gcc/builtins.def

   1 /* This file contains the definitions and documentation for the
   2    builtins used in the GNU compiler.
   3    Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22 /* Before including this file, you should define a macro:
  23
  24      DEF_BUILTIN (ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P,
  25                   FALLBACK_P, NONANSI_P, ATTRS, IMPLICIT)
  26
  27    This macro will be called once for each builtin function.  The
  28    ENUM will be of type `enum built_in_function', and will indicate
  29    which builtin function is being processed.  The NAME of the builtin
  30    function (which will always start with `__builtin_') is a string
  31    literal.  The CLASS is of type `enum built_in_class' and indicates
  32    what kind of builtin is being processed.
  33
  34    Some builtins are actually two separate functions.  For example,
  35    for `strcmp' there are two builtin functions; `__builtin_strcmp'
  36    and `strcmp' itself.  Both behave identically.  Other builtins
  37    define only the `__builtin' variant.  If BOTH_P is TRUE, then this
  38    builtin has both variants; otherwise, it is has only the first
  39    variant.
  40
  41    TYPE indicates the type of the function.  The symbols correspond to
  42    enumerals from builtin-types.def.  If BOTH_P is true, then LIBTYPE
  43    is the type of the non-`__builtin_' variant.  Otherwise, LIBTYPE
  44    should be ignored.
  45
  46    If FALLBACK_P is true then, if for some reason, the compiler cannot
  47    expand the builtin function directly, it will call the
  48    corresponding library function (which does not have the
  49    `__builtin_' prefix.
  50
  51    If NONANSI_P is true, then the non-`__builtin_' variant is not an
  52    ANSI/ISO library function, and so we should pretend it does not
  53    exist when compiling in ANSI conformant mode.
  54
  55    ATTRs is an attribute list as defined in builtin-attrs.def that
  56    describes the attributes of this builtin function.
  57
  58    IMPLICIT specifies condition when the builtin can be produced by
  59    compiler.  For instance C90 reserves floorf function, but does not
  60    define it's meaning.  When user uses floorf we may assume that the
  61    floorf has the meaning we expect, but we can't produce floorf by
  62    simplifying floor((double)float) since the runtime need not implement
  63    it.  */
  64
  65 /* A GCC builtin (like __builtin_saveregs) is provided by the
  66    compiler, but does not correspond to a function in the standard
  67    library.  */
  68 #undef DEF_GCC_BUILTIN
  69 #define DEF_GCC_BUILTIN(ENUM, NAME, TYPE, ATTRS)                \
  70   DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, BT_LAST, \
  71                false, false, false, ATTRS, true)
  72
  73 /* A library builtin (like __builtin_strchr) is a builtin equivalent
  74    of an ANSI/ISO standard library function.  In addition to the
  75    `__builtin' version, we will create an ordinary version (e.g,
  76    `strchr') as well.  If we cannot compute the answer using the
  77    builtin function, we will fall back to the standard library
  78    version.  */
  79 #undef DEF_LIB_BUILTIN
  80 #define DEF_LIB_BUILTIN(ENUM, NAME, TYPE, ATTRS)        \
  81   DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE,    \
  82                true, true, false, ATTRS, true)
  83
  84 /* Like DEF_LIB_BUILTIN, except that the function is not one that is
  85    specified by ANSI/ISO C.  So, when we're being fully conformant we
  86    ignore the version of these builtins that does not begin with
  87    __builtin.  */
  88 #undef DEF_EXT_LIB_BUILTIN
  89 #define DEF_EXT_LIB_BUILTIN(ENUM, NAME, TYPE, ATTRS)    \
  90   DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE,    \
  91                true, true, true, ATTRS, false)
  92
  93 /* Like DEF_LIB_BUILTIN, except that the function is only a part of
  94    the standard in C99 or above.  */
  95 #undef DEF_C99_BUILTIN
  96 #define DEF_C99_BUILTIN(ENUM, NAME, TYPE, ATTRS)        \
  97   DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE,    \
  98                true, true, !flag_isoc99, ATTRS, TARGET_C99_FUNCTIONS)
  99
 100 /* Builtin that is specified by C99 and C90 reserve the name for future use.
