2013-12-04 18:49:14 +08:00
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/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
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2019-01-01 18:31:27 +08:00
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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2013-12-04 18:49:14 +08:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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In addition to the permissions in the GNU Lesser General Public
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License, the Free Software Foundation gives you unlimited
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permission to link the compiled version of this file into
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combinations with other programs, and to distribute those
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combinations without any restriction coming from the use of this
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file. (The Lesser General Public License restrictions do apply in
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other respects; for example, they cover modification of the file,
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and distribution when not linked into a combine executable.)
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* You have to define the following before including this file:
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UWtype -- An unsigned type, default type for operations (typically a "word")
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UHWtype -- An unsigned type, at least half the size of UWtype.
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UDWtype -- An unsigned type, at least twice as large a UWtype
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W_TYPE_SIZE -- size in bits of UWtype
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UQItype -- Unsigned 8 bit type.
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SItype, USItype -- Signed and unsigned 32 bit types.
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DItype, UDItype -- Signed and unsigned 64 bit types.
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On a 32 bit machine UWtype should typically be USItype;
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on a 64 bit machine, UWtype should typically be UDItype. */
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#define __BITS4 (W_TYPE_SIZE / 4)
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#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
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#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
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#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
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#ifndef W_TYPE_SIZE
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#define W_TYPE_SIZE 32
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#define UWtype USItype
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#define UHWtype USItype
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#define UDWtype UDItype
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#endif
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/* Used in glibc only. */
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#ifndef attribute_hidden
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#define attribute_hidden
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#endif
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extern const UQItype __clz_tab[256] attribute_hidden;
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/* Define auxiliary asm macros.
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1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two
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UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype
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word product in HIGH_PROD and LOW_PROD.
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2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
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UDWtype product. This is just a variant of umul_ppmm.
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3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
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denominator) divides a UDWtype, composed by the UWtype integers
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HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
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in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
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than DENOMINATOR for correct operation. If, in addition, the most
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significant bit of DENOMINATOR must be 1, then the pre-processor symbol
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UDIV_NEEDS_NORMALIZATION is defined to 1.
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4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
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denominator). Like udiv_qrnnd but the numbers are signed. The quotient
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is rounded towards 0.
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5) count_leading_zeros(count, x) counts the number of zero-bits from the
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msb to the first nonzero bit in the UWtype X. This is the number of
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steps X needs to be shifted left to set the msb. Undefined for X == 0,
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unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
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6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
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from the least significant end.
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7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
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high_addend_2, low_addend_2) adds two UWtype integers, composed by
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HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
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respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
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(i.e. carry out) is not stored anywhere, and is lost.
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8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
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high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
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composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
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LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
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and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
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and is lost.
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If any of these macros are left undefined for a particular CPU,
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C macros are used. */
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/* The CPUs come in alphabetical order below.
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Please add support for more CPUs here, or improve the current support
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for the CPUs below!
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(E.g. WE32100, IBM360.) */
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#if defined (__GNUC__) && !defined (NO_ASM)
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/* We sometimes need to clobber "cc" with gcc2, but that would not be
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understood by gcc1. Use cpp to avoid major code duplication. */
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#if __GNUC__ < 2
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#define __CLOBBER_CC
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#define __AND_CLOBBER_CC
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#else /* __GNUC__ >= 2 */
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#define __CLOBBER_CC : "cc"
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#define __AND_CLOBBER_CC , "cc"
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#endif /* __GNUC__ < 2 */
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2014-05-02 00:09:33 +08:00
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#if defined (__aarch64__)
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#if W_TYPE_SIZE == 32
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#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
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#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
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#define COUNT_LEADING_ZEROS_0 32
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#endif /* W_TYPE_SIZE == 32 */
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#if W_TYPE_SIZE == 64
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#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clzll (X))
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#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctzll (X))
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#define COUNT_LEADING_ZEROS_0 64
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#endif /* W_TYPE_SIZE == 64 */
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#endif /* __aarch64__ */
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2013-12-04 18:49:14 +08:00
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#if defined (__alpha) && W_TYPE_SIZE == 64
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2015-07-15 00:17:41 +08:00
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/* There is a bug in g++ before version 5 that
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errors on __builtin_alpha_umulh. */
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#if !defined(__cplusplus) || __GNUC__ >= 5
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#define umul_ppmm(ph, pl, m0, m1) \
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do { \
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UDItype __m0 = (m0), __m1 = (m1); \
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(ph) = __builtin_alpha_umulh (__m0, __m1); \
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(pl) = __m0 * __m1; \
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} while (0)
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#define UMUL_TIME 46
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2015-07-15 00:17:41 +08:00
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#endif /* !c++ */
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2013-12-04 18:49:14 +08:00
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#ifndef LONGLONG_STANDALONE
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#define udiv_qrnnd(q, r, n1, n0, d) \
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do { UDItype __r; \
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(q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
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(r) = __r; \
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} while (0)
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extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
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#define UDIV_TIME 220
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#endif /* LONGLONG_STANDALONE */
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#ifdef __alpha_cix__
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#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
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#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
