
(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\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloorh\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\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloorh\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 (* dX.v (floor h)))
(t_1 (* (floor w) dY.u))
(t_2 (* dX.u (floor w)))
(t_3
(sqrt
(fmax
(pow (hypot t_2 t_0) 2.0)
(pow (hypot t_1 (* (floor h) dY.v)) 2.0)))))
(if (>=
(+ (pow t_2 2.0) (pow t_0 2.0))
(fma (pow dY.v 2.0) (pow (floor h) 2.0) (pow t_1 2.0)))
(/ t_2 t_3)
(/ t_1 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 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = dX_46_u * floorf(w);
float t_3 = sqrtf(fmaxf(powf(hypotf(t_2, t_0), 2.0f), powf(hypotf(t_1, (floorf(h) * dY_46_v)), 2.0f)));
float tmp;
if ((powf(t_2, 2.0f) + powf(t_0, 2.0f)) >= fmaf(powf(dY_46_v, 2.0f), powf(floorf(h), 2.0f), powf(t_1, 2.0f))) {
tmp = t_2 / t_3;
} else {
tmp = t_1 / t_3;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(dX_46_u * floor(w)) t_3 = sqrt((((hypot(t_2, t_0) ^ Float32(2.0)) != (hypot(t_2, t_0) ^ Float32(2.0))) ? (hypot(t_1, Float32(floor(h) * dY_46_v)) ^ Float32(2.0)) : (((hypot(t_1, Float32(floor(h) * dY_46_v)) ^ Float32(2.0)) != (hypot(t_1, Float32(floor(h) * dY_46_v)) ^ Float32(2.0))) ? (hypot(t_2, t_0) ^ Float32(2.0)) : max((hypot(t_2, t_0) ^ Float32(2.0)), (hypot(t_1, Float32(floor(h) * dY_46_v)) ^ Float32(2.0)))))) tmp = Float32(0.0) if (Float32((t_2 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) >= fma((dY_46_v ^ Float32(2.0)), (floor(h) ^ Float32(2.0)), (t_1 ^ Float32(2.0)))) tmp = Float32(t_2 / t_3); else tmp = Float32(t_1 / t_3); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_3 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_2, t\_0\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_1, \left\lfloorh\right\rfloor \cdot dY.v\right)\right)}^{2}\right)}\\
\mathbf{if}\;{t\_2}^{2} + {t\_0}^{2} \geq \mathsf{fma}\left({dY.v}^{2}, {\left(\left\lfloorh\right\rfloor\right)}^{2}, {t\_1}^{2}\right):\\
\;\;\;\;\frac{t\_2}{t\_3}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{t\_3}\\
\end{array}
\end{array}
Initial program 77.1%
Simplified77.4%
pow277.4%
Applied egg-rr77.4%
Applied egg-rr77.5%
Applied egg-rr74.3%
expm1-def74.8%
expm1-log1p77.5%
*-commutative77.5%
*-commutative77.5%
Simplified77.5%
Taylor expanded in w around 0 77.5%
fma-udef77.5%
unpow277.5%
+-commutative77.5%
*-commutative77.5%
*-commutative77.5%
fma-def77.5%
unpow277.5%
+-commutative77.5%
fma-def77.5%
Simplified77.5%
Final simplification77.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.v (floor h)))
(t_1 (* (floor w) dY.u))
(t_2 (* t_1 t_1))
(t_3 (* dX.u (floor w)))
(t_4 (+ (* t_3 t_3) (* t_0 t_0)))
(t_5 (* (floor h) dY.v))
(t_6 (+ t_2 (* t_5 t_5))))
(if (>= t_4 t_6)
(* t_3 (/ 1.0 (sqrt (fmax t_4 t_6))))
(*
t_1
(/
1.0
(sqrt (fmax t_4 (+ t_2 (* dY.v (* dY.v (pow (floor h) 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 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = t_1 * t_1;
float t_3 = dX_46_u * floorf(w);
float t_4 = (t_3 * t_3) + (t_0 * t_0);
float t_5 = floorf(h) * dY_46_v;
float t_6 = t_2 + (t_5 * t_5);
float tmp;
if (t_4 >= t_6) {
tmp = t_3 * (1.0f / sqrtf(fmaxf(t_4, t_6)));