 101    We can still recognize the builtin in C90 mode but we can't produce it
 102    implicitly.  */
 103 #undef DEF_C99_C90RES_BUILTIN
 104 #define DEF_C99_C90RES_BUILTIN(ENUM, NAME, TYPE, ATTRS) \
 105   DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE,    \
 106                true, true, !flag_isoc99, ATTRS, TARGET_C99_FUNCTIONS)
 107
 108 /* Define at attribute list for math functions that are normally
 109    "impure" because some of them may write into global memory for
 110    `errno'.  If !flag_errno_math they are instead "const".  */
 111 #undef ATTR_MATHFN_ERRNO
 112 #define ATTR_MATHFN_ERRNO (flag_errno_math ? \
 113         ATTR_NOTHROW_LIST : ATTR_CONST_NOTHROW_LIST)
 114
 115 /* Define at attribute list for math functions that are normally
 116    "pure" but if flag_unsafe_math_optimizations is set they are
 117    instead "const".  This distinction accounts for the fact that some
 118    math functions check the rounding mode which is akin to examing
 119    global memory.  In "unsafe" mode we can be less careful.  */
 120 #undef ATTR_MATHFN_FPROUNDING
 121 #define ATTR_MATHFN_FPROUNDING (flag_unsafe_math_optimizations ? \
 122         ATTR_CONST_NOTHROW_LIST : ATTR_PURE_NOTHROW_LIST)
 123
 124 /* Define at attribute list for math functions that are normally
 125    "impure" because some of them may write into global memory for
 126    `errno'.  If !flag_errno_math, we can possibly use "pure" or
 127    "const" depending on whether we care about FP rounding.  */
 128 #undef ATTR_MATHFN_FPROUNDING_ERRNO
 129 #define ATTR_MATHFN_FPROUNDING_ERRNO (flag_errno_math ? \
 130         ATTR_NOTHROW_LIST : ATTR_MATHFN_FPROUNDING)
 131
 132
 133 /* Category: math builtins.  */
 134 DEF_LIB_BUILTIN        (BUILT_IN_ATAN, "atan", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
 135 DEF_LIB_BUILTIN        (BUILT_IN_ATAN2, "atan2", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 136 DEF_C99_C90RES_BUILTIN (BUILT_IN_ATAN2F, "atan2f", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
 137 DEF_C99_C90RES_BUILTIN (BUILT_IN_ATAN2L, "atan2l", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 138 DEF_C99_C90RES_BUILTIN (BUILT_IN_ATANF, "atanf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
 139 DEF_C99_C90RES_BUILTIN (BUILT_IN_ATANL, "atanl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
 140 DEF_C99_BUILTIN        (BUILT_IN_CABS, "cabs", BT_FN_DOUBLE_COMPLEX_DOUBLE, ATTR_MATHFN_FPROUNDING)
 141 DEF_C99_BUILTIN        (BUILT_IN_CABSF, "cabsf", BT_FN_FLOAT_COMPLEX_FLOAT, ATTR_MATHFN_FPROUNDING)
 142 DEF_C99_BUILTIN        (BUILT_IN_CABSL, "cabsl", BT_FN_LONGDOUBLE_COMPLEX_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
 143 DEF_LIB_BUILTIN        (BUILT_IN_CEIL, "ceil", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 144 DEF_C99_C90RES_BUILTIN (BUILT_IN_CEILF, "ceilf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
 145 DEF_C99_C90RES_BUILTIN (BUILT_IN_CEILL, "ceill", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 146 DEF_C99_BUILTIN        (BUILT_IN_CIMAG, "cimag", BT_FN_DOUBLE_COMPLEX_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 147 DEF_C99_BUILTIN        (BUILT_IN_CIMAGF, "cimagf", BT_FN_FLOAT_COMPLEX_FLOAT, ATTR_CONST_NOTHROW_LIST)