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#define COUNT_LEADING_ZEROS_0 64
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#else
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#define count_leading_zeros(COUNT,X) \
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do { \
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UDItype __xr = (X), __t, __a; \
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__t = __builtin_alpha_cmpbge (0, __xr); \
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__a = __clz_tab[__t ^ 0xff] - 1; \
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__t = __builtin_alpha_extbl (__xr, __a); \
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(COUNT) = 64 - (__clz_tab[__t] + __a*8); \
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} while (0)
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#define count_trailing_zeros(COUNT,X) \
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do { \
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UDItype __xr = (X), __t, __a; \
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__t = __builtin_alpha_cmpbge (0, __xr); \
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__t = ~__t & -~__t; \
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__a = ((__t & 0xCC) != 0) * 2; \
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__a += ((__t & 0xF0) != 0) * 4; \
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__a += ((__t & 0xAA) != 0); \
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__t = __builtin_alpha_extbl (__xr, __a); \
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__a <<= 3; \
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__t &= -__t; \
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__a += ((__t & 0xCC) != 0) * 2; \
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__a += ((__t & 0xF0) != 0) * 4; \
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__a += ((__t & 0xAA) != 0); \
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(COUNT) = __a; \
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} while (0)
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#endif /* __alpha_cix__ */
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#endif /* __alpha */
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#if defined (__arc__) && W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "%r" ((USItype) (ah)), \
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2017-09-16 00:40:33 +08:00
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"rICal" ((USItype) (bh)), \
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"%r" ((USItype) (al)), \
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"rICal" ((USItype) (bl)))
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2013-12-04 18:49:14 +08:00
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "r" ((USItype) (ah)), \
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2017-09-16 00:40:33 +08:00
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"rICal" ((USItype) (bh)), \
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"r" ((USItype) (al)), \
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"rICal" ((USItype) (bl)))
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2013-12-04 18:49:14 +08:00
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#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
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#ifdef __ARC_NORM__
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#define count_leading_zeros(count, x) \
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do \
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{ \
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SItype c_; \
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\
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__asm__ ("norm.f\t%0,%1\n\tmov.mi\t%0,-1" : "=r" (c_) : "r" (x) : "cc");\
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(count) = c_ + 1; \
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} \
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while (0)
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#define COUNT_LEADING_ZEROS_0 32
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2017-09-16 00:40:33 +08:00
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#endif /* __ARC_NORM__ */
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#endif /* __arc__ */
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2013-12-04 18:49:14 +08:00
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#if defined (__arm__) && (defined (__thumb2__) || !defined (__thumb__)) \
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&& W_TYPE_SIZE == 32
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#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
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__asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "%r" ((USItype) (ah)), \
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"rI" ((USItype) (bh)), \
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"%r" ((USItype) (al)), \
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"rI" ((USItype) (bl)) __CLOBBER_CC)
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#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
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__asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
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: "=r" ((USItype) (sh)), \
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"=&r" ((USItype) (sl)) \
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: "r" ((USItype) (ah)), \
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"rI" ((USItype) (bh)), \
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"r" ((USItype) (al)), \
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"rI" ((USItype) (bl)) __CLOBBER_CC)
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# if defined(__ARM_ARCH_2__) || defined(__ARM_ARCH_2A__) \
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|| defined(__ARM_ARCH_3__)
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# define umul_ppmm(xh, xl, a, b) \
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do { \
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register USItype __t0, __t1, __t2; \
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__asm__ ("%@ Inlined umul_ppmm\n" \
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" mov %2, %5, lsr #16\n" \
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" mov %0, %6, lsr #16\n" \
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" bic %3, %5, %2, lsl #16\n" \
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" bic %4, %6, %0, lsl #16\n" \
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" mul %1, %3, %4\n" \
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" mul %4, %2, %4\n" \
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" mul %3, %0, %3\n" \
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" mul %0, %2, %0\n" \
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" adds %3, %4, %3\n" \
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" addcs %0, %0, #65536\n" \
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" adds %1, %1, %3, lsl #16\n" \
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" adc %0, %0, %3, lsr #16" \
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: "=&r" ((USItype) (xh)), \
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"=r" ((USItype) (xl)), \
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"=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
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: "r" ((USItype) (a)), \
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"r" ((USItype) (b)) __CLOBBER_CC ); \
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} while (0)
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# define UMUL_TIME 20
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|
# else
|
|
|
|
|
# define umul_ppmm(xh, xl, a, b) \
|
|
|
|
|
do { \
|
|
|
|
|
/* Generate umull, under compiler control. */ \
|
|
|
|
|
register UDItype __t0 = (UDItype)(USItype)(a) * (USItype)(b); \
|
|
|
|
|
(xl) = (USItype)__t0; \
|
|
|
|
|
(xh) = (USItype)(__t0 >> 32); \
|
|
|
|
|
} while (0)
|
|
|
|
|
# define UMUL_TIME 3
|
|
|
|
|
# endif
|
|
|
|
|
# define UDIV_TIME 100
|
|
|
|
|
#endif /* __arm__ */
|
|
|
|
|
|
|
|
|
|
#if defined(__arm__)
|
|
|
|
|
/* Let gcc decide how best to implement count_leading_zeros. */
|
|
|
|
|
#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
|
|
|
|
|
#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if defined (__AVR__)
|
|
|
|
|
|
|
|
|
|
#if W_TYPE_SIZE == 16
|
|
|
|
|
#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
|
|
|
|
|
#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 16
|
|
|
|
|
#endif /* W_TYPE_SIZE == 16 */
|
|
|
|
|
|
|
|
|
|
#if W_TYPE_SIZE == 32
|
|
|
|
|
#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
|
|
|
|
|
#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
|
|
|
#endif /* W_TYPE_SIZE == 32 */
|
|
|
|
|
|
|
|
|
|
#if W_TYPE_SIZE == 64
|
|
|
|
|
#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzll (X))
|
|
|
|
|
#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzll (X))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 64
|
|
|
|
|
#endif /* W_TYPE_SIZE == 64 */
|
|
|
|
|
|
|
|
|
|
#endif /* defined (__AVR__) */
|
|
|
|
|
|
|
|
|
|
#if defined (__CRIS__)
|
|
|
|
|
|
|
|
|
|
#if __CRIS_arch_version >= 3
|
|
|
|
|
#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
|
|
|
#endif /* __CRIS_arch_version >= 3 */
|
|
|
|
|
|
|
|
|
|
#if __CRIS_arch_version >= 8
|
|
|
|
|
#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
|
|
|
|
|
#endif /* __CRIS_arch_version >= 8 */
|
|
|
|
|
|
|
|
|
|
#if __CRIS_arch_version >= 10
|
|
|
|
|
#define __umulsidi3(u,v) ((UDItype)(USItype) (u) * (UDItype)(USItype) (v))
|
|
|
|
|
#else
|
|
|
|
|
#define __umulsidi3 __umulsidi3
|
|
|
|
|
extern UDItype __umulsidi3 (USItype, USItype);
|
|
|
|
|
#endif /* __CRIS_arch_version >= 10 */
|
|
|
|
|
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype __x = __umulsidi3 (u, v); \
|
|
|
|
|
(w0) = (USItype) (__x); \
|
|
|
|
|
(w1) = (USItype) (__x >> 32); \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
/* FIXME: defining add_ssaaaa and sub_ddmmss should be advantageous for
|
|
|
|
|
DFmode ("double" intrinsics, avoiding two of the three insns handling
|
|
|
|
|
carry), but defining them as open-code C composing and doing the
|
|
|
|
|
operation in DImode (UDImode) shows that the DImode needs work:
|
|
|
|
|
register pressure from requiring neighboring registers and the
|
|
|
|
|
traffic to and from them come to dominate, in the 4.7 series. */
|
|
|
|
|
|
|
|
|
|
#endif /* defined (__CRIS__) */
|
|
|
|
|
|
|
|
|
|
#if defined (__hppa) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "%rM" ((USItype) (ah)), \
|
|
|
|
|
"rM" ((USItype) (bh)), \
|
|
|
|
|
"%rM" ((USItype) (al)), \
|
|
|
|
|
"rM" ((USItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "rM" ((USItype) (ah)), \
|
|
|
|
|
"rM" ((USItype) (bh)), \
|
|
|
|
|
"rM" ((USItype) (al)), \
|
|
|
|
|
"rM" ((USItype) (bl)))
|
|
|
|
|
#if defined (_PA_RISC1_1)
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
union \
|
|
|
|
|
{ \
|
|
|
|
|
UDItype __f; \
|
|
|
|
|
struct {USItype __w1, __w0;} __w1w0; \
|
|
|
|
|
} __t; \
|
|
|
|
|
__asm__ ("xmpyu %1,%2,%0" \
|
|
|
|
|
: "=x" (__t.__f) \
|
|
|
|
|
: "x" ((USItype) (u)), \
|
|
|
|
|
"x" ((USItype) (v))); \
|
|
|
|
|
(w1) = __t.__w1w0.__w1; \
|
|
|
|
|
(w0) = __t.__w1w0.__w0; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 8
|
|
|
|
|
#else
|
|
|
|
|
#define UMUL_TIME 30
|
|
|
|
|
#endif
|
|
|
|
|
#define UDIV_TIME 40
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
USItype __tmp; \
|
|
|
|
|
__asm__ ( \
|
|
|
|
|
"ldi 1,%0\n" \
|
|
|
|
|
" extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
|
|
|
|
|
" extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
|
|
|
|
|
" ldo 16(%0),%0 ; Yes. Perform add.\n" \
|
|
|
|
|
" extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
|
|
|
|
|
" extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
|
|
|
|
|
