
(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 w) dX.u))
(t_3 (+ (* t_2 t_2) (* t_0 t_0)))
(t_4 (* (floor h) dY.v))
(t_5 (+ (* t_1 t_1) (* t_4 t_4)))
(t_6 (/ 1.0 (sqrt (fmax t_3 t_5)))))
(if (>= t_3 t_5) (* t_6 t_2) (* t_6 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 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(w) * dX_46_u;
float t_3 = (t_2 * t_2) + (t_0 * t_0);
float t_4 = floorf(h) * dY_46_v;
float t_5 = (t_1 * t_1) + (t_4 * t_4);
float t_6 = 1.0f / sqrtf(fmaxf(t_3, t_5));
float tmp;
if (t_3 >= t_5) {
tmp = t_6 * t_2;
} else {
tmp = t_6 * t_1;
}
return 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(w) * dX_46_u) t_3 = Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(Float32(t_1 * t_1) + Float32(t_4 * t_4)) t_6 = Float32(Float32(1.0) / sqrt(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(t_3, t_5))))) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_6 * t_2); else tmp = Float32(t_6 * t_1); end return 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(w) * dX_46_u; t_3 = (t_2 * t_2) + (t_0 * t_0); t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); t_6 = single(1.0) / sqrt(max(t_3, t_5)); tmp = single(0.0); if (t_3 >= t_5) tmp = t_6 * t_2; else tmp = t_6 * t_1; end tmp_2 = 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 w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot t\_2\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_1\\
\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 w) dX.u))
(t_3 (+ (* t_2 t_2) (* t_0 t_0)))
(t_4 (* (floor h) dY.v))
(t_5 (+ (* t_1 t_1) (* t_4 t_4)))
(t_6 (/ 1.0 (sqrt (fmax t_3 t_5)))))
(if (>= t_3 t_5) (* t_6 t_2) (* t_6 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 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(w) * dX_46_u;
float t_3 = (t_2 * t_2) + (t_0 * t_0);
float t_4 = floorf(h) * dY_46_v;
float t_5 = (t_1 * t_1) + (t_4 * t_4);
float t_6 = 1.0f / sqrtf(fmaxf(t_3, t_5));
float tmp;
if (t_3 >= t_5) {
tmp = t_6 * t_2;
} else {
tmp = t_6 * t_1;
}
return 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(w) * dX_46_u) t_3 = Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(Float32(t_1 * t_1) + Float32(t_4 * t_4)) t_6 = Float32(Float32(1.0) / sqrt(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(t_3, t_5))))) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_6 * t_2); else tmp = Float32(t_6 * t_1); end return 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(w) * dX_46_u; t_3 = (t_2 * t_2) + (t_0 * t_0); t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); t_6 = single(1.0) / sqrt(max(t_3, t_5)); tmp = single(0.0); if (t_3 >= t_5) tmp = t_6 * t_2; else tmp = t_6 * t_1; end tmp_2 = 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 w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot t\_2\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_1\\
\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) (* (floor h) (* dY.v t_2))))
(t_4 (* (floor w) dX.u))
(t_5 (+ (* (floor w) (* dX.u t_4)) (* (floor h) (* dX.v t_0)))))
(if (>= t_5 t_3)
(/ t_4 (sqrt (fmax t_5 t_3)))
(/
(floor w)
(/
(pow
(fmax (+ (pow t_0 2.0) (pow t_4 2.0)) (+ (pow t_1 2.0) (pow t_2 2.0)))
0.5)
dY.u)))))
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) + (floorf(h) * (dY_46_v * t_2));
float t_4 = floorf(w) * dX_46_u;
float t_5 = (floorf(w) * (dX_46_u * t_4)) + (floorf(h) * (dX_46_v * t_0));
float tmp;
if (t_5 >= t_3) {
tmp = t_4 / sqrtf(fmaxf(t_5, t_3));
} else {
tmp = floorf(w) / (powf(fmaxf((powf(t_0, 2.0f) + powf(t_4, 2.0f)), (powf(t_1, 2.0f) + powf(t_2, 2.0f))), 0.5f) / dY_46_u);
}
