/* Expand the basic unary and binary arithmetic operations, for GNU compiler.
Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000 Free Software Foundation, Inc.
+ 1999, 2000, 2001 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-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 2, or (at your option)
-any later version.
+GCC 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 2, 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.
+GCC 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. */
+along with GCC; 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 "toplev.h"
/* Include insn-config.h before expr.h so that HAVE_conditional_move
- is properly defined. */
+ is properly defined. */
#include "insn-config.h"
#include "rtl.h"
#include "tree.h"
#include "tm_p.h"
#include "flags.h"
-#include "insn-flags.h"
-#include "insn-codes.h"
#include "function.h"
+#include "except.h"
#include "expr.h"
+#include "optabs.h"
+#include "libfuncs.h"
#include "recog.h"
#include "reload.h"
#include "ggc.h"
rtx, rtx, enum machine_mode,
int, enum optab_methods,
enum mode_class, optab));
+static void prepare_cmp_insn PARAMS ((rtx *, rtx *, enum rtx_code *, rtx,
+ enum machine_mode *, int *,
+ enum can_compare_purpose));
static enum insn_code can_fix_p PARAMS ((enum machine_mode, enum machine_mode,
int, int *));
-static enum insn_code can_float_p PARAMS ((enum machine_mode, enum machine_mode,
- int));
+static enum insn_code can_float_p PARAMS ((enum machine_mode,
+ enum machine_mode,
+ int));
static rtx ftruncify PARAMS ((rtx));
-static optab init_optab PARAMS ((enum rtx_code));
+static optab new_optab PARAMS ((void));
+static inline optab init_optab PARAMS ((enum rtx_code));
+static inline optab init_optabv PARAMS ((enum rtx_code));
static void init_libfuncs PARAMS ((optab, int, int, const char *, int));
static void init_integral_libfuncs PARAMS ((optab, const char *, int));
static void init_floating_libfuncs PARAMS ((optab, const char *, int));
rtx real_t, imag_t;
rtx temp1, temp2;
rtx res;
+ optab this_add_optab = add_optab;
+ optab this_sub_optab = sub_optab;
+ optab this_neg_optab = neg_optab;
+ optab this_mul_optab = smul_optab;
+ if (binoptab == sdivv_optab)
+ {
+ this_add_optab = addv_optab;
+ this_sub_optab = subv_optab;
+ this_neg_optab = negv_optab;
+ this_mul_optab = smulv_optab;
+ }
+
/* Don't fetch these from memory more than once. */
real0 = force_reg (submode, real0);
real1 = force_reg (submode, real1);
imag1 = force_reg (submode, imag1);
/* Divisor: c*c + d*d. */
- temp1 = expand_binop (submode, smul_optab, real1, real1,
+ temp1 = expand_binop (submode, this_mul_optab, real1, real1,
NULL_RTX, unsignedp, methods);
- temp2 = expand_binop (submode, smul_optab, imag1, imag1,
+ temp2 = expand_binop (submode, this_mul_optab, imag1, imag1,
NULL_RTX, unsignedp, methods);
if (temp1 == 0 || temp2 == 0)
return 0;
- divisor = expand_binop (submode, add_optab, temp1, temp2,
+ divisor = expand_binop (submode, this_add_optab, temp1, temp2,
NULL_RTX, unsignedp, methods);
if (divisor == 0)
return 0;
/* Computationally, (a+i0) / (c+id) = (ac/(cc+dd)) + i(-ad/(cc+dd)). */
/* Calculate the dividend. */
- real_t = expand_binop (submode, smul_optab, real0, real1,
+ real_t = expand_binop (submode, this_mul_optab, real0, real1,
NULL_RTX, unsignedp, methods);
- imag_t = expand_binop (submode, smul_optab, real0, imag1,
+ imag_t = expand_binop (submode, this_mul_optab, real0, imag1,
NULL_RTX, unsignedp, methods);
if (real_t == 0 || imag_t == 0)
return 0;
- imag_t = expand_unop (submode, neg_optab, imag_t,
+ imag_t = expand_unop (submode, this_neg_optab, imag_t,
NULL_RTX, unsignedp);
}
else
{
/* Mathematically, ((a+ib)(c-id))/divider. */
/* Calculate the dividend. */
- temp1 = expand_binop (submode, smul_optab, real0, real1,
+ temp1 = expand_binop (submode, this_mul_optab, real0, real1,
NULL_RTX, unsignedp, methods);
- temp2 = expand_binop (submode, smul_optab, imag0, imag1,
+ temp2 = expand_binop (submode, this_mul_optab, imag0, imag1,
NULL_RTX, unsignedp, methods);
if (temp1 == 0 || temp2 == 0)
return 0;
- real_t = expand_binop (submode, add_optab, temp1, temp2,
+ real_t = expand_binop (submode, this_add_optab, temp1, temp2,
NULL_RTX, unsignedp, methods);
- temp1 = expand_binop (submode, smul_optab, imag0, real1,
+ temp1 = expand_binop (submode, this_mul_optab, imag0, real1,
NULL_RTX, unsignedp, methods);
- temp2 = expand_binop (submode, smul_optab, real0, imag1,
+ temp2 = expand_binop (submode, this_mul_optab, real0, imag1,
NULL_RTX, unsignedp, methods);
if (temp1 == 0 || temp2 == 0)
return 0;
- imag_t = expand_binop (submode, sub_optab, temp1, temp2,
+ imag_t = expand_binop (submode, this_sub_optab, temp1, temp2,
NULL_RTX, unsignedp, methods);
if (real_t == 0 || imag_t == 0)
rtx real_t, imag_t;
rtx temp1, temp2, lab1, lab2;
enum machine_mode mode;
- int align;
rtx res;
+ optab this_add_optab = add_optab;
+ optab this_sub_optab = sub_optab;
+ optab this_neg_optab = neg_optab;
+ optab this_mul_optab = smul_optab;
+
+ if (binoptab == sdivv_optab)
+ {
+ this_add_optab = addv_optab;
+ this_sub_optab = subv_optab;
+ this_neg_optab = negv_optab;
+ this_mul_optab = smulv_optab;
+ }
/* Don't fetch these from memory more than once. */
real0 = force_reg (submode, real0);
}
else
{
- temp1 = expand_abs (submode, real1, NULL_RTX, 1);
- temp2 = expand_abs (submode, imag1, NULL_RTX, 1);
+ temp1 = expand_abs (submode, real1, NULL_RTX, unsignedp, 1);
+ temp2 = expand_abs (submode, imag1, NULL_RTX, unsignedp, 1);
}
if (temp1 == 0 || temp2 == 0)
return 0;
mode = GET_MODE (temp1);
- align = GET_MODE_ALIGNMENT (mode);
lab1 = gen_label_rtx ();
emit_cmp_and_jump_insns (temp1, temp2, LT, NULL_RTX,
- mode, unsignedp, align, lab1);
+ mode, unsignedp, lab1);
/* |c| >= |d|; use ratio d/c to scale dividend and divisor. */
