/* Expand the basic unary and binary arithmetic operations, for GNU compiler.
Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GCC.
return vec_shr_optab;
case VEC_WIDEN_MULT_HI_EXPR:
- return TYPE_UNSIGNED (type) ?
+ return TYPE_UNSIGNED (type) ?
vec_widen_umult_hi_optab : vec_widen_smult_hi_optab;
case VEC_WIDEN_MULT_LO_EXPR:
- return TYPE_UNSIGNED (type) ?
+ return TYPE_UNSIGNED (type) ?
vec_widen_umult_lo_optab : vec_widen_smult_lo_optab;
case VEC_UNPACK_HI_EXPR:
vec_unpacku_hi_optab : vec_unpacks_hi_optab;
case VEC_UNPACK_LO_EXPR:
- return TYPE_UNSIGNED (type) ?
+ return TYPE_UNSIGNED (type) ?
vec_unpacku_lo_optab : vec_unpacks_lo_optab;
case VEC_UNPACK_FLOAT_HI_EXPR:
case VEC_UNPACK_FLOAT_LO_EXPR:
/* The signedness is determined from input operand. */
- return TYPE_UNSIGNED (type) ?
+ return TYPE_UNSIGNED (type) ?
vec_unpacku_float_lo_optab : vec_unpacks_float_lo_optab;
case VEC_PACK_TRUNC_EXPR:
E.g, when called to expand the following operations, this is how
the arguments will be initialized:
nops OP0 OP1 WIDE_OP
- widening-sum 2 oprnd0 - oprnd1
+ widening-sum 2 oprnd0 - oprnd1
widening-dot-product 3 oprnd0 oprnd1 oprnd2
widening-mult 2 oprnd0 oprnd1 -
type-promotion (vec-unpack) 1 oprnd0 - - */
rtx
expand_widen_pattern_expr (sepops ops, rtx op0, rtx op1, rtx wide_op,
rtx target, int unsignedp)
-{
+{
tree oprnd0, oprnd1, oprnd2;
enum machine_mode wmode = VOIDmode, tmode0, tmode1 = VOIDmode;
optab widen_pattern_optab;
- int icode;
+ int icode;
enum machine_mode xmode0, xmode1 = VOIDmode, wxmode = VOIDmode;
rtx temp;
rtx pat;
NO_DEFER_POP;
do_compare_rtx_and_jump (cmp1, cmp2, cmp_code, false, op1_mode,
- 0, 0, subword_label);
+ 0, 0, subword_label, -1);
OK_DEFER_POP;
if (!expand_superword_shift (binoptab, outof_input, superword_op1,
avoid_expensive_constant (enum machine_mode mode, optab binoptab,
rtx x, bool unsignedp)
{
+ bool speed = optimize_insn_for_speed_p ();
+
if (mode != VOIDmode
&& optimize
&& CONSTANT_P (x)
- && rtx_cost (x, binoptab->code, optimize_insn_for_speed_p ())
- > COSTS_N_INSNS (1))
+ && rtx_cost (x, binoptab->code, speed) > rtx_cost (x, SET, speed))
{
if (CONST_INT_P (x))
{
rtx xop0 = op0, xop1 = op1;
rtx temp;
rtx swap;
-
+
if (target)
temp = target;
else
xop0 = xop1;
xop1 = swap;
}
-
+
/* If we are optimizing, force expensive constants into a register. */
xop0 = avoid_expensive_constant (mode0, binoptab, xop0, unsignedp);
if (!shift_optab_p (binoptab))
seem that we don't need to convert CONST_INTs, but we do, so
that they're properly zero-extended, sign-extended or truncated
for their mode. */
-
+
if (GET_MODE (xop0) != mode0 && mode0 != VOIDmode)
xop0 = convert_modes (mode0,
GET_MODE (xop0) != VOIDmode
? GET_MODE (xop0)
: mode,
xop0, unsignedp);
-
+
if (GET_MODE (xop1) != mode1 && mode1 != VOIDmode)
xop1 = convert_modes (mode1,
GET_MODE (xop1) != VOIDmode
? GET_MODE (xop1)
: mode,
xop1, unsignedp);
-
+
/* If operation is commutative,
try to make the first operand a register.
Even better, try to make it the same as the target.
