
(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 14 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
(*
ux
(+ (* (- 1.0 maxCos) (* ux (+ maxCos -1.0))) (+ 2.0 (* maxCos -2.0)))))))
float code(float ux, float uy, float maxCos) {
return sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf((ux * (((1.0f - maxCos) * (ux * (maxCos + -1.0f))) + (2.0f + (maxCos * -2.0f)))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * Float32(maxCos + Float32(-1.0)))) + Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0))))))) end
function tmp = code(ux, uy, maxCos) tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt((ux * (((single(1.0) - maxCos) * (ux * (maxCos + single(-1.0)))) + (single(2.0) + (maxCos * single(-2.0)))))); end
\begin{array}{l}
\\
\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{ux \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot \left(maxCos + -1\right)\right) + \left(2 + maxCos \cdot -2\right)\right)}
\end{array}
Initial program 56.9%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
+-commutativeN/A
metadata-evalN/A
associate-+l+N/A
+-lowering-+.f32N/A
Simplified98.4%
Final simplification98.4%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* uy 2.0) 0.02199999988079071)
(*
(sqrt
(*
ux
(+ (* (- 1.0 maxCos) (* ux (+ maxCos -1.0))) (+ 2.0 (* maxCos -2.0)))))
(*
uy
(+ (* -1.3333333333333333 (* (* uy uy) (* PI (* PI PI)))) (* 2.0 PI))))
(* (sin (* (* uy 2.0) PI)) (sqrt (* (* ux ux) (+ -1.0 (/ 2.0 ux)))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((uy * 2.0f) <= 0.02199999988079071f) {
tmp = sqrtf((ux * (((1.0f - maxCos) * (ux * (maxCos + -1.0f))) + (2.0f + (maxCos * -2.0f))))) * (uy * ((-1.3333333333333333f * ((uy * uy) * (((float) M_PI) * (((float) M_PI) * ((float) M_PI))))) + (2.0f * ((float) M_PI))));
} else {
tmp = sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf(((ux * ux) * (-1.0f + (2.0f / ux))));
}
return tmp;
}
function code(ux, uy, maxCos) tmp = Float32(0.0) if (Float32(uy * Float32(2.0)) <= Float32(0.02199999988079071)) tmp = Float32(sqrt(Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * Float32(maxCos + Float32(-1.0)))) + Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))) * Float32(uy * Float32(Float32(Float32(-1.3333333333333333) * Float32(Float32(uy * uy) * Float32(Float32(pi) * Float32(Float32(pi) * Float32(pi))))) + Float32(Float32(2.0) * Float32(pi))))); else tmp = Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(Float32(ux * ux) * Float32(Float32(-1.0) + 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(0.02199999988079071)) tmp = sqrt((ux * (((single(1.0) - maxCos) * (ux * (maxCos + single(-1.0)))) + (single(2.0) + (maxCos * single(-2.0)))))) * (uy * ((single(-1.3333333333333333) * ((uy * uy) * (single(pi) * (single(pi) * single(pi))))) + (single(2.0) * single(pi)))); else tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt(((ux * ux) * (single(-1.0) + (single(2.0) / ux)))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;uy \cdot 2 \leq 0.02199999988079071:\\
\;\;\;\;\sqrt{ux \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot \left(maxCos + -1\right)\right) + \left(2 + maxCos \cdot -2\right)\right)} \cdot \left(uy \cdot \left(-1.3333333333333333 \cdot \left(\left(uy \cdot uy\right) \cdot \left(\pi \cdot \left(\pi \cdot \pi\right)\right)\right) + 2 \cdot \pi\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{\left(ux \cdot ux\right) \cdot \left(-1 + \frac{2}{ux}\right)}\\
\end{array}
\end{array}
