diff options
Diffstat (limited to 'contrib/gcc/machmode.h')
| -rw-r--r-- | contrib/gcc/machmode.h | 114 |
1 files changed, 50 insertions, 64 deletions
diff --git a/contrib/gcc/machmode.h b/contrib/gcc/machmode.h index 46247d5..c978c0a 100644 --- a/contrib/gcc/machmode.h +++ b/contrib/gcc/machmode.h @@ -1,5 +1,5 @@ -/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h. - Copyright (C) 1991, 1993, 1994, 1996, 1998, 1999, 2000, 2001 +/* 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. @@ -23,34 +23,26 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #define HAVE_MACHINE_MODES /* Make an enum class that gives all the machine modes. */ - -#define DEF_MACHMODE(SYM, NAME, TYPE, BITSIZE, SIZE, UNIT, WIDER, INNER) SYM, - -enum machine_mode { -#include "machmode.def" -MAX_MACHINE_MODE }; - -#undef DEF_MACHMODE - -#ifndef NUM_MACHINE_MODES -#define NUM_MACHINE_MODES (int) MAX_MACHINE_MODE -#endif +#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[(int) (MODE)]) +#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, - MODE_VECTOR_INT, MODE_VECTOR_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 const enum mode_class mode_class[NUM_MACHINE_MODES]; -#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) \ @@ -84,87 +76,79 @@ extern const enum mode_class mode_class[NUM_MACHINE_MODES]; #define SCALAR_FLOAT_MODE_P(MODE) \ (GET_MODE_CLASS (MODE) == MODE_FLOAT) -/* Get the size in bytes of an object of mode MODE. */ - -extern const unsigned char mode_size[NUM_MACHINE_MODES]; -#define GET_MODE_SIZE(MODE) (mode_size[(int) (MODE)]) - -/* Get the size in bytes of the basic parts of an object of mode MODE. */ - -extern const unsigned char mode_unit_size[NUM_MACHINE_MODES]; -#define GET_MODE_UNIT_SIZE(MODE) (mode_unit_size[(int) (MODE)]) - -/* Get the number of units in the object. */ - -#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)) -extern const unsigned short mode_bitsize[NUM_MACHINE_MODES]; -#define GET_MODE_BITSIZE(MODE) (mode_bitsize[(int) (MODE)]) - -#endif /* not HAVE_MACHINE_MODES */ - -#if defined HOST_WIDE_INT && ! defined GET_MODE_MASK +/* 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[(int) (MODE)] - -extern const enum machine_mode inner_mode_array[NUM_MACHINE_MODES]; +#define GET_MODE_MASK(MODE) mode_mask_array[MODE] /* Return the mode of the inner elements in a vector. */ -#define GET_MODE_INNER(MODE) inner_mode_array[(int) (MODE)] +extern const unsigned char mode_inner[NUM_MACHINE_MODES]; +#define GET_MODE_INNER(MODE) mode_inner[MODE] -#endif /* defined (HOST_WIDE_INT) && ! defined GET_MODE_MASK */ +/* Get the size in bytes of the basic parts of an object of mode MODE. */ -#if ! defined GET_MODE_WIDER_MODE || ! defined GET_MODE_ALIGNMENT \ - || ! defined GET_CLASS_NARROWEST_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_mode[NUM_MACHINE_MODES]; -#define GET_MODE_WIDER_MODE(MODE) ((enum machine_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 PARAMS ((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 - PARAMS ((unsigned int, enum mode_class)); +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 PARAMS ((enum machine_mode)); +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 PARAMS ((int, int, unsigned 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. */ -extern unsigned get_mode_alignment PARAMS ((enum machine_mode)); +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 enum machine_mode class_narrowest_mode[(int) MAX_MODE_CLASS]; -#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 and the mode whose class is Pmode and whose size is POINTER_SIZE. */ @@ -173,5 +157,7 @@ extern enum machine_mode byte_mode; extern enum machine_mode word_mode; extern enum machine_mode ptr_mode; -#endif /* ! defined GET_MODE_WIDER_MODE || ! defined GET_MODE_ALIGNMENT - || ! defined GET_CLASS_NARROWEST_MODE */ +/* Target-dependent machine mode initialization - in insn-modes.c. */ +extern void init_adjust_machine_modes (void); + +#endif /* not HAVE_MACHINE_MODES */ |
