
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* (* (- 1.0 ux) maxCos) ux))
(t_1 (sqrt (- 1.0 (* t_0 t_0))))
(t_2 (* (* uy 2.0) PI)))
(+ (+ (* (* (cos t_2) t_1) xi) (* (* (sin t_2) t_1) yi)) (* t_0 zi))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = ((1.0f - ux) * maxCos) * ux;
float t_1 = sqrtf((1.0f - (t_0 * t_0)));
float t_2 = (uy * 2.0f) * ((float) M_PI);
return (((cosf(t_2) * t_1) * xi) + ((sinf(t_2) * t_1) * yi)) + (t_0 * zi);
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(Float32(Float32(1.0) - ux) * maxCos) * ux) t_1 = sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0))) t_2 = Float32(Float32(uy * Float32(2.0)) * Float32(pi)) return Float32(Float32(Float32(Float32(cos(t_2) * t_1) * xi) + Float32(Float32(sin(t_2) * t_1) * yi)) + Float32(t_0 * zi)) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = ((single(1.0) - ux) * maxCos) * ux; t_1 = sqrt((single(1.0) - (t_0 * t_0))); t_2 = (uy * single(2.0)) * single(pi); tmp = (((cos(t_2) * t_1) * xi) + ((sin(t_2) * t_1) * yi)) + (t_0 * zi); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(\left(1 - ux\right) \cdot maxCos\right) \cdot ux\\
t_1 := \sqrt{1 - t\_0 \cdot t\_0}\\
t_2 := \left(uy \cdot 2\right) \cdot \pi\\
\left(\left(\cos t\_2 \cdot t\_1\right) \cdot xi + \left(\sin t\_2 \cdot t\_1\right) \cdot yi\right) + t\_0 \cdot zi
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 15 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* (* (- 1.0 ux) maxCos) ux))
(t_1 (sqrt (- 1.0 (* t_0 t_0))))
(t_2 (* (* uy 2.0) PI)))
(+ (+ (* (* (cos t_2) t_1) xi) (* (* (sin t_2) t_1) yi)) (* t_0 zi))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = ((1.0f - ux) * maxCos) * ux;
float t_1 = sqrtf((1.0f - (t_0 * t_0)));
float t_2 = (uy * 2.0f) * ((float) M_PI);
return (((cosf(t_2) * t_1) * xi) + ((sinf(t_2) * t_1) * yi)) + (t_0 * zi);
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(Float32(Float32(1.0) - ux) * maxCos) * ux) t_1 = sqrt(Float32(Float32(1.0) - Float32(t_0 * t_0))) t_2 = Float32(Float32(uy * Float32(2.0)) * Float32(pi)) return Float32(Float32(Float32(Float32(cos(t_2) * t_1) * xi) + Float32(Float32(sin(t_2) * t_1) * yi)) + Float32(t_0 * zi)) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = ((single(1.0) - ux) * maxCos) * ux; t_1 = sqrt((single(1.0) - (t_0 * t_0))); t_2 = (uy * single(2.0)) * single(pi); tmp = (((cos(t_2) * t_1) * xi) + ((sin(t_2) * t_1) * yi)) + (t_0 * zi); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(\left(1 - ux\right) \cdot maxCos\right) \cdot ux\\
t_1 := \sqrt{1 - t\_0 \cdot t\_0}\\
t_2 := \left(uy \cdot 2\right) \cdot \pi\\
\left(\left(\cos t\_2 \cdot t\_1\right) \cdot xi + \left(\sin t\_2 \cdot t\_1\right) \cdot yi\right) + t\_0 \cdot zi
\end{array}
\end{array}
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(fma
(cos (* uy (* 2.0 PI)))
(*
(sqrt
(+ (* (* (- 1.0 ux) (* ux maxCos)) (* (* ux maxCos) (+ ux -1.0))) 1.0))
xi)
(+
(* maxCos (* ux (* (- 1.0 ux) zi)))
(* yi (sin (* 2.0 (cbrt (* (pow PI 3.0) (pow uy 3.0)))))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return fmaf(cosf((uy * (2.0f * ((float) M_PI)))), (sqrtf(((((1.0f - ux) * (ux * maxCos)) * ((ux * maxCos) * (ux + -1.0f))) + 1.0f)) * xi), ((maxCos * (ux * ((1.0f - ux) * zi))) + (yi * sinf((2.0f * cbrtf((powf(((float) M_PI), 3.0f) * powf(uy, 3.0f))))))));
}