 148 DEF_C99_BUILTIN        (BUILT_IN_CIMAGL, "cimagl", BT_FN_LONGDOUBLE_COMPLEX_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 149 DEF_C99_BUILTIN        (BUILT_IN_CONJ, "conj", BT_FN_COMPLEX_DOUBLE_COMPLEX_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 150 DEF_C99_BUILTIN        (BUILT_IN_CONJF, "conjf", BT_FN_COMPLEX_FLOAT_COMPLEX_FLOAT, ATTR_CONST_NOTHROW_LIST)
 151 DEF_C99_BUILTIN        (BUILT_IN_CONJL, "conjl", BT_FN_COMPLEX_LONGDOUBLE_COMPLEX_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 152 DEF_LIB_BUILTIN        (BUILT_IN_COS, "cos", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
 153 DEF_C99_C90RES_BUILTIN (BUILT_IN_COSF, "cosf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
 154 DEF_C99_C90RES_BUILTIN (BUILT_IN_COSL, "cosl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
 155 DEF_C99_BUILTIN        (BUILT_IN_CREAL, "creal", BT_FN_DOUBLE_COMPLEX_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 156 DEF_C99_BUILTIN        (BUILT_IN_CREALF, "crealf", BT_FN_FLOAT_COMPLEX_FLOAT, ATTR_CONST_NOTHROW_LIST)
 157 DEF_C99_BUILTIN        (BUILT_IN_CREALL, "creall", BT_FN_LONGDOUBLE_COMPLEX_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 158 DEF_LIB_BUILTIN        (BUILT_IN_EXP, "exp", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 159 DEF_C99_C90RES_BUILTIN (BUILT_IN_EXPF, "expf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
 160 DEF_C99_C90RES_BUILTIN (BUILT_IN_EXPL, "expl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 161 DEF_LIB_BUILTIN        (BUILT_IN_FABS, "fabs", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 162 DEF_C99_C90RES_BUILTIN (BUILT_IN_FABSF, "fabsf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
 163 DEF_C99_C90RES_BUILTIN (BUILT_IN_FABSL, "fabsl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 164 DEF_LIB_BUILTIN        (BUILT_IN_FLOOR, "floor", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 165 DEF_C99_C90RES_BUILTIN (BUILT_IN_FLOORF, "floorf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
 166 DEF_C99_C90RES_BUILTIN (BUILT_IN_FLOORL, "floorl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 167 DEF_LIB_BUILTIN        (BUILT_IN_FMOD, "fmod", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 168 DEF_C99_C90RES_BUILTIN (BUILT_IN_FMODF, "fmodf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
 169 DEF_C99_C90RES_BUILTIN (BUILT_IN_FMODL, "fmodl", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 170 DEF_GCC_BUILTIN        (BUILT_IN_HUGE_VAL, "huge_val", BT_FN_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 171 DEF_GCC_BUILTIN        (BUILT_IN_HUGE_VALF, "huge_valf", BT_FN_FLOAT, ATTR_CONST_NOTHROW_LIST)
 172 DEF_GCC_BUILTIN        (BUILT_IN_HUGE_VALL, "huge_vall", BT_FN_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 173 DEF_GCC_BUILTIN        (BUILT_IN_INF, "inf", BT_FN_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 174 DEF_GCC_BUILTIN        (BUILT_IN_INFF, "inff", BT_FN_FLOAT, ATTR_CONST_NOTHROW_LIST)
 175 DEF_GCC_BUILTIN        (BUILT_IN_INFL, "infl", BT_FN_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 176 DEF_LIB_BUILTIN        (BUILT_IN_LOG, "log", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 177 DEF_C99_C90RES_BUILTIN (BUILT_IN_LOGF, "logf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
