
(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 13 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 (* uy (* 2.0 PI)))
(sqrt
(+
(* (* (- 1.0 maxCos) (pow ux 2.0)) (+ maxCos -1.0))
(* ux (+ (* maxCos -2.0) (pow (sqrt 2.0) 2.0)))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf(((((1.0f - maxCos) * powf(ux, 2.0f)) * (maxCos + -1.0f)) + (ux * ((maxCos * -2.0f) + powf(sqrtf(2.0f), 2.0f)))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(Float32(Float32(Float32(1.0) - maxCos) * (ux ^ Float32(2.0))) * Float32(maxCos + Float32(-1.0))) + Float32(ux * Float32(Float32(maxCos * Float32(-2.0)) + (sqrt(Float32(2.0)) ^ Float32(2.0))))))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt(((((single(1.0) - maxCos) * (ux ^ single(2.0))) * (maxCos + single(-1.0))) + (ux * ((maxCos * single(-2.0)) + (sqrt(single(2.0)) ^ single(2.0)))))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{\left(\left(1 - maxCos\right) \cdot {ux}^{2}\right) \cdot \left(maxCos + -1\right) + ux \cdot \left(maxCos \cdot -2 + {\left(\sqrt{2}\right)}^{2}\right)}
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
add-sqr-sqrt98.4%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
Applied egg-rr98.5%
pow298.5%
+-commutative98.5%
sub-neg98.5%
Applied egg-rr98.5%
Taylor expanded in maxCos around 0 98.5%
Final simplification98.5%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(+
(* (+ maxCos -1.0) (* (- 1.0 maxCos) (* ux ux)))
(* ux (pow (sqrt (+ 1.0 (- (- 1.0 maxCos) maxCos))) 2.0))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((((maxCos + -1.0f) * ((1.0f - maxCos) * (ux * ux))) + (ux * powf(sqrtf((1.0f + ((1.0f - maxCos) - maxCos))), 2.0f))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(Float32(maxCos + Float32(-1.0)) * Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux))) + Float32(ux * (sqrt(Float32(Float32(1.0) + Float32(Float32(Float32(1.0) - maxCos) - maxCos))) ^ Float32(2.0)))))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((((maxCos + single(-1.0)) * ((single(1.0) - maxCos) * (ux * ux))) + (ux * (sqrt((single(1.0) + ((single(1.0) - maxCos) - maxCos))) ^ single(2.0))))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{\left(maxCos + -1\right) \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot ux\right)\right) + ux \cdot {\left(\sqrt{1 + \left(\left(1 - maxCos\right) - maxCos\right)}\right)}^{2}}
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
add-sqr-sqrt98.4%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
Applied egg-rr98.5%
pow298.5%
+-commutative98.5%
sub-neg98.5%
Applied egg-rr98.5%
pow183.2%
sub-neg83.2%
metadata-eval83.2%
unpow283.2%
Applied egg-rr98.5%
unpow183.2%
Simplified98.5%
Final simplification98.5%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(+
(* (* (- 1.0 maxCos) (pow ux 2.0)) (+ maxCos -1.0))
(*
ux
(/
(- (* (- 2.0 maxCos) (- 2.0 maxCos)) (* maxCos maxCos))
