
(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 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor 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 w) dY.u))
(t_1 (fma t_0 t_0 (* (floor h) (* dY.v (* (floor h) dY.v)))))
(t_2 (* (floor w) dX.u))
(t_3 (* (floor h) dX.v))
(t_4 (fma t_2 t_2 (* t_3 t_3)))
(t_5 (sqrt (fmax t_4 t_1))))
(if (>= t_4 t_1) (/ t_2 t_5) (* t_0 (/ 1.0 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(w) * dY_46_u;
float t_1 = fmaf(t_0, t_0, (floorf(h) * (dY_46_v * (floorf(h) * dY_46_v))));
float t_2 = floorf(w) * dX_46_u;
float t_3 = floorf(h) * dX_46_v;
float t_4 = fmaf(t_2, t_2, (t_3 * t_3));
float t_5 = sqrtf(fmaxf(t_4, t_1));
float tmp;
if (t_4 >= t_1) {
tmp = t_2 / t_5;
} else {
tmp = t_0 * (1.0f / t_5);
}
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 = fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * Float32(floor(h) * dY_46_v)))) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(floor(h) * dX_46_v) t_4 = fma(t_2, t_2, Float32(t_3 * t_3)) t_5 = sqrt(((t_4 != t_4) ? t_1 : ((t_1 != t_1) ? t_4 : max(t_4, t_1)))) tmp = Float32(0.0) if (t_4 >= t_1) tmp = Float32(t_2 / t_5); else tmp = Float32(t_0 * Float32(Float32(1.0) / t_5)); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_1 := \mathsf{fma}\left(t\_0, t\_0, \left\lfloor h\right\rfloor \cdot \left(dY.v \cdot \left(\left\lfloor h\right\rfloor \cdot dY.v\right)\right)\right)\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_4 := \mathsf{fma}\left(t\_2, t\_2, t\_3 \cdot t\_3\right)\\
t_5 := \sqrt{\mathsf{max}\left(t\_4, t\_1\right)}\\
\mathbf{if}\;t\_4 \geq t\_1:\\
\;\;\;\;\frac{t\_2}{t\_5}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \frac{1}{t\_5}\\
\end{array}
\end{array}
Initial program 78.5%
Simplified78.7%
Final simplification78.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (pow (hypot t_0 (* (floor h) dY.v)) 2.0))
(t_2 (pow (hypot (* (floor w) dX.u) (* (floor h) dX.v)) 2.0))
(t_3 (sqrt (fmax t_2 t_1))))
(if (>= t_2 t_1) (* dX.u (/ (floor w) t_3)) (/ t_0 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 = floorf(w) * dY_46_u;
float t_1 = powf(hypotf(t_0, (floorf(h) * dY_46_v)), 2.0f);
float t_2 = powf(hypotf((floorf(w) * dX_46_u), (floorf(h) * dX_46_v)), 2.0f);
float t_3 = sqrtf(fmaxf(t_2, t_1));
float tmp;
if (t_2 >= t_1) {
tmp = dX_46_u * (floorf(w) / t_3);
} else {
tmp = t_0 / t_3;
}
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 = hypot(t_0, Float32(floor(h) * dY_46_v)) ^ Float32(2.0) t_2 = hypot(Float32(floor(w) * dX_46_u), Float32(floor(h) * dX_46_v)) ^ Float32(2.0) t_3 = sqrt(((t_2 != t_2) ? t_1 : ((t_1 != t_1) ? t_2 : max(t_2, t_1)))) tmp = Float32(0.0) if (t_2 >= t_1) tmp = Float32(dX_46_u * Float32(floor(w) / t_3)); else tmp = Float32(t_0 / t_3); 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 = hypot(t_0, (floor(h) * dY_46_v)) ^ single(2.0); t_2 = hypot((floor(w) * dX_46_u), (floor(h) * dX_46_v)) ^ single(2.0); t_3 = sqrt(max(t_2, t_1)); tmp = single(0.0); if (t_2 >= t_1) tmp = dX_46_u * (floor(w) / t_3); else tmp = t_0 / t_3; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_1 := {\left(\mathsf{hypot}\left(t\_0, \left\lfloor h\right\rfloor \cdot dY.v\right)\right)}^{2}\\
t_2 := {\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, \left\lfloor h\right\rfloor \cdot dX.v\right)\right)}^{2}\\