if (*.f32 uy #s(literal 2 binary32)) < 0.0219999999Initial program 57.2%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
+-commutativeN/A
metadata-evalN/A
associate-+l+N/A
+-lowering-+.f32N/A
Simplified98.6%
Taylor expanded in uy around 0
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
cube-multN/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f3298.6%
Simplified98.6%
if 0.0219999999 < (*.f32 uy #s(literal 2 binary32)) Initial program 55.5%
Taylor expanded in maxCos around 0
--lowering--.f32N/A
unpow2N/A
*-lowering-*.f32N/A
--lowering--.f32N/A
--lowering--.f3255.0%
Simplified55.0%
Taylor expanded in ux around inf
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
associate-*r/N/A
metadata-evalN/A
/-lowering-/.f3292.7%
Simplified92.7%
Final simplification97.4%
(FPCore (ux uy maxCos) :precision binary32 (* (sin (* (* uy 2.0) PI)) (sqrt (- (* ux (- 2.0 ux)) (* (* ux maxCos) (+ 2.0 (* ux -2.0)))))))
float code(float ux, float uy, float maxCos) {
return sinf(((uy * 2.0f) * ((float) M_PI))) * sqrtf(((ux * (2.0f - ux)) - ((ux * maxCos) * (2.0f + (ux * -2.0f)))));
}
function code(ux, uy, maxCos) return Float32(sin(Float32(Float32(uy * Float32(2.0)) * Float32(pi))) * sqrt(Float32(Float32(ux * Float32(Float32(2.0) - ux)) - Float32(Float32(ux * maxCos) * Float32(Float32(2.0) + Float32(ux * Float32(-2.0))))))) end
function tmp = code(ux, uy, maxCos) tmp = sin(((uy * single(2.0)) * single(pi))) * sqrt(((ux * (single(2.0) - ux)) - ((ux * maxCos) * (single(2.0) + (ux * single(-2.0)))))); end
\begin{array}{l}
\\
\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - ux\right) - \left(ux \cdot maxCos\right) \cdot \left(2 + ux \cdot -2\right)}
\end{array}
Initial program 56.9%
Taylor expanded in ux around 0
+-lowering-+.f32N/A
*-lowering-*.f32N/A
associate--l+N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f3259.6%
Simplified59.6%
associate--r+N/A
metadata-evalN/A
flip3--N/A
/-lowering-/.f32N/A
Applied egg-rr98.3%
Applied egg-rr98.3%
Taylor expanded in maxCos around 0
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
--lowering--.f32N/A
mul-1-negN/A
distribute-rgt-neg-inN/A
mul-1-negN/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
distribute-lft-inN/A
metadata-evalN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
--lowering--.f32N/A
associate-*r*N/A
*-lowering-*.f32N/A
*-commutativeN/A
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-commutativeN/A
*-lowering-*.f3297.5%
Simplified97.5%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* uy 2.0) 0.03999999910593033)
(*
(sqrt
(*
ux
(+ (* (- 1.0 maxCos) (* ux (+ maxCos -1.0))) (+ 2.0 (* maxCos -2.0)))))
(*
uy
(+ (* -1.3333333333333333 (* (* uy uy) (* PI (* PI PI)))) (* 2.0 PI))))
(* (sin (* (* uy 2.0) PI)) (sqrt (* ux (- 2.0 ux))))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((uy * 2.0f) <= 0.03999999910593033f) {
tmp = sqrtf((ux * (((1.0f - maxCos) * (ux * (maxCos + -1.0f))) + (2.0f + (maxCos * -2.0f))))) * (uy * ((-1.3333333333333333f * ((uy * uy) * (((float) M_PI) * (((float) M_PI) * ((float) M_PI))))) + (2.0f * ((float) M_PI))));
