1 /* Machine mode definitions for GCC; included by rtl.h and tree.h. 2 Copyright (C) 1991, 1993, 1994, 1996, 1998, 1999, 2000, 2001, 2003, 3 2007, 2008 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef HAVE_MACHINE_MODES 22 #define HAVE_MACHINE_MODES 23 24 /* Make an enum class that gives all the machine modes. */ 25 #include "insn-modes.h" 26 27 /* Get the name of mode MODE as a string. */ 28 29 extern const char * const mode_name[NUM_MACHINE_MODES]; 30 #define GET_MODE_NAME(MODE) mode_name[MODE] 31 32 /* Mode classes. */ 33 34 #include "mode-classes.def" 35 #define DEF_MODE_CLASS(M) M 36 enum mode_class { MODE_CLASSES, MAX_MODE_CLASS }; 37 #undef DEF_MODE_CLASS 38 #undef MODE_CLASSES 39 40 /* Get the general kind of object that mode MODE represents 41 (integer, floating, complex, etc.) */ 42 43 extern const unsigned char mode_class[NUM_MACHINE_MODES]; 44 #define GET_MODE_CLASS(MODE) mode_class[MODE] 45 46 /* Nonzero if MODE is an integral mode. */ 47 #define INTEGRAL_MODE_P(MODE) \ 48 (GET_MODE_CLASS (MODE) == MODE_INT \ 49 || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT \ 50 || GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT \ 51 || GET_MODE_CLASS (MODE) == MODE_VECTOR_INT) 52 53 /* Nonzero if MODE is a floating-point mode. */ 54 #define FLOAT_MODE_P(MODE) \ 55 (GET_MODE_CLASS (MODE) == MODE_FLOAT \ 56 || GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT \ 57 || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT \ 58 || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT) 59 60 /* Nonzero if MODE is a complex mode. */ 61 #define COMPLEX_MODE_P(MODE) \ 62 (GET_MODE_CLASS (MODE) == MODE_COMPLEX_INT \ 63 || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT) 64 65 /* Nonzero if MODE is a vector mode. */ 66 #define VECTOR_MODE_P(MODE) \ 67 (GET_MODE_CLASS (MODE) == MODE_VECTOR_INT \ 68 || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT \ 69 || GET_MODE_CLASS (MODE) == MODE_VECTOR_FRACT \ 70 || GET_MODE_CLASS (MODE) == MODE_VECTOR_UFRACT \ 71 || GET_MODE_CLASS (MODE) == MODE_VECTOR_ACCUM \ 72 || GET_MODE_CLASS (MODE) == MODE_VECTOR_UACCUM) 73 74 /* Nonzero if MODE is a scalar integral mode. */ 75 #define SCALAR_INT_MODE_P(MODE) \ 76 (GET_MODE_CLASS (MODE) == MODE_INT \ 77 || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT) 78 79 /* Nonzero if MODE is a scalar floating point mode. */ 80 #define SCALAR_FLOAT_MODE_P(MODE) \ 81 (GET_MODE_CLASS (MODE) == MODE_FLOAT \ 82 || GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT) 83 84 /* Nonzero if MODE is a decimal floating point mode. */ 85 #define DECIMAL_FLOAT_MODE_P(MODE) \ 86 (GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT) 87 88 /* Nonzero if MODE is a scalar fract mode. */ 89 #define SCALAR_FRACT_MODE_P(MODE) \ 90 (GET_MODE_CLASS (MODE) == MODE_FRACT) 91 92 /* Nonzero if MODE is a scalar ufract mode. */ 93 #define SCALAR_UFRACT_MODE_P(MODE) \ 94 (GET_MODE_CLASS (MODE) == MODE_UFRACT) 95 96 /* Nonzero if MODE is a scalar fract or ufract mode. */ 97 #define ALL_SCALAR_FRACT_MODE_P(MODE) \ 98 (SCALAR_FRACT_MODE_P (MODE) || SCALAR_UFRACT_MODE_P (MODE)) 99 100 /* Nonzero if MODE is a scalar accum mode. */ 101 #define SCALAR_ACCUM_MODE_P(MODE) \ 102 (GET_MODE_CLASS (MODE) == MODE_ACCUM) 103 104 /* Nonzero if MODE is a scalar uaccum mode. */ 