/* Calculate divisor. */
- temp1 = expand_binop (submode, smul_optab, imag1, ratio,
+ temp1 = expand_binop (submode, this_mul_optab, imag1, ratio,
NULL_RTX, unsignedp, methods);
if (temp1 == 0)
return 0;
- divisor = expand_binop (submode, add_optab, temp1, real1,
+ divisor = expand_binop (submode, this_add_optab, temp1, real1,
NULL_RTX, unsignedp, methods);
if (divisor == 0)
/* Compute a / (c+id) as a / (c+d(d/c)) + i (-a(d/c)) / (c+d(d/c)). */
- imag_t = expand_binop (submode, smul_optab, real0, ratio,
+ imag_t = expand_binop (submode, this_mul_optab, real0, ratio,
NULL_RTX, unsignedp, methods);
if (imag_t == 0)
return 0;
- imag_t = expand_unop (submode, neg_optab, imag_t,
+ imag_t = expand_unop (submode, this_neg_optab, imag_t,
NULL_RTX, unsignedp);
if (real_t == 0 || imag_t == 0)
/* Compute (a+ib)/(c+id) as
(a+b(d/c))/(c+d(d/c) + i(b-a(d/c))/(c+d(d/c)). */
- temp1 = expand_binop (submode, smul_optab, imag0, ratio,
+ temp1 = expand_binop (submode, this_mul_optab, imag0, ratio,
NULL_RTX, unsignedp, methods);
if (temp1 == 0)
return 0;
- real_t = expand_binop (submode, add_optab, temp1, real0,
+ real_t = expand_binop (submode, this_add_optab, temp1, real0,
NULL_RTX, unsignedp, methods);
- temp1 = expand_binop (submode, smul_optab, real0, ratio,
+ temp1 = expand_binop (submode, this_mul_optab, real0, ratio,
NULL_RTX, unsignedp, methods);
if (temp1 == 0)
return 0;
- imag_t = expand_binop (submode, sub_optab, imag0, temp1,
+ imag_t = expand_binop (submode, this_sub_optab, imag0, temp1,
NULL_RTX, unsignedp, methods);
if (real_t == 0 || imag_t == 0)
/* Calculate divisor. */
- temp1 = expand_binop (submode, smul_optab, real1, ratio,
+ temp1 = expand_binop (submode, this_mul_optab, real1, ratio,
NULL_RTX, unsignedp, methods);
if (temp1 == 0)
return 0;
- divisor = expand_binop (submode, add_optab, temp1, imag1,
+ divisor = expand_binop (submode, this_add_optab, temp1, imag1,
NULL_RTX, unsignedp, methods);
if (divisor == 0)
{
/* Compute a / (c+id) as a(c/d) / (c(c/d)+d) + i (-a) / (c(c/d)+d). */
- real_t = expand_binop (submode, smul_optab, real0, ratio,
+ real_t = expand_binop (submode, this_mul_optab, real0, ratio,
NULL_RTX, unsignedp, methods);
- imag_t = expand_unop (submode, neg_optab, real0,
+ imag_t = expand_unop (submode, this_neg_optab, real0,
NULL_RTX, unsignedp);
if (real_t == 0 || imag_t == 0)
/* Compute (a+ib)/(c+id) as
(a(c/d)+b)/(c(c/d)+d) + i (b(c/d)-a)/(c(c/d)+d). */
- temp1 = expand_binop (submode, smul_optab, real0, ratio,
+ temp1 = expand_binop (submode, this_mul_optab, real0, ratio,
NULL_RTX, unsignedp, methods);
if (temp1 == 0)
return 0;
- real_t = expand_binop (submode, add_optab, temp1, imag0,
+ real_t = expand_binop (submode, this_add_optab, temp1, imag0,
NULL_RTX, unsignedp, methods);
- temp1 = expand_binop (submode, smul_optab, imag0, ratio,
+ temp1 = expand_binop (submode, this_mul_optab, imag0, ratio,
NULL_RTX, unsignedp, methods);
if (temp1 == 0)
return 0;
- imag_t = expand_binop (submode, sub_optab, temp1, real0,
+ imag_t = expand_binop (submode, this_sub_optab, temp1, real0,
NULL_RTX, unsignedp, methods);
if (real_t == 0 || imag_t == 0)
return 1;
}
\f
+/* Wrapper around expand_binop which takes an rtx code to specify
+ the operation to perform, not an optab pointer. All other
+ arguments are the same. */
+rtx
+expand_simple_binop (mode, code, op0, op1, target, unsignedp, methods)
+ enum machine_mode mode;
+ enum rtx_code code;
+ rtx op0, op1;
+ rtx target;
+ int unsignedp;
+ enum optab_methods methods;
+{
+ optab binop = code_to_optab [(int) code];
+ if (binop == 0)
+ abort ();
+
+ return expand_binop (mode, binop, op0, op1, target, unsignedp, methods);
+}
+
/* Generate code to perform an operation specified by BINOPTAB
on operands OP0 and OP1, with result having machine-mode MODE.
? OPTAB_WIDEN : methods);
enum mode_class class;
enum machine_mode wider_mode;
- register rtx temp;
+ rtx temp;
int commutative_op = 0;
int shift_op = (binoptab->code == ASHIFT
|| binoptab->code == ASHIFTRT
/* If we are inside an appropriately-short loop and one operand is an
expensive constant, force it into a register. */
if (CONSTANT_P (op0) && preserve_subexpressions_p ()
- && rtx_cost (op0, binoptab->code) > 2)
+ && rtx_cost (op0, binoptab->code) > COSTS_N_INSNS (1))
op0 = force_reg (mode, op0);
if (CONSTANT_P (op1) && preserve_subexpressions_p ()
- && ! shift_op && rtx_cost (op1, binoptab->code) > 2)
+ && ! shift_op && rtx_cost (op1, binoptab->code) > COSTS_N_INSNS (1))
op1 = force_reg (mode, op1);
/* Record where to delete back to if we backtrack. */
if (GET_MODE (op0) != mode0 && GET_MODE (op1) != mode1
&& GET_MODE (op0) == mode1 && GET_MODE (op1) == mode0)
{
- register rtx tmp;
+ rtx tmp;
tmp = op0; op0 = op1; op1 = tmp;
tmp = xop0; xop0 = xop1; xop1 = tmp;
}
/* 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
+ the result, convert the operands. It would seem that we
+ don't need to convert CONST_INTs, but we do, so that they're
+ a properly sign-extended for their modes; we choose the
+ widest mode between mode and mode[01], so that, in a widening
+ operation, we call convert_modes with different FROM and TO
+ modes, which ensures the value is sign-extended. Shift
+ operations are an exception, because the second operand needs
+ not be extended to the mode of the result. */
+
+ if (GET_MODE (op0) != mode0
&& mode0 != VOIDmode)
- xop0 = convert_to_mode (mode0, xop0, unsignedp);
-
- if (GET_MODE (xop1) != VOIDmode
- && GET_MODE (xop1) != mode1
+ xop0 = convert_modes (mode0,
+ GET_MODE (op0) != VOIDmode
+ ? GET_MODE (op0)
+ : GET_MODE_SIZE (mode) > GET_MODE_SIZE (mode0)
+ ? mode
+ : mode0,
+ xop0, unsignedp);
+
+ if (GET_MODE (xop1) != mode1
&& mode1 != VOIDmode)
- xop1 = convert_to_mode (mode1, xop1, unsignedp);
+ xop1 = convert_modes (mode1,
+ GET_MODE (op1) != VOIDmode
+ ? GET_MODE (op1)