} 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(uy * Float32(2.0)) <= Float32(0.03999999910593033)) tmp = Float32(sqrt(Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * Float32(maxCos + Float32(-1.0)))) + Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))) * Float32(uy * Float32(Float32(Float32(-1.3333333333333333) * Float32(Float32(uy * uy) * Float32(Float32(pi) * Float32(Float32(pi) * Float32(pi))))) + Float32(Float32(2.0) * Float32(pi))))); else tmp = Float32(sin(Float32(Float32(uy * 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 ((uy * single(2.0)) <= single(0.03999999910593033)) tmp = sqrt((ux * (((single(1.0) - maxCos) * (ux * (maxCos + single(-1.0)))) + (single(2.0) + (maxCos * single(-2.0)))))) * (uy * ((single(-1.3333333333333333) * ((uy * uy) * (single(pi) * (single(pi) * single(pi))))) + (single(2.0) * single(pi)))); 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}\;uy \cdot 2 \leq 0.03999999910593033:\\
\;\;\;\;\sqrt{ux \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot \left(maxCos + -1\right)\right) + \left(2 + maxCos \cdot -2\right)\right)} \cdot \left(uy \cdot \left(-1.3333333333333333 \cdot \left(\left(uy \cdot uy\right) \cdot \left(\pi \cdot \left(\pi \cdot \pi\right)\right)\right) + 2 \cdot \pi\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{ux \cdot \left(2 - ux\right)}\\
\end{array}
\end{array}
if (*.f32 uy #s(literal 2 binary32)) < 0.0399999991Initial program 57.0%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
+-commutativeN/A
metadata-evalN/A
associate-+l+N/A
+-lowering-+.f32N/A
Simplified98.7%
Taylor expanded in uy around 0
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
cube-multN/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f3298.4%
Simplified98.4%
if 0.0399999991 < (*.f32 uy #s(literal 2 binary32)) Initial program 56.4%
Taylor expanded in ux around 0
+-lowering-+.f32N/A
*-lowering-*.f32N/A
associate--l+N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f3260.1%
Simplified60.1%
associate--r+N/A
metadata-evalN/A
flip3--N/A
/-lowering-/.f32N/A
Applied egg-rr97.1%
Applied egg-rr96.9%
Taylor expanded in maxCos around 0
mul-1-negN/A
distribute-rgt-neg-inN/A
mul-1-negN/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
distribute-lft-inN/A
metadata-evalN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
--lowering--.f3292.6%
Simplified92.6%
Final simplification97.4%
(FPCore (ux uy maxCos)
:precision binary32
(if (<= (* uy 2.0) 0.07999999821186066)
(*
(sqrt
(*
ux
(+ (* (- 1.0 maxCos) (* ux (+ maxCos -1.0))) (+ 2.0 (* maxCos -2.0)))))
(*
uy
(+ (* -1.3333333333333333 (* (* uy uy) (* PI (* PI PI)))) (* 2.0 PI))))
(* (sin (* (* uy 2.0) PI)) (sqrt (* 2.0 ux)))))
float code(float ux, float uy, float maxCos) {
float tmp;
if ((uy * 2.0f) <= 0.07999999821186066f) {
tmp = sqrtf((ux * (((1.0f - maxCos) * (ux * (maxCos + -1.0f))) + (2.0f + (maxCos * -2.0f))))) * (uy * ((-1.3333333333333333f * ((uy * uy) * (((float) M_PI) * (((float) M_PI) * ((float) M_PI))))) + (2.0f * ((float) M_PI))));
} 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 (Float32(uy * Float32(2.0)) <= Float32(0.07999999821186066)) tmp = Float32(sqrt(Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * Float32(maxCos + Float32(-1.0)))) + Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))) * Float32(uy * Float32(Float32(Float32(-1.3333333333333333) * Float32(Float32(uy * uy) * Float32(Float32(pi) * Float32(Float32(pi) * Float32(pi))))) + Float32(Float32(2.0) * Float32(pi))))); else tmp = Float32(sin(Float32(Float32(uy * 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(2.0)) <= single(0.07999999821186066)) tmp = sqrt((ux * (((single(1.0) - maxCos) * (ux * (maxCos + single(-1.0)))) + (single(2.0) + (maxCos * single(-2.0)))))) * (uy * ((single(-1.3333333333333333) * ((uy * uy) * (single(pi) * (single(pi) * single(pi))))) + (single(2.0) * single(pi)))); 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 \cdot 2 \leq 0.07999999821186066:\\