function code(xi, yi, zi, ux, uy, maxCos) return fma(cos(Float32(uy * Float32(Float32(2.0) * Float32(pi)))), Float32(sqrt(Float32(Float32(Float32(Float32(Float32(1.0) - ux) * Float32(ux * maxCos)) * Float32(Float32(ux * maxCos) * Float32(ux + Float32(-1.0)))) + Float32(1.0))) * xi), Float32(Float32(maxCos * Float32(ux * Float32(Float32(Float32(1.0) - ux) * zi))) + Float32(yi * sin(Float32(Float32(2.0) * cbrt(Float32((Float32(pi) ^ Float32(3.0)) * (uy ^ Float32(3.0))))))))) end
\begin{array}{l}
\\
\mathsf{fma}\left(\cos \left(uy \cdot \left(2 \cdot \pi\right)\right), \sqrt{\left(\left(1 - ux\right) \cdot \left(ux \cdot maxCos\right)\right) \cdot \left(\left(ux \cdot maxCos\right) \cdot \left(ux + -1\right)\right) + 1} \cdot xi, maxCos \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot zi\right)\right) + yi \cdot \sin \left(2 \cdot \sqrt[3]{{\pi}^{3} \cdot {uy}^{3}}\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
*-commutative99.2%
add-cbrt-cube99.2%
add-cbrt-cube99.1%
cbrt-unprod99.2%
pow399.2%
pow399.2%
Applied egg-rr99.2%
Final simplification99.2%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(fma
(cos (* uy (* 2.0 PI)))
(*
(sqrt
(+ (* (* (- 1.0 ux) (* ux maxCos)) (* (* ux maxCos) (+ ux -1.0))) 1.0))
xi)
(+ (* maxCos (* ux (* (- 1.0 ux) zi))) (* yi (sin (* 2.0 (* uy PI)))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return fmaf(cosf((uy * (2.0f * ((float) M_PI)))), (sqrtf(((((1.0f - ux) * (ux * maxCos)) * ((ux * maxCos) * (ux + -1.0f))) + 1.0f)) * xi), ((maxCos * (ux * ((1.0f - ux) * zi))) + (yi * sinf((2.0f * (uy * ((float) M_PI)))))));
}
function code(xi, yi, zi, ux, uy, maxCos) return fma(cos(Float32(uy * Float32(Float32(2.0) * Float32(pi)))), Float32(sqrt(Float32(Float32(Float32(Float32(Float32(1.0) - ux) * Float32(ux * maxCos)) * Float32(Float32(ux * maxCos) * Float32(ux + Float32(-1.0)))) + Float32(1.0))) * xi), Float32(Float32(maxCos * Float32(ux * Float32(Float32(Float32(1.0) - ux) * zi))) + Float32(yi * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi))))))) end
\begin{array}{l}
\\
\mathsf{fma}\left(\cos \left(uy \cdot \left(2 \cdot \pi\right)\right), \sqrt{\left(\left(1 - ux\right) \cdot \left(ux \cdot maxCos\right)\right) \cdot \left(\left(ux \cdot maxCos\right) \cdot \left(ux + -1\right)\right) + 1} \cdot xi, maxCos \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot zi\right)\right) + yi \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
Final simplification99.2%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(+
(+
(*
xi
(*
(cos (* PI (* uy 2.0)))
(sqrt
(+ (* (* ux (* (- 1.0 ux) maxCos)) (* ux (* maxCos (+ ux -1.0)))) 1.0))))
(* yi (sin (* uy (* 2.0 PI)))))
(* zi (* maxCos (* ux (- 1.0 ux))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return ((xi * (cosf((((float) M_PI) * (uy * 2.0f))) * sqrtf((((ux * ((1.0f - ux) * maxCos)) * (ux * (maxCos * (ux + -1.0f)))) + 1.0f)))) + (yi * sinf((uy * (2.0f * ((float) M_PI)))))) + (zi * (maxCos * (ux * (1.0f - ux))));
}
function code(xi, yi, zi, ux, uy, maxCos) return Float32(Float32(Float32(xi * Float32(cos(Float32(Float32(pi) * Float32(uy * Float32(2.0)))) * sqrt(Float32(Float32(Float32(ux * Float32(Float32(Float32(1.0) - ux) * maxCos)) * Float32(ux * Float32(maxCos * Float32(ux + Float32(-1.0))))) + Float32(1.0))))) + Float32(yi * sin(Float32(uy * Float32(Float32(2.0) * Float32(pi)))))) + Float32(zi * Float32(maxCos * Float32(ux * Float32(Float32(1.0) - ux))))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = ((xi * (cos((single(pi) * (uy * single(2.0)))) * sqrt((((ux * ((single(1.0) - ux) * maxCos)) * (ux * (maxCos * (ux + single(-1.0))))) + single(1.0))))) + (yi * sin((uy * (single(2.0) * single(pi)))))) + (zi * (maxCos * (ux * (single(1.0) - ux)))); end
