = 0;
       }
     emit_library_call (gen_rtx (SYMBOL_REF, Pmode,
                                 (GET_MODE (from) == SImode ? "__floatsidf"
                                  : "__floatdidf")),
                        0, DFmode, 1, from, GET_MODE (from));
     to = copy_to_reg (hard_libcall_value (DFmode));
   }

 /* If FROM was unsigned but we treated it as signed,
    then in the case where it is negative (and therefore TO is negative),
    correct its value by 2**bitwidth.  */

 if (unsignedp)
   {
     rtx label = gen_label_rtx ();
     rtx temp;
     REAL_VALUE_TYPE offset;

     do_pending_stack_adjust ();
     emit_cmp_insn (to, GET_MODE (to) == DFmode ? dconst0_rtx : fconst0_rtx,
                    0, 0, 0);
     emit_jump_insn (gen_bge (label));
     offset = REAL_VALUE_LDEXP (1.0, GET_MODE_BITSIZE (GET_MODE (from)));
     temp = expand_binop (GET_MODE (to), add_optab, to,
                          immed_real_const_1 (offset, GET_MODE (to)),
                          to, 0, OPTAB_LIB_WIDEN);
     if (temp != to)
       emit_move_insn (to, temp);
     do_pending_stack_adjust ();
     emit_label (label);
   }

 /* Copy result to requested destination
    if we have been computing in a temp location.  */

 if (to != real_to)
   {
     if (GET_MODE (real_to) == GET_MODE (to))
       emit_move_insn (real_to, to);
     else
       convert_move (real_to, to, 0);
   }
}
\f
/* expand_fix: generate code to convert FROM to fixed point
  and store in TO.  FROM must be floating point.  */

static rtx
ftruncify (x)
    rtx x;
{
 rtx temp = gen_reg_rtx (GET_MODE (x));
 return expand_unop (GET_MODE (x), ftrunc_optab, x, temp, 0);
}

void
expand_fix (to, from, unsignedp)
    register rtx to, from;
    int unsignedp;
{
 enum insn_code icode;
 register rtx target;
 int must_trunc = 0;

 while (1)
   {
     icode = can_fix_p (GET_MODE (to), GET_MODE (from), unsignedp, &must_trunc);
     if (icode != CODE_FOR_nothing)
       {
         if (must_trunc)
           from = ftruncify (from);

         emit_unop_insn (icode, to, from, FIX);
         return;
       }

#if 0  /* Turned off.  It fails because the positive numbers
         that become temporarily negative are rounded up instead of down.  */

     /* If no insns for unsigned conversion,
        we can go via a signed number.
        But make sure we won't overflow in the compiler.  */
     if (unsignedp && GET_MODE_BITSIZE (GET_MODE (to)) <= HOST_BITS_PER_INT
         /* Make sure we won't lose significant bits doing this.  */
         && GET_MODE_BITSIZE (GET_MODE (from)) > GET_MODE_BITSIZE (GET_MODE (to)))
       {
         icode = can_fix_p (GET_MODE (to), GET_MODE (from),
                            0, &must_trunc);

         if (icode != CODE_FOR_nothing)
           {
             REAL_VALUE_TYPE offset;
             rtx temp, temp1;
             int bitsize = GET_MODE_BITSIZE (GET_MODE (to));

             if (must_trunc)
               from = ftruncify (from);

             /* Subtract 2**(N-1), convert to signed number,
                then add 2**(N-1).  */
             offset = REAL_VALUE_LDEXP (1.0, bitsize - 1);
             temp = expand_binop (GET_MODE (from), sub_optab, from,
                                  immed_real_const_1 (offset, GET_MODE (from)),
                                  0, 0, OPTAB_LIB_WIDEN);

             temp1 = gen_reg_rtx (GET_MODE (to));
             emit_unop_insn (icode, temp1, temp, FIX);
             temp = expand_binop (GET_MODE (to), add_optab, temp1,
                                  gen_rtx (CONST_INT, VOIDmode,
                                           1 << (bitsize - 1)),
                                  to, 1, OPTAB_LIB_WIDEN);
             if (temp != to)
               emit_move_insn (to, temp);
             return;
           }
       }
#endif
     icode = can_fix_p (DImode, GET_MODE (from), unsignedp, &must_trunc);

     if (GET_MODE (to) != DImode && icode != CODE_FOR_nothing)
       {
         register rtx temp = gen_reg_rtx (DImode);

         if (must_trunc)
           from = ftruncify (from);
         emit_unop_insn (icode, temp, from, FIX);
         convert_move (to, temp, unsignedp);
         return;
       }

