/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1993, 1994, 1996 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. */
-
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#ifndef HAVE_MACHINE_MODES
+#define HAVE_MACHINE_MODES
+
+#include "gansidecl.h"
/* Strictly speaking, this isn't the proper place to include these definitions,
but this file is included by every GCC file.
#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
+
+/* 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" \
+ : sizeof (long) == sizeof (char *) ? "%lx" : "%llx")
+#endif
+
+/* Provide defaults for the way to print a HOST_WIDE_INT
+ in various manners. */
+
+#ifndef HOST_WIDE_INT_PRINT_DEC
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
+#define HOST_WIDE_INT_PRINT_DEC "%d"
+#else
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+#define HOST_WIDE_INT_PRINT_DEC "%ld"
+#else
+#define HOST_WIDE_INT_PRINT_DEC "%lld"
+#endif
+#endif
+#endif
+
+#ifndef HOST_WIDE_INT_PRINT_UNSIGNED
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
+#define HOST_WIDE_INT_PRINT_UNSIGNED "%u"
+#else
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+#define HOST_WIDE_INT_PRINT_UNSIGNED "%lu"
+#else
+#define HOST_WIDE_INT_PRINT_UNSIGNED "%llu"
+#endif
+#endif
+#endif
+
+#ifndef HOST_WIDE_INT_PRINT_HEX
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
+#define HOST_WIDE_INT_PRINT_HEX "0x%x"
+#else
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+#define HOST_WIDE_INT_PRINT_HEX "0x%lx"
+#else
+#define HOST_WIDE_INT_PRINT_HEX "0x%llx"
+#endif
+#endif
+#endif
+
+#ifndef HOST_WIDE_INT_PRINT_DOUBLE_HEX
+#if HOST_BITS_PER_WIDE_INT == 64
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%x%016x"
+#else
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%016lx"
+#else
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%016llx"
+#endif
+#endif
+#else
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%x%08x"
+#else
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%08lx"
+#else
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%08llx"
+#endif
+#endif
+#endif
+#endif
+
/* Make an enum class that gives all the machine modes. */
#define DEF_MACHMODE(SYM, NAME, TYPE, SIZE, UNIT, WIDER) SYM,
#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 };
+ MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT, MAX_MODE_CLASS};
/* 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)])
+#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_INT \
+ || GET_MODE_CLASS (MODE) == MODE_PARTIAL_INT \
+ || GET_MODE_CLASS (MODE) == MODE_COMPLEX_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 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. */
#define GET_MODE_NUNITS(MODE) \
- (GET_MODE_SIZE ((MODE)) / GET_MODE_UNIT_SIZE ((MODE)))
+ ((GET_MODE_UNIT_SIZE ((MODE)) == 0) ? 0 \
+ : (GET_MODE_SIZE ((MODE)) / GET_MODE_UNIT_SIZE ((MODE))))
/* 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)])
/* 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_INT) \
- ? -1 : ((1 << GET_MODE_BITSIZE (MODE)) - 1))
+ ((GET_MODE_BITSIZE (MODE) >= HOST_BITS_PER_WIDE_INT) \
+ ?(HOST_WIDE_INT) ~0 : (((HOST_WIDE_INT) 1 << GET_MODE_BITSIZE (MODE)) - 1))
/* 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)])
+#define GET_MODE_WIDER_MODE(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.
+ The value is BLKmode if no other mode is found. */
+
+extern enum machine_mode mode_for_size PROTO((unsigned int, enum mode_class, int));
/* 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 PROTO((int, int, int, enum machine_mode, int));
/* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */
MIN (BIGGEST_ALIGNMENT, \
MAX (1, (GET_MODE_UNIT_SIZE (MODE) * BITS_PER_UNIT)))
+/* 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 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;
+
#endif /* not HAVE_MACHINE_MODES */
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