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https://github.com/capstone-engine/llvm-capstone.git
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[libc++] Use builtins in more math.h functions.
Not using builtins doesn't always imply worse code, but for e. g. isinf, this is 30%+ faster. Before: name time/op BM_isinf 2.14ns ± 2% After: name time/op BM_isinf 1.33ns ± 2% Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D88854
This commit is contained in:
Ilya Tokar
parent
19fc8eede4
commit
c81d52997a
@ -318,7 +318,11 @@ _LIBCPP_INLINE_VISIBILITY
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bool
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__libcpp_signbit(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_signbit)
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return __builtin_signbit(__lcpp_x);
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#else
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return signbit(__lcpp_x);
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#endif
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}
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#undef signbit
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@ -380,7 +384,12 @@ _LIBCPP_INLINE_VISIBILITY
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int
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__libcpp_fpclassify(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_fpclassify)
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return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL,
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FP_ZERO, __lcpp_x);
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#else
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return fpclassify(__lcpp_x);
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#endif
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}
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#undef fpclassify
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@ -426,7 +435,11 @@ _LIBCPP_INLINE_VISIBILITY
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bool
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__libcpp_isfinite(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_isfinite)
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return __builtin_isfinite(__lcpp_x);
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#else
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return isfinite(__lcpp_x);
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#endif
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}
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#undef isfinite
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@ -460,7 +473,11 @@ _LIBCPP_INLINE_VISIBILITY
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bool
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__libcpp_isinf(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_isinf)
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return __builtin_isinf(__lcpp_x);
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#else
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return isinf(__lcpp_x);
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#endif
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}
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#undef isinf
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@ -556,7 +573,11 @@ _LIBCPP_INLINE_VISIBILITY
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bool
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__libcpp_isnormal(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_isnormal)
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return __builtin_isnormal(__lcpp_x);
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#else
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return isnormal(__lcpp_x);
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#endif
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}
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#undef isnormal
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@ -1101,11 +1122,19 @@ cbrt(_A1 __lcpp_x) _NOEXCEPT {return ::cbrt((double)__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY float copysign(float __lcpp_x,
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float __lcpp_y) _NOEXCEPT {
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#if __has_builtin(__builtin_copysignf)
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return __builtin_copysignf(__lcpp_x, __lcpp_y);
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#else
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return ::copysignf(__lcpp_x, __lcpp_y);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long double
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copysign(long double __lcpp_x, long double __lcpp_y) _NOEXCEPT {
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#if __has_builtin(__builtin_copysignl)
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return __builtin_copysignl(__lcpp_x, __lcpp_y);
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#else
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return ::copysignl(__lcpp_x, __lcpp_y);
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#endif
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}
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template <class _A1, class _A2>
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@ -1121,7 +1150,11 @@ copysign(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
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typedef typename std::__promote<_A1, _A2>::type __result_type;
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static_assert((!(std::_IsSame<_A1, __result_type>::value &&
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std::_IsSame<_A2, __result_type>::value)), "");
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#if __has_builtin(__builtin_copysign)
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return __builtin_copysign((__result_type)__lcpp_x, (__result_type)__lcpp_y);
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#else
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return ::copysign((__result_type)__lcpp_x, (__result_type)__lcpp_y);
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#endif
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}
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// erf
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@ -1187,8 +1220,22 @@ fdim(_A1 __lcpp_x, _A2 __lcpp_y) _NOEXCEPT
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// fma
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inline _LIBCPP_INLINE_VISIBILITY float fma(float __lcpp_x, float __lcpp_y, float __lcpp_z) _NOEXCEPT {return ::fmaf(__lcpp_x, __lcpp_y, __lcpp_z);}
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inline _LIBCPP_INLINE_VISIBILITY long double fma(long double __lcpp_x, long double __lcpp_y, long double __lcpp_z) _NOEXCEPT {return ::fmal(__lcpp_x, __lcpp_y, __lcpp_z);}
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inline _LIBCPP_INLINE_VISIBILITY float fma(float __lcpp_x, float __lcpp_y, float __lcpp_z) _NOEXCEPT
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{
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#if __has_builtin(__builtin_fmaf)
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return __builtin_fmaf(__lcpp_x, __lcpp_y, __lcpp_z);
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#else