+ : (GET_MODE_SIZE (mode) > GET_MODE_SIZE (mode1)
+ && ! shift_op)
+ ? mode
+ : mode1,
+ xop1, unsignedp);
/* Now, if insn's predicates don't allow our operands, put them into
pseudo regs. */
/* For certain integer operations, we need not actually extend
the narrow operands, as long as we will truncate
- the results to the same narrowness. */
+ the results to the same narrowness. */
if ((binoptab == ior_optab || binoptab == and_optab
|| binoptab == xor_optab
&& GET_MODE_SIZE (mode) > UNITS_PER_WORD
&& binoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
- unsigned int i;
+ int i;
rtx insns;
rtx equiv_value;
&& GET_MODE_SIZE (mode) >= 2 * UNITS_PER_WORD
&& binoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
- unsigned int i;
- rtx carry_tmp = gen_reg_rtx (word_mode);
+ int i;
optab otheroptab = binoptab == add_optab ? sub_optab : add_optab;
unsigned int nwords = GET_MODE_BITSIZE (mode) / BITS_PER_WORD;
rtx carry_in = NULL_RTX, carry_out = NULL_RTX;
if (i > 0)
{
+ rtx newx;
+
/* Add/subtract previous carry to main result. */
- x = expand_binop (word_mode,
- normalizep == 1 ? binoptab : otheroptab,
- x, carry_in,
- target_piece, 1, next_methods);
- if (x == 0)
- break;
- else if (target_piece != x)
- emit_move_insn (target_piece, x);
+ newx = expand_binop (word_mode,
+ normalizep == 1 ? binoptab : otheroptab,
+ x, carry_in,
+ NULL_RTX, 1, next_methods);
if (i + 1 < nwords)
{
- /* THIS CODE HAS NOT BEEN TESTED. */
/* Get out carry from adding/subtracting carry in. */
+ rtx carry_tmp = gen_reg_rtx (word_mode);
carry_tmp = emit_store_flag_force (carry_tmp,
- binoptab == add_optab
- ? LT : GT,
- x, carry_in,
+ (binoptab == add_optab
+ ? LT : GT),
+ newx, x,
word_mode, 1, normalizep);
/* Logical-ior the two poss. carry together. */
if (carry_out == 0)
break;
}
+ emit_move_insn (target_piece, newx);
}
carry_in = carry_out;
else if (imag0)
res = imag0;
else if (binoptab->code == MINUS)
- res = expand_unop (submode, neg_optab, imag1, imagr, unsignedp);
+ res = expand_unop (submode,
+ binoptab == subv_optab ? negv_optab : neg_optab,
+ imag1, imagr, unsignedp);
else
res = imag1;
if (temp1 == 0 || temp2 == 0)
break;
- res = expand_binop (submode, sub_optab, temp1, temp2,
- realr, unsignedp, methods);
+ res = (expand_binop
+ (submode,
+ binoptab == smulv_optab ? subv_optab : sub_optab,
+ temp1, temp2, realr, unsignedp, methods));
if (res == 0)
break;
if (temp1 == 0 || temp2 == 0)
break;
- res = expand_binop (submode, add_optab, temp1, temp2,
- imagr, unsignedp, methods);
+ res = (expand_binop
+ (submode,
+ binoptab == smulv_optab ? addv_optab : add_optab,
+ temp1, temp2, imagr, unsignedp, methods));
if (res == 0)
break;
/* Pass 1 for NO_QUEUE so we don't lose any increments
if the libcall is cse'd or moved. */
value = emit_library_call_value (binoptab->handlers[(int) mode].libfunc,
- NULL_RTX, 1, mode, 2,
+ NULL_RTX, LCT_CONST, mode, 2,
op0, mode, op1x, op1_mode);
insns = get_insns ();
int unsignedp;
enum optab_methods methods;
{
- register rtx temp;
+ rtx temp;
optab direct_optab = unsignedp ? uoptab : soptab;
struct optab wide_soptab;
/* If we are inside an appropriately-short loop and one operand is an
expensive constant, force it into a register. */
if (CONSTANT_P (op0) && preserve_subexpressions_p ()
- && rtx_cost (op0, binoptab->code) > 2)
+ && rtx_cost (op0, binoptab->code) > COSTS_N_INSNS (1))
op0 = force_reg (mode, op0);
if (CONSTANT_P (op1) && preserve_subexpressions_p ()
- && rtx_cost (op1, binoptab->code) > 2)
+ && rtx_cost (op1, binoptab->code) > COSTS_N_INSNS (1))
op1 = force_reg (mode, op1);
if (targ0)
if (binoptab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
{
- register rtx t0 = gen_reg_rtx (wider_mode);
- register rtx t1 = gen_reg_rtx (wider_mode);
-
- if (expand_twoval_binop (binoptab,
- convert_modes (wider_mode, mode, op0,
- unsignedp),
- convert_modes (wider_mode, mode, op1,
- unsignedp),
+ rtx t0 = gen_reg_rtx (wider_mode);
+ rtx t1 = gen_reg_rtx (wider_mode);
+ rtx cop0 = convert_modes (wider_mode, mode, op0, unsignedp);
+ rtx cop1 = convert_modes (wider_mode, mode, op1, unsignedp);
+
+ if (expand_twoval_binop (binoptab, cop0, cop1,
t0, t1, unsignedp))
{
convert_move (targ0, t0, unsignedp);
return 0;
}
\f
+/* Wrapper around expand_unop which takes an rtx code to specify
+ the operation to perform, not an optab pointer. All other
+ arguments are the same. */
+rtx
+expand_simple_unop (mode, code, op0, target, unsignedp)
+ enum machine_mode mode;
+ enum rtx_code code;
+ rtx op0;
+ rtx target;
+ int unsignedp;
+{
+ optab unop = code_to_optab [(int) code];
+ if (unop == 0)
+ abort ();
+
+ return expand_unop (mode, unop, op0, target, unsignedp);
+}
+
/* Generate code to perform an operation specified by UNOPTAB
on operand OP0, with result having machine-mode MODE.
{
enum mode_class class;
enum machine_mode wider_mode;
- register rtx temp;
+ rtx temp;
rtx last = get_last_insn ();
rtx pat;
&& GET_MODE_SIZE (mode) > UNITS_PER_WORD
&& unoptab->handlers[(int) word_mode].insn_code != CODE_FOR_nothing)
{
- unsigned int i;
+ int i;
rtx insns;
if (target == 0 || target == op0)
rtx x = expand_unop (word_mode, unoptab,
operand_subword_force (op0, i, mode),
target_piece, unsignedp);
+
if (target_piece != x)
emit_move_insn (target_piece, x);
}
}
/* Open-code the complex negation operation. */
- else if (unoptab == neg_optab
+ else if (unoptab->code == NEG
&& (class == MODE_COMPLEX_FLOAT || class == MODE_COMPLEX_INT))
{
rtx target_piece;
/* Pass 1 for NO_QUEUE so we don't lose any increments
if the libcall is cse'd or moved. */
value = emit_library_call_value (unoptab->handlers[(int) mode].libfunc,
- NULL_RTX, 1, mode, 1, op0, mode);
+ NULL_RTX, LCT_CONST, mode, 1, op0, mode);
insns = get_insns ();
end_sequence ();
/* If there is no negate operation, try doing a subtract from zero.