} else {
tmp = t_1 * (1.0f / sqrtf(fmaxf(t_4, (t_2 + (dY_46_v * (dY_46_v * powf(floorf(h), 2.0f)))))));
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(t_1 * t_1) t_3 = Float32(dX_46_u * floor(w)) t_4 = Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) t_5 = Float32(floor(h) * dY_46_v) t_6 = Float32(t_2 + Float32(t_5 * t_5)) tmp = Float32(0.0) if (t_4 >= t_6) tmp = Float32(t_3 * Float32(Float32(1.0) / sqrt(((t_4 != t_4) ? t_6 : ((t_6 != t_6) ? t_4 : max(t_4, t_6)))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / sqrt(((t_4 != t_4) ? Float32(t_2 + Float32(dY_46_v * Float32(dY_46_v * (floor(h) ^ Float32(2.0))))) : ((Float32(t_2 + Float32(dY_46_v * Float32(dY_46_v * (floor(h) ^ Float32(2.0))))) != Float32(t_2 + Float32(dY_46_v * Float32(dY_46_v * (floor(h) ^ Float32(2.0)))))) ? t_4 : max(t_4, Float32(t_2 + Float32(dY_46_v * Float32(dY_46_v * (floor(h) ^ Float32(2.0))))))))))); 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 = dX_46_v * floor(h); t_1 = floor(w) * dY_46_u; t_2 = t_1 * t_1; t_3 = dX_46_u * floor(w); t_4 = (t_3 * t_3) + (t_0 * t_0); t_5 = floor(h) * dY_46_v; t_6 = t_2 + (t_5 * t_5); tmp = single(0.0); if (t_4 >= t_6) tmp = t_3 * (single(1.0) / sqrt(max(t_4, t_6))); else tmp = t_1 * (single(1.0) / sqrt(max(t_4, (t_2 + (dY_46_v * (dY_46_v * (floor(h) ^ single(2.0)))))))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := t\_1 \cdot t\_1\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := t\_3 \cdot t\_3 + t\_0 \cdot t\_0\\
t_5 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_6 := t\_2 + t\_5 \cdot t\_5\\
\mathbf{if}\;t\_4 \geq t\_6:\\
\;\;\;\;t\_3 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_4, t\_6\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_4, t\_2 + dY.v \cdot \left(dY.v \cdot {\left(\left\lfloorh\right\rfloor\right)}^{2}\right)\right)}}\\
\end{array}
\end{array}
Initial program 77.1%
add-cube-cbrt77.0%
pow377.0%
cbrt-prod76.9%
pow276.9%
Applied egg-rr76.9%
pow-pow76.9%
pow1/360.7%
pow-pow77.1%
metadata-eval77.1%
metadata-eval77.1%
pow-prod-down77.1%
unpow277.1%
associate-*r*77.2%
Applied egg-rr77.2%
Final simplification77.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.v (floor h)))
(t_1 (* (floor w) dY.u))
(t_2 (* dX.u (floor w)))
(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))))
(if (>= t_3 t_5)
(* t_2 (/ 1.0 (sqrt (fmax t_3 t_5))))
(*
t_1
(/
1.0
(pow
(fmax (pow (hypot t_0 t_2) 2.0) (pow (hypot t_1 t_4) 2.0))
0.5))))))
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 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = dX_46_u * floorf(w);
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 tmp;
if (t_3 >= t_5) {
tmp = t_2 * (1.0f / sqrtf(fmaxf(t_3, t_5)));
} else {
tmp = t_1 * (1.0f / powf(fmaxf(powf(hypotf(t_0, t_2), 2.0f), powf(hypotf(t_1, t_4), 2.0f)), 0.5f));