 178 DEF_C99_C90RES_BUILTIN (BUILT_IN_LOGL, "logl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 179 DEF_LIB_BUILTIN        (BUILT_IN_NAN, "nan", BT_FN_DOUBLE_CONST_STRING, ATTR_CONST_NOTHROW_NONNULL_1)
 180 DEF_LIB_BUILTIN        (BUILT_IN_NANF, "nanf", BT_FN_FLOAT_CONST_STRING, ATTR_CONST_NOTHROW_NONNULL_1)
 181 DEF_LIB_BUILTIN        (BUILT_IN_NANL, "nanl", BT_FN_LONGDOUBLE_CONST_STRING, ATTR_CONST_NOTHROW_NONNULL_1)
 182 DEF_LIB_BUILTIN        (BUILT_IN_NANS, "nans", BT_FN_DOUBLE_CONST_STRING, ATTR_CONST_NOTHROW_NONNULL_1)
 183 DEF_LIB_BUILTIN        (BUILT_IN_NANSF, "nansf", BT_FN_FLOAT_CONST_STRING, ATTR_CONST_NOTHROW_NONNULL_1)
 184 DEF_LIB_BUILTIN        (BUILT_IN_NANSL, "nansl", BT_FN_LONGDOUBLE_CONST_STRING, ATTR_CONST_NOTHROW_NONNULL_1)
 185 DEF_C99_BUILTIN        (BUILT_IN_NEARBYINT, "nearbyint", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 186 DEF_C99_BUILTIN        (BUILT_IN_NEARBYINTF, "nearbyintf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
 187 DEF_C99_BUILTIN        (BUILT_IN_NEARBYINTL, "nearbyintl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 188 DEF_LIB_BUILTIN        (BUILT_IN_POW, "pow", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 189 DEF_C99_C90RES_BUILTIN (BUILT_IN_POWF, "powf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
 190 DEF_C99_C90RES_BUILTIN (BUILT_IN_POWL, "powl", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 191 DEF_C99_BUILTIN        (BUILT_IN_ROUND, "round", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 192 DEF_C99_BUILTIN        (BUILT_IN_ROUNDF, "roundf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
 193 DEF_C99_BUILTIN        (BUILT_IN_ROUNDL, "roundl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 194 DEF_LIB_BUILTIN        (BUILT_IN_SIN, "sin", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
 195 DEF_C99_C90RES_BUILTIN (BUILT_IN_SINF, "sinf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
 196 DEF_C99_C90RES_BUILTIN (BUILT_IN_SINL, "sinl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
 197 DEF_LIB_BUILTIN        (BUILT_IN_SQRT, "sqrt", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 198 DEF_C99_C90RES_BUILTIN (BUILT_IN_SQRTF, "sqrtf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
 199 DEF_C99_C90RES_BUILTIN (BUILT_IN_SQRTL, "sqrtl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
 200 DEF_LIB_BUILTIN        (BUILT_IN_TAN, "tan", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
 201 DEF_C99_C90RES_BUILTIN (BUILT_IN_TANF, "tanf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
 202 DEF_C99_C90RES_BUILTIN (BUILT_IN_TANL, "tanl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
 203 DEF_C99_BUILTIN        (BUILT_IN_TRUNC, "trunc", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
 204 DEF_C99_BUILTIN        (BUILT_IN_TRUNCF, "truncf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
 205 DEF_C99_BUILTIN        (BUILT_IN_TRUNCL, "truncl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LIST)
 206
 207 /* Category: string/memory builtins.  */
 208 /* bcmp, bcopy and bzero have traditionally accepted NULL pointers
 209    when the length parameter is zero, so don't apply attribute "nonnull".  */
