
(FPCore (ux uy maxCos) :precision binary32 (let* ((t_0 (+ (- 1.0 ux) (* ux maxCos)))) (* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* t_0 t_0))))))
float code(float ux, float uy, float maxCos) {
float t_0 = (1.0f - ux) + (ux * maxCos);
return sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf((1.0f - (t_0 * t_0)));
}
function code(ux, uy, maxCos) t_0 = Float32(Float32(Float32(1.0) - ux) + Float32(ux * maxCos)) return Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0)))) end
function tmp = code(ux, uy, maxCos) t_0 = (single(1.0) - ux) + (ux * maxCos); tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt((single(1.0) - (t_0 * t_0))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - ux\right) + ux \cdot maxCos\\
\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{1 - t_0 \cdot t_0}
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 12 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (ux uy maxCos) :precision binary32 (let* ((t_0 (+ (- 1.0 ux) (* ux maxCos)))) (* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* t_0 t_0))))))
float code(float ux, float uy, float maxCos) {
float t_0 = (1.0f - ux) + (ux * maxCos);
return sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf((1.0f - (t_0 * t_0)));
}
function code(ux, uy, maxCos) t_0 = Float32(Float32(Float32(1.0) - ux) + Float32(ux * maxCos)) return Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0)))) end
function tmp = code(ux, uy, maxCos) t_0 = (single(1.0) - ux) + (ux * maxCos); tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt((single(1.0) - (t_0 * t_0))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(1 - ux\right) + ux \cdot maxCos\\
\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{1 - t_0 \cdot t_0}
\end{array}
\end{array}
(FPCore (ux uy maxCos) :precision binary32 (* (sin (cbrt (* (pow (* uy 2.0) 3.0) (pow PI 3.0)))) (sqrt (- (* ux (fma maxCos -2.0 2.0)) (* ux (* ux (pow (+ maxCos -1.0) 2.0)))))))
float code(float ux, float uy, float maxCos) {
return sinf(cbrtf((powf((uy * 2.0f), 3.0f) * powf(((float) M_PI), 3.0f)))) * sqrtf(((ux * fmaf(maxCos, -2.0f, 2.0f)) - (ux * (ux * powf((maxCos + -1.0f), 2.0f)))));
}
function code(ux, uy, maxCos) return Float32(sin(cbrt(Float32((Float32(uy * Float32(2.0)) ^ Float32(3.0)) * (Float32(pi) ^ Float32(3.0))))) * sqrt(Float32(Float32(ux * fma(maxCos, Float32(-2.0), Float32(2.0))) - Float32(ux * Float32(ux * (Float32(maxCos + Float32(-1.0)) ^ Float32(2.0))))))) end
\begin{array}{l}
\\
\sin \left(\sqrt[3]{{\left(uy \cdot 2\right)}^{3} \cdot {\pi}^{3}}\right) \cdot \sqrt{ux \cdot \mathsf{fma}\left(maxCos, -2, 2\right) - ux \cdot \left(ux \cdot {\left(maxCos + -1\right)}^{2}\right)}
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
cancel-sign-sub-inv98.3%
metadata-eval98.3%
mul-1-neg98.3%
unsub-neg98.3%
+-commutative98.3%
*-commutative98.3%
fma-def98.3%
unpow298.3%
associate-*l*98.3%
sub-neg98.3%
metadata-eval98.3%
Simplified98.3%
associate-*r*98.3%
add-cbrt-cube98.3%
add-cbrt-cube98.3%
cbrt-unprod98.4%
pow398.4%
pow398.4%
Applied egg-rr98.4%
Final simplification98.4%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (cbrt (* (pow (* uy 2.0) 3.0) (pow PI 3.0))))
(sqrt
(-
(-
(- (* 2.0 ux) (* (* ux maxCos) (* ux maxCos)))
(* maxCos (* 2.0 (- ux (* ux ux)))))
(* ux ux)))))
float code(float ux, float uy, float maxCos) {
return sinf(cbrtf((powf((uy * 2.0f), 3.0f) * powf(((float) M_PI), 3.0f)))) * sqrtf(((((2.0f * ux) - ((ux * maxCos) * (ux * maxCos))) - (maxCos * (2.0f * (ux - (ux * ux))))) - (ux * ux)));
}
