[libcxx-commits] [libcxx] 40d8f87 - [libc++] Assume that builtins for math.h functions are available
Nikolas Klauser via libcxx-commits
libcxx-commits at lists.llvm.org
Tue Nov 22 11:36:05 PST 2022
Author: Nikolas Klauser
Date: 2022-11-22T20:35:47+01:00
New Revision: 40d8f87809dcb7d8dca089eaa3f7a0da95559817
URL: https://github.com/llvm/llvm-project/commit/40d8f87809dcb7d8dca089eaa3f7a0da95559817
DIFF: https://github.com/llvm/llvm-project/commit/40d8f87809dcb7d8dca089eaa3f7a0da95559817.diff
LOG: [libc++] Assume that builtins for math.h functions are available
All supported compilers support the builtins, so this removes dead code and simplifies a lot of the functions through that.
Reviewed By: ldionne, #libc, EricWF
Spies: EricWF, michaelplatings, libcxx-commits
Differential Revision: https://reviews.llvm.org/D135781
Added:
Modified:
libcxx/include/math.h
Removed:
################################################################################
diff --git a/libcxx/include/math.h b/libcxx/include/math.h
index 0b07273920f7..23a9f600d166 100644
--- a/libcxx/include/math.h
+++ b/libcxx/include/math.h
@@ -318,11 +318,7 @@ extern "C++" {
template <class _A1>
_LIBCPP_HIDE_FROM_ABI bool __libcpp_signbit(_A1 __x) _NOEXCEPT {
-# if __has_builtin(__builtin_signbit)
return __builtin_signbit(__x);
-# else
- return signbit(__x);
-# endif
}
# undef signbit
@@ -377,11 +373,7 @@ inline _LIBCPP_HIDE_FROM_ABI
template <class _A1>
_LIBCPP_HIDE_FROM_ABI int __libcpp_fpclassify(_A1 __x) _NOEXCEPT {
-# if __has_builtin(__builtin_fpclassify)
return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, __x);
-# else
- return fpclassify(__x);
-# endif
}
# undef fpclassify
@@ -420,11 +412,7 @@ fpclassify(_A1 __x) _NOEXCEPT {
template <class _A1>
_LIBCPP_HIDE_FROM_ABI bool __libcpp_isfinite(_A1 __x) _NOEXCEPT {
-# if __has_builtin(__builtin_isfinite)
return __builtin_isfinite(__x);
-# else
- return isfinite(__x);
-# endif
}
# undef isfinite
@@ -451,11 +439,7 @@ inline _LIBCPP_HIDE_FROM_ABI
template <class _A1>
_LIBCPP_HIDE_FROM_ABI bool __libcpp_isinf(_A1 __x) _NOEXCEPT {
-# if __has_builtin(__builtin_isinf)
return __builtin_isinf(__x);
-# else
- return isinf(__x);
-# endif
}
# undef isinf
@@ -490,11 +474,7 @@ inline _LIBCPP_HIDE_FROM_ABI bool isinf(long double __x) _NOEXCEPT { return __li
template <class _A1>
_LIBCPP_HIDE_FROM_ABI bool __libcpp_isnan(_A1 __x) _NOEXCEPT {
-# if __has_builtin(__builtin_isnan)
return __builtin_isnan(__x);
-# else
- return isnan(__x);
-# endif
}
# undef isnan
@@ -526,11 +506,7 @@ inline _LIBCPP_HIDE_FROM_ABI bool isnan(long double __x) _NOEXCEPT { return __li
template <class _A1>
_LIBCPP_HIDE_FROM_ABI bool __libcpp_isnormal(_A1 __x) _NOEXCEPT {
-# if __has_builtin(__builtin_isnormal)
return __builtin_isnormal(__x);
-# else
- return isnormal(__x);
-# endif
}
# undef isnormal
@@ -1017,43 +993,23 @@ cbrt(_A1 __x) _NOEXCEPT {return ::cbrt((double)__x);}
// copysign
-#if __has_builtin(__builtin_copysignf)
_LIBCPP_CONSTEXPR
-#endif
inline _LIBCPP_HIDE_FROM_ABI float __libcpp_copysign(float __x, float __y) _NOEXCEPT {
-#if __has_builtin(__builtin_copysignf)
return __builtin_copysignf(__x, __y);
-#else
- return ::copysignf(__x, __y);
-#endif
}
-#if __has_builtin(__builtin_copysign)
_LIBCPP_CONSTEXPR
-#endif
inline _LIBCPP_HIDE_FROM_ABI double __libcpp_copysign(double __x, double __y) _NOEXCEPT {
-#if __has_builtin(__builtin_copysign)
return __builtin_copysign(__x, __y);
-#else
- return ::copysign(__x, __y);
-#endif
}
-#if __has_builtin(__builtin_copysignl)
_LIBCPP_CONSTEXPR
-#endif
inline _LIBCPP_HIDE_FROM_ABI long double __libcpp_copysign(long double __x, long double __y) _NOEXCEPT {
-#if __has_builtin(__builtin_copysignl)
return __builtin_copysignl(__x, __y);
-#else
- return ::copysignl(__x, __y);
-#endif
}
template <class _A1, class _A2>
-#if __has_builtin(__builtin_copysign)
_LIBCPP_CONSTEXPR
-#endif
inline _LIBCPP_HIDE_FROM_ABI
typename std::__enable_if_t
<
@@ -1065,11 +1021,7 @@ __libcpp_copysign(_A1 __x, _A2 __y) _NOEXCEPT {
typedef typename std::__promote<_A1, _A2>::type __result_type;
static_assert((!(std::_IsSame<_A1, __result_type>::value &&
std::_IsSame<_A2, __result_type>::value)), "");
-#if __has_builtin(__builtin_copysign)
return __builtin_copysign((__result_type)__x, (__result_type)__y);
-#else
- return ::copysign((__result_type)__x, (__result_type)__y);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI float copysign(float __x, float __y) _NOEXCEPT {
@@ -1157,19 +1109,11 @@ fdim(_A1 __x, _A2 __y) _NOEXCEPT
inline _LIBCPP_HIDE_FROM_ABI float fma(float __x, float __y, float __z) _NOEXCEPT
{
-#if __has_builtin(__builtin_fmaf)
return __builtin_fmaf(__x, __y, __z);
-#else
- return ::fmaf(__x, __y, __z);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long double fma(long double __x, long double __y, long double __z) _NOEXCEPT
{
-#if __has_builtin(__builtin_fmal)
return __builtin_fmal(__x, __y, __z);
-#else
- return ::fmal(__x, __y, __z);
-#endif
}
template <class _A1, class _A2, class _A3>
@@ -1187,11 +1131,7 @@ fma(_A1 __x, _A2 __y, _A3 __z) _NOEXCEPT
static_assert((!(std::_IsSame<_A1, __result_type>::value &&
std::_IsSame<_A2, __result_type>::value &&
