
(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 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* (floor w) dX.u))
(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 (>= (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_1 t_1) (pow t_2 2.0)))
(* t_3 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(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 = 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 (((t_3 * t_3) + (t_0 * t_0)) >= ((t_1 * t_1) + powf(t_2, 2.0f))) {
tmp = t_3 * 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(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 = 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(Float32(t_3 * t_3) + Float32(t_0 * t_0)) >= Float32(Float32(t_1 * t_1) + (t_2 ^ Float32(2.0)))) tmp = Float32(t_3 * 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(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 = 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 * t_3) + (t_0 * t_0)) >= ((t_1 * t_1) + (t_2 ^ single(2.0)))) tmp = t_3 * t_4; else tmp = t_1 * 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\lfloorh\right\rfloor \cdot dY.v\\
t_3 := \left\lfloorw\right\rfloor \cdot dX.u\\
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 \cdot t\_3 + t\_0 \cdot t\_0 \geq t\_1 \cdot t\_1 + {t\_2}^{2}:\\
\;\;\;\;t\_3 \cdot t\_4\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot t\_4\\
\end{array}
\end{array}
Initial program 77.4%
pow1/277.4%
Applied egg-rr77.4%
pow1/277.4%
Applied egg-rr77.4%
Taylor expanded in h around 0 77.4%
*-commutative77.4%
unpow277.4%
unpow277.4%
swap-sqr77.4%
unpow277.4%
Simplified77.4%
Final simplification77.4%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dY.v))
(t_1 (pow t_0 2.0))
(t_2 (* (floor w) dX.u))
(t_3 (* (floor h) dX.v))
(t_4 (+ (* t_2 t_2) (* t_3 t_3)))
(t_5 (pow (hypot t_2 t_3) 2.0))
(t_6 (* (floor w) dY.u))
(t_7 (* t_6 t_6))
(t_8 (pow (hypot t_6 t_0) 2.0)))
(if (or (<= dX.u -2000000.0) (not (<= dX.u 15000.0)))
(if (>= t_4 (+ t_7 (* t_0 t_0)))
(* t_2 (/ 1.0 (sqrt (fmax t_5 (pow t_6 2.0)))))
(* t_6 (/ 1.0 (exp (* 0.5 (log (fmax t_5 t_1)))))))
(if (>= t_4 (+ t_7 t_1))
(*
t_2
(/ 1.0 (pow (fmax (* (pow dX.v 2.0) (pow (floor h) 2.0)) t_8) 0.5)))
(* t_6 (/ 1.0 (pow (fmax t_5 t_8) 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(h) * dY_46_v;
float t_1 = powf(t_0, 2.0f);
float t_2 = floorf(w) * dX_46_u;
float t_3 = floorf(h) * dX_46_v;
float t_4 = (t_2 * t_2) + (t_3 * t_3);
float t_5 = powf(hypotf(t_2, t_3), 2.0f);
float t_6 = floorf(w) * dY_46_u;
float t_7 = t_6 * t_6;
float t_8 = powf(hypotf(t_6, t_0), 2.0f);
float tmp_1;
if ((dX_46_u <= -2000000.0f) || !(dX_46_u <= 15000.0f)) {
float tmp_2;
if (t_4 >= (t_7 + (t_0 * t_0))) {
tmp_2 = t_2 * (1.0f / sqrtf(fmaxf(t_5, powf(t_6, 2.0f))));
} else {
tmp_2 = t_6 * (1.0f / expf((0.5f * logf(fmaxf(t_5, t_1)))));
}
tmp_1 = tmp_2;
} else if (t_4 >= (t_7 + t_1)) {
tmp_1 = t_2 * (1.0f / powf(fmaxf((powf(dX_46_v, 2.0f) * powf(floorf(h), 2.0f)), t_8), 0.5f));
} else {
tmp_1 = t_6 * (1.0f / powf(fmaxf(t_5, t_8), 0.5f));
}