function code(ux, uy, maxCos) return Float32(sin(cbrt(Float32((Float32(uy * Float32(2.0)) ^ Float32(3.0)) * (Float32(pi) ^ Float32(3.0))))) * sqrt(Float32(Float32(Float32(Float32(Float32(2.0) * ux) - Float32(Float32(ux * maxCos) * Float32(ux * maxCos))) - Float32(maxCos * Float32(Float32(2.0) * Float32(ux - Float32(ux * ux))))) - Float32(ux * ux)))) end
\begin{array}{l}
\\
\sin \left(\sqrt[3]{{\left(uy \cdot 2\right)}^{3} \cdot {\pi}^{3}}\right) \cdot \sqrt{\left(\left(2 \cdot ux - \left(ux \cdot maxCos\right) \cdot \left(ux \cdot maxCos\right)\right) - maxCos \cdot \left(2 \cdot \left(ux - ux \cdot ux\right)\right)\right) - ux \cdot ux}
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around -inf 58.1%
+-commutative58.1%
mul-1-neg58.1%
unsub-neg58.1%
unpow258.1%
mul-1-neg58.1%
unsub-neg58.1%
+-commutative58.1%
*-commutative58.1%
fma-def58.1%
Simplified58.1%
Taylor expanded in maxCos around -inf 98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
*-commutative98.2%
unpow298.2%
unpow298.2%
unswap-sqr98.2%
distribute-lft-out--98.2%
unpow298.2%
Simplified98.2%
associate-*r*98.3%
add-cbrt-cube98.3%
add-cbrt-cube98.3%
cbrt-unprod98.4%
pow398.4%
pow398.4%
Applied egg-rr98.4%
Final simplification98.4%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(-
(* ux (fma maxCos -2.0 2.0))
(* ux (* ux (* (+ maxCos -1.0) (+ maxCos -1.0))))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf(((ux * fmaf(maxCos, -2.0f, 2.0f)) - (ux * (ux * ((maxCos + -1.0f) * (maxCos + -1.0f))))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(ux * fma(maxCos, Float32(-2.0), Float32(2.0))) - Float32(ux * Float32(ux * Float32(Float32(maxCos + Float32(-1.0)) * Float32(maxCos + Float32(-1.0)))))))) end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \mathsf{fma}\left(maxCos, -2, 2\right) - ux \cdot \left(ux \cdot \left(\left(maxCos + -1\right) \cdot \left(maxCos + -1\right)\right)\right)}
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
cancel-sign-sub-inv98.3%
metadata-eval98.3%
mul-1-neg98.3%
unsub-neg98.3%
+-commutative98.3%
*-commutative98.3%
fma-def98.3%
unpow298.3%
associate-*l*98.3%
sub-neg98.3%
metadata-eval98.3%
Simplified98.3%
unpow298.3%
Applied egg-rr98.3%
Final simplification98.3%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sqrt
(-
(-
(- (* 2.0 ux) (* (* ux maxCos) (* ux maxCos)))
(* maxCos (* 2.0 (- ux (* ux ux)))))
(* ux ux)))
(sin (* uy (* 2.0 PI)))))
float code(float ux, float uy, float maxCos) {
return sqrtf(((((2.0f * ux) - ((ux * maxCos) * (ux * maxCos))) - (maxCos * (2.0f * (ux - (ux * ux))))) - (ux * ux))) * sinf((uy * (2.0f * ((float) M_PI))));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(Float32(Float32(Float32(Float32(2.0) * ux) - Float32(Float32(ux * maxCos) * Float32(ux * maxCos))) - Float32(maxCos * Float32(Float32(2.0) * Float32(ux - Float32(ux * ux))))) - Float32(ux * ux))) * sin(Float32(uy * Float32(Float32(2.0) * Float32(pi))))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt(((((single(2.0) * ux) - ((ux * maxCos) * (ux * maxCos))) - (maxCos * (single(2.0) * (ux - (ux * ux))))) - (ux * ux))) * sin((uy * (single(2.0) * single(pi)))); end
\begin{array}{l}
\\
\sqrt{\left(\left(2 \cdot ux - \left(ux \cdot maxCos\right) \cdot \left(ux \cdot maxCos\right)\right) - maxCos \cdot \left(2 \cdot \left(ux - ux \cdot ux\right)\right)\right) - ux \cdot ux} \cdot \sin \left(uy \cdot \left(2 \cdot \pi\right)\right)
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around -inf 58.1%
+-commutative58.1%
mul-1-neg58.1%
unsub-neg58.1%
unpow258.1%
mul-1-neg58.1%
unsub-neg58.1%
+-commutative58.1%
*-commutative58.1%
fma-def58.1%
Simplified58.1%
Taylor expanded in maxCos around -inf 98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
*-commutative98.2%
unpow298.2%
unpow298.2%
unswap-sqr98.2%
distribute-lft-out--98.2%
unpow298.2%