\begin{array}{l}
\\
\left(xi \cdot \left(\cos \left(\pi \cdot \left(uy \cdot 2\right)\right) \cdot \sqrt{\left(ux \cdot \left(\left(1 - ux\right) \cdot maxCos\right)\right) \cdot \left(ux \cdot \left(maxCos \cdot \left(ux + -1\right)\right)\right) + 1}\right) + yi \cdot \sin \left(uy \cdot \left(2 \cdot \pi\right)\right)\right) + zi \cdot \left(maxCos \cdot \left(ux \cdot \left(1 - ux\right)\right)\right)
\end{array}
Initial program 99.1%
Taylor expanded in ux around 0 99.0%
mul-1-neg99.0%
distribute-rgt-neg-out99.0%
distribute-lft-in99.0%
associate-*l*99.0%
*-rgt-identity99.0%
distribute-lft-out99.0%
sub-neg99.0%
*-commutative99.0%
associate-*r*99.1%
Simplified99.1%
Taylor expanded in ux around 0 99.1%
associate-*r*99.1%
*-commutative99.1%
associate-*l*99.1%
Simplified99.1%
Final simplification99.1%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* 2.0 (* uy PI))))
(+
(* maxCos (* ux (* (- 1.0 ux) zi)))
(+ (* yi (sin t_0)) (* xi (cos t_0))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = 2.0f * (uy * ((float) M_PI));
return (maxCos * (ux * ((1.0f - ux) * zi))) + ((yi * sinf(t_0)) + (xi * cosf(t_0)));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(2.0) * Float32(uy * Float32(pi))) return Float32(Float32(maxCos * Float32(ux * Float32(Float32(Float32(1.0) - ux) * zi))) + Float32(Float32(yi * sin(t_0)) + Float32(xi * cos(t_0)))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = single(2.0) * (uy * single(pi)); tmp = (maxCos * (ux * ((single(1.0) - ux) * zi))) + ((yi * sin(t_0)) + (xi * cos(t_0))); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := 2 \cdot \left(uy \cdot \pi\right)\\
maxCos \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot zi\right)\right) + \left(yi \cdot \sin t\_0 + xi \cdot \cos t\_0\right)
\end{array}
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in maxCos around 0 98.8%
Final simplification98.8%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (let* ((t_0 (* 2.0 (* uy PI)))) (+ (+ (* yi (sin t_0)) (* xi (cos t_0))) (* maxCos (* ux zi)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = 2.0f * (uy * ((float) M_PI));
return ((yi * sinf(t_0)) + (xi * cosf(t_0))) + (maxCos * (ux * zi));
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(2.0) * Float32(uy * Float32(pi))) return Float32(Float32(Float32(yi * sin(t_0)) + Float32(xi * cos(t_0))) + Float32(maxCos * Float32(ux * zi))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) t_0 = single(2.0) * (uy * single(pi)); tmp = ((yi * sin(t_0)) + (xi * cos(t_0))) + (maxCos * (ux * zi)); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := 2 \cdot \left(uy \cdot \pi\right)\\
\left(yi \cdot \sin t\_0 + xi \cdot \cos t\_0\right) + maxCos \cdot \left(ux \cdot zi\right)
\end{array}
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in ux around 0 95.6%
Final simplification95.6%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (* 2.0 (* uy PI))) (t_1 (* xi (cos t_0))))
(if (<= uy 0.002300000051036477)
(+ (* maxCos (* ux zi)) (+ t_1 (* (* uy 2.0) (* PI yi))))
(+ (* yi (sin t_0)) t_1))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = 2.0f * (uy * ((float) M_PI));
float t_1 = xi * cosf(t_0);