     /* If FROM is not DFmode, convert to DFmode and try again from there.  */
     if (GET_MODE (from) == DFmode)
       break;

     from = convert_to_mode (DFmode, from, 0);
   }

 /* We can't do it with an insn, so use a library call.
    The mode of FROM is known to be DFmode.  */

 to = protect_from_queue (to, 1);
 from = protect_from_queue (from, 0);

 if (flag_force_mem)
   from = force_not_mem (from);

 if (GET_MODE (to) != DImode)
   {
     emit_library_call (gen_rtx (SYMBOL_REF, Pmode,
                                 unsignedp ? "__fixunsdfsi"
                                 : "__fixdfsi"),
                        0, SImode, 1, from, DFmode);
     target = hard_libcall_value (SImode);
   }
 else
   {
     emit_library_call (gen_rtx (SYMBOL_REF, Pmode,
                                 unsignedp ? "__fixunsdfdi"
                                 : "__fixdfdi"),
                        0, DImode, 1, from, DFmode);
     target = hard_libcall_value (DImode);
   }

 if (GET_MODE (to) == GET_MODE (target))
   emit_move_insn (to, target);
 else
   convert_move (to, target, 0);
}
\f
static optab
init_optab (code)
    enum rtx_code code;
{
 int i;
 optab op = (optab) malloc (sizeof (struct optab));
 op->code = code;
 for (i = 0; i < NUM_MACHINE_MODES; i++)
   {
     op->handlers[i].insn_code = CODE_FOR_nothing;
     op->handlers[i].lib_call = 0;
   }
 return op;
}

/* Call this once to initialize the contents of the optabs
  appropriately for the current target machine.  */

void
init_optabs ()
{
 init_fixtab ();
 init_floattab ();
 init_comparisons ();
/*  init_extends (); */

 add_optab = init_optab (PLUS);
 sub_optab = init_optab (MINUS);
 smul_optab = init_optab (MULT);
 umul_optab = init_optab (UMULT);
 smul_widen_optab = init_optab (MULT);
 umul_widen_optab = init_optab (UMULT);
 sdiv_optab = init_optab (DIV);
 sdivmod_optab = init_optab (UNKNOWN);
 udiv_optab = init_optab (UDIV);
 udivmod_optab = init_optab (UNKNOWN);
 smod_optab = init_optab (MOD);
 umod_optab = init_optab (UMOD);
 flodiv_optab = init_optab (DIV);
 ftrunc_optab = init_optab (UNKNOWN);
 and_optab = init_optab (AND);
 andcb_optab = init_optab (UNKNOWN);
 ior_optab = init_optab (IOR);
 xor_optab = init_optab (XOR);
 ashl_optab = init_optab (ASHIFT);
 ashr_optab = init_optab (ASHIFTRT);
 lshl_optab = init_optab (LSHIFT);
 lshr_optab = init_optab (LSHIFTRT);
 rotl_optab = init_optab (ROTATE);
 rotr_optab = init_optab (ROTATERT);
 mov_optab = init_optab (UNKNOWN);
 movstrict_optab = init_optab (UNKNOWN);
 cmp_optab = init_optab (UNKNOWN);
 ucmp_optab = init_optab (UNKNOWN);
 tst_optab = init_optab (UNKNOWN);
 neg_optab = init_optab (NEG);
 abs_optab = init_optab (ABS);
 one_cmpl_optab = init_optab (NOT);
 ffs_optab = init_optab (FFS);

#ifdef HAVE_addqi3
 if (HAVE_addqi3)
   add_optab->handlers[(int) QImode].insn_code = CODE_FOR_addqi3;
#endif
#ifdef HAVE_addhi3
 if (HAVE_addhi3)
   add_optab->handlers[(int) HImode].insn_code = CODE_FOR_addhi3;
#endif
#ifdef HAVE_addsi3
 if (HAVE_addsi3)
   add_optab->handlers[(int) SImode].insn_code = CODE_FOR_addsi3;
#endif
#ifdef HAVE_adddi3
 if (HAVE_adddi3)
   add_optab->handlers[(int) DImode].insn_code = CODE_FOR_adddi3;
#endif
#ifdef HAVE_addsf3
 if (HAVE_addsf3)
   add_optab->handlers[(int) SFmode].insn_code = CODE_FOR_addsf3;
#endif
#ifdef HAVE_adddf3
 if (HAVE_adddf3)
   add_optab->handlers[(int) DFmode].insn_code = CODE_FOR_adddf3;
#endif
 add_optab->handlers[(int) DImode].lib_call = "__adddi3";
 add_optab->handlers[(int) SFmode].lib_call = "__addsf3";
 add_optab->handlers[(int) DFmode].lib_call = "__adddf3";

#ifdef HAVE_subqi3
 if (HAVE_subqi3)
   sub_optab->handlers[(int) QImode].insn_code = CODE_FOR_subqi3;
#endif
#ifdef HAVE_subhi3
 if (HAVE_subhi3)
   sub_optab->handlers[(int) HImode].insn_code = CODE_FOR_subhi3;
#endif
#ifdef HAVE_subsi3
 if (HAVE_subsi3)
   sub_optab->handlers[(int) SImode].insn_code = CODE_FOR_subsi3;
#endif
#ifdef HAVE_subdi3
 if (HAVE_subdi3)
   sub_optab->handlers[(int) DImode].insn_code = CODE_FOR_subdi3;
#endif
#ifdef HAVE_subsf3
 if (HAVE_subsf3)
   sub_optab->handlers[(int) SFmode].insn_code = CODE_FOR_subsf3;
#endif
#ifdef HAVE_subdf3
 if (HAVE_subdf3)
   sub_optab->handlers[(int) DFmode].insn_code = CODE_FOR_subdf3;
#endif
 sub_optab->handlers[(int) DImode].lib_call = "__subdi3";
 sub_optab->handlers[(int) SFmode].lib_call = "__subsf3";
 sub_optab->handlers[(int) DFmode].lib_call = "__subdf3";

