
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* (floor w) dX.u))
(t_4 (fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2))))
(t_5 (sqrt t_4))
(t_6 (fabs (- (* t_3 t_2) (* t_0 t_1)))))
(log2
(if (> (/ t_4 t_6) (floor maxAniso))
(/ t_5 (floor maxAniso))
(/ t_6 t_5)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = floorf(w) * dX_46_u;
float t_4 = fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2)));
float t_5 = sqrtf(t_4);
float t_6 = fabsf(((t_3 * t_2) - (t_0 * t_1)));
float tmp;
if ((t_4 / t_6) > floorf(maxAniso)) {
tmp = t_5 / floorf(maxAniso);
} else {
tmp = t_6 / t_5;
}
return log2f(tmp);
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(floor(w) * dX_46_u) t_4 = (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) : ((Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) != Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) ? Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)))) t_5 = sqrt(t_4) t_6 = abs(Float32(Float32(t_3 * t_2) - Float32(t_0 * t_1))) tmp = Float32(0.0) if (Float32(t_4 / t_6) > floor(maxAniso)) tmp = Float32(t_5 / floor(maxAniso)); else tmp = Float32(t_6 / t_5); end return log2(tmp) end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = floor(w) * dX_46_u; t_4 = max(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2))); t_5 = sqrt(t_4); t_6 = abs(((t_3 * t_2) - (t_0 * t_1))); tmp = single(0.0); if ((t_4 / t_6) > floor(maxAniso)) tmp = t_5 / floor(maxAniso); else tmp = t_6 / t_5; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := \mathsf{max}\left(t\_3 \cdot t\_3 + t\_0 \cdot t\_0, t\_1 \cdot t\_1 + t\_2 \cdot t\_2\right)\\
t_5 := \sqrt{t\_4}\\
t_6 := \left|t\_3 \cdot t\_2 - t\_0 \cdot t\_1\right|\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_4}{t\_6} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_5}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_6}{t\_5}\\
\end{array}
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 5 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* (floor w) dX.u))
(t_4 (fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2))))
(t_5 (sqrt t_4))
(t_6 (fabs (- (* t_3 t_2) (* t_0 t_1)))))
(log2
(if (> (/ t_4 t_6) (floor maxAniso))
(/ t_5 (floor maxAniso))
(/ t_6 t_5)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = floorf(w) * dX_46_u;
float t_4 = fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2)));
float t_5 = sqrtf(t_4);
float t_6 = fabsf(((t_3 * t_2) - (t_0 * t_1)));
float tmp;
if ((t_4 / t_6) > floorf(maxAniso)) {
tmp = t_5 / floorf(maxAniso);
} else {
tmp = t_6 / t_5;
}
return log2f(tmp);
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(floor(w) * dX_46_u) t_4 = (Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) : ((Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) != Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) ? Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)))) t_5 = sqrt(t_4) t_6 = abs(Float32(Float32(t_3 * t_2) - Float32(t_0 * t_1))) tmp = Float32(0.0) if (Float32(t_4 / t_6) > floor(maxAniso)) tmp = Float32(t_5 / floor(maxAniso)); else tmp = Float32(t_6 / t_5); end return log2(tmp) end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = floor(w) * dX_46_u; t_4 = max(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2))); t_5 = sqrt(t_4); t_6 = abs(((t_3 * t_2) - (t_0 * t_1))); tmp = single(0.0); if ((t_4 / t_6) > floor(maxAniso)) tmp = t_5 / floor(maxAniso); else tmp = t_6 / t_5; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := \mathsf{max}\left(t\_3 \cdot t\_3 + t\_0 \cdot t\_0, t\_1 \cdot t\_1 + t\_2 \cdot t\_2\right)\\
