/* HOST_WIDE_INT definitions for the GNU compiler.
- Copyright (C) 1998, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1998, 2002, 2004, 2008, 2009 Free Software Foundation, Inc.
- This file is part of GNU CC.
+ This file is part of GCC.
Provide definitions for macros which depend on HOST_BITS_PER_INT
- and HOST_BITS_PER_LONG. */
+ and HOST_BITS_PER_LONG. */
-#ifndef __HWINT_H__
-#define __HWINT_H__
+#ifndef GCC_HWINT_H
+#define GCC_HWINT_H
-/* Only do all of this if both of these macros are defined, otherwise
- they'll evaluate to zero, which is not what you want. */
-#if defined (HOST_BITS_PER_LONG) && defined (HOST_BITS_PER_INT)
-
-/* Find the largest host integer type and set its size and type. */
-
-/* Use long long on the host if the target has a wider long type than
- the host. */
-
-#if ! defined HOST_BITS_PER_WIDE_INT \
- && defined HOST_BITS_PER_LONGLONG \
- && (HOST_BITS_PER_LONGLONG > HOST_BITS_PER_LONG) \
- && (defined (LONG_LONG_MAX) || defined (LONGLONG_MAX) \
- || defined (LLONG_MAX) || defined (__GNUC__))
-
-# ifdef MAX_LONG_TYPE_SIZE
-# if MAX_LONG_TYPE_SIZE > HOST_BITS_PER_LONG
-# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG
-# define HOST_WIDE_INT long long
-# endif
-# else
-# if LONG_TYPE_SIZE > HOST_BITS_PER_LONG
-# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG
-# define HOST_WIDE_INT long long
-# endif
-# endif
+/* This describes the machine the compiler is hosted on. */
+#define HOST_BITS_PER_CHAR CHAR_BIT
+#define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT)
+#define HOST_BITS_PER_INT (CHAR_BIT * SIZEOF_INT)
+#define HOST_BITS_PER_LONG (CHAR_BIT * SIZEOF_LONG)
+/* The string that should be inserted into a printf style format to
+ indicate a "long" operand. */
+#ifndef HOST_LONG_FORMAT
+#define HOST_LONG_FORMAT "l"
#endif
-#ifndef HOST_BITS_PER_WIDE_INT
+/* The string that should be inserted into a printf style format to
+ indicate a "long long" operand. */
+#ifndef HOST_LONG_LONG_FORMAT
+#define HOST_LONG_LONG_FORMAT "ll"
+#endif
-# 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
+/* If HAVE_LONG_LONG and SIZEOF_LONG_LONG aren't defined, but
+ GCC_VERSION >= 3000, assume this is the second or later stage of a
+ bootstrap, we do have long long, and it's 64 bits. (This is
+ required by C99; we do have some ports that violate that assumption
+ but they're all cross-compile-only.) Just in case, force a
+ constraint violation if that assumption is incorrect. */
+#if !defined HAVE_LONG_LONG
+# if GCC_VERSION >= 3000
+# define HAVE_LONG_LONG 1
+# define SIZEOF_LONG_LONG 8
+extern char sizeof_long_long_must_be_8[sizeof(long long) == 8 ? 1 : -1];
# endif
+#endif
-#endif /* ! HOST_BITS_PER_WIDE_INT */
+#ifdef HAVE_LONG_LONG
+# define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF_LONG_LONG)
+#endif
+#ifdef HAVE___INT64
+# define HOST_BITS_PER___INT64 (CHAR_BIT * SIZEOF___INT64)
+#endif
+/* Set HOST_WIDE_INT. This should be the widest efficient host
+ integer type. It can be 32 or 64 bits, except that if we are
+ targeting a machine with 64-bit size_t then it has to be 64 bits.
-/* Provide defaults for the way to print a HOST_WIDE_INT
- in various manners. */
+ With a sane ABI, 'long' is the largest efficient host integer type.
