
(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 = fmax(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}
Herbie found 7 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 = fmax(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 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (+ (* t_1 t_1) (* t_2 t_2)))
(t_4 (* (floor w) dX.u))
(t_5 (fmax (+ (* t_4 t_4) (* t_0 t_0)) t_3))
(t_6 (fabs (- (* t_4 t_2) (* t_0 t_1)))))
(log2
(if (> (/ t_5 t_6) (floor maxAniso))
(/
(sqrt
(fmax (fma (* (* dX.u dX.u) (floor w)) (floor w) (pow t_0 2.0)) t_3))
(floor maxAniso))
(/ t_6 (sqrt 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 = (t_1 * t_1) + (t_2 * t_2);
float t_4 = floorf(w) * dX_46_u;
float t_5 = fmaxf(((t_4 * t_4) + (t_0 * t_0)), t_3);
float t_6 = fabsf(((t_4 * t_2) - (t_0 * t_1)));
float tmp;
if ((t_5 / t_6) > floorf(maxAniso)) {
tmp = sqrtf(fmaxf(fmaf(((dX_46_u * dX_46_u) * floorf(w)), floorf(w), powf(t_0, 2.0f)), t_3)) / floorf(maxAniso);
} else {
tmp = t_6 / sqrtf(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(Float32(t_1 * t_1) + Float32(t_2 * t_2)) t_4 = Float32(floor(w) * dX_46_u) t_5 = fmax(Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)), t_3) t_6 = abs(Float32(Float32(t_4 * t_2) - Float32(t_0 * t_1))) tmp = Float32(0.0) if (Float32(t_5 / t_6) > floor(maxAniso)) tmp = Float32(sqrt(fmax(fma(Float32(Float32(dX_46_u * dX_46_u) * floor(w)), floor(w), (t_0 ^ Float32(2.0))), t_3)) / floor(maxAniso)); else tmp = Float32(t_6 / sqrt(t_5)); end return 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 := t\_1 \cdot t\_1 + t\_2 \cdot t\_2\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := \mathsf{max}\left(t\_4 \cdot t\_4 + t\_0 \cdot t\_0, t\_3\right)\\
t_6 := \left|t\_4 \cdot t\_2 - t\_0 \cdot t\_1\right|\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_5}{t\_6} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(\left(dX.u \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor , \left\lfloor w\right\rfloor , {t\_0}^{2}\right), t\_3\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_6}{\sqrt{t\_5}}\\
\end{array}
\end{array}
\end{array}
Initial program 76.2%
lift-+.f32N/A
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
associate-*l*N/A
*-commutativeN/A
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
lift-floor.f32N/A
*-commutativeN/A
pow-prod-downN/A
lower-fma.f32N/A
Applied rewrites76.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fmax
(+ (pow (* (floor h) dX.v) 2.0) (pow (* (floor w) dX.u) 2.0))
(+ (pow (* (floor h) dY.v) 2.0) (pow (* (floor w) dY.u) 2.0))))
(t_1 (sqrt t_0))
(t_2
(fabs (* (* (floor h) (floor w)) (- (* dY.u dX.v) (* dY.v dX.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((floorf(h) * dX_46_v), 2.0f) + powf((floorf(w) * dX_46_u), 2.0f)), (powf((floorf(h) * dY_46_v), 2.0f) + powf((floorf(w) * dY_46_u), 2.0f)));
float t_1 = sqrtf(t_0);
float t_2 = fabsf(((floorf(h) * floorf(w)) * ((dY_46_u * dX_46_v) - (dY_46_v * dX_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 = fmax(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))), Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dY_46_u) ^ Float32(2.0)))) t_1 = sqrt(t_0) t_2 = abs(Float32(Float32(floor(h) * floor(w)) * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_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((((floor(h) * dX_46_v) ^ single(2.0)) + ((floor(w) * dX_46_u) ^ single(2.0))), (((floor(h) * dY_46_v) ^ single(2.0)) + ((floor(w) * dY_46_u) ^ single(2.0)))); t_1 = sqrt(t_0); t_2 = abs(((floor(h) * floor(w)) * ((dY_46_u * dX_46_v) - (dY_46_v * dX_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(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}, {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\right)\\