t_5 := \sqrt{t\_4}\\
t_6 := \left|t\_3 \cdot t\_2 - t\_0 \cdot t\_1\right|\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_4}{t\_6} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_5}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_6}{t\_5}\\
\end{array}
\end{array}
\end{array}
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fmax
(pow (hypot (* (floor w) dX.u) (* (floor h) dX.v)) 2.0)
(pow (hypot (* (floor h) dY.v) (* (floor w) dY.u)) 2.0)))
(t_1 (sqrt t_0))
(t_2
(fabs (* (* (floor w) (floor h)) (- (* dX.u dY.v) (* dX.v dY.u))))))
(log2
(if (> (/ t_0 t_2) (floor maxAniso))
(/ t_1 (floor maxAniso))
(/ t_2 t_1)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = fmaxf(powf(hypotf((floorf(w) * dX_46_u), (floorf(h) * dX_46_v)), 2.0f), powf(hypotf((floorf(h) * dY_46_v), (floorf(w) * dY_46_u)), 2.0f));
float t_1 = sqrtf(t_0);
float t_2 = fabsf(((floorf(w) * floorf(h)) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))));
float tmp;
if ((t_0 / t_2) > floorf(maxAniso)) {
tmp = t_1 / floorf(maxAniso);
} else {
tmp = t_2 / t_1;
}
return log2f(tmp);
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = ((hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0)) != (hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0))) ? (hypot(Float32(floor(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0)) : (((hypot(Float32(floor(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0))) ? (hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0)) : max((hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0)), (hypot(Float32(floor(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0)))) t_1 = sqrt(t_0) t_2 = abs(Float32(Float32(floor(w) * floor(h)) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u)))) tmp = Float32(0.0) if (Float32(t_0 / t_2) > floor(maxAniso)) tmp = Float32(t_1 / floor(maxAniso)); else tmp = Float32(t_2 / t_1); end return log2(tmp) end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = max((hypot((floor(w) * dX_46_u), (floor(h) * dX_46_v)) ^ single(2.0)), (hypot((floor(h) * dY_46_v), (floor(w) * dY_46_u)) ^ single(2.0))); t_1 = sqrt(t_0); t_2 = abs(((floor(w) * floor(h)) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)))); tmp = single(0.0); if ((t_0 / t_2) > floor(maxAniso)) tmp = t_1 / floor(maxAniso); else tmp = t_2 / t_1; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, \left\lfloor h\right\rfloor \cdot dX.v\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloor h\right\rfloor \cdot dY.v, \left\lfloor w\right\rfloor \cdot dY.u\right)\right)}^{2}\right)\\
t_1 := \sqrt{t\_0}\\
t_2 := \left|\left(\left\lfloor w\right\rfloor \cdot \left\lfloor h\right\rfloor \right) \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)\right|\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_0}{t\_2} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_1}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{t\_1}\\
\end{array}
\end{array}
\end{array}
Initial program 74.2%
Simplified74.2%
Applied egg-rr74.2%
Final simplification74.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (hypot (* (floor w) dX.u) (* (floor h) dX.v)) 2.0))
(t_1
(fabs (* (floor w) (* (floor h) (- (* dX.u dY.v) (* dX.v dY.u))))))
(t_2 (* (floor w) dY.u))
(t_3 (fmax t_0 (pow (hypot (* (floor h) dY.v) t_2) 2.0))))
(log2
(if (> (/ t_3 t_1) (floor maxAniso))
(/ (sqrt t_3) (floor maxAniso))
(/ t_1 (sqrt (fmax t_0 (pow t_2 2.0))))))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = powf(hypotf((floorf(w) * dX_46_u), (floorf(h) * dX_46_v)), 2.0f);
float t_1 = fabsf((floorf(w) * (floorf(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)))));
float t_2 = floorf(w) * dY_46_u;
float t_3 = fmaxf(t_0, powf(hypotf((floorf(h) * dY_46_v), t_2), 2.0f));
float tmp;
if ((t_3 / t_1) > floorf(maxAniso)) {
tmp = sqrtf(t_3) / floorf(maxAniso);
} else {
tmp = t_1 / sqrtf(fmaxf(t_0, powf(t_2, 2.0f)));
}
return log2f(tmp);
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0) t_1 = abs(Float32(floor(w) * Float32(floor(h) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))))) t_2 = Float32(floor(w) * dY_46_u) t_3 = (t_0 != t_0) ? (hypot(Float32(floor(h) * dY_46_v), t_2) ^ Float32(2.0)) : (((hypot(Float32(floor(h) * dY_46_v), t_2) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dY_46_v), t_2) ^ Float32(2.0))) ? t_0 : max(t_0, (hypot(Float32(floor(h) * dY_46_v), t_2) ^ Float32(2.0)))) tmp = Float32(0.0) if (Float32(t_3 / t_1) > floor(maxAniso)) tmp = Float32(sqrt(t_3) / floor(maxAniso)); else tmp = Float32(t_1 / sqrt(((t_0 != t_0) ? (t_2 ^ Float32(2.0)) : (((t_2 ^ Float32(2.0)) != (t_2 ^ Float32(2.0))) ? t_0 : max(t_0, (t_2 ^ Float32(2.0))))))); end return log2(tmp) end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = hypot((floor(w) * dX_46_u), (floor(h) * dX_46_v)) ^ single(2.0); t_1 = abs((floor(w) * (floor(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))))); t_2 = floor(w) * dY_46_u; t_3 = max(t_0, (hypot((floor(h) * dY_46_v), t_2) ^ single(2.0))); tmp = single(0.0); if ((t_3 / t_1) > floor(maxAniso)) tmp = sqrt(t_3) / floor(maxAniso); else tmp = t_1 / sqrt(max(t_0, (t_2 ^ single(2.0)))); end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, \left\lfloor h\right\rfloor \cdot dX.v\right)\right)}^{2}\\
t_1 := \left|\left\lfloor w\right\rfloor \cdot \left(\left\lfloor h\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)\right)\right|\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := \mathsf{max}\left(t\_0, {\left(\mathsf{hypot}\left(\left\lfloor h\right\rfloor \cdot dY.v, t\_2\right)\right)}^{2}\right)\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_3}{t\_1} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{t\_3}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{\sqrt{\mathsf{max}\left(t\_0, {t\_2}^{2}\right)}}\\
\end{array}
\end{array}
\end{array}
Initial program 74.2%
Simplified74.2%
Applied egg-rr74.2%
Taylor expanded in dY.v around 0 74.0%
*-commutative74.0%
unpow274.0%
unpow274.0%
swap-sqr74.0%
unpow274.0%
Simplified74.0%
*-un-lft-identity74.0%
Applied egg-rr74.0%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fabs (* (floor w) (* (floor h) (- (* dX.u dY.v) (* dX.v dY.u))))))
(t_1 (* (floor w) dY.u))
