X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fdouble-int.h;h=47991ca41b8feaf579023bb241961c277aa34b69;hb=0395dc5ef775b63c96fcb017b334b4fae14447d2;hp=c6113f336a6331187c9020ef5183e8bddce2e266;hpb=9974810227289462640c3b8d7963dd2928ec87ed;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/double-int.h b/gcc/double-int.h index c6113f336a6..47991ca41b8 100644 --- a/gcc/double-int.h +++ b/gcc/double-int.h @@ -1,26 +1,30 @@ /* Operations with long integers. - Copyright (C) 2006 Free Software Foundation, Inc. - + 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 2, or (at your option) any +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 COPYING. If not, write to the Free -Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef DOUBLE_INT_H #define DOUBLE_INT_H +#ifndef GENERATOR_FILE +#include +#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 @@ -44,7 +48,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA ??? The components of double_int differ in signedness mostly for historical reasons (they replace an older structure used to represent - numbers with precision wigher than HOST_WIDE_INT). It might be less + numbers with precision higher than HOST_WIDE_INT). It might be less confusing to have them both signed or both unsigned. */ typedef struct @@ -53,12 +57,16 @@ typedef struct HOST_WIDE_INT high; } double_int; -union tree_node; +#define HOST_BITS_PER_DOUBLE_INT (2 * HOST_BITS_PER_WIDE_INT) /* Constructors and conversions. */ -union tree_node *double_int_to_tree (union tree_node *, double_int); -double_int tree_to_double_int (union tree_node *tree); +tree double_int_to_tree (tree, double_int); +bool double_int_fits_to_tree_p (const_tree, double_int); + +/* Constructs double_int from tree CST. */ + +#define tree_to_double_int(cst) (TREE_INT_CST (cst)) /* Constructs double_int from integer CST. The bits over the precision of HOST_WIDE_INT are filled with the sign bit. */ @@ -67,7 +75,7 @@ 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; @@ -89,7 +97,7 @@ static inline double_int uhwi_to_double_int (unsigned HOST_WIDE_INT cst) { double_int r; - + r.low = cst; r.high = 0; @@ -116,7 +124,36 @@ unsigned HOST_WIDE_INT double_int_to_uhwi (double_int); 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); -bool double_int_negative_p (double_int); +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); + +/* Logical operations. */ +static inline double_int +double_int_not (double_int a) +{ + a.low = ~a.low; + a.high = ~ a.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); + +/* 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); @@ -127,6 +164,7 @@ void dump_double_int (FILE *, double_int, bool); 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)) @@ -166,4 +204,52 @@ 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 tree force_fit_type_double (tree, unsigned HOST_WIDE_INT, HOST_WIDE_INT, + int, bool); +extern int fit_double_type (unsigned HOST_WIDE_INT, HOST_WIDE_INT, + unsigned HOST_WIDE_INT *, HOST_WIDE_INT *, + const_tree); +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 void lrotate_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, + HOST_WIDE_INT, unsigned int, + unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); +extern void rrotate_double (unsigned HOST_WIDE_INT, HOST_WIDE_INT, + HOST_WIDE_INT, unsigned int, + unsigned HOST_WIDE_INT *, HOST_WIDE_INT *); +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 */