+ Thus, we use that unless we have to use 'long long' or '__int64'
+ because we're targeting a 64-bit machine from a 32-bit host. */
-#ifndef HOST_WIDE_INT_PRINT_DEC
-# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
-# define HOST_WIDE_INT_PRINT_DEC "%d"
+#if HOST_BITS_PER_LONG >= 64 || !defined NEED_64BIT_HOST_WIDE_INT
+# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG
+# define HOST_WIDE_INT long
+#else
+# if HOST_BITS_PER_LONGLONG >= 64
+# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG
+# define HOST_WIDE_INT long long
# else
-# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
-# define HOST_WIDE_INT_PRINT_DEC "%ld"
+# if HOST_BITS_PER___INT64 >= 64
+# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER___INT64
+# define HOST_WIDE_INT __int64
# else
-# define HOST_WIDE_INT_PRINT_DEC "%lld"
+ #error "Unable to find a suitable type for HOST_WIDE_INT"
# endif
# endif
-#endif /* ! HOST_WIDE_INT_PRINT_DEC */
+#endif
+
+/* Various printf format strings for HOST_WIDE_INT. */
-#ifndef HOST_WIDE_INT_PRINT_UNSIGNED
-# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
-# define HOST_WIDE_INT_PRINT_UNSIGNED "%u"
+#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+# define HOST_WIDE_INT_PRINT HOST_LONG_FORMAT
+# define HOST_WIDE_INT_PRINT_C "L"
+ /* 'long' might be 32 or 64 bits, and the number of leading zeroes
+ must be tweaked accordingly. */
+# if HOST_BITS_PER_WIDE_INT == 64
+# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \
+ "0x%" HOST_LONG_FORMAT "x%016" HOST_LONG_FORMAT "x"
# 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
+# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \
+ "0x%" HOST_LONG_FORMAT "x%08" HOST_LONG_FORMAT "x"
# endif
-#endif /* ! HOST_WIDE_INT_PRINT_UNSIGNED */
-
-#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
+# define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT
+# define HOST_WIDE_INT_PRINT_C "LL"
+ /* We can assume that 'long long' is at least 64 bits. */
+# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \
+ "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x"
+#endif /* HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG */
+
+#define HOST_WIDE_INT_PRINT_DEC "%" HOST_WIDE_INT_PRINT "d"
+#define HOST_WIDE_INT_PRINT_DEC_C HOST_WIDE_INT_PRINT_DEC HOST_WIDE_INT_PRINT_C
+#define HOST_WIDE_INT_PRINT_UNSIGNED "%" HOST_WIDE_INT_PRINT "u"
+#define HOST_WIDE_INT_PRINT_HEX "%#" HOST_WIDE_INT_PRINT "x"
+
+/* Set HOST_WIDEST_INT. This is a 64-bit type unless the compiler
+ in use has no 64-bit type at all; in that case it's 32 bits. */
+
+#if HOST_BITS_PER_WIDE_INT >= 64 \
+ || (HOST_BITS_PER_LONGLONG < 64 && HOST_BITS_PER___INT64 < 64)
+# define HOST_WIDEST_INT HOST_WIDE_INT
+# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_WIDE_INT
+# define HOST_WIDEST_INT_PRINT HOST_WIDE_INT_PRINT
+# define HOST_WIDEST_INT_PRINT_DEC HOST_WIDE_INT_PRINT_DEC
+# define HOST_WIDEST_INT_PRINT_DEC_C HOST_WIDE_INT_PRINT_DEC_C
+# define HOST_WIDEST_INT_PRINT_UNSIGNED HOST_WIDE_INT_PRINT_UNSIGNED
+# define HOST_WIDEST_INT_PRINT_HEX HOST_WIDE_INT_PRINT_HEX
+# define HOST_WIDEST_INT_PRINT_DOUBLE_HEX HOST_WIDE_INT_PRINT_DOUBLE_HEX
+#else
+# if HOST_BITS_PER_LONGLONG >= 64
+# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONGLONG
+# define HOST_WIDEST_INT long long
# else
-# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
-# define HOST_WIDE_INT_PRINT_HEX "0x%lx"
+# if HOST_BITS_PER___INT64 >= 64
+# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER___INT64
+# define HOST_WIDEST_INT __int64
# else
-# define HOST_WIDE_INT_PRINT_HEX "0x%llx"
+ #error "This line should be impossible to reach"
# endif
# endif
-#endif /* ! HOST_WIDE_INT_PRINT_HEX */
+# define HOST_WIDEST_INT_PRINT HOST_LONG_LONG_FORMAT
+# define HOST_WIDEST_INT_PRINT_DEC "%" HOST_LONG_LONG_FORMAT "d"
+# define HOST_WIDEST_INT_PRINT_DEC_C "%" HOST_LONG_LONG_FORMAT "dLL"
+# define HOST_WIDEST_INT_PRINT_UNSIGNED "%" HOST_LONG_LONG_FORMAT "u"
+# define HOST_WIDEST_INT_PRINT_HEX "%#" HOST_LONG_LONG_FORMAT "x"
+# define HOST_WIDEST_INT_PRINT_DOUBLE_HEX \
+ "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x"
+#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"
+/* Define HOST_WIDEST_FAST_INT to the widest integer type supported
+ efficiently in hardware. (That is, the widest integer type that fits
+ in a hardware register.) Normally this is "long" but on some hosts it
+ should be "long long" or "__int64". This is no convenient way to
+ autodetect this, so such systems must set a flag in config.host; see there
+ for details. */
+
+#ifdef USE_LONG_LONG_FOR_WIDEST_FAST_INT
+# ifdef HAVE_LONG_LONG
+# define HOST_WIDEST_FAST_INT long long
+# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONGLONG
+# elif defined (HAVE___INT64)
+# define HOST_WIDEST_FAST_INT __int64
+# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER___INT64
# 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
+# error "Your host said it wanted to use long long or __int64 but neither"
+# error "exist"
# endif
-# endif
-#endif /* ! HOST_WIDE_INT_PRINT_DOUBLE_HEX */
-
-#endif /* HOST_BITS_PER_LONG && HOST_BITS_PER_INT */
+#else
+# define HOST_WIDEST_FAST_INT long
+# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONG
+#endif
-#endif /* __HWINT_H__ */
+#endif /* ! GCC_HWINT_H */
OSDN Git Service