#ifdef HAVE_mulqi3
 if (HAVE_mulqi3)
   smul_optab->handlers[(int) QImode].insn_code = CODE_FOR_mulqi3;
#endif
#ifdef HAVE_mulhi3
 if (HAVE_mulhi3)
   smul_optab->handlers[(int) HImode].insn_code = CODE_FOR_mulhi3;
#endif
#ifdef HAVE_mulsi3
 if (HAVE_mulsi3)
   smul_optab->handlers[(int) SImode].insn_code = CODE_FOR_mulsi3;
#endif
#ifdef HAVE_muldi3
 if (HAVE_muldi3)
   smul_optab->handlers[(int) DImode].insn_code = CODE_FOR_muldi3;
#endif
#ifdef HAVE_mulsf3
 if (HAVE_mulsf3)
   smul_optab->handlers[(int) SFmode].insn_code = CODE_FOR_mulsf3;
#endif
#ifdef HAVE_muldf3
 if (HAVE_muldf3)
   smul_optab->handlers[(int) DFmode].insn_code = CODE_FOR_muldf3;
#endif

#ifdef MULSI3_LIBCALL
 smul_optab->handlers[(int) SImode].lib_call = MULSI3_LIBCALL;
#else
 smul_optab->handlers[(int) SImode].lib_call = "__mulsi3";
#endif
 smul_optab->handlers[(int) DImode].lib_call = "__muldi3";
 smul_optab->handlers[(int) SFmode].lib_call = "__mulsf3";
 smul_optab->handlers[(int) DFmode].lib_call = "__muldf3";

#ifdef HAVE_mulqihi3
 if (HAVE_mulqihi3)
   smul_widen_optab->handlers[(int) HImode].insn_code = CODE_FOR_mulqihi3;
#endif
#ifdef HAVE_mulhisi3
 if (HAVE_mulhisi3)
   smul_widen_optab->handlers[(int) SImode].insn_code = CODE_FOR_mulhisi3;
#endif
#ifdef HAVE_mulsidi3
 if (HAVE_mulsidi3)
   smul_widen_optab->handlers[(int) DImode].insn_code = CODE_FOR_mulsidi3;
#endif

#ifdef HAVE_umulqi3
 if (HAVE_umulqi3)
   umul_optab->handlers[(int) QImode].insn_code = CODE_FOR_umulqi3;
#endif
#ifdef HAVE_umulhi3
 if (HAVE_umulhi3)
   umul_optab->handlers[(int) HImode].insn_code = CODE_FOR_umulhi3;
#endif
#ifdef HAVE_umulsi3
 if (HAVE_umulsi3)
   umul_optab->handlers[(int) SImode].insn_code = CODE_FOR_umulsi3;
#endif
#ifdef HAVE_umuldi3
 if (HAVE_umuldi3)
   umul_optab->handlers[(int) DImode].insn_code = CODE_FOR_umuldi3;
#endif
#ifdef HAVE_umulsf3
 if (HAVE_umulsf3)
   umul_optab->handlers[(int) SFmode].insn_code = CODE_FOR_umulsf3;
#endif
#ifdef HAVE_umuldf3
 if (HAVE_umuldf3)
   umul_optab->handlers[(int) DFmode].insn_code = CODE_FOR_umuldf3;
#endif

#ifdef UMULSI3_LIBCALL
 umul_optab->handlers[(int) SImode].lib_call = UMULSI3_LIBCALL;
#else
 umul_optab->handlers[(int) SImode].lib_call = "__umulsi3";
#endif
 umul_optab->handlers[(int) DImode].lib_call = "__umuldi3";
 umul_optab->handlers[(int) SFmode].lib_call = "__umulsf3";
 umul_optab->handlers[(int) DFmode].lib_call = "__umuldf3";

#ifdef HAVE_umulqihi3
 if (HAVE_umulqihi3)
   umul_widen_optab->handlers[(int) HImode].insn_code = CODE_FOR_umulqihi3;
#endif
#ifdef HAVE_umulhisi3
 if (HAVE_umulhisi3)
   umul_widen_optab->handlers[(int) SImode].insn_code = CODE_FOR_umulhisi3;
#endif
#ifdef HAVE_umulsidi3
 if (HAVE_umulsidi3)
   umul_widen_optab->handlers[(int) DImode].insn_code = CODE_FOR_umulsidi3;
#endif

#ifdef HAVE_divqi3
 if (HAVE_divqi3)
   sdiv_optab->handlers[(int) QImode].insn_code = CODE_FOR_divqi3;
#endif
#ifdef HAVE_divhi3
 if (HAVE_divhi3)
   sdiv_optab->handlers[(int) HImode].insn_code = CODE_FOR_divhi3;
#endif
#ifdef HAVE_divsi3
 if (HAVE_divsi3)
   sdiv_optab->handlers[(int) SImode].insn_code = CODE_FOR_divsi3;
#endif
#ifdef HAVE_divdi3
 if (HAVE_divdi3)
   sdiv_optab->handlers[(int) DImode].insn_code = CODE_FOR_divdi3;
#endif

#ifdef DIVSI3_LIBCALL
 sdiv_optab->handlers[(int) SImode].lib_call = DIVSI3_LIBCALL;
#else
 sdiv_optab->handlers[(int) SImode].lib_call = "__divsi3";
#endif
 sdiv_optab->handlers[(int) DImode].lib_call = "__divdi3";