return 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(floor(h) * Float32(dY_46_v * t_2))) t_4 = Float32(floor(w) * dX_46_u) t_5 = Float32(Float32(floor(w) * Float32(dX_46_u * t_4)) + Float32(floor(h) * Float32(dX_46_v * t_0))) tmp = Float32(0.0) if (t_5 >= t_3) tmp = Float32(t_4 / sqrt(((t_5 != t_5) ? t_3 : ((t_3 != t_3) ? t_5 : max(t_5, t_3))))); else tmp = Float32(floor(w) / Float32((((Float32((t_0 ^ Float32(2.0)) + (t_4 ^ Float32(2.0))) != Float32((t_0 ^ Float32(2.0)) + (t_4 ^ Float32(2.0)))) ? Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) : ((Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) != Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))) ? Float32((t_0 ^ Float32(2.0)) + (t_4 ^ Float32(2.0))) : max(Float32((t_0 ^ Float32(2.0)) + (t_4 ^ Float32(2.0))), Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))))) ^ Float32(0.5)) / dY_46_u)); end return 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 = (t_1 * t_1) + (floor(h) * (dY_46_v * t_2)); t_4 = floor(w) * dX_46_u; t_5 = (floor(w) * (dX_46_u * t_4)) + (floor(h) * (dX_46_v * t_0)); tmp = single(0.0); if (t_5 >= t_3) tmp = t_4 / sqrt(max(t_5, t_3)); else tmp = floor(w) / ((max(((t_0 ^ single(2.0)) + (t_4 ^ single(2.0))), ((t_1 ^ single(2.0)) + (t_2 ^ single(2.0)))) ^ single(0.5)) / dY_46_u); end tmp_2 = 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 + \left\lfloor h\right\rfloor \cdot \left(dY.v \cdot t\_2\right)\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := \left\lfloor w\right\rfloor \cdot \left(dX.u \cdot t\_4\right) + \left\lfloor h\right\rfloor \cdot \left(dX.v \cdot t\_0\right)\\
\mathbf{if}\;t\_5 \geq t\_3:\\
\;\;\;\;\frac{t\_4}{\sqrt{\mathsf{max}\left(t\_5, t\_3\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{{\left(\mathsf{max}\left({t\_0}^{2} + {t\_4}^{2}, {t\_1}^{2} + {t\_2}^{2}\right)\right)}^{0.5}}{dY.u}}\\
\end{array}
\end{array}
Initial program 72.3%
Simplified72.5%
Applied egg-rr72.6%
Final simplification72.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dX.u))
(t_1 (* (floor w) dY.u))
(t_2 (+ (pow t_1 2.0) (pow (* (floor h) dY.v) 2.0)))
(t_3 (+ (pow (* (floor h) dX.v) 2.0) (pow t_0 2.0)))
(t_4 (pow (fmax t_3 t_2) 0.5)))
(if (>= t_3 t_2) (/ t_0 t_4) (/ t_1 t_4))))
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) * dX_46_u;
float t_1 = floorf(w) * dY_46_u;
float t_2 = powf(t_1, 2.0f) + powf((floorf(h) * dY_46_v), 2.0f);
float t_3 = powf((floorf(h) * dX_46_v), 2.0f) + powf(t_0, 2.0f);
float t_4 = powf(fmaxf(t_3, t_2), 0.5f);
float tmp;
if (t_3 >= t_2) {
tmp = t_0 / t_4;
} else {
tmp = t_1 / t_4;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(w) * dX_46_u) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32((t_1 ^ Float32(2.0)) + (Float32(floor(h) * dY_46_v) ^ Float32(2.0))) t_3 = Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) t_4 = ((t_3 != t_3) ? t_2 : ((t_2 != t_2) ? t_3 : max(t_3, t_2))) ^ Float32(0.5) tmp = Float32(0.0) if (t_3 >= t_2) tmp = Float32(t_0 / t_4); else tmp = Float32(t_1 / t_4); end return 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) * dX_46_u; t_1 = floor(w) * dY_46_u; t_2 = (t_1 ^ single(2.0)) + ((floor(h) * dY_46_v) ^ single(2.0)); t_3 = ((floor(h) * dX_46_v) ^ single(2.0)) + (t_0 ^ single(2.0)); t_4 = max(t_3, t_2) ^ single(0.5); tmp = single(0.0); if (t_3 >= t_2) tmp = t_0 / t_4; else tmp = t_1 / t_4; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := {t\_1}^{2} + {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_3 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {t\_0}^{2}\\
t_4 := {\left(\mathsf{max}\left(t\_3, t\_2\right)\right)}^{0.5}\\
\mathbf{if}\;t\_3 \geq t\_2:\\
\;\;\;\;\frac{t\_0}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{t\_4}\\
\end{array}
\end{array}
Initial program 72.3%
Simplified72.5%
Applied egg-rr72.6%
Final simplification72.6%
(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 w) dX.u))
(t_3 (* (floor h) dY.v))
(t_4
(pow
