| /* 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 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 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, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #ifndef HAVE_MACHINE_MODES |
| #define HAVE_MACHINE_MODES |
| |
| /* Make an enum class that gives all the machine modes. */ |
| #include "insn-modes.h" |
| |
| /* Get the name of mode MODE as a string. */ |
| |
| extern const char * const mode_name[NUM_MACHINE_MODES]; |
| #define GET_MODE_NAME(MODE) mode_name[MODE] |
| |
| /* Mode classes. */ |
| |
| #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 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_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_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT) |
| |
| /* 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) |
| |
| /* 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) |
| |
| /* 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) |
| |
| /* Nonzero if MODE is a scalar floating point mode. */ |
| #define SCALAR_FLOAT_MODE_P(MODE) \ |
| (GET_MODE_CLASS (MODE) == MODE_FLOAT) |
| |
| /* Get the size in bytes and 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)) |
| |
| /* 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 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 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 (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 (int, int, unsigned int, |
| enum machine_mode, int); |
| |
| /* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */ |
| |
| 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 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 |
| 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 */ |