t_1 := \sqrt{t\_0}\\
t_2 := \left|\left(\left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.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 76.2%
Applied rewrites76.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor w)))
(t_1
(fmax
(+ (pow (* (floor h) dX.v) 2.0) (pow (* (floor w) dX.u) 2.0))
(+ (pow (* (floor h) dY.v) 2.0) (pow (* (floor w) dY.u) 2.0))))
(t_2 (sqrt t_1)))
(log2
(if (> (/ t_1 (fabs (* t_0 (* dY.u dX.v)))) (floor maxAniso))
(/ t_2 (floor maxAniso))
(/ (fabs (* t_0 (- (* dY.u dX.v) (* dY.v dX.u)))) t_2)))))
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) * floorf(w);
float t_1 = fmaxf((powf((floorf(h) * dX_46_v), 2.0f) + powf((floorf(w) * dX_46_u), 2.0f)), (powf((floorf(h) * dY_46_v), 2.0f) + powf((floorf(w) * dY_46_u), 2.0f)));
float t_2 = sqrtf(t_1);
float tmp;
if ((t_1 / fabsf((t_0 * (dY_46_u * dX_46_v)))) > floorf(maxAniso)) {
tmp = t_2 / floorf(maxAniso);
} else {
tmp = fabsf((t_0 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / t_2;
}
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) * floor(w)) t_1 = fmax(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))), Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dY_46_u) ^ Float32(2.0)))) t_2 = sqrt(t_1) tmp = Float32(0.0) if (Float32(t_1 / abs(Float32(t_0 * Float32(dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = Float32(t_2 / floor(maxAniso)); else tmp = Float32(abs(Float32(t_0 * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) / t_2); 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) * floor(w); t_1 = max((((floor(h) * dX_46_v) ^ single(2.0)) + ((floor(w) * dX_46_u) ^ single(2.0))), (((floor(h) * dY_46_v) ^ single(2.0)) + ((floor(w) * dY_46_u) ^ single(2.0)))); t_2 = sqrt(t_1); tmp = single(0.0); if ((t_1 / abs((t_0 * (dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = t_2 / floor(maxAniso); else tmp = abs((t_0 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / t_2; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_1 := \mathsf{max}\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}, {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\right)\\
t_2 := \sqrt{t\_1}\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_1}{\left|t\_0 \cdot \left(dY.u \cdot dX.v\right)\right|} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_2}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|t\_0 \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|}{t\_2}\\
\end{array}
\end{array}
\end{array}
Initial program 76.2%
Applied rewrites76.2%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3275.5
Applied rewrites75.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (pow (* (floor w) dY.u) 2.0))
(t_2 (pow (* (floor h) dY.v) 2.0))
(t_3 (+ t_2 t_1))
(t_4 (* (floor h) (floor w)))
(t_5 (fabs (* t_4 (- (* dY.u dX.v) (* dY.v dX.u)))))
(t_6 (fabs (* t_4 (* dY.u dX.v))))
(t_7 (pow (* (floor w) dX.u) 2.0))
(t_8 (+ (pow t_0 2.0) t_7))
(t_9 (fmax t_8 t_1))
(t_10 (sqrt (fmax t_8 t_3))))
(if (<= dX.v -9.99999983775159e-18)
(log2
(if (> (/ (fmax t_8 t_2) t_6) (floor maxAniso))
