1/* HOST_WIDE_INT definitions for the GNU compiler. 2 Copyright (C) 1998, 2002, 2004, 2008, 2009 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 Provide definitions for macros which depend on HOST_BITS_PER_INT 7 and HOST_BITS_PER_LONG. */ 8 9#ifndef GCC_HWINT_H 10#define GCC_HWINT_H 11 12/* This describes the machine the compiler is hosted on. */ 13#define HOST_BITS_PER_CHAR CHAR_BIT 14#define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT) 15#define HOST_BITS_PER_INT (CHAR_BIT * SIZEOF_INT) 16#define HOST_BITS_PER_LONG (CHAR_BIT * SIZEOF_LONG) 17 18/* The string that should be inserted into a printf style format to 19 indicate a "long" operand. */ 20#ifndef HOST_LONG_FORMAT 21#define HOST_LONG_FORMAT "l" 22#endif 23 24/* The string that should be inserted into a printf style format to 25 indicate a "long long" operand. */ 26#ifndef HOST_LONG_LONG_FORMAT 27#define HOST_LONG_LONG_FORMAT "ll" 28#endif 29 30/* If HAVE_LONG_LONG and SIZEOF_LONG_LONG aren't defined, but 31 GCC_VERSION >= 3000, assume this is the second or later stage of a 32 bootstrap, we do have long long, and it's 64 bits. (This is 33 required by C99; we do have some ports that violate that assumption 34 but they're all cross-compile-only.) Just in case, force a 35 constraint violation if that assumption is incorrect. */ 36#if !defined HAVE_LONG_LONG 37# if GCC_VERSION >= 3000 38# define HAVE_LONG_LONG 1 39# define SIZEOF_LONG_LONG 8 40extern char sizeof_long_long_must_be_8[sizeof(long long) == 8 ? 1 : -1]; 41# endif 42#endif 43 44#ifdef HAVE_LONG_LONG 45# define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF_LONG_LONG) 46#endif 47#ifdef HAVE___INT64 48# define HOST_BITS_PER___INT64 (CHAR_BIT * SIZEOF___INT64) 49#endif 50 51/* Set HOST_WIDE_INT. This should be the widest efficient host 52 integer type. It can be 32 or 64 bits, except that if we are 53 targeting a machine with 64-bit size_t then it has to be 64 bits. 54 55 With a sane ABI, 'long' is the largest efficient host integer type. 56 Thus, we use that unless we have to use 'long long' or '__int64' 57 because we're targeting a 64-bit machine from a 32-bit host. */ 58 59#if HOST_BITS_PER_LONG >= 64 || !defined NEED_64BIT_HOST_WIDE_INT 60# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG 61# define HOST_WIDE_INT long 62#else 63# if HOST_BITS_PER_LONGLONG >= 64 64# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONGLONG 65# define HOST_WIDE_INT long long 66# else 67# if HOST_BITS_PER___INT64 >= 64 68# define HOST_BITS_PER_WIDE_INT HOST_BITS_PER___INT64 69# define HOST_WIDE_INT __int64 70# else 71 #error "Unable to find a suitable type for HOST_WIDE_INT" 72# endif 73# endif 74#endif 75 76/* Various printf format strings for HOST_WIDE_INT. */ 77 78#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG 79# define HOST_WIDE_INT_PRINT HOST_LONG_FORMAT 80# define HOST_WIDE_INT_PRINT_C "L" 81# define HOST_WIDE_INT_CONSTANT(x) x ## L 82 /* 'long' might be 32 or 64 bits, and the number of leading zeroes 83 must be tweaked accordingly. */ 84# if HOST_BITS_PER_WIDE_INT == 64 85# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \ 86 "0x%" HOST_LONG_FORMAT "x%016" HOST_LONG_FORMAT "x" 87# else 88# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \ 89 "0x%" HOST_LONG_FORMAT "x%08" HOST_LONG_FORMAT "x" 90# endif 91#else 92# define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT 93# define HOST_WIDE_INT_PRINT_C "LL" 94# define HOST_WIDE_INT_CONSTANT(x) x ## LL 95 /* We can assume that 'long long' is at least 64 bits. */ 96# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \ 97 "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x" 98#endif /* HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG */ 99 100#define HOST_WIDE_INT_PRINT_DEC "%" HOST_WIDE_INT_PRINT "d" 101#define HOST_WIDE_INT_PRINT_DEC_C HOST_WIDE_INT_PRINT_DEC HOST_WIDE_INT_PRINT_C 102#define HOST_WIDE_INT_PRINT_UNSIGNED "%" HOST_WIDE_INT_PRINT "u" 103#define HOST_WIDE_INT_PRINT_HEX "0x%" HOST_WIDE_INT_PRINT "x" 104 105/* Set HOST_WIDEST_INT. This is a 64-bit type unless the compiler 106 in use has no 64-bit type at all; in that case it's 32 bits. */ 107 108#if HOST_BITS_PER_WIDE_INT >= 64 \ 109 || (HOST_BITS_PER_LONGLONG < 64 && HOST_BITS_PER___INT64 < 64) 110# define HOST_WIDEST_INT HOST_WIDE_INT 111# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_WIDE_INT 112# define HOST_WIDEST_INT_PRINT HOST_WIDE_INT_PRINT 113# define HOST_WIDEST_INT_PRINT_DEC HOST_WIDE_INT_PRINT_DEC 114# define HOST_WIDEST_INT_PRINT_DEC_C HOST_WIDE_INT_PRINT_DEC_C 115# define HOST_WIDEST_INT_PRINT_UNSIGNED HOST_WIDE_INT_PRINT_UNSIGNED 116# define HOST_WIDEST_INT_PRINT_HEX HOST_WIDE_INT_PRINT_HEX 117# define HOST_WIDEST_INT_PRINT_DOUBLE_HEX HOST_WIDE_INT_PRINT_DOUBLE_HEX 118#else 119# if HOST_BITS_PER_LONGLONG >= 64 120# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONGLONG 121# define HOST_WIDEST_INT long long 122# else 123# if HOST_BITS_PER___INT64 >= 64 124# define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER___INT64 125# define HOST_WIDEST_INT __int64 126# else 127 #error "This line should be impossible to reach" 128# endif 129# endif 130# define HOST_WIDEST_INT_PRINT HOST_LONG_LONG_FORMAT 131# define HOST_WIDEST_INT_PRINT_DEC "%" HOST_LONG_LONG_FORMAT "d" 132# define HOST_WIDEST_INT_PRINT_DEC_C "%" HOST_LONG_LONG_FORMAT "dLL" 133# define HOST_WIDEST_INT_PRINT_UNSIGNED "%" HOST_LONG_LONG_FORMAT "u" 134# define HOST_WIDEST_INT_PRINT_HEX "0x%" HOST_LONG_LONG_FORMAT "x" 135# define HOST_WIDEST_INT_PRINT_DOUBLE_HEX \ 136 "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x" 137#endif 138 139/* Define HOST_WIDEST_FAST_INT to the widest integer type supported 140 efficiently in hardware. (That is, the widest integer type that fits 141 in a hardware register.) Normally this is "long" but on some hosts it 142 should be "long long" or "__int64". This is no convenient way to 143 autodetect this, so such systems must set a flag in config.host; see there 144 for details. */ 145 146#ifdef USE_LONG_LONG_FOR_WIDEST_FAST_INT 147# ifdef HAVE_LONG_LONG 148# define HOST_WIDEST_FAST_INT long long 149# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONGLONG 150# elif defined (HAVE___INT64) 151# define HOST_WIDEST_FAST_INT __int64 152# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER___INT64 153# else 154# error "Your host said it wanted to use long long or __int64 but neither" 155# error "exist" 156# endif 157#else 158# define HOST_WIDEST_FAST_INT long 159# define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONG 160#endif 161 162#endif /* ! GCC_HWINT_H */ 163