The US Software GOFAST library needs this. */
- if (unoptab == neg_optab)
+ if (unoptab->code == NEG)
{
rtx temp;
- temp = expand_binop (mode, sub_optab, CONST0_RTX (mode), op0,
- target, unsignedp, OPTAB_LIB_WIDEN);
+ temp = expand_binop (mode,
+ unoptab == negv_optab ? subv_optab : sub_optab,
+ CONST0_RTX (mode), op0,
+ target, unsignedp, OPTAB_LIB_WIDEN);
if (temp)
return temp;
}
*/
rtx
-expand_abs (mode, op0, target, safe)
+expand_abs (mode, op0, target, result_unsignedp, safe)
enum machine_mode mode;
rtx op0;
rtx target;
+ int result_unsignedp;
int safe;
{
rtx temp, op1;
+ if (! flag_trapv)
+ result_unsignedp = 1;
+
/* First try to do it with a special abs instruction. */
- temp = expand_unop (mode, abs_optab, op0, target, 0);
+ temp = expand_unop (mode, result_unsignedp ? abs_optab : absv_optab,
+ op0, target, 0);
if (temp != 0)
return temp;
/* If this machine has expensive jumps, we can do integer absolute
value of X as (((signed) x >> (W-1)) ^ x) - ((signed) x >> (W-1)),
- where W is the width of MODE. But don't do this if the machine has
- conditional arithmetic since the branches will be converted into
- a conditional negation insn. */
+ where W is the width of MODE. */
-#ifndef HAVE_conditional_arithmetic
if (GET_MODE_CLASS (mode) == MODE_INT && BRANCH_COST >= 2)
{
rtx extended = expand_shift (RSHIFT_EXPR, mode, op0,
temp = expand_binop (mode, xor_optab, extended, op0, target, 0,
OPTAB_LIB_WIDEN);
if (temp != 0)
- temp = expand_binop (mode, sub_optab, temp, extended, target, 0,
- OPTAB_LIB_WIDEN);
+ temp = expand_binop (mode, result_unsignedp ? sub_optab : subv_optab,
+ temp, extended, target, 0, OPTAB_LIB_WIDEN);
if (temp != 0)
return temp;
}
-#endif
/* If that does not win, use conditional jump and negate. */
NULL_RTX, op1);
else
do_compare_rtx_and_jump (target, CONST0_RTX (mode), GE, 0, mode,
- NULL_RTX, 0, NULL_RTX, op1);
+ NULL_RTX, NULL_RTX, op1);
- op0 = expand_unop (mode, neg_optab, target, target, 0);
+ op0 = expand_unop (mode, result_unsignedp ? neg_optab : negv_optab,
+ target, target, 0);
if (op0 != target)
emit_move_insn (target, op0);
emit_label (op1);
{
enum mode_class class = GET_MODE_CLASS (mode);
enum machine_mode wider_mode;
- register rtx temp;
+ rtx temp;
rtx entry_last = get_last_insn ();
rtx last;
rtx pat;
+ optab this_abs_optab;
/* Find the correct mode for the real and imaginary parts. */
enum machine_mode submode
if (target)
target = protect_from_queue (target, 1);
- if (abs_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
+ this_abs_optab = ! unsignedp && flag_trapv
+ && (GET_MODE_CLASS(mode) == MODE_INT)
+ ? absv_optab : abs_optab;
+
+ if (this_abs_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing)
{
- int icode = (int) abs_optab->handlers[(int) mode].insn_code;
+ int icode = (int) this_abs_optab->handlers[(int) mode].insn_code;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
rtx xop0 = op0;
if (pat)
{
if (GET_CODE (pat) == SEQUENCE
- && ! add_equal_note (pat, temp, abs_optab->code, xop0, NULL_RTX))
+ && ! add_equal_note (pat, temp, this_abs_optab->code, xop0,
+ NULL_RTX))
{
delete_insns_since (last);
- return expand_unop (mode, abs_optab, op0, NULL_RTX, unsignedp);
+ return expand_unop (mode, this_abs_optab, op0, NULL_RTX,
+ unsignedp);
}
emit_insn (pat);
for (wider_mode = GET_MODE_WIDER_MODE (mode); wider_mode != VOIDmode;
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
- if (abs_optab->handlers[(int) wider_mode].insn_code != CODE_FOR_nothing)
+ if (this_abs_optab->handlers[(int) wider_mode].insn_code
+ != CODE_FOR_nothing)
{
rtx xop0 = op0;
/* Open-code the complex absolute-value operation
if we can open-code sqrt. Otherwise it's not worth while. */
- if (sqrt_optab->handlers[(int) submode].insn_code != CODE_FOR_nothing)
+ if (sqrt_optab->handlers[(int) submode].insn_code != CODE_FOR_nothing
+ && ! flag_trapv)
{
rtx real, imag, total;
}
/* Now try a library call in this mode. */
- if (abs_optab->handlers[(int) mode].libfunc)
+ if (this_abs_optab->handlers[(int) mode].libfunc)
{
rtx insns;
rtx value;
/* Pass 1 for NO_QUEUE so we don't lose any increments
if the libcall is cse'd or moved. */
value = emit_library_call_value (abs_optab->handlers[(int) mode].libfunc,
- NULL_RTX, 1, submode, 1, op0, mode);
+ NULL_RTX, LCT_CONST, submode, 1, op0, mode);
insns = get_insns ();
end_sequence ();
target = gen_reg_rtx (submode);
emit_libcall_block (insns, target, value,
- gen_rtx_fmt_e (abs_optab->code, mode, op0));
+ gen_rtx_fmt_e (this_abs_optab->code, mode, op0));
return target;
}
for (wider_mode = GET_MODE_WIDER_MODE (mode); wider_mode != VOIDmode;
wider_mode = GET_MODE_WIDER_MODE (wider_mode))
{
- if ((abs_optab->handlers[(int) wider_mode].insn_code
+ if ((this_abs_optab->handlers[(int) wider_mode].insn_code
!= CODE_FOR_nothing)
- || abs_optab->handlers[(int) wider_mode].libfunc)
+ || this_abs_optab->handlers[(int) wider_mode].libfunc)
{
rtx xop0 = op0;
rtx op0;
enum rtx_code code;
{
- register rtx temp;
+ rtx temp;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
rtx pat;
rtx result;
rtx equiv;
{
+ rtx final_dest = target;
rtx prev, next, first, last, insn;
+ /* If this is a reg with REG_USERVAR_P set, then it could possibly turn
+ into a MEM later. Protect the libcall block from this change. */
+ if (! REG_P (target) || REG_USERVAR_P (target))
+ target = gen_reg_rtx (GET_MODE (target));
+
+ /* If we're using non-call exceptions, a libcall corresponding to an
+ operation that may trap may also trap. */
+ if (flag_non_call_exceptions && may_trap_p (equiv))
+ {
+ for (insn = insns; insn; insn = NEXT_INSN (insn))
+ if (GET_CODE (insn) == CALL_INSN)
+ {
+ rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
+
+ if (note != 0 && INTVAL (XEXP (note, 0)) <= 0)
+ remove_note (insn, note);
+ }
+ }
+ else
/* look for any CALL_INSNs in this sequence, and attach a REG_EH_REGION
reg note to indicate that this call cannot throw or execute a nonlocal
- goto. (Unless there is already a REG_EH_REGION note, in which case
- we update it.) */
-
- for (insn = insns; insn; insn = NEXT_INSN (insn))
- if (GET_CODE (insn) == CALL_INSN)
- {
- rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
-
- if (note != 0)
- XEXP (note, 0) = GEN_INT (-1);
- else
- REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EH_REGION, GEN_INT (-1),
- REG_NOTES (insn));
- }
+ goto (unless there is already a REG_EH_REGION note, in which case
+ we update it). */
+ for (insn = insns; insn; insn = NEXT_INSN (insn))
+ if (GET_CODE (insn) == CALL_INSN)
+ {
+ rtx note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
+
+ if (note != 0)
+ XEXP (note, 0) = GEN_INT (-1);
+ else
+ REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EH_REGION, GEN_INT (-1),
+ REG_NOTES (insn));
+ }
/* First emit all insns that set pseudos. Remove them from the list as
we go. Avoid insns that set pseudos which were referenced in previous
remove_note (last, find_reg_note (last, REG_EQUAL, NULL_RTX));
}
+ if (final_dest != target)
+ emit_move_insn (final_dest, target);
+
if (prev == 0)
first = get_insns ();
else
first = NEXT_INSN (prev);
/* Encapsulate the block so it gets manipulated as a unit. */
- REG_NOTES (first) = gen_rtx_INSN_LIST (REG_LIBCALL, last,
- REG_NOTES (first));
- REG_NOTES (last) = gen_rtx_INSN_LIST (REG_RETVAL, first, REG_NOTES (last));
+ if (!flag_non_call_exceptions || !may_trap_p (equiv))
+ {
+ REG_NOTES (first) = gen_rtx_INSN_LIST (REG_LIBCALL, last,
+ REG_NOTES (first));
+ REG_NOTES (last) = gen_rtx_INSN_LIST (REG_RETVAL, first,
+ REG_NOTES (last));
+ }
}
\f
/* Generate code to store zero in X. */
*PUNSIGNEDP nonzero says that the operands are unsigned;
this matters if they need to be widened.
