-/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
- Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc.
+/* Machine mode definitions for GCC; included by rtl.h and tree.h.
+ Copyright (C) 1991-2015 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 3, 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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef HAVE_MACHINE_MODES
#define HAVE_MACHINE_MODES
-#include "gansidecl.h"
+/* Make an enum class that gives all the machine modes. */
+#include "insn-modes.h"
-/* Strictly speaking, this isn't the proper place to include these definitions,
- but this file is included by every GCC file.
+/* Get the name of mode MODE as a string. */
- 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. */
+extern const char * const mode_name[NUM_MACHINE_MODES];
+#define GET_MODE_NAME(MODE) mode_name[MODE]
-#undef MIN
-#undef MAX
+/* Mode classes. */
-#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
-#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
+#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
-/* Find the largest host integer type and set its size and type. */
+/* Get the general kind of object that mode MODE represents
+ (integer, floating, complex, etc.) */
-#ifndef HOST_BITS_PER_WIDE_INT
+extern const unsigned char mode_class[NUM_MACHINE_MODES];
+#define GET_MODE_CLASS(MODE) ((enum mode_class) mode_class[MODE])
-#if HOST_BITS_PER_LONG > HOST_BITS_PER_INT
-#define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG
-#define HOST_WIDE_INT long
+/* 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 \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_FRACT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_UFRACT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_ACCUM \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_UACCUM)
+
+/* 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 MODE is a scalar fract mode. */
+#define SCALAR_FRACT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_FRACT)
+
+/* Nonzero if MODE is a scalar ufract mode. */
+#define SCALAR_UFRACT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_UFRACT)
+
+/* Nonzero if MODE is a scalar fract or ufract mode. */
+#define ALL_SCALAR_FRACT_MODE_P(MODE) \
+ (SCALAR_FRACT_MODE_P (MODE) || SCALAR_UFRACT_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar accum mode. */
+#define SCALAR_ACCUM_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_ACCUM)
+
+/* Nonzero if MODE is a scalar uaccum mode. */
+#define SCALAR_UACCUM_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_UACCUM)
+
+/* Nonzero if MODE is a scalar accum or uaccum mode. */
+#define ALL_SCALAR_ACCUM_MODE_P(MODE) \
+ (SCALAR_ACCUM_MODE_P (MODE) || SCALAR_UACCUM_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar fract or accum mode. */
+#define SIGNED_SCALAR_FIXED_POINT_MODE_P(MODE) \
+ (SCALAR_FRACT_MODE_P (MODE) || SCALAR_ACCUM_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar ufract or uaccum mode. */
+#define UNSIGNED_SCALAR_FIXED_POINT_MODE_P(MODE) \
+ (SCALAR_UFRACT_MODE_P (MODE) || SCALAR_UACCUM_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar fract, ufract, accum or uaccum mode. */
+#define ALL_SCALAR_FIXED_POINT_MODE_P(MODE) \
+ (SIGNED_SCALAR_FIXED_POINT_MODE_P (MODE) \
+ || UNSIGNED_SCALAR_FIXED_POINT_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar/vector fract mode. */
+#define FRACT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_FRACT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_FRACT)
+
+/* Nonzero if MODE is a scalar/vector ufract mode. */
+#define UFRACT_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_UFRACT \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_UFRACT)
+
+/* Nonzero if MODE is a scalar/vector fract or ufract mode. */
+#define ALL_FRACT_MODE_P(MODE) \
+ (FRACT_MODE_P (MODE) || UFRACT_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar/vector accum mode. */
+#define ACCUM_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_ACCUM \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_ACCUM)
+
+/* Nonzero if MODE is a scalar/vector uaccum mode. */
+#define UACCUM_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_UACCUM \
+ || GET_MODE_CLASS (MODE) == MODE_VECTOR_UACCUM)
+
+/* Nonzero if MODE is a scalar/vector accum or uaccum mode. */
+#define ALL_ACCUM_MODE_P(MODE) \
+ (ACCUM_MODE_P (MODE) || UACCUM_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar/vector fract or accum mode. */
+#define SIGNED_FIXED_POINT_MODE_P(MODE) \
+ (FRACT_MODE_P (MODE) || ACCUM_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar/vector ufract or uaccum mode. */