 210 DEF_EXT_LIB_BUILTIN    (BUILT_IN_BCMP, "bcmp", BT_FN_INT_CONST_PTR_CONST_PTR_SIZE, ATTR_PURE_NOTHROW_LIST)
 211 DEF_EXT_LIB_BUILTIN    (BUILT_IN_BCOPY, "bcopy", BT_FN_VOID_CONST_PTR_PTR_SIZE, ATTR_NOTHROW_LIST)
 212 DEF_EXT_LIB_BUILTIN    (BUILT_IN_BZERO, "bzero", BT_FN_VOID_PTR_SIZE, ATTR_NOTHROW_LIST)
 213 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FFS, "ffs", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
 214 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FFSL, "ffsl", BT_FN_INT_LONG, ATTR_CONST_NOTHROW_LIST)
 215 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FFSLL, "ffsll", BT_FN_INT_LONGLONG, ATTR_CONST_NOTHROW_LIST)
 216 DEF_EXT_LIB_BUILTIN    (BUILT_IN_INDEX, "index", BT_FN_STRING_CONST_STRING_INT, ATTR_PURE_NOTHROW_NONNULL_1)
 217 DEF_LIB_BUILTIN        (BUILT_IN_MEMCMP, "memcmp", BT_FN_INT_CONST_PTR_CONST_PTR_SIZE, ATTR_PURE_NOTHROW_NONNULL_1_2)
 218 DEF_LIB_BUILTIN        (BUILT_IN_MEMCPY, "memcpy", BT_FN_PTR_PTR_CONST_PTR_SIZE, ATTR_NOTHROW_NONNULL_1_2)
 219 DEF_LIB_BUILTIN        (BUILT_IN_MEMMOVE, "memmove", BT_FN_PTR_PTR_CONST_PTR_SIZE, ATTR_NOTHROW_NONNULL_1_2)
 220 DEF_EXT_LIB_BUILTIN    (BUILT_IN_MEMPCPY, "mempcpy", BT_FN_PTR_PTR_CONST_PTR_SIZE, ATTR_NOTHROW_NONNULL_1_2)
 221 DEF_LIB_BUILTIN        (BUILT_IN_MEMSET, "memset", BT_FN_PTR_PTR_INT_SIZE, ATTR_NOTHROW_NONNULL_1)
 222 DEF_EXT_LIB_BUILTIN    (BUILT_IN_RINDEX, "rindex", BT_FN_STRING_CONST_STRING_INT, ATTR_PURE_NOTHROW_NONNULL_1)
 223 DEF_EXT_LIB_BUILTIN    (BUILT_IN_STPCPY, "stpcpy", BT_FN_STRING_STRING_CONST_STRING, ATTR_NOTHROW_NONNULL_1_2)
 224 DEF_LIB_BUILTIN        (BUILT_IN_STRCAT, "strcat", BT_FN_STRING_STRING_CONST_STRING, ATTR_NOTHROW_NONNULL_1_2)
 225 DEF_LIB_BUILTIN        (BUILT_IN_STRCHR, "strchr", BT_FN_STRING_CONST_STRING_INT, ATTR_PURE_NOTHROW_NONNULL_1)
 226 DEF_LIB_BUILTIN        (BUILT_IN_STRCMP, "strcmp", BT_FN_INT_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
 227 DEF_LIB_BUILTIN        (BUILT_IN_STRCPY, "strcpy", BT_FN_STRING_STRING_CONST_STRING, ATTR_NOTHROW_NONNULL_1_2)
 228 DEF_LIB_BUILTIN        (BUILT_IN_STRCSPN, "strcspn", BT_FN_SIZE_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
 229 DEF_EXT_LIB_BUILTIN    (BUILT_IN_STRDUP, "strdup", BT_FN_STRING_CONST_STRING, ATTR_MALLOC_NOTHROW_NONNULL_1)
 230 DEF_LIB_BUILTIN        (BUILT_IN_STRLEN, "strlen", BT_FN_SIZE_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1)
 231 DEF_LIB_BUILTIN        (BUILT_IN_STRNCAT, "strncat", BT_FN_STRING_STRING_CONST_STRING_SIZE, ATTR_NOTHROW_NONNULL_1_2)
 232 DEF_LIB_BUILTIN        (BUILT_IN_STRNCMP, "strncmp", BT_FN_INT_CONST_STRING_CONST_STRING_SIZE, ATTR_PURE_NOTHROW_NONNULL_1_2)
 233 DEF_LIB_BUILTIN        (BUILT_IN_STRNCPY, "strncpy", BT_FN_STRING_STRING_CONST_STRING_SIZE, ATTR_NOTHROW_NONNULL_1_2)
 234 DEF_LIB_BUILTIN        (BUILT_IN_STRPBRK, "strpbrk", BT_FN_STRING_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
 235 DEF_LIB_BUILTIN        (BUILT_IN_STRRCHR, "strrchr", BT_FN_STRING_CONST_STRING_INT, ATTR_PURE_NOTHROW_NONNULL_1)
 236 DEF_LIB_BUILTIN        (BUILT_IN_STRSPN, "strspn", BT_FN_SIZE_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
 237 DEF_LIB_BUILTIN        (BUILT_IN_STRSTR, "strstr", BT_FN_STRING_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
 238
