/* bcmp, bcopy and bzero have traditionally accepted NULL pointers
when the length parameter is zero, so don't apply attribute "nonnull". */
+DEF_C99_BUILTIN (BUILT_IN__EXIT2, "_Exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
+DEF_EXT_LIB_BUILTIN (BUILT_IN__EXIT, "_exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
DEF_LIB_BUILTIN (BUILT_IN_ABORT, "abort", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LIST)
DEF_LIB_BUILTIN (BUILT_IN_ABS, "abs", BT_FN_INT_INT, ATTR_CONST_NOTHROW_LIST)
DEF_GCC_BUILTIN (BUILT_IN_AGGREGATE_INCOMING_ADDRESS, "aggregate_incoming_address", BT_FN_PTR_VAR, ATTR_NULL)
DEF_GCC_BUILTIN (BUILT_IN_APPLY_ARGS, "apply_args", BT_FN_PTR_VAR, ATTR_NULL)
DEF_GCC_BUILTIN (BUILT_IN_ARGS_INFO, "args_info", BT_FN_INT_INT, ATTR_NULL)
DEF_LIB_BUILTIN (BUILT_IN_ATAN, "atan", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
-DEF_C99_C90RES_BUILTIN (BUILT_IN_ATANF, "atanf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
-DEF_C99_C90RES_BUILTIN (BUILT_IN_ATANL, "atanl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_LIB_BUILTIN (BUILT_IN_ATAN2, "atan2", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_C90RES_BUILTIN (BUILT_IN_ATAN2F, "atan2f", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_C90RES_BUILTIN (BUILT_IN_ATAN2L, "atan2l", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
+DEF_C99_C90RES_BUILTIN (BUILT_IN_ATANF, "atanf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
+DEF_C99_C90RES_BUILTIN (BUILT_IN_ATANL, "atanl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_EXT_LIB_BUILTIN (BUILT_IN_BCMP, "bcmp", BT_FN_INT_CONST_PTR_CONST_PTR_SIZE, ATTR_PURE_NOTHROW_LIST)
DEF_EXT_LIB_BUILTIN (BUILT_IN_BCOPY, "bcopy", BT_FN_VOID_CONST_PTR_PTR_SIZE, ATTR_NOTHROW_LIST)
DEF_EXT_LIB_BUILTIN (BUILT_IN_BZERO, "bzero", BT_FN_VOID_PTR_SIZE, ATTR_NOTHROW_LIST)
DEF_GCC_BUILTIN (BUILT_IN_EH_RETURN, "eh_return", BT_FN_VOID_PTRMODE_PTR, ATTR_NORETURN_NOTHROW_LIST)
DEF_GCC_BUILTIN (BUILT_IN_EH_RETURN_DATA_REGNO, "eh_return_data_regno", BT_FN_INT_INT, ATTR_NULL)
DEF_LIB_BUILTIN (BUILT_IN_EXIT, "exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
-DEF_EXT_LIB_BUILTIN (BUILT_IN__EXIT, "_exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
-DEF_C99_BUILTIN (BUILT_IN__EXIT2, "_Exit", BT_FN_VOID_INT, ATTR_NORETURN_NOTHROW_LIST)
DEF_LIB_BUILTIN (BUILT_IN_EXP, "exp", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
+DEF_GCC_BUILTIN (BUILT_IN_EXPECT, "expect", BT_FN_LONG_LONG_LONG, ATTR_NULL)
DEF_C99_C90RES_BUILTIN (BUILT_IN_EXPF, "expf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_C90RES_BUILTIN (BUILT_IN_EXPL, "expl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
-DEF_GCC_BUILTIN (BUILT_IN_EXPECT, "expect", BT_FN_LONG_LONG_LONG, ATTR_NULL)
DEF_GCC_BUILTIN (BUILT_IN_EXTRACT_RETURN_ADDR, "extract_return_addr", BT_FN_PTR_PTR, ATTR_NULL)
DEF_LIB_BUILTIN (BUILT_IN_FABS, "fabs", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_FABSF, "fabsf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_SINL, "sinl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_SNPRINTF, "snprintf", BT_FN_INT_STRING_SIZE_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_3_4)
DEF_LIB_BUILTIN (BUILT_IN_SPRINTF, "sprintf", BT_FN_INT_STRING_CONST_STRING_VAR, ATTR_FORMAT_PRINTF_2_3)
+DEF_LIB_BUILTIN (BUILT_IN_SQRT, "sqrt", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
+DEF_C99_C90RES_BUILTIN (BUILT_IN_SQRTF, "sqrtf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
+DEF_C99_C90RES_BUILTIN (BUILT_IN_SQRTL, "sqrtl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_LIB_BUILTIN (BUILT_IN_SSCANF, "sscanf", BT_FN_INT_CONST_STRING_CONST_STRING_VAR, ATTR_FORMAT_SCANF_2_3)
DEF_GCC_BUILTIN (BUILT_IN_STDARG_START, "stdarg_start", BT_FN_VOID_VALIST_REF_VAR, ATTR_NULL)
DEF_EXT_LIB_BUILTIN (BUILT_IN_STPCPY, "stpcpy", BT_FN_STRING_STRING_CONST_STRING, ATTR_NOTHROW_NONNULL_1_2)
DEF_LIB_BUILTIN (BUILT_IN_STRRCHR, "strrchr", BT_FN_STRING_CONST_STRING_INT, ATTR_PURE_NOTHROW_NONNULL_1)
DEF_LIB_BUILTIN (BUILT_IN_STRSPN, "strspn", BT_FN_SIZE_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
DEF_LIB_BUILTIN (BUILT_IN_STRSTR, "strstr", BT_FN_STRING_CONST_STRING_CONST_STRING, ATTR_PURE_NOTHROW_NONNULL_1_2)
-DEF_LIB_BUILTIN (BUILT_IN_SQRT, "sqrt", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
-DEF_C99_C90RES_BUILTIN (BUILT_IN_SQRTF, "sqrtf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
-DEF_C99_C90RES_BUILTIN (BUILT_IN_SQRTL, "sqrtl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_LIB_BUILTIN (BUILT_IN_TAN, "tan", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_C99_C90RES_BUILTIN (BUILT_IN_TANF, "tanf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
DEF_C99_C90RES_BUILTIN (BUILT_IN_TANL, "tanl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)