(/ t_10 (floor maxAniso))
(/ t_5 (sqrt t_9))))
(log2
(if (> (/ t_9 t_6) (floor maxAniso))
(/ (sqrt (fmax (+ (exp (* (log t_0) 2.0)) t_7) t_3)) (floor maxAniso))
(/ t_5 t_10))))))
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 = powf((floorf(w) * dY_46_u), 2.0f);
float t_2 = powf((floorf(h) * dY_46_v), 2.0f);
float t_3 = t_2 + t_1;
float t_4 = floorf(h) * floorf(w);
float t_5 = fabsf((t_4 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u))));
float t_6 = fabsf((t_4 * (dY_46_u * dX_46_v)));
float t_7 = powf((floorf(w) * dX_46_u), 2.0f);
float t_8 = powf(t_0, 2.0f) + t_7;
float t_9 = fmaxf(t_8, t_1);
float t_10 = sqrtf(fmaxf(t_8, t_3));
float tmp_1;
if (dX_46_v <= -9.99999983775159e-18f) {
float tmp_2;
if ((fmaxf(t_8, t_2) / t_6) > floorf(maxAniso)) {
tmp_2 = t_10 / floorf(maxAniso);
} else {
tmp_2 = t_5 / sqrtf(t_9);
}
tmp_1 = log2f(tmp_2);
} else {
float tmp_3;
if ((t_9 / t_6) > floorf(maxAniso)) {
tmp_3 = sqrtf(fmaxf((expf((logf(t_0) * 2.0f)) + t_7), t_3)) / floorf(maxAniso);
} else {
tmp_3 = t_5 / t_10;
}
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 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(w) * dY_46_u) ^ Float32(2.0) t_2 = Float32(floor(h) * dY_46_v) ^ Float32(2.0) t_3 = Float32(t_2 + t_1) t_4 = Float32(floor(h) * floor(w)) t_5 = abs(Float32(t_4 * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) t_6 = abs(Float32(t_4 * Float32(dY_46_u * dX_46_v))) t_7 = Float32(floor(w) * dX_46_u) ^ Float32(2.0) t_8 = Float32((t_0 ^ Float32(2.0)) + t_7) t_9 = fmax(t_8, t_1) t_10 = sqrt(fmax(t_8, t_3)) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(-9.99999983775159e-18)) tmp_2 = Float32(0.0) if (Float32(fmax(t_8, t_2) / t_6) > floor(maxAniso)) tmp_2 = Float32(t_10 / floor(maxAniso)); else tmp_2 = Float32(t_5 / sqrt(t_9)); end tmp_1 = log2(tmp_2); else tmp_3 = Float32(0.0) if (Float32(t_9 / t_6) > floor(maxAniso)) tmp_3 = Float32(sqrt(fmax(Float32(exp(Float32(log(t_0) * Float32(2.0))) + t_7), t_3)) / floor(maxAniso)); else tmp_3 = Float32(t_5 / t_10); 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 = floor(h) * dX_46_v; t_1 = (floor(w) * dY_46_u) ^ single(2.0); t_2 = (floor(h) * dY_46_v) ^ single(2.0); t_3 = t_2 + t_1; t_4 = floor(h) * floor(w); t_5 = abs((t_4 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))); t_6 = abs((t_4 * (dY_46_u * dX_46_v))); t_7 = (floor(w) * dX_46_u) ^ single(2.0); t_8 = (t_0 ^ single(2.0)) + t_7; t_9 = max(t_8, t_1); t_10 = sqrt(max(t_8, t_3)); tmp_2 = single(0.0); if (dX_46_v <= single(-9.99999983775159e-18)) tmp_3 = single(0.0); if ((max(t_8, t_2) / t_6) > floor(maxAniso)) tmp_3 = t_10 / floor(maxAniso); else tmp_3 = t_5 / sqrt(t_9); end tmp_2 = log2(tmp_3); else tmp_4 = single(0.0); if ((t_9 / t_6) > floor(maxAniso)) tmp_4 = sqrt(max((exp((log(t_0) * single(2.0))) + t_7), t_3)) / floor(maxAniso); else tmp_4 = t_5 / t_10; end tmp_2 = log2(tmp_4); end tmp_5 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_3 := t\_2 + t\_1\\
t_4 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_5 := \left|t\_4 \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|\\
t_6 := \left|t\_4 \cdot \left(dY.u \cdot dX.v\right)\right|\\
t_7 := {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\\
t_8 := {t\_0}^{2} + t\_7\\
t_9 := \mathsf{max}\left(t\_8, t\_1\right)\\
t_10 := \sqrt{\mathsf{max}\left(t\_8, t\_3\right)}\\
\mathbf{if}\;dX.v \leq -9.99999983775159 \cdot 10^{-18}:\\