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 = t_0 ^ Float32(2.0) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(floor(h) * dX_46_v) t_4 = Float32(Float32(t_2 * t_2) + Float32(t_3 * t_3)) t_5 = hypot(t_2, t_3) ^ Float32(2.0) t_6 = Float32(floor(w) * dY_46_u) t_7 = Float32(t_6 * t_6) t_8 = hypot(t_6, t_0) ^ Float32(2.0) tmp_1 = Float32(0.0) if ((dX_46_u <= Float32(-2000000.0)) || !(dX_46_u <= Float32(15000.0))) tmp_2 = Float32(0.0) if (t_4 >= Float32(t_7 + Float32(t_0 * t_0))) tmp_2 = Float32(t_2 * Float32(Float32(1.0) / sqrt(((t_5 != t_5) ? (t_6 ^ Float32(2.0)) : (((t_6 ^ Float32(2.0)) != (t_6 ^ Float32(2.0))) ? t_5 : max(t_5, (t_6 ^ Float32(2.0)))))))); else tmp_2 = Float32(t_6 * Float32(Float32(1.0) / exp(Float32(Float32(0.5) * log(((t_5 != t_5) ? t_1 : ((t_1 != t_1) ? t_5 : max(t_5, t_1)))))))); end tmp_1 = tmp_2; elseif (t_4 >= Float32(t_7 + t_1)) tmp_1 = Float32(t_2 * Float32(Float32(1.0) / (((Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))) != Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0)))) ? t_8 : ((t_8 != t_8) ? Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))) : max(Float32((dX_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))), t_8))) ^ Float32(0.5)))); else tmp_1 = Float32(t_6 * Float32(Float32(1.0) / (((t_5 != t_5) ? t_8 : ((t_8 != t_8) ? t_5 : max(t_5, t_8))) ^ Float32(0.5)))); 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 = t_0 ^ single(2.0); t_2 = floor(w) * dX_46_u; t_3 = floor(h) * dX_46_v; t_4 = (t_2 * t_2) + (t_3 * t_3); t_5 = hypot(t_2, t_3) ^ single(2.0); t_6 = floor(w) * dY_46_u; t_7 = t_6 * t_6; t_8 = hypot(t_6, t_0) ^ single(2.0); tmp_2 = single(0.0); if ((dX_46_u <= single(-2000000.0)) || ~((dX_46_u <= single(15000.0)))) tmp_3 = single(0.0); if (t_4 >= (t_7 + (t_0 * t_0))) tmp_3 = t_2 * (single(1.0) / sqrt(max(t_5, (t_6 ^ single(2.0))))); else tmp_3 = t_6 * (single(1.0) / exp((single(0.5) * log(max(t_5, t_1))))); end tmp_2 = tmp_3; elseif (t_4 >= (t_7 + t_1)) tmp_2 = t_2 * (single(1.0) / (max(((dX_46_v ^ single(2.0)) * (floor(h) ^ single(2.0))), t_8) ^ single(0.5))); else tmp_2 = t_6 * (single(1.0) / (max(t_5, t_8) ^ single(0.5))); end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_1 := {t\_0}^{2}\\
t_2 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_3 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_4 := t\_2 \cdot t\_2 + t\_3 \cdot t\_3\\
t_5 := {\left(\mathsf{hypot}\left(t\_2, t\_3\right)\right)}^{2}\\
t_6 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_7 := t\_6 \cdot t\_6\\
t_8 := {\left(\mathsf{hypot}\left(t\_6, t\_0\right)\right)}^{2}\\
\mathbf{if}\;dX.u \leq -2000000 \lor \neg \left(dX.u \leq 15000\right):\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_4 \geq t\_7 + t\_0 \cdot t\_0:\\
\;\;\;\;t\_2 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_5, {t\_6}^{2}\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot \frac{1}{e^{0.5 \cdot \log \left(\mathsf{max}\left(t\_5, t\_1\right)\right)}}\\
\end{array}\\
\mathbf{elif}\;t\_4 \geq t\_7 + t\_1:\\
\;\;\;\;t\_2 \cdot \frac{1}{{\left(\mathsf{max}\left({dX.v}^{2} \cdