/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
- Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1993, 1994, 1996, 1998 Free Software Foundation, Inc.
This file is part of GNU CC.
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. */
-
-
-/* Add prototype support. */
-#ifndef PROTO
-#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
-#define PROTO(ARGS) ARGS
-#else
-#define PROTO(ARGS) ()
-#endif
-#endif
+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.
-
- 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
+ but this file is included by every GCC file. */
/* 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
+# ifdef HAVE_PRINTF_PTR
+# define HOST_PTR_PRINTF "%p"
+# else
+# define HOST_PTR_PRINTF \
+ (sizeof (int) == sizeof (char *) ? "%x" \
+ : sizeof (long) == sizeof (char *) ? "%lx" : "%llx")
+# endif
+#endif /* ! HOST_PTR_PRINTF */
/* Make an enum class that gives all the machine modes. */
#undef DEF_MACHMODE
-#define HAVE_MACHINE_MODES
-
#ifndef NUM_MACHINE_MODES
#define NUM_MACHINE_MODES (int) MAX_MACHINE_MODE
#endif
/* Get the name of mode MODE as a string. */
extern char *mode_name[];
-#define GET_MODE_NAME(MODE) (mode_name[(int)(MODE)])
+#define GET_MODE_NAME(MODE) (mode_name[(int) (MODE)])
enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC,
MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, MAX_MODE_CLASS};
(integer, floating, complex, etc.) */
extern enum mode_class mode_class[];
-#define GET_MODE_CLASS(MODE) (mode_class[(int)(MODE)])
+#define GET_MODE_CLASS(MODE) (mode_class[(int) (MODE)])
/* Nonzero if MODE is an integral mode. */
#define INTEGRAL_MODE_P(MODE) \
(GET_MODE_CLASS (MODE) == MODE_FLOAT \
|| GET_MODE_CLASS (MODE) == MODE_COMPLEX_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)
+
/* Get the size in bytes of an object of mode MODE. */
extern int mode_size[];
-#define GET_MODE_SIZE(MODE) (mode_size[(int)(MODE)])
+#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 int mode_unit_size[];
-#define GET_MODE_UNIT_SIZE(MODE) (mode_unit_size[(int)(MODE)])
+#define GET_MODE_UNIT_SIZE(MODE) (mode_unit_size[(int) (MODE)])
/* Get the number of units in the object. */
/* Get the size in bits of an object of mode MODE. */
-#define GET_MODE_BITSIZE(MODE) (BITS_PER_UNIT * mode_size[(int)(MODE)])
+#define GET_MODE_BITSIZE(MODE) (BITS_PER_UNIT * mode_size[(int) (MODE)])
+
+#ifdef HOST_WIDE_INT
/* Get a bitmask containing 1 for all bits in a word
that fit within mode MODE. */
-#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 unsigned HOST_WIDE_INT mode_mask_array[];
+
+#define GET_MODE_MASK(MODE) mode_mask_array[(int) (MODE)]
+
+#endif /* HOST_WIDE_INT */
/* 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 unsigned char mode_wider_mode[];
+#define GET_MODE_WIDER_MODE(MODE) ((enum machine_mode)mode_wider_mode[(int) (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.
extern enum machine_mode mode_for_size PROTO((unsigned int, enum mode_class, int));
+/* Similar, but find the smallest mode for a given width. */
+
+extern enum machine_mode smallest_mode_for_size PROTO((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 PROTO((enum machine_mode));
+
/* Find the best mode to use to access a bit field. */
extern enum machine_mode get_best_mode PROTO((int, int, int, enum machine_mode, int));
/* 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)]
+#define GET_CLASS_NARROWEST_MODE(CLASS) class_narrowest_mode[(int) (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. */
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