float tmp;
if (uy <= 0.002300000051036477f) {
tmp = (maxCos * (ux * zi)) + (t_1 + ((uy * 2.0f) * (((float) M_PI) * yi)));
} else {
tmp = (yi * sinf(t_0)) + t_1;
}
return tmp;
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = Float32(Float32(2.0) * Float32(uy * Float32(pi))) t_1 = Float32(xi * cos(t_0)) tmp = Float32(0.0) if (uy <= Float32(0.002300000051036477)) tmp = Float32(Float32(maxCos * Float32(ux * zi)) + Float32(t_1 + Float32(Float32(uy * Float32(2.0)) * Float32(Float32(pi) * yi)))); else tmp = Float32(Float32(yi * sin(t_0)) + t_1); end return tmp end
function tmp_2 = code(xi, yi, zi, ux, uy, maxCos) t_0 = single(2.0) * (uy * single(pi)); t_1 = xi * cos(t_0); tmp = single(0.0); if (uy <= single(0.002300000051036477)) tmp = (maxCos * (ux * zi)) + (t_1 + ((uy * single(2.0)) * (single(pi) * yi))); else tmp = (yi * sin(t_0)) + t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := 2 \cdot \left(uy \cdot \pi\right)\\
t_1 := xi \cdot \cos t\_0\\
\mathbf{if}\;uy \leq 0.002300000051036477:\\
\;\;\;\;maxCos \cdot \left(ux \cdot zi\right) + \left(t\_1 + \left(uy \cdot 2\right) \cdot \left(\pi \cdot yi\right)\right)\\
\mathbf{else}:\\
\;\;\;\;yi \cdot \sin t\_0 + t\_1\\
\end{array}
\end{array}
if uy < 0.00230000005Initial program 99.3%
associate-+l+99.4%
associate-*l*99.4%
fma-define99.4%
Simplified99.5%
Taylor expanded in maxCos around 0 99.5%
expm1-log1p-u99.5%
expm1-undefine99.5%
Applied egg-rr99.5%
expm1-define99.5%
Simplified99.5%
Taylor expanded in ux around 0 96.0%
Taylor expanded in uy around 0 95.2%
associate-*r*95.2%
*-commutative95.2%
Simplified95.2%
if 0.00230000005 < uy Initial program 98.3%
associate-+l+98.3%
associate-*l*98.3%
fma-define98.4%
Simplified98.4%
Taylor expanded in maxCos around 0 98.4%
expm1-log1p-u98.2%
expm1-undefine98.2%
Applied egg-rr98.2%
expm1-define98.2%
Simplified98.2%
Taylor expanded in ux around 0 91.1%
Final simplification94.0%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ (* maxCos (* ux zi)) (+ (* xi (cos (* 2.0 (* uy PI)))) (* (* uy 2.0) (* PI yi)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return (maxCos * (ux * zi)) + ((xi * cosf((2.0f * (uy * ((float) M_PI))))) + ((uy * 2.0f) * (((float) M_PI) * yi)));
}
function code(xi, yi, zi, ux, uy, maxCos) return Float32(Float32(maxCos * Float32(ux * zi)) + Float32(Float32(xi * cos(Float32(Float32(2.0) * Float32(uy * Float32(pi))))) + Float32(Float32(uy * Float32(2.0)) * Float32(Float32(pi) * yi)))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = (maxCos * (ux * zi)) + ((xi * cos((single(2.0) * (uy * single(pi))))) + ((uy * single(2.0)) * (single(pi) * yi))); end
\begin{array}{l}
\\
maxCos \cdot \left(ux \cdot zi\right) + \left(xi \cdot \cos \left(2 \cdot \left(uy \cdot \pi\right)\right) + \left(uy \cdot 2\right) \cdot \left(\pi \cdot yi\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in ux around 0 95.6%
Taylor expanded in uy around 0 87.0%
associate-*r*87.0%
*-commutative87.0%
Simplified87.0%
Final simplification87.0%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (if (or (<= yi -1.999999943436137e-9) (not (<= yi 3.99999987306209e-21))) (* yi (sin (* 2.0 (* uy PI)))) (+ xi (* zi (* ux (* (- 1.0 ux) maxCos))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float tmp;
if ((yi <= -1.999999943436137e-9f) || !(yi <= 3.99999987306209e-21f)) {
tmp = yi * sinf((2.0f * (uy * ((float) M_PI))));
} else {
