
(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_0) (* t_6 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(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_0;
} else {
tmp = t_6 * 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(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_0); else tmp = Float32(t_6 * 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(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_0; else tmp = t_6 * t_4; 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\_0\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_4\\
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 4 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_0) (* t_6 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(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_0;
} else {
tmp = t_6 * 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(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_0); else tmp = Float32(t_6 * 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(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_0; else tmp = t_6 * t_4; 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\_0\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_4\\
\end{array}
\end{array}
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dY.v))
(t_2 (pow (hypot t_0 t_1) 2.0))
(t_3 (* dX.v (floor h)))
(t_4 (pow (hypot (* dX.u (floor w)) t_3) 2.0)))
(if (>= t_4 t_2)
(pow (/ (sqrt (fmax t_4 t_2)) t_3) -1.0)
(/ t_1 (pow (fmax t_4 (pow (hypot t_1 t_0) 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 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = powf(hypotf(t_0, t_1), 2.0f);
float t_3 = dX_46_v * floorf(h);
float t_4 = powf(hypotf((dX_46_u * floorf(w)), t_3), 2.0f);
float tmp;
if (t_4 >= t_2) {
tmp = powf((sqrtf(fmaxf(t_4, t_2)) / t_3), -1.0f);
} else {
tmp = t_1 / powf(fmaxf(t_4, powf(hypotf(t_1, t_0), 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(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = hypot(t_0, t_1) ^ Float32(2.0) t_3 = Float32(dX_46_v * floor(h)) t_4 = hypot(Float32(dX_46_u * floor(w)), t_3) ^ Float32(2.0) tmp = Float32(0.0) if (t_4 >= t_2) tmp = Float32(sqrt(((t_4 != t_4) ? t_2 : ((t_2 != t_2) ? t_4 : max(t_4, t_2)))) / t_3) ^ Float32(-1.0); else tmp = Float32(t_1 / (((t_4 != t_4) ? (hypot(t_1, t_0) ^ Float32(2.0)) : (((hypot(t_1, t_0) ^ Float32(2.0)) != (hypot(t_1, t_0) ^ Float32(2.0))) ? t_4 : max(t_4, (hypot(t_1, t_0) ^ 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 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = hypot(t_0, t_1) ^ single(2.0); t_3 = dX_46_v * floor(h); t_4 = hypot((dX_46_u * floor(w)), t_3) ^ single(2.0); tmp = single(0.0); if (t_4 >= t_2) tmp = (sqrt(max(t_4, t_2)) / t_3) ^ single(-1.0); else tmp = t_1 / (max(t_4, (hypot(t_1, t_0) ^ single(2.0))) ^ single(0.5)); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_1 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_2 := {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}\\
t_3 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_4 := {\left(\mathsf{hypot}\left(dX.u \cdot \left\lfloorw\right\rfloor, t\_3\right)\right)}^{2}\\
\mathbf{if}\;t\_4 \geq t\_2:\\
\;\;\;\;{\left(\frac{\sqrt{\mathsf{max}\left(t\_4, t\_2\right)}}{t\_3}\right)}^{-1}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{{\left(\mathsf{max}\left(t\_4, {\left(\mathsf{hypot}\left(t\_1, t\_0\right)\right)}^{2}\right)\right)}^{0.5}}\\
\end{array}
\end{array}
Initial program 76.6%
Simplified76.7%
Applied egg-rr76.8%
Taylor expanded in w around 0 76.8%
Simplified76.8%
Applied egg-rr76.9%
Final simplification76.9%
(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 (* dX.u (floor w)))
(t_4
(/
1.0
(pow
(fmax (pow (hypot t_3 t_0) 2.0) (pow (hypot t_1 t_2) 2.0))
0.5))))
(if (>= (+ (pow t_3 2.0) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2)))
(* t_0 t_4)
(* t_2 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 = dX_46_v * floorf(h);
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = dX_46_u * floorf(w);
float t_4 = 1.0f / powf(fmaxf(powf(hypotf(t_3, t_0), 2.0f), powf(hypotf(t_1, t_2), 2.0f)), 0.5f);