" ldo 8(%0),%0 ; Yes. Perform add.\n" \
|
|
|
|
|
" extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
|
|
|
|
|
" extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
|
|
|
|
|
" ldo 4(%0),%0 ; Yes. Perform add.\n" \
|
|
|
|
|
" extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
|
|
|
|
|
" extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
|
|
|
|
|
" ldo 2(%0),%0 ; Yes. Perform add.\n" \
|
|
|
|
|
" extru %1,30,1,%1 ; Extract bit 1.\n" \
|
|
|
|
|
" sub %0,%1,%0 ; Subtract it.\n" \
|
|
|
|
|
: "=r" (count), "=r" (__tmp) : "1" (x)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
|
|
|
|
|
#if !defined (__zarch__)
|
|
|
|
|
#define smul_ppmm(xh, xl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
union {DItype __ll; \
|
|
|
|
|
struct {USItype __h, __l;} __i; \
|
|
|
|
|
} __x; \
|
|
|
|
|
__asm__ ("lr %N0,%1\n\tmr %0,%2" \
|
|
|
|
|
: "=&r" (__x.__ll) \
|
|
|
|
|
: "r" (m0), "r" (m1)); \
|
|
|
|
|
(xh) = __x.__i.__h; (xl) = __x.__i.__l; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
do { \
|
|
|
|
|
union {DItype __ll; \
|
|
|
|
|
struct {USItype __h, __l;} __i; \
|
|
|
|
|
} __x; \
|
|
|
|
|
__x.__i.__h = n1; __x.__i.__l = n0; \
|
|
|
|
|
__asm__ ("dr %0,%2" \
|
|
|
|
|
: "=r" (__x.__ll) \
|
|
|
|
|
: "0" (__x.__ll), "r" (d)); \
|
|
|
|
|
(q) = __x.__i.__l; (r) = __x.__i.__h; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#else
|
|
|
|
|
#define smul_ppmm(xh, xl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
register SItype __r0 __asm__ ("0"); \
|
|
|
|
|
register SItype __r1 __asm__ ("1") = (m0); \
|
|
|
|
|
\
|
|
|
|
|
__asm__ ("mr\t%%r0,%3" \
|
|
|
|
|
: "=r" (__r0), "=r" (__r1) \
|
|
|
|
|
: "r" (__r1), "r" (m1)); \
|
|
|
|
|
(xh) = __r0; (xl) = __r1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
do { \
|
|
|
|
|
register SItype __r0 __asm__ ("0") = (n1); \
|
|
|
|
|
register SItype __r1 __asm__ ("1") = (n0); \
|
|
|
|
|
\
|
|
|
|
|
__asm__ ("dr\t%%r0,%4" \
|
|
|
|
|
: "=r" (__r0), "=r" (__r1) \
|
|
|
|
|
: "r" (__r0), "r" (__r1), "r" (d)); \
|
|
|
|
|
(q) = __r1; (r) = __r0; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif /* __zarch__ */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("add{l} {%5,%1|%1,%5}\n\tadc{l} {%3,%0|%0,%3}" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "%0" ((USItype) (ah)), \
|
|
|
|
|
"g" ((USItype) (bh)), \
|
|
|
|
|
"%1" ((USItype) (al)), \
|
|
|
|
|
"g" ((USItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("sub{l} {%5,%1|%1,%5}\n\tsbb{l} {%3,%0|%0,%3}" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "0" ((USItype) (ah)), \
|
|
|
|
|
"g" ((USItype) (bh)), \
|
|
|
|
|
"1" ((USItype) (al)), \
|
|
|
|
|
"g" ((USItype) (bl)))
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ("mul{l} %3" \
|
|
|
|
|
: "=a" ((USItype) (w0)), \
|
|
|
|
|
"=d" ((USItype) (w1)) \
|
|
|
|
|
: "%0" ((USItype) (u)), \
|
|
|
|
|
"rm" ((USItype) (v)))
|
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, dv) \
|
|
|
|
|
__asm__ ("div{l} %4" \
|
|
|
|
|
: "=a" ((USItype) (q)), \
|
|
|
|
|
"=d" ((USItype) (r)) \
|
|
|
|
|
: "0" ((USItype) (n0)), \
|
|
|
|
|
"1" ((USItype) (n1)), \
|
|
|
|
|
"rm" ((USItype) (dv)))
|
|
|
|
|
#define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
|
|
|
|
|
#define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
|
|
|
|
|
#define UMUL_TIME 40
|
|
|
|
|
#define UDIV_TIME 40
|
|
|
|
|
#endif /* 80x86 */
|
|
|
|
|
|
2014-05-02 00:09:33 +08:00
|
|
|
#if defined (__x86_64__) && W_TYPE_SIZE == 64
|
2013-12-04 18:49:14 +08:00
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}" \
|
|
|
|
|
: "=r" ((UDItype) (sh)), \
|
|
|
|
|
"=&r" ((UDItype) (sl)) \
|
|
|
|
|
: "%0" ((UDItype) (ah)), \
|
|
|
|
|
"rme" ((UDItype) (bh)), \
|
|
|
|
|
"%1" ((UDItype) (al)), \
|
|
|
|
|
"rme" ((UDItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("sub{q} {%5,%1|%1,%5}\n\tsbb{q} {%3,%0|%0,%3}" \
|
|
|
|
|
: "=r" ((UDItype) (sh)), \
|
|
|
|
|
"=&r" ((UDItype) (sl)) \
|
|
|
|
|
: "0" ((UDItype) (ah)), \
|
|
|
|
|
"rme" ((UDItype) (bh)), \
|
|
|
|
|
"1" ((UDItype) (al)), \
|
|
|
|
|
"rme" ((UDItype) (bl)))
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ("mul{q} %3" \
|
|
|
|
|
: "=a" ((UDItype) (w0)), \
|
|
|
|
|
"=d" ((UDItype) (w1)) \
|
|
|
|
|
: "%0" ((UDItype) (u)), \
|
|
|
|
|
"rm" ((UDItype) (v)))
|
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, dv) \
|
|
|
|
|
__asm__ ("div{q} %4" \
|
|
|
|
|
: "=a" ((UDItype) (q)), \
|
|
|
|
|
"=d" ((UDItype) (r)) \
|
|
|
|
|
: "0" ((UDItype) (n0)), \
|
|
|
|
|
"1" ((UDItype) (n1)), \
|
|
|
|
|
"rm" ((UDItype) (dv)))
|
|
|
|
|
#define count_leading_zeros(count, x) ((count) = __builtin_clzll (x))
|
|
|
|
|
#define count_trailing_zeros(count, x) ((count) = __builtin_ctzll (x))
|
|
|
|
|
#define UMUL_TIME 40
|
|
|
|
|
#define UDIV_TIME 40
|
|
|
|
|
#endif /* x86_64 */
|
|
|
|
|
|
|
|
|
|
#if defined (__i960__) && W_TYPE_SIZE == 32
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
({union {UDItype __ll; \
|
|
|
|
|
struct {USItype __l, __h;} __i; \
|
|
|
|
|
} __xx; \
|
|
|
|
|
__asm__ ("emul %2,%1,%0" \
|
|
|
|
|
: "=d" (__xx.__ll) \
|
|
|
|
|
: "%dI" ((USItype) (u)), \
|
|
|
|
|
"dI" ((USItype) (v))); \
|
|
|
|
|
(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
|
|
|
|
|
#define __umulsidi3(u, v) \
|
|
|
|
|
({UDItype __w; \
|
|
|
|
|
__asm__ ("emul %2,%1,%0" \
|
|
|
|
|
: "=d" (__w) \
|
|
|
|
|
: "%dI" ((USItype) (u)), \
|
|
|
|
|
"dI" ((USItype) (v))); \
|
|
|
|
|
__w; })
|
|
|
|
|
#endif /* __i960__ */
|
|
|
|
|
|
|
|
|
|
#if defined (__ia64) && W_TYPE_SIZE == 64
|
|
|
|
|
/* This form encourages gcc (pre-release 3.4 at least) to emit predicated
|
|
|
|
|
"sub r=r,r" and "sub r=r,r,1", giving a 2 cycle latency. The generic
|
|
|
|
|
code using "al<bl" arithmetically comes out making an actual 0 or 1 in a
|
|
|
|
|
register, which takes an extra cycle. */
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __x; \
|
|
|
|
|
__x = (al) - (bl); \
|
|
|
|
|
if ((al) < (bl)) \
|
|
|
|
|
(sh) = (ah) - (bh) - 1; \
|
|
|
|
|
else \
|
|
|
|
|
(sh) = (ah) - (bh); \
|
|
|
|
|
(sl) = __x; \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
/* Do both product parts in assembly, since that gives better code with
|
|
|
|
|
all gcc versions. Some callers will just use the upper part, and in
|
|
|
|
|
that situation we waste an instruction, but not any cycles. */
|
|
|
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
|
|
|
__asm__ ("xma.hu %0 = %2, %3, f0\n\txma.l %1 = %2, %3, f0" \
|
|
|
|
|
: "=&f" (ph), "=f" (pl) \
|
|
|
|
|
: "f" (m0), "f" (m1))
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype _x = (x), _y, _a, _c; \
|
|
|
|
|
__asm__ ("mux1 %0 = %1, @rev" : "=r" (_y) : "r" (_x)); \
|
|
|
|
|
__asm__ ("czx1.l %0 = %1" : "=r" (_a) : "r" (-_y | _y)); \
|
|
|
|
|
_c = (_a - 1) << 3; \
|
|
|
|
|
_x >>= _c; \
|
|
|
|
|
if (_x >= 1 << 4) \
|
|
|
|
|
_x >>= 4, _c += 4; \
|
|
|
|
|
if (_x >= 1 << 2) \
|
|
|
|
|
_x >>= 2, _c += 2; \
|
|
|
|
|
_c += _x >> 1; \
|
|
|
|
|
(count) = W_TYPE_SIZE - 1 - _c; \
|
|
|
|
|
} while (0)
|
|
|
|
|
/* similar to what gcc does for __builtin_ffs, but 0 based rather than 1
|
|
|
|
|
based, and we don't need a special case for x==0 here */
|
|
|
|
|
#define count_trailing_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __ctz_x = (x); \
|
|
|
|
|
__asm__ ("popcnt %0 = %1" \
|
|
|
|
|
: "=r" (count) \
|
|
|
|
|
: "r" ((__ctz_x-1) & ~__ctz_x)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 14
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if defined (__M32R__) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
/* The cmp clears the condition bit. */ \
|
|
|
|
|
__asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "0" ((USItype) (ah)), \
|
|
|
|
|
"r" ((USItype) (bh)), \
|
|
|
|
|
"1" ((USItype) (al)), \
|
|
|
|
|
"r" ((USItype) (bl)) \
|
|
|
|
|
: "cbit")
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
/* The cmp clears the condition bit. */ \
|
|
|
|
|
__asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "0" ((USItype) (ah)), \
|
|
|
|
|
"r" ((USItype) (bh)), \
|
|
|
|
|
"1" ((USItype) (al)), \
|
|
|
|
|
"r" ((USItype) (bl)) \
|
|
|
|
|
: "cbit")
|
|
|
|
|
#endif /* __M32R__ */
|
|
|
|
|
|
|
|
|
|
#if defined (__mc68000__) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
|
|
|
|
|
: "=d" ((USItype) (sh)), \
|
|
|
|
|
"=&d" ((USItype) (sl)) \
|
|
|
|
|
: "%0" ((USItype) (ah)), \
|
|
|
|
|
"d" ((USItype) (bh)), \
|
|
|
|
|
"%1" ((USItype) (al)), \
|
|
|
|
|
"g" ((USItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
|
|
|
|
|
: "=d" ((USItype) (sh)), \
|
|
|
|
|
"=&d" ((USItype) (sl)) \
|
|
|
|
|
: "0" ((USItype) (ah)), \
|
|
|
|
|
"d" ((USItype) (bh)), \
|
|
|
|
|
"1" ((USItype) (al)), \
|
|
|
|
|
"g" ((USItype) (bl)))
|
|
|
|
|
|
|
|
|
|
/* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
|
|
|
|
|
#if (defined (__mc68020__) && !defined (__mc68060__))
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ("mulu%.l %3,%1:%0" \
|
|
|
|
|
: "=d" ((USItype) (w0)), \
|
|
|
|
|
"=d" ((USItype) (w1)) \
|
|
|
|
|
: "%0" ((USItype) (u)), \
|
|
|
|
|
"dmi" ((USItype) (v)))
|
|
|
|
|
#define UMUL_TIME 45
|
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
__asm__ ("divu%.l %4,%1:%0" \
|
|
|
|
|
: "=d" ((USItype) (q)), \
|
|
|
|
|
"=d" ((USItype) (r)) \
|
|
|
|
|
: "0" ((USItype) (n0)), \
|
|
|
|
|
"1" ((USItype) (n1)), \
|
|
|
|
|
"dmi" ((USItype) (d)))
|
|
|
|
|
#define UDIV_TIME 90
|
|
|
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
__asm__ ("divs%.l %4,%1:%0" \
|
|
|
|
|
: "=d" ((USItype) (q)), \
|
|
|
|
|
"=d" ((USItype) (r)) \
|
|
|
|
|
: "0" ((USItype) (n0)), \
|
|
|
|
|
"1" ((USItype) (n1)), \
|
|
|
|
|
"dmi" ((USItype) (d)))
|
|
|
|
|
|
|
|
|
|
#elif defined (__mcoldfire__) /* not mc68020 */
|
|
|
|
|
|
|
|
|
|
#define umul_ppmm(xh, xl, a, b) \
|
|
|
|
|
__asm__ ("| Inlined umul_ppmm\n" \
|
|
|
|
|
" move%.l %2,%/d0\n" \
|
|
|
|
|
" move%.l %3,%/d1\n" \
|
|
|
|
|
" move%.l %/d0,%/d2\n" \
|
|
|
|
|
" swap %/d0\n" \
|
|
|
|
|
" move%.l %/d1,%/d3\n" \
|
|
|
|
|
" swap %/d1\n" \
|
|
|
|
|
" move%.w %/d2,%/d4\n" \
|
|
|
|
|
" mulu %/d3,%/d4\n" \
|
|
|
|
|
" mulu %/d1,%/d2\n" \
|
|
|
|
|
" mulu %/d0,%/d3\n" \
|
|
|
|
|
" mulu %/d0,%/d1\n" \
|
|
|
|
|
" move%.l %/d4,%/d0\n" \
|
|
|
|
|
" clr%.w %/d0\n" \
|
|
|
|
|
" swap %/d0\n" \
|
|
|
|
|
" add%.l %/d0,%/d2\n" \
|
|
|
|
|
" add%.l %/d3,%/d2\n" \
|
|
|
|
|
" jcc 1f\n" \
|
|
|
|
|
" add%.l %#65536,%/d1\n" \
|
|
|
|
|
"1: swap %/d2\n" \
|
|
|
|
|
" moveq %#0,%/d0\n" \
|
|
|
|
|
" move%.w %/d2,%/d0\n" \
|
|
|
|
|
" move%.w %/d4,%/d2\n" \
|
|
|
|
|
" move%.l %/d2,%1\n" \
|
|
|
|
|
" add%.l %/d1,%/d0\n" \
|
|
|
|
|
" move%.l %/d0,%0" \
|
|
|
|
|
: "=g" ((USItype) (xh)), \
|
|
|
|
|
"=g" ((USItype) (xl)) \
|
|
|
|
|
: "g" ((USItype) (a)), \
|
|
|
|
|
"g" ((USItype) (b)) \
|
|
|
|
|
: "d0", "d1", "d2", "d3", "d4")
|
|
|
|
|
#define UMUL_TIME 100
|
|
|
|
|
#define UDIV_TIME 400
|
|
|
|
|
#else /* not ColdFire */
|
|
|
|
|
/* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
|
|
|
|
|
#define umul_ppmm(xh, xl, a, b) \
|
|
|
|
|
__asm__ ("| Inlined umul_ppmm\n" \
|
|
|
|
|
" move%.l %2,%/d0\n" \
|
|
|
|
|
" move%.l %3,%/d1\n" \
|
|
|
|
|
" move%.l %/d0,%/d2\n" \
|
|
|
|
|
" swap %/d0\n" \
|
|
|
|
|
" move%.l %/d1,%/d3\n" \
|
|
|
|
|
" swap %/d1\n" \
|
|
|
|
|
" move%.w %/d2,%/d4\n" \
|
|
|
|
|
" mulu %/d3,%/d4\n" \
|
|
|
|
|
" mulu %/d1,%/d2\n" \
|
|
|
|
|
" mulu %/d0,%/d3\n" \
|
|
|
|
|
" mulu %/d0,%/d1\n" \
|
|
|
|
|
" move%.l %/d4,%/d0\n" \
|
|
|
|
|
" eor%.w %/d0,%/d0\n" \
|
|
|
|
|
" swap %/d0\n" \
|
|
|
|
|
" add%.l %/d0,%/d2\n" \
|
|
|
|
|
" add%.l %/d3,%/d2\n" \
|
|
|
|
|
" jcc 1f\n" \
|
|
|
|
|
" add%.l %#65536,%/d1\n" \
|
|
|
|
|
"1: swap %/d2\n" \
|
|
|
|
|
" moveq %#0,%/d0\n" \
|
|
|
|
|
" move%.w %/d2,%/d0\n" \
|
|
|
|
|
" move%.w %/d4,%/d2\n" \
|
|
|
|
|
" move%.l %/d2,%1\n" \
|
|
|
|
|
" add%.l %/d1,%/d0\n" \
|
|
|
|
|
" move%.l %/d0,%0" \
|
|
|
|
|
: "=g" ((USItype) (xh)), \
|
|
|
|
|
"=g" ((USItype) (xl)) \
|
|
|
|
|
: "g" ((USItype) (a)), \
|
|
|
|
|
"g" ((USItype) (b)) \
|
|
|
|
|
: "d0", "d1", "d2", "d3", "d4")
|
|
|
|
|
#define UMUL_TIME 100
|
|
|
|
|
#define UDIV_TIME 400
|
|
|
|
|
|
|
|
|
|
#endif /* not mc68020 */
|
|
|
|
|
|
|
|
|
|
/* The '020, '030, '040 and '060 have bitfield insns.