tmp = xi + (zi * (ux * ((1.0f - ux) * maxCos)));
}
return tmp;
}
function code(xi, yi, zi, ux, uy, maxCos) tmp = Float32(0.0) if ((yi <= Float32(-1.999999943436137e-9)) || !(yi <= Float32(3.99999987306209e-21))) tmp = Float32(yi * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi))))); else tmp = Float32(xi + Float32(zi * Float32(ux * Float32(Float32(Float32(1.0) - ux) * maxCos)))); end return tmp end
function tmp_2 = code(xi, yi, zi, ux, uy, maxCos) tmp = single(0.0); if ((yi <= single(-1.999999943436137e-9)) || ~((yi <= single(3.99999987306209e-21)))) tmp = yi * sin((single(2.0) * (uy * single(pi)))); else tmp = xi + (zi * (ux * ((single(1.0) - ux) * maxCos))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;yi \leq -1.999999943436137 \cdot 10^{-9} \lor \neg \left(yi \leq 3.99999987306209 \cdot 10^{-21}\right):\\
\;\;\;\;yi \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\\
\mathbf{else}:\\
\;\;\;\;xi + zi \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot maxCos\right)\right)\\
\end{array}
\end{array}
if yi < -1.99999994e-9 or 3.9999999e-21 < yi Initial program 98.7%
associate-+l+98.7%
associate-*l*98.7%
fma-define98.7%
Simplified98.7%
Taylor expanded in maxCos around 0 98.7%
expm1-log1p-u98.6%
expm1-undefine98.6%
Applied egg-rr98.6%
expm1-define98.6%
Simplified98.6%
Taylor expanded in yi around inf 65.7%
if -1.99999994e-9 < yi < 3.9999999e-21Initial program 99.3%
associate-*r*99.3%
add-cube-cbrt99.0%
pow398.9%
associate-*r*98.9%
Applied egg-rr98.9%
Taylor expanded in uy around 0 73.6%
*-commutative73.6%
unpow273.6%
unpow273.6%
swap-sqr73.6%
unpow273.6%
swap-sqr73.6%
*-commutative73.6%
associate-*r*73.6%
*-commutative73.6%
associate-*r*73.6%
unpow273.6%
Simplified73.6%
Taylor expanded in ux around 0 73.3%
Final simplification70.1%
(FPCore (xi yi zi ux uy maxCos)
:precision binary32
(let* ((t_0 (sin (* 2.0 (* uy PI)))))
(if (<= yi -1.999999943436137e-9)
(* zi (* yi (/ t_0 zi)))
(if (<= yi 3.99999987306209e-21)
(+ xi (* zi (* ux (* (- 1.0 ux) maxCos))))
(* yi t_0)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
float t_0 = sinf((2.0f * (uy * ((float) M_PI))));
float tmp;
if (yi <= -1.999999943436137e-9f) {
tmp = zi * (yi * (t_0 / zi));
} else if (yi <= 3.99999987306209e-21f) {
tmp = xi + (zi * (ux * ((1.0f - ux) * maxCos)));
} else {
tmp = yi * t_0;
}
return tmp;
}
function code(xi, yi, zi, ux, uy, maxCos) t_0 = sin(Float32(Float32(2.0) * Float32(uy * Float32(pi)))) tmp = Float32(0.0) if (yi <= Float32(-1.999999943436137e-9)) tmp = Float32(zi * Float32(yi * Float32(t_0 / zi))); elseif (yi <= Float32(3.99999987306209e-21)) tmp = Float32(xi + Float32(zi * Float32(ux * Float32(Float32(Float32(1.0) - ux) * maxCos)))); else tmp = Float32(yi * t_0); end return tmp end
function tmp_2 = code(xi, yi, zi, ux, uy, maxCos) t_0 = sin((single(2.0) * (uy * single(pi)))); tmp = single(0.0); if (yi <= single(-1.999999943436137e-9)) tmp = zi * (yi * (t_0 / zi)); elseif (yi <= single(3.99999987306209e-21)) tmp = xi + (zi * (ux * ((single(1.0) - ux) * maxCos))); else tmp = yi * t_0; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\\
\mathbf{if}\;yi \leq -1.999999943436137 \cdot 10^{-9}:\\
\;\;\;\;zi \cdot \left(yi \cdot \frac{t\_0}{zi}\right)\\
\mathbf{elif}\;yi \leq 3.99999987306209 \cdot 10^{-21}:\\
\;\;\;\;xi + zi \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot maxCos\right)\right)\\
\mathbf{else}:\\
\;\;\;\;yi \cdot t\_0\\
\end{array}