float tmp;
if ((powf(t_3, 2.0f) + (t_0 * t_0)) >= ((t_1 * t_1) + (t_2 * t_2))) {
tmp = t_0 * t_4;
} else {
tmp = t_2 * t_4;
}
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(dX_46_u * floor(w)) t_4 = Float32(Float32(1.0) / ((((hypot(t_3, t_0) ^ Float32(2.0)) != (hypot(t_3, t_0) ^ Float32(2.0))) ? (hypot(t_1, t_2) ^ Float32(2.0)) : (((hypot(t_1, t_2) ^ Float32(2.0)) != (hypot(t_1, t_2) ^ Float32(2.0))) ? (hypot(t_3, t_0) ^ Float32(2.0)) : max((hypot(t_3, t_0) ^ Float32(2.0)), (hypot(t_1, t_2) ^ Float32(2.0))))) ^ Float32(0.5))) tmp = Float32(0.0) if (Float32((t_3 ^ Float32(2.0)) + Float32(t_0 * t_0)) >= Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) tmp = Float32(t_0 * t_4); else tmp = Float32(t_2 * 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 = dX_46_v * floor(h); t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = dX_46_u * floor(w); t_4 = single(1.0) / (max((hypot(t_3, t_0) ^ single(2.0)), (hypot(t_1, t_2) ^ single(2.0))) ^ single(0.5)); tmp = single(0.0); if (((t_3 ^ single(2.0)) + (t_0 * t_0)) >= ((t_1 * t_1) + (t_2 * t_2))) tmp = t_0 * t_4; else tmp = t_2 * t_4; 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 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := \frac{1}{{\left(\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_3, t\_0\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_1, t\_2\right)\right)}^{2}\right)\right)}^{0.5}}\\
\mathbf{if}\;{t\_3}^{2} + t\_0 \cdot t\_0 \geq t\_1 \cdot t\_1 + t\_2 \cdot t\_2:\\
\;\;\;\;t\_0 \cdot t\_4\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot t\_4\\
\end{array}
\end{array}
Initial program 76.6%
pow276.6%
Applied egg-rr76.6%
Applied egg-rr76.7%
Applied egg-rr76.7%
Final simplification76.7%
(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 (* (floor h) dY.v))
(t_3 (* dX.v (floor h)))
(t_4 (pow (hypot t_0 t_3) 2.0))
(t_5 (pow (hypot t_1 t_2) 2.0))
(t_6 (pow (/ (sqrt (fmax t_4 t_5)) t_3) -1.0))
(t_7 (/ t_2 (pow (fmax t_4 (pow (hypot t_2 t_1) 2.0)) 0.5))))
(if (<= dX.u 60000.0)
(if (>= (pow t_3 2.0) t_5) t_6 t_7)
(if (>= (pow t_0 2.0) t_5) t_6 t_7))))
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 = floorf(h) * dY_46_v;
float t_3 = dX_46_v * floorf(h);
float t_4 = powf(hypotf(t_0, t_3), 2.0f);
float t_5 = powf(hypotf(t_1, t_2), 2.0f);
float t_6 = powf((sqrtf(fmaxf(t_4, t_5)) / t_3), -1.0f);
float t_7 = t_2 / powf(fmaxf(t_4, powf(hypotf(t_2, t_1), 2.0f)), 0.5f);
float tmp_1;
if (dX_46_u <= 60000.0f) {
float tmp_2;
if (powf(t_3, 2.0f) >= t_5) {
tmp_2 = t_6;
} else {
tmp_2 = t_7;
}
tmp_1 = tmp_2;
} else if (powf(t_0, 2.0f) >= t_5) {
tmp_1 = t_6;
} else {
tmp_1 = t_7;
}
return tmp_1;
}
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(floor(h) * dY_46_v) t_3 = Float32(dX_46_v * floor(h)) t_4 = hypot(t_0, t_3) ^ Float32(2.0) t_5 = hypot(t_1, t_2) ^ Float32(2.0) t_6 = Float32(sqrt(((t_4 != t_4) ? t_5 : ((t_5 != t_5) ? t_4 : max(t_4, t_5)))) / t_3) ^ Float32(-1.0) t_7 = Float32(t_2 / (((t_4 != t_4) ? (hypot(t_2, t_1) ^ Float32(2.0)) : (((hypot(t_2, t_1) ^ Float32(2.0)) != (hypot(t_2, t_1) ^ Float32(2.0))) ? t_4 : max(t_4, (hypot(t_2, t_1) ^ Float32(2.0))))) ^ Float32(0.5))) tmp_1 = Float32(0.0) if (dX_46_u <= Float32(60000.0)) tmp_2 = Float32(0.0) if ((t_3 ^ Float32(2.0)) >= t_5) tmp_2 = t_6; else tmp_2 = t_7; end tmp_1 = tmp_2; elseif ((t_0 ^ Float32(2.0)) >= t_5) tmp_1 = t_6; else tmp_1 = t_7; 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 = dX_46_u * floor(w); t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = dX_46_v * floor(h); t_4 = hypot(t_0, t_3) ^ single(2.0); t_5 = hypot(t_1, t_2) ^ single(2.0); t_6 = (sqrt(max(t_4, t_5)) / t_3) ^ single(-1.0); t_7 = t_2 / (max(t_4, (hypot(t_2, t_1) ^ single(2.0))) ^ single(0.5)); tmp_2 = single(0.0); if (dX_46_u <= single(60000.0)) tmp_3 = single(0.0); if ((t_3 ^ single(2.0)) >= t_5) tmp_3 = t_6; else tmp_3 = t_7; end tmp_2 = tmp_3; elseif ((t_0 ^ single(2.0)) >= t_5) tmp_2 = t_6; else tmp_2 = t_7; end tmp_4 = tmp_2; 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 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_4 := {\left(\mathsf{hypot}\left(t\_0, t\_3\right)\right)}^{2}\\
