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authorYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
committerYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
commitbe8b04496302184c6e8f04d6179f9c3afc50aeb6 (patch)
tree726e2468c0c07add773c0dbd86ab6386844259ae /gcc/machmode.h
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+/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
+ Copyright (C) 1991, 1993, 1994, 1996, 1998 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+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.
+
+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.
+
+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. */
+
+#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. */
+
+/* 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
+# 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 */
+
+/* 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,
+
+enum machine_mode {
+#include "machmode.def"
+
+#ifdef EXTRA_CC_MODES
+ EXTRA_CC_MODES,
+#endif
+MAX_MACHINE_MODE };
+
+#undef DEF_MACHMODE
+
+#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)])
+
+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 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)])
+
+/* 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)
+
+/* 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)])
+
+/* 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)])
+
+/* 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 bits of an object of mode 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. */
+
+extern unsigned HOST_WIDE_INT mode_mask_array[];
+
+#define GET_MODE_MASK(MODE) mode_mask_array[(int) (MODE)]
+
+/* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI). */
+
+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.
+ The value is BLKmode if no other mode is found. */
+
+extern enum machine_mode mode_for_size PROTO((unsigned int, enum mode_class, int));
+
+/* 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));
+
+/* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT. */
+
+#define GET_MODE_ALIGNMENT(MODE) \
+ 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 */