\end{array}
if yi < -1.99999994e-9Initial program 98.4%
associate-+l+98.4%
associate-*l*98.4%
fma-define98.5%
Simplified98.5%
Taylor expanded in maxCos around 0 98.5%
expm1-log1p-u98.5%
expm1-undefine98.5%
Applied egg-rr98.5%
expm1-define98.5%
Simplified98.5%
Taylor expanded in zi around -inf 95.9%
Simplified95.9%
Taylor expanded in yi around inf 70.5%
mul-1-neg70.5%
associate-/l*70.8%
distribute-rgt-neg-in70.8%
distribute-neg-frac270.8%
Simplified70.8%
if -1.99999994e-9 < yi < 3.9999999e-21Initial program 99.3%
associate-*r*99.3%
add-cube-cbrt99.0%
pow398.9%
associate-*r*98.9%
Applied egg-rr98.9%
Taylor expanded in uy around 0 73.6%
*-commutative73.6%
unpow273.6%
unpow273.6%
swap-sqr73.6%
unpow273.6%
swap-sqr73.6%
*-commutative73.6%
associate-*r*73.6%
*-commutative73.6%
associate-*r*73.6%
unpow273.6%
Simplified73.6%
Taylor expanded in ux around 0 73.3%
if 3.9999999e-21 < yi Initial program 98.9%
associate-+l+98.9%
associate-*l*98.8%
fma-define98.9%
Simplified98.9%
Taylor expanded in maxCos around 0 98.9%
expm1-log1p-u98.7%
expm1-undefine98.7%
Applied egg-rr98.7%
expm1-define98.7%
Simplified98.7%
Taylor expanded in yi around inf 62.7%
Final simplification70.1%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ (* maxCos (* ux zi)) (+ xi (* yi (sin (* 2.0 (* uy PI)))))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return (maxCos * (ux * zi)) + (xi + (yi * sinf((2.0f * (uy * ((float) M_PI))))));
}
function code(xi, yi, zi, ux, uy, maxCos) return Float32(Float32(maxCos * Float32(ux * zi)) + Float32(xi + Float32(yi * sin(Float32(Float32(2.0) * Float32(uy * Float32(pi))))))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = (maxCos * (ux * zi)) + (xi + (yi * sin((single(2.0) * (uy * single(pi)))))); end
\begin{array}{l}
\\
maxCos \cdot \left(ux \cdot zi\right) + \left(xi + yi \cdot \sin \left(2 \cdot \left(uy \cdot \pi\right)\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in ux around 0 95.6%
Taylor expanded in uy around 0 85.6%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (+ xi (* zi (* ux (* (- 1.0 ux) maxCos)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return xi + (zi * (ux * ((1.0f - ux) * maxCos)));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = xi + (zi * (ux * ((1.0e0 - ux) * maxcos)))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(xi + Float32(zi * Float32(ux * Float32(Float32(Float32(1.0) - ux) * maxCos)))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = xi + (zi * (ux * ((single(1.0) - ux) * maxCos))); end
\begin{array}{l}
\\
xi + zi \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot maxCos\right)\right)
\end{array}
Initial program 99.1%
associate-*r*99.1%
add-cube-cbrt98.9%
pow398.8%
associate-*r*98.8%
Applied egg-rr98.8%
Taylor expanded in uy around 0 52.5%
*-commutative52.5%
unpow252.5%
unpow252.5%
swap-sqr52.5%
unpow252.5%
swap-sqr52.5%
*-commutative52.5%
associate-*r*52.5%
*-commutative52.5%
associate-*r*52.5%
unpow252.5%
Simplified52.5%
Taylor expanded in ux around 0 52.3%
Final simplification52.3%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (* zi (* maxCos (* ux (- 1.0 ux)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return zi * (maxCos * (ux * (1.0f - ux)));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = zi * (maxcos * (ux * (1.0e0 - ux)))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(zi * Float32(maxCos * Float32(ux * Float32(Float32(1.0) - ux)))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = zi * (maxCos * (ux * (single(1.0) - ux))); end