\;\;\;\;\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left(t\_8, t\_2\right)}{t\_6} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_10}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_5}{\sqrt{t\_9}}\\
\end{array}\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{t\_9}{t\_6} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{\mathsf{max}\left(e^{\log t\_0 \cdot 2} + t\_7, t\_3\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_5}{t\_10}\\
\end{array}\\
\end{array}
\end{array}
if dX.v < -9.99999984e-18Initial program 75.8%
Applied rewrites75.8%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3275.0
Applied rewrites75.0%
Taylor expanded in dY.u around 0
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
+-commutativeN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3265.4
Applied rewrites65.4%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3265.4
Applied rewrites65.4%
if -9.99999984e-18 < dX.v Initial program 76.6%
Applied rewrites76.6%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3275.8
Applied rewrites75.8%
lift-pow.f32N/A
pow-to-expN/A
lower-exp.f32N/A
lower-*.f32N/A
lower-log.f3274.3
Applied rewrites74.3%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3273.4
Applied rewrites73.4%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor w) dY.u) 2.0))
(t_1 (+ (pow (* (floor h) dY.v) 2.0) t_0))
(t_2 (pow (* (floor h) dX.v) 2.0))
(t_3 (+ t_2 (pow (* (floor w) dX.u) 2.0)))
(t_4 (* (floor h) (floor w))))
(log2
(if (> (/ (fmax t_3 t_0) (fabs (* t_4 (* dY.u dX.v)))) (floor maxAniso))
(/
(sqrt (fmax (fma (pow (floor w) 2.0) (* dX.u dX.u) t_2) t_1))
(floor maxAniso))
(/
(fabs (* t_4 (- (* dY.u dX.v) (* dY.v dX.u))))
(sqrt (fmax t_3 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((floorf(w) * dY_46_u), 2.0f);
float t_1 = powf((floorf(h) * dY_46_v), 2.0f) + t_0;
float t_2 = powf((floorf(h) * dX_46_v), 2.0f);
float t_3 = t_2 + powf((floorf(w) * dX_46_u), 2.0f);
float t_4 = floorf(h) * floorf(w);
float tmp;
if ((fmaxf(t_3, t_0) / fabsf((t_4 * (dY_46_u * dX_46_v)))) > floorf(maxAniso)) {
tmp = sqrtf(fmaxf(fmaf(powf(floorf(w), 2.0f), (dX_46_u * dX_46_u), t_2), t_1)) / floorf(maxAniso);
} else {
tmp = fabsf((t_4 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / sqrtf(fmaxf(t_3, t_1));
}
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) ^ Float32(2.0) t_1 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + t_0) t_2 = Float32(floor(h) * dX_46_v) ^ Float32(2.0) t_3 = Float32(t_2 + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) t_4 = Float32(floor(h) * floor(w)) tmp = Float32(0.0) if (Float32(fmax(t_3, t_0) / abs(Float32(t_4 * Float32(dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = Float32(sqrt(fmax(fma((floor(w) ^ Float32(2.0)), Float32(dX_46_u * dX_46_u), t_2), t_1)) / floor(maxAniso)); else tmp = Float32(abs(Float32(t_4 * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) / sqrt(fmax(t_3, t_1))); end return log2(tmp) end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_1 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + t\_0\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_3 := t\_2 + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\\