- If they have mode BLKmode, then SIZE specifies the size of both operands,
- and ALIGN specifies the known shared alignment of the operands.
+ If they have mode BLKmode, then SIZE specifies the size of both operands.
This function performs all the setup necessary so that the caller only has
to emit a single comparison insn. This setup can involve doing a BLKmode
The values which are passed in through pointers can be modified; the caller
should perform the comparison on the modified values. */
-void
-prepare_cmp_insn (px, py, pcomparison, size, pmode, punsignedp, align,
- purpose)
+static void
+prepare_cmp_insn (px, py, pcomparison, size, pmode, punsignedp, purpose)
rtx *px, *py;
enum rtx_code *pcomparison;
rtx size;
enum machine_mode *pmode;
int *punsignedp;
- int align ATTRIBUTE_UNUSED;
enum can_compare_purpose purpose;
{
enum machine_mode mode = *pmode;
rtx x = *px, y = *py;
int unsignedp = *punsignedp;
enum mode_class class;
- rtx opalign ATTRIBUTE_UNUSED = GEN_INT (align / BITS_PER_UNIT);;
class = GET_MODE_CLASS (mode);
/* If we are inside an appropriately-short loop and one operand is an
expensive constant, force it into a register. */
if (CONSTANT_P (x) && preserve_subexpressions_p ()
- && rtx_cost (x, COMPARE) > 2)
+ && rtx_cost (x, COMPARE) > COSTS_N_INSNS (1))
x = force_reg (mode, x);
if (CONSTANT_P (y) && preserve_subexpressions_p ()
- && rtx_cost (y, COMPARE) > 2)
+ && rtx_cost (y, COMPARE) > COSTS_N_INSNS (1))
y = force_reg (mode, y);
#ifdef HAVE_cc0
{
rtx result;
enum machine_mode result_mode;
+ rtx opalign ATTRIBUTE_UNUSED
+ = GEN_INT (MIN (MEM_ALIGN (x), MEM_ALIGN (y)) / BITS_PER_UNIT);
emit_queue ();
x = protect_from_queue (x, 0);
#endif
{
#ifdef TARGET_MEM_FUNCTIONS
- emit_library_call (memcmp_libfunc, 2,
+ emit_library_call (memcmp_libfunc, LCT_PURE_MAKE_BLOCK,
TYPE_MODE (integer_type_node), 3,
XEXP (x, 0), Pmode, XEXP (y, 0), Pmode,
convert_to_mode (TYPE_MODE (sizetype), size,
TREE_UNSIGNED (sizetype)),
TYPE_MODE (sizetype));
#else
- emit_library_call (bcmp_libfunc, 2,
+ emit_library_call (bcmp_libfunc, LCT_PURE_MAKE_BLOCK,
TYPE_MODE (integer_type_node), 3,
XEXP (x, 0), Pmode, XEXP (y, 0), Pmode,
convert_to_mode (TYPE_MODE (integer_type_node),
if (unsignedp && ucmp_optab->handlers[(int) mode].libfunc)
libfunc = ucmp_optab->handlers[(int) mode].libfunc;
- emit_library_call (libfunc, 1,
- word_mode, 2, x, mode, y, mode);
+ emit_library_call (libfunc, LCT_CONST_MAKE_BLOCK, word_mode, 2, x, mode,
+ y, mode);
/* Immediately move the result of the libcall into a pseudo
register so reload doesn't clobber the value if it needs
/* Before emitting an insn with code ICODE, make sure that X, which is going
to be used for operand OPNUM of the insn, is converted from mode MODE to
- WIDER_MODE (UNSIGNEDP determines whether it is a unsigned conversion), and
+ WIDER_MODE (UNSIGNEDP determines whether it is an unsigned conversion), and
that it is accepted by the operand predicate. Return the new value. */
rtx
need to be widened by emit_cmp_insn. UNSIGNEDP is also used to select
the proper branch condition code.
- If X and Y have mode BLKmode, then SIZE specifies the size of both X and Y,
- and ALIGN specifies the known shared alignment of X and Y.
+ If X and Y have mode BLKmode, then SIZE specifies the size of both X and Y.
MODE is the mode of the inputs (in case they are const_int).
unsigned variant based on UNSIGNEDP to select a proper jump instruction. */
void
-emit_cmp_and_jump_insns (x, y, comparison, size, mode, unsignedp, align, label)
+emit_cmp_and_jump_insns (x, y, comparison, size, mode, unsignedp, label)
rtx x, y;
enum rtx_code comparison;
rtx size;
enum machine_mode mode;
int unsignedp;
- unsigned int align;
rtx label;
{
- rtx op0;
- rtx op1;
-
- if ((CONSTANT_P (x) && ! CONSTANT_P (y))
- || (GET_CODE (x) == CONST_INT && GET_CODE (y) != CONST_INT))
+ rtx op0 = x, op1 = y;
+
+ /* Swap operands and condition to ensure canonical RTL. */
+ if (swap_commutative_operands_p (x, y))
{
- /* Swap operands and condition to ensure canonical RTL. */
- op0 = y;
- op1 = x;
+ /* If we're not emitting a branch, this means some caller
+ is out of sync. */
+ if (! label)
+ abort ();
+
+ op0 = y, op1 = x;
comparison = swap_condition (comparison);
}
- else
- {
- op0 = x;
- op1 = y;
- }
#ifdef HAVE_cc0
/* If OP0 is still a constant, then both X and Y must be constants. Force
emit_queue ();
if (unsignedp)
comparison = unsigned_condition (comparison);
- prepare_cmp_insn (&op0, &op1, &comparison, size, &mode, &unsignedp, align,
+
+ prepare_cmp_insn (&op0, &op1, &comparison, size, &mode, &unsignedp,
ccp_jump);
emit_cmp_and_jump_insn_1 (op0, op1, mode, comparison, unsignedp, label);
}
/* Like emit_cmp_and_jump_insns, but generate only the comparison. */
void
-emit_cmp_insn (x, y, comparison, size, mode, unsignedp, align)
+emit_cmp_insn (x, y, comparison, size, mode, unsignedp)
rtx x, y;
enum rtx_code comparison;
rtx size;
enum machine_mode mode;
int unsignedp;
- unsigned int align;
{
- emit_cmp_and_jump_insns (x, y, comparison, size, mode, unsignedp, align, 0);
+ emit_cmp_and_jump_insns (x, y, comparison, size, mode, unsignedp, 0);
}
\f
/* Emit a library call comparison between floating point X and Y.