(t_2
(fmax
(pow (hypot (* (floor w) dX.u) (* (floor h) dX.v)) 2.0)
(pow (hypot (* (floor h) dY.v) t_1) 2.0))))
(log2
(if (> (/ t_2 t_0) (floor maxAniso))
(/ (sqrt t_2) (floor maxAniso))
(/ t_0 (sqrt (fmax (pow (* (floor w) (- dX.u)) 2.0) (pow t_1 2.0))))))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = fabsf((floorf(w) * (floorf(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)))));
float t_1 = floorf(w) * dY_46_u;
float t_2 = fmaxf(powf(hypotf((floorf(w) * dX_46_u), (floorf(h) * dX_46_v)), 2.0f), powf(hypotf((floorf(h) * dY_46_v), t_1), 2.0f));
float tmp;
if ((t_2 / t_0) > floorf(maxAniso)) {
tmp = sqrtf(t_2) / floorf(maxAniso);
} else {
tmp = t_0 / sqrtf(fmaxf(powf((floorf(w) * -dX_46_u), 2.0f), powf(t_1, 2.0f)));
}
return log2f(tmp);
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs(Float32(floor(w) * Float32(floor(h) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))))) t_1 = Float32(floor(w) * dY_46_u) t_2 = ((hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0)) != (hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0))) ? (hypot(Float32(floor(h) * dY_46_v), t_1) ^ Float32(2.0)) : (((hypot(Float32(floor(h) * dY_46_v), t_1) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dY_46_v), t_1) ^ Float32(2.0))) ? (hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0)) : max((hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0)), (hypot(Float32(floor(h) * dY_46_v), t_1) ^ Float32(2.0)))) tmp = Float32(0.0) if (Float32(t_2 / t_0) > floor(maxAniso)) tmp = Float32(sqrt(t_2) / floor(maxAniso)); else tmp = Float32(t_0 / sqrt((((Float32(floor(w) * Float32(-dX_46_u)) ^ Float32(2.0)) != (Float32(floor(w) * Float32(-dX_46_u)) ^ Float32(2.0))) ? (t_1 ^ Float32(2.0)) : (((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? (Float32(floor(w) * Float32(-dX_46_u)) ^ Float32(2.0)) : max((Float32(floor(w) * Float32(-dX_46_u)) ^ Float32(2.0)), (t_1 ^ Float32(2.0))))))); end return log2(tmp) end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs((floor(w) * (floor(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))))); t_1 = floor(w) * dY_46_u; t_2 = max((hypot((floor(w) * dX_46_u), (floor(h) * dX_46_v)) ^ single(2.0)), (hypot((floor(h) * dY_46_v), t_1) ^ single(2.0))); tmp = single(0.0); if ((t_2 / t_0) > floor(maxAniso)) tmp = sqrt(t_2) / floor(maxAniso); else tmp = t_0 / sqrt(max(((floor(w) * -dX_46_u) ^ single(2.0)), (t_1 ^ single(2.0)))); end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left|\left\lfloor w\right\rfloor \cdot \left(\left\lfloor h\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)\right)\right|\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, \left\lfloor h\right\rfloor \cdot dX.v\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloor h\right\rfloor \cdot dY.v, t\_1\right)\right)}^{2}\right)\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_2}{t\_0} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{t\_2}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_0}{\sqrt{\mathsf{max}\left({\left(\left\lfloor w\right\rfloor \cdot \left(-dX.u\right)\right)}^{2}, {t\_1}^{2}\right)}}\\
\end{array}
\end{array}
\end{array}
Initial program 74.2%
Simplified74.2%
Applied egg-rr74.2%
Taylor expanded in dY.v around 0 74.0%
