Hello,
coming back to https://gcc.gnu.org/ml/gcc-patches/2014-02/msg01378.html ,
Richard wanted a complete set of fenv functions instead of just the 2 I
was interested in. However, most functions in fenv.h handle a struch
fenv_t or fexcept_t, which makes them inconvenient to handle as builtins.
Similarly, I don't see div as a builtin in that file, only FILE* has
special code, but that doesn't seem worth the trouble here. So I am only
declaring the 5 "simple" functions, with minimal properties: leaf,
nothrow, and for fegetround pure (glibc already declares it that way). We
can then discuss the safety of future optimizations on a case by case
basis.
2017-05-29 Marc Glisse <marc.gli...@inria.fr>
* builtins.def (BUILT_IN_FECLEAREXCEPT, BUILT_IN_FEGETROUND,
BUILT_IN_FERAISEEXCEPT, BUILT_IN_FESETROUND,
BUILT_IN_FETESTEXCEPT): New builtins.
--
Marc GlisseIndex: gcc/builtins.def
===================================================================
--- gcc/builtins.def (revision 248468)
+++ gcc/builtins.def (working copy)
@@ -357,20 +357,25 @@ DEF_C99_C90RES_BUILTIN (BUILT_IN_FABSF,
DEF_C99_C90RES_BUILTIN (BUILT_IN_FABSL, "fabsl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
#define FABS_TYPE(F) BT_FN_##F##_##F
DEF_GCC_FLOATN_NX_BUILTINS (BUILT_IN_FABS, "fabs", FABS_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
#undef FABS_TYPE
DEF_GCC_BUILTIN (BUILT_IN_FABSD32, "fabsd32", BT_FN_DFLOAT32_DFLOAT32, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_GCC_BUILTIN (BUILT_IN_FABSD64, "fabsd64", BT_FN_DFLOAT64_DFLOAT64, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_GCC_BUILTIN (BUILT_IN_FABSD128, "fabsd128", BT_FN_DFLOAT128_DFLOAT128, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_FDIM, "fdim", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_BUILTIN (BUILT_IN_FDIMF, "fdimf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_BUILTIN (BUILT_IN_FDIML, "fdiml", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
+DEF_C99_BUILTIN (BUILT_IN_FECLEAREXCEPT, "feclearexcept", BT_FN_INT_INT, ATTR_NOTHROW_LEAF_LIST)
+DEF_C99_BUILTIN (BUILT_IN_FEGETROUND, "fegetround", BT_FN_INT, ATTR_PURE_NOTHROW_LEAF_LIST)
+DEF_C99_BUILTIN (BUILT_IN_FERAISEEXCEPT, "feraiseexcept", BT_FN_INT_INT, ATTR_NOTHROW_LEAF_LIST)
+DEF_C99_BUILTIN (BUILT_IN_FESETROUND, "fesetround", BT_FN_INT_INT, ATTR_NOTHROW_LEAF_LIST)
+DEF_C99_BUILTIN (BUILT_IN_FETESTEXCEPT, "fetestexcept", BT_FN_INT_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_LIB_BUILTIN (BUILT_IN_FLOOR, "floor", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_FLOORF, "floorf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_FLOORL, "floorl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_FMA, "fma", BT_FN_DOUBLE_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_FMAF, "fmaf", BT_FN_FLOAT_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_FMAL, "fmal", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_FMAX, "fmax", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_FMAXF, "fmaxf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_FMAXL, "fmaxl", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_FMIN, "fmin", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