t_3 := \sqrt{\mathsf{max}\left(t\_2, t\_1\right)}\\
\mathbf{if}\;t\_2 \geq t\_1:\\
\;\;\;\;dX.u \cdot \frac{\left\lfloor w\right\rfloor }{t\_3}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_0}{t\_3}\\
\end{array}
\end{array}
Initial program 78.5%
Simplified78.7%
Applied egg-rr78.5%
Simplified78.6%
Taylor expanded in w around 0 78.2%
Simplified78.6%
Final simplification78.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dY.v))
(t_1 (* (floor w) dY.u))
(t_2 (pow (hypot t_1 t_0) 2.0))
(t_3 (pow (hypot t_0 t_1) 2.0))
(t_4 (* (floor w) dX.u))
(t_5 (* (floor h) dX.v))
(t_6 (pow (hypot t_4 t_5) 2.0))
(t_7 (sqrt (fmax t_6 t_2))))
(if (<= dX.v 2.0)
(if (>= (pow t_4 2.0) t_3)
(/ t_4 t_7)
(* (floor w) (* dY.u (sqrt (/ 1.0 (fmax t_6 t_3))))))
(if (>= (pow t_5 2.0) t_2)
(* dX.u (/ (floor w) t_7))
(/ t_1 (sqrt (fmax (pow (* dX.v (- (floor h))) 2.0) 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) * dY_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = powf(hypotf(t_1, t_0), 2.0f);
float t_3 = powf(hypotf(t_0, t_1), 2.0f);
float t_4 = floorf(w) * dX_46_u;
float t_5 = floorf(h) * dX_46_v;
float t_6 = powf(hypotf(t_4, t_5), 2.0f);
float t_7 = sqrtf(fmaxf(t_6, t_2));
float tmp_1;
if (dX_46_v <= 2.0f) {
float tmp_2;
if (powf(t_4, 2.0f) >= t_3) {
tmp_2 = t_4 / t_7;
} else {
tmp_2 = floorf(w) * (dY_46_u * sqrtf((1.0f / fmaxf(t_6, t_3))));
}
tmp_1 = tmp_2;
} else if (powf(t_5, 2.0f) >= t_2) {
tmp_1 = dX_46_u * (floorf(w) / t_7);
} else {
tmp_1 = t_1 / sqrtf(fmaxf(powf((dX_46_v * -floorf(h)), 2.0f), t_2));
}
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) * dY_46_v) t_1 = Float32(floor(w) * dY_46_u) t_2 = hypot(t_1, t_0) ^ Float32(2.0) t_3 = hypot(t_0, t_1) ^ Float32(2.0) t_4 = Float32(floor(w) * dX_46_u) t_5 = Float32(floor(h) * dX_46_v) t_6 = hypot(t_4, t_5) ^ Float32(2.0) t_7 = sqrt(((t_6 != t_6) ? t_2 : ((t_2 != t_2) ? t_6 : max(t_6, t_2)))) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(2.0)) tmp_2 = Float32(0.0) if ((t_4 ^ Float32(2.0)) >= t_3) tmp_2 = Float32(t_4 / t_7); else tmp_2 = Float32(floor(w) * Float32(dY_46_u * sqrt(Float32(Float32(1.0) / ((t_6 != t_6) ? t_3 : ((t_3 != t_3) ? t_6 : max(t_6, t_3))))))); end tmp_1 = tmp_2; elseif ((t_5 ^ Float32(2.0)) >= t_2) tmp_1 = Float32(dX_46_u * Float32(floor(w) / t_7)); else tmp_1 = Float32(t_1 / sqrt((((Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0)) != (Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0))) ? t_2 : ((t_2 != t_2) ? (Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0)) : max((Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0)), t_2))))); 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) * dY_46_v; t_1 = floor(w) * dY_46_u; t_2 = hypot(t_1, t_0) ^ single(2.0); t_3 = hypot(t_0, t_1) ^ single(2.0); t_4 = floor(w) * dX_46_u; t_5 = floor(h) * dX_46_v; t_6 = hypot(t_4, t_5) ^ single(2.0); t_7 = sqrt(max(t_6, t_2)); tmp_2 = single(0.0); if (dX_46_v <= single(2.0)) tmp_3 = single(0.0); if ((t_4 ^ single(2.0)) >= t_3) tmp_3 = t_4 / t_7; else tmp_3 = floor(w) * (dY_46_u * sqrt((single(1.0) / max(t_6, t_3)))); end tmp_2 = tmp_3; elseif ((t_5 ^ single(2.0)) >= t_2) tmp_2 = dX_46_u * (floor(w) / t_7); else tmp_2 = t_1 / sqrt(max(((dX_46_v * -floor(h)) ^ single(2.0)), t_2)); end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := {\left(\mathsf{hypot}\left(t\_1, t\_0\right)\right)}^{2}\\