t_4 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left(t\_3, t\_0\right)}{\left|t\_4 \cdot \left(dY.u \cdot dX.v\right)\right|} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{\mathsf{max}\left(\mathsf{fma}\left({\left(\left\lfloor w\right\rfloor \right)}^{2}, dX.u \cdot dX.u, t\_2\right), t\_1\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|t\_4 \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|}{\sqrt{\mathsf{max}\left(t\_3, t\_1\right)}}\\
\end{array}
\end{array}
\end{array}
Initial program 76.2%
Applied rewrites76.2%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3275.5
Applied rewrites75.5%
lift-+.f32N/A
+-commutativeN/A
lift-pow.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
unpow-prod-downN/A
lower-fma.f32N/A
lower-pow.f32N/A
lift-floor.f32N/A
unpow2N/A
lower-*.f3275.4
Applied rewrites75.4%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3274.6
Applied rewrites74.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor w) dY.u) 2.0))
(t_1 (pow (* (floor h) dY.v) 2.0))
(t_2 (+ (pow (* (floor h) dX.v) 2.0) (pow (* (floor w) dX.u) 2.0)))
(t_3 (* (floor h) (floor w))))
(log2
(if (> (/ (fmax t_2 t_1) (fabs (* t_3 (* dY.u dX.v)))) (floor maxAniso))
(/ (sqrt (fmax t_2 (+ t_1 t_0))) (floor maxAniso))
(/
(fabs (* t_3 (- (* dY.u dX.v) (* dY.v dX.u))))
(sqrt (fmax t_2 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((floorf(w) * dY_46_u), 2.0f);
float t_1 = powf((floorf(h) * dY_46_v), 2.0f);
float t_2 = powf((floorf(h) * dX_46_v), 2.0f) + powf((floorf(w) * dX_46_u), 2.0f);
float t_3 = floorf(h) * floorf(w);
float tmp;
if ((fmaxf(t_2, t_1) / fabsf((t_3 * (dY_46_u * dX_46_v)))) > floorf(maxAniso)) {
tmp = sqrtf(fmaxf(t_2, (t_1 + t_0))) / floorf(maxAniso);
} else {
tmp = fabsf((t_3 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / sqrtf(fmaxf(t_2, t_0));
}
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) ^ Float32(2.0) t_1 = Float32(floor(h) * dY_46_v) ^ Float32(2.0) t_2 = Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) t_3 = Float32(floor(h) * floor(w)) tmp = Float32(0.0) if (Float32(fmax(t_2, t_1) / abs(Float32(t_3 * Float32(dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = Float32(sqrt(fmax(t_2, Float32(t_1 + t_0))) / floor(maxAniso)); else tmp = Float32(abs(Float32(t_3 * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) / sqrt(fmax(t_2, 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 = (floor(w) * dY_46_u) ^ single(2.0); t_1 = (floor(h) * dY_46_v) ^ single(2.0); t_2 = ((floor(h) * dX_46_v) ^ single(2.0)) + ((floor(w) * dX_46_u) ^ single(2.0)); t_3 = floor(h) * floor(w); tmp = single(0.0); if ((max(t_2, t_1) / abs((t_3 * (dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = sqrt(max(t_2, (t_1 + t_0))) / floor(maxAniso); else tmp = abs((t_3 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / sqrt(max(t_2, t_0)); end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_1 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\\
t_3 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left(t\_2, t\_1\right)}{\left|t\_3 \cdot \left(dY.u \cdot dX.v\right)\right|} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{\sqrt{\mathsf{max}\left(t\_2, t\_1 + t\_0\right)}}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|t\_3 \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|}{\sqrt{\mathsf{max}\left(t\_2, t\_0\right)}}\\
\end{array}
\end{array}
\end{array}
Initial program 76.2%
Applied rewrites76.2%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3275.5
Applied rewrites75.5%
Taylor expanded in dY.u around 0
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