\;\;\;\;\sqrt{ux \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot \left(maxCos + -1\right)\right) + \left(2 + maxCos \cdot -2\right)\right)} \cdot \left(uy \cdot \left(-1.3333333333333333 \cdot \left(\left(uy \cdot uy\right) \cdot \left(\pi \cdot \left(\pi \cdot \pi\right)\right)\right) + 2 \cdot \pi\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\sin \left(\left(uy \cdot 2\right) \cdot \pi\right) \cdot \sqrt{2 \cdot ux}\\
\end{array}
\end{array}
if (*.f32 uy #s(literal 2 binary32)) < 0.0799999982Initial program 57.0%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
+-commutativeN/A
metadata-evalN/A
associate-+l+N/A
+-lowering-+.f32N/A
Simplified98.7%
Taylor expanded in uy around 0
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
cube-multN/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f3298.0%
Simplified98.0%
if 0.0799999982 < (*.f32 uy #s(literal 2 binary32)) Initial program 55.9%
Taylor expanded in maxCos around 0
--lowering--.f32N/A
unpow2N/A
*-lowering-*.f32N/A
--lowering--.f32N/A
--lowering--.f3255.9%
Simplified55.9%
Taylor expanded in ux around 0
*-lowering-*.f3273.0%
Simplified73.0%
Final simplification94.1%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sqrt
(*
ux
(+ (* (- 1.0 maxCos) (* ux (+ maxCos -1.0))) (+ 2.0 (* maxCos -2.0)))))
(*
uy
(+ (* -1.3333333333333333 (* (* uy uy) (* PI (* PI PI)))) (* 2.0 PI)))))
float code(float ux, float uy, float maxCos) {
return sqrtf((ux * (((1.0f - maxCos) * (ux * (maxCos + -1.0f))) + (2.0f + (maxCos * -2.0f))))) * (uy * ((-1.3333333333333333f * ((uy * uy) * (((float) M_PI) * (((float) M_PI) * ((float) M_PI))))) + (2.0f * ((float) M_PI))));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * Float32(maxCos + Float32(-1.0)))) + Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))) * Float32(uy * Float32(Float32(Float32(-1.3333333333333333) * Float32(Float32(uy * uy) * Float32(Float32(pi) * Float32(Float32(pi) * Float32(pi))))) + Float32(Float32(2.0) * Float32(pi))))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt((ux * (((single(1.0) - maxCos) * (ux * (maxCos + single(-1.0)))) + (single(2.0) + (maxCos * single(-2.0)))))) * (uy * ((single(-1.3333333333333333) * ((uy * uy) * (single(pi) * (single(pi) * single(pi))))) + (single(2.0) * single(pi)))); end
\begin{array}{l}
\\
\sqrt{ux \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot \left(maxCos + -1\right)\right) + \left(2 + maxCos \cdot -2\right)\right)} \cdot \left(uy \cdot \left(-1.3333333333333333 \cdot \left(\left(uy \cdot uy\right) \cdot \left(\pi \cdot \left(\pi \cdot \pi\right)\right)\right) + 2 \cdot \pi\right)\right)
\end{array}
Initial program 56.9%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
+-commutativeN/A
metadata-evalN/A
associate-+l+N/A
+-lowering-+.f32N/A
Simplified98.4%
Taylor expanded in uy around 0
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
cube-multN/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f32N/A
PI-lowering-PI.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f3288.9%
Simplified88.9%
Final simplification88.9%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sqrt
(*
ux
(+ (* (- 1.0 maxCos) (* ux (+ maxCos -1.0))) (+ 2.0 (* maxCos -2.0)))))
(* 2.0 (* uy PI))))
float code(float ux, float uy, float maxCos) {
