-/* 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, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, 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)])
-
-/* Get the size in bytes of an object of mode 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_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_DECIMAL_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_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT)
+
+/* Nonzero if MODE is a decimal floating point mode. */
+#define DECIMAL_FLOAT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_DECIMAL_FLOAT)
+
+/* Nonzero if CLASS modes can be widened. */
+#define CLASS_HAS_WIDER_MODES_P(CLASS) \
+ (CLASS == MODE_INT \
+ || CLASS == MODE_FLOAT \
+ || CLASS == MODE_DECIMAL_FLOAT \
+ || CLASS == MODE_COMPLEX_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]
-extern int mode_size[];
-#define GET_MODE_SIZE(MODE) (mode_size[(int)(MODE)])
+/* Get a bitmask containing 1 for all bits in a word
+ that fit within mode MODE. */
-/* Get the size in bytes of the basic parts of an object of mode MODE. */
+extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES];
-extern int mode_unit_size[];
-#define GET_MODE_UNIT_SIZE(MODE) (mode_unit_size[(int)(MODE)])
+#define GET_MODE_MASK(MODE) mode_mask_array[MODE]
-/* Get the number of units in the object. */
+/* Return the mode of the inner elements in a vector. */
-#define GET_MODE_NUNITS(MODE) \
- ((GET_MODE_UNIT_SIZE ((MODE)) == 0) ? 0 \
- : (GET_MODE_SIZE ((MODE)) / GET_MODE_UNIT_SIZE ((MODE))))
+extern const unsigned char mode_inner[NUM_MACHINE_MODES];
+#define GET_MODE_INNER(MODE) mode_inner[MODE]
-/* Get the size in bits of an object of mode MODE. */
+/* Get the size in bytes of the basic parts of an object of mode MODE. */
-#define GET_MODE_BITSIZE(MODE) (BITS_PER_UNIT * mode_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 a bitmask containing 1 for all bits in a word
- that fit within mode MODE. */
+/* Get the number of units in the object. */
-#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 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]
+
+extern const unsigned char mode_2xwider[NUM_MACHINE_MODES];
+#define GET_MODE_2XWIDER_MODE(MODE) mode_2xwider[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 ();
+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 ();
+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 */
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