|
|
|
|
|
cpu32 disguises as a 68020, but lacks them. */
|
|
|
|
|
#if defined (__mc68020__) && !defined (__mcpu32__)
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
__asm__ ("bfffo %1{%b2:%b2},%0" \
|
|
|
|
|
: "=d" ((USItype) (count)) \
|
|
|
|
|
: "od" ((USItype) (x)), "n" (0))
|
|
|
|
|
/* Some ColdFire architectures have a ff1 instruction supported via
|
|
|
|
|
__builtin_clz. */
|
|
|
|
|
#elif defined (__mcfisaaplus__) || defined (__mcfisac__)
|
|
|
|
|
#define count_leading_zeros(count,x) ((count) = __builtin_clz (x))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
|
|
|
#endif
|
|
|
|
|
#endif /* mc68000 */
|
|
|
|
|
|
|
|
|
|
#if defined (__m88000__) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "%rJ" ((USItype) (ah)), \
|
|
|
|
|
"rJ" ((USItype) (bh)), \
|
|
|
|
|
"%rJ" ((USItype) (al)), \
|
|
|
|
|
"rJ" ((USItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "rJ" ((USItype) (ah)), \
|
|
|
|
|
"rJ" ((USItype) (bh)), \
|
|
|
|
|
"rJ" ((USItype) (al)), \
|
|
|
|
|
"rJ" ((USItype) (bl)))
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
USItype __cbtmp; \
|
|
|
|
|
__asm__ ("ff1 %0,%1" \
|
|
|
|
|
: "=r" (__cbtmp) \
|
|
|
|
|
: "r" ((USItype) (x))); \
|
|
|
|
|
(count) = __cbtmp ^ 31; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 63 /* sic */
|
|
|
|
|
#if defined (__mc88110__)
|
|
|
|
|
#define umul_ppmm(wh, wl, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
union {UDItype __ll; \
|
|
|
|
|
struct {USItype __h, __l;} __i; \
|
|
|
|
|
} __xx; \
|
|
|
|
|
__asm__ ("mulu.d %0,%1,%2" \
|
|
|
|
|
: "=r" (__xx.__ll) \
|
|
|
|
|
: "r" ((USItype) (u)), \
|
|
|
|
|
"r" ((USItype) (v))); \
|
|
|
|
|
(wh) = __xx.__i.__h; \
|
|
|
|
|
(wl) = __xx.__i.__l; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
({union {UDItype __ll; \
|
|
|
|
|
struct {USItype __h, __l;} __i; \
|
|
|
|
|
} __xx; \
|
|
|
|
|
USItype __q; \
|
|
|
|
|
__xx.__i.__h = (n1); __xx.__i.__l = (n0); \
|
|
|
|
|
__asm__ ("divu.d %0,%1,%2" \
|
|
|
|
|
: "=r" (__q) \
|
|
|
|
|
: "r" (__xx.__ll), \
|
|
|
|
|
"r" ((USItype) (d))); \
|
|
|
|
|
(r) = (n0) - __q * (d); (q) = __q; })
|
|
|
|
|
#define UMUL_TIME 5
|
|
|
|
|
#define UDIV_TIME 25
|
|
|
|
|
#else
|
|
|
|
|
#define UMUL_TIME 17
|
|
|
|
|
#define UDIV_TIME 150
|
|
|
|
|
#endif /* __mc88110__ */
|
|
|
|
|
#endif /* __m88000__ */
|
|
|
|
|
|
|
|
|
|
#if defined (__mn10300__)
|
|
|
|
|
# if defined (__AM33__)
|
|
|
|
|
# define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
|
|
|
|
|
# define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
asm("mulu %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
|
|
|
|
|
# define smul_ppmm(w1, w0, u, v) \
|
|
|
|
|
asm("mul %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
|
|
|
|
|
# else
|
|
|
|
|
# define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
asm("nop; nop; mulu %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
|
|
|
|
|
# define smul_ppmm(w1, w0, u, v) \
|
|
|
|
|
asm("nop; nop; mul %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
|
|
|
|
|
# endif
|
|
|
|
|
# define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
DWunion __s, __a, __b; \
|
|
|
|
|
__a.s.low = (al); __a.s.high = (ah); \
|
|
|
|
|
__b.s.low = (bl); __b.s.high = (bh); \
|
|
|
|
|
__s.ll = __a.ll + __b.ll; \
|
|
|
|
|
(sl) = __s.s.low; (sh) = __s.s.high; \
|
|
|
|
|
} while (0)
|
|
|
|
|
# define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
DWunion __s, __a, __b; \
|
|
|
|
|
__a.s.low = (al); __a.s.high = (ah); \
|
|
|
|
|
__b.s.low = (bl); __b.s.high = (bh); \
|
|
|
|
|
__s.ll = __a.ll - __b.ll; \
|
|
|
|
|
(sl) = __s.s.low; (sh) = __s.s.high; \
|
|
|
|
|
} while (0)
|
|
|
|
|
# define udiv_qrnnd(q, r, nh, nl, d) \
|
|
|
|
|
asm("divu %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
|
|
|
|
|
# define sdiv_qrnnd(q, r, nh, nl, d) \
|
|
|
|
|
asm("div %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
|
|
|
|
|
# define UMUL_TIME 3
|
|
|
|
|
# define UDIV_TIME 38
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if defined (__mips__) && W_TYPE_SIZE == 32
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
|
|
|
|
|
(w1) = (USItype) (__x >> 32); \
|
|
|
|
|
(w0) = (USItype) (__x); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 10
|
|
|
|
|
#define UDIV_TIME 100
|
|
|
|
|
|
2014-05-02 00:09:33 +08:00
|
|
|
#if (__mips == 32 || __mips == 64) && ! defined (__mips16)
|
2013-12-04 18:49:14 +08:00
|
|
|
#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
|
|
|
#endif
|
|
|
|
|
#endif /* __mips__ */
|
|
|
|
|
|
|
|
|
|
/* FIXME: We should test _IBMR2 here when we add assembly support for the
|
|
|
|
|
system vendor compilers.
|
|
|
|
|
FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
|
|
|
|
|
enough, since that hits ARM and m68k too. */
|
|
|
|
|
#if (defined (_ARCH_PPC) /* AIX */ \
|
|
|
|
|
|| defined (__powerpc__) /* gcc */ \
|
|
|
|
|
|| defined (__POWERPC__) /* BEOS */ \
|
|
|
|
|
|| defined (__ppc__) /* Darwin */ \
|
|
|
|
|
|| (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
|
|
|
|
|
|| (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
|
|
|
|
|
&& CPU_FAMILY == PPC) \
|
|
|
|
|
) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
if (__builtin_constant_p (bh) && (bh) == 0) \
|
|
|
|
|
__asm__ ("add%I4c %1,%3,%4\n\taddze %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
|
|
|
|
|
__asm__ ("add%I4c %1,%3,%4\n\taddme %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
|
|
|
|
|
else \
|
|
|
|
|
__asm__ ("add%I5c %1,%4,%5\n\tadde %0,%2,%3" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) \
|
|
|
|
|
: "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
if (__builtin_constant_p (ah) && (ah) == 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\tsubfme %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (bh) && (bh) == 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\taddme %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\taddze %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
|
|
|
|
|
else \
|
|
|
|
|
__asm__ ("subf%I4c %1,%5,%4\n\tsubfe %0,%3,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) \
|
|
|
|
|
: "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
__asm__ ("cntlzw %0,%1" : "=r" (count) : "r" (x))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 32
|
|
|
|
|
#if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
|
|
|
|
|
|| defined (__ppc__) \
|
|
|
|
|
|| (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
|
|
|
|
|
|| (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
|
|
|
|
|
&& CPU_FAMILY == PPC)
|
|
|
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
USItype __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
|
|
|
|
|
(pl) = __m0 * __m1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 15
|
|
|
|
|
#define smul_ppmm(ph, pl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
SItype __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
|
|
|
|
|
(pl) = __m0 * __m1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define SMUL_TIME 14
|
|
|
|
|
#define UDIV_TIME 120
|
|
|
|
|
#endif
|
|
|
|
|
#endif /* 32-bit POWER architecture variants. */
|
|
|
|
|
|
|
|
|
|
/* We should test _IBMR2 here when we add assembly support for the system
|
|
|
|
|
vendor compilers. */
|
|
|
|
|
#if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
if (__builtin_constant_p (bh) && (bh) == 0) \
|
|
|
|
|
__asm__ ("add%I4c %1,%3,%4\n\taddze %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
|
|
|
|
|
__asm__ ("add%I4c %1,%3,%4\n\taddme %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
|
|
|
|
|
else \
|
|
|
|
|
__asm__ ("add%I5c %1,%4,%5\n\tadde %0,%2,%3" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) \
|
|
|
|
|
: "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
if (__builtin_constant_p (ah) && (ah) == 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\tsubfme %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (bh) && (bh) == 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\taddme %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
|
|
|
|
|
else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
|
|
|
|
|
__asm__ ("subf%I3c %1,%4,%3\n\taddze %0,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
|
|
|
|
|
else \
|
|
|
|
|
__asm__ ("subf%I4c %1,%5,%4\n\tsubfe %0,%3,%2" \
|
|
|
|
|
: "=r" (sh), "=&r" (sl) \
|
|
|
|
|
: "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
__asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 64
|
|
|
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
|
|
|
|
|
(pl) = __m0 * __m1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 15
|
|
|
|
|
#define smul_ppmm(ph, pl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
DItype __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
|
|
|
|
|
(pl) = __m0 * __m1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define SMUL_TIME 14 /* ??? */
|
|
|
|
|
#define UDIV_TIME 120 /* ??? */
|
|
|
|
|
#endif /* 64-bit PowerPC. */
|
|
|
|
|
|
|
|
|
|
#if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("a %1,%5\n\tae %0,%3" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "%0" ((USItype) (ah)), \
|
|
|
|
|
"r" ((USItype) (bh)), \
|
|
|
|
|
"%1" ((USItype) (al)), \
|
|
|
|
|
"r" ((USItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("s %1,%5\n\tse %0,%3" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "0" ((USItype) (ah)), \
|
|
|
|
|
"r" ((USItype) (bh)), \
|
|
|
|
|
"1" ((USItype) (al)), \
|
|
|
|
|
"r" ((USItype) (bl)))
|
|
|
|
|
#define umul_ppmm(ph, pl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
USItype __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ( \
|
|
|
|
|
"s r2,r2\n" \
|
|
|
|
|
" mts r10,%2\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" m r2,%3\n" \
|
|
|
|
|
" cas %0,r2,r0\n" \
|
|
|
|
|
" mfs r10,%1" \
|
|
|
|
|
: "=r" ((USItype) (ph)), \
|
|
|
|
|
"=r" ((USItype) (pl)) \
|
|
|
|
|
: "%r" (__m0), \
|
|
|
|
|
"r" (__m1) \
|
|
|
|
|
: "r2"); \
|
|
|
|
|
(ph) += ((((SItype) __m0 >> 31) & __m1) \
|
|
|
|
|
+ (((SItype) __m1 >> 31) & __m0)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 20
|
|
|
|
|
#define UDIV_TIME 200
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
if ((x) >= 0x10000) \
|
|
|
|
|
__asm__ ("clz %0,%1" \
|
|
|
|
|
: "=r" ((USItype) (count)) \
|
|
|
|
|
: "r" ((USItype) (x) >> 16)); \
|
|
|
|
|
else \
|
|
|
|
|
{ \
|
|
|
|
|
__asm__ ("clz %0,%1" \
|
|
|
|
|
: "=r" ((USItype) (count)) \
|
|
|
|
|
: "r" ((USItype) (x))); \
|
|
|
|
|
(count) += 16; \
|
|
|
|
|
} \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
2018-06-18 23:31:15 +08:00
|
|
|
#if defined(__riscv)
|
|
|
|
|
#ifdef __riscv_mul
|
|
|
|
|
#define __umulsidi3(u,v) ((UDWtype)(UWtype)(u) * (UWtype)(v))
|
|
|
|
|
#define __muluw3(a, b) ((UWtype)(a) * (UWtype)(b))
|
|
|
|
|
#else
|
|
|
|
|
#if __riscv_xlen == 32
|
|
|
|
|
#define MULUW3 "call __mulsi3"
|
|
|
|
|
#elif __riscv_xlen == 64
|
|
|
|
|
#define MULUW3 "call __muldi3"
|
|
|
|
|
#else
|
|
|
|
|
#error unsupport xlen
|
|
|
|
|
#endif /* __riscv_xlen */
|
|
|
|
|
/* We rely on the fact that MULUW3 doesn't clobber the t-registers.