return sqrtf((ux * (((1.0f - maxCos) * (ux * (maxCos + -1.0f))) + (2.0f + (maxCos * -2.0f))))) * (2.0f * (uy * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(ux * Float32(Float32(Float32(Float32(1.0) - maxCos) * Float32(ux * Float32(maxCos + Float32(-1.0)))) + Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))) * Float32(Float32(2.0) * Float32(uy * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt((ux * (((single(1.0) - maxCos) * (ux * (maxCos + single(-1.0)))) + (single(2.0) + (maxCos * single(-2.0)))))) * (single(2.0) * (uy * single(pi))); end
\begin{array}{l}
\\
\sqrt{ux \cdot \left(\left(1 - maxCos\right) \cdot \left(ux \cdot \left(maxCos + -1\right)\right) + \left(2 + maxCos \cdot -2\right)\right)} \cdot \left(2 \cdot \left(uy \cdot \pi\right)\right)
\end{array}
Initial program 56.9%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
+-commutativeN/A
metadata-evalN/A
associate-+l+N/A
+-lowering-+.f32N/A
Simplified98.4%
Taylor expanded in uy around 0
*-lowering-*.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f3282.3%
Simplified82.3%
Final simplification82.3%
(FPCore (ux uy maxCos)
:precision binary32
(*
(sqrt
(*
ux
(+ 2.0 (+ (* (+ maxCos -1.0) (* ux (- 1.0 maxCos))) (* maxCos -2.0)))))
(* uy (* 2.0 PI))))
float code(float ux, float uy, float maxCos) {
return sqrtf((ux * (2.0f + (((maxCos + -1.0f) * (ux * (1.0f - maxCos))) + (maxCos * -2.0f))))) * (uy * (2.0f * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(ux * Float32(Float32(2.0) + Float32(Float32(Float32(maxCos + Float32(-1.0)) * Float32(ux * Float32(Float32(1.0) - maxCos))) + Float32(maxCos * Float32(-2.0)))))) * Float32(uy * Float32(Float32(2.0) * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt((ux * (single(2.0) + (((maxCos + single(-1.0)) * (ux * (single(1.0) - maxCos))) + (maxCos * single(-2.0)))))) * (uy * (single(2.0) * single(pi))); end
\begin{array}{l}
\\
\sqrt{ux \cdot \left(2 + \left(\left(maxCos + -1\right) \cdot \left(ux \cdot \left(1 - maxCos\right)\right) + maxCos \cdot -2\right)\right)} \cdot \left(uy \cdot \left(2 \cdot \pi\right)\right)
\end{array}
Initial program 56.9%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified50.2%
pow2N/A
+-commutativeN/A
pow2N/A
distribute-rgt-inN/A
*-lft-identityN/A
flip-+N/A
div-invN/A
accelerator-lowering-fma.f32N/A
Applied egg-rr49.9%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
associate--l+N/A
+-lowering-+.f32N/A
cancel-sign-sub-invN/A
+-lowering-+.f32N/A
associate-*r*N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
--lowering--.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
metadata-evalN/A
*-lowering-*.f3282.3%
Simplified82.3%
Final simplification82.3%
(FPCore (ux uy maxCos) :precision binary32 (* (* uy (* 2.0 PI)) (sqrt (* ux (+ (- 2.0 (* 2.0 maxCos)) (* ux (+ -1.0 (* 2.0 maxCos))))))))
float code(float ux, float uy, float maxCos) {
return (uy * (2.0f * ((float) M_PI))) * sqrtf((ux * ((2.0f - (2.0f * maxCos)) + (ux * (-1.0f + (2.0f * maxCos))))));
}
function code(ux, uy, maxCos) return Float32(Float32(uy * Float32(Float32(2.0) * Float32(pi))) * sqrt(Float32(ux * Float32(Float32(Float32(2.0) - Float32(Float32(2.0) * maxCos)) + Float32(ux * Float32(Float32(-1.0) + Float32(Float32(2.0) * maxCos))))))) end
function tmp = code(ux, uy, maxCos) tmp = (uy * (single(2.0) * single(pi))) * sqrt((ux * ((single(2.0) - (single(2.0) * maxCos)) + (ux * (single(-1.0) + (single(2.0) * maxCos)))))); end
\begin{array}{l}
\\
\left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(\left(2 - 2 \cdot maxCos\right) + ux \cdot \left(-1 + 2 \cdot maxCos\right)\right)}
\end{array}
Initial program 56.9%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified50.2%
pow2N/A
+-commutativeN/A
pow2N/A
distribute-rgt-inN/A