(+ maxCos (- 2.0 maxCos))))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf(((((1.0f - maxCos) * powf(ux, 2.0f)) * (maxCos + -1.0f)) + (ux * ((((2.0f - maxCos) * (2.0f - maxCos)) - (maxCos * maxCos)) / (maxCos + (2.0f - maxCos))))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(Float32(Float32(Float32(1.0) - maxCos) * (ux ^ Float32(2.0))) * Float32(maxCos + Float32(-1.0))) + Float32(ux * Float32(Float32(Float32(Float32(Float32(2.0) - maxCos) * Float32(Float32(2.0) - maxCos)) - Float32(maxCos * maxCos)) / Float32(maxCos + Float32(Float32(2.0) - maxCos))))))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt(((((single(1.0) - maxCos) * (ux ^ single(2.0))) * (maxCos + single(-1.0))) + (ux * ((((single(2.0) - maxCos) * (single(2.0) - maxCos)) - (maxCos * maxCos)) / (maxCos + (single(2.0) - maxCos)))))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{\left(\left(1 - maxCos\right) \cdot {ux}^{2}\right) \cdot \left(maxCos + -1\right) + ux \cdot \frac{\left(2 - maxCos\right) \cdot \left(2 - maxCos\right) - maxCos \cdot maxCos}{maxCos + \left(2 - maxCos\right)}}
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
flip--98.3%
neg-mul-198.3%
sub-neg98.3%
metadata-eval98.3%
distribute-neg-in98.3%
metadata-eval98.3%
neg-mul-198.3%
sub-neg98.3%
metadata-eval98.3%
distribute-neg-in98.3%
metadata-eval98.3%
Applied egg-rr98.3%
+-commutative98.3%
associate-+r+98.3%
metadata-eval98.3%
+-commutative98.3%
associate-+r+98.3%
metadata-eval98.3%
+-commutative98.3%
+-commutative98.3%
associate-+r+98.3%
metadata-eval98.3%
Simplified98.3%
Final simplification98.3%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sqrt
(fma
(+ maxCos -1.0)
(* (- 1.0 maxCos) (* ux ux))
(* ux (- (- 2.0 maxCos) maxCos))))
(sin (* PI (* uy 2.0)))))
float code(float ux, float uy, float maxCos) {
return sqrtf(fmaf((maxCos + -1.0f), ((1.0f - maxCos) * (ux * ux)), (ux * ((2.0f - maxCos) - maxCos)))) * sinf((((float) M_PI) * (uy * 2.0f)));
}
function code(ux, uy, maxCos) return Float32(sqrt(fma(Float32(maxCos + Float32(-1.0)), Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux)), Float32(ux * Float32(Float32(Float32(2.0) - maxCos) - maxCos)))) * sin(Float32(Float32(pi) * Float32(uy * Float32(2.0))))) end
\begin{array}{l}
\\
\sqrt{\mathsf{fma}\left(maxCos + -1, \left(1 - maxCos\right) \cdot \left(ux \cdot ux\right), ux \cdot \left(\left(2 - maxCos\right) - maxCos\right)\right)} \cdot \sin \left(\pi \cdot \left(uy \cdot 2\right)\right)
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
Taylor expanded in uy around inf 98.3%
Simplified98.3%
Final simplification98.3%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* uy (* 2.0 PI))) (sqrt (fma maxCos (* -2.0 (- ux (* ux ux))) (* ux (- 2.0 ux))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf(fmaf(maxCos, (-2.0f * (ux - (ux * ux))), (ux * (2.0f - ux))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(fma(maxCos, Float32(Float32(-2.0) * Float32(ux - Float32(ux * ux))), Float32(ux * Float32(Float32(2.0) - ux))))) end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{\mathsf{fma}\left(maxCos, -2 \cdot \left(ux - ux \cdot ux\right), ux \cdot \left(2 - ux\right)\right)}
\end{array}
Initial program 55.6%
associate-*l*55.6%
+-commutative55.6%
associate-+r-55.6%
fma-def55.6%
+-commutative55.6%
associate-+r-55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around -inf 59.4%
+-commutative59.4%
mul-1-neg59.4%
unsub-neg59.4%
unpow259.4%
mul-1-neg59.4%
sub-neg59.4%
*-commutative59.4%
fma-def59.4%
Simplified59.4%
Taylor expanded in maxCos around 0 97.1%
associate--l+97.1%
*-commutative97.1%
fma-def97.1%
distribute-lft-out--97.1%
unpow297.1%
unpow297.1%
distribute-rgt-out--97.1%