if (libfunc == 0)
abort ();
- emit_library_call (libfunc, 1, word_mode, 2, x, mode, y, mode);
+ emit_library_call (libfunc, LCT_CONST_MAKE_BLOCK, word_mode, 2, x, mode, y,
+ mode);
/* Immediately move the result of the libcall into a pseudo
register so reload doesn't clobber the value if it needs
{
rtx tem, subtarget, comparison, insn;
enum insn_code icode;
+ enum rtx_code reversed;
/* If one operand is constant, make it the second one. Only do this
if the other operand is not constant as well. */
- if ((CONSTANT_P (op0) && ! CONSTANT_P (op1))
- || (GET_CODE (op0) == CONST_INT && GET_CODE (op1) != CONST_INT))
+ if (swap_commutative_operands_p (op0, op1))
{
tem = op0;
op0 = op1;
if (cmode == VOIDmode)
cmode = GET_MODE (op0);
- if (((CONSTANT_P (op2) && ! CONSTANT_P (op3))
- || (GET_CODE (op2) == CONST_INT && GET_CODE (op3) != CONST_INT))
- && (GET_MODE_CLASS (GET_MODE (op1)) != MODE_FLOAT
- || TARGET_FLOAT_FORMAT != IEEE_FLOAT_FORMAT || flag_fast_math))
+ if (swap_commutative_operands_p (op2, op3)
+ && ((reversed = reversed_comparison_code_parts (code, op0, op1, NULL))
+ != UNKNOWN))
{
tem = op2;
op2 = op3;
op3 = tem;
- code = reverse_condition (code);
+ code = reversed;
}
if (mode == VOIDmode)
and then the conditional move. */
comparison
- = compare_from_rtx (op0, op1, code, unsignedp, cmode, NULL_RTX, 0);
+ = compare_from_rtx (op0, op1, code, unsignedp, cmode, NULL_RTX);
/* ??? Watch for const0_rtx (nop) and const_true_rtx (unconditional)? */
/* We can get const0_rtx or const_true_rtx in some circumstances. Just
#endif /* HAVE_conditional_move */
\f
-/* These three functions generate an insn body and return it
+/* These functions generate an insn body and return it
rather than emitting the insn.
They do not protect from queued increments,
return (GEN_FCN (icode) (x, x, y));
}
+/* Generate and return an insn body to add r1 and c,
+ storing the result in r0. */
+rtx
+gen_add3_insn (r0, r1, c)
+ rtx r0, r1, c;
+{
+ int icode = (int) add_optab->handlers[(int) GET_MODE (r0)].insn_code;
+
+ if (icode == CODE_FOR_nothing
+ || ! ((*insn_data[icode].operand[0].predicate)
+ (r0, insn_data[icode].operand[0].mode))
+ || ! ((*insn_data[icode].operand[1].predicate)
+ (r1, insn_data[icode].operand[1].mode))
+ || ! ((*insn_data[icode].operand[2].predicate)
+ (c, insn_data[icode].operand[2].mode)))
+ return NULL_RTX;
+
+ return (GEN_FCN (icode) (r0, r1, c));
+}
+
int
-have_add2_insn (mode)
- enum machine_mode mode;
+have_add2_insn (x, y)
+ rtx x, y;
{
- return add_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing;
+ int icode;
+
+ if (GET_MODE (x) == VOIDmode)
+ abort ();
+
+ icode = (int) add_optab->handlers[(int) GET_MODE (x)].insn_code;
+
+ if (icode == CODE_FOR_nothing)
+ return 0;
+
+ if (! ((*insn_data[icode].operand[0].predicate)
+ (x, insn_data[icode].operand[0].mode))
+ || ! ((*insn_data[icode].operand[1].predicate)
+ (x, insn_data[icode].operand[1].mode))
+ || ! ((*insn_data[icode].operand[2].predicate)
+ (y, insn_data[icode].operand[2].mode)))
+ return 0;
+
+ return 1;
}
/* Generate and return an insn body to subtract Y from X. */
return (GEN_FCN (icode) (x, x, y));
}
+/* Generate and return an insn body to subtract r1 and c,
+ storing the result in r0. */
+rtx
+gen_sub3_insn (r0, r1, c)
+ rtx r0, r1, c;
+{
+ int icode = (int) sub_optab->handlers[(int) GET_MODE (r0)].insn_code;
+
+ if (icode == CODE_FOR_nothing
+ || ! ((*insn_data[icode].operand[0].predicate)
+ (r0, insn_data[icode].operand[0].mode))
+ || ! ((*insn_data[icode].operand[1].predicate)
+ (r1, insn_data[icode].operand[1].mode))
+ || ! ((*insn_data[icode].operand[2].predicate)
+ (c, insn_data[icode].operand[2].mode)))
+ return NULL_RTX;
+
+ return (GEN_FCN (icode) (r0, r1, c));
+}
+
int
-have_sub2_insn (mode)
- enum machine_mode mode;
+have_sub2_insn (x, y)
+ rtx x, y;
{
- return sub_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing;
+ int icode;
+
+ if (GET_MODE (x) == VOIDmode)
+ abort ();
+
+ icode = (int) sub_optab->handlers[(int) GET_MODE (x)].insn_code;
+
+ if (icode == CODE_FOR_nothing)
+ return 0;
+
+ if (! ((*insn_data[icode].operand[0].predicate)
+ (x, insn_data[icode].operand[0].mode))
+ || ! ((*insn_data[icode].operand[1].predicate)
+ (x, insn_data[icode].operand[1].mode))
+ || ! ((*insn_data[icode].operand[2].predicate)
+ (y, insn_data[icode].operand[2].mode)))
+ return 0;
+
+ return 1;
}
/* Generate the body of an instruction to copy Y into X.
gen_move_insn (x, y)
rtx x, y;
{
- register enum machine_mode mode = GET_MODE (x);
+ enum machine_mode mode = GET_MODE (x);
enum insn_code insn_code;
rtx seq;
x = gen_lowpart_common (tmode, x1);
if (x == 0 && GET_CODE (x1) == MEM)
{
- x = gen_rtx_MEM (tmode, XEXP (x1, 0));
- MEM_COPY_ATTRIBUTES (x, x1);
+ x = adjust_address_nv (x1, tmode, 0);
copy_replacements (x1, x);
}
y = gen_lowpart_common (tmode, y1);
if (y == 0 && GET_CODE (y1) == MEM)
{
- y = gen_rtx_MEM (tmode, XEXP (y1, 0));
- MEM_COPY_ATTRIBUTES (y, y1);
+ y = adjust_address_nv (y1, tmode, 0);
copy_replacements (y1, y);
}
}
enum machine_mode to_mode, from_mode;
int unsignedp;
{
- return extendtab[(int) to_mode][(int) from_mode][unsignedp != 0];
+#ifdef HAVE_ptr_extend
+ if (unsignedp < 0)
+ return CODE_FOR_ptr_extend;
+ else
+#endif
+ return extendtab[(int) to_mode][(int) from_mode][unsignedp != 0];
}
/* Generate the body of an insn to extend Y (with mode MFROM)
int unsignedp;
{
enum insn_code icode;
- register rtx target = to;
+ rtx target = to;
enum machine_mode fmode, imode;
/* Crash now, because we won't be able to decide which mode to use. */
/* Test whether the sign bit is set. */
emit_cmp_and_jump_insns (from, const0_rtx, LT, NULL_RTX, imode,
- 0, 0, neglabel);
+ 0, neglabel);
/* The sign bit is not set. Convert as signed. */
expand_float (target, from, 0);
do_pending_stack_adjust ();
emit_cmp_and_jump_insns (from, const0_rtx, GE, NULL_RTX, GET_MODE (from),
- 0, 0, label);
+ 0, label);
/* On SCO 3.2.1, ldexp rejects values outside [0.5, 1).