*-lft-identityN/A
associate--r+N/A
--lowering--.f32N/A
--lowering--.f32N/A
+-lowering-+.f32N/A
+-commutativeN/A
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
Applied egg-rr56.5%
Taylor expanded in maxCos around 0
sub-negN/A
mul-1-negN/A
distribute-lft-inN/A
neg-mul-1N/A
mul-1-negN/A
remove-double-negN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-rgt-outN/A
neg-mul-1N/A
sub-negN/A
+-lowering-+.f32N/A
Simplified81.7%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
associate-+r+N/A
metadata-evalN/A
cancel-sign-sub-invN/A
+-lowering-+.f32N/A
--lowering--.f32N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f32N/A
*-lowering-*.f3281.7%
Simplified81.7%
Final simplification81.7%
(FPCore (ux uy maxCos) :precision binary32 (* (* uy (* 2.0 PI)) (sqrt (+ (* -2.0 (* ux maxCos)) (+ ux (* ux (- 1.0 ux)))))))
float code(float ux, float uy, float maxCos) {
return (uy * (2.0f * ((float) M_PI))) * sqrtf(((-2.0f * (ux * maxCos)) + (ux + (ux * (1.0f - ux)))));
}
function code(ux, uy, maxCos) return Float32(Float32(uy * Float32(Float32(2.0) * Float32(pi))) * sqrt(Float32(Float32(Float32(-2.0) * Float32(ux * maxCos)) + Float32(ux + Float32(ux * Float32(Float32(1.0) - ux)))))) end
function tmp = code(ux, uy, maxCos) tmp = (uy * (single(2.0) * single(pi))) * sqrt(((single(-2.0) * (ux * maxCos)) + (ux + (ux * (single(1.0) - ux))))); end
\begin{array}{l}
\\
\left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{-2 \cdot \left(ux \cdot maxCos\right) + \left(ux + ux \cdot \left(1 - ux\right)\right)}
\end{array}
Initial program 56.9%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified50.2%
pow2N/A
+-commutativeN/A
pow2N/A
distribute-rgt-inN/A
*-lft-identityN/A
associate--r+N/A
--lowering--.f32N/A
--lowering--.f32N/A
+-lowering-+.f32N/A
+-commutativeN/A
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
Applied egg-rr56.5%
Taylor expanded in maxCos around 0
sub-negN/A
mul-1-negN/A
distribute-lft-inN/A
neg-mul-1N/A
mul-1-negN/A
remove-double-negN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-rgt-outN/A
neg-mul-1N/A
sub-negN/A
+-lowering-+.f32N/A
Simplified81.7%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
*-commutativeN/A
*-lowering-*.f3281.2%
Simplified81.2%
Final simplification81.2%
(FPCore (ux uy maxCos)
:precision binary32
(let* ((t_0 (* uy (* 2.0 PI))))
(if (<= maxCos 9.999999747378752e-6)
(* t_0 (sqrt (+ ux (* ux (- 1.0 ux)))))
(* t_0 (sqrt (* ux (+ 2.0 (* maxCos -2.0))))))))
float code(float ux, float uy, float maxCos) {
float t_0 = uy * (2.0f * ((float) M_PI));
float tmp;
if (maxCos <= 9.999999747378752e-6f) {
tmp = t_0 * sqrtf((ux + (ux * (1.0f - ux))));
} else {
tmp = t_0 * sqrtf((ux * (2.0f + (maxCos * -2.0f))));
}
return tmp;
}
function code(ux, uy, maxCos) t_0 = Float32(uy * Float32(Float32(2.0) * Float32(pi))) tmp = Float32(0.0) if (maxCos <= Float32(9.999999747378752e-6)) tmp = Float32(t_0 * sqrt(Float32(ux + Float32(ux * Float32(Float32(1.0) - ux))))); else tmp = Float32(t_0 * sqrt(Float32(ux * Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))); end return tmp end
function tmp_2 = code(ux, uy, maxCos) t_0 = uy * (single(2.0) * single(pi)); tmp = single(0.0); if (maxCos <= single(9.999999747378752e-6)) tmp = t_0 * sqrt((ux + (ux * (single(1.0) - ux)))); else tmp = t_0 * sqrt((ux * (single(2.0) + (maxCos * single(-2.0))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := uy \cdot \left(2 \cdot \pi\right)\\
\mathbf{if}\;maxCos \leq 9.999999747378752 \cdot 10^{-6}:\\
