X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fmachmode.h;h=c978c0a9b52ee61f91d2705652695e7686280f49;hb=3588eff44bee374d3da3b564b6d9a870303aca9a;hp=bb069d9997b69707c0196cede56fb0f792537fe4;hpb=eef261c694d66faf3d7db98090349368759f0304;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/machmode.h b/gcc/machmode.h index bb069d9997b..c978c0a9b52 100644 --- a/gcc/machmode.h +++ b/gcc/machmode.h @@ -1,177 +1,163 @@ -/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h. - Copyright (C) 1991, 1993 Free Software Foundation, Inc. +/* Machine mode definitions for GCC; included by rtl.h and tree.h. + Copyright (C) 1991, 1993, 1994, 1996, 1998, 1999, 2000, 2001, 2003 + Free Software Foundation, Inc. -This file is part of GNU CC. +This file is part of GCC. -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - - -/* Add prototype support. */ -#ifndef PROTO -#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) -#define PROTO(ARGS) ARGS -#else -#define PROTO(ARGS) () -#endif -#endif +along with GCC; see the file COPYING. If not, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ #ifndef HAVE_MACHINE_MODES - -/* Strictly speaking, this isn't the proper place to include these definitions, - but this file is included by every GCC file. - - Some systems define these in, e.g., param.h. We undefine these names - here to avoid the warnings. We prefer to use our definitions since we - know they are correct. */ - -#undef MIN -#undef MAX - -#define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) -#define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) - -/* Find the largest host integer type and set its size and type. */ - -#ifndef HOST_BITS_PER_WIDE_INT - -#if HOST_BITS_PER_LONG > HOST_BITS_PER_INT -#define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG -#define HOST_WIDE_INT long -#else -#define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_INT -#define HOST_WIDE_INT int -#endif - -#endif - -/* Define the number of entries in an 8-bit `shorts' array needed to represent - the largest supported constant, which is twice the width of the largest - host integer type. */ - -#ifndef MAX_SHORTS -#define MAX_SHORTS (HOST_BITS_PER_WIDE_INT * 2 / 8) -#endif - -/* Provide a default way to print an address in hex via printf. */ - -#ifndef HOST_PTR_PRINTF -#define HOST_PTR_PRINTF sizeof (int) == sizeof (char *) ? "%x" : "%lx" -#endif - -/* Make an enum class that gives all the machine modes. */ - -#define DEF_MACHMODE(SYM, NAME, TYPE, SIZE, UNIT, WIDER) SYM, - -enum machine_mode { -#include "machmode.def" - -#ifdef EXTRA_CC_MODES - EXTRA_CC_MODES, -#endif -MAX_MACHINE_MODE }; - -#undef DEF_MACHMODE - #define HAVE_MACHINE_MODES -#ifndef NUM_MACHINE_MODES -#define NUM_MACHINE_MODES (int) MAX_MACHINE_MODE -#endif +/* Make an enum class that gives all the machine modes. */ +#include "insn-modes.h" /* Get the name of mode MODE as a string. */ -extern char *mode_name[]; -#define GET_MODE_NAME(MODE) (mode_name[(int)(MODE)]) +extern const char * const mode_name[NUM_MACHINE_MODES]; +#define GET_MODE_NAME(MODE) mode_name[MODE] + +/* Mode classes. */ -enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC, - MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, MAX_MODE_CLASS}; +#include "mode-classes.def" +#define DEF_MODE_CLASS(M) M +enum mode_class { MODE_CLASSES, MAX_MODE_CLASS }; +#undef DEF_MODE_CLASS +#undef MODE_CLASSES /* Get the general kind of object that mode MODE represents (integer, floating, complex, etc.) */ -extern enum mode_class mode_class[]; -#define GET_MODE_CLASS(MODE) (mode_class[(int)(MODE)]) +extern const unsigned char mode_class[NUM_MACHINE_MODES]; +#define GET_MODE_CLASS(MODE) mode_class[MODE] /* Nonzero if MODE is an integral mode. */ #define INTEGRAL_MODE_P(MODE) \ (GET_MODE_CLASS (MODE) == MODE_INT \ || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT \ - || GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT) + || GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT \ + || GET_MODE_CLASS (MODE) == MODE_VECTOR_INT) /* Nonzero if MODE is a floating-point mode. */ #define FLOAT_MODE_P(MODE) \ (GET_MODE_CLASS (MODE) == MODE_FLOAT \ - || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT) - -/* Get the size in bytes of an object of mode MODE. */ + || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT \ + || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT) -extern int mode_size[]; -#define GET_MODE_SIZE(MODE) (mode_size[(int)(MODE)]) +/* Nonzero if MODE is a complex mode. */ +#define COMPLEX_MODE_P(MODE) \ + (GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT \ + || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT) -/* Get the size in bytes of the