*-commutative74.0%
unpow274.0%
unpow274.0%
swap-sqr74.0%
unpow274.0%
Simplified74.0%
*-un-lft-identity74.0%
Applied egg-rr74.0%
Taylor expanded in dX.u around -inf 73.3%
mul-1-neg73.3%
distribute-rgt-neg-in73.3%
Simplified73.3%
Final simplification73.3%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fabs (* (floor w) (* (floor h) (- (* dX.u dY.v) (* dX.v dY.u))))))
(t_1 (* (floor w) dX.u))
(t_2 (* (floor w) dY.u))
(t_3 (pow (hypot (* (floor h) dY.v) t_2) 2.0))
(t_4 (* (floor h) dX.v))
(t_5 (pow (hypot t_1 t_4) 2.0))
(t_6 (/ t_0 (sqrt (fmax t_5 (pow t_2 2.0)))))
(t_7 (/ (sqrt (fmax t_5 t_3)) (floor maxAniso))))
(if (or (<= dX.u -100.0) (not (<= dX.u 400000.0)))
(log2 (if (> (/ (fmax (pow t_1 2.0) t_3) t_0) (floor maxAniso)) t_7 t_6))
(log2
(if (> (/ (fmax (pow t_4 2.0) t_3) t_0) (floor maxAniso)) t_7 t_6)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = fabsf((floorf(w) * (floorf(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)))));
float t_1 = floorf(w) * dX_46_u;
float t_2 = floorf(w) * dY_46_u;
float t_3 = powf(hypotf((floorf(h) * dY_46_v), t_2), 2.0f);
float t_4 = floorf(h) * dX_46_v;
float t_5 = powf(hypotf(t_1, t_4), 2.0f);
float t_6 = t_0 / sqrtf(fmaxf(t_5, powf(t_2, 2.0f)));
float t_7 = sqrtf(fmaxf(t_5, t_3)) / floorf(maxAniso);
float tmp_1;
if ((dX_46_u <= -100.0f) || !(dX_46_u <= 400000.0f)) {
float tmp_2;
if ((fmaxf(powf(t_1, 2.0f), t_3) / t_0) > floorf(maxAniso)) {
tmp_2 = t_7;
} else {
tmp_2 = t_6;
}
tmp_1 = log2f(tmp_2);
} else {
float tmp_3;
if ((fmaxf(powf(t_4, 2.0f), t_3) / t_0) > floorf(maxAniso)) {
tmp_3 = t_7;
} else {
tmp_3 = t_6;
}
tmp_1 = log2f(tmp_3);
}
return tmp_1;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs(Float32(floor(w) * Float32(floor(h) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))))) t_1 = Float32(floor(w) * dX_46_u) t_2 = Float32(floor(w) * dY_46_u) t_3 = hypot(Float32(floor(h) * dY_46_v), t_2) ^ Float32(2.0) t_4 = Float32(floor(h) * dX_46_v) t_5 = hypot(t_1, t_4) ^ Float32(2.0) t_6 = Float32(t_0 / sqrt(((t_5 != t_5) ? (t_2 ^ Float32(2.0)) : (((t_2 ^ Float32(2.0)) != (t_2 ^ Float32(2.0))) ? t_5 : max(t_5, (t_2 ^ Float32(2.0))))))) t_7 = Float32(sqrt(((t_5 != t_5) ? t_3 : ((t_3 != t_3) ? t_5 : max(t_5, t_3)))) / floor(maxAniso)) tmp_1 = Float32(0.0) if ((dX_46_u <= Float32(-100.0)) || !(dX_46_u <= Float32(400000.0))) tmp_2 = Float32(0.0) if (Float32((((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? t_3 : ((t_3 != t_3) ? (t_1 ^ Float32(2.0)) : max((t_1 ^ Float32(2.0)), t_3))) / t_0) > floor(maxAniso)) tmp_2 = t_7; else tmp_2 = t_6; end tmp_1 = log2(tmp_2); else tmp_3 = Float32(0.0) if (Float32((((t_4 ^ Float32(2.0)) != (t_4 ^ Float32(2.0))) ? t_3 : ((t_3 != t_3) ? (t_4 ^ Float32(2.0)) : max((t_4 ^ Float32(2.0)), t_3))) / t_0) > floor(maxAniso)) tmp_3 = t_7; else tmp_3 = t_6; end tmp_1 = log2(tmp_3); end return tmp_1 end