t_3 := {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_6 := {\left(\mathsf{hypot}\left(t\_4, t\_5\right)\right)}^{2}\\
t_7 := \sqrt{\mathsf{max}\left(t\_6, t\_2\right)}\\
\mathbf{if}\;dX.v \leq 2:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;{t\_4}^{2} \geq t\_3:\\
\;\;\;\;\frac{t\_4}{t\_7}\\
\mathbf{else}:\\
\;\;\;\;\left\lfloor w\right\rfloor \cdot \left(dY.u \cdot \sqrt{\frac{1}{\mathsf{max}\left(t\_6, t\_3\right)}}\right)\\
\end{array}\\
\mathbf{elif}\;{t\_5}^{2} \geq t\_2:\\
\;\;\;\;dX.u \cdot \frac{\left\lfloor w\right\rfloor }{t\_7}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{\sqrt{\mathsf{max}\left({\left(dX.v \cdot \left(-\left\lfloor h\right\rfloor \right)\right)}^{2}, t\_2\right)}}\\
\end{array}
\end{array}
if dX.v < 2Initial program 78.3%
Simplified78.3%
Taylor expanded in w around 0 78.0%
Simplified78.0%
Applied egg-rr78.4%
Taylor expanded in dX.u around inf 69.4%
*-commutative69.4%
unpow269.4%
unpow269.4%
swap-sqr69.4%
unpow269.4%
*-commutative69.4%
Simplified69.4%
if 2 < dX.v Initial program 78.9%
Simplified79.2%
Applied egg-rr79.1%
Simplified79.1%
Taylor expanded in w around 0 78.7%
Simplified79.0%
Taylor expanded in dX.u around 0 78.0%
Taylor expanded in dX.v around -inf 78.0%
mul-1-neg78.0%
distribute-rgt-neg-in78.0%
Simplified78.0%
Final simplification72.1%
(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) dX.v))
(t_2 (pow (hypot t_0 (* (floor h) dY.v)) 2.0)))
(if (>= (pow t_1 2.0) t_2)
(*
dX.u
(/ (floor w) (sqrt (fmax (pow (hypot (* (floor w) dX.u) t_1) 2.0) t_2))))
(/ t_0 (sqrt (fmax (pow (* dX.v (- (floor h))) 2.0) 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(w) * dY_46_u;
float t_1 = floorf(h) * dX_46_v;
float t_2 = powf(hypotf(t_0, (floorf(h) * dY_46_v)), 2.0f);
float tmp;
if (powf(t_1, 2.0f) >= t_2) {
tmp = dX_46_u * (floorf(w) / sqrtf(fmaxf(powf(hypotf((floorf(w) * dX_46_u), t_1), 2.0f), t_2)));
} else {
tmp = t_0 / sqrtf(fmaxf(powf((dX_46_v * -floorf(h)), 2.0f), t_2));
}
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) * dX_46_v) t_2 = hypot(t_0, Float32(floor(h) * dY_46_v)) ^ Float32(2.0) tmp = Float32(0.0) if ((t_1 ^ Float32(2.0)) >= t_2) tmp = Float32(dX_46_u * Float32(floor(w) / sqrt((((hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0)) != (hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0))) ? t_2 : ((t_2 != t_2) ? (hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0)) : max((hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0)), t_2)))))); else tmp = Float32(t_0 / sqrt((((Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0)) != (Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0))) ? t_2 : ((t_2 != t_2) ? (Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0)) : max((Float32(dX_46_v * Float32(-floor(h))) ^ Float32(2.0)), t_2))))); 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) * dX_46_v; t_2 = hypot(t_0, (floor(h) * dY_46_v)) ^ single(2.0); tmp = single(0.0); if ((t_1 ^ single(2.0)) >= t_2) tmp = dX_46_u * (floor(w) / sqrt(max((hypot((floor(w) * dX_46_u), t_1) ^ single(2.0)), t_2))); else tmp = t_0 / sqrt(max(((dX_46_v * -floor(h)) ^ single(2.0)), t_2)); 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 h\right\rfloor \cdot dX.v\\
t_2 := {\left(\mathsf{hypot}\left(t\_0, \left\lfloor h\right\rfloor \cdot dY.v\right)\right)}^{2}\\