Simplified98.2%
Final simplification98.2%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(-
(- (- (* 2.0 ux) (* (* ux maxCos) (* ux maxCos))) (* 2.0 (* ux maxCos)))
(* ux ux)))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf(((((2.0f * ux) - ((ux * maxCos) * (ux * maxCos))) - (2.0f * (ux * maxCos))) - (ux * ux)));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(Float32(Float32(Float32(2.0) * ux) - Float32(Float32(ux * maxCos) * Float32(ux * maxCos))) - Float32(Float32(2.0) * Float32(ux * maxCos))) - Float32(ux * ux)))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt(((((single(2.0) * ux) - ((ux * maxCos) * (ux * maxCos))) - (single(2.0) * (ux * maxCos))) - (ux * ux))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{\left(\left(2 \cdot ux - \left(ux \cdot maxCos\right) \cdot \left(ux \cdot maxCos\right)\right) - 2 \cdot \left(ux \cdot maxCos\right)\right) - ux \cdot ux}
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around -inf 58.1%
+-commutative58.1%
mul-1-neg58.1%
unsub-neg58.1%
unpow258.1%
mul-1-neg58.1%
unsub-neg58.1%
+-commutative58.1%
*-commutative58.1%
fma-def58.1%
Simplified58.1%
Taylor expanded in maxCos around -inf 98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
*-commutative98.2%
unpow298.2%
unpow298.2%
unswap-sqr98.2%
distribute-lft-out--98.2%
unpow298.2%
Simplified98.2%
Taylor expanded in ux around 0 97.0%
*-commutative97.0%
Simplified97.0%
Final simplification97.0%
(FPCore (ux uy maxCos) :precision binary32 (if (<= maxCos 4.999999873689376e-6) (* (sin (* 2.0 (* uy PI))) (sqrt (* ux (- 2.0 ux)))) (* (sin (* uy (* 2.0 PI))) (sqrt (* ux (- 2.0 (* 2.0 maxCos)))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if (maxCos <= 4.999999873689376e-6f) {
tmp = sinf((2.0f * (uy * ((float) M_PI)))) * sqrtf((ux * (2.0f - ux)));
} else {
tmp = sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((ux * (2.0f - (2.0f * maxCos))));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (maxCos <= Float32(4.999999873689376e-6)) tmp = Float32(sin(Float32(Float32(2.0) * Float32(uy * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))); else tmp = Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos))))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if (maxCos <= single(4.999999873689376e-6)) tmp = sin((single(2.0) * (uy * single(pi)))) * sqrt((ux * (single(2.0) - ux))); else tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((ux * (single(2.0) - (single(2.0) * maxCos)))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;maxCos \leq 4.999999873689376 \cdot 10^{-6}:\\
\;\;\;\;\sin \left(2 \cdot \left(uy \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}\\
\mathbf{else}:\\
\;\;\;\;\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 - 2 \cdot maxCos\right)}\\
\end{array}
\end{array}
if maxCos < 4.99999987e-6Initial program 54.8%
associate-*l*54.8%
+-commutative54.8%
associate-+r-54.8%
fma-def54.8%
+-commutative54.8%
associate-+r-54.8%
fma-def54.8%
Simplified54.8%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
cancel-sign-sub-inv98.3%
metadata-eval98.3%
mul-1-neg98.3%
unsub-neg98.3%
+-commutative98.3%
*-commutative98.3%
fma-def98.3%
unpow298.3%
associate-*l*98.3%
sub-neg98.3%
metadata-eval98.3%
Simplified98.3%
associate-*r*98.3%
add-cbrt-cube98.3%
add-cbrt-cube98.3%
cbrt-unprod98.3%
pow398.4%
pow398.4%
Applied egg-rr98.4%
Taylor expanded in maxCos around 0 98.0%
unpow298.0%
distribute-rgt-out--98.0%
Simplified98.0%
if 4.99999987e-6 < maxCos Initial program 51.5%
associate-*l*51.5%
+-commutative51.5%
associate-+r-51.1%
fma-def51.1%
+-commutative51.1%
associate-+r-50.7%
fma-def50.7%
Simplified50.7%
Taylor expanded in ux around 0 81.1%