+#define UNSIGNED_FIXED_POINT_MODE_P(MODE) \
+ (UFRACT_MODE_P (MODE) || UACCUM_MODE_P (MODE))
+
+/* Nonzero if MODE is a scalar/vector fract, ufract, accum or uaccum mode. */
+#define ALL_FIXED_POINT_MODE_P(MODE) \
+ (SIGNED_FIXED_POINT_MODE_P (MODE) \
+ || UNSIGNED_FIXED_POINT_MODE_P (MODE))
+
+/* Nonzero if CLASS modes can be widened. */
+#define CLASS_HAS_WIDER_MODES_P(CLASS) \
+ (CLASS == MODE_INT \
+ || CLASS == MODE_PARTIAL_INT \
+ || CLASS == MODE_FLOAT \
+ || CLASS == MODE_DECIMAL_FLOAT \
+ || CLASS == MODE_COMPLEX_FLOAT \
+ || CLASS == MODE_FRACT \
+ || CLASS == MODE_UFRACT \
+ || CLASS == MODE_ACCUM \
+ || CLASS == MODE_UACCUM)
+
+#define POINTER_BOUNDS_MODE_P(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_POINTER_BOUNDS)
+
+/* Get the size in bytes and bits of an object of mode MODE. */
+
+extern CONST_MODE_SIZE unsigned char mode_size[NUM_MACHINE_MODES];
+#if GCC_VERSION >= 4001
+#define GET_MODE_SIZE(MODE) \
+ ((unsigned short) (__builtin_constant_p (MODE) \
+ ? mode_size_inline (MODE) : mode_size[MODE]))
#else
-#define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_INT
-#define HOST_WIDE_INT int
+#define GET_MODE_SIZE(MODE) ((unsigned short) mode_size[MODE])
#endif
+#define GET_MODE_BITSIZE(MODE) \
+ ((unsigned short) (GET_MODE_SIZE (MODE) * BITS_PER_UNIT))
-#endif
+/* 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]
-/* Provide a default way to print an address in hex via printf. */
+/* Get the number of integral bits of an object of mode MODE. */
+extern CONST_MODE_IBIT unsigned char mode_ibit[NUM_MACHINE_MODES];
+#define GET_MODE_IBIT(MODE) mode_ibit[MODE]
-#ifndef HOST_PTR_PRINTF
-#define HOST_PTR_PRINTF \
- (sizeof (int) == sizeof (char *) ? "%x" \
- : sizeof (long) == sizeof (char *) ? "%lx" : "%llx")
-#endif
+/* Get the number of fractional bits of an object of mode MODE. */
+extern CONST_MODE_FBIT unsigned char mode_fbit[NUM_MACHINE_MODES];
+#define GET_MODE_FBIT(MODE) mode_fbit[MODE]
-/* Provide defaults for the way to print a HOST_WIDE_INT
- in various manners. */
+/* Get a bitmask containing 1 for all bits in a word
+ that fit within mode MODE. */
-#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
+extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES];
-#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
+#define GET_MODE_MASK(MODE) mode_mask_array[MODE]
-#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
+/* Return the mode of the inner elements in a vector. */
-#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"
+extern const unsigned char mode_inner[NUM_MACHINE_MODES];
+#if GCC_VERSION >= 4001
+#define GET_MODE_INNER(MODE) \
+ ((machine_mode) (__builtin_constant_p (MODE) \
+ ? mode_inner_inline (MODE) : mode_inner[MODE]))
#else
-#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%08llx"
-#endif
-#endif
-#endif
+#define GET_MODE_INNER(MODE) ((machine_mode) mode_inner[MODE])
#endif
-/* Make an enum class that gives all the machine modes. */
+/* Get the size in bytes or bites of the basic parts of an
+ object of mode MODE. */
-#define DEF_MACHMODE(SYM, NAME, TYPE, SIZE, UNIT, WIDER) SYM,
+#define GET_MODE_UNIT_SIZE(MODE) \
+ (GET_MODE_INNER (MODE) == VOIDmode \
+ ? GET_MODE_SIZE (MODE) \
+ : GET_MODE_SIZE (GET_MODE_INNER (MODE)))
-enum machine_mode {
-#include "machmode.def"
+#define GET_MODE_UNIT_BITSIZE(MODE) \
+ ((unsigned short) (GET_MODE_UNIT_SIZE (MODE) * BITS_PER_UNIT))
-#ifdef EXTRA_CC_MODES
- EXTRA_CC_MODES,
-#endif
-MAX_MACHINE_MODE };
+#define GET_MODE_UNIT_PRECISION(MODE) \
+ (GET_MODE_INNER (MODE) == VOIDmode \
+ ? GET_MODE_PRECISION (MODE) \
+ : GET_MODE_PRECISION (GET_MODE_INNER (MODE)))
-#undef DEF_MACHMODE
+/* Get the number of units in the object. */
-#ifndef NUM_MACHINE_MODES
-#define NUM_MACHINE_MODES (int) MAX_MACHINE_MODE
+extern const unsigned char mode_nunits[NUM_MACHINE_MODES];
+#if GCC_VERSION >= 4001
+#define GET_MODE_NUNITS(MODE) \
+ ((unsigned char) (__builtin_constant_p (MODE) \
+ ? mode_nunits_inline (MODE) : mode_nunits[MODE]))
+#else
+#define GET_MODE_NUNITS(MODE) mode_nunits[MODE]
#endif
-/* Get the name of mode MODE as a string. */
-
-extern char *mode_name[];
-#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};
+/* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */
-/* Get the general kind of object that mode MODE represents
- (integer, floating, complex, etc.) */
+extern const unsigned char mode_wider[NUM_MACHINE_MODES];
+#define GET_MODE_WIDER_MODE(MODE) ((machine_mode) mode_wider[MODE])
-extern enum mode_class mode_class[];
-#define GET_MODE_CLASS(MODE) (mode_class[(int) (MODE)])
+/* For scalars, this is a mode with twice the precision. For vectors,