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(dX_46_u * floor(w)) 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)) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_2 * Float32(Float32(1.0) / sqrt(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(t_3, t_5)))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / ((((hypot(t_0, t_2) ^ Float32(2.0)) != (hypot(t_0, t_2) ^ Float32(2.0))) ? (hypot(t_1, t_4) ^ Float32(2.0)) : (((hypot(t_1, t_4) ^ Float32(2.0)) != (hypot(t_1, t_4) ^ Float32(2.0))) ? (hypot(t_0, t_2) ^ Float32(2.0)) : max((hypot(t_0, t_2) ^ Float32(2.0)), (hypot(t_1, t_4) ^ Float32(2.0))))) ^ Float32(0.5)))); 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 = dX_46_v * floor(h); t_1 = floor(w) * dY_46_u; t_2 = dX_46_u * floor(w); 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); tmp = single(0.0); if (t_3 >= t_5) tmp = t_2 * (single(1.0) / sqrt(max(t_3, t_5))); else tmp = t_1 * (single(1.0) / (max((hypot(t_0, t_2) ^ single(2.0)), (hypot(t_1, t_4) ^ single(2.0))) ^ single(0.5))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_2 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{{\left(\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, t\_2\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_1, t\_4\right)\right)}^{2}\right)\right)}^{0.5}}\\
\end{array}
\end{array}
Initial program 77.1%
Taylor expanded in h around 0 77.1%
*-commutative77.1%
Simplified77.1%
Applied egg-rr77.2%
Final simplification77.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.u (floor w)))
(t_1 (* (floor w) dY.u))
(t_2 (* dX.v (floor h)))
(t_3 (* t_2 t_2))
(t_4 (* (floor h) dY.v))
(t_5 (+ (* t_1 t_1) (* t_4 t_4))))
(if (>= (+ t_3 (pow t_0 2.0)) t_5)
(* t_0 (/ 1.0 (sqrt (fmax (+ t_3 (* dX.u (* (floor w) t_0))) t_5))))
(* t_1 (/ 1.0 (sqrt (fmax (+ (* t_0 t_0) t_3) 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 = dX_46_u * floorf(w);
float t_1 = floorf(w) * dY_46_u;
float t_2 = dX_46_v * floorf(h);
float t_3 = t_2 * t_2;
float t_4 = floorf(h) * dY_46_v;
float t_5 = (t_1 * t_1) + (t_4 * t_4);
float tmp;
if ((t_3 + powf(t_0, 2.0f)) >= t_5) {
tmp = t_0 * (1.0f / sqrtf(fmaxf((t_3 + (dX_46_u * (floorf(w) * t_0))), t_5)));
} else {
tmp = t_1 * (1.0f / sqrtf(fmaxf(((t_0 * t_0) + t_3), t_5)));
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_u * floor(w)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(dX_46_v * floor(h)) t_3 = Float32(t_2 * t_2) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(Float32(t_1 * t_1) + Float32(t_4 * t_4)) tmp = Float32(0.0) if (Float32(t_3 + (t_0 ^ Float32(2.0))) >= t_5) tmp = Float32(t_0 * Float32(Float32(1.0) / sqrt(((Float32(t_3 + Float32(dX_46_u * Float32(floor(w) * t_0))) != Float32(t_3 + Float32(dX_46_u * Float32(floor(w) * t_0)))) ? t_5 : ((t_5 != t_5) ? Float32(t_3 + Float32(dX_46_u * Float32(floor(w) * t_0))) : max(Float32(t_3 + Float32(dX_46_u * Float32(floor(w) * t_0))), t_5)))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / sqrt(((Float32(Float32(t_0 * t_0) + t_3) != Float32(Float32(t_0 * t_0) + t_3)) ? t_5 : ((t_5 != t_5) ? Float32(Float32(t_0 * t_0) + t_3) : max(Float32(Float32(t_0 * t_0) + t_3), t_5)))))); 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 = dX_46_u * floor(w); t_1 = floor(w) * dY_46_u; t_2 = dX_46_v * floor(h); t_3 = t_2 * t_2; t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); tmp = single(0.0); if ((t_3 + (t_0 ^ single(2.0))) >= t_5) tmp = t_0 * (single(1.0) / sqrt(max((t_3 + (dX_46_u * (floor(w) * t_0))), t_5))); else tmp = t_1 * (single(1.0) / sqrt(max(((t_0 * t_0) + t_3), t_5))); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_3 := t\_2 \cdot t\_2\\