Final simplification95.6%
(FPCore (ux uy maxCos) :precision binary32 (if (<= maxCos 4.999999873689376e-6) (* (sin (* PI (* uy 2.0))) (sqrt (- (* 2.0 ux) (* ux ux)))) (* (sin (* uy (* 2.0 PI))) (sqrt (* ux (- 2.0 (* 2.0 maxCos)))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if (maxCos <= 4.999999873689376e-6f) {
tmp = sinf((((float) M_PI) * (uy * 2.0f))) * sqrtf(((2.0f * ux) - (ux * ux)));
} else {
tmp = sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((ux * (2.0f - (2.0f * maxCos))));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (maxCos <= Float32(4.999999873689376e-6)) tmp = Float32(sin(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(Float32(Float32(2.0) * ux) - Float32(ux * ux)))); else tmp = Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos))))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if (maxCos <= single(4.999999873689376e-6)) tmp = sin((single(pi) * (uy * single(2.0)))) * sqrt(((single(2.0) * ux) - (ux * ux))); else tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((ux * (single(2.0) - (single(2.0) * maxCos)))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;maxCos \leq 4.999999873689376 \cdot 10^{-6}:\\
\;\;\;\;\sin \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{2 \cdot ux - ux \cdot ux}\\
\mathbf{else}:\\
\;\;\;\;\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 - 2 \cdot maxCos\right)}\\
\end{array}
\end{array}
if maxCos < 4.99999987e-6Initial program 54.8%
associate-*l*54.8%
+-commutative54.8%
associate-+r-54.8%
fma-def54.8%
+-commutative54.8%
associate-+r-54.8%
fma-def54.8%
Simplified54.8%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
cancel-sign-sub-inv98.3%
metadata-eval98.3%
mul-1-neg98.3%
unsub-neg98.3%
+-commutative98.3%
*-commutative98.3%
fma-def98.3%
unpow298.3%
associate-*l*98.3%
sub-neg98.3%
metadata-eval98.3%
Simplified98.3%
Taylor expanded in maxCos around 0 98.0%
associate-*r*98.0%
unpow298.0%
Simplified98.0%
if 4.99999987e-6 < maxCos Initial program 51.5%
associate-*l*51.5%
+-commutative51.5%
associate-+r-51.1%
fma-def51.1%
+-commutative51.1%
associate-+r-50.7%
fma-def50.7%
Simplified50.7%
Taylor expanded in ux around 0 81.1%
Final simplification95.6%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* 2.0 (* uy PI))) (sqrt (* ux (- 2.0 ux)))))
float code(float ux, float uy, float maxCos) {
return sinf((2.0f * (uy * ((float) M_PI)))) * sqrtf((ux * (2.0f - ux)));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(Float32(2.0) * Float32(uy * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))) end
function tmp = code(ux, uy, maxCos) tmp = sin((single(2.0) * (uy * single(pi)))) * sqrt((ux * (single(2.0) - ux))); end
\begin{array}{l}
\\
\sin \left(2 \cdot \left(uy \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
cancel-sign-sub-inv98.3%
metadata-eval98.3%
mul-1-neg98.3%
unsub-neg98.3%
+-commutative98.3%
*-commutative98.3%
fma-def98.3%
unpow298.3%
associate-*l*98.3%
sub-neg98.3%
metadata-eval98.3%
Simplified98.3%
associate-*r*98.3%
add-cbrt-cube98.3%
add-cbrt-cube98.3%
cbrt-unprod98.4%
pow398.4%
pow398.4%
Applied egg-rr98.4%
Taylor expanded in maxCos around 0 91.7%
unpow291.7%
distribute-rgt-out--91.7%
Simplified91.7%
Final simplification91.7%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (sqrt (- (* 2.0 ux) (* ux ux))) (* uy PI))))
float code(float ux, float uy, float maxCos) {
return 2.0f * (sqrtf(((2.0f * ux) - (ux * ux))) * (uy * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(sqrt(Float32(Float32(Float32(2.0) * ux) - Float32(ux * ux))) * Float32(uy * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * (sqrt(((single(2.0) * ux) - (ux * ux))) * (uy * single(pi))); end
\begin{array}{l}
\\
