
(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\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := \left\lfloorw\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\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_5}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_6}{t\_5}\\
\end{array}
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 6 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\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := \left\lfloorw\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\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_5}{\left\lfloormaxAniso\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\lfloorw\right\rfloor \cdot dX.u, \left\lfloorh\right\rfloor \cdot dX.v\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dY.v, \left\lfloorw\right\rfloor \cdot dY.u\right)\right)}^{2}\right)\\
t_1 := \sqrt{t\_0}\\
t_2 := \left|\left(\left\lfloorw\right\rfloor \cdot \left\lfloorh\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\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_1}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{t\_1}\\
\end{array}
\end{array}
\end{array}
Initial program 75.4%
Simplified75.3%
Applied egg-rr75.4%
Final simplification75.4%
(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)))
(log2
(if (>
(/ t_0 (fabs (* (* (floor w) (floor h)) (* dX.v dY.u))))
(floor maxAniso))
(/ t_1 (floor maxAniso))
(/
(fabs (* (floor w) (* (floor h) (- (* dX.u dY.v) (* dX.v dY.u)))))
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 tmp;
if ((t_0 / fabsf(((floorf(w) * floorf(h)) * (dX_46_v * dY_46_u)))) > floorf(maxAniso)) {
tmp = t_1 / floorf(maxAniso);
} else {
tmp = fabsf((floorf(w) * (floorf(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))))) / 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) tmp = Float32(0.0) if (Float32(t_0 / abs(Float32(Float32(floor(w) * floor(h)) * Float32(dX_46_v * dY_46_u)))) > floor(maxAniso)) tmp = Float32(t_1 / floor(maxAniso)); else tmp = Float32(abs(Float32(floor(w) * Float32(floor(h) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))))) / 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); tmp = single(0.0); if ((t_0 / abs(((floor(w) * floor(h)) * (dX_46_v * dY_46_u)))) > floor(maxAniso)) tmp = t_1 / floor(maxAniso); else tmp = abs((floor(w) * (floor(h) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))))) / t_1; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dX.u, \left\lfloorh\right\rfloor \cdot dX.v\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dY.v, \left\lfloorw\right\rfloor \cdot dY.u\right)\right)}^{2}\right)\\
t_1 := \sqrt{t\_0}\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_0}{\left|\left(\left\lfloorw\right\rfloor \cdot \left\lfloorh\right\rfloor\right) \cdot \left(dX.v \cdot dY.u\right)\right|} > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_1}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|\left\lfloorw\right\rfloor \cdot \left(\left\lfloorh\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)\right)\right|}{t\_1}\\
\end{array}
\end{array}
\end{array}
Initial program 75.4%
Taylor expanded in dX.u around 0 74.7%
associate-*r*74.7%
neg-mul-174.7%
*-commutative74.7%
associate-*r*74.7%
*-commutative74.7%
associate-*l*74.7%
distribute-lft-neg-in74.7%
*-commutative74.7%
distribute-lft-neg-in74.7%
*-commutative74.7%
associate-*r*74.7%
distribute-lft-neg-in74.7%
distribute-rgt-neg-in74.7%
Simplified74.7%
Applied egg-rr74.7%
Simplified74.7%
Final simplification74.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fmax
(pow (hypot (* (floor h) dX.v) (* (floor w) dX.u)) 2.0)
(pow (hypot (* (floor h) dY.v) (* (floor w) dY.u)) 2.0)))
(t_1 (sqrt t_0)))
(log2
(if (>
(/ t_0 (fabs (* (floor w) (* (floor h) (* dX.v dY.u)))))
(floor maxAniso))
(/ t_1 (floor maxAniso))
(* (floor h) (/ (* (floor w) (- (* dX.u dY.v) (* dX.v dY.u))) 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(h) * dX_46_v), (floorf(w) * dX_46_u)), 2.0f), powf(hypotf((floorf(h) * dY_46_v), (floorf(w) * dY_46_u)), 2.0f));
float t_1 = sqrtf(t_0);
float tmp;
if ((t_0 / fabsf((floorf(w) * (floorf(h) * (dX_46_v * dY_46_u))))) > floorf(maxAniso)) {
tmp = t_1 / floorf(maxAniso);
} else {