(fmax
(+ (pow t_0 2.0) (pow t_2 2.0))
(+ (pow t_1 2.0) (pow t_3 2.0)))
0.5))
(t_5 (+ (* t_1 t_1) (* (floor h) (* dY.v t_3))))
(t_6
(sqrt
(fmax
(+ (* (floor w) (* dX.u t_2)) (* (floor h) (* dX.v t_0)))
t_5))))
(if (<= dX.v 0.00800000037997961)
(if (>= (* dX.u (* dX.u (pow (floor w) 2.0))) t_5)
(/ 1.0 (/ t_4 t_2))
(/ (floor w) (/ t_4 dY.u)))
(if (>= (* dX.v (* dX.v (pow (floor h) 2.0))) t_5)
(/ t_2 t_6)
(/ t_1 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 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(w) * dX_46_u;
float t_3 = floorf(h) * dY_46_v;
float t_4 = powf(fmaxf((powf(t_0, 2.0f) + powf(t_2, 2.0f)), (powf(t_1, 2.0f) + powf(t_3, 2.0f))), 0.5f);
float t_5 = (t_1 * t_1) + (floorf(h) * (dY_46_v * t_3));
float t_6 = sqrtf(fmaxf(((floorf(w) * (dX_46_u * t_2)) + (floorf(h) * (dX_46_v * t_0))), t_5));
float tmp_1;
if (dX_46_v <= 0.00800000037997961f) {
float tmp_2;
if ((dX_46_u * (dX_46_u * powf(floorf(w), 2.0f))) >= t_5) {
tmp_2 = 1.0f / (t_4 / t_2);
} else {
tmp_2 = floorf(w) / (t_4 / dY_46_u);
}
tmp_1 = tmp_2;
} else if ((dX_46_v * (dX_46_v * powf(floorf(h), 2.0f))) >= t_5) {
tmp_1 = t_2 / t_6;
} else {
tmp_1 = t_1 / t_6;
}
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) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(floor(h) * dY_46_v) t_4 = ((Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) != Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))) ? Float32((t_1 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))) : ((Float32((t_1 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))) != Float32((t_1 ^ Float32(2.0)) + (t_3 ^ Float32(2.0)))) ? Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) : max(Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))), Float32((t_1 ^ Float32(2.0)) + (t_3 ^ Float32(2.0)))))) ^ Float32(0.5) t_5 = Float32(Float32(t_1 * t_1) + Float32(floor(h) * Float32(dY_46_v * t_3))) t_6 = sqrt(((Float32(Float32(floor(w) * Float32(dX_46_u * t_2)) + Float32(floor(h) * Float32(dX_46_v * t_0))) != Float32(Float32(floor(w) * Float32(dX_46_u * t_2)) + Float32(floor(h) * Float32(dX_46_v * t_0)))) ? t_5 : ((t_5 != t_5) ? Float32(Float32(floor(w) * Float32(dX_46_u * t_2)) + Float32(floor(h) * Float32(dX_46_v * t_0))) : max(Float32(Float32(floor(w) * Float32(dX_46_u * t_2)) + Float32(floor(h) * Float32(dX_46_v * t_0))), t_5)))) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(0.00800000037997961)) tmp_2 = Float32(0.0) if (Float32(dX_46_u * Float32(dX_46_u * (floor(w) ^ Float32(2.0)))) >= t_5) tmp_2 = Float32(Float32(1.0) / Float32(t_4 / t_2)); else tmp_2 = Float32(floor(w) / Float32(t_4 / dY_46_u)); end tmp_1 = tmp_2; elseif (Float32(dX_46_v * Float32(dX_46_v * (floor(h) ^ Float32(2.0)))) >= t_5) tmp_1 = Float32(t_2 / t_6); else tmp_1 = Float32(t_1 / t_6); end return tmp_1 end
function tmp_4 = 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(w) * dX_46_u; t_3 = floor(h) * dY_46_v; t_4 = max(((t_0 ^ single(2.0)) + (t_2 ^ single(2.0))), ((t_1 ^ single(2.0)) + (t_3 ^ single(2.0)))) ^ single(0.5); t_5 = (t_1 * t_1) + (floor(h) * (dY_46_v * t_3)); t_6 = sqrt(max(((floor(w) * (dX_46_u * t_2)) + (floor(h) * (dX_46_v * t_0))), t_5)); tmp_2 = single(0.0); if (dX_46_v <= single(0.00800000037997961)) tmp_3 = single(0.0); if ((dX_46_u * (dX_46_u * (floor(w) ^ single(2.0)))) >= t_5) tmp_3 = single(1.0) / (t_4 / t_2); else tmp_3 = floor(w) / (t_4 / dY_46_u); end tmp_2 = tmp_3; elseif ((dX_46_v * (dX_46_v * (floor(h) ^ single(2.0)))) >= t_5) tmp_2 = t_2 / t_6; else tmp_2 = t_1 / t_6; end tmp_4 = tmp_2; 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 w\right\rfloor \cdot dX.u\\
t_3 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_4 := {\left(\mathsf{max}\left({t\_0}^{2} + {t\_2}^{2}, {t\_1}^{2} + {t\_3}^{2}\right)\right)}^{0.5}\\