2 \cdot \left(\sqrt{2 \cdot ux - ux \cdot ux} \cdot \left(uy \cdot \pi\right)\right)
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around -inf 58.1%
+-commutative58.1%
mul-1-neg58.1%
unsub-neg58.1%
unpow258.1%
mul-1-neg58.1%
unsub-neg58.1%
+-commutative58.1%
*-commutative58.1%
fma-def58.1%
Simplified58.1%
Taylor expanded in maxCos around -inf 98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
*-commutative98.2%
unpow298.2%
unpow298.2%
unswap-sqr98.2%
distribute-lft-out--98.2%
unpow298.2%
Simplified98.2%
Taylor expanded in uy around 0 80.7%
Simplified80.7%
Taylor expanded in maxCos around 0 76.4%
unpow276.4%
Simplified76.4%
Final simplification76.4%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt (* ux (- 2.0 ux))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * (2.0f - ux))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(2.0) - ux))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * (single(2.0) - ux)))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}\right)
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around -inf 58.1%
+-commutative58.1%
mul-1-neg58.1%
unsub-neg58.1%
unpow258.1%
mul-1-neg58.1%
unsub-neg58.1%
+-commutative58.1%
*-commutative58.1%
fma-def58.1%
Simplified58.1%
Taylor expanded in maxCos around -inf 98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
+-commutative98.2%
mul-1-neg98.2%
unsub-neg98.2%
*-commutative98.2%
unpow298.2%
unpow298.2%
unswap-sqr98.2%
distribute-lft-out--98.2%
unpow298.2%
Simplified98.2%
Taylor expanded in uy around 0 80.7%
Simplified80.7%
Taylor expanded in maxCos around 0 76.4%
unpow276.4%
distribute-rgt-out--76.4%
Simplified76.4%
Final simplification76.4%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* uy (* PI (sqrt (* 2.0 ux))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * (uy * (((float) M_PI) * sqrtf((2.0f * ux))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(uy * Float32(Float32(pi) * sqrt(Float32(Float32(2.0) * ux))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * (uy * (single(pi) * sqrt((single(2.0) * ux)))); end
\begin{array}{l}
\\
2 \cdot \left(uy \cdot \left(\pi \cdot \sqrt{2 \cdot ux}\right)\right)
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in uy around 0 47.0%
associate-*l*47.0%
+-commutative47.0%
*-commutative47.0%
fma-udef47.0%
Simplified47.0%
Taylor expanded in ux around 0 66.7%
Taylor expanded in maxCos around 0 63.9%
Final simplification63.9%
(FPCore (ux uy maxCos) :precision binary32 0.0)
float code(float ux, float uy, float maxCos) {
return 0.0f;
}
real(4) function code(ux, uy, maxcos)
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = 0.0e0
end function
function code(ux, uy, maxCos) return Float32(0.0) end
function tmp = code(ux, uy, maxCos) tmp = single(0.0); end
\begin{array}{l}
\\
0
\end{array}
Initial program 54.3%
associate-*l*54.3%
+-commutative54.3%
associate-+r-54.3%
fma-def54.3%
+-commutative54.3%
associate-+r-54.2%
fma-def54.2%
Simplified54.2%
Taylor expanded in ux around 0 98.3%
+-commutative98.3%
cancel-sign-sub-inv98.3%
metadata-eval98.3%
mul-1-neg98.3%
unsub-neg98.3%
+-commutative98.3%
*-commutative98.3%
fma-def98.3%
unpow298.3%
associate-*l*98.3%
sub-neg98.3%
metadata-eval98.3%
Simplified98.3%
add-cube-cbrt97.2%
pow397.2%
Applied egg-rr97.2%
Taylor expanded in uy around 0 7.1%
Final simplification7.1%
herbie shell --seed 2023287
(FPCore (ux uy maxCos)
:name "UniformSampleCone, y"
:precision binary32
:pre (and (and (and (<= 2.328306437e-10 ux) (<= ux 1.0)) (and (<= 2.328306437e-10 uy) (<= uy 1.0))) (and (<= 0.0 maxCos) (<= maxCos 1.0)))
(* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* (+ (- 1.0 ux) (* ux maxCos)) (+ (- 1.0 ux) (* ux maxCos)))))))