+-commutativeN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3266.1
Applied rewrites66.1%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3266.0
Applied rewrites66.0%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor h) dY.v) 2.0))
(t_1 (* (floor h) (floor w)))
(t_2 (pow (* (floor w) dX.u) 2.0))
(t_3
(sqrt
(fmax
(+ (pow (* (floor h) dX.v) 2.0) t_2)
(+ t_0 (pow (* (floor w) dY.u) 2.0))))))
(log2
(if (> (/ (fmax t_2 t_0) (fabs (* t_1 (* dY.u dX.v)))) (floor maxAniso))
(/ t_3 (floor maxAniso))
(/ (fabs (* t_1 (- (* dY.u dX.v) (* dY.v dX.u)))) t_3)))))
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((floorf(h) * dY_46_v), 2.0f);
float t_1 = floorf(h) * floorf(w);
float t_2 = powf((floorf(w) * dX_46_u), 2.0f);
float t_3 = sqrtf(fmaxf((powf((floorf(h) * dX_46_v), 2.0f) + t_2), (t_0 + powf((floorf(w) * dY_46_u), 2.0f))));
float tmp;
if ((fmaxf(t_2, t_0) / fabsf((t_1 * (dY_46_u * dX_46_v)))) > floorf(maxAniso)) {
tmp = t_3 / floorf(maxAniso);
} else {
tmp = fabsf((t_1 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / t_3;
}
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) * dY_46_v) ^ Float32(2.0) t_1 = Float32(floor(h) * floor(w)) t_2 = Float32(floor(w) * dX_46_u) ^ Float32(2.0) t_3 = sqrt(fmax(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + t_2), Float32(t_0 + (Float32(floor(w) * dY_46_u) ^ Float32(2.0))))) tmp = Float32(0.0) if (Float32(fmax(t_2, t_0) / abs(Float32(t_1 * Float32(dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = Float32(t_3 / floor(maxAniso)); else tmp = Float32(abs(Float32(t_1 * Float32(Float32(dY_46_u * dX_46_v) - Float32(dY_46_v * dX_46_u)))) / t_3); 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) * dY_46_v) ^ single(2.0); t_1 = floor(h) * floor(w); t_2 = (floor(w) * dX_46_u) ^ single(2.0); t_3 = sqrt(max((((floor(h) * dX_46_v) ^ single(2.0)) + t_2), (t_0 + ((floor(w) * dY_46_u) ^ single(2.0))))); tmp = single(0.0); if ((max(t_2, t_0) / abs((t_1 * (dY_46_u * dX_46_v)))) > floor(maxAniso)) tmp = t_3 / floor(maxAniso); else tmp = abs((t_1 * ((dY_46_u * dX_46_v) - (dY_46_v * dX_46_u)))) / t_3; end tmp_2 = log2(tmp); end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_1 := \left\lfloor h\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_2 := {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\\
t_3 := \sqrt{\mathsf{max}\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + t\_2, t\_0 + {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\right)}\\
\log_{2} \begin{array}{l}
\mathbf{if}\;\frac{\mathsf{max}\left(t\_2, t\_0\right)}{\left|t\_1 \cdot \left(dY.u \cdot dX.v\right)\right|} > \left\lfloor maxAniso\right\rfloor :\\
\;\;\;\;\frac{t\_3}{\left\lfloor maxAniso\right\rfloor }\\
\mathbf{else}:\\
\;\;\;\;\frac{\left|t\_1 \cdot \left(dY.u \cdot dX.v - dY.v \cdot dX.u\right)\right|}{t\_3}\\
\end{array}
\end{array}
\end{array}
Initial program 76.2%
Applied rewrites76.2%
Taylor expanded in dX.u around 0
*-commutativeN/A
lift-*.f3275.5
Applied rewrites75.5%
Taylor expanded in dY.u around 0
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
+-commutativeN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
*-commutativeN/A
unpow-prod-downN/A
lift-floor.f32N/A
lift-*.f32N/A
lift-pow.f3266.1
Applied rewrites66.1%
Taylor expanded in dX.u around inf
Applied rewrites57.2%
herbie shell --seed 2025091
(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)))))))))