 239 /* Category: stdio builtins.  */
 240 DEF_LIB_BUILTIN        (BUILT_IN_FPRINTF, "fprintf", BT_FN_INT_PTR_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_2_3)
 241 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FPRINTF_UNLOCKED, "fprintf_unlocked", BT_FN_INT_PTR_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_2_3)
 242 DEF_LIB_BUILTIN        (BUILT_IN_FPUTC, "fputc", BT_FN_INT_INT_PTR, ATTR_NOTHROW_NONNULL_2)
 243 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FPUTC_UNLOCKED, "fputc_unlocked", BT_FN_INT_INT_PTR, ATTR_NOTHROW_NONNULL_2)
 244 DEF_LIB_BUILTIN        (BUILT_IN_FPUTS, "fputs", BT_FN_INT_CONST_STRING_PTR, ATTR_NOTHROW_NONNULL_1_2)
 245 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FPUTS_UNLOCKED, "fputs_unlocked", BT_FN_INT_CONST_STRING_PTR, ATTR_NOTHROW_NONNULL_1_2)
 246 DEF_LIB_BUILTIN        (BUILT_IN_FSCANF, "fscanf", BT_FN_INT_PTR_CONST_STRING_VAR, ATTR_FORMAT_SCANF_2_3)
 247 DEF_LIB_BUILTIN        (BUILT_IN_FWRITE, "fwrite", BT_FN_SIZE_CONST_PTR_SIZE_SIZE_PTR, ATTR_NOTHROW_NONNULL_1_4)
 248 DEF_EXT_LIB_BUILTIN    (BUILT_IN_FWRITE_UNLOCKED, "fwrite_unlocked", BT_FN_SIZE_CONST_PTR_SIZE_SIZE_PTR, ATTR_NOTHROW_NONNULL_1_4)
 249 DEF_LIB_BUILTIN        (BUILT_IN_PRINTF, "printf", BT_FN_INT_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_1_2)
 250 DEF_EXT_LIB_BUILTIN    (BUILT_IN_PRINTF_UNLOCKED, "printf_unlocked", BT_FN_INT_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_1_2)
 251 DEF_LIB_BUILTIN        (BUILT_IN_PUTCHAR, "putchar", BT_FN_INT_INT, ATTR_NOTHROW_LIST)
 252 DEF_EXT_LIB_BUILTIN    (BUILT_IN_PUTCHAR_UNLOCKED, "putchar_unlocked", BT_FN_INT_INT, ATTR_NOTHROW_LIST)
 253 DEF_LIB_BUILTIN        (BUILT_IN_PUTS, "puts", BT_FN_INT_CONST_STRING, ATTR_NOTHROW_NONNULL_1)
 254 DEF_EXT_LIB_BUILTIN    (BUILT_IN_PUTS_UNLOCKED, "puts_unlocked", BT_FN_INT_CONST_STRING, ATTR_NOTHROW_NONNULL_1)
 255 DEF_LIB_BUILTIN        (BUILT_IN_SCANF, "scanf", BT_FN_INT_CONST_STRING_VAR, ATTR_FORMAT_SCANF_1_2)
 256 DEF_C99_BUILTIN        (BUILT_IN_SNPRINTF, "snprintf", BT_FN_INT_STRING_SIZE_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_3_4)
 257 DEF_LIB_BUILTIN        (BUILT_IN_SPRINTF, "sprintf", BT_FN_INT_STRING_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_2_3)
 258 DEF_LIB_BUILTIN        (BUILT_IN_SSCANF, "sscanf", BT_FN_INT_CONST_STRING_CONST_STRING_VAR, ATTR_FORMAT_SCANF_2_3)
 259 DEF_LIB_BUILTIN        (BUILT_IN_VFPRINTF, "vfprintf", BT_FN_INT_PTR_CONST_STRING_VALIST_ARG, ATTR_FORMAT_PRINTF_2_0)
 260 DEF_C99_BUILTIN        (BUILT_IN_VFSCANF, "vfscanf", BT_FN_INT_PTR_CONST_STRING_VALIST_ARG, ATTR_FORMAT_SCANF_2_0)
 261 DEF_LIB_BUILTIN        (BUILT_IN_VPRINTF, "vprintf", BT_FN_INT_CONST_STRING_VALIST_ARG, ATTR_FORMAT_PRINTF_1_0)
 262 DEF_C99_BUILTIN        (BUILT_IN_VSCANF, "vscanf", BT_FN_INT_CONST_STRING_VALIST_ARG, ATTR_FORMAT_SCANF_1_0)
 263 DEF_C99_BUILTIN        (BUILT_IN_VSNPRINTF, "vsnprintf", BT_FN_INT_STRING_SIZE_CONST_STRING_VALIST_ARG, ATTR_FORMAT_PRINTF_3_0)
 264 DEF_LIB_BUILTIN        (BUILT_IN_VSPRINTF, "vsprintf", BT_FN_INT_STRING_CONST_STRING_VALIST_ARG, ATTR_FORMAT_PRINTF_2_0)
 265 DEF_C99_BUILTIN        (BUILT_IN_VSSCANF, "vsscanf", BT_FN_INT_CONST_STRING_CONST_STRING_VALIST_ARG, ATTR_FORMAT_SCANF_2_0)
 266