|
|
|
|
|
It can get better register allocation result. */
|
|
|
|
|
#define __muluw3(a, b) \
|
|
|
|
|
({ \
|
|
|
|
|
register UWtype __op0 asm ("a0") = a; \
|
|
|
|
|
register UWtype __op1 asm ("a1") = b; \
|
|
|
|
|
asm volatile (MULUW3 \
|
|
|
|
|
: "+r" (__op0), "+r" (__op1) \
|
|
|
|
|
: \
|
|
|
|
|
: "ra", "a2", "a3"); \
|
|
|
|
|
__op0; \
|
|
|
|
|
})
|
|
|
|
|
#endif /* __riscv_mul */
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __x0, __x1, __x2, __x3; \
|
|
|
|
|
UHWtype __ul, __vl, __uh, __vh; \
|
|
|
|
|
\
|
|
|
|
|
__ul = __ll_lowpart (u); \
|
|
|
|
|
__uh = __ll_highpart (u); \
|
|
|
|
|
__vl = __ll_lowpart (v); \
|
|
|
|
|
__vh = __ll_highpart (v); \
|
|
|
|
|
\
|
|
|
|
|
__x0 = __muluw3 (__ul, __vl); \
|
|
|
|
|
__x1 = __muluw3 (__ul, __vh); \
|
|
|
|
|
__x2 = __muluw3 (__uh, __vl); \
|
|
|
|
|
__x3 = __muluw3 (__uh, __vh); \
|
|
|
|
|
\
|
|
|
|
|
__x1 += __ll_highpart (__x0);/* this can't give carry */ \
|
|
|
|
|
__x1 += __x2; /* but this indeed can */ \
|
|
|
|
|
if (__x1 < __x2) /* did we get it? */ \
|
|
|
|
|
__x3 += __ll_B; /* yes, add it in the proper pos. */ \
|
|
|
|
|
\
|
|
|
|
|
(w1) = __x3 + __ll_highpart (__x1); \
|
|
|
|
|
(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif /* __riscv */
|
|
|
|
|
|
2017-09-16 00:40:33 +08:00
|
|
|
#if defined(__sh__) && W_TYPE_SIZE == 32
|
2013-12-04 18:49:14 +08:00
|
|
|
#ifndef __sh1__
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ( \
|
|
|
|
|
"dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \
|
|
|
|
|
: "=r<" ((USItype)(w1)), \
|
|
|
|
|
"=r<" ((USItype)(w0)) \
|
|
|
|
|
: "r" ((USItype)(u)), \
|
|
|
|
|
"r" ((USItype)(v)) \
|
|
|
|
|
: "macl", "mach")
|
|
|
|
|
#define UMUL_TIME 5
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* This is the same algorithm as __udiv_qrnnd_c. */
|
|
|
|
|
#define UDIV_NEEDS_NORMALIZATION 1
|
|
|
|
|
|
SH FDPIC backend support
gcc/ChangeLog
* config.gcc: Handle --enable-fdpic.
* config/sh/constraints.md (Ccl): New constraint.
* config/sh/linux.h (SUBTARGET_LINK_EMUL_SUFFIX): Handle -mfdpic.
* config/sh/sh-c.c (sh_cpu_cpp_builtins): Add __FDPIC__ and
__SH_FDPIC__.
* config/sh/sh-mem.cc (expand_block_move): Support FDPIC for calls
to library functions.
* config/sh/sh-protos.h (function_symbol_result): New struct.
(function_symbol): Return function_symbol_result.
(sh_get_fdpic_reg_initial_val, sh_load_function_descriptor): New
declarations.
* config/sh/sh.c (TARGET_ASM_INTEGER, sh_assemble_integer):
Implement target hook.
(TARGET_CANNOT_FORCE_CONST_MEM, sh_cannot_force_const_mem_p):
Likewise.
(sh_option_override): Force -fPIC if FDPIC is in effect.
(sh_asm_output_addr_const_extra): Add UNSPEC_GOTFUNCDESC and
UNSPEC_GOTOFFFUNCDESC cases.
(prepare_move_operands): Use FDPIC initial GOT register for
TLS-related GOT access; inhibit cross-section address offset
constants for FDPIC.
(sh_assemble_integer): New function.
(sh_cannot_copy_insn_p): Inhibit copying insns that are FDPIC
PC-relative call sites.
(expand_ashiftrt): Adapt invocation of function_symbol.
(sh_expand_prologue): Inhibit PC-relative GOT address load for
FDPIC.
(nonpic_symbol_mentioned_p): Add cases for UNSPEC_GOTFUNCDESC and
UNSPEC_GOTOFFFUNCDESC.
(legitimize_pic_address): Resolve function symbols to function
descriptors for FDPIC. Do not use GOT-relative addressing for
local data that may be read-only on FDPIC.
(sh_emit_storesi, sh_emit_storehi): New functions.
(sh_trampoline_init): Generate FDPIC trampolines.
(sh_function_ok_for_sibcall): Add TARGET_FDPIC check.
(sh_expand_sym_label2reg): Don't assume sibcalls are local.
(sh_output_mi_thunk): Generate FDPIC call.
(function_symbol): Return function_symbol_result. For
SFUNC_STATIC on FDPIC, generate call site labels to use
PC-relative addressing rather than GOT-relative addressing.
(sh_conditional_register_usage): Make PIC register fixed and call used
when FDPIC is in effect.
(sh_legitimate_constant_p): Impose FDPIC
constant constraints.
(sh_cannot_force_const_mem_p, sh_load_function_descriptor)
(sh_get_fdpic_reg_initial_val): New functions.
* config/sh/sh.h (SUBTARGET_ASM_SPEC, SUBTARGET_LINK_EMUL_SUFFIX):
Handle -mfdpic.
(FDPIC_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS)
(PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
(SH_OFFSETS_MUST_BE_WITHIN_SECTIONS_P): New macros.
(DRIVER_SELF_SPECS): Add SUBTARGET_DRIVER_SELF_SPECS and
FDPIC_SELF_SPECS.
(TRAMPOLINE_SIZE): Select trampoline size for FDPIC.
(ASM_PREFERRED_EH_DATA_FORMAT): Add EH format constraints for
FDPIC.
(ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Handle FDPIC case.
* config/sh/sh.md (UNSPEC_GOTFUNCDESC, UNSPEC_GOTOFFFUNCDESC): New
constants.
(calli_fdpic, call_valuei_fdpic, sibcalli_fdpic)
(sibcalli_pcrel_fdpic, sibcall_pcrel_fdpic, sibcall_valuei_fdpic)
(sibcall_valuei_pcrel_fdpic, sibcall_value_pcrel_fdpic)
(sym2GOTFUNCDESC, symGOTFUNCDESC2reg, sym2GOTOFFFUNCDESC)
(symGOTOFFFUNCDESC2reg): New patterns.
(udivsi3_i1, udivsi3_i4, udivsi3_i4_single, udivsi3,
*divsi_inv_call_combine, divsi3_i4, divsi3_i4_single, divsi3)
(ashlsi3, ashlsi3_d_call, ashrsi3_n, lshrsi3, lshrsi3_d_call)
(calli, call_valuei, call, call_value, sibcalli, sibcalli_pcrel)
(sibcall_pcrel, sibcall, sibcall_valuei, sibcall_valuei_pcrel)
(sibcall_value_pcrel, sibcall_value, GOTaddr2picreg, symGOT_load)
(symGOTOFF2reg, block_move_real, block_lump_real)
(block_move_real_i4, block_lump_real_i4): Add support for FDPIC
calls.
(mulsi3, ic_invalidate_line, initialize_trampoline, call_pop,
call_value_pop): Adjust for new function_symbol signature.
* config/sh/sh.opt (-mfdpic): New option.
* doc/install.texi (Options specification): Document
--enable-fdpic.
* doc/invoke.texi (SH Options): Document -mfdpic.
include/ChangeLog:
* longlong.h (udiv_qrnnd): Add FDPIC compatible version for SH.
libitm/ChangeLog:
* config/sh/sjlj.S (_ITM_beginTransaction): Bypass PLT calling
GTM_begin_transaction for compatibility with FDPIC.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229438 138bc75d-0d04-0410-961f-82ee72b054a4
2015-11-29 00:39:31 +08:00
|
|
|
#ifdef __FDPIC__
|
|
|
|
|
/* FDPIC needs a special version of the asm fragment to extract the
|
|
|
|
|
code address from the function descriptor. __udiv_qrnnd_16 is
|
|
|
|
|
assumed to be local and not to use the GOT, so loading r12 is
|
|
|
|
|
not needed. */
|
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
do { \
|
|
|
|
|
extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
|
|
|
|
|
__attribute__ ((visibility ("hidden"))); \
|
|
|
|
|
/* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
|
|
|
|
|
__asm__ ( \
|
|
|
|
|
"mov%M4 %4,r5\n" \
|
|
|
|
|
" swap.w %3,r4\n" \
|
|
|
|
|
" swap.w r5,r6\n" \
|
|
|
|
|
" mov.l @%5,r2\n" \
|
|
|
|
|
" jsr @r2\n" \
|
|
|
|
|
" shll16 r6\n" \
|
|
|
|
|
" swap.w r4,r4\n" \
|
|
|
|
|
" mov.l @%5,r2\n" \
|
|
|
|
|
" jsr @r2\n" \
|
|
|
|
|
" swap.w r1,%0\n" \
|
|
|
|
|
" or r1,%0" \
|
|
|
|
|
: "=r" (q), "=&z" (r) \
|
|
|
|
|
: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
|
|
|
|
|
: "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#else
|
2013-12-04 18:49:14 +08:00
|
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
do { \
|
|
|
|
|
extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
|
|
|
|
|
__attribute__ ((visibility ("hidden"))); \
|
|
|
|
|
/* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
|
|
|
|
|
__asm__ ( \
|
|
|
|
|
"mov%M4 %4,r5\n" \
|
|
|
|
|
" swap.w %3,r4\n" \
|
|
|
|
|
" swap.w r5,r6\n" \
|
|
|
|
|
" jsr @%5\n" \
|
|
|
|
|
" shll16 r6\n" \
|
|
|
|
|
" swap.w r4,r4\n" \
|
|
|
|
|
" jsr @%5\n" \
|
|
|
|
|
" swap.w r1,%0\n" \
|
|
|
|
|
" or r1,%0" \
|
|
|
|
|
: "=r" (q), "=&z" (r) \
|
|
|
|
|
: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
|
|
|
|
|
: "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
|
|
|
|
|
} while (0)
|
SH FDPIC backend support
gcc/ChangeLog
* config.gcc: Handle --enable-fdpic.