#ifdef HAVE_udivqi3
 if (HAVE_udivqi3)
   udiv_optab->handlers[(int) QImode].insn_code = CODE_FOR_udivqi3;
#endif
#ifdef HAVE_udivhi3
 if (HAVE_udivhi3)
   udiv_optab->handlers[(int) HImode].insn_code = CODE_FOR_udivhi3;
#endif
#ifdef HAVE_udivsi3
 if (HAVE_udivsi3)
   udiv_optab->handlers[(int) SImode].insn_code = CODE_FOR_udivsi3;
#endif
#ifdef HAVE_udivdi3
 if (HAVE_udivdi3)
   udiv_optab->handlers[(int) DImode].insn_code = CODE_FOR_udivdi3;
#endif

#ifdef UDIVSI3_LIBCALL
 udiv_optab->handlers[(int) SImode].lib_call = UDIVSI3_LIBCALL;
#else
 udiv_optab->handlers[(int) SImode].lib_call = "__udivsi3";
#endif
 udiv_optab->handlers[(int) DImode].lib_call = "__udivdi3";

#ifdef HAVE_divmodqi4
 if (HAVE_divmodqi4)
   sdivmod_optab->handlers[(int) QImode].insn_code = CODE_FOR_divmodqi4;
#endif
#ifdef HAVE_divmodhi4
 if (HAVE_divmodhi4)
   sdivmod_optab->handlers[(int) HImode].insn_code = CODE_FOR_divmodhi4;
#endif
#ifdef HAVE_divmodsi4
 if (HAVE_divmodsi4)
   sdivmod_optab->handlers[(int) SImode].insn_code = CODE_FOR_divmodsi4;
#endif
#ifdef HAVE_divmoddi4
 if (HAVE_divmoddi4)
   sdivmod_optab->handlers[(int) DImode].insn_code = CODE_FOR_divmoddi4;
#endif

#ifdef HAVE_udivmodqi4
 if (HAVE_udivmodqi4)
   udivmod_optab->handlers[(int) QImode].insn_code = CODE_FOR_udivmodqi4;
#endif
#ifdef HAVE_udivmodhi4
 if (HAVE_udivmodhi4)
   udivmod_optab->handlers[(int) HImode].insn_code = CODE_FOR_udivmodhi4;
#endif
#ifdef HAVE_udivmodsi4
 if (HAVE_udivmodsi4)
   udivmod_optab->handlers[(int) SImode].insn_code = CODE_FOR_udivmodsi4;
#endif
#ifdef HAVE_udivmoddi4
 if (HAVE_udivmoddi4)
   udivmod_optab->handlers[(int) DImode].insn_code = CODE_FOR_udivmoddi4;
#endif

#ifdef HAVE_modqi3
 if (HAVE_modqi3)
   smod_optab->handlers[(int) QImode].insn_code = CODE_FOR_modqi3;
#endif
#ifdef HAVE_modhi3
 if (HAVE_modhi3)
   smod_optab->handlers[(int) HImode].insn_code = CODE_FOR_modhi3;
#endif
#ifdef HAVE_modsi3
 if (HAVE_modsi3)
   smod_optab->handlers[(int) SImode].insn_code = CODE_FOR_modsi3;
#endif
#ifdef HAVE_moddi3
 if (HAVE_moddi3)
   smod_optab->handlers[(int) DImode].insn_code = CODE_FOR_moddi3;
#endif

#ifdef MODSI3_LIBCALL
 smod_optab->handlers[(int) SImode].lib_call = MODSI3_LIBCALL;
#else
 smod_optab->handlers[(int) SImode].lib_call = "__modsi3";
#endif
 smod_optab->handlers[(int) DImode].lib_call = "__moddi3";

#ifdef HAVE_umodqi3
 if (HAVE_umodqi3)
   umod_optab->handlers[(int) QImode].insn_code = CODE_FOR_umodqi3;
#endif
#ifdef HAVE_umodhi3
 if (HAVE_umodhi3)
   umod_optab->handlers[(int) HImode].insn_code = CODE_FOR_umodhi3;
#endif
#ifdef HAVE_umodsi3
 if (HAVE_umodsi3)
   umod_optab->handlers[(int) SImode].insn_code = CODE_FOR_umodsi3;
#endif
#ifdef HAVE_umoddi3
 if (HAVE_umoddi3)
   umod_optab->handlers[(int) DImode].insn_code = CODE_FOR_umoddi3;
#endif

#ifdef UMODSI3_LIBCALL
 umod_optab->handlers[(int) SImode].lib_call = UMODSI3_LIBCALL;
#else
 umod_optab->handlers[(int) SImode].lib_call = "__umodsi3";
#endif
 umod_optab->handlers[(int) DImode].lib_call = "__umoddi3";

#ifdef HAVE_divsf3
 if (HAVE_divsf3)
   flodiv_optab->handlers[(int) SFmode].insn_code = CODE_FOR_divsf3;
#endif
#ifdef HAVE_divdf3
 if (HAVE_divdf3)
   flodiv_optab->handlers[(int) DFmode].insn_code = CODE_FOR_divdf3;
#endif
 flodiv_optab->handlers[(int) SFmode].lib_call = "__divsf3";
 flodiv_optab->handlers[(int) DFmode].lib_call = "__divdf3";