Rather than setting up a dconst_dot_5, let's hope SCO
start_sequence ();
- value = emit_library_call_value (libfcn, NULL_RTX, 1,
- GET_MODE (to),
- 1, from, GET_MODE (from));
+ value = emit_library_call_value (libfcn, NULL_RTX, LCT_CONST,
+ GET_MODE (to), 1, from,
+ GET_MODE (from));
insns = get_insns ();
end_sequence ();
void
expand_fix (to, from, unsignedp)
- register rtx to, from;
+ rtx to, from;
int unsignedp;
{
enum insn_code icode;
- register rtx target = to;
+ rtx target = to;
enum machine_mode fmode, imode;
int must_trunc = 0;
rtx libfcn = 0;
this conversion. If the integer mode is wider than the mode of TO,
we can do the conversion either signed or unsigned. */
- for (imode = GET_MODE (to); imode != VOIDmode;
- imode = GET_MODE_WIDER_MODE (imode))
- for (fmode = GET_MODE (from); fmode != VOIDmode;
- fmode = GET_MODE_WIDER_MODE (fmode))
+ for (fmode = GET_MODE (from); fmode != VOIDmode;
+ fmode = GET_MODE_WIDER_MODE (fmode))
+ for (imode = GET_MODE (to); imode != VOIDmode;
+ imode = GET_MODE_WIDER_MODE (imode))
{
int doing_unsigned = unsignedp;
/* See if we need to do the subtraction. */
do_pending_stack_adjust ();
emit_cmp_and_jump_insns (from, limit, GE, NULL_RTX, GET_MODE (from),
- 0, 0, lab1);
+ 0, lab1);
/* If not, do the signed "fix" and branch around fixup code. */
expand_fix (to, from, 0);
NULL_RTX, 0, OPTAB_LIB_WIDEN);
expand_fix (to, target, 0);
target = expand_binop (GET_MODE (to), xor_optab, to,
- GEN_INT ((HOST_WIDE_INT) 1 << (bitsize - 1)),
+ GEN_INT (trunc_int_for_mode
+ ((HOST_WIDE_INT) 1 << (bitsize - 1),
+ GET_MODE (to))),
to, 1, OPTAB_LIB_WIDEN);
if (target != to)
start_sequence ();
- value = emit_library_call_value (libfcn, NULL_RTX, 1, GET_MODE (to),
-
- 1, from, GET_MODE (from));
+ value = emit_library_call_value (libfcn, NULL_RTX, LCT_CONST,
+ GET_MODE (to), 1, from,
+ GET_MODE (from));
insns = get_insns ();
end_sequence ();
}
}
\f
-static optab
-init_optab (code)
+/* Report whether we have an instruction to perform the operation
+ specified by CODE on operands of mode MODE. */
+int
+have_insn_for (code, mode)
enum rtx_code code;
+ enum machine_mode mode;
+{
+ return (code_to_optab[(int) code] != 0
+ && (code_to_optab[(int) code]->handlers[(int) mode].insn_code
+ != CODE_FOR_nothing));
+}
+
+/* Create a blank optab. */
+static optab
+new_optab ()
{
int i;
optab op = (optab) xmalloc (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].libfunc = 0;
}
- if (code != UNKNOWN)
- code_to_optab[(int) code] = op;
+ return op;
+}
+/* Same, but fill in its code as CODE, and write it into the
+ code_to_optab table. */
+static inline optab
+init_optab (code)
+ enum rtx_code code;
+{
+ optab op = new_optab ();
+ op->code = code;
+ code_to_optab[(int) code] = op;
+ return op;
+}
+
+/* Same, but fill in its code as CODE, and do _not_ write it into
+ the code_to_optab table. */
+static inline optab
+init_optabv (code)
+ enum rtx_code code;
+{
+ optab op = new_optab ();
+ op->code = code;
return op;
}
static void
init_libfuncs (optable, first_mode, last_mode, opname, suffix)
- register optab optable;
- register int first_mode;
- register int last_mode;
- register const char *opname;
- register int suffix;
+ optab optable;
+ int first_mode;
+ int last_mode;
+ const char *opname;
+ int suffix;
{
- register int mode;
- register unsigned opname_len = strlen (opname);
+ int mode;
+ unsigned opname_len = strlen (opname);
for (mode = first_mode; (int) mode <= (int) last_mode;
mode = (enum machine_mode) ((int) mode + 1))
{
- register const char *mname = GET_MODE_NAME(mode);
- register unsigned mname_len = strlen (mname);
- register char *libfunc_name
- = ggc_alloc_string (NULL, 2 + opname_len + mname_len + 1 + 1);
- register char *p;
- register const char *q;
+ const char *mname = GET_MODE_NAME(mode);
+ unsigned mname_len = strlen (mname);
+ char *libfunc_name = alloca (2 + opname_len + mname_len + 1 + 1);
+ char *p;
+ const char *q;
p = libfunc_name;
*p++ = '_';
for (q = mname; *q; q++)
*p++ = TOLOWER (*q);
*p++ = suffix;
- *p++ = '\0';
+ *p = '\0';
optable->handlers[(int) mode].libfunc
- = gen_rtx_SYMBOL_REF (Pmode, libfunc_name);
+ = gen_rtx_SYMBOL_REF (Pmode, ggc_alloc_string (libfunc_name,
+ p - libfunc_name));
}
}
static void
init_integral_libfuncs (optable, opname, suffix)
- register optab optable;
- register const char *opname;
- register int suffix;
+ optab optable;
+ const char *opname;
+ int suffix;
{
init_libfuncs (optable, SImode, TImode, opname, suffix);
}
static void
init_floating_libfuncs (optable, opname, suffix)
- register optab optable;
- register const char *opname;
- register int suffix;
+ optab optable;
+ const char *opname;
+ int suffix;
{
init_libfuncs (optable, SFmode, TFmode, opname, suffix);
}
rtx
init_one_libfunc (name)
- register const char *name;
+ const char *name;
{
- if (ggc_p)
- name = ggc_alloc_string (name, -1);
-
- return gen_rtx_SYMBOL_REF (Pmode, name);
+ /* Create a FUNCTION_DECL that can be passed to ENCODE_SECTION_INFO. */
+ /* ??? We don't have any type information except for this is
+ a function. Pretend this is "int foo()". */
+ tree decl = build_decl (FUNCTION_DECL, get_identifier (name),
+ build_function_type (integer_type_node, NULL_TREE));
+ DECL_ARTIFICIAL (decl) = 1;
+ DECL_EXTERNAL (decl) = 1;
+ TREE_PUBLIC (decl) = 1;
+
+ /* Return the symbol_ref from the mem rtx. */
+ return XEXP (DECL_RTL (decl), 0);
}
/* Mark ARG (which is really an OPTAB *) for GC. */
#endif
add_optab = init_optab (PLUS);
+ addv_optab = init_optabv (PLUS);
sub_optab = init_optab (MINUS);
+ subv_optab = init_optabv (MINUS);