\begin{array}{l}
\\
zi \cdot \left(maxCos \cdot \left(ux \cdot \left(1 - ux\right)\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in zi around -inf 98.4%
Simplified98.4%
Taylor expanded in zi around inf 13.3%
associate-*r*13.3%
mul-1-neg13.3%
Simplified13.3%
Final simplification13.3%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (* maxCos (* ux (- zi (* ux zi)))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return maxCos * (ux * (zi - (ux * zi)));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = maxcos * (ux * (zi - (ux * zi)))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(maxCos * Float32(ux * Float32(zi - Float32(ux * zi)))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = maxCos * (ux * (zi - (ux * zi))); end
\begin{array}{l}
\\
maxCos \cdot \left(ux \cdot \left(zi - ux \cdot zi\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in zi around inf 13.3%
Taylor expanded in ux around 0 13.3%
mul-1-neg13.3%
unsub-neg13.3%
Simplified13.3%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (* maxCos (* ux (* (- 1.0 ux) zi))))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return maxCos * (ux * ((1.0f - ux) * zi));
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = maxcos * (ux * ((1.0e0 - ux) * zi))
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(maxCos * Float32(ux * Float32(Float32(Float32(1.0) - ux) * zi))) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = maxCos * (ux * ((single(1.0) - ux) * zi)); end
\begin{array}{l}
\\
maxCos \cdot \left(ux \cdot \left(\left(1 - ux\right) \cdot zi\right)\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in zi around inf 13.3%
Final simplification13.3%
(FPCore (xi yi zi ux uy maxCos) :precision binary32 (* maxCos (* ux zi)))
float code(float xi, float yi, float zi, float ux, float uy, float maxCos) {
return maxCos * (ux * zi);
}
real(4) function code(xi, yi, zi, ux, uy, maxcos)
real(4), intent (in) :: xi
real(4), intent (in) :: yi
real(4), intent (in) :: zi
real(4), intent (in) :: ux
real(4), intent (in) :: uy
real(4), intent (in) :: maxcos
code = maxcos * (ux * zi)
end function
function code(xi, yi, zi, ux, uy, maxCos) return Float32(maxCos * Float32(ux * zi)) end
function tmp = code(xi, yi, zi, ux, uy, maxCos) tmp = maxCos * (ux * zi); end
\begin{array}{l}
\\
maxCos \cdot \left(ux \cdot zi\right)
\end{array}
Initial program 99.1%
associate-+l+99.1%
associate-*l*99.1%
fma-define99.1%
Simplified99.2%
Taylor expanded in maxCos around 0 99.2%
expm1-log1p-u99.1%
expm1-undefine99.1%
Applied egg-rr99.1%
expm1-define99.1%
Simplified99.1%
Taylor expanded in zi around inf 13.3%
Taylor expanded in ux around 0 11.8%
herbie shell --seed 2024177
(FPCore (xi yi zi ux uy maxCos)
:name "UniformSampleCone 2"
:precision binary32
:pre (and (and (and (and (and (and (<= -10000.0 xi) (<= xi 10000.0)) (and (<= -10000.0 yi) (<= yi 10000.0))) (and (<= -10000.0 zi) (<= zi 10000.0))) (and (<= 2.328306437e-10 ux) (<= ux 1.0))) (and (<= 2.328306437e-10 uy) (<= uy 1.0))) (and (<= 0.0 maxCos) (<= maxCos 1.0)))
(+ (+ (* (* (cos (* (* uy 2.0) PI)) (sqrt (- 1.0 (* (* (* (- 1.0 ux) maxCos) ux) (* (* (- 1.0 ux) maxCos) ux))))) xi) (* (* (sin (* (* uy 2.0) PI)) (sqrt (- 1.0 (* (* (* (- 1.0 ux) maxCos) ux) (* (* (- 1.0 ux) maxCos) ux))))) yi)) (* (* (* (- 1.0 ux) maxCos) ux) zi)))