+ this is a mode with the same inner mode but with twice the elements. */
+extern const unsigned char mode_2xwider[NUM_MACHINE_MODES];
+#define GET_MODE_2XWIDER_MODE(MODE) ((machine_mode) mode_2xwider[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)
+/* 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. */
-/* 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)
+extern machine_mode mode_for_size (unsigned int, enum mode_class, int);
-/* Get the size in bytes of an object of mode MODE. */
+/* Similar, but find the smallest mode for a given width. */
-extern int mode_size[];
-#define GET_MODE_SIZE(MODE) (mode_size[(int) (MODE)])
+extern machine_mode smallest_mode_for_size (unsigned int,
+ enum mode_class);
-/* 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)])
+/* Return an integer mode of the exact same size as the input mode,
+ or BLKmode on failure. */
-/* Get the number of units in the object. */
+extern machine_mode int_mode_for_mode (machine_mode);
-#define GET_MODE_NUNITS(MODE) \
- ((GET_MODE_UNIT_SIZE ((MODE)) == 0) ? 0 \
- : (GET_MODE_SIZE ((MODE)) / GET_MODE_UNIT_SIZE ((MODE))))
+extern machine_mode bitwise_mode_for_mode (machine_mode);
-/* Get the size in bits of an object of mode MODE. */
+/* Return a mode that is suitable for representing a vector,
+ or BLKmode on failure. */
-#define GET_MODE_BITSIZE(MODE) (BITS_PER_UNIT * mode_size[(int) (MODE)])
+extern machine_mode mode_for_vector (machine_mode, unsigned);
-/* Get a bitmask containing 1 for all bits in a word
- that fit within mode MODE. */
+/* A class for iterating through possible bitfield modes. */
+class bit_field_mode_iterator
+{
+public:
+ bit_field_mode_iterator (HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, HOST_WIDE_INT,
+ unsigned int, bool);
+ bool next_mode (machine_mode *);
+ bool prefer_smaller_modes ();
-#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))
+private:
+ machine_mode m_mode;
+ /* We use signed values here because the bit position can be negative
+ for invalid input such as gcc.dg/pr48335-8.c. */
+ HOST_WIDE_INT m_bitsize;
+ HOST_WIDE_INT m_bitpos;
+ HOST_WIDE_INT m_bitregion_start;
+ HOST_WIDE_INT m_bitregion_end;
+ unsigned int m_align;
+ bool m_volatilep;
+ int m_count;
+};
-/* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */
+/* Find the best mode to use to access a bit field. */
-extern enum machine_mode mode_wider_mode[];
-#define GET_MODE_WIDER_MODE(MODE) (mode_wider_mode[(int) (MODE)])
+extern machine_mode get_best_mode (int, int,
+ unsigned HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT,
+ unsigned int,
+ machine_mode, bool);
-/* 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. */
+/* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */
-extern enum machine_mode mode_for_size PROTO((unsigned int, enum mode_class, int));
+extern CONST_MODE_BASE_ALIGN unsigned char mode_base_align[NUM_MACHINE_MODES];
-/* Find the best mode to use to access a bit field. */
+extern unsigned get_mode_alignment (machine_mode);
-extern enum machine_mode get_best_mode PROTO((int, int, int, enum machine_mode, int));
+#define GET_MODE_ALIGNMENT(MODE) get_mode_alignment (MODE)
-/* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */
+/* Get the precision of the mode or its inner mode if it has one. */
-#define GET_MODE_ALIGNMENT(MODE) \
- MIN (BIGGEST_ALIGNMENT, \
- MAX (1, (GET_MODE_UNIT_SIZE (MODE) * BITS_PER_UNIT)))
+extern unsigned int element_precision (machine_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) \
+ ((machine_mode) 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. */
-extern enum machine_mode byte_mode;
-extern enum machine_mode word_mode;
-extern enum machine_mode ptr_mode;
+extern machine_mode byte_mode;
+extern machine_mode word_mode;
+extern machine_mode ptr_mode;
+
+/* Target-dependent machine mode initialization - in insn-modes.c. */
+extern void init_adjust_machine_modes (void);
+
+#define TRULY_NOOP_TRUNCATION_MODES_P(MODE1, MODE2) \
+ TRULY_NOOP_TRUNCATION (GET_MODE_PRECISION (MODE1), \
+ GET_MODE_PRECISION (MODE2))
+
+#define HWI_COMPUTABLE_MODE_P(MODE) \
+ (SCALAR_INT_MODE_P (MODE) \
+ && GET_MODE_PRECISION (MODE) <= HOST_BITS_PER_WIDE_INT)
+
+typedef struct {
+ /* These parts are initailized by genmodes output */
+ unsigned int bitsize;
+ machine_mode m;
+ /* RID_* is RID_INTN_BASE + index into this array */
+} int_n_data_t;
+
+/* This is also in tree.h. genmodes.c guarantees the're sorted from
+ smallest bitsize to largest bitsize. */
+extern bool int_n_enabled_p[NUM_INT_N_ENTS];
+extern const int_n_data_t int_n_data[NUM_INT_N_ENTS];
#endif /* not HAVE_MACHINE_MODES */
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