Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the

non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.

1 files changed, 171 insertions, 0 deletions

diff --git a/contrib/gcc/machmode.h b/contrib/gcc/machmode.h
new file mode 100644
index 0000000..85b5543
--- /dev/null
+++ b/contrib/gcc/machmode.h
@@ -0,0 +1,171 @@
+/* Machine mode definitions for GNU C-Compiler; included by rtl.h and tree.h.
+   Copyright (C) 1991, 1993, 1994  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.  */
+
+
+/* Add prototype support.  */
+#ifndef PROTO
+#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
+#define PROTO(ARGS) ARGS
+#else
+#define PROTO(ARGS) ()
+#endif
+#endif
+
+#ifndef HAVE_MACHINE_MODES
+
+/* Strictly speaking, this isn't the proper place to include these definitions,
+   but this file is included by every GCC file.
+
+   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.  */
+
+#undef MIN
+#undef MAX
+
+#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" : "%lx"
+#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
+
+#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)])
+
+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)
+
+/* 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.  */
+
+#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))
+
+/* 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)])
+
+/* 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 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 */