Simplified97.1%
Final simplification97.1%
(FPCore (ux uy maxCos)
:precision binary32
(let* ((t_0 (* PI (* uy 2.0))))
(if (<= (* uy 2.0) 0.0002099999983329326)
(*
(sqrt
(fma
(+ maxCos -1.0)
(* (- 1.0 maxCos) (* ux ux))
(* ux (- (- 2.0 maxCos) maxCos))))
t_0)
(* (sin t_0) (sqrt (* ux (- 2.0 ux)))))))
float code(float ux, float uy, float maxCos) {
float t_0 = ((float) M_PI) * (uy * 2.0f);
float tmp;
if ((uy * 2.0f) <= 0.0002099999983329326f) {
tmp = sqrtf(fmaf((maxCos + -1.0f), ((1.0f - maxCos) * (ux * ux)), (ux * ((2.0f - maxCos) - maxCos)))) * t_0;
} else {
tmp = sinf(t_0) * sqrtf((ux * (2.0f - ux)));
}
return tmp;
}
function code(ux, uy, maxCos) t_0 = Float32(Float32(pi) * Float32(uy * Float32(2.0))) tmp = Float32(0.0) if (Float32(uy * Float32(2.0)) <= Float32(0.0002099999983329326)) tmp = Float32(sqrt(fma(Float32(maxCos + Float32(-1.0)), Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux)), Float32(ux * Float32(Float32(Float32(2.0) - maxCos) - maxCos)))) * t_0); else tmp = Float32(sin(t_0) * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \pi \cdot \left(uy \cdot 2\right)\\
\mathbf{if}\;uy \cdot 2 \leq 0.0002099999983329326:\\
\;\;\;\;\sqrt{\mathsf{fma}\left(maxCos + -1, \left(1 - maxCos\right) \cdot \left(ux \cdot ux\right), ux \cdot \left(\left(2 - maxCos\right) - maxCos\right)\right)} \cdot t_0\\
\mathbf{else}:\\
\;\;\;\;\sin t_0 \cdot \sqrt{ux \cdot \left(2 - ux\right)}\\
\end{array}
\end{array}
if (*.f32 uy 2) < 2.09999998e-4Initial program 58.7%
associate-*l*58.7%
sub-neg58.7%
+-commutative58.7%
distribute-rgt-neg-in58.7%
fma-def58.5%
+-commutative58.5%
associate-+r-58.5%
fma-def58.5%
neg-sub058.5%
+-commutative58.5%
associate-+r-58.2%
associate--r-58.2%
neg-sub058.2%
+-commutative58.2%
sub-neg58.2%
fma-def58.2%
Simplified58.2%
Taylor expanded in ux around 0 98.5%
Taylor expanded in uy around 0 98.5%
Simplified98.5%
if 2.09999998e-4 < (*.f32 uy 2) Initial program 50.5%
associate-*l*50.5%
sub-neg50.5%
+-commutative50.5%
distribute-rgt-neg-in50.5%
fma-def50.9%
+-commutative50.9%
associate-+r-50.8%
fma-def50.8%
neg-sub050.8%
+-commutative50.8%
associate-+r-50.8%
associate--r-50.8%
neg-sub050.8%
+-commutative50.8%
sub-neg50.8%
fma-def50.8%
Simplified50.8%
Taylor expanded in ux around 0 98.0%
add-sqr-sqrt98.1%
associate--l+98.1%
neg-mul-198.1%
sub-neg98.1%
metadata-eval98.1%
distribute-neg-in98.1%
metadata-eval98.1%
associate--l+98.1%
neg-mul-198.1%
sub-neg98.1%
metadata-eval98.1%
distribute-neg-in98.1%
metadata-eval98.1%
Applied egg-rr98.1%
Taylor expanded in maxCos around 0 89.7%
associate-*r*89.7%
*-commutative89.7%
*-commutative89.7%
*-commutative89.7%
mul-1-neg89.7%
+-commutative89.7%
sub-neg89.7%
unpow289.7%
distribute-rgt-out--89.7%
Simplified89.7%
Final simplification95.2%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* uy 2.0) 0.0002099999983329326)
(*
2.0
(*
(* uy PI)
(sqrt
(+
(* (+ maxCos -1.0) (* (- 1.0 maxCos) (* ux ux)))
(* ux (- 2.0 (* 2.0 maxCos)))))))
(* (sin (* PI (* uy 2.0))) (sqrt (* ux (- 2.0 ux))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((uy * 2.0f) <= 0.0002099999983329326f) {
tmp = 2.0f * ((uy * ((float) M_PI)) * sqrtf((((maxCos + -1.0f) * ((1.0f - maxCos) * (ux * ux))) + (ux * (2.0f - (2.0f * maxCos))))));
} else {