* config/sh/constraints.md (Ccl): New constraint.
* config/sh/linux.h (SUBTARGET_LINK_EMUL_SUFFIX): Handle -mfdpic.
* config/sh/sh-c.c (sh_cpu_cpp_builtins): Add __FDPIC__ and
__SH_FDPIC__.
* config/sh/sh-mem.cc (expand_block_move): Support FDPIC for calls
to library functions.
* config/sh/sh-protos.h (function_symbol_result): New struct.
(function_symbol): Return function_symbol_result.
(sh_get_fdpic_reg_initial_val, sh_load_function_descriptor): New
declarations.
* config/sh/sh.c (TARGET_ASM_INTEGER, sh_assemble_integer):
Implement target hook.
(TARGET_CANNOT_FORCE_CONST_MEM, sh_cannot_force_const_mem_p):
Likewise.
(sh_option_override): Force -fPIC if FDPIC is in effect.
(sh_asm_output_addr_const_extra): Add UNSPEC_GOTFUNCDESC and
UNSPEC_GOTOFFFUNCDESC cases.
(prepare_move_operands): Use FDPIC initial GOT register for
TLS-related GOT access; inhibit cross-section address offset
constants for FDPIC.
(sh_assemble_integer): New function.
(sh_cannot_copy_insn_p): Inhibit copying insns that are FDPIC
PC-relative call sites.
(expand_ashiftrt): Adapt invocation of function_symbol.
(sh_expand_prologue): Inhibit PC-relative GOT address load for
FDPIC.
(nonpic_symbol_mentioned_p): Add cases for UNSPEC_GOTFUNCDESC and
UNSPEC_GOTOFFFUNCDESC.
(legitimize_pic_address): Resolve function symbols to function
descriptors for FDPIC. Do not use GOT-relative addressing for
local data that may be read-only on FDPIC.
(sh_emit_storesi, sh_emit_storehi): New functions.
(sh_trampoline_init): Generate FDPIC trampolines.
(sh_function_ok_for_sibcall): Add TARGET_FDPIC check.
(sh_expand_sym_label2reg): Don't assume sibcalls are local.
(sh_output_mi_thunk): Generate FDPIC call.
(function_symbol): Return function_symbol_result. For
SFUNC_STATIC on FDPIC, generate call site labels to use
PC-relative addressing rather than GOT-relative addressing.
(sh_conditional_register_usage): Make PIC register fixed and call used
when FDPIC is in effect.
(sh_legitimate_constant_p): Impose FDPIC
constant constraints.
(sh_cannot_force_const_mem_p, sh_load_function_descriptor)
(sh_get_fdpic_reg_initial_val): New functions.
* config/sh/sh.h (SUBTARGET_ASM_SPEC, SUBTARGET_LINK_EMUL_SUFFIX):
Handle -mfdpic.
(FDPIC_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS)
(PIC_OFFSET_TABLE_REG_CALL_CLOBBERED)
(SH_OFFSETS_MUST_BE_WITHIN_SECTIONS_P): New macros.
(DRIVER_SELF_SPECS): Add SUBTARGET_DRIVER_SELF_SPECS and
FDPIC_SELF_SPECS.
(TRAMPOLINE_SIZE): Select trampoline size for FDPIC.
(ASM_PREFERRED_EH_DATA_FORMAT): Add EH format constraints for
FDPIC.
(ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Handle FDPIC case.
* config/sh/sh.md (UNSPEC_GOTFUNCDESC, UNSPEC_GOTOFFFUNCDESC): New
constants.
(calli_fdpic, call_valuei_fdpic, sibcalli_fdpic)
(sibcalli_pcrel_fdpic, sibcall_pcrel_fdpic, sibcall_valuei_fdpic)
(sibcall_valuei_pcrel_fdpic, sibcall_value_pcrel_fdpic)
(sym2GOTFUNCDESC, symGOTFUNCDESC2reg, sym2GOTOFFFUNCDESC)
(symGOTOFFFUNCDESC2reg): New patterns.
(udivsi3_i1, udivsi3_i4, udivsi3_i4_single, udivsi3,
*divsi_inv_call_combine, divsi3_i4, divsi3_i4_single, divsi3)
(ashlsi3, ashlsi3_d_call, ashrsi3_n, lshrsi3, lshrsi3_d_call)
(calli, call_valuei, call, call_value, sibcalli, sibcalli_pcrel)
(sibcall_pcrel, sibcall, sibcall_valuei, sibcall_valuei_pcrel)
(sibcall_value_pcrel, sibcall_value, GOTaddr2picreg, symGOT_load)
(symGOTOFF2reg, block_move_real, block_lump_real)
(block_move_real_i4, block_lump_real_i4): Add support for FDPIC
calls.
(mulsi3, ic_invalidate_line, initialize_trampoline, call_pop,
call_value_pop): Adjust for new function_symbol signature.
* config/sh/sh.opt (-mfdpic): New option.
* doc/install.texi (Options specification): Document
--enable-fdpic.
* doc/invoke.texi (SH Options): Document -mfdpic.
include/ChangeLog:
* longlong.h (udiv_qrnnd): Add FDPIC compatible version for SH.
libitm/ChangeLog:
* config/sh/sjlj.S (_ITM_beginTransaction): Bypass PLT calling
GTM_begin_transaction for compatibility with FDPIC.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229438 138bc75d-0d04-0410-961f-82ee72b054a4
2015-11-29 00:39:31 +08:00
|
|
|
#endif /* __FDPIC__ */
|
2013-12-04 18:49:14 +08:00
|
|
|
|
|
|
|
|
#define UDIV_TIME 80
|
|
|
|
|
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("clrt;subc %5,%1; subc %4,%0" \
|
|
|
|
|
: "=r" (sh), "=r" (sl) \
|
|
|
|
|
: "0" (ah), "1" (al), "r" (bh), "r" (bl) : "t")
|
|
|
|
|
|
|
|
|
|
#endif /* __sh__ */
|
|
|
|
|
|
|
|
|
|
#if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
|
|
|
|
|
&& W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "%rJ" ((USItype) (ah)), \
|
|
|
|
|
"rI" ((USItype) (bh)), \
|
|
|
|
|
"%rJ" ((USItype) (al)), \
|
|
|
|
|
"rI" ((USItype) (bl)) \
|
|
|
|
|
__CLOBBER_CC)
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
|
|
|
|
|
: "=r" ((USItype) (sh)), \
|
|
|
|
|
"=&r" ((USItype) (sl)) \
|
|
|
|
|
: "rJ" ((USItype) (ah)), \
|
|
|
|
|
"rI" ((USItype) (bh)), \
|
|
|
|
|
"rJ" ((USItype) (al)), \
|
|
|
|
|
"rI" ((USItype) (bl)) \
|
|
|
|
|
__CLOBBER_CC)
|
|
|
|
|
#if defined (__sparc_v9__)
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
register USItype __g1 asm ("g1"); \
|
|
|
|
|
__asm__ ("umul\t%2,%3,%1\n\t" \
|
|
|
|
|
"srlx\t%1, 32, %0" \
|
|
|
|
|
: "=r" ((USItype) (w1)), \
|
|
|
|
|
"=r" (__g1) \
|
|
|
|
|
: "r" ((USItype) (u)), \
|
|
|
|
|
"r" ((USItype) (v))); \
|
|
|
|
|
(w0) = __g1; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
|
|
|
|
|
__asm__ ("mov\t%2,%%y\n\t" \
|
|
|
|
|
"udiv\t%3,%4,%0\n\t" \
|
|
|
|
|
"umul\t%0,%4,%1\n\t" \
|
|
|
|
|
"sub\t%3,%1,%1" \
|
|
|
|
|
: "=&r" ((USItype) (__q)), \
|
|
|
|
|
"=&r" ((USItype) (__r)) \
|
|
|
|
|
: "r" ((USItype) (__n1)), \
|
|
|
|
|
"r" ((USItype) (__n0)), \
|
|
|
|
|
"r" ((USItype) (__d)))
|
|
|
|
|
#else
|
|
|
|
|
#if defined (__sparc_v8__)
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ("umul %2,%3,%1;rd %%y,%0" \
|
|
|
|
|
: "=r" ((USItype) (w1)), \
|
|
|
|
|
"=r" ((USItype) (w0)) \
|
|
|
|
|
: "r" ((USItype) (u)), \
|
|
|
|
|
"r" ((USItype) (v)))
|
|
|
|
|
#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
|
|
|
|
|
__asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
|
|
|
|
|
: "=&r" ((USItype) (__q)), \
|
|
|
|
|
"=&r" ((USItype) (__r)) \
|
|
|
|
|
: "r" ((USItype) (__n1)), \
|
|
|
|
|
"r" ((USItype) (__n0)), \
|
|
|
|
|
"r" ((USItype) (__d)))
|
|
|
|
|
#else
|
|
|
|
|
#if defined (__sparclite__)
|
|
|
|
|
/* This has hardware multiply but not divide. It also has two additional
|
|
|
|
|
instructions scan (ffs from high bit) and divscc. */
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ("umul %2,%3,%1;rd %%y,%0" \
|
|
|
|
|
: "=r" ((USItype) (w1)), \
|
|
|
|
|
"=r" ((USItype) (w0)) \
|
|
|
|
|
: "r" ((USItype) (u)), \
|
|
|
|
|
"r" ((USItype) (v)))
|
|
|
|
|
#define udiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
__asm__ ("! Inlined udiv_qrnnd\n" \
|
|
|
|
|
" wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
|
|
|
|
|
" tst %%g0\n" \
|
|
|
|
|
" divscc %3,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%%g1\n" \
|
|
|
|
|
" divscc %%g1,%4,%0\n" \
|
|
|
|
|
" rd %%y,%1\n" \
|
|
|
|
|
" bl,a 1f\n" \
|
|
|
|
|
" add %1,%4,%1\n" \
|
|
|
|
|
"1: ! End of inline udiv_qrnnd" \
|
|
|
|
|
: "=r" ((USItype) (q)), \
|
|
|
|
|
"=r" ((USItype) (r)) \
|
|
|
|
|
: "r" ((USItype) (n1)), \
|
|
|
|
|
"r" ((USItype) (n0)), \
|
|
|
|
|
"rI" ((USItype) (d)) \
|
|
|
|
|
: "g1" __AND_CLOBBER_CC)
|
|
|
|
|
#define UDIV_TIME 37
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
__asm__ ("scan %1,1,%0" \
|
|
|
|
|
: "=r" ((USItype) (count)) \
|
|
|
|
|
: "r" ((USItype) (x))); \
|
|
|
|
|
} while (0)
|
|
|
|
|
/* Early sparclites return 63 for an argument of 0, but they warn that future
|
|
|
|
|
implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
|
|
|
|
|
undefined. */
|
|
|
|
|
#else
|
|
|
|
|
/* SPARC without integer multiplication and divide instructions.
