
(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
(cbrt
(*
(pow
(*
(pow ux 2.0)
(+
(/ (- 1.0 maxCos) ux)
(- (- (/ 1.0 ux) (pow (+ maxCos -1.0) 2.0)) (/ maxCos ux))))
1.5)
(pow (sin (* 2.0 (* uy PI))) 3.0))))
float code(float ux, float uy, float maxCos) {
return cbrtf((powf((powf(ux, 2.0f) * (((1.0f - maxCos) / ux) + (((1.0f / ux) - powf((maxCos + -1.0f), 2.0f)) - (maxCos / ux)))), 1.5f) * powf(sinf((2.0f * (uy * ((float) M_PI)))), 3.0f)));
}
function code(ux, uy, maxCos) return cbrt(Float32((Float32((ux ^ Float32(2.0)) * Float32(Float32(Float32(Float32(1.0) - maxCos) / ux) + Float32(Float32(Float32(Float32(1.0) / ux) - (Float32(maxCos + Float32(-1.0)) ^ Float32(2.0))) - Float32(maxCos / ux)))) ^ Float32(1.5)) * (sin(Float32(Float32(2.0) * Float32(uy * Float32(pi)))) ^ Float32(3.0)))) end
\begin{array}{l}
\\
\sqrt[3]{{\left({ux}^{2} \cdot \left(\frac{1 - maxCos}{ux} + \left(\left(\frac{1}{ux} - {\left(maxCos + -1\right)}^{2}\right) - \frac{maxCos}{ux}\right)\right)\right)}^{1.5} \cdot {\sin \left(2 \cdot \left(uy \cdot \pi\right)\right)}^{3}}
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
*-commutative98.0%
add-cbrt-cube98.0%
associate-*r*98.0%
*-commutative98.0%
associate-*r*98.0%
add-cbrt-cube98.0%
Applied egg-rr98.1%
Simplified98.1%
Final simplification98.1%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(*
ux
(*
ux
(+
(* (- 1.0 maxCos) (+ maxCos -1.0))
(/ (+ 1.0 (- (- 1.0 maxCos) maxCos)) ux)))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((ux * (ux * (((1.0f - maxCos) * (maxCos + -1.0f)) + ((1.0f + ((1.0f - maxCos) - maxCos)) / ux)))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(ux * Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(maxCos + Float32(-1.0))) + Float32(Float32(Float32(1.0) + Float32(Float32(Float32(1.0) - maxCos) - maxCos)) / ux)))))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((ux * (ux * (((single(1.0) - maxCos) * (maxCos + single(-1.0))) + ((single(1.0) + ((single(1.0) - maxCos) - maxCos)) / ux))))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(ux \cdot \left(\left(1 - maxCos\right) \cdot \left(maxCos + -1\right) + \frac{1 + \left(\left(1 - maxCos\right) - maxCos\right)}{ux}\right)\right)}
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in ux around 0 98.0%
Taylor expanded in ux around -inf 98.1%
associate-*r*98.1%
mul-1-neg98.1%
distribute-lft-out98.1%
*-commutative98.1%
sub-neg98.1%
metadata-eval98.1%
+-commutative98.1%
associate--l+98.1%
sub-neg98.1%
metadata-eval98.1%
+-commutative98.1%
neg-mul-198.1%
distribute-neg-in98.1%
metadata-eval98.1%
sub-neg98.1%
Simplified98.1%
Final simplification98.1%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sin (* uy (* 2.0 PI)))
(sqrt
(*
ux
(-
(+ 1.0 (+ (- 1.0 maxCos) (* ux (* (- 1.0 maxCos) (+ maxCos -1.0)))))
maxCos)))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((ux * ((1.0f + ((1.0f - maxCos) + (ux * ((1.0f - maxCos) * (maxCos + -1.0f))))) - maxCos)));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(Float32(1.0) + Float32(Float32(Float32(1.0) - maxCos) + Float32(ux * Float32(Float32(Float32(1.0) - maxCos) * Float32(maxCos + Float32(-1.0)))))) - maxCos)))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((ux * ((single(1.0) + ((single(1.0) - maxCos) + (ux * ((single(1.0) - maxCos) * (maxCos + single(-1.0)))))) - maxCos))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(\left(1 + \left(\left(1 - maxCos\right) + ux \cdot \left(\left(1 - maxCos\right) \cdot \left(maxCos + -1\right)\right)\right)\right) - maxCos\right)}
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in ux around 0 98.0%
Final simplification98.0%