tmp = floorf(h) * ((floorf(w) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / 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(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_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(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0))) ? (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) : max((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)), (hypot(Float32(floor(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0)))) t_1 = sqrt(t_0) tmp = Float32(0.0) if (Float32(t_0 / abs(Float32(floor(w) * Float32(floor(h) * Float32(dX_46_v * dY_46_u))))) > floor(maxAniso)) tmp = Float32(t_1 / floor(maxAniso)); else tmp = Float32(floor(h) * Float32(Float32(floor(w) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))) / 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(h) * dX_46_v), (floor(w) * dX_46_u)) ^ single(2.0)), (hypot((floor(h) * dY_46_v), (floor(w) * dY_46_u)) ^ single(2.0))); t_1 = sqrt(t_0); tmp = single(0.0); if ((t_0 / abs((floor(w) * (floor(h) * (dX_46_v * dY_46_u))))) > floor(maxAniso)) tmp = t_1 / floor(maxAniso); else tmp = floor(h) * ((floor(w) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / t_1); end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dX.v, \left\lfloorw\right\rfloor \cdot dX.u\right)\right)}^{2}, {\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dY.v, \left\lfloorw\right\rfloor \cdot dY.u\right)\right)}^{2}\right)\\
t_1 := \sqrt{t\_0}\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_0}{\left|\left\lfloorw\right\rfloor \cdot \left(\left\lfloorh\right\rfloor \cdot \left(dX.v \cdot dY.u\right)\right)\right|} > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_1}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\left\lfloorh\right\rfloor \cdot \frac{\left\lfloorw\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)}{t\_1}\\
\end{array}
\end{array}
\end{array}
Initial program 75.4%
Taylor expanded in dX.u around 0 74.7%
associate-*r*74.7%
neg-mul-174.7%
*-commutative74.7%
associate-*r*74.7%
*-commutative74.7%
associate-*l*74.7%
distribute-lft-neg-in74.7%
*-commutative74.7%
distribute-lft-neg-in74.7%
*-commutative74.7%
associate-*r*74.7%
distribute-lft-neg-in74.7%
distribute-rgt-neg-in74.7%
Simplified74.7%
*-un-lft-identity74.7%
associate-*l*74.7%
associate-*l*74.7%
Applied egg-rr74.7%
Simplified73.9%
Applied egg-rr73.9%
*-lft-identity73.9%
Simplified73.9%
Final simplification73.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (hypot (* (floor h) dY.v) (* (floor w) dY.u)) 2.0))
(t_1
(fmax (pow (hypot (* (floor h) dX.v) (* (floor w) dX.u)) 2.0) t_0)))
(log2
(if (>
(/ t_1 (fabs (* (floor w) (* (floor h) (* dX.v dY.u)))))
(floor maxAniso))
(/ (sqrt t_1) (floor maxAniso))
(*
(floor h)
(/
(* (floor w) (- (* dX.u dY.v) (* dX.v dY.u)))
(sqrt (fmax (* (pow dX.u 2.0) (pow (floor w) 2.0)) t_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(h) * dY_46_v), (floorf(w) * dY_46_u)), 2.0f);
float t_1 = fmaxf(powf(hypotf((floorf(h) * dX_46_v), (floorf(w) * dX_46_u)), 2.0f), t_0);
float tmp;
if ((t_1 / fabsf((floorf(w) * (floorf(h) * (dX_46_v * dY_46_u))))) > floorf(maxAniso)) {
tmp = sqrtf(t_1) / floorf(maxAniso);
} else {
tmp = floorf(h) * ((floorf(w) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / sqrtf(fmaxf((powf(dX_46_u, 2.0f) * powf(floorf(w), 2.0f)), t_0)));
}
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(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0) t_1 = ((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0))) ? t_0 : ((t_0 != t_0) ? (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) : max((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)), t_0)) tmp = Float32(0.0) if (Float32(t_1 / abs(Float32(floor(w) * Float32(floor(h) * Float32(dX_46_v * dY_46_u))))) > floor(maxAniso)) tmp = Float32(sqrt(t_1) / floor(maxAniso)); else tmp = Float32(floor(h) * Float32(Float32(floor(w) * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))) / sqrt(((Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0))) != Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0)))) ? t_0 : ((t_0 != t_0) ? Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0))) : max(Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0))), t_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(h) * dY_46_v), (floor(w) * dY_46_u)) ^ single(2.0); t_1 = max((hypot((floor(h) * dX_46_v), (floor(w) * dX_46_u)) ^ single(2.0)), t_0); tmp = single(0.0); if ((t_1 / abs((floor(w) * (floor(h) * (dX_46_v * dY_46_u))))) > floor(maxAniso)) tmp = sqrt(t_1) / floor(maxAniso); else tmp = floor(h) * ((floor(w) * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / sqrt(max(((dX_46_u ^ single(2.0)) * (floor(w) ^ single(2.0))), t_0))); end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dY.v, \left\lfloorw\right\rfloor \cdot dY.u\right)\right)}^{2}\\