#ifdef HAVE_ftruncsf2
 if (HAVE_ftruncsf2)
   ftrunc_optab->handlers[(int) SFmode].insn_code = CODE_FOR_ftruncsf2;
#endif
#ifdef HAVE_ftruncdf2
 if (HAVE_ftruncdf2)
   ftrunc_optab->handlers[(int) DFmode].insn_code = CODE_FOR_ftruncdf2;
#endif

#ifdef HAVE_andqi3
 if (HAVE_andqi3)
   and_optab->handlers[(int) QImode].insn_code = CODE_FOR_andqi3;
#endif
#ifdef HAVE_andhi3
 if (HAVE_andhi3)
   and_optab->handlers[(int) HImode].insn_code = CODE_FOR_andhi3;
#endif
#ifdef HAVE_andsi3
 if (HAVE_andsi3)
   and_optab->handlers[(int) SImode].insn_code = CODE_FOR_andsi3;
#endif
#ifdef HAVE_anddi3
 if (HAVE_anddi3)
   and_optab->handlers[(int) DImode].insn_code = CODE_FOR_anddi3;
#endif
 and_optab->handlers[(int) DImode].lib_call = "__anddi3";

#ifdef HAVE_andcbqi3
 if (HAVE_andcbqi3)
   andcb_optab->handlers[(int) QImode].insn_code = CODE_FOR_andcbqi3;
#endif
#ifdef HAVE_andcbhi3
 if (HAVE_andcbhi3)
   andcb_optab->handlers[(int) HImode].insn_code = CODE_FOR_andcbhi3;
#endif
#ifdef HAVE_andcbsi3
 if (HAVE_andcbsi3)
   andcb_optab->handlers[(int) SImode].insn_code = CODE_FOR_andcbsi3;
#endif
#ifdef HAVE_andcbdi3
 if (HAVE_andcbdi3)
   andcb_optab->handlers[(int) DImode].insn_code = CODE_FOR_andcbdi3;
#endif
 andcb_optab->handlers[(int) DImode].lib_call = "__andcbdi3";

#ifdef HAVE_iorqi3
 if (HAVE_iorqi3)
   ior_optab->handlers[(int) QImode].insn_code = CODE_FOR_iorqi3;
#endif
#ifdef HAVE_iorhi3
 if (HAVE_iorhi3)
   ior_optab->handlers[(int) HImode].insn_code = CODE_FOR_iorhi3;
#endif
#ifdef HAVE_iorsi3
 if (HAVE_iorsi3)
   ior_optab->handlers[(int) SImode].insn_code = CODE_FOR_iorsi3;
#endif
#ifdef HAVE_iordi3
 if (HAVE_iordi3)
   ior_optab->handlers[(int) DImode].insn_code = CODE_FOR_iordi3;
#endif
 ior_optab->handlers[(int) DImode].lib_call = "__iordi3";

#ifdef HAVE_xorqi3
 if (HAVE_xorqi3)
   xor_optab->handlers[(int) QImode].insn_code = CODE_FOR_xorqi3;
#endif
#ifdef HAVE_xorhi3
 if (HAVE_xorhi3)
   xor_optab->handlers[(int) HImode].insn_code = CODE_FOR_xorhi3;
#endif
#ifdef HAVE_xorsi3
 if (HAVE_xorsi3)
   xor_optab->handlers[(int) SImode].insn_code = CODE_FOR_xorsi3;
#endif
#ifdef HAVE_xordi3
 if (HAVE_xordi3)
   xor_optab->handlers[(int) DImode].insn_code = CODE_FOR_xordi3;
#endif
 xor_optab->handlers[(int) DImode].lib_call = "__xordi3";

#ifdef HAVE_ashlqi3
 if (HAVE_ashlqi3)
   ashl_optab->handlers[(int) QImode].insn_code = CODE_FOR_ashlqi3;
#endif
#ifdef HAVE_ashlhi3
 if (HAVE_ashlhi3)
   ashl_optab->handlers[(int) HImode].insn_code = CODE_FOR_ashlhi3;
#endif
#ifdef HAVE_ashlsi3
 if (HAVE_ashlsi3)
   ashl_optab->handlers[(int) SImode].insn_code = CODE_FOR_ashlsi3;
#endif
#ifdef HAVE_ashldi3
 if (HAVE_ashldi3)
   ashl_optab->handlers[(int) DImode].insn_code = CODE_FOR_ashldi3;
#endif
 ashl_optab->handlers[(int) SImode].lib_call = "__ashlsi3";
 ashl_optab->handlers[(int) DImode].lib_call = "__ashldi3";

#ifdef HAVE_ashrqi3
 if (HAVE_ashrqi3)
   ashr_optab->handlers[(int) QImode].insn_code = CODE_FOR_ashrqi3;
#endif
#ifdef HAVE_ashrhi3
 if (HAVE_ashrhi3)
   ashr_optab->handlers[(int) HImode].insn_code = CODE_FOR_ashrhi3;
#endif
#ifdef HAVE_ashrsi3
 if (HAVE_ashrsi3)
   ashr_optab->handlers[(int) SImode].insn_code = CODE_FOR_ashrsi3;
#endif
#ifdef HAVE_ashrdi3
 if (HAVE_ashrdi3)
   ashr_optab->handlers[(int) DImode].insn_code = CODE_FOR_ashrdi3;
#endif
 ashr_optab->handlers[(int) SImode].lib_call = "__ashrsi3";
 ashr_optab->handlers[(int) DImode].lib_call = "__ashrdi3";