tmp = sinf((((float) M_PI) * (uy * 2.0f))) * sqrtf((ux * (2.0f - ux)));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (Float32(uy * Float32(2.0)) <= Float32(0.0002099999983329326)) tmp = Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(Float32(Float32(maxCos + Float32(-1.0)) * Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux))) + Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos))))))); else tmp = Float32(sin(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if ((uy * single(2.0)) <= single(0.0002099999983329326)) tmp = single(2.0) * ((uy * single(pi)) * sqrt((((maxCos + single(-1.0)) * ((single(1.0) - maxCos) * (ux * ux))) + (ux * (single(2.0) - (single(2.0) * maxCos)))))); else tmp = sin((single(pi) * (uy * single(2.0)))) * sqrt((ux * (single(2.0) - ux))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;uy \cdot 2 \leq 0.0002099999983329326:\\
\;\;\;\;2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{\left(maxCos + -1\right) \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot ux\right)\right) + ux \cdot \left(2 - 2 \cdot maxCos\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}\\
\end{array}
\end{array}
if (*.f32 uy 2) < 2.09999998e-4Initial program 58.7%
associate-*l*58.7%
sub-neg58.7%
+-commutative58.7%
distribute-rgt-neg-in58.7%
fma-def58.5%
+-commutative58.5%
associate-+r-58.5%
fma-def58.5%
neg-sub058.5%
+-commutative58.5%
associate-+r-58.2%
associate--r-58.2%
neg-sub058.2%
+-commutative58.2%
sub-neg58.2%
fma-def58.2%
Simplified58.2%
Taylor expanded in ux around 0 98.5%
add-sqr-sqrt98.7%
associate--l+98.8%
neg-mul-198.8%
sub-neg98.8%
metadata-eval98.8%
distribute-neg-in98.8%
metadata-eval98.8%
associate--l+98.7%
neg-mul-198.7%
sub-neg98.7%
metadata-eval98.7%
distribute-neg-in98.7%
metadata-eval98.7%
Applied egg-rr98.7%
Taylor expanded in uy around 0 98.4%
pow198.4%
sub-neg98.4%
metadata-eval98.4%
unpow298.4%
Applied egg-rr98.4%
unpow198.4%
Simplified98.4%
if 2.09999998e-4 < (*.f32 uy 2) Initial program 50.5%
associate-*l*50.5%
sub-neg50.5%
+-commutative50.5%
distribute-rgt-neg-in50.5%
fma-def50.9%
+-commutative50.9%
associate-+r-50.8%
fma-def50.8%
neg-sub050.8%
+-commutative50.8%
associate-+r-50.8%
associate--r-50.8%
neg-sub050.8%
+-commutative50.8%
sub-neg50.8%
fma-def50.8%
Simplified50.8%
Taylor expanded in ux around 0 98.0%
add-sqr-sqrt98.1%
associate--l+98.1%
neg-mul-198.1%
sub-neg98.1%
metadata-eval98.1%
distribute-neg-in98.1%
metadata-eval98.1%
associate--l+98.1%
neg-mul-198.1%
sub-neg98.1%
metadata-eval98.1%
distribute-neg-in98.1%
metadata-eval98.1%
Applied egg-rr98.1%
Taylor expanded in maxCos around 0 89.7%
associate-*r*89.7%
*-commutative89.7%
*-commutative89.7%
*-commutative89.7%
mul-1-neg89.7%
+-commutative89.7%
sub-neg89.7%
unpow289.7%
distribute-rgt-out--89.7%
Simplified89.7%
Final simplification95.2%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= uy 0.0005000000237487257)
(*
2.0
(*
(* uy PI)
(sqrt
(+
(* (+ maxCos -1.0) (* (- 1.0 maxCos) (* ux ux)))
(* ux (- 2.0 (* 2.0 maxCos)))))))
(* (sin (* uy (* 2.0 PI))) (sqrt (* 2.0 ux)))))
float code(float ux, float uy, float maxCos) {
float tmp;
if (uy <= 0.0005000000237487257f) {
tmp = 2.0f * ((uy * ((float) M_PI)) * sqrtf((((maxCos + -1.0f) * ((1.0f - maxCos) * (ux * ux))) + (ux * (2.0f - (2.0f * maxCos))))));
} else {