105 #define SCALAR_UACCUM_MODE_P(MODE) \ 106 (GET_MODE_CLASS (MODE) == MODE_UACCUM) 107 108 /* Nonzero if MODE is a scalar accum or uaccum mode. */ 109 #define ALL_SCALAR_ACCUM_MODE_P(MODE) \ 110 (SCALAR_ACCUM_MODE_P (MODE) || SCALAR_UACCUM_MODE_P (MODE)) 111 112 /* Nonzero if MODE is a scalar fract or accum mode. */ 113 #define SIGNED_SCALAR_FIXED_POINT_MODE_P(MODE) \ 114 (SCALAR_FRACT_MODE_P (MODE) || SCALAR_ACCUM_MODE_P (MODE)) 115 116 /* Nonzero if MODE is a scalar ufract or uaccum mode. */ 117 #define UNSIGNED_SCALAR_FIXED_POINT_MODE_P(MODE) \ 118 (SCALAR_UFRACT_MODE_P (MODE) || SCALAR_UACCUM_MODE_P (MODE)) 119 120 /* Nonzero if MODE is a scalar fract, ufract, accum or uaccum mode. */ 121 #define ALL_SCALAR_FIXED_POINT_MODE_P(MODE) \ 122 (SIGNED_SCALAR_FIXED_POINT_MODE_P (MODE) \ 123 || UNSIGNED_SCALAR_FIXED_POINT_MODE_P (MODE)) 124 125 /* Nonzero if MODE is a scalar/vector fract mode. */ 126 #define FRACT_MODE_P(MODE) \ 127 (GET_MODE_CLASS (MODE) == MODE_FRACT \ 128 || GET_MODE_CLASS (MODE) == MODE_VECTOR_FRACT) 129 130 /* Nonzero if MODE is a scalar/vector ufract mode. */ 131 #define UFRACT_MODE_P(MODE) \ 132 (GET_MODE_CLASS (MODE) == MODE_UFRACT \ 133 || GET_MODE_CLASS (MODE) == MODE_VECTOR_UFRACT) 134 135 /* Nonzero if MODE is a scalar/vector fract or ufract mode. */ 136 #define ALL_FRACT_MODE_P(MODE) \ 137 (FRACT_MODE_P (MODE) || UFRACT_MODE_P (MODE)) 138 139 /* Nonzero if MODE is a scalar/vector accum mode. */ 140 #define ACCUM_MODE_P(MODE) \ 141 (GET_MODE_CLASS (MODE) == MODE_ACCUM \ 142 || GET_MODE_CLASS (MODE) == MODE_VECTOR_ACCUM) 143 144 /* Nonzero if MODE is a scalar/vector uaccum mode. */ 145 #define UACCUM_MODE_P(MODE) \ 146 (GET_MODE_CLASS (MODE) == MODE_UACCUM \ 147 || GET_MODE_CLASS (MODE) == MODE_VECTOR_UACCUM) 148 149 /* Nonzero if MODE is a scalar/vector accum or uaccum mode. */ 150 #define ALL_ACCUM_MODE_P(MODE) \ 151 (ACCUM_MODE_P (MODE) || UACCUM_MODE_P (MODE)) 152 153 /* Nonzero if MODE is a scalar/vector fract or accum mode. */ 154 #define SIGNED_FIXED_POINT_MODE_P(MODE) \ 155 (FRACT_MODE_P (MODE) || ACCUM_MODE_P (MODE)) 156 157 /* Nonzero if MODE is a scalar/vector ufract or uaccum mode. */ 158 #define UNSIGNED_FIXED_POINT_MODE_P(MODE) \ 159 (UFRACT_MODE_P (MODE) || UACCUM_MODE_P (MODE)) 160 161 /* Nonzero if MODE is a scalar/vector fract, ufract, accum or uaccum mode. */ 162 #define ALL_FIXED_POINT_MODE_P(MODE) \ 163 (SIGNED_FIXED_POINT_MODE_P (MODE) \ 164 || UNSIGNED_FIXED_POINT_MODE_P (MODE)) 165 166 /* Nonzero if CLASS modes can be widened. */ 167 #define CLASS_HAS_WIDER_MODES_P(CLASS) \ 168 (CLASS == MODE_INT \ 169 || CLASS == MODE_FLOAT \ 170 || CLASS == MODE_DECIMAL_FLOAT \ 171 || CLASS == MODE_COMPLEX_FLOAT \ 172 || CLASS == MODE_FRACT \ 173 || CLASS == MODE_UFRACT \ 174 || CLASS == MODE_ACCUM \ 175 || CLASS == MODE_UACCUM) 176 177 /* Get the size in bytes and bits of an object of mode MODE. */ 178 179 extern CONST_MODE_SIZE unsigned char mode_size[NUM_MACHINE_MODES]; 180 #define GET_MODE_SIZE(MODE) ((unsigned short) mode_size[MODE]) 181 #define GET_MODE_BITSIZE(MODE) ((unsigned short) (GET_MODE_SIZE (MODE) * BITS_PER_UNIT)) 182 183 /* Get the number of value bits of an object of mode MODE. */ 184 extern const unsigned short mode_precision[NUM_MACHINE_MODES]; 185 #define GET_MODE_PRECISION(MODE) mode_precision[MODE] 