#ifdef HAVE_lshlqi3
 if (HAVE_lshlqi3)
   lshl_optab->handlers[(int) QImode].insn_code = CODE_FOR_lshlqi3;
#endif
#ifdef HAVE_lshlhi3
 if (HAVE_lshlhi3)
   lshl_optab->handlers[(int) HImode].insn_code = CODE_FOR_lshlhi3;
#endif
#ifdef HAVE_lshlsi3
 if (HAVE_lshlsi3)
   lshl_optab->handlers[(int) SImode].insn_code = CODE_FOR_lshlsi3;
#endif
#ifdef HAVE_lshldi3
 if (HAVE_lshldi3)
   lshl_optab->handlers[(int) DImode].insn_code = CODE_FOR_lshldi3;
#endif
 lshl_optab->handlers[(int) SImode].lib_call = "__lshlsi3";
 lshl_optab->handlers[(int) DImode].lib_call = "__lshldi3";

#ifdef HAVE_lshrqi3
 if (HAVE_lshrqi3)
   lshr_optab->handlers[(int) QImode].insn_code = CODE_FOR_lshrqi3;
#endif
#ifdef HAVE_lshrhi3
 if (HAVE_lshrhi3)
   lshr_optab->handlers[(int) HImode].insn_code = CODE_FOR_lshrhi3;
#endif
#ifdef HAVE_lshrsi3
 if (HAVE_lshrsi3)
   lshr_optab->handlers[(int) SImode].insn_code = CODE_FOR_lshrsi3;
#endif
#ifdef HAVE_lshrdi3
 if (HAVE_lshrdi3)
   lshr_optab->handlers[(int) DImode].insn_code = CODE_FOR_lshrdi3;
#endif
 lshr_optab->handlers[(int) SImode].lib_call = "__lshrsi3";
 lshr_optab->handlers[(int) DImode].lib_call = "__lshrdi3";

#ifdef HAVE_rotlqi3
 if (HAVE_rotlqi3)
   rotl_optab->handlers[(int) QImode].insn_code = CODE_FOR_rotlqi3;
#endif
#ifdef HAVE_rotlhi3
 if (HAVE_rotlhi3)
   rotl_optab->handlers[(int) HImode].insn_code = CODE_FOR_rotlhi3;
#endif
#ifdef HAVE_rotlsi3
 if (HAVE_rotlsi3)
   rotl_optab->handlers[(int) SImode].insn_code = CODE_FOR_rotlsi3;
#endif
#ifdef HAVE_rotldi3
 if (HAVE_rotldi3)
   rotl_optab->handlers[(int) DImode].insn_code = CODE_FOR_rotldi3;
#endif
 rotl_optab->handlers[(int) SImode].lib_call = "__rotlsi3";
 rotl_optab->handlers[(int) DImode].lib_call = "__rotldi3";

#ifdef HAVE_rotrqi3
 if (HAVE_rotrqi3)
   rotr_optab->handlers[(int) QImode].insn_code = CODE_FOR_rotrqi3;
#endif
#ifdef HAVE_rotrhi3
 if (HAVE_rotrhi3)
   rotr_optab->handlers[(int) HImode].insn_code = CODE_FOR_rotrhi3;
#endif
#ifdef HAVE_rotrsi3
 if (HAVE_rotrsi3)
   rotr_optab->handlers[(int) SImode].insn_code = CODE_FOR_rotrsi3;
#endif
#ifdef HAVE_rotrdi3
 if (HAVE_rotrdi3)
   rotr_optab->handlers[(int) DImode].insn_code = CODE_FOR_rotrdi3;
#endif
 rotr_optab->handlers[(int) SImode].lib_call = "__rotrsi3";
 rotr_optab->handlers[(int) DImode].lib_call = "__rotrdi3";

#ifdef HAVE_negqi2
 if (HAVE_negqi2)
   neg_optab->handlers[(int) QImode].insn_code = CODE_FOR_negqi2;
#endif
#ifdef HAVE_neghi2
 if (HAVE_neghi2)
   neg_optab->handlers[(int) HImode].insn_code = CODE_FOR_neghi2;
#endif
#ifdef HAVE_negsi2
 if (HAVE_negsi2)
   neg_optab->handlers[(int) SImode].insn_code = CODE_FOR_negsi2;
#endif
#ifdef HAVE_negdi2
 if (HAVE_negdi2)
   neg_optab->handlers[(int) DImode].insn_code = CODE_FOR_negdi2;
#endif
#ifdef HAVE_negsf2
 if (HAVE_negsf2)
   neg_optab->handlers[(int) SFmode].insn_code = CODE_FOR_negsf2;
#endif
#ifdef HAVE_negdf2
 if (HAVE_negdf2)
   neg_optab->handlers[(int) DFmode].insn_code = CODE_FOR_negdf2;
#endif
 neg_optab->handlers[(int) SImode].lib_call = "__negsi2"; 
 neg_optab->handlers[(int) DImode].lib_call = "__negdi2";
 neg_optab->handlers[(int) SFmode].lib_call = "__negsf2";
 neg_optab->handlers[(int) DFmode].lib_call = "__negdf2";