tmp = sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((2.0f * ux));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (uy <= Float32(0.0005000000237487257)) tmp = Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(Float32(Float32(maxCos + Float32(-1.0)) * Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux))) + Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos))))))); else tmp = Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(Float32(2.0) * ux))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if (uy <= single(0.0005000000237487257)) tmp = single(2.0) * ((uy * single(pi)) * sqrt((((maxCos + single(-1.0)) * ((single(1.0) - maxCos) * (ux * ux))) + (ux * (single(2.0) - (single(2.0) * maxCos)))))); else tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((single(2.0) * ux)); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;uy \leq 0.0005000000237487257:\\
\;\;\;\;2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{\left(maxCos + -1\right) \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot ux\right)\right) + ux \cdot \left(2 - 2 \cdot maxCos\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{2 \cdot ux}\\
\end{array}
\end{array}
if uy < 5.00000024e-4Initial program 57.8%
associate-*l*57.8%
sub-neg57.8%
+-commutative57.8%
distribute-rgt-neg-in57.8%
fma-def57.7%
+-commutative57.7%
associate-+r-57.7%
fma-def57.7%
neg-sub057.7%
+-commutative57.7%
associate-+r-57.4%
associate--r-57.4%
neg-sub057.4%
+-commutative57.4%
sub-neg57.4%
fma-def57.4%
Simplified57.4%
Taylor expanded in ux around 0 98.5%
add-sqr-sqrt98.7%
associate--l+98.7%
neg-mul-198.7%
sub-neg98.7%
metadata-eval98.7%
distribute-neg-in98.7%
metadata-eval98.7%
associate--l+98.7%
neg-mul-198.7%
sub-neg98.7%
metadata-eval98.7%
distribute-neg-in98.7%
metadata-eval98.7%
Applied egg-rr98.7%
Taylor expanded in uy around 0 97.7%
pow197.7%
sub-neg97.7%
metadata-eval97.7%
unpow297.7%
Applied egg-rr97.7%
unpow197.7%
Simplified97.7%
if 5.00000024e-4 < uy Initial program 50.7%
associate-*l*50.7%
+-commutative50.7%
associate-+r-50.7%
fma-def50.7%
+-commutative50.7%
associate-+r-50.6%
fma-def50.6%
Simplified50.6%
Taylor expanded in ux around 0 42.9%
Taylor expanded in maxCos around 0 73.2%
Final simplification90.1%
(FPCore (ux uy maxCos)
:precision binary32
(*
2.0
(*
(* uy PI)
(sqrt
(+
(* (+ maxCos -1.0) (* (- 1.0 maxCos) (* ux ux)))
(* ux (- 2.0 (* 2.0 maxCos))))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf((((maxCos + -1.0f) * ((1.0f - maxCos) * (ux * ux))) + (ux * (2.0f - (2.0f * maxCos))))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(Float32(Float32(maxCos + Float32(-1.0)) * Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * ux))) + Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos))))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt((((maxCos + single(-1.0)) * ((single(1.0) - maxCos) * (ux * ux))) + (ux * (single(2.0) - (single(2.0) * maxCos)))))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{\left(maxCos + -1\right) \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot ux\right)\right) + ux \cdot \left(2 - 2 \cdot maxCos\right)}\right)
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
add-sqr-sqrt98.4%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
Applied egg-rr98.5%
Taylor expanded in uy around 0 83.2%
pow183.2%