t_1 := \mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dX.v, \left\lfloorw\right\rfloor \cdot dX.u\right)\right)}^{2}, t\_0\right)\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_1}{\left|\left\lfloorw\right\rfloor \cdot \left(\left\lfloorh\right\rfloor \cdot \left(dX.v \cdot dY.u\right)\right)\right|} > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{\sqrt{t\_1}}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\left\lfloorh\right\rfloor \cdot \frac{\left\lfloorw\right\rfloor \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)}{\sqrt{\mathsf{max}\left({dX.u}^{2} \cdot {\left(\left\lfloorw\right\rfloor\right)}^{2}, t\_0\right)}}\\
\end{array}
\end{array}
\end{array}
Initial program 75.4%
Taylor expanded in dX.u around 0 74.7%
associate-*r*74.7%
neg-mul-174.7%
*-commutative74.7%
associate-*r*74.7%
*-commutative74.7%
associate-*l*74.7%
distribute-lft-neg-in74.7%
*-commutative74.7%
distribute-lft-neg-in74.7%
*-commutative74.7%
associate-*r*74.7%
distribute-lft-neg-in74.7%
distribute-rgt-neg-in74.7%
Simplified74.7%
*-un-lft-identity74.7%
associate-*l*74.7%
associate-*l*74.7%
Applied egg-rr74.7%
Simplified73.9%
Applied egg-rr73.9%
*-lft-identity73.9%
Simplified73.9%
Taylor expanded in dX.v around 0 73.6%
Final simplification73.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (hypot (* (floor h) dY.v) (* (floor w) dY.u)) 2.0))
(t_1
(sqrt
(fmax (pow (hypot (* (floor h) dX.v) (* (floor w) dX.u)) 2.0) t_0)))
(t_2 (* (floor w) (floor h))))
(log2
(if (>
(/
-1.0
(*
t_2
(*
dX.v
(/ dY.u (fmax (* (pow dX.v 2.0) (pow (floor h) 2.0)) t_0)))))
(floor maxAniso))
(/ t_1 (floor maxAniso))
(/ (* t_2 (- (* dX.u dY.v) (* dX.v dY.u))) 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 = powf(hypotf((floorf(h) * dY_46_v), (floorf(w) * dY_46_u)), 2.0f);
float t_1 = sqrtf(fmaxf(powf(hypotf((floorf(h) * dX_46_v), (floorf(w) * dX_46_u)), 2.0f), t_0));
float t_2 = floorf(w) * floorf(h);
float tmp;
if ((-1.0f / (t_2 * (dX_46_v * (dY_46_u / fmaxf((powf(dX_46_v, 2.0f) * powf(floorf(h), 2.0f)), t_0))))) > floorf(maxAniso)) {
tmp = t_1 / floorf(maxAniso);
} else {
tmp = (t_2 * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / 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(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0) t_1 = sqrt((((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0))) ? t_0 : ((t_0 != t_0) ? (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) : max((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)), t_0)))) t_2 = Float32(floor(w) * floor(h)) tmp = Float32(0.0) if (Float32(Float32(-1.0) / Float32(t_2 * Float32(dX_46_v * Float32(dY_46_u / ((Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))) != Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0)))) ? t_0 : ((t_0 != t_0) ? Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))) : max(Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))), t_0))))))) > floor(maxAniso)) tmp = Float32(t_1 / floor(maxAniso)); else tmp = Float32(Float32(t_2 * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))) / 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 = hypot((floor(h) * dY_46_v), (floor(w) * dY_46_u)) ^ single(2.0); t_1 = sqrt(max((hypot((floor(h) * dX_46_v), (floor(w) * dX_46_u)) ^ single(2.0)), t_0)); t_2 = floor(w) * floor(h); tmp = single(0.0); if ((single(-1.0) / (t_2 * (dX_46_v * (dY_46_u / max(((dX_46_v ^ single(2.0)) * (floor(h) ^ single(2.0))), t_0))))) > floor(maxAniso)) tmp = t_1 / floor(maxAniso); else tmp = (t_2 * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / t_1; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dY.v, \left\lfloorw\right\rfloor \cdot dY.u\right)\right)}^{2}\\
t_1 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dX.v, \left\lfloorw\right\rfloor \cdot dX.u\right)\right)}^{2}, t\_0\right)}\\