/* Now, if insn's predicates don't allow our operands, put them into
pseudo regs. */
-
+
if (!insn_data[icode].operand[1].predicate (xop0, mode0)
&& mode0 != VOIDmode)
xop0 = copy_to_mode_reg (mode0, xop0);
-
+
if (!insn_data[icode].operand[2].predicate (xop1, mode1)
&& mode1 != VOIDmode)
xop1 = copy_to_mode_reg (mode1, xop1);
-
- if (binoptab == vec_pack_trunc_optab
+
+ if (binoptab == vec_pack_trunc_optab
|| binoptab == vec_pack_usat_optab
|| binoptab == vec_pack_ssat_optab
|| binoptab == vec_pack_ufix_trunc_optab
if (!insn_data[icode].operand[0].predicate (temp, tmp_mode))
temp = gen_reg_rtx (tmp_mode);
-
+
pat = GEN_FCN (icode) (temp, xop0, xop1);
if (pat)
{
return expand_binop (mode, binoptab, op0, op1, NULL_RTX,
unsignedp, methods);
}
-
+
emit_insn (pat);
return temp;
}
newop1 = expand_binop (GET_MODE (op1), sub_optab,
GEN_INT (bits), op1,
NULL_RTX, unsignedp, OPTAB_DIRECT);
-
+
temp = expand_binop_directly (mode, otheroptab, op0, newop1,
target, unsignedp, methods, last);
if (temp)
{
int i;
rtx insns;
- rtx equiv_value;
/* If TARGET is the same as one of the operands, the REG_EQUAL note
won't be accurate, so use a new target. */
if (i == GET_MODE_BITSIZE (mode) / BITS_PER_WORD)
{
- if (binoptab->code != UNKNOWN)
- equiv_value
- = gen_rtx_fmt_ee (binoptab->code, mode,
- copy_rtx (op0), copy_rtx (op1));
- else
- equiv_value = 0;
-
emit_insn (insns);
return target;
}
expand_ctz (enum machine_mode mode, rtx op0, rtx target)
{
rtx seq, temp;
-
+
if (optab_handler (clz_optab, mode)->insn_code == CODE_FOR_nothing)
return 0;
-
+
start_sequence ();
temp = expand_unop_direct (mode, neg_optab, op0, NULL_RTX, true);
/* Try calculating ffs(x) using ctz(x) if we have that instruction, or
else with the sequence used by expand_clz.
-
+
The ffs builtin promises to return zero for a zero value and ctz/clz
may have an undefined value in that case. If they do not give us a
convenient value, we have to generate a test and branch. */
if (defined_at_zero && val == -1)
/* No correction needed at zero. */;
- else
+ else
{
/* We don't try to do anything clever with the situation found
on some processors (eg Alpha) where ctz(0:mode) ==
NO_DEFER_POP;
do_compare_rtx_and_jump (target, CONST0_RTX (mode), GE, 0, mode,
- NULL_RTX, NULL_RTX, op1);
+ NULL_RTX, NULL_RTX, op1, -1);
op0 = expand_unop (mode, result_unsignedp ? neg_optab : negv_optab,
target, target, 0);
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.
+ the value that is stored into TARGET.
Return false if expansion failed. */
emit_libcall_block (rtx insns, rtx target, rtx result, rtx equiv)
{
rtx final_dest = target;
- rtx prev, next, last, insn;
+ rtx next, 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. */
break;
}
- prev = get_last_insn ();
-
/* Write the remaining insns followed by the final copy. */
-
for (insn = insns; insn; insn = next)
{
next = NEXT_INSN (insn);
/* There are two kinds of comparison routines. Biased routines
return 0/1/2, and unbiased routines return -1/0/1. Other parts
of gcc expect that the comparison operation is equivalent
- to the modified comparison. For signed comparisons compare the
+ to the modified comparison. For signed comparisons compare the
result against 1 in the biased case, and zero in the unbiased
case. For unsigned comparisons always compare against 1 after
biasing the unbiased result by adding 1. This gives us a way to
if (!TARGET_LIB_INT_CMP_BIASED)
{
if (unsignedp)
- x = plus_constant (result, 1);
+ x = plus_constant (result, 1);
else
y = const0_rtx;
}
prepare_cmp_insn (x, y, comparison, NULL_RTX, unsignedp, methods,
ptest, pmode);
}
- else
+ else
prepare_float_lib_cmp (x, y, comparison, ptest, pmode);
return;
if ((GET_MODE_CLASS (tmode) == MODE_FLOAT && DECIMAL_FLOAT_MODE_P (fmode))
|| (GET_MODE_CLASS (fmode) == MODE_FLOAT && DECIMAL_FLOAT_MODE_P (tmode)))
gen_interclass_conv_libfunc (tab, opname, tmode, fmode);
-
+
if (GET_MODE_PRECISION (fmode) <= GET_MODE_PRECISION (tmode))
return;
if ((GET_MODE_CLASS (tmode) == MODE_FLOAT && DECIMAL_FLOAT_MODE_P (fmode))
|| (GET_MODE_CLASS (fmode) == MODE_FLOAT && DECIMAL_FLOAT_MODE_P (tmode)))
gen_interclass_conv_libfunc (tab, opname, tmode, fmode);
-
+
if (GET_MODE_PRECISION (fmode) > GET_MODE_PRECISION (tmode))
return;
init_optabs (void)
{
unsigned int i;
- enum machine_mode int_mode;
static bool reinit;
libfunc_hash = htab_create_ggc (10, hash_libfunc, eq_libfunc, NULL);
init_optab (ssum_widen_optab, UNKNOWN);
init_optab (usum_widen_optab, UNKNOWN);
- init_optab (sdot_prod_optab, UNKNOWN);
+ init_optab (sdot_prod_optab, UNKNOWN);
init_optab (udot_prod_optab, UNKNOWN);
init_optab (vec_extract_optab, UNKNOWN);
/* The ffs function operates on `int'. Fall back on it if we do not
have a libgcc2 function for that width. */
if (INT_TYPE_SIZE < BITS_PER_WORD)
- {
- int_mode = mode_for_size (INT_TYPE_SIZE, MODE_INT, 0);
- set_optab_libfunc (ffs_optab, mode_for_size (INT_TYPE_SIZE, MODE_INT, 0),
- "ffs");
- }
+ set_optab_libfunc (ffs_optab, mode_for_size (INT_TYPE_SIZE, MODE_INT, 0),
+ "ffs");
/* Explicitly initialize the bswap libfuncs since we need them to be
valid for things other than word_mode. */
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