sub-neg83.2%
metadata-eval83.2%
unpow283.2%
Applied egg-rr83.2%
unpow183.2%
Simplified83.2%
Final simplification83.2%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt (- (* ux (- 2.0 (* 2.0 maxCos))) (* ux ux))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf(((ux * (2.0f - (2.0f * maxCos))) - (ux * ux))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos))) - Float32(ux * ux))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt(((ux * (single(2.0) - (single(2.0) * maxCos))) - (ux * ux)))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - 2 \cdot maxCos\right) - ux \cdot ux}\right)
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
add-sqr-sqrt98.4%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
Applied egg-rr98.5%
Taylor expanded in uy around 0 83.2%
Taylor expanded in maxCos around 0 81.6%
mul-1-neg81.6%
unpow281.6%
Simplified81.6%
Final simplification81.6%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt (* ux (- 2.0 (* 2.0 maxCos)))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * (2.0f - (2.0f * maxCos)))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos)))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * (single(2.0) - (single(2.0) * maxCos))))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - 2 \cdot maxCos\right)}\right)
\end{array}
Initial program 55.6%
add-log-exp55.6%
pow255.6%
+-commutative55.6%
fma-def55.6%
Applied egg-rr55.6%
Taylor expanded in uy around 0 49.8%
associate-+r-50.1%
Simplified50.1%
Taylor expanded in ux around 0 67.9%
Final simplification67.9%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt (- (* 2.0 ux) (* ux ux))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf(((2.0f * ux) - (ux * ux))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(Float32(Float32(2.0) * ux) - Float32(ux * ux))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt(((single(2.0) * ux) - (ux * ux)))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{2 \cdot ux - ux \cdot ux}\right)
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in ux around 0 98.3%
add-sqr-sqrt98.4%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
associate--l+98.5%
neg-mul-198.5%
sub-neg98.5%
metadata-eval98.5%
distribute-neg-in98.5%
metadata-eval98.5%
Applied egg-rr98.5%
Taylor expanded in uy around 0 83.2%
Taylor expanded in maxCos around 0 77.1%
+-commutative77.1%
mul-1-neg77.1%
sub-neg77.1%
unpow277.1%
Simplified77.1%
Final simplification77.1%
(FPCore (ux uy maxCos) :precision binary32 (* 2.0 (* (* uy PI) (sqrt 0.0))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf(0.0f));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(0.0)))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt(single(0.0))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{0}\right)
\end{array}
Initial program 55.6%
associate-*l*55.6%
sub-neg55.6%
+-commutative55.6%
distribute-rgt-neg-in55.6%
fma-def55.7%
+-commutative55.7%
associate-+r-55.6%
fma-def55.6%
neg-sub055.6%
+-commutative55.6%
associate-+r-55.4%
associate--r-55.4%
neg-sub055.4%
+-commutative55.4%
sub-neg55.4%
fma-def55.4%
Simplified55.4%
Taylor expanded in uy around 0 49.8%
Taylor expanded in ux around 0 7.2%
Final simplification7.2%
herbie shell --seed 2023230
(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)))))))