186 187 /* Get the number of integral bits of an object of mode MODE. */ 188 extern CONST_MODE_IBIT unsigned char mode_ibit[NUM_MACHINE_MODES]; 189 #define GET_MODE_IBIT(MODE) mode_ibit[MODE] 190 191 /* Get the number of fractional bits of an object of mode MODE. */ 192 extern CONST_MODE_FBIT unsigned char mode_fbit[NUM_MACHINE_MODES]; 193 #define GET_MODE_FBIT(MODE) mode_fbit[MODE] 194 195 /* Get a bitmask containing 1 for all bits in a word 196 that fit within mode MODE. */ 197 198 extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES]; 199 200 #define GET_MODE_MASK(MODE) mode_mask_array[MODE] 201 202 /* Return the mode of the inner elements in a vector. */ 203 204 extern const unsigned char mode_inner[NUM_MACHINE_MODES]; 205 #define GET_MODE_INNER(MODE) ((enum machine_mode) mode_inner[MODE]) 206 207 /* Get the size in bytes of the basic parts of an object of mode MODE. */ 208 209 #define GET_MODE_UNIT_SIZE(MODE) \ 210 (GET_MODE_INNER (MODE) == VOIDmode \ 211 ? GET_MODE_SIZE (MODE) \ 212 : GET_MODE_SIZE (GET_MODE_INNER (MODE))) 213 214 /* Get the number of units in the object. */ 215 216 extern const unsigned char mode_nunits[NUM_MACHINE_MODES]; 217 #define GET_MODE_NUNITS(MODE) mode_nunits[MODE] 218 219 /* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */ 220 221 extern const unsigned char mode_wider[NUM_MACHINE_MODES]; 222 #define GET_MODE_WIDER_MODE(MODE) mode_wider[MODE] 223 224 extern const unsigned char mode_2xwider[NUM_MACHINE_MODES]; 225 #define GET_MODE_2XWIDER_MODE(MODE) mode_2xwider[MODE] 226 227 /* Return the mode for data of a given size SIZE and mode class CLASS. 228 If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE. 229 The value is BLKmode if no other mode is found. */ 230 231 extern enum machine_mode mode_for_size (unsigned int, enum mode_class, int); 232 233 /* Similar, but find the smallest mode for a given width. */ 234 235 extern enum machine_mode smallest_mode_for_size (unsigned int, 236 enum mode_class); 237 238 239 /* Return an integer mode of the exact same size as the input mode, 240 or BLKmode on failure. */ 241 242 extern enum machine_mode int_mode_for_mode (enum machine_mode); 243 244 /* Find the best mode to use to access a bit field. */ 245 246 extern enum machine_mode get_best_mode (int, int, unsigned int, 247 enum machine_mode, int); 248 249 /* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */ 250 251 extern CONST_MODE_BASE_ALIGN unsigned char mode_base_align[NUM_MACHINE_MODES]; 252 253 extern unsigned get_mode_alignment (enum machine_mode); 254 255 #define GET_MODE_ALIGNMENT(MODE) get_mode_alignment (MODE) 256 257 /* For each class, get the narrowest mode in that class. */ 258 259 extern const unsigned char class_narrowest_mode[MAX_MODE_CLASS]; 260 #define GET_CLASS_NARROWEST_MODE(CLASS) class_narrowest_mode[CLASS] 261 262 /* Define the integer modes whose sizes are BITS_PER_UNIT and BITS_PER_WORD 263 and the mode whose class is Pmode and whose size is POINTER_SIZE. */ 264 265 extern enum machine_mode byte_mode; 266 extern enum machine_mode word_mode; 267 extern enum machine_mode ptr_mode; 268 269 /* Target-dependent machine mode initialization - in insn-modes.c. */ 270 extern void init_adjust_machine_modes (void); 271 272 #endif /* not HAVE_MACHINE_MODES */ 273