#ifdef HAVE_absqi2
 if (HAVE_absqi2)
   abs_optab->handlers[(int) QImode].insn_code = CODE_FOR_absqi2;
#endif
#ifdef HAVE_abshi2
 if (HAVE_abshi2)
   abs_optab->handlers[(int) HImode].insn_code = CODE_FOR_abshi2;
#endif
#ifdef HAVE_abssi2
 if (HAVE_abssi2)
   abs_optab->handlers[(int) SImode].insn_code = CODE_FOR_abssi2;
#endif
#ifdef HAVE_absdi2
 if (HAVE_absdi2)
   abs_optab->handlers[(int) DImode].insn_code = CODE_FOR_absdi2;
#endif
#ifdef HAVE_abssf2
 if (HAVE_abssf2)
   abs_optab->handlers[(int) SFmode].insn_code = CODE_FOR_abssf2;
#endif
#ifdef HAVE_absdf2
 if (HAVE_absdf2)
   abs_optab->handlers[(int) DFmode].insn_code = CODE_FOR_absdf2;
#endif
 /* No library calls here!  If there is no abs instruction,
    expand_expr will generate a conditional negation.  */

#ifdef HAVE_one_cmplqi2
 if (HAVE_one_cmplqi2)
   one_cmpl_optab->handlers[(int) QImode].insn_code = CODE_FOR_one_cmplqi2;
#endif
#ifdef HAVE_one_cmplhi2
 if (HAVE_one_cmplhi2)
   one_cmpl_optab->handlers[(int) HImode].insn_code = CODE_FOR_one_cmplhi2;
#endif
#ifdef HAVE_one_cmplsi2
 if (HAVE_one_cmplsi2)
   one_cmpl_optab->handlers[(int) SImode].insn_code = CODE_FOR_one_cmplsi2;
#endif
#ifdef HAVE_one_cmpldi2
 if (HAVE_one_cmpldi2)
   one_cmpl_optab->handlers[(int) DImode].insn_code = CODE_FOR_one_cmpldi2;
#endif
 one_cmpl_optab->handlers[(int) SImode].lib_call = "__one_cmplsi2"; 
 one_cmpl_optab->handlers[(int) DImode].lib_call = "__one_cmpldi2";

#ifdef HAVE_ffsqi2
 if (HAVE_ffsqi2)
   ffs_optab->handlers[(int) QImode].insn_code = CODE_FOR_ffsqi2;
#endif
#ifdef HAVE_ffshi2
 if (HAVE_ffshi2)
   ffs_optab->handlers[(int) HImode].insn_code = CODE_FOR_ffshi2;
#endif
#ifdef HAVE_ffssi2
 if (HAVE_ffssi2)
   ffs_optab->handlers[(int) SImode].insn_code = CODE_FOR_ffssi2;
#endif
#ifdef HAVE_ffsdi2
 if (HAVE_ffsdi2)
   ffs_optab->handlers[(int) DImode].insn_code = CODE_FOR_ffsdi2;
#endif
 ffs_optab->handlers[(int) SImode].lib_call = "ffs"; 

#ifdef HAVE_movqi
 if (HAVE_movqi)
   mov_optab->handlers[(int) QImode].insn_code = CODE_FOR_movqi;
#endif
#ifdef HAVE_movhi
 if (HAVE_movhi)
   mov_optab->handlers[(int) HImode].insn_code = CODE_FOR_movhi;
#endif
#ifdef HAVE_movsi
 if (HAVE_movsi)
   mov_optab->handlers[(int) SImode].insn_code = CODE_FOR_movsi;
#endif
#ifdef HAVE_movdi
 if (HAVE_movdi)
   mov_optab->handlers[(int) DImode].insn_code = CODE_FOR_movdi;
#endif
#ifdef HAVE_movti
 if (HAVE_movti)
   mov_optab->handlers[(int) TImode].insn_code = CODE_FOR_movti;
#endif
#ifdef HAVE_movsf
 if (HAVE_movsf)
   mov_optab->handlers[(int) SFmode].insn_code = CODE_FOR_movsf;
#endif
#ifdef HAVE_movdf
 if (HAVE_movdf)
   mov_optab->handlers[(int) DFmode].insn_code = CODE_FOR_movdf;
#endif
#ifdef HAVE_movtf
 if (HAVE_movtf)
   mov_optab->handlers[(int) TFmode].insn_code = CODE_FOR_movtf;
#endif

#ifdef HAVE_movstrictqi
 if (HAVE_movstrictqi)
   movstrict_optab->handlers[(int) QImode].insn_code = CODE_FOR_movstrictqi;
#endif
#ifdef HAVE_movstricthi
 if (HAVE_movstricthi)
   movstrict_optab->handlers[(int) HImode].insn_code = CODE_FOR_movstricthi;
#endif
#ifdef HAVE_movstrictsi
 if (HAVE_movstrictsi)
   movstrict_optab->handlers[(int) SImode].insn_code = CODE_FOR_movstrictsi;
#endif
#ifdef HAVE_movstrictdi
 if (HAVE_movstrictdi)
   movstrict_optab->handlers[(int) DImode].insn_code = CODE_FOR_movstrictdi;
#endif

