X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fmachmode.h;h=c978c0a9b52ee61f91d2705652695e7686280f49;hb=648298e892dac93092649dbe92a8865adbe51748;hp=67bcb355fd38d62ac72c4a668092a4d5532be083;hpb=ca9902fc32856cc08accfbaf01047dcadb4f8b9f;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/machmode.h b/gcc/machmode.h index 67bcb355fd3..c978c0a9b52 100644 --- a/gcc/machmode.h +++ b/gcc/machmode.h @@ -1,122 +1,163 @@ -/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h. - Copyright (C) 1991 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. */ - +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 +#define HAVE_MACHINE_MODES -/* Strictly speaking, this isn't the proper place to include these definitions, - but this file is included by every GCC file. +/* Make an enum class that gives all the machine modes. */ +#include "insn-modes.h" - 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. */ +/* Get the name of mode MODE as a string. */ -#undef MIN -#undef MAX +extern const char * const mode_name[NUM_MACHINE_MODES]; +#define GET_MODE_NAME(MODE) mode_name[MODE] -#define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) -#define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) +/* Mode classes. */ -/* Make an enum class that gives all the machine modes. */ +#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 -#define DEF_MACHMODE(SYM, NAME, TYPE, SIZE, UNIT, WIDER) SYM, +/* Get the general kind of object that mode MODE represents + (integer, floating, complex, etc.) */ -enum machine_mode { -#include "machmode.def" +extern const unsigned char mode_class[NUM_MACHINE_MODES]; +#define GET_MODE_CLASS(MODE) mode_class[MODE] -#ifdef EXTRA_CC_MODES - EXTRA_CC_MODES, -#endif -MAX_MACHINE_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_VECTOR_INT) -#undef DEF_MACHMODE +/* 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_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT) -#define HAVE_MACHINE_MODES +/* 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) -#ifndef NUM_MACHINE_MODES -#define NUM_MACHINE_MODES (int) MAX_MACHINE_MODE -#endif +/* 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) -/* Get the name of mode MODE as a string. */ +/* 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) -extern char *mode_name[]; -#define GET_MODE_NAME(MODE) (mode_name[(int)(MODE)]) +/* Nonzero if MODE is a scalar floating point mode. */ +#define SCALAR_FLOAT_MODE_P(MODE) \ + (GET_MODE_CLASS (MODE) == MODE_FLOAT) -enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC, - MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, MAX_MODE_CLASS}; +/* Get the size in bytes and bits of an object of mode MODE. */ -/* Get the general kind of object that mode MODE represents - (integer, floating, complex, etc.) */ +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)) + +/* 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. */ -extern enum mode_class mode_class[]; -#define GET_MODE_CLASS(MODE) (mode_class[(int)(MODE)]) +extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES]; -/* Get the size in bytes of an object of mode MODE. */ +#define GET_MODE_MASK(MODE) mode_mask_array[MODE] -extern int mode_size[]; -#define GET_MODE_SIZE(MODE) (mode_size[(int)(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. */ -extern int mode_unit_size[]; -#define GET_MODE_UNIT_SIZE(MODE) (mode_unit_size[(int)(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. */ -#define GET_MODE_NUNITS(MODE) \ - (GET_MODE_SIZE ((MODE)) / GET_MODE_UNIT_SIZE ((MODE))) +extern const unsigned char mode_nunits[NUM_MACHINE_MODES]; +#define GET_MODE_NUNITS(MODE) mode_nunits[MODE] -/* Get the size in bits of an object of mode MODE. */ +/* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */ -#define GET_MODE_BITSIZE(MODE) (BITS_PER_UNIT * mode_size[(int)(MODE)]) +extern const unsigned char mode_wider[NUM_MACHINE_MODES]; +#define GET_MODE_WIDER_MODE(MODE) mode_wider[MODE] -/* Get a bitmask containing 1 for all bits in a word - that fit within mode 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. */ -#define GET_MODE_MASK(MODE) \ - ((GET_MODE_BITSIZE (MODE) >= HOST_BITS_PER_INT) \ - ? -1 : ((1 << GET_MODE_BITSIZE (MODE)) - 1)) +extern enum machine_mode mode_for_size (unsigned int, enum mode_class, int); -/* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */ +/* Similar, but find the smallest mode for a given width. */ -extern enum machine_mode mode_wider_mode[]; -#define GET_MODE_WIDER_MODE(MODE) (mode_wider_mode[(int)(MODE)]) +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 (); +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 */