Imported gcc-4.4.3

[msp430-gcc.git] / gcc / machmode.h

diff --git a/gcc/machmode.h b/gcc/machmode.h
index f581cd041bd7bc74c5ca9e458f9ee00f6b33ee1c..7d50b46639788773b9309264421711a96dedfd95 100644 (file)
--- a/gcc/machmode.h
+++ b/gcc/machmode.h
@@ -1,12 +1,12 @@
-/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
-   Copyright (C) 1991, 1993, 1994, 1996, 1998, 1999, 2000, 2001
-   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,
+   2007, 2008  Free Software Foundation, Inc.

 
 This file is part of GCC.
 
 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
 
 This file is part of GCC.
 
 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
+Software Foundation; either version 3, or (at your option) any later

 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -15,42 +15,33 @@ 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
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; 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
 
 /* Make an enum class that gives all the machine modes.  */
 
 #ifndef HAVE_MACHINE_MODES
 #define HAVE_MACHINE_MODES
 
 /* Make an enum class that gives all the machine modes.  */

-
-#define DEF_MACHMODE(SYM, NAME, TYPE, BITSIZE, SIZE, UNIT, WIDER, INNER)  SYM,
-
-enum machine_mode {
-#include "machmode.def"
-MAX_MACHINE_MODE };
-
-#undef DEF_MACHMODE
-
-#ifndef NUM_MACHINE_MODES
-#define NUM_MACHINE_MODES (int) MAX_MACHINE_MODE
-#endif
+#include "insn-modes.h"

 
 /* Get the name of mode MODE as a string.  */
 
 extern const char * const mode_name[NUM_MACHINE_MODES];
 
 /* Get the name of mode MODE as a string.  */
 
 extern const char * const mode_name[NUM_MACHINE_MODES];

-#define GET_MODE_NAME(MODE)            (mode_name[(int) (MODE)])
+#define GET_MODE_NAME(MODE)  mode_name[MODE]

 
 

-enum mode_class { MODE_RANDOM, MODE_INT, MODE_FLOAT, MODE_PARTIAL_INT, MODE_CC,
-                 MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT,
-                 MODE_VECTOR_INT, MODE_VECTOR_FLOAT,
-                 MAX_MODE_CLASS};
+/* Mode classes.  */
+
+#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.)  */
 
 
 /* Get the general kind of object that mode MODE represents
    (integer, floating, complex, etc.)  */
 

-extern const enum mode_class mode_class[NUM_MACHINE_MODES];
-#define GET_MODE_CLASS(MODE)           (mode_class[(int) (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)                  \
 
 /* Nonzero if MODE is an integral mode.  */
 #define INTEGRAL_MODE_P(MODE)                  \


@@ -62,6 +53,7 @@ extern const enum mode_class mode_class[NUM_MACHINE_MODES];
 /* Nonzero if MODE is a floating-point mode.  */
 #define FLOAT_MODE_P(MODE)             \
   (GET_MODE_CLASS (MODE) == MODE_FLOAT \
 /* 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)
 
    || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT \
    || GET_MODE_CLASS (MODE) == MODE_VECTOR_FLOAT)
 


@@ -73,89 +65,199 @@ extern const enum mode_class mode_class[NUM_MACHINE_MODES];
 /* Nonzero if MODE is a vector mode.  */
 #define VECTOR_MODE_P(MODE)                    \
   (GET_MODE_CLASS (MODE) == MODE_VECTOR_INT    \
 /* 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 the size in bytes of an object of mode MODE.  */
-
-extern const unsigned char mode_size[NUM_MACHINE_MODES];
-#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 const unsigned char mode_unit_size[NUM_MACHINE_MODES];
-#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.  */
-
-extern const unsigned short mode_bitsize[NUM_MACHINE_MODES];
-#define GET_MODE_BITSIZE(MODE)  (mode_bitsize[(int) (MODE)])
-
-#endif /* not HAVE_MACHINE_MODES */
-
-#if defined HOST_WIDE_INT && ! defined GET_MODE_MASK
+   || 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_FLOAT                      \
+   || CLASS == MODE_DECIMAL_FLOAT              \
+   || CLASS == MODE_COMPLEX_FLOAT              \
+   || CLASS == MODE_FRACT                      \
+   || CLASS == MODE_UFRACT                     \
+   || CLASS == MODE_ACCUM                      \
+   || CLASS == MODE_UACCUM)
+
+/* 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]
+
+/* 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]
+
+/* 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]

