mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
151 lines
5.7 KiB
C
151 lines
5.7 KiB
C
/* HOST_WIDE_INT definitions for the GNU compiler.
|
|
Copyright (C) 1998, 2002, 2004 Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
Provide definitions for macros which depend on HOST_BITS_PER_INT
|
|
and HOST_BITS_PER_LONG. */
|
|
|
|
#ifndef GCC_HWINT_H
|
|
#define GCC_HWINT_H
|
|
|
|
/* 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 long" operand. */
|
|
#ifndef HOST_LONG_LONG_FORMAT
|
|
#define HOST_LONG_LONG_FORMAT "ll"
|
|
#endif
|
|
|
|
/* 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
|
|
|
|
#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.
|
|
|
|
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. */
|
|
|
|
#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___INT64 >= 64
|
|
# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER___INT64
|
|
# define HOST_WIDE_INT __int64
|
|
# else
|
|
#error "Unable to find a suitable type for HOST_WIDE_INT"
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
/* Various printf format strings for HOST_WIDE_INT. */
|
|
|
|
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
|
|
# define HOST_WIDE_INT_PRINT "l"
|
|
# 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%lx%016lx"
|
|
# else
|
|
# define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%08lx"
|
|
# endif
|
|
#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 "0x%" 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_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___INT64 >= 64
|
|
# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER___INT64
|
|
# define HOST_WIDEST_INT __int64
|
|
# else
|
|
#error "This line should be impossible to reach"
|
|
# endif
|
|
# endif
|
|
# 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 "0x%" 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
|
|
|
|
/* 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
|
|
autodect 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
|
|
# error "Your host said it wantted to use long long or __int64 but neither"
|
|
# error "exist"
|
|
# endif
|
|
#else
|
|
# define HOST_WIDEST_FAST_INT long
|
|
# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONG
|
|
#endif
|
|
|
|
#endif /* ! GCC_HWINT_H */
|