(FPCore (ux uy maxCos) :precision binary32 (* (sqrt (+ (/ 2.0 ux) (+ -1.0 (* maxCos (- 2.0 (+ maxCos (/ 2.0 ux))))))) (* ux (sin (* 2.0 (* uy PI))))))
float code(float ux, float uy, float maxCos) {
return sqrtf(((2.0f / ux) + (-1.0f + (maxCos * (2.0f - (maxCos + (2.0f / ux))))))) * (ux * sinf((2.0f * (uy * ((float) M_PI)))));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(Float32(Float32(2.0) / ux) + Float32(Float32(-1.0) + Float32(maxCos * Float32(Float32(2.0) - Float32(maxCos + Float32(Float32(2.0) / ux))))))) * Float32(ux * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi)))))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt(((single(2.0) / ux) + (single(-1.0) + (maxCos * (single(2.0) - (maxCos + (single(2.0) / ux))))))) * (ux * sin((single(2.0) * (uy * single(pi))))); end
\begin{array}{l}
\\
\sqrt{\frac{2}{ux} + \left(-1 + maxCos \cdot \left(2 - \left(maxCos + \frac{2}{ux}\right)\right)\right)} \cdot \left(ux \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\right)
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in uy around inf 97.9%
*-commutative97.9%
Simplified97.9%
Taylor expanded in maxCos around 0 97.9%
associate--l+97.9%
associate-*r/97.9%
metadata-eval97.9%
mul-1-neg97.9%
associate--l+97.9%
associate-*r/97.9%
metadata-eval97.9%
Simplified97.9%
Final simplification97.9%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* uy (* 2.0 PI))) (sqrt (* ux (+ 2.0 (- (* maxCos (- (* ux 2.0) 2.0)) ux))))))
float code(float ux, float uy, float maxCos) {
return sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((ux * (2.0f + ((maxCos * ((ux * 2.0f) - 2.0f)) - ux))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(2.0) + Float32(Float32(maxCos * Float32(Float32(ux * Float32(2.0)) - Float32(2.0))) - ux))))) end
function tmp = code(ux, uy, maxCos) tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((ux * (single(2.0) + ((maxCos * ((ux * single(2.0)) - single(2.0))) - ux)))); end
\begin{array}{l}
\\
\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 + \left(maxCos \cdot \left(ux \cdot 2 - 2\right) - ux\right)\right)}
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in ux around 0 98.0%
Taylor expanded in maxCos around 0 97.5%
Final simplification97.5%
(FPCore (ux uy maxCos) :precision binary32 (* (* ux (sin (* 2.0 (* uy PI)))) (sqrt (+ (/ (- 1.0 maxCos) ux) (+ -1.0 (/ 1.0 ux))))))
float code(float ux, float uy, float maxCos) {
return (ux * sinf((2.0f * (uy * ((float) M_PI))))) * sqrtf((((1.0f - maxCos) / ux) + (-1.0f + (1.0f / ux))));
}
function code(ux, uy, maxCos) return Float32(Float32(ux * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi))))) * sqrt(Float32(Float32(Float32(Float32(1.0) - maxCos) / ux) + Float32(Float32(-1.0) + Float32(Float32(1.0) / ux))))) end
function tmp = code(ux, uy, maxCos) tmp = (ux * sin((single(2.0) * (uy * single(pi))))) * sqrt((((single(1.0) - maxCos) / ux) + (single(-1.0) + (single(1.0) / ux)))); end
\begin{array}{l}
\\
\left(ux \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\right) \cdot \sqrt{\frac{1 - maxCos}{ux} + \left(-1 + \frac{1}{ux}\right)}
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in uy around inf 97.9%
*-commutative97.9%
Simplified97.9%
Taylor expanded in maxCos around 0 92.7%
Final simplification92.7%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* 2.0 uy) 0.0003000000142492354)
(*
2.0
(*
(* uy PI)
(sqrt
(*
ux
(-
(+ 1.0 (+ (- 1.0 maxCos) (* ux (* (- 1.0 maxCos) (+ maxCos -1.0)))))
maxCos)))))
(* (sin (* uy (* 2.0 PI))) (sqrt (* ux (- 2.0 ux))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((2.0f * uy) <= 0.0003000000142492354f) {
tmp = 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * ((1.0f + ((1.0f - maxCos) + (ux * ((1.0f - maxCos) * (maxCos + -1.0f))))) - maxCos))));
} else {