 
 /* Get a bitmask containing 1 for all bits in a word
    that fit within mode MODE.  */
 
 extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES];
 
 
 /* Get a bitmask containing 1 for all bits in a word
    that fit within mode MODE.  */
 
 extern const unsigned HOST_WIDE_INT mode_mask_array[NUM_MACHINE_MODES];
 

-#define GET_MODE_MASK(MODE) mode_mask_array[(int) (MODE)]
-
-extern const enum machine_mode inner_mode_array[NUM_MACHINE_MODES];
+#define GET_MODE_MASK(MODE) mode_mask_array[MODE]

 
 /* Return the mode of the inner elements in a vector.  */
 
 
 /* Return the mode of the inner elements in a vector.  */
 

-#define GET_MODE_INNER(MODE) inner_mode_array[(int) (MODE)]
+extern const unsigned char mode_inner[NUM_MACHINE_MODES];
+#define GET_MODE_INNER(MODE) ((enum machine_mode) mode_inner[MODE])
+
+/* Get the size in bytes of the basic parts of an object of mode MODE.  */
+
+#define GET_MODE_UNIT_SIZE(MODE)               \
+  (GET_MODE_INNER (MODE) == VOIDmode           \
+   ? GET_MODE_SIZE (MODE)                      \
+   : GET_MODE_SIZE (GET_MODE_INNER (MODE)))

 
 

-#endif /* defined (HOST_WIDE_INT) && ! defined GET_MODE_MASK */
+/* Get the number of units in the object.  */

 
 

-#if ! defined GET_MODE_WIDER_MODE || ! defined GET_MODE_ALIGNMENT \
-    || ! defined GET_CLASS_NARROWEST_MODE
+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).  */
 
 
 /* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI).  */
 

-extern const unsigned char mode_wider_mode[NUM_MACHINE_MODES];
-#define GET_MODE_WIDER_MODE(MODE)      ((enum machine_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.  */
 
 
 /* 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 PARAMS ((unsigned int,
-                                               enum mode_class, int));
+extern enum machine_mode mode_for_size (unsigned int, enum mode_class, int);

 
 /* Similar, but find the smallest mode for a given width.  */
 
 
 /* Similar, but find the smallest mode for a given width.  */
 

-extern enum machine_mode smallest_mode_for_size 
-                               PARAMS ((unsigned int, enum mode_class));
+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.  */
 
 
 
 /* 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 PARAMS ((enum machine_mode));
+extern enum machine_mode int_mode_for_mode (enum machine_mode);

 
 /* Find the best mode to use to access a bit field.  */
 
 
 /* Find the best mode to use to access a bit field.  */
 

-extern enum machine_mode get_best_mode PARAMS ((int, int, unsigned int,
-                                               enum machine_mode, int));
+extern enum machine_mode get_best_mode (int, int, unsigned int,
+                                       enum machine_mode, int);

 
 /* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT.  */
 
 
 /* Determine alignment, 1<=result<=BIGGEST_ALIGNMENT.  */
 

-extern unsigned get_mode_alignment PARAMS ((enum machine_mode));
+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.  */
 
 
 #define GET_MODE_ALIGNMENT(MODE) get_mode_alignment (MODE)
 
 /* For each class, get the narrowest mode in that class.  */
 

-extern const enum machine_mode class_narrowest_mode[(int) MAX_MODE_CLASS];
-#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
    and the mode whose class is Pmode and whose size is POINTER_SIZE.  */
 
 /* 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.  */


@@ -164,5 +266,7 @@ extern enum machine_mode byte_mode;
 extern enum machine_mode word_mode;
 extern enum machine_mode ptr_mode;
 
 extern enum machine_mode word_mode;
 extern enum machine_mode ptr_mode;
 

-#endif /* ! defined GET_MODE_WIDER_MODE || ! defined GET_MODE_ALIGNMENT
-         || ! defined GET_CLASS_NARROWEST_MODE */
+/* Target-dependent machine mode initialization - in insn-modes.c.  */
+extern void init_adjust_machine_modes (void);
+
+#endif /* not HAVE_MACHINE_MODES */