t_5 := {\left(\mathsf{hypot}\left(t\_1, t\_2\right)\right)}^{2}\\
t_6 := {\left(\frac{\sqrt{\mathsf{max}\left(t\_4, t\_5\right)}}{t\_3}\right)}^{-1}\\
t_7 := \frac{t\_2}{{\left(\mathsf{max}\left(t\_4, {\left(\mathsf{hypot}\left(t\_2, t\_1\right)\right)}^{2}\right)\right)}^{0.5}}\\
\mathbf{if}\;dX.u \leq 60000:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;{t\_3}^{2} \geq t\_5:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_7\\
\end{array}\\
\mathbf{elif}\;{t\_0}^{2} \geq t\_5:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_7\\
\end{array}
\end{array}
if dX.u < 6e4Initial program 81.7%
Simplified81.7%
Applied egg-rr81.8%
Taylor expanded in w around 0 81.8%
Simplified81.8%
Applied egg-rr81.9%
Taylor expanded in dX.u around 0 75.5%
*-commutative75.5%
unpow275.5%
unpow275.5%
swap-sqr75.5%
unpow275.5%
*-commutative75.5%
Simplified75.5%
if 6e4 < dX.u Initial program 56.5%
Simplified56.5%
Applied egg-rr56.8%
Taylor expanded in w around 0 56.8%
Simplified56.8%
Applied egg-rr56.8%
Taylor expanded in dX.u around inf 54.9%
*-commutative54.9%
unpow254.9%
unpow254.9%
swap-sqr54.9%
unpow254.9%
*-commutative54.9%
Simplified54.9%
Final simplification71.4%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dY.v))
(t_2 (* dX.u (floor w)))
(t_3 (* dX.v (floor h)))
(t_4 (pow (hypot t_2 t_3) 2.0))
(t_5 (pow (hypot t_0 t_1) 2.0)))
(if (>= (pow t_2 2.0) t_5)
(pow (/ (sqrt (fmax t_4 t_5)) t_3) -1.0)
(/ t_1 (pow (fmax t_4 (pow (hypot t_1 t_0) 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 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = dX_46_u * floorf(w);
float t_3 = dX_46_v * floorf(h);
float t_4 = powf(hypotf(t_2, t_3), 2.0f);
float t_5 = powf(hypotf(t_0, t_1), 2.0f);
float tmp;
if (powf(t_2, 2.0f) >= t_5) {
tmp = powf((sqrtf(fmaxf(t_4, t_5)) / t_3), -1.0f);
} else {
tmp = t_1 / powf(fmaxf(t_4, powf(hypotf(t_1, t_0), 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(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(dX_46_u * floor(w)) t_3 = Float32(dX_46_v * floor(h)) t_4 = hypot(t_2, t_3) ^ Float32(2.0) t_5 = hypot(t_0, t_1) ^ Float32(2.0) tmp = Float32(0.0) if ((t_2 ^ Float32(2.0)) >= t_5) tmp = Float32(sqrt(((t_4 != t_4) ? t_5 : ((t_5 != t_5) ? t_4 : max(t_4, t_5)))) / t_3) ^ Float32(-1.0); else tmp = Float32(t_1 / (((t_4 != t_4) ? (hypot(t_1, t_0) ^ Float32(2.0)) : (((hypot(t_1, t_0) ^ Float32(2.0)) != (hypot(t_1, t_0) ^ Float32(2.0))) ? t_4 : max(t_4, (hypot(t_1, t_0) ^ 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 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = dX_46_u * floor(w); t_3 = dX_46_v * floor(h); t_4 = hypot(t_2, t_3) ^ single(2.0); t_5 = hypot(t_0, t_1) ^ single(2.0); tmp = single(0.0); if ((t_2 ^ single(2.0)) >= t_5) tmp = (sqrt(max(t_4, t_5)) / t_3) ^ single(-1.0); else tmp = t_1 / (max(t_4, (hypot(t_1, t_0) ^ single(2.0))) ^ single(0.5)); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_1 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_2 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_3 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_4 := {\left(\mathsf{hypot}\left(t\_2, t\_3\right)\right)}^{2}\\
t_5 := {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}\\
\mathbf{if}\;{t\_2}^{2} \geq t\_5:\\
\;\;\;\;{\left(\frac{\sqrt{\mathsf{max}\left(t\_4, t\_5\right)}}{t\_3}\right)}^{-1}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{{\left(\mathsf{max}\left(t\_4, {\left(\mathsf{hypot}\left(t\_1, t\_0\right)\right)}^{2}\right)\right)}^{0.5}}\\
\end{array}
\end{array}
Initial program 76.6%
Simplified76.7%
Applied egg-rr76.8%
Taylor expanded in w around 0 76.8%
Simplified76.8%
Applied egg-rr76.9%
Taylor expanded in dX.u around inf 63.7%
*-commutative63.7%
unpow263.7%
unpow263.7%
swap-sqr63.7%
unpow263.7%
*-commutative63.7%
Simplified63.7%
Final simplification63.7%
herbie shell --seed 2024075
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:name "Anisotropic x16 LOD (line direction, v)"
: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 h) dX.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 h) dY.v))))