|
|
|
|
|
(i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
__asm__ ("! Inlined umul_ppmm\n" \
|
|
|
|
|
" wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
|
|
|
|
|
" sra %3,31,%%o5 ! Don't move this insn\n" \
|
|
|
|
|
" and %2,%%o5,%%o5 ! Don't move this insn\n" \
|
|
|
|
|
" andcc %%g0,0,%%g1 ! Don't move this insn\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,%3,%%g1\n" \
|
|
|
|
|
" mulscc %%g1,0,%%g1\n" \
|
|
|
|
|
" add %%g1,%%o5,%0\n" \
|
|
|
|
|
" rd %%y,%1" \
|
|
|
|
|
: "=r" ((USItype) (w1)), \
|
|
|
|
|
"=r" ((USItype) (w0)) \
|
|
|
|
|
: "%rI" ((USItype) (u)), \
|
|
|
|
|
"r" ((USItype) (v)) \
|
|
|
|
|
: "g1", "o5" __AND_CLOBBER_CC)
|
|
|
|
|
#define UMUL_TIME 39 /* 39 instructions */
|
|
|
|
|
/* It's quite necessary to add this much assembler for the sparc.
|
|
|
|
|
The default udiv_qrnnd (in C) is more than 10 times slower! */
|
|
|
|
|
#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
|
|
|
|
|
__asm__ ("! Inlined udiv_qrnnd\n" \
|
|
|
|
|
" mov 32,%%g1\n" \
|
|
|
|
|
" subcc %1,%2,%%g0\n" \
|
|
|
|
|
"1: bcs 5f\n" \
|
|
|
|
|
" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
|
|
|
|
|
" sub %1,%2,%1 ! this kills msb of n\n" \
|
|
|
|
|
" addx %1,%1,%1 ! so this can't give carry\n" \
|
|
|
|
|
" subcc %%g1,1,%%g1\n" \
|
|
|
|
|
"2: bne 1b\n" \
|
|
|
|
|
" subcc %1,%2,%%g0\n" \
|
|
|
|
|
" bcs 3f\n" \
|
|
|
|
|
" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
|
|
|
|
|
" b 3f\n" \
|
|
|
|
|
" sub %1,%2,%1 ! this kills msb of n\n" \
|
|
|
|
|
"4: sub %1,%2,%1\n" \
|
|
|
|
|
"5: addxcc %1,%1,%1\n" \
|
|
|
|
|
" bcc 2b\n" \
|
|
|
|
|
" subcc %%g1,1,%%g1\n" \
|
|
|
|
|
"! Got carry from n. Subtract next step to cancel this carry.\n" \
|
|
|
|
|
" bne 4b\n" \
|
|
|
|
|
" addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
|
|
|
|
|
" sub %1,%2,%1\n" \
|
|
|
|
|
"3: xnor %0,0,%0\n" \
|
|
|
|
|
" ! End of inline udiv_qrnnd" \
|
|
|
|
|
: "=&r" ((USItype) (__q)), \
|
|
|
|
|
"=&r" ((USItype) (__r)) \
|
|
|
|
|
: "r" ((USItype) (__d)), \
|
|
|
|
|
"1" ((USItype) (__n1)), \
|
|
|
|
|
"0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
|
|
|
|
|
#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
|
|
|
|
|
#endif /* __sparclite__ */
|
|
|
|
|
#endif /* __sparc_v8__ */
|
|
|
|
|
#endif /* __sparc_v9__ */
|
|
|
|
|
#endif /* sparc32 */
|
|
|
|
|
|
|
|
|
|
#if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
|
|
|
|
|
&& W_TYPE_SIZE == 64
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype __carry = 0; \
|
|
|
|
|
__asm__ ("addcc\t%r5,%6,%1\n\t" \
|
|
|
|
|
"add\t%r3,%4,%0\n\t" \
|
|
|
|
|
"movcs\t%%xcc, 1, %2\n\t" \
|
|
|
|
|
"add\t%0, %2, %0" \
|
|
|
|
|
: "=r" ((UDItype)(sh)), \
|
|
|
|
|
"=&r" ((UDItype)(sl)), \
|
|
|
|
|
"+r" (__carry) \
|
|
|
|
|
: "%rJ" ((UDItype)(ah)), \
|
|
|
|
|
"rI" ((UDItype)(bh)), \
|
|
|
|
|
"%rJ" ((UDItype)(al)), \
|
|
|
|
|
"rI" ((UDItype)(bl)) \
|
|
|
|
|
__CLOBBER_CC); \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype __carry = 0; \
|
|
|
|
|
__asm__ ("subcc\t%r5,%6,%1\n\t" \
|
|
|
|
|
"sub\t%r3,%4,%0\n\t" \
|
|
|
|
|
"movcs\t%%xcc, 1, %2\n\t" \
|
|
|
|
|
"sub\t%0, %2, %0" \
|
|
|
|
|
: "=r" ((UDItype)(sh)), \
|
|
|
|
|
"=&r" ((UDItype)(sl)), \
|
|
|
|
|
"+r" (__carry) \
|
|
|
|
|
: "%rJ" ((UDItype)(ah)), \
|
|
|
|
|
"rI" ((UDItype)(bh)), \
|
|
|
|
|
"%rJ" ((UDItype)(al)), \
|
|
|
|
|
"rI" ((UDItype)(bl)) \
|
|
|
|
|
__CLOBBER_CC); \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
#define umul_ppmm(wh, wl, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype tmp1, tmp2, tmp3, tmp4; \
|
|
|
|
|
__asm__ __volatile__ ( \
|
|
|
|
|
"srl %7,0,%3\n\t" \
|
|
|
|
|
"mulx %3,%6,%1\n\t" \
|
|
|
|
|
"srlx %6,32,%2\n\t" \
|
|
|
|
|
"mulx %2,%3,%4\n\t" \
|
|
|
|
|
"sllx %4,32,%5\n\t" \
|
|
|
|
|
"srl %6,0,%3\n\t" \
|
|
|
|
|
"sub %1,%5,%5\n\t" \
|
|
|
|
|
"srlx %5,32,%5\n\t" \
|
|
|
|
|
"addcc %4,%5,%4\n\t" \
|
|
|
|
|
"srlx %7,32,%5\n\t" \
|
|
|
|
|
"mulx %3,%5,%3\n\t" \
|
|
|
|
|
"mulx %2,%5,%5\n\t" \
|
|
|
|
|
"sethi %%hi(0x80000000),%2\n\t" \
|
|
|
|
|
"addcc %4,%3,%4\n\t" \
|
|
|
|
|
"srlx %4,32,%4\n\t" \
|
|
|
|
|
"add %2,%2,%2\n\t" \
|
|
|
|
|
"movcc %%xcc,%%g0,%2\n\t" \
|
|
|
|
|
"addcc %5,%4,%5\n\t" \
|
|
|
|
|
"sllx %3,32,%3\n\t" \
|
|
|
|
|
"add %1,%3,%1\n\t" \
|
|
|
|
|
"add %5,%2,%0" \
|
|
|
|
|
: "=r" ((UDItype)(wh)), \
|
|
|
|
|
"=&r" ((UDItype)(wl)), \
|
|
|
|
|
"=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
|
|
|
|
|
: "r" ((UDItype)(u)), \
|
|
|
|
|
"r" ((UDItype)(v)) \
|
|
|
|
|
__CLOBBER_CC); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define UMUL_TIME 96
|
|
|
|
|
#define UDIV_TIME 230
|
|
|
|
|
#endif /* sparc64 */
|
|
|
|
|
|
|
|
|
|
#if defined (__vax__) && W_TYPE_SIZE == 32
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
|
|
|
|
|
: "=g" ((USItype) (sh)), \
|
|
|
|
|
"=&g" ((USItype) (sl)) \
|
|
|
|
|
: "%0" ((USItype) (ah)), \
|
|
|
|
|
"g" ((USItype) (bh)), \
|
|
|
|
|
"%1" ((USItype) (al)), \
|
|
|
|
|
"g" ((USItype) (bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
|
|
|
|
|
: "=g" ((USItype) (sh)), \
|
|
|
|
|
"=&g" ((USItype) (sl)) \
|
|
|
|
|
: "0" ((USItype) (ah)), \
|
|
|
|
|
"g" ((USItype) (bh)), \
|
|
|
|
|
"1" ((USItype) (al)), \
|
|
|
|
|
"g" ((USItype) (bl)))
|
|
|
|
|
#define umul_ppmm(xh, xl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
union { \
|
|
|
|
|
UDItype __ll; \
|
|
|
|
|
struct {USItype __l, __h;} __i; \
|
|
|
|
|
} __xx; \
|
|
|
|
|
USItype __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ("emul %1,%2,$0,%0" \
|
|
|
|
|
: "=r" (__xx.__ll) \
|
|
|
|
|
: "g" (__m0), \
|
|
|
|
|
"g" (__m1)); \
|
|
|
|
|
(xh) = __xx.__i.__h; \
|
|
|
|
|
(xl) = __xx.__i.__l; \
|
|
|
|
|
(xh) += ((((SItype) __m0 >> 31) & __m1) \
|
|
|
|
|
+ (((SItype) __m1 >> 31) & __m0)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define sdiv_qrnnd(q, r, n1, n0, d) \
|
|
|
|
|
do { \
|
|
|
|
|
union {DItype __ll; \
|
|
|
|
|
struct {SItype __l, __h;} __i; \
|
|
|
|
|
} __xx; \
|
|
|
|
|
__xx.__i.__h = n1; __xx.__i.__l = n0; \
|
|
|
|
|
__asm__ ("ediv %3,%2,%0,%1" \
|
|
|
|
|
: "=g" (q), "=g" (r) \
|
|
|
|
|
: "g" (__xx.__ll), "g" (d)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif /* __vax__ */
|
|
|
|
|
|
|
|
|
|
#ifdef _TMS320C6X
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do \
|
|
|
|
|
{ \
|
|
|
|
|
UDItype __ll; \
|
|
|
|
|
__asm__ ("addu .l1 %1, %2, %0" \
|
|
|
|
|
: "=a" (__ll) : "a" (al), "a" (bl)); \
|
|
|
|
|
(sl) = (USItype)__ll; \
|
|
|
|
|
(sh) = ((USItype)(__ll >> 32)) + (ah) + (bh); \
|
|
|
|
|
} \
|
|
|
|
|
while (0)
|
|
|
|
|
|
|
|
|
|
#ifdef _TMS320C6400_PLUS
|
|
|
|
|
#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
|
|
|
|
|
(w1) = (USItype) (__x >> 32); \
|
|
|
|
|
(w0) = (USItype) (__x); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif /* _TMS320C6400_PLUS */
|
|
|
|
|
|
|
|
|
|
#define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
|
|
|
|
|
#ifdef _TMS320C6400
|
|
|
|
|
#define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
|
|
|
|
|
#endif
|
|
|
|
|
#define UMUL_TIME 4
|
|
|
|
|
#define UDIV_TIME 40
|
|
|
|
|
#endif /* _TMS320C6X */
|
|
|
|
|
|
|
|
|
|
#if defined (__xtensa__) && W_TYPE_SIZE == 32
|
|
|
|
|
/* This code is not Xtensa-configuration-specific, so rely on the compiler
|
|
|
|
|
to expand builtin functions depending on what configuration features
|
|
|
|
|
are available. This avoids library calls when the operation can be
|
|
|
|
|
performed in-line. */
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
DWunion __w; \
|
|
|
|
|
__w.ll = __builtin_umulsidi3 (u, v); \
|
|
|
|
|
w1 = __w.s.high; \
|
|
|
|
|
w0 = __w.s.low; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define __umulsidi3(u, v) __builtin_umulsidi3 (u, v)
|
|
|
|
|
#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
|
|
|
|
|