\mathbf{if}\;{t\_1}^{2} \geq t\_2:\\
\;\;\;\;dX.u \cdot \frac{\left\lfloor w\right\rfloor }{\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, t\_1\right)\right)}^{2}, t\_2\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_0}{\sqrt{\mathsf{max}\left({\left(dX.v \cdot \left(-\left\lfloor h\right\rfloor \right)\right)}^{2}, t\_2\right)}}\\
\end{array}
\end{array}
Initial program 78.5%
Simplified78.7%
Applied egg-rr78.5%
Simplified78.6%
Taylor expanded in w around 0 78.2%
Simplified78.6%
Taylor expanded in dX.u around 0 69.0%
Taylor expanded in dX.v around -inf 71.6%
mul-1-neg71.6%
distribute-rgt-neg-in71.6%
Simplified71.6%
Final simplification71.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dY.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dX.v))
(t_3
(sqrt
(fmax
(pow (hypot (* (floor w) dX.u) t_2) 2.0)
(pow (hypot t_1 t_0) 2.0))))
(t_4 (/ t_1 t_3))
(t_5 (* dX.u (/ (floor w) t_3)))
(t_6 (pow t_2 2.0)))
(if (<= dY.v 55000.0)
(if (>= t_6 (pow t_1 2.0)) t_5 t_4)
(if (>= t_6 (pow t_0 2.0)) t_5 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) * dY_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dX_46_v;
float t_3 = sqrtf(fmaxf(powf(hypotf((floorf(w) * dX_46_u), t_2), 2.0f), powf(hypotf(t_1, t_0), 2.0f)));
float t_4 = t_1 / t_3;
float t_5 = dX_46_u * (floorf(w) / t_3);
float t_6 = powf(t_2, 2.0f);
float tmp_1;
if (dY_46_v <= 55000.0f) {
float tmp_2;
if (t_6 >= powf(t_1, 2.0f)) {
tmp_2 = t_5;
} else {
tmp_2 = t_4;
}
tmp_1 = tmp_2;
} else if (t_6 >= powf(t_0, 2.0f)) {
tmp_1 = t_5;
} else {
tmp_1 = t_4;
}
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) * dY_46_v) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dX_46_v) t_3 = sqrt((((hypot(Float32(floor(w) * dX_46_u), t_2) ^ Float32(2.0)) != (hypot(Float32(floor(w) * dX_46_u), t_2) ^ Float32(2.0))) ? (hypot(t_1, t_0) ^ Float32(2.0)) : (((hypot(t_1, t_0) ^ Float32(2.0)) != (hypot(t_1, t_0) ^ Float32(2.0))) ? (hypot(Float32(floor(w) * dX_46_u), t_2) ^ Float32(2.0)) : max((hypot(Float32(floor(w) * dX_46_u), t_2) ^ Float32(2.0)), (hypot(t_1, t_0) ^ Float32(2.0)))))) t_4 = Float32(t_1 / t_3) t_5 = Float32(dX_46_u * Float32(floor(w) / t_3)) t_6 = t_2 ^ Float32(2.0) tmp_1 = Float32(0.0) if (dY_46_v <= Float32(55000.0)) tmp_2 = Float32(0.0) if (t_6 >= (t_1 ^ Float32(2.0))) tmp_2 = t_5; else tmp_2 = t_4; end tmp_1 = tmp_2; elseif (t_6 >= (t_0 ^ Float32(2.0))) tmp_1 = t_5; else tmp_1 = t_4; 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) * dY_46_v; t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dX_46_v; t_3 = sqrt(max((hypot((floor(w) * dX_46_u), t_2) ^ single(2.0)), (hypot(t_1, t_0) ^ single(2.0)))); t_4 = t_1 / t_3; t_5 = dX_46_u * (floor(w) / t_3); t_6 = t_2 ^ single(2.0); tmp_2 = single(0.0); if (dY_46_v <= single(55000.0)) tmp_3 = single(0.0); if (t_6 >= (t_1 ^ single(2.0))) tmp_3 = t_5; else tmp_3 = t_4; end tmp_2 = tmp_3; elseif (t_6 >= (t_0 ^ single(2.0))) tmp_2 = t_5; else tmp_2 = t_4; end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_3 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, t\_2\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_1, t\_0\right)\right)}^{2}\right)}\\
t_4 := \frac{t\_1}{t\_3}\\
t_5 := dX.u \cdot \frac{\left\lfloor w\right\rfloor }{t\_3}\\
t_6 := {t\_2}^{2}\\
\mathbf{if}\;dY.v \leq 55000:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_6 \geq {t\_1}^{2}:\\