basic parts of an object of mode MODE. */ +/* Nonzero if MODE is a vector mode. */ +#define VECTOR_MODE_P(MODE) \ + (GET_MODE_CLASS (MODE) == MODE_VECTOR_INT \ + || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT) -extern int mode_unit_size[]; -#define GET_MODE_UNIT_SIZE(MODE) (mode_unit_size[(int)(MODE)]) +/* Nonzero if MODE is a scalar integral mode. */ +#define SCALAR_INT_MODE_P(MODE) \ + (GET_MODE_CLASS (MODE) == MODE_INT \ + || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT) -/* Get the number of units in the object. */ +/* Nonzero if MODE is a scalar floating point mode. */ +#define SCALAR_FLOAT_MODE_P(MODE) \ + (GET_MODE_CLASS (MODE) == MODE_FLOAT) -#define GET_MODE_NUNITS(MODE) \ - ((GET_MODE_UNIT_SIZE ((MODE)) == 0) ? 0 \ - : (GET_MODE_SIZE ((MODE)) / GET_MODE_UNIT_SIZE ((MODE)))) +/* Get the size in bytes and bits of an object of mode MODE. */ -/* Get the size in bits of an object of mode MODE. */ +extern CONST_MODE_SIZE unsigned char mode_size[NUM_MACHINE_MODES]; +#define GET_MODE_SIZE(MODE) ((unsigned short) mode_size[MODE]) +#define GET_MODE_BITSIZE(MODE) ((unsigned short) (GET_MODE_SIZE (MODE) * BITS_PER_UNIT)) -#define GET_MODE_BITSIZE(MODE) (BITS_PER_UNIT * mode_size[(int)(MODE)]) +/* Get the number of value bits of an object of mode MODE. */ +extern const unsigned short mode_precision[NUM_MACHINE_MODES]; +#define GET_MODE_PRECISION(MODE) mode_precision[MODE] /* Get a bitmask containing 1 for all bits in a word that fit within mode MODE. */ -#define GET_MODE_MASK(MODE) \ - ((GET_MODE_BITSIZE (MODE) >= HOST_BITS_PER_WIDE_INT) \ - ?(HOST_WIDE_INT) ~0 : (((HOST_WIDE_INT) 1 << GET_MODE_BITSIZE (MODE)) - 1)) +extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES]; + +#define GET_MODE_MASK(MODE) mode_mask_array[MODE] + +/* Return the mode of the inner elements in a vector. */ + +extern const unsigned char mode_inner[NUM_MACHINE_MODES]; +#define GET_MODE_INNER(MODE) mode_inner[MODE] + +/* Get the size in bytes of the basic parts of an object of mode MODE. */ + +#define GET_MODE_UNIT_SIZE(MODE) \ + (GET_MODE_INNER (MODE) == VOIDmode \ + ? GET_MODE_SIZE (MODE) \ + : GET_MODE_SIZE (GET_MODE_INNER (MODE))) + +/* Get the number of units in the object. */ + +extern const unsigned char mode_nunits[NUM_MACHINE_MODES]; +#define GET_MODE_NUNITS(MODE) mode_nunits[MODE] /* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */ -extern enum machine_mode mode_wider_mode[]; -#define GET_MODE_WIDER_MODE(MODE) (mode_wider_mode[(int)(MODE)]) +extern const unsigned char mode_wider[NUM_MACHINE_MODES]; +#define GET_MODE_WIDER_MODE(MODE) mode_wider[MODE] /* Return the mode for data of a given size SIZE and mode class CLASS. If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE. The value is BLKmode if no other mode is found. */ -extern enum machine_mode mode_for_size PROTO((unsigned int, enum mode_class, int)); +extern enum machine_mode mode_for_size (unsigned int, enum mode_class, int); + +/* Similar, but find the smallest mode for a given width. */ + +extern enum machine_mode smallest_mode_for_size (unsigned int, + enum mode_class); + + +/* Return an integer mode of the exact same size as the input mode, + or BLKmode on failure. */ + +extern enum machine_mode int_mode_for_mode (enum machine_mode); /* Find the best mode to use to access a bit field. */ -extern enum machine_mode get_best_mode PROTO((int, int, int, enum machine_mode, int)); +extern enum machine_mode get_best_mode (int, int, unsigned int, + enum machine_mode, int); /* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */ -#define GET_MODE_ALIGNMENT(MODE) \ - MIN (BIGGEST_ALIGNMENT, \ - MAX (1, (GET_MODE_UNIT_SIZE (MODE) * BITS_PER_UNIT))) +extern CONST_MODE_BASE_ALIGN unsigned char mode_base_align[NUM_MACHINE_MODES]; + +extern unsigned get_mode_alignment (enum machine_mode); + +#define GET_MODE_ALIGNMENT(MODE) get_mode_alignment (MODE) /* For each class, get the narrowest mode in that class. */ -extern enum machine_mode class_narrowest_mode[]; -#define GET_CLASS_NARROWEST_MODE(CLASS) class_narrowest_mode[(int)(CLASS)] +extern const unsigned char class_narrowest_mode[MAX_MODE_CLASS]; +#define GET_CLASS_NARROWEST_MODE(CLASS) class_narrowest_mode[CLASS] -/* Define the integer modes whose sizes are BITS_PER_UNIT - and BITS_PER_WORD. */ +/* Define the integer modes whose sizes are BITS_PER_UNIT and BITS_PER_WORD + and the mode whose class is Pmode and whose size is POINTER_SIZE. */ extern enum machine_mode byte_mode; extern enum machine_mode word_mode; +extern enum machine_mode ptr_mode; + +/* Target-dependent machine mode initialization - in insn-modes.c. */ +extern void init_adjust_machine_modes (void); #endif /* not HAVE_MACHINE_MODES */