\;\;\;\;t\_0 \cdot \sqrt{ux + ux \cdot \left(1 - ux\right)}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \sqrt{ux \cdot \left(2 + maxCos \cdot -2\right)}\\
\end{array}
\end{array}
if maxCos < 9.99999975e-6Initial program 57.6%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified50.3%
pow2N/A
+-commutativeN/A
pow2N/A
distribute-rgt-inN/A
*-lft-identityN/A
associate--r+N/A
--lowering--.f32N/A
--lowering--.f32N/A
+-lowering-+.f32N/A
+-commutativeN/A
*-lowering-*.f32N/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
Applied egg-rr56.6%
Taylor expanded in maxCos around 0
distribute-lft-inN/A
neg-mul-1N/A
mul-1-negN/A
remove-double-negN/A
neg-mul-1N/A
mul-1-negN/A
remove-double-negN/A
+-lowering-+.f32N/A
*-lowering-*.f32N/A
mul-1-negN/A
unsub-negN/A
--lowering--.f3281.4%
Simplified81.4%
if 9.99999975e-6 < maxCos Initial program 52.8%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified49.7%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
metadata-evalN/A
+-lowering-+.f32N/A
*-lowering-*.f3273.3%
Simplified73.3%
Final simplification80.2%
(FPCore (ux uy maxCos) :precision binary32 (* (* uy (* 2.0 PI)) (sqrt (* ux (+ 2.0 (* maxCos -2.0))))))
float code(float ux, float uy, float maxCos) {
return (uy * (2.0f * ((float) M_PI))) * sqrtf((ux * (2.0f + (maxCos * -2.0f))));
}
function code(ux, uy, maxCos) return Float32(Float32(uy * Float32(Float32(2.0) * Float32(pi))) * sqrt(Float32(ux * Float32(Float32(2.0) + Float32(maxCos * Float32(-2.0)))))) end
function tmp = code(ux, uy, maxCos) tmp = (uy * (single(2.0) * single(pi))) * sqrt((ux * (single(2.0) + (maxCos * single(-2.0))))); end
\begin{array}{l}
\\
\left(uy \cdot \left(2 \cdot \pi\right)\right) \cdot \sqrt{ux \cdot \left(2 + maxCos \cdot -2\right)}
\end{array}
Initial program 56.9%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified50.2%
Taylor expanded in ux around 0
*-lowering-*.f32N/A
cancel-sign-sub-invN/A
metadata-evalN/A
+-lowering-+.f32N/A
*-lowering-*.f3266.9%
Simplified66.9%
Final simplification66.9%
(FPCore (ux uy maxCos) :precision binary32 (* (sqrt (* 2.0 ux)) (* 2.0 (* uy PI))))
float code(float ux, float uy, float maxCos) {
return sqrtf((2.0f * ux)) * (2.0f * (uy * ((float) M_PI)));
}
function code(ux, uy, maxCos) return Float32(sqrt(Float32(Float32(2.0) * ux)) * Float32(Float32(2.0) * Float32(uy * Float32(pi)))) end
function tmp = code(ux, uy, maxCos) tmp = sqrt((single(2.0) * ux)) * (single(2.0) * (uy * single(pi))); end
\begin{array}{l}
\\
\sqrt{2 \cdot ux} \cdot \left(2 \cdot \left(uy \cdot \pi\right)\right)
\end{array}
Initial program 56.9%
distribute-rgt-inN/A
associate--r+N/A
flip--N/A
/-lowering-/.f32N/A
Applied egg-rr56.5%
Taylor expanded in ux around 0
associate-*r*N/A
*-lowering-*.f32N/A
*-lowering-*.f32N/A
--lowering--.f32N/A
unpow2N/A
*-lowering-*.f32N/A
--lowering--.f32N/A
--lowering--.f32N/A
unpow2N/A
*-lowering-*.f3277.1%
Simplified77.1%
Taylor expanded in maxCos around 0
*-commutativeN/A
*-lowering-*.f3272.3%
Simplified72.3%
Taylor expanded in uy around 0
*-lowering-*.f32N/A
*-lowering-*.f32N/A
PI-lowering-PI.f3263.1%
Simplified63.1%
Final simplification63.1%
(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 56.9%
Taylor expanded in uy around 0
*-commutativeN/A
*-commutativeN/A
associate-*l*N/A
associate-*r*N/A
*-commutativeN/A
*-lowering-*.f32N/A
Simplified50.2%
Taylor expanded in ux around 0
Simplified7.1%
metadata-evalN/A
pow1/2N/A
metadata-evalN/A
mul0-lft7.1%
Applied egg-rr7.1%
herbie shell --seed 2024192
(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)))))))