tmp = sinf((uy * (2.0f * ((float) M_PI)))) * sqrtf((ux * (2.0f - ux)));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (Float32(Float32(2.0) * uy) <= Float32(0.0003000000142492354)) tmp = Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(Float32(1.0) + Float32(Float32(Float32(1.0) - maxCos) + Float32(ux * Float32(Float32(Float32(1.0) - maxCos) * Float32(maxCos + Float32(-1.0)))))) - maxCos))))); else tmp = Float32(sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))) * sqrt(Float32(ux * Float32(Float32(2.0) - ux)))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if ((single(2.0) * uy) <= single(0.0003000000142492354)) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * ((single(1.0) + ((single(1.0) - maxCos) + (ux * ((single(1.0) - maxCos) * (maxCos + single(-1.0)))))) - maxCos)))); else tmp = sin((uy * (single(2.0) * single(pi)))) * sqrt((ux * (single(2.0) - ux))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;2 \cdot uy \leq 0.0003000000142492354:\\
\;\;\;\;2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(\left(1 + \left(\left(1 - maxCos\right) + ux \cdot \left(\left(1 - maxCos\right) \cdot \left(maxCos + -1\right)\right)\right)\right) - maxCos\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}\\
\end{array}
\end{array}
if (*.f32 uy #s(literal 2 binary32)) < 3.00000014e-4Initial program 61.7%
associate-*l*61.7%
sub-neg61.7%
+-commutative61.7%
distribute-rgt-neg-in61.7%
fma-define61.6%
Simplified61.6%
Taylor expanded in ux around inf 98.4%
Taylor expanded in ux around 0 98.3%
Taylor expanded in uy around 0 98.2%
if 3.00000014e-4 < (*.f32 uy #s(literal 2 binary32)) Initial program 59.8%
associate-*l*59.8%
sub-neg59.8%
+-commutative59.8%
distribute-rgt-neg-in59.8%
fma-define59.9%
Simplified60.4%
Taylor expanded in ux around inf 97.4%
Taylor expanded in maxCos around 0 90.9%
sub-neg90.9%
associate-*r/90.9%
metadata-eval90.9%
metadata-eval90.9%
Simplified90.9%
Taylor expanded in ux around 0 90.9%
mul-1-neg90.9%
unsub-neg90.9%
Simplified90.9%
Final simplification95.5%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* 2.0 uy) 0.007000000216066837)
(*
2.0
(*
(* uy PI)
(sqrt
(*
ux
(-
(+ 1.0 (+ (- 1.0 maxCos) (* ux (* (- 1.0 maxCos) (+ maxCos -1.0)))))
maxCos)))))
(* (sin (* PI (* 2.0 uy))) (sqrt (* ux 2.0)))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((2.0f * uy) <= 0.007000000216066837f) {
tmp = 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * ((1.0f + ((1.0f - maxCos) + (ux * ((1.0f - maxCos) * (maxCos + -1.0f))))) - maxCos))));
} else {
tmp = sinf((((float) M_PI) * (2.0f * uy))) * sqrtf((ux * 2.0f));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (Float32(Float32(2.0) * uy) <= Float32(0.007000000216066837)) tmp = Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(Float32(1.0) + Float32(Float32(Float32(1.0) - maxCos) + Float32(ux * Float32(Float32(Float32(1.0) - maxCos) * Float32(maxCos + Float32(-1.0)))))) - maxCos))))); else tmp = Float32(sin(Float32(Float32(pi) * Float32(Float32(2.0) * uy))) * sqrt(Float32(ux * Float32(2.0)))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) tmp = single(0.0); if ((single(2.0) * uy) <= single(0.007000000216066837)) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * ((single(1.0) + ((single(1.0) - maxCos) + (ux * ((single(1.0) - maxCos) * (maxCos + single(-1.0)))))) - maxCos)))); else tmp = sin((single(pi) * (single(2.0) * uy))) * sqrt((ux * single(2.0))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;2 \cdot uy \leq 0.007000000216066837:\\
\;\;\;\;2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(\left(1 + \left(\left(1 - maxCos\right) + ux \cdot \left(\left(1 - maxCos\right) \cdot \left(maxCos + -1\right)\right)\right)\right) - maxCos\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(\pi \cdot \left(2 \cdot uy\right)\right) \cdot \sqrt{ux \cdot 2}\\