smul_optab = init_optab (MULT);
+ smulv_optab = init_optabv (MULT);
smul_highpart_optab = init_optab (UNKNOWN);
umul_highpart_optab = init_optab (UNKNOWN);
smul_widen_optab = init_optab (UNKNOWN);
umul_widen_optab = init_optab (UNKNOWN);
sdiv_optab = init_optab (DIV);
+ sdivv_optab = init_optabv (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);
ior_optab = init_optab (IOR);
smax_optab = init_optab (SMAX);
umin_optab = init_optab (UMIN);
umax_optab = init_optab (UMAX);
- mov_optab = init_optab (UNKNOWN);
- movstrict_optab = init_optab (UNKNOWN);
- cmp_optab = init_optab (UNKNOWN);
+
+ /* These three have codes assigned exclusively for the sake of
+ have_insn_for. */
+ mov_optab = init_optab (SET);
+ movstrict_optab = init_optab (STRICT_LOW_PART);
+ cmp_optab = init_optab (COMPARE);
+
ucmp_optab = init_optab (UNKNOWN);
tst_optab = init_optab (UNKNOWN);
neg_optab = init_optab (NEG);
+ negv_optab = init_optabv (NEG);
abs_optab = init_optab (ABS);
+ absv_optab = init_optabv (ABS);
one_cmpl_optab = init_optab (NOT);
ffs_optab = init_optab (FFS);
sqrt_optab = init_optab (SQRT);
cbranch_optab = init_optab (UNKNOWN);
cmov_optab = init_optab (UNKNOWN);
cstore_optab = init_optab (UNKNOWN);
+ push_optab = init_optab (UNKNOWN);
for (i = 0; i < NUM_MACHINE_MODES; i++)
{
/* Initialize the optabs with the names of the library functions. */
init_integral_libfuncs (add_optab, "add", '3');
init_floating_libfuncs (add_optab, "add", '3');
+ init_integral_libfuncs (addv_optab, "addv", '3');
+ init_floating_libfuncs (addv_optab, "add", '3');
init_integral_libfuncs (sub_optab, "sub", '3');
init_floating_libfuncs (sub_optab, "sub", '3');
+ init_integral_libfuncs (subv_optab, "subv", '3');
+ init_floating_libfuncs (subv_optab, "sub", '3');
init_integral_libfuncs (smul_optab, "mul", '3');
init_floating_libfuncs (smul_optab, "mul", '3');
+ init_integral_libfuncs (smulv_optab, "mulv", '3');
+ init_floating_libfuncs (smulv_optab, "mul", '3');
init_integral_libfuncs (sdiv_optab, "div", '3');
+ init_floating_libfuncs (sdiv_optab, "div", '3');
+ init_integral_libfuncs (sdivv_optab, "divv", '3');
init_integral_libfuncs (udiv_optab, "udiv", '3');
init_integral_libfuncs (sdivmod_optab, "divmod", '4');
init_integral_libfuncs (udivmod_optab, "udivmod", '4');
init_integral_libfuncs (smod_optab, "mod", '3');
init_integral_libfuncs (umod_optab, "umod", '3');
- init_floating_libfuncs (flodiv_optab, "div", '3');
init_floating_libfuncs (ftrunc_optab, "ftrunc", '2');
init_integral_libfuncs (and_optab, "and", '3');
init_integral_libfuncs (ior_optab, "ior", '3');
init_integral_libfuncs (umax_optab, "umax", '3');
init_integral_libfuncs (neg_optab, "neg", '2');
init_floating_libfuncs (neg_optab, "neg", '2');
+ init_integral_libfuncs (negv_optab, "negv", '2');
+ init_floating_libfuncs (negv_optab, "neg", '2');
init_integral_libfuncs (one_cmpl_optab, "one_cmpl", '2');
init_integral_libfuncs (ffs_optab, "ffs", '2');
= init_one_libfunc ("cabs");
/* The ffs function operates on `int'. */
-#ifndef INT_TYPE_SIZE
-#define INT_TYPE_SIZE BITS_PER_WORD
-#endif
ffs_optab->handlers[(int) mode_for_size (INT_TYPE_SIZE, MODE_INT, 0)].libfunc
= init_one_libfunc ("ffs");
trunctfdf2_libfunc = init_one_libfunc ("__trunctfdf2");
memcpy_libfunc = init_one_libfunc ("memcpy");
+ memmove_libfunc = init_one_libfunc ("memmove");
bcopy_libfunc = init_one_libfunc ("bcopy");
memcmp_libfunc = init_one_libfunc ("memcmp");
bcmp_libfunc = init_one_libfunc ("__gcc_bcmp");
memset_libfunc = init_one_libfunc ("memset");
bzero_libfunc = init_one_libfunc ("bzero");
- throw_libfunc = init_one_libfunc ("__throw");
- rethrow_libfunc = init_one_libfunc ("__rethrow");
- sjthrow_libfunc = init_one_libfunc ("__sjthrow");
- sjpopnthrow_libfunc = init_one_libfunc ("__sjpopnthrow");
- terminate_libfunc = init_one_libfunc ("__terminate");
- eh_rtime_match_libfunc = init_one_libfunc ("__eh_rtime_match");
+ unwind_resume_libfunc = init_one_libfunc (USING_SJLJ_EXCEPTIONS
+ ? "_Unwind_SjLj_Resume"
+ : "_Unwind_Resume");
#ifndef DONT_USE_BUILTIN_SETJMP
setjmp_libfunc = init_one_libfunc ("__builtin_setjmp");
longjmp_libfunc = init_one_libfunc ("__builtin_longjmp");
setjmp_libfunc = init_one_libfunc ("setjmp");
longjmp_libfunc = init_one_libfunc ("longjmp");
#endif
+ unwind_sjlj_register_libfunc = init_one_libfunc ("_Unwind_SjLj_Register");
+ unwind_sjlj_unregister_libfunc
+ = init_one_libfunc ("_Unwind_SjLj_Unregister");
eqhf2_libfunc = init_one_libfunc ("__eqhf2");
nehf2_libfunc = init_one_libfunc ("__nehf2");
fixunstfdi_libfunc = init_one_libfunc ("__fixunstfdi");
fixunstfti_libfunc = init_one_libfunc ("__fixunstfti");
- /* For check-memory-usage. */
- chkr_check_addr_libfunc = init_one_libfunc ("chkr_check_addr");
- chkr_set_right_libfunc = init_one_libfunc ("chkr_set_right");
- chkr_copy_bitmap_libfunc = init_one_libfunc ("chkr_copy_bitmap");
- chkr_check_exec_libfunc = init_one_libfunc ("chkr_check_exec");
- chkr_check_str_libfunc = init_one_libfunc ("chkr_check_str");
-
/* For function entry/exit instrumentation. */
profile_function_entry_libfunc
= init_one_libfunc ("__cyg_profile_func_enter");
ggc_add_rtx_root (libfunc_table, LTI_MAX);
}
\f
-#ifdef BROKEN_LDEXP
-
-/* SCO 3.2 apparently has a broken ldexp. */
-
-double
-ldexp(x,n)
- double x;
- int n;
-{
- if (n > 0)
- while (n--)
- x *= 2;
-
- return x;
-}
-#endif /* BROKEN_LDEXP */
-\f
#ifdef HAVE_conditional_trap
/* The insn generating function can not take an rtx_code argument.
TRAP_RTX is used as an rtx argument. Its code is replaced with
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