t_5 := t\_1 \cdot t\_1 + \left\lfloor h\right\rfloor \cdot \left(dY.v \cdot t\_3\right)\\
t_6 := \sqrt{\mathsf{max}\left(\left\lfloor w\right\rfloor \cdot \left(dX.u \cdot t\_2\right) + \left\lfloor h\right\rfloor \cdot \left(dX.v \cdot t\_0\right), t\_5\right)}\\
\mathbf{if}\;dX.v \leq 0.00800000037997961:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;dX.u \cdot \left(dX.u \cdot {\left(\left\lfloor w\right\rfloor \right)}^{2}\right) \geq t\_5:\\
\;\;\;\;\frac{1}{\frac{t\_4}{t\_2}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{t\_4}{dY.u}}\\
\end{array}\\
\mathbf{elif}\;dX.v \cdot \left(dX.v \cdot {\left(\left\lfloor h\right\rfloor \right)}^{2}\right) \geq t\_5:\\
\;\;\;\;\frac{t\_2}{t\_6}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{t\_6}\\
\end{array}
\end{array}
if dX.v < 0.00800000038Initial program 73.8%
Simplified74.1%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
*-lowering-*.f32N/A
*-commutativeN/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3267.7%
Simplified67.7%
Applied egg-rr67.7%
Applied egg-rr67.7%
Applied egg-rr67.8%
if 0.00800000038 < dX.v Initial program 67.7%
Simplified68.0%
Taylor expanded in dX.u around 0
unpow2N/A
associate-*l*N/A
*-commutativeN/A
*-lowering-*.f32N/A
*-commutativeN/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3262.6%
Simplified62.6%
Final simplification66.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor w) dX.u))
(t_2 (* (floor h) dY.v))
(t_3
(pow
(fmax
(+ (pow (* (floor h) dX.v) 2.0) (pow t_1 2.0))
(+ (pow t_0 2.0) (pow t_2 2.0)))
0.5)))
(if (>=
(* dX.u (* dX.u (pow (floor w) 2.0)))
(+ (* t_0 t_0) (* (floor h) (* dY.v t_2))))
(/ 1.0 (/ t_3 t_1))
(/ (floor w) (/ t_3 dY.u)))))
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 = floorf(w) * dX_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = powf(fmaxf((powf((floorf(h) * dX_46_v), 2.0f) + powf(t_1, 2.0f)), (powf(t_0, 2.0f) + powf(t_2, 2.0f))), 0.5f);
float tmp;
if ((dX_46_u * (dX_46_u * powf(floorf(w), 2.0f))) >= ((t_0 * t_0) + (floorf(h) * (dY_46_v * t_2)))) {
tmp = 1.0f / (t_3 / t_1);
} else {
tmp = floorf(w) / (t_3 / dY_46_u);
}
return 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 = Float32(floor(w) * dX_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = ((Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) != Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0)))) ? Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) : ((Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) != Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))) ? Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) : max(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))), Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))))) ^ Float32(0.5) tmp = Float32(0.0) if (Float32(dX_46_u * Float32(dX_46_u * (floor(w) ^ Float32(2.0)))) >= Float32(Float32(t_0 * t_0) + Float32(floor(h) * Float32(dY_46_v * t_2)))) tmp = Float32(Float32(1.0) / Float32(t_3 / t_1)); else tmp = Float32(floor(w) / Float32(t_3 / dY_46_u)); end return 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 = floor(w) * dX_46_u; t_2 = floor(h) * dY_46_v; t_3 = max((((floor(h) * dX_46_v) ^ single(2.0)) + (t_1 ^ single(2.0))), ((t_0 ^ single(2.0)) + (t_2 ^ single(2.0)))) ^ single(0.5); tmp = single(0.0); if ((dX_46_u * (dX_46_u * (floor(w) ^ single(2.0)))) >= ((t_0 * t_0) + (floor(h) * (dY_46_v * t_2)))) tmp = single(1.0) / (t_3 / t_1); else tmp = floor(w) / (t_3 / dY_46_u); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_1 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_2 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_3 := {\left(\mathsf{max}\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {t\_1}^{2}, {t\_0}^{2} + {t\_2}^{2}\right)\right)}^{0.5}\\