\end{array}
\end{array}
if (*.f32 uy #s(literal 2 binary32)) < 0.00700000022Initial program 61.1%
associate-*l*61.1%
sub-neg61.1%
+-commutative61.1%
distribute-rgt-neg-in61.1%
fma-define61.1%
Simplified61.4%
Taylor expanded in ux around inf 98.4%
Taylor expanded in ux around 0 98.3%
Taylor expanded in uy around 0 95.3%
if 0.00700000022 < (*.f32 uy #s(literal 2 binary32)) Initial program 60.5%
Taylor expanded in ux around 0 45.0%
Taylor expanded in maxCos around 0 70.2%
Final simplification88.9%
(FPCore (ux uy maxCos)
:precision binary32
(*
2.0
(*
(* uy PI)
(sqrt
(*
ux
(-
(+ 1.0 (+ (- 1.0 maxCos) (* ux (* (- 1.0 maxCos) (+ maxCos -1.0)))))
maxCos))))))
float code(float ux, float uy, float maxCos) {
return 2.0f * ((uy * ((float) M_PI)) * sqrtf((ux * ((1.0f + ((1.0f - maxCos) + (ux * ((1.0f - maxCos) * (maxCos + -1.0f))))) - maxCos))));
}
function code(ux, uy, maxCos) return Float32(Float32(2.0) * Float32(Float32(uy * Float32(pi)) * sqrt(Float32(ux * Float32(Float32(Float32(1.0) + Float32(Float32(Float32(1.0) - maxCos) + Float32(ux * Float32(Float32(Float32(1.0) - maxCos) * Float32(maxCos + Float32(-1.0)))))) - maxCos))))) end
function tmp = code(ux, uy, maxCos) tmp = single(2.0) * ((uy * single(pi)) * sqrt((ux * ((single(1.0) + ((single(1.0) - maxCos) + (ux * ((single(1.0) - maxCos) * (maxCos + single(-1.0)))))) - maxCos)))); end
\begin{array}{l}
\\
2 \cdot \left(\left(uy \cdot \pi\right) \cdot \sqrt{ux \cdot \left(\left(1 + \left(\left(1 - maxCos\right) + ux \cdot \left(\left(1 - maxCos\right) \cdot \left(maxCos + -1\right)\right)\right)\right) - maxCos\right)}\right)
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in ux around 0 98.0%
Taylor expanded in uy around 0 79.7%
Final simplification79.7%
(FPCore (ux uy maxCos) :precision binary32 (* (* (* uy PI) (* ux 2.0)) (sqrt (+ -1.0 (/ 2.0 ux)))))
float code(float ux, float uy, float maxCos) {
return ((uy * ((float) M_PI)) * (ux * 2.0f)) * sqrtf((-1.0f + (2.0f / ux)));
}
function code(ux, uy, maxCos) return Float32(Float32(Float32(uy * Float32(pi)) * Float32(ux * Float32(2.0))) * sqrt(Float32(Float32(-1.0) + Float32(Float32(2.0) / ux)))) end
function tmp = code(ux, uy, maxCos) tmp = ((uy * single(pi)) * (ux * single(2.0))) * sqrt((single(-1.0) + (single(2.0) / ux))); end
\begin{array}{l}
\\
\left(\left(uy \cdot \pi\right) \cdot \left(ux \cdot 2\right)\right) \cdot \sqrt{-1 + \frac{2}{ux}}
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in ux around inf 98.0%
Taylor expanded in maxCos around 0 92.3%
sub-neg92.3%
associate-*r/92.3%
metadata-eval92.3%
metadata-eval92.3%
Simplified92.3%
Taylor expanded in uy around 0 75.9%
associate-*r*75.9%
associate-*r*75.9%
sub-neg75.9%
metadata-eval75.9%
+-commutative75.9%
associate-*r/75.9%
metadata-eval75.9%
Simplified75.9%
Final simplification75.9%
(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(uy * Float32(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(uy \cdot \left(\pi \cdot \sqrt{ux \cdot \left(2 - 2 \cdot maxCos\right)}\right)\right)
\end{array}
Initial program 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in uy around 0 52.6%
Simplified52.6%
Taylor expanded in ux around 0 63.7%
Final simplification63.7%
(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 60.9%
associate-*l*60.9%
sub-neg60.9%
+-commutative60.9%
distribute-rgt-neg-in60.9%
fma-define60.9%
Simplified61.2%
Taylor expanded in uy around 0 52.6%
Simplified52.6%
Taylor expanded in ux around 0 7.1%
Taylor expanded in uy around 0 7.1%
herbie shell --seed 2024116
(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)))))))