\;\;\;\;t\_5\\
\mathbf{else}:\\
\;\;\;\;t\_4\\
\end{array}\\
\mathbf{elif}\;t\_6 \geq {t\_0}^{2}:\\
\;\;\;\;t\_5\\
\mathbf{else}:\\
\;\;\;\;t\_4\\
\end{array}
\end{array}
if dY.v < 55000Initial program 78.5%
Simplified78.8%
Applied egg-rr78.5%
Simplified78.7%
Taylor expanded in w around 0 78.2%
Simplified78.7%
Taylor expanded in dX.u around 0 67.3%
Taylor expanded in dY.u around inf 66.3%
*-commutative66.3%
unpow266.3%
unpow266.3%
swap-sqr66.3%
unpow266.3%
Simplified66.3%
if 55000 < dY.v Initial program 78.2%
Simplified78.4%
Applied egg-rr78.4%
Simplified78.4%
Taylor expanded in w around 0 78.2%
Simplified78.4%
Taylor expanded in dX.u around 0 76.4%
Taylor expanded in dY.u around 0 76.4%
*-commutative76.4%
unpow276.4%
unpow276.4%
swap-sqr76.4%
unpow276.4%
Simplified76.4%
Final simplification68.1%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dY.v))
(t_1 (* (floor h) dX.v))
(t_2 (* (floor w) dY.u))
(t_3
(sqrt
(fmax
(pow (hypot (* (floor w) dX.u) t_1) 2.0)
(pow (hypot t_2 t_0) 2.0)))))
(if (>= (pow t_1 2.0) (pow t_0 2.0))
(* dX.u (/ (floor w) t_3))
(/ t_2 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 = floorf(h) * dY_46_v;
float t_1 = floorf(h) * dX_46_v;
float t_2 = floorf(w) * dY_46_u;
float t_3 = sqrtf(fmaxf(powf(hypotf((floorf(w) * dX_46_u), t_1), 2.0f), powf(hypotf(t_2, t_0), 2.0f)));
float tmp;
if (powf(t_1, 2.0f) >= powf(t_0, 2.0f)) {
tmp = dX_46_u * (floorf(w) / t_3);
} else {
tmp = t_2 / t_3;
}
return 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) t_1 = Float32(floor(h) * dX_46_v) t_2 = Float32(floor(w) * dY_46_u) t_3 = sqrt((((hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0)) != (hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0))) ? (hypot(t_2, t_0) ^ Float32(2.0)) : (((hypot(t_2, t_0) ^ Float32(2.0)) != (hypot(t_2, t_0) ^ Float32(2.0))) ? (hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0)) : max((hypot(Float32(floor(w) * dX_46_u), t_1) ^ Float32(2.0)), (hypot(t_2, t_0) ^ Float32(2.0)))))) tmp = Float32(0.0) if ((t_1 ^ Float32(2.0)) >= (t_0 ^ Float32(2.0))) tmp = Float32(dX_46_u * Float32(floor(w) / t_3)); else tmp = Float32(t_2 / t_3); 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) * dY_46_v; t_1 = floor(h) * dX_46_v; t_2 = floor(w) * dY_46_u; t_3 = sqrt(max((hypot((floor(w) * dX_46_u), t_1) ^ single(2.0)), (hypot(t_2, t_0) ^ single(2.0)))); tmp = single(0.0); if ((t_1 ^ single(2.0)) >= (t_0 ^ single(2.0))) tmp = dX_46_u * (floor(w) / t_3); else tmp = t_2 / t_3; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_1 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(\left\lfloor w\right\rfloor \cdot dX.u, t\_1\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_2, t\_0\right)\right)}^{2}\right)}\\
\mathbf{if}\;{t\_1}^{2} \geq {t\_0}^{2}:\\
\;\;\;\;dX.u \cdot \frac{\left\lfloor w\right\rfloor }{t\_3}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{t\_3}\\
\end{array}
\end{array}
Initial program 78.5%
Simplified78.7%
Applied egg-rr78.5%
Simplified78.6%
Taylor expanded in w around 0 78.2%
Simplified78.6%
Taylor expanded in dX.u around 0 69.0%
Taylor expanded in dY.u around 0 62.5%
*-commutative62.5%
unpow262.5%
unpow262.5%
swap-sqr62.5%
unpow262.5%
Simplified62.5%
Final simplification62.5%
herbie shell --seed 2024170
(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))))