\mathbf{if}\;dX.u \cdot \left(dX.u \cdot {\left(\left\lfloor w\right\rfloor \right)}^{2}\right) \geq t\_0 \cdot t\_0 + \left\lfloor h\right\rfloor \cdot \left(dY.v \cdot t\_2\right):\\
\;\;\;\;\frac{1}{\frac{t\_3}{t\_1}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{t\_3}{dY.u}}\\
\end{array}
\end{array}
Initial program 72.3%
Simplified72.5%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
*-lowering-*.f32N/A
*-commutativeN/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3262.1%
Simplified62.1%
Applied egg-rr62.2%
Applied egg-rr62.2%
Applied egg-rr62.2%
Final simplification62.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dX.u))
(t_1 (pow t_0 2.0))
(t_2 (+ (pow (* (floor w) dY.u) 2.0) (pow (* (floor h) dY.v) 2.0)))
(t_3 (fmax (+ (pow (* (floor h) dX.v) 2.0) t_1) t_2)))
(if (>= t_1 t_2)
(/ t_0 (/ 1.0 (pow t_3 -0.5)))
(/ (floor w) (/ (pow t_3 0.5) dY.u)))))
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) * dX_46_u;
float t_1 = powf(t_0, 2.0f);
float t_2 = powf((floorf(w) * dY_46_u), 2.0f) + powf((floorf(h) * dY_46_v), 2.0f);
float t_3 = fmaxf((powf((floorf(h) * dX_46_v), 2.0f) + t_1), t_2);
float tmp;
if (t_1 >= t_2) {
tmp = t_0 / (1.0f / powf(t_3, -0.5f));
} else {
tmp = floorf(w) / (powf(t_3, 0.5f) / dY_46_u);
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(w) * dX_46_u) t_1 = t_0 ^ Float32(2.0) t_2 = Float32((Float32(floor(w) * dY_46_u) ^ Float32(2.0)) + (Float32(floor(h) * dY_46_v) ^ Float32(2.0))) t_3 = (Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + t_1) != Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + t_1)) ? t_2 : ((t_2 != t_2) ? Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + t_1) : max(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + t_1), t_2)) tmp = Float32(0.0) if (t_1 >= t_2) tmp = Float32(t_0 / Float32(Float32(1.0) / (t_3 ^ Float32(-0.5)))); else tmp = Float32(floor(w) / Float32((t_3 ^ Float32(0.5)) / dY_46_u)); end return 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) * dX_46_u; t_1 = t_0 ^ single(2.0); t_2 = ((floor(w) * dY_46_u) ^ single(2.0)) + ((floor(h) * dY_46_v) ^ single(2.0)); t_3 = max((((floor(h) * dX_46_v) ^ single(2.0)) + t_1), t_2); tmp = single(0.0); if (t_1 >= t_2) tmp = t_0 / (single(1.0) / (t_3 ^ single(-0.5))); else tmp = floor(w) / ((t_3 ^ single(0.5)) / dY_46_u); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_1 := {t\_0}^{2}\\
t_2 := {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2} + {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2}\\
t_3 := \mathsf{max}\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + t\_1, t\_2\right)\\
\mathbf{if}\;t\_1 \geq t\_2:\\
\;\;\;\;\frac{t\_0}{\frac{1}{{t\_3}^{-0.5}}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{{t\_3}^{0.5}}{dY.u}}\\
\end{array}
\end{array}
Initial program 72.3%
Simplified72.5%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
*-lowering-*.f32N/A
*-commutativeN/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3262.1%
Simplified62.1%
Applied egg-rr62.2%
Applied egg-rr62.2%
unpow2N/A
associate-*r*N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
pow2N/A
>=-lowering->=.f32N/A
associate-*r*N/A
unpow2N/A
pow-lowering-pow.f32N/A
*-commutativeN/A
*-lowering-*.f32N/A
floor-lowering-floor.f32N/A
+-commutativeN/A
+-lowering-+.f32N/A
Applied egg-rr62.2%
Final simplification62.2%
herbie shell --seed 2024288
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:name "Anisotropic x16 LOD (line direction, u)"
: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))
(if (>= (+ (* (* (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)))) (* (/ 1.0 (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 w) dX.u)) (* (/ 1.0 (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 w) dY.u))))