t_4 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
\mathbf{if}\;t\_3 + {t\_0}^{2} \geq t\_5:\\
\;\;\;\;t\_0 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_3 + dX.u \cdot \left(\left\lfloorw\right\rfloor \cdot t\_0\right), t\_5\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_0 \cdot t\_0 + t\_3, t\_5\right)}}\\
\end{array}
\end{array}
Initial program 77.1%
pow277.1%
Applied egg-rr77.1%
add-cube-cbrt77.1%
pow377.1%
cbrt-prod76.9%
pow276.9%
Applied egg-rr76.9%
pow-pow76.9%
pow1/359.8%
pow-pow77.1%
metadata-eval77.1%
metadata-eval77.1%
pow277.1%
associate-*r*77.1%
Applied egg-rr77.1%
Final simplification77.1%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* dX.v (floor h)))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* t_2 t_2))
(t_4 (* dX.u (floor w)))
(t_5
(/
1.0
(sqrt (fmax (+ (* t_4 t_4) (* t_0 t_0)) (+ (* t_1 t_1) t_3))))))
(if (>= (+ (pow t_4 2.0) (pow t_0 2.0)) (+ (pow t_1 2.0) t_3))
(* t_4 t_5)
(* t_1 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 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = t_2 * t_2;
float t_4 = dX_46_u * floorf(w);
float t_5 = 1.0f / sqrtf(fmaxf(((t_4 * t_4) + (t_0 * t_0)), ((t_1 * t_1) + t_3)));
float tmp;
if ((powf(t_4, 2.0f) + powf(t_0, 2.0f)) >= (powf(t_1, 2.0f) + t_3)) {
tmp = t_4 * t_5;
} else {
tmp = t_1 * t_5;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dX_46_v * floor(h)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(t_2 * t_2) t_4 = Float32(dX_46_u * floor(w)) t_5 = Float32(Float32(1.0) / sqrt(((Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)) != Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0))) ? Float32(Float32(t_1 * t_1) + t_3) : ((Float32(Float32(t_1 * t_1) + t_3) != Float32(Float32(t_1 * t_1) + t_3)) ? Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)) : max(Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)), Float32(Float32(t_1 * t_1) + t_3)))))) tmp = Float32(0.0) if (Float32((t_4 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) >= Float32((t_1 ^ Float32(2.0)) + t_3)) tmp = Float32(t_4 * t_5); else tmp = Float32(t_1 * t_5); 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 = dX_46_v * floor(h); t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = t_2 * t_2; t_4 = dX_46_u * floor(w); t_5 = single(1.0) / sqrt(max(((t_4 * t_4) + (t_0 * t_0)), ((t_1 * t_1) + t_3))); tmp = single(0.0); if (((t_4 ^ single(2.0)) + (t_0 ^ single(2.0))) >= ((t_1 ^ single(2.0)) + t_3)) tmp = t_4 * t_5; else tmp = t_1 * t_5; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := t\_2 \cdot t\_2\\
t_4 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_5 := \frac{1}{\sqrt{\mathsf{max}\left(t\_4 \cdot t\_4 + t\_0 \cdot t\_0, t\_1 \cdot t\_1 + t\_3\right)}}\\
\mathbf{if}\;{t\_4}^{2} + {t\_0}^{2} \geq {t\_1}^{2} + t\_3:\\
\;\;\;\;t\_4 \cdot t\_5\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot t\_5\\
\end{array}
\end{array}
Initial program 77.1%
pow277.1%
Applied egg-rr77.1%
pow277.4%
Applied egg-rr77.1%
Taylor expanded in w around 0 77.1%
*-commutative77.1%
unpow277.1%
unpow277.1%
swap-sqr77.1%
unpow277.1%
Simplified77.1%
Final simplification77.1%
herbie shell --seed 2024027
(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))))