#ifdef HAVE_cmpqi
 if (HAVE_cmpqi)
   cmp_optab->handlers[(int) QImode].insn_code = CODE_FOR_cmpqi;
#endif
#ifdef HAVE_cmphi
 if (HAVE_cmphi)
   cmp_optab->handlers[(int) HImode].insn_code = CODE_FOR_cmphi;
#endif
#ifdef HAVE_cmpsi
 if (HAVE_cmpsi)
   cmp_optab->handlers[(int) SImode].insn_code = CODE_FOR_cmpsi;
#endif
#ifdef HAVE_cmpdi
 if (HAVE_cmpdi)
   cmp_optab->handlers[(int) DImode].insn_code = CODE_FOR_cmpdi;
#endif
#ifdef HAVE_cmpsf
 if (HAVE_cmpsf)
   cmp_optab->handlers[(int) SFmode].insn_code = CODE_FOR_cmpsf;
#endif
#ifdef HAVE_cmpdf
 if (HAVE_cmpdf)
   cmp_optab->handlers[(int) DFmode].insn_code = CODE_FOR_cmpdf;
#endif
#ifdef HAVE_tstqi
 if (HAVE_tstqi)
   tst_optab->handlers[(int) QImode].insn_code = CODE_FOR_tstqi;
#endif
#ifdef HAVE_tsthi
 if (HAVE_tsthi)
   tst_optab->handlers[(int) HImode].insn_code = CODE_FOR_tsthi;
#endif
#ifdef HAVE_tstsi
 if (HAVE_tstsi)
   tst_optab->handlers[(int) SImode].insn_code = CODE_FOR_tstsi;
#endif
#ifdef HAVE_tstdi
 if (HAVE_tstdi)
   tst_optab->handlers[(int) DImode].insn_code = CODE_FOR_tstdi;
#endif
#ifdef HAVE_tstsf
 if (HAVE_tstsf)
   tst_optab->handlers[(int) SFmode].insn_code = CODE_FOR_tstsf;
#endif
#ifdef HAVE_tstdf
 if (HAVE_tstdf)
   tst_optab->handlers[(int) DFmode].insn_code = CODE_FOR_tstdf;
#endif
 /* Comparison libcalls for integers MUST come in pairs, signed/unsigned.  */
 cmp_optab->handlers[(int) DImode].lib_call = "__cmpdi2";
 ucmp_optab->handlers[(int) DImode].lib_call = "__ucmpdi2";
 cmp_optab->handlers[(int) SFmode].lib_call = "__cmpsf2";
 cmp_optab->handlers[(int) DFmode].lib_call = "__cmpdf2";

#if HAVE_beq
 if (HAVE_beq)
   bcc_gen_fctn[(int) EQ] = gen_beq;
#endif
#if HAVE_bne
 if (HAVE_bne)
   bcc_gen_fctn[(int) NE] = gen_bne;
#endif
#if HAVE_bgt
 if (HAVE_bgt)
   bcc_gen_fctn[(int) GT] = gen_bgt;
#endif
#if HAVE_bge
 if (HAVE_bge)
   bcc_gen_fctn[(int) GE] = gen_bge;
#endif
#if HAVE_bgtu
 if (HAVE_bgtu)
   bcc_gen_fctn[(int) GTU] = gen_bgtu;
#endif
#if HAVE_bgeu
 if (HAVE_bgeu)
   bcc_gen_fctn[(int) GEU] = gen_bgeu;
#endif
#if HAVE_blt
 if (HAVE_blt)
   bcc_gen_fctn[(int) LT] = gen_blt;
#endif
#if HAVE_ble
 if (HAVE_ble)
   bcc_gen_fctn[(int) LE] = gen_ble;
#endif
#if HAVE_bltu
 if (HAVE_bltu)
   bcc_gen_fctn[(int) LTU] = gen_bltu;
#endif
#if HAVE_bleu
 if (HAVE_bleu)
   bcc_gen_fctn[(int) LEU] = gen_bleu;
#endif

#if HAVE_seq
 if (HAVE_seq)
   setcc_gen_fctn[(int) EQ] = gen_seq;
#endif
#if HAVE_sne
 if (HAVE_sne)
   setcc_gen_fctn[(int) NE] = gen_sne;
#endif
#if HAVE_sgt
 if (HAVE_sgt)
   setcc_gen_fctn[(int) GT] = gen_sgt;
#endif
#if HAVE_sge
 if (HAVE_sge)
   setcc_gen_fctn[(int) GE] = gen_sge;
#endif
#if HAVE_sgtu
 if (HAVE_sgtu)
   setcc_gen_fctn[(int) GTU] = gen_sgtu;
#endif
#if HAVE_sgeu
 if (HAVE_sgeu)
   setcc_gen_fctn[(int) GEU] = gen_sgeu;
#endif
#if HAVE_slt
 if (HAVE_slt)
   setcc_gen_fctn[(int) LT] = gen_slt;
#endif
#if HAVE_sle
 if (HAVE_sle)
   setcc_gen_fctn[(int) LE] = gen_sle;
#endif
#if HAVE_sltu
 if (HAVE_sltu)
   setcc_gen_fctn[(int) LTU] = gen_sltu;
#endif
#if HAVE_sleu
 if (HAVE_sleu)
   setcc_gen_fctn[(int) LEU] = gen_sleu;
#endif
}