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Diffstat (limited to 'lib/gcc/arm-eabi/4.6.x-google/plugin/include/double-int.h')
| -rw-r--r-- | lib/gcc/arm-eabi/4.6.x-google/plugin/include/double-int.h | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/lib/gcc/arm-eabi/4.6.x-google/plugin/include/double-int.h b/lib/gcc/arm-eabi/4.6.x-google/plugin/include/double-int.h deleted file mode 100644 index 6d15551..0000000 --- a/lib/gcc/arm-eabi/4.6.x-google/plugin/include/double-int.h +++ /dev/null @@ -1,320 +0,0 @@ -/* Operations with long integers. - Copyright (C) 2006, 2007, 2008, 2010 Free Software Foundation, Inc. - -This file is part of GCC. - -GCC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 3, or (at your option) any -later version. - -GCC is distributed in the hope that it will be useful, but WITHOUT -ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -for more details. - -You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING3. If not see -<http://www.gnu.org/licenses/>. */ - -#ifndef DOUBLE_INT_H -#define DOUBLE_INT_H - -#ifndef GENERATOR_FILE -#include <gmp.h> -#endif -#include "coretypes.h" - -/* A large integer is currently represented as a pair of HOST_WIDE_INTs. - It therefore represents a number with precision of - 2 * HOST_BITS_PER_WIDE_INT bits (it is however possible that the - internal representation will change, if numbers with greater precision - are needed, so the users should not rely on it). The representation does - not contain any information about signedness of the represented value, so - it can be used to represent both signed and unsigned numbers. For - operations where the results depend on signedness (division, comparisons), - it must be specified separately. For each such operation, there are three - versions of the function -- double_int_op, that takes an extra UNS argument - giving the signedness of the values, and double_int_sop and double_int_uop - that stand for its specializations for signed and unsigned values. - - You may also represent with numbers in smaller precision using double_int. - You however need to use double_int_ext (that fills in the bits of the - number over the prescribed precision with zeros or with the sign bit) before - operations that do not perform arithmetics modulo 2^precision (comparisons, - division), and possibly before storing the results, if you want to keep - them in some canonical form). In general, the signedness of double_int_ext - should match the signedness of the operation. - - ??? The components of double_int differ in signedness mostly for - historical reasons (they replace an older structure used to represent - numbers with precision higher than HOST_WIDE_INT). It might be less - confusing to have them both signed or both unsigned. */ - -typedef struct -{ - unsigned HOST_WIDE_INT low; - HOST_WIDE_INT high; -} double_int; - -#define HOST_BITS_PER_DOUBLE_INT (2 * HOST_BITS_PER_WIDE_INT) - -/* Constructors and conversions. */ - -/* Constructs double_int from integer CST. The bits over the precision of - HOST_WIDE_INT are filled with the sign bit. */ - -static inline double_int -shwi_to_double_int (HOST_WIDE_INT cst) -{ - double_int r; - - r.low = (unsigned HOST_WIDE_INT) cst; - r.high = cst < 0 ? -1 : 0; - - return r; -} - -/* Some useful constants. */ - -#define double_int_minus_one (shwi_to_double_int (-1)) -#define double_int_zero (shwi_to_double_int (0)) -#define double_int_one (shwi_to_double_int (1)) -#define double_int_two (shwi_to_double_int (2)) -#define double_int_ten (shwi_to_double_int (10)) - -/* Constructs double_int from unsigned integer CST. The bits over the - precision of HOST_WIDE_INT are filled with zeros. */ - -static inline double_int -uhwi_to_double_int (unsigned HOST_WIDE_INT cst) -{ - double_int r; - - r.low = cst; - r.high = 0; - - return r; -} - -/* Returns value of CST as a signed number. CST must satisfy - double_int_fits_in_shwi_p. */ - -static inline HOST_WIDE_INT -double_int_to_shwi (double_int cst) -{ - return (HOST_WIDE_INT) cst.low; -} - -/* Returns value of CST as an unsigned number. CST must satisfy - double_int_fits_in_uhwi_p. */ - -static inline unsigned HOST_WIDE_INT -double_int_to_uhwi (double_int cst) -{ - return cst.low; -} - -bool double_int_fits_in_hwi_p (double_int, bool); -bool double_int_fits_in_shwi_p (double_int); - -/* Returns true if CST fits in unsigned HOST_WIDE_INT. */ - -static inline bool -double_int_fits_in_uhwi_p (double_int cst) -{ - return cst.high == 0; -} - -/* The following operations perform arithmetics modulo 2^precision, - so you do not need to call double_int_ext between them, even if - you are representing numbers with precision less than - 2 * HOST_BITS_PER_WIDE_INT bits. */ - -double_int double_int_mul (double_int, double_int); -double_int double_int_mul_with_sign (double_int, double_int, bool, int *); -double_int double_int_add (double_int, double_int); -double_int double_int_sub (double_int, double_int); -double_int double_int_neg (double_int); - -/* You must ensure that double_int_ext is called on the operands - of the following operations, if the precision of the numbers - is less than 2 * HOST_BITS_PER_WIDE_INT bits. */ -double_int double_int_div (double_int, double_int, bool, unsigned); -double_int double_int_sdiv (double_int, double_int, unsigned); -double_int double_int_udiv (double_int, double_int, unsigned); -double_int double_int_mod (double_int, double_int, bool, unsigned); -double_int double_int_smod (double_int, double_int, unsigned); -double_int double_int_umod (double_int, double_int, unsigned); -double_int double_int_divmod (double_int, double_int, bool, unsigned, double_int *); -double_int double_int_sdivmod (double_int, double_int, unsigned, double_int *); -double_int double_int_udivmod (double_int, double_int, unsigned, double_int *); - -double_int double_int_setbit (double_int, unsigned); -int double_int_ctz (double_int); - -/* Logical operations. */ - -/* Returns ~A. */ - -static inline double_int -double_int_not (double_int a) -{ - a.low = ~a.low; - a.high = ~a.high; - return a; -} - -/* Returns A | B. */ - -static inline double_int -double_int_ior (double_int a, double_int b) -{ - a.low |= b.low; - a.high |= b.high; - return a; -} - -/* Returns A & B. */ - -static inline double_int -double_int_and (double_int a, double_int b) -{ - a.low &= b.low; - a.high &= b.high; - return a; -} - -/* Returns A & ~B. */ - -static inline double_int -double_int_and_not (double_int a, double_int b) -{ - a.low &= ~b.low; - a.high &= ~b.high; - return a; -} - -/* Returns A ^ B. */ - -static inline double_int -double_int_xor (double_int a, double_int b) -{ - a.low ^= b.low; - a.high ^= b.high; - return a; -} - - -/* Shift operations. */ -double_int double_int_lshift (double_int, HOST_WIDE_INT, unsigned int, bool); -double_int double_int_rshift (double_int, HOST_WIDE_INT, unsigned int, bool); -double_int double_int_lrotate (double_int, HOST_WIDE_INT, unsigned int); -double_int double_int_rrotate (double_int, HOST_WIDE_INT, unsigned int); - -/* Returns true if CST is negative. Of course, CST is considered to - be signed. */ - -static inline bool -double_int_negative_p (double_int cst) -{ - return cst.high < 0; -} - -int double_int_cmp (double_int, double_int, bool); -int double_int_scmp (double_int, double_int); -int double_int_ucmp (double_int, double_int); - -double_int double_int_max (double_int, double_int, bool); -double_int double_int_smax (double_int, double_int); -double_int double_int_umax (double_int, double_int); - -double_int double_int_min (double_int, double_int, bool); -double_int double_int_smin (double_int, double_int); -double_int double_int_umin (double_int, double_int); - -void dump_double_int (FILE *, double_int, bool); - -/* Zero and sign extension of numbers in smaller precisions. */ - -double_int double_int_ext (double_int, unsigned, bool); -double_int double_int_sext (double_int, unsigned); -double_int double_int_zext (double_int, unsigned); -double_int double_int_mask (unsigned); - -#define ALL_ONES (~((unsigned HOST_WIDE_INT) 0)) - -/* The operands of the following comparison functions must be processed - with double_int_ext, if their precision is less than - 2 * HOST_BITS_PER_WIDE_INT bits. */ - -/* Returns true if CST is zero. */ - -static inline bool -double_int_zero_p (double_int cst) -{ - return cst.low == 0 && cst.high == 0; -} - -/* Returns true if CST is one. */ - -static inline bool -double_int_one_p (double_int cst) -{ - return cst.low == 1 && cst.high == 0; -} - -/* Returns true if CST is minus one. */ - -static inline bool -double_int_minus_one_p (double_int cst) -{ - return (cst.low == ALL_ONES && cst.high == -1); -} - -/* Returns true if CST1 == CST2. */ - -static inline bool -double_int_equal_p (double_int cst1, double_int cst2) -{ - return cst1.low == cst2.low && cst1.high == cst2.high; -} - - -/* Legacy interface with decomposed high/low parts. */ - -extern int add_double_with_sign (unsigned HOST_WIDE_INT, HOST_WIDE_INT, - unsigned HOST_WIDE_INT, HOST_WIDE_INT, - unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, - bool); -#define add_double(l1,h1,l2,h2,lv,hv) \ - add_double_with_sign (l1, h1, l2, h2, lv, hv, false) -extern int neg_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, - unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); -extern int mul_double_with_sign (unsigned HOST_WIDE_INT, HOST_WIDE_INT, - unsigned HOST_WIDE_INT, HOST_WIDE_INT, - unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, - bool); -#define mul_double(l1,h1,l2,h2,lv,hv) \ - mul_double_with_sign (l1, h1, l2, h2, lv, hv, false) -extern void lshift_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, - HOST_WIDE_INT, unsigned int, - unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, bool); -extern void rshift_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, - HOST_WIDE_INT, unsigned int, - unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, bool); -extern int div_and_round_double (unsigned, int, unsigned HOST_WIDE_INT, - HOST_WIDE_INT, unsigned HOST_WIDE_INT, - HOST_WIDE_INT, unsigned HOST_WIDE_INT *, - HOST_WIDE_INT *, unsigned HOST_WIDE_INT *, - HOST_WIDE_INT *); - - -#ifndef GENERATOR_FILE -/* Conversion to and from GMP integer representations. */ - -void mpz_set_double_int (mpz_t, double_int, bool); -double_int mpz_get_double_int (const_tree, mpz_t, bool); -#endif - -#endif /* DOUBLE_INT_H */ |