function tmp_5 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = abs((floor(w) * (floor(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))))); t_1 = floor(w) * dX_46_u; t_2 = floor(w) * dY_46_u; t_3 = hypot((floor(h) * dY_46_v), t_2) ^ single(2.0); t_4 = floor(h) * dX_46_v; t_5 = hypot(t_1, t_4) ^ single(2.0); t_6 = t_0 / sqrt(max(t_5, (t_2 ^ single(2.0)))); t_7 = sqrt(max(t_5, t_3)) / floor(maxAniso); tmp_2 = single(0.0); if ((dX_46_u <= single(-100.0)) || ~((dX_46_u <= single(400000.0)))) tmp_3 = single(0.0); if ((max((t_1 ^ single(2.0)), t_3) / t_0) > floor(maxAniso)) tmp_3 = t_7; else tmp_3 = t_6; end tmp_2 = log2(tmp_3); else tmp_4 = single(0.0); if ((max((t_4 ^ single(2.0)), t_3) / t_0) > floor(maxAniso)) tmp_4 = t_7; else tmp_4 = t_6; end tmp_2 = log2(tmp_4); end tmp_5 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left|\left\lfloor w\right\rfloor \cdot \left(\left\lfloor h\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)\right)\right|\\
t_1 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := {\left(\mathsf{hypot}\left(\left\lfloor h\right\rfloor \cdot dY.v, t\_2\right)\right)}^{2}\\
t_4 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_5 := {\left(\mathsf{hypot}\left(t\_1, t\_4\right)\right)}^{2}\\
t_6 := \frac{t\_0}{\sqrt{\mathsf{max}\left(t\_5, {t\_2}^{2}\right)}}\\
t_7 := \frac{\sqrt{\mathsf{max}\left(t\_5, t\_3\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{if}\;dX.u \leq -100 \lor \neg \left(dX.u \leq 400000\right):\\
\;\;\;\;\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left({t\_1}^{2}, t\_3\right)}{t\_0} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;t\_7\\
\mathbf{else}:\\
\;\;\;\;t\_6\\
\end{array}\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left({t\_4}^{2}, t\_3\right)}{t\_0} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;t\_7\\
\mathbf{else}:\\
\;\;\;\;t\_6\\
\end{array}\\
\end{array}
\end{array}
if dX.u < -100 or 4e5 < dX.u Initial program 62.2%
Simplified62.2%
Applied egg-rr62.2%
Taylor expanded in dY.v around 0 61.8%
*-commutative61.8%
unpow261.8%
unpow261.8%
swap-sqr61.8%
unpow261.8%
Simplified61.8%
*-un-lft-identity61.8%
Applied egg-rr61.8%
Taylor expanded in dX.u around inf 61.1%
*-commutative61.1%
unpow261.1%
unpow261.1%
swap-sqr61.1%
unpow261.1%
*-commutative61.1%
Simplified61.1%
if -100 < dX.u < 4e5Initial program 83.5%
Simplified83.5%
Applied egg-rr83.5%
Taylor expanded in dY.v around 0 83.5%
*-commutative83.5%
unpow283.5%
unpow283.5%
swap-sqr83.5%
unpow283.5%
Simplified83.5%
*-un-lft-identity83.5%
Applied egg-rr83.5%
Taylor expanded in dX.u around 0 82.0%
unpow282.0%
unpow282.0%
swap-sqr82.0%
unpow282.0%
Simplified82.0%
Final simplification72.8%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (pow (hypot (* (floor h) dY.v) t_0) 2.0))
(t_2
(fabs (* (floor w) (* (floor h) (- (* dX.u dY.v) (* dX.v dY.u))))))
(t_3 (* (floor w) dX.u))
(t_4 (pow (hypot t_3 (* (floor h) dX.v)) 2.0)))
(log2
(if (> (/ (fmax (pow t_3 2.0) t_1) t_2) (floor maxAniso))
(/ (sqrt (fmax t_4 t_1)) (floor maxAniso))
(/ t_2 (sqrt (fmax t_4 (pow t_0 2.0))))))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(w) * dY_46_u;
float t_1 = powf(hypotf((floorf(h) * dY_46_v), t_0), 2.0f);
float t_2 = fabsf((floorf(w) * (floorf(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u)))));
float t_3 = floorf(w) * dX_46_u;
float t_4 = powf(hypotf(t_3, (floorf(h) * dX_46_v)), 2.0f);
float tmp;
if ((fmaxf(powf(t_3, 2.0f), t_1) / t_2) > floorf(maxAniso)) {
tmp = sqrtf(fmaxf(t_4, t_1)) / floorf(maxAniso);
} else {
tmp = t_2 / sqrtf(fmaxf(t_4, powf(t_0, 2.0f)));
}
return log2f(tmp);