#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
|
|
|
|
|
#endif /* __xtensa__ */
|
|
|
|
|
|
|
|
|
|
#if defined xstormy16
|
|
|
|
|
extern UHItype __stormy16_count_leading_zeros (UHItype);
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do \
|
|
|
|
|
{ \
|
|
|
|
|
UHItype size; \
|
|
|
|
|
\
|
|
|
|
|
/* We assume that W_TYPE_SIZE is a multiple of 16... */ \
|
|
|
|
|
for ((count) = 0, size = W_TYPE_SIZE; size; size -= 16) \
|
|
|
|
|
{ \
|
|
|
|
|
UHItype c; \
|
|
|
|
|
\
|
|
|
|
|
c = __clzhi2 ((x) >> (size - 16)); \
|
|
|
|
|
(count) += c; \
|
|
|
|
|
if (c != 16) \
|
|
|
|
|
break; \
|
|
|
|
|
} \
|
|
|
|
|
} \
|
|
|
|
|
while (0)
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if defined (__z8000__) && W_TYPE_SIZE == 16
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
|
|
|
|
|
: "=r" ((unsigned int)(sh)), \
|
|
|
|
|
"=&r" ((unsigned int)(sl)) \
|
|
|
|
|
: "%0" ((unsigned int)(ah)), \
|
|
|
|
|
"r" ((unsigned int)(bh)), \
|
|
|
|
|
"%1" ((unsigned int)(al)), \
|
|
|
|
|
"rQR" ((unsigned int)(bl)))
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
__asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
|
|
|
|
|
: "=r" ((unsigned int)(sh)), \
|
|
|
|
|
"=&r" ((unsigned int)(sl)) \
|
|
|
|
|
: "0" ((unsigned int)(ah)), \
|
|
|
|
|
"r" ((unsigned int)(bh)), \
|
|
|
|
|
"1" ((unsigned int)(al)), \
|
|
|
|
|
"rQR" ((unsigned int)(bl)))
|
|
|
|
|
#define umul_ppmm(xh, xl, m0, m1) \
|
|
|
|
|
do { \
|
|
|
|
|
union {long int __ll; \
|
|
|
|
|
struct {unsigned int __h, __l;} __i; \
|
|
|
|
|
} __xx; \
|
|
|
|
|
unsigned int __m0 = (m0), __m1 = (m1); \
|
|
|
|
|
__asm__ ("mult %S0,%H3" \
|
|
|
|
|
: "=r" (__xx.__i.__h), \
|
|
|
|
|
"=r" (__xx.__i.__l) \
|
|
|
|
|
: "%1" (__m0), \
|
|
|
|
|
"rQR" (__m1)); \
|
|
|
|
|
(xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
|
|
|
|
|
(xh) += ((((signed int) __m0 >> 15) & __m1) \
|
|
|
|
|
+ (((signed int) __m1 >> 15) & __m0)); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif /* __z8000__ */
|
|
|
|
|
|
|
|
|
|
#endif /* __GNUC__ */
|
|
|
|
|
|
|
|
|
|
/* If this machine has no inline assembler, use C macros. */
|
|
|
|
|
|
|
|
|
|
#if !defined (add_ssaaaa)
|
|
|
|
|
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __x; \
|
|
|
|
|
__x = (al) + (bl); \
|
|
|
|
|
(sh) = (ah) + (bh) + (__x < (al)); \
|
|
|
|
|
(sl) = __x; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if !defined (sub_ddmmss)
|
|
|
|
|
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __x; \
|
|
|
|
|
__x = (al) - (bl); \
|
|
|
|
|
(sh) = (ah) - (bh) - (__x > (al)); \
|
|
|
|
|
(sl) = __x; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
|
|
|
|
|
smul_ppmm. */
|
|
|
|
|
#if !defined (umul_ppmm) && defined (smul_ppmm)
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __w1; \
|
|
|
|
|
UWtype __xm0 = (u), __xm1 = (v); \
|
|
|
|
|
smul_ppmm (__w1, w0, __xm0, __xm1); \
|
|
|
|
|
(w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
|
|
|
|
|
+ (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If we still don't have umul_ppmm, define it using plain C. */
|
|
|
|
|
#if !defined (umul_ppmm)
|
|
|
|
|
#define umul_ppmm(w1, w0, u, v) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __x0, __x1, __x2, __x3; \
|
|
|
|
|
UHWtype __ul, __vl, __uh, __vh; \
|
|
|
|
|
\
|
|
|
|
|
__ul = __ll_lowpart (u); \
|
|
|
|
|
__uh = __ll_highpart (u); \
|
|
|
|
|
__vl = __ll_lowpart (v); \
|
|
|
|
|
__vh = __ll_highpart (v); \
|
|
|
|
|
\
|
|
|
|
|
__x0 = (UWtype) __ul * __vl; \
|
|
|
|
|
__x1 = (UWtype) __ul * __vh; \
|
|
|
|
|
__x2 = (UWtype) __uh * __vl; \
|
|
|
|
|
__x3 = (UWtype) __uh * __vh; \
|
|
|
|
|
\
|
|
|
|
|
__x1 += __ll_highpart (__x0);/* this can't give carry */ \
|
|
|
|
|
__x1 += __x2; /* but this indeed can */ \
|
|
|
|
|
if (__x1 < __x2) /* did we get it? */ \
|
|
|
|
|
__x3 += __ll_B; /* yes, add it in the proper pos. */ \
|
|
|
|
|
\
|
|
|
|
|
(w1) = __x3 + __ll_highpart (__x1); \
|
|
|
|
|
(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if !defined (__umulsidi3)
|
|
|
|
|
#define __umulsidi3(u, v) \
|
|
|
|
|
({DWunion __w; \
|
|
|
|
|
umul_ppmm (__w.s.high, __w.s.low, u, v); \
|
|
|
|
|
__w.ll; })
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Define this unconditionally, so it can be used for debugging. */
|
|
|
|
|
#define __udiv_qrnnd_c(q, r, n1, n0, d) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __d1, __d0, __q1, __q0; \
|
|
|
|
|
UWtype __r1, __r0, __m; \
|
|
|
|
|
__d1 = __ll_highpart (d); \
|
|
|
|
|
__d0 = __ll_lowpart (d); \
|
|
|
|
|
\
|
|
|
|
|
__r1 = (n1) % __d1; \
|
|
|
|
|
__q1 = (n1) / __d1; \
|
|
|
|
|
__m = (UWtype) __q1 * __d0; \
|
|
|
|
|
__r1 = __r1 * __ll_B | __ll_highpart (n0); \
|
|
|
|
|
if (__r1 < __m) \
|
|
|
|
|
{ \
|
|
|
|
|
__q1--, __r1 += (d); \
|
|
|
|
|
if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
|
|
|
|
|
if (__r1 < __m) \
|
|
|
|
|
__q1--, __r1 += (d); \
|
|
|
|
|
} \
|
|
|
|
|
__r1 -= __m; \
|
|
|
|
|
\
|
|
|
|
|
__r0 = __r1 % __d1; \
|
|
|
|
|
__q0 = __r1 / __d1; \
|
|
|
|
|
__m = (UWtype) __q0 * __d0; \
|
|
|
|
|
__r0 = __r0 * __ll_B | __ll_lowpart (n0); \
|
|
|
|
|
if (__r0 < __m) \
|
|
|
|
|
{ \
|
|
|
|
|
__q0--, __r0 += (d); \
|
|
|
|
|
if (__r0 >= (d)) \
|
|
|
|
|
if (__r0 < __m) \
|
|
|
|
|
__q0--, __r0 += (d); \
|
|
|
|
|
} \
|
|
|
|
|
__r0 -= __m; \
|
|
|
|
|
\
|
|
|
|
|
(q) = (UWtype) __q1 * __ll_B | __q0; \
|
|
|
|
|
(r) = __r0; \
|
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
|
|
|
|
|
__udiv_w_sdiv (defined in libgcc or elsewhere). */
|
|
|
|
|
#if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
|
|
|
|
|
#define udiv_qrnnd(q, r, nh, nl, d) \
|
|
|
|
|
do { \
|
2014-10-11 17:29:10 +08:00
|
|
|
extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype); \
|
|
|
|
|
UWtype __r; \
|
2013-12-04 18:49:14 +08:00
|
|
|
(q) = __udiv_w_sdiv (&__r, nh, nl, d); \
|
|
|
|
|
(r) = __r; \
|
|
|
|
|
} while (0)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
|
|
|
|
|
#if !defined (udiv_qrnnd)
|
|
|
|
|
#define UDIV_NEEDS_NORMALIZATION 1
|
|
|
|
|
#define udiv_qrnnd __udiv_qrnnd_c
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if !defined (count_leading_zeros)
|
|
|
|
|
#define count_leading_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
|
UWtype __xr = (x); \
|
|
|
|
|
UWtype __a; \
|
|
|
|
|
\
|
|
|
|
|
if (W_TYPE_SIZE <= 32) \
|
|
|
|
|
{ \
|
|
|
|
|
__a = __xr < ((UWtype)1<<2*__BITS4) \
|
|
|
|
|
? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
|
|
|
|
|
: (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
|
|
|
|
|
} \
|
|
|
|
|
else \
|
|
|
|
|
{ \
|
|
|
|
|
for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
|
|
|
|
|
if (((__xr >> __a) & 0xff) != 0) \
|
|
|
|
|
break; \
|
|
|
|
|
} \
|
|
|
|
|
\
|
|
|
|
|
(count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if !defined (count_trailing_zeros)
|
|
|
|
|
/* Define count_trailing_zeros using count_leading_zeros. The latter might be
|
|
|
|
|
defined in asm, but if it is not, the C version above is good enough. */
|
|
|
|
|
#define count_trailing_zeros(count, x) \
|
|
|
|
|
do { \
|
|
|
|
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UWtype __ctz_x = (x); \
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UWtype __ctz_c; \
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count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
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(count) = W_TYPE_SIZE - 1 - __ctz_c; \
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} while (0)
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#endif
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#ifndef UDIV_NEEDS_NORMALIZATION
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#define UDIV_NEEDS_NORMALIZATION 0
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#endif
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