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return ::fmaf(__lcpp_x, __lcpp_y, __lcpp_z);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long double fma(long double __lcpp_x, long double __lcpp_y, long double __lcpp_z) _NOEXCEPT
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{
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#if __has_builtin(__builtin_fmal)
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return __builtin_fmal(__lcpp_x, __lcpp_y, __lcpp_z);
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#else
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return ::fmal(__lcpp_x, __lcpp_y, __lcpp_z);
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#endif
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}
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template <class _A1, class _A2, class _A3>
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inline _LIBCPP_INLINE_VISIBILITY
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@ -1205,7 +1252,11 @@ fma(_A1 __lcpp_x, _A2 __lcpp_y, _A3 __lcpp_z) _NOEXCEPT
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static_assert((!(std::_IsSame<_A1, __result_type>::value &&
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std::_IsSame<_A2, __result_type>::value &&
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std::_IsSame<_A3, __result_type>::value)), "");
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#if __has_builtin(__builtin_fma)
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return __builtin_fma((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
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#else
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return ::fma((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
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#endif
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}
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// fmax
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@ -1293,23 +1344,65 @@ lgamma(_A1 __lcpp_x) _NOEXCEPT {return ::lgamma((double)__lcpp_x);}
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// llrint
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inline _LIBCPP_INLINE_VISIBILITY long long llrint(float __lcpp_x) _NOEXCEPT {return ::llrintf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long long llrint(long double __lcpp_x) _NOEXCEPT {return ::llrintl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long long llrint(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_llrintf)
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return __builtin_llrintf(__lcpp_x);
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#else
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return ::llrintf(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long long llrint(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_llrintl)
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return __builtin_llrintl(__lcpp_x);
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#else
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return ::llrintl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, long long>::type
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llrint(_A1 __lcpp_x) _NOEXCEPT {return ::llrint((double)__lcpp_x);}
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llrint(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_llrint)
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return __builtin_llrint((double)__lcpp_x);
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#else
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return ::llrint((double)__lcpp_x);
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#endif
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}
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// llround
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inline _LIBCPP_INLINE_VISIBILITY long long llround(float __lcpp_x) _NOEXCEPT {return ::llroundf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long long llround(long double __lcpp_x) _NOEXCEPT {return ::llroundl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long long llround(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_llroundf)
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return __builtin_llroundf(__lcpp_x);
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#else
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return ::llroundf(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long long llround(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_llroundl)
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return __builtin_llroundl(__lcpp_x);
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#else
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return ::llroundl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, long long>::type
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llround(_A1 __lcpp_x) _NOEXCEPT {return ::llround((double)__lcpp_x);}
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llround(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_llround)
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return __builtin_llround((double)__lcpp_x);
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#else
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return ::llround((double)__lcpp_x);
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#endif
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}
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// log1p
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@ -1343,23 +1436,65 @@ logb(_A1 __lcpp_x) _NOEXCEPT {return ::logb((double)__lcpp_x);}
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// lrint
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inline _LIBCPP_INLINE_VISIBILITY long lrint(float __lcpp_x) _NOEXCEPT {return ::lrintf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long lrint(long double __lcpp_x) _NOEXCEPT {return ::lrintl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long lrint(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_lrintf)
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return __builtin_lrintf(__lcpp_x);
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#else
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return ::lrintf(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long lrint(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_lrintl)
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return __builtin_lrintl(__lcpp_x);
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#else
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return ::lrintl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, long>::type
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lrint(_A1 __lcpp_x) _NOEXCEPT {return ::lrint((double)__lcpp_x);}
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lrint(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_lrint)
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return __builtin_lrint((double)__lcpp_x);
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#else
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return ::lrint((double)__lcpp_x);
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#endif
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}
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// lround
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inline _LIBCPP_INLINE_VISIBILITY long lround(float __lcpp_x) _NOEXCEPT {return ::lroundf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long lround(long double __lcpp_x) _NOEXCEPT {return ::lroundl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long lround(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_lroundf)