 267 /* Category: miscellaneous builtins.  */
 268 DEF_LIB_BUILTIN        (BUILT_IN_ABORT, "abort", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LIST)
 269 DEF_LIB_BUILTIN        (BUILT_IN_ABS, "abs", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
 270 DEF_GCC_BUILTIN        (BUILT_IN_AGGREGATE_INCOMING_ADDRESS, "aggregate_incoming_address", BT_FN_PTR_VAR, ATTR_NULL)
 271 DEF_EXT_LIB_BUILTIN    (BUILT_IN_ALLOCA, "alloca", BT_FN_PTR_SIZE, ATTR_MALLOC_NOTHROW_LIST)
 272 DEF_GCC_BUILTIN        (BUILT_IN_APPLY, "apply", BT_FN_PTR_PTR_FN_VOID_VAR_PTR_SIZE, ATTR_NULL)
 273 DEF_GCC_BUILTIN        (BUILT_IN_APPLY_ARGS, "apply_args", BT_FN_PTR_VAR, ATTR_NULL)
 274 DEF_GCC_BUILTIN        (BUILT_IN_ARGS_INFO, "args_info", BT_FN_INT_INT, ATTR_NULL)
 275 DEF_LIB_BUILTIN        (BUILT_IN_CALLOC, "calloc", BT_FN_PTR_SIZE_SIZE, ATTR_MALLOC_NOTHROW_LIST)
 276 DEF_GCC_BUILTIN        (BUILT_IN_CLASSIFY_TYPE, "classify_type", BT_FN_INT_VAR, ATTR_NULL)
 277 DEF_GCC_BUILTIN        (BUILT_IN_CLZ, "clz", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
 278 DEF_GCC_BUILTIN        (BUILT_IN_CLZL, "clzl", BT_FN_INT_LONG, ATTR_CONST_NOTHROW_LIST)
 279 DEF_GCC_BUILTIN        (BUILT_IN_CLZLL, "clzll", BT_FN_INT_LONGLONG, ATTR_CONST_NOTHROW_LIST)
 280 DEF_GCC_BUILTIN        (BUILT_IN_CONSTANT_P, "constant_p", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 281 DEF_GCC_BUILTIN        (BUILT_IN_CTZ, "ctz", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
 282 DEF_GCC_BUILTIN        (BUILT_IN_CTZL, "ctzl", BT_FN_INT_LONG, ATTR_CONST_NOTHROW_LIST)
 283 DEF_GCC_BUILTIN        (BUILT_IN_CTZLL, "ctzll", BT_FN_INT_LONGLONG, ATTR_CONST_NOTHROW_LIST)
 284 DEF_EXT_LIB_BUILTIN    (BUILT_IN_DCGETTEXT, "dcgettext", BT_FN_STRING_CONST_STRING_CONST_STRING_INT, ATTR_FORMAT_ARG_2)
 285 DEF_EXT_LIB_BUILTIN    (BUILT_IN_DGETTEXT, "dgettext", BT_FN_STRING_CONST_STRING_CONST_STRING, ATTR_FORMAT_ARG_2)
 286 DEF_GCC_BUILTIN        (BUILT_IN_DWARF_CFA, "dwarf_cfa", BT_FN_PTR, ATTR_NULL)
 287 DEF_GCC_BUILTIN        (BUILT_IN_DWARF_SP_COLUMN, "dwarf_sp_column", BT_FN_UNSIGNED, ATTR_NULL)
 288 DEF_GCC_BUILTIN        (BUILT_IN_EH_RETURN, "eh_return", BT_FN_VOID_PTRMODE_PTR, ATTR_NORETURN_NOTHROW_LIST)
 289 DEF_GCC_BUILTIN        (BUILT_IN_EH_RETURN_DATA_REGNO, "eh_return_data_regno", BT_FN_INT_INT, ATTR_NULL)
 290 DEF_LIB_BUILTIN        (BUILT_IN_EXIT, "exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
 291 DEF_GCC_BUILTIN        (BUILT_IN_EXPECT, "expect", BT_FN_LONG_LONG_LONG, ATTR_NULL)
 292 DEF_GCC_BUILTIN        (BUILT_IN_EXTRACT_RETURN_ADDR, "extract_return_addr", BT_FN_PTR_PTR, ATTR_NULL)
 293 DEF_GCC_BUILTIN        (BUILT_IN_FRAME_ADDRESS, "frame_address", BT_FN_PTR_UNSIGNED, ATTR_NULL)
 294 DEF_GCC_BUILTIN        (BUILT_IN_FROB_RETURN_ADDR, "frob_return_addr", BT_FN_PTR_PTR, ATTR_NULL)
 295 DEF_EXT_LIB_BUILTIN    (BUILT_IN_GETTEXT, "gettext", BT_FN_STRING_CONST_STRING, ATTR_FORMAT_ARG_1)
 296 DEF_C99_BUILTIN        (BUILT_IN_IMAXABS, "imaxabs", BT_FN_INTMAX_INTMAX, ATTR_CONST_NOTHROW_LIST)
 297 DEF_GCC_BUILTIN        (BUILT_IN_INIT_DWARF_REG_SIZES, "init_dwarf_reg_size_table", BT_FN_VOID_PTR, ATTR_NULL)