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(w) * dY_46_u) t_1 = hypot(Float32(floor(h) * dY_46_v), t_0) ^ Float32(2.0) t_2 = abs(Float32(floor(w) * Float32(floor(h) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))))) t_3 = Float32(floor(w) * dX_46_u) t_4 = hypot(t_3, Float32(floor(h) * dX_46_v)) ^ Float32(2.0) tmp = Float32(0.0) if (Float32((((t_3 ^ Float32(2.0)) != (t_3 ^ Float32(2.0))) ? t_1 : ((t_1 != t_1) ? (t_3 ^ Float32(2.0)) : max((t_3 ^ Float32(2.0)), t_1))) / t_2) > floor(maxAniso)) tmp = Float32(sqrt(((t_4 != t_4) ? t_1 : ((t_1 != t_1) ? t_4 : max(t_4, t_1)))) / floor(maxAniso)); else tmp = Float32(t_2 / sqrt(((t_4 != t_4) ? (t_0 ^ Float32(2.0)) : (((t_0 ^ Float32(2.0)) != (t_0 ^ Float32(2.0))) ? t_4 : max(t_4, (t_0 ^ Float32(2.0))))))); end return log2(tmp) end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(w) * dY_46_u; t_1 = hypot((floor(h) * dY_46_v), t_0) ^ single(2.0); t_2 = abs((floor(w) * (floor(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))))); t_3 = floor(w) * dX_46_u; t_4 = hypot(t_3, (floor(h) * dX_46_v)) ^ single(2.0); tmp = single(0.0); if ((max((t_3 ^ single(2.0)), t_1) / t_2) > floor(maxAniso)) tmp = sqrt(max(t_4, t_1)) / floor(maxAniso); else tmp = t_2 / sqrt(max(t_4, (t_0 ^ single(2.0)))); end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_1 := {\left(\mathsf{hypot}\left(\left\lfloor h\right\rfloor \cdot dY.v, t\_0\right)\right)}^{2}\\
t_2 := \left|\left\lfloor w\right\rfloor \cdot \left(\left\lfloor h\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)\right)\right|\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := {\left(\mathsf{hypot}\left(t\_3, \left\lfloor h\right\rfloor \cdot dX.v\right)\right)}^{2}\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left({t\_3}^{2}, t\_1\right)}{t\_2} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{\mathsf{max}\left(t\_4, t\_1\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{\sqrt{\mathsf{max}\left(t\_4, {t\_0}^{2}\right)}}\\
\end{array}
\end{array}
\end{array}
Initial program 74.2%
Simplified74.2%
Applied egg-rr74.2%
Taylor expanded in dY.v around 0 74.0%
*-commutative74.0%
unpow274.0%
unpow274.0%
swap-sqr74.0%
unpow274.0%
Simplified74.0%
*-un-lft-identity74.0%
Applied egg-rr74.0%
Taylor expanded in dX.u around inf 64.3%
*-commutative64.3%
unpow264.3%
unpow264.3%
swap-sqr64.3%
unpow264.3%
*-commutative64.3%
Simplified64.3%
Final simplification64.3%
herbie shell --seed 2024180
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:name "Anisotropic x16 LOD (LOD)"
:precision binary32
:pre (and (and (and (and (and (and (and (<= 1.0 w) (<= w 16384.0)) (and (<= 1.0 h) (<= h 16384.0))) (and (<= 1e-20 (fabs dX.u)) (<= (fabs dX.u) 1e+20))) (and (<= 1e-20 (fabs dX.v)) (<= (fabs dX.v) 1e+20))) (and (<= 1e-20 (fabs dY.u)) (<= (fabs dY.u) 1e+20))) (and (<= 1e-20 (fabs dY.v)) (<= (fabs dY.v) 1e+20))) (== maxAniso 16.0))
(log2 (if (> (/ (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))) (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u))))) (floor maxAniso)) (/ (sqrt (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))))) (floor maxAniso)) (/ (fabs (- (* (* (floor w) dX.u) (* (floor h) dY.v)) (* (* (floor h) dX.v) (* (floor w) dY.u)))) (sqrt (fmax (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v)))))))))