t_2 := \left\lfloorw\right\rfloor \cdot \left\lfloorh\right\rfloor\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{-1}{t\_2 \cdot \left(dX.v \cdot \frac{dY.u}{\mathsf{max}\left({dX.v}^{2} \cdot {\left(\left\lfloorh\right\rfloor\right)}^{2}, t\_0\right)}\right)} > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_1}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2 \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)}{t\_1}\\
\end{array}
\end{array}
\end{array}
Initial program 75.4%
Applied egg-rr75.4%
Simplified37.2%
clear-num37.2%
inv-pow37.2%
Applied egg-rr37.2%
unpow-137.2%
associate-/l*37.2%
*-commutative37.2%
*-commutative37.2%
Simplified37.2%
Taylor expanded in dX.u around 0 42.3%
Simplified42.3%
Taylor expanded in dX.v around inf 41.7%
Final simplification41.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (hypot (* (floor h) dY.v) (* (floor w) dY.u)) 2.0))
(t_1
(sqrt
(fmax (pow (hypot (* (floor h) dX.v) (* (floor w) dX.u)) 2.0) t_0)))
(t_2 (* (floor w) (floor h))))
(log2
(if (>
(/
-1.0
(*
t_2
(*
dX.v
(/ dY.u (fmax (* (pow dX.u 2.0) (pow (floor w) 2.0)) t_0)))))
(floor maxAniso))
(/ t_1 (floor maxAniso))
(/ (* t_2 (- (* dX.u dY.v) (* dX.v dY.u))) 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 = powf(hypotf((floorf(h) * dY_46_v), (floorf(w) * dY_46_u)), 2.0f);
float t_1 = sqrtf(fmaxf(powf(hypotf((floorf(h) * dX_46_v), (floorf(w) * dX_46_u)), 2.0f), t_0));
float t_2 = floorf(w) * floorf(h);
float tmp;
if ((-1.0f / (t_2 * (dX_46_v * (dY_46_u / fmaxf((powf(dX_46_u, 2.0f) * powf(floorf(w), 2.0f)), t_0))))) > floorf(maxAniso)) {
tmp = t_1 / floorf(maxAniso);
} else {
tmp = (t_2 * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / 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(h) * dY_46_v), Float32(floor(w) * dY_46_u)) ^ Float32(2.0) t_1 = sqrt((((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) != (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0))) ? t_0 : ((t_0 != t_0) ? (hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)) : max((hypot(Float32(floor(h) * dX_46_v), Float32(floor(w) * dX_46_u)) ^ Float32(2.0)), t_0)))) t_2 = Float32(floor(w) * floor(h)) tmp = Float32(0.0) if (Float32(Float32(-1.0) / Float32(t_2 * Float32(dX_46_v * Float32(dY_46_u / ((Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0))) != Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0)))) ? t_0 : ((t_0 != t_0) ? Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0))) : max(Float32((dX_46_u ^ Float32(2.0)) * (floor(w) ^ Float32(2.0))), t_0))))))) > floor(maxAniso)) tmp = Float32(t_1 / floor(maxAniso)); else tmp = Float32(Float32(t_2 * Float32(Float32(dX_46_u * dY_46_v) - Float32(dX_46_v * dY_46_u))) / 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 = hypot((floor(h) * dY_46_v), (floor(w) * dY_46_u)) ^ single(2.0); t_1 = sqrt(max((hypot((floor(h) * dX_46_v), (floor(w) * dX_46_u)) ^ single(2.0)), t_0)); t_2 = floor(w) * floor(h); tmp = single(0.0); if ((single(-1.0) / (t_2 * (dX_46_v * (dY_46_u / max(((dX_46_u ^ single(2.0)) * (floor(w) ^ single(2.0))), t_0))))) > floor(maxAniso)) tmp = t_1 / floor(maxAniso); else tmp = (t_2 * ((dX_46_u * dY_46_v) - (dX_46_v * dY_46_u))) / t_1; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dY.v, \left\lfloorw\right\rfloor \cdot dY.u\right)\right)}^{2}\\
t_1 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloorh\right\rfloor \cdot dX.v, \left\lfloorw\right\rfloor \cdot dX.u\right)\right)}^{2}, t\_0\right)}\\
t_2 := \left\lfloorw\right\rfloor \cdot \left\lfloorh\right\rfloor\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{-1}{t\_2 \cdot \left(dX.v \cdot \frac{dY.u}{\mathsf{max}\left({dX.u}^{2} \cdot {\left(\left\lfloorw\right\rfloor\right)}^{2}, t\_0\right)}\right)} > \left\lfloormaxAniso\right\rfloor:\\
\;\;\;\;\frac{t\_1}{\left\lfloormaxAniso\right\rfloor}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2 \cdot \left(dX.u \cdot dY.v - dX.v \cdot dY.u\right)}{t\_1}\\
\end{array}
\end{array}
\end{array}
Initial program 75.4%
Applied egg-rr75.4%
Simplified37.2%
clear-num37.2%
inv-pow37.2%
Applied egg-rr37.2%
unpow-137.2%
associate-/l*37.2%
*-commutative37.2%
*-commutative37.2%
Simplified37.2%
Taylor expanded in dX.u around 0 42.3%
Simplified42.3%
Taylor expanded in dX.v around 0 35.9%
Final simplification35.9%
herbie shell --seed 2024151
(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)))))))))