 298 DEF_GCC_BUILTIN        (BUILT_IN_ISGREATER, "isgreater", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 299 DEF_GCC_BUILTIN        (BUILT_IN_ISGREATEREQUAL, "isgreaterequal", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 300 DEF_GCC_BUILTIN        (BUILT_IN_ISLESS, "isless", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 301 DEF_GCC_BUILTIN        (BUILT_IN_ISLESSEQUAL, "islessequal", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 302 DEF_GCC_BUILTIN        (BUILT_IN_ISLESSGREATER, "islessgreater", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 303 DEF_GCC_BUILTIN        (BUILT_IN_ISUNORDERED, "isunordered", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_LIST)
 304 DEF_LIB_BUILTIN        (BUILT_IN_LABS, "labs", BT_FN_LONG_LONG, ATTR_CONST_NOTHROW_LIST)
 305 DEF_C99_BUILTIN        (BUILT_IN_LLABS, "llabs", BT_FN_LONGLONG_LONGLONG, ATTR_CONST_NOTHROW_LIST)
 306 DEF_GCC_BUILTIN        (BUILT_IN_LONGJMP, "longjmp", BT_FN_VOID_PTR_INT, ATTR_NORETURN_NOTHROW_LIST)
 307 DEF_LIB_BUILTIN        (BUILT_IN_MALLOC, "malloc", BT_FN_PTR_SIZE, ATTR_MALLOC_NOTHROW_LIST)
 308 DEF_GCC_BUILTIN        (BUILT_IN_NEXT_ARG, "next_arg", BT_FN_PTR_VAR, ATTR_NULL)
 309 DEF_GCC_BUILTIN        (BUILT_IN_PARITY, "parity", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
 310 DEF_GCC_BUILTIN        (BUILT_IN_PARITYL, "parityl", BT_FN_INT_LONG, ATTR_CONST_NOTHROW_LIST)
 311 DEF_GCC_BUILTIN        (BUILT_IN_PARITYLL, "parityll", BT_FN_INT_LONGLONG, ATTR_CONST_NOTHROW_LIST)
 312 DEF_GCC_BUILTIN        (BUILT_IN_POPCOUNT, "popcount", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
 313 DEF_GCC_BUILTIN        (BUILT_IN_POPCOUNTL, "popcountl", BT_FN_INT_LONG, ATTR_CONST_NOTHROW_LIST)
 314 DEF_GCC_BUILTIN        (BUILT_IN_POPCOUNTLL, "popcountll", BT_FN_INT_LONGLONG, ATTR_CONST_NOTHROW_LIST)
 315 DEF_GCC_BUILTIN        (BUILT_IN_PREFETCH, "prefetch", BT_FN_VOID_CONST_PTR_VAR, ATTR_NULL)
 316 DEF_GCC_BUILTIN        (BUILT_IN_RETURN, "return", BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LIST)
 317 DEF_GCC_BUILTIN        (BUILT_IN_RETURN_ADDRESS, "return_address", BT_FN_PTR_UNSIGNED, ATTR_NULL)
 318 DEF_GCC_BUILTIN        (BUILT_IN_SAVEREGS, "saveregs", BT_FN_PTR_VAR, ATTR_NULL)
 319 DEF_GCC_BUILTIN        (BUILT_IN_SETJMP, "setjmp", BT_FN_INT_PTR, ATTR_NULL)
 320 DEF_GCC_BUILTIN        (BUILT_IN_STDARG_START, "stdarg_start", BT_FN_VOID_VALIST_REF_VAR, ATTR_NULL)
 321 DEF_EXT_LIB_BUILTIN    (BUILT_IN_STRFMON, "strfmon", BT_FN_SSIZE_STRING_SIZE_CONST_STRING_VAR, ATTR_FORMAT_STRFMON_3_4)
 322 DEF_LIB_BUILTIN        (BUILT_IN_STRFTIME, "strftime", BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR, ATTR_FORMAT_STRFTIME_3_0)
 323 DEF_GCC_BUILTIN        (BUILT_IN_TRAP, "trap", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LIST)
 324 DEF_GCC_BUILTIN        (BUILT_IN_UNWIND_INIT, "unwind_init", BT_FN_VOID, ATTR_NULL)
 325 DEF_GCC_BUILTIN        (BUILT_IN_VA_COPY, "va_copy", BT_FN_VOID_VALIST_REF_VALIST_ARG, ATTR_NULL)
 326 DEF_GCC_BUILTIN        (BUILT_IN_VA_END, "va_end", BT_FN_VOID_VALIST_REF, ATTR_NULL)
 327 DEF_GCC_BUILTIN        (BUILT_IN_VA_START, "va_start", BT_FN_VOID_VALIST_REF_VAR, ATTR_NULL)
 328 DEF_EXT_LIB_BUILTIN    (BUILT_IN__EXIT, "_exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
 329 DEF_C99_BUILTIN        (BUILT_IN__EXIT2, "_Exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)