* update_web_docs (PREPROCESS): Rename to WWWPREPROCESS.

[pf3gnuchains/gcc-fork.git] / gcc / machmode.h

diff --git a/gcc/machmode.h b/gcc/machmode.h
index 6521faf..230d8b0 100644 (file)
--- a/gcc/machmode.h
+++ b/gcc/machmode.h
@@ -1,5 +1,6 @@
 /* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
-   Copyright (C) 1991, 93, 94, 96, 98, 99, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1993, 1994, 1996, 1998, 1999, 2000, 2001
+   Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -23,7 +24,7 @@ Boston, MA 02111-1307, USA.  */
 
 /* Make an enum class that gives all the machine modes.  */
 
-#define DEF_MACHMODE(SYM, NAME, TYPE, SIZE, UNIT, WIDER)  SYM,
+#define DEF_MACHMODE(SYM, NAME, TYPE, BITSIZE, SIZE, UNIT, WIDER)  SYM,
 
 enum machine_mode {
 #include "machmode.def"
@@ -41,7 +42,9 @@ extern const char * const 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};
+                 MODE_COMPLEX_INT, MODE_COMPLEX_FLOAT,
+                 MODE_VECTOR_INT, MODE_VECTOR_FLOAT,
+                 MAX_MODE_CLASS};
 
 /* Get the general kind of object that mode MODE represents
    (integer, floating, complex, etc.)  */
@@ -53,26 +56,33 @@ extern const enum mode_class mode_class[];
 #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_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_COMPLEX_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 the size in bytes of an object of mode MODE.  */
 
-extern const int mode_size[];
+extern const unsigned 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 const int mode_unit_size[];
+extern const unsigned int mode_unit_size[];
 #define GET_MODE_UNIT_SIZE(MODE)       (mode_unit_size[(int) (MODE)])
 
 /* Get the number of units in the object.  */
@@ -83,9 +93,12 @@ extern const int mode_unit_size[];
 
 /* Get the size in bits of an object of mode MODE.  */
 
-#define GET_MODE_BITSIZE(MODE)  (BITS_PER_UNIT * mode_size[(int) (MODE)])
+extern const unsigned int mode_bitsize[];
+#define GET_MODE_BITSIZE(MODE)  (mode_bitsize[(int) (MODE)])
+
+#endif /* not HAVE_MACHINE_MODES */
 
-#ifdef HOST_WIDE_INT
+#if defined HOST_WIDE_INT && ! defined GET_MODE_MASK
 
 /* Get a bitmask containing 1 for all bits in a word
    that fit within mode MODE.  */
@@ -94,7 +107,10 @@ extern const unsigned HOST_WIDE_INT mode_mask_array[];
 
 #define GET_MODE_MASK(MODE) mode_mask_array[(int) (MODE)]
 
-#endif /* HOST_WIDE_INT */
+#endif /* defined (HOST_WIDE_INT) && ! defined GET_MODE_MASK */
+
+#if ! defined GET_MODE_WIDER_MODE || ! defined GET_MODE_ALIGNMENT \
+    || ! defined GET_CLASS_NARROWEST_MODE
 
 /* Get the next wider natural mode (eg, QI -> HI -> SI -> DI -> TI).  */
 
@@ -105,12 +121,13 @@ extern const unsigned char mode_wider_mode[];
    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 PARAMS ((unsigned int,
+                                               enum mode_class, int));
 
 /* 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 
+                               PARAMS ((unsigned int, enum mode_class));
 
 
 /* Return an integer mode of the exact same size as the input mode,
@@ -120,13 +137,14 @@ extern enum machine_mode int_mode_for_mode PARAMS ((enum machine_mode));
 
 /* Find the best mode to use to access a bit field.  */
 
-extern enum machine_mode get_best_mode PARAMS ((int, int, int, enum machine_mode, int));
+extern enum machine_mode get_best_mode PARAMS ((int, int, unsigned 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)))
+extern unsigned get_mode_alignment PARAMS ((enum machine_mode));
+
+#define GET_MODE_ALIGNMENT(MODE) get_mode_alignment (MODE)
 
 /* For each class, get the narrowest mode in that class.  */
 
@@ -140,4 +158,5 @@ extern enum machine_mode byte_mode;
 extern enum machine_mode word_mode;
 extern enum machine_mode ptr_mode;
 
-#endif /* not HAVE_MACHINE_MODES */
+#endif /* ! defined GET_MODE_WIDER_MODE || ! defined GET_MODE_ALIGNMENT
+         || ! defined GET_CLASS_NARROWEST_MODE */