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return __builtin_lroundf(__lcpp_x);
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#else
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return ::lroundf(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long lround(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_lroundl)
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return __builtin_lroundl(__lcpp_x);
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#else
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return ::lroundl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, long>::type
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lround(_A1 __lcpp_x) _NOEXCEPT {return ::lround((double)__lcpp_x);}
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lround(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_lround)
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return __builtin_lround((double)__lcpp_x);
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#else
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return ::lround((double)__lcpp_x);
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#endif
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}
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// nan
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@ -1448,23 +1583,65 @@ remquo(_A1 __lcpp_x, _A2 __lcpp_y, int* __lcpp_z) _NOEXCEPT
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// rint
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inline _LIBCPP_INLINE_VISIBILITY float rint(float __lcpp_x) _NOEXCEPT {return ::rintf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long double rint(long double __lcpp_x) _NOEXCEPT {return ::rintl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY float rint(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_rintf)
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return __builtin_rintf(__lcpp_x);
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#else
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return ::rintf(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long double rint(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_rintl)
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return __builtin_rintl(__lcpp_x);
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#else
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return ::rintl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, double>::type
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rint(_A1 __lcpp_x) _NOEXCEPT {return ::rint((double)__lcpp_x);}
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rint(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_rint)
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return __builtin_rint((double)__lcpp_x);
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#else
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return ::rint((double)__lcpp_x);
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#endif
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}
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// round
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inline _LIBCPP_INLINE_VISIBILITY float round(float __lcpp_x) _NOEXCEPT {return ::roundf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long double round(long double __lcpp_x) _NOEXCEPT {return ::roundl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY float round(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_round)
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return __builtin_round(__lcpp_x);
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#else
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return ::round(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long double round(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_roundl)
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return __builtin_roundl(__lcpp_x);
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#else
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return ::roundl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, double>::type
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round(_A1 __lcpp_x) _NOEXCEPT {return ::round((double)__lcpp_x);}
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round(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_round)
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return __builtin_round((double)__lcpp_x);
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#else
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return ::round((double)__lcpp_x);
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#endif
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}
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// scalbln
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@ -1498,13 +1675,34 @@ tgamma(_A1 __lcpp_x) _NOEXCEPT {return ::tgamma((double)__lcpp_x);}
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// trunc
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inline _LIBCPP_INLINE_VISIBILITY float trunc(float __lcpp_x) _NOEXCEPT {return ::truncf(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY long double trunc(long double __lcpp_x) _NOEXCEPT {return ::truncl(__lcpp_x);}
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inline _LIBCPP_INLINE_VISIBILITY float trunc(float __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_trunc)
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return __builtin_trunc(__lcpp_x);
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#else
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return ::trunc(__lcpp_x);
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#endif
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}
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inline _LIBCPP_INLINE_VISIBILITY long double trunc(long double __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_truncl)
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return __builtin_truncl(__lcpp_x);
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#else
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return ::truncl(__lcpp_x);
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#endif
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}
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template <class _A1>
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inline _LIBCPP_INLINE_VISIBILITY
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typename std::enable_if<std::is_integral<_A1>::value, double>::type
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trunc(_A1 __lcpp_x) _NOEXCEPT {return ::trunc((double)__lcpp_x);}
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trunc(_A1 __lcpp_x) _NOEXCEPT
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{
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#if __has_builtin(__builtin_trunc)
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return __builtin_trunc((double)__lcpp_x);
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#else
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return ::trunc((double)__lcpp_x);
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#endif
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}
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} // extern "C++"
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