std::_IsSame<_A3, __result_type>::value)), "");
-#if __has_builtin(__builtin_fma)
return __builtin_fma((__result_type)__x, (__result_type)__y, (__result_type)__z);
-#else
- return ::fma((__result_type)__x, (__result_type)__y, (__result_type)__z);
-#endif
}
// fmax
@@ -1281,19 +1221,11 @@ lgamma(_A1 __x) _NOEXCEPT {return ::lgamma((double)__x);}
inline _LIBCPP_HIDE_FROM_ABI long long llrint(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_llrintf)
return __builtin_llrintf(__x);
-#else
- return ::llrintf(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long long llrint(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_llrintl)
return __builtin_llrintl(__x);
-#else
- return ::llrintl(__x);
-#endif
}
template <class _A1>
@@ -1301,30 +1233,18 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, long long>::type
llrint(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_llrint)
return __builtin_llrint((double)__x);
-#else
- return ::llrint((double)__x);
-#endif
}
// llround
inline _LIBCPP_HIDE_FROM_ABI long long llround(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_llroundf)
return __builtin_llroundf(__x);
-#else
- return ::llroundf(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long long llround(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_llroundl)
return __builtin_llroundl(__x);
-#else
- return ::llroundl(__x);
-#endif
}
template <class _A1>
@@ -1332,11 +1252,7 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, long long>::type
llround(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_llround)
return __builtin_llround((double)__x);
-#else
- return ::llround((double)__x);
-#endif
}
// log1p
@@ -1373,19 +1289,11 @@ logb(_A1 __x) _NOEXCEPT {return ::logb((double)__x);}
inline _LIBCPP_HIDE_FROM_ABI long lrint(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_lrintf)
return __builtin_lrintf(__x);
-#else
- return ::lrintf(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long lrint(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_lrintl)
return __builtin_lrintl(__x);
-#else
- return ::lrintl(__x);
-#endif
}
template <class _A1>
@@ -1393,30 +1301,18 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, long>::type
lrint(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_lrint)
return __builtin_lrint((double)__x);
-#else
- return ::lrint((double)__x);
-#endif
}
// lround
inline _LIBCPP_HIDE_FROM_ABI long lround(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_lroundf)
return __builtin_lroundf(__x);
-#else
- return ::lroundf(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long lround(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_lroundl)
return __builtin_lroundl(__x);
-#else
- return ::lroundl(__x);
-#endif
}
template <class _A1>
@@ -1424,11 +1320,7 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, long>::type
lround(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_lround)
return __builtin_lround((double)__x);
-#else
- return ::lround((double)__x);
-#endif
}
// nan
@@ -1520,19 +1412,11 @@ remquo(_A1 __x, _A2 __y, int* __z) _NOEXCEPT
inline _LIBCPP_HIDE_FROM_ABI float rint(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_rintf)
return __builtin_rintf(__x);
-#else
- return ::rintf(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long double rint(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_rintl)
return __builtin_rintl(__x);
-#else
- return ::rintl(__x);
-#endif
}
template <class _A1>
@@ -1540,30 +1424,18 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, double>::type
rint(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_rint)
return __builtin_rint((double)__x);
-#else
- return ::rint((double)__x);
-#endif
}
// round
inline _LIBCPP_HIDE_FROM_ABI float round(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_round)
return __builtin_round(__x);
-#else
- return ::round(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long double round(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_roundl)
return __builtin_roundl(__x);
-#else
- return ::roundl(__x);
-#endif
}
template <class _A1>
@@ -1571,11 +1443,7 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, double>::type
round(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_round)
return __builtin_round((double)__x);
-#else
- return ::round((double)__x);
-#endif
}
// scalbln
@@ -1612,19 +1480,11 @@ tgamma(_A1 __x) _NOEXCEPT {return ::tgamma((double)__x);}
inline _LIBCPP_HIDE_FROM_ABI float trunc(float __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_trunc)
return __builtin_trunc(__x);
-#else
- return ::trunc(__x);
-#endif
}
inline _LIBCPP_HIDE_FROM_ABI long double trunc(long double __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_truncl)
return __builtin_truncl(__x);
-#else
- return ::truncl(__x);
-#endif
}
template <class _A1>
@@ -1632,11 +1492,7 @@ inline _LIBCPP_HIDE_FROM_ABI
typename std::enable_if<std::is_integral<_A1>::value, double>::type
trunc(_A1 __x) _NOEXCEPT
{
-#if __has_builtin(__builtin_trunc)
return __builtin_trunc((double)__x);
-#else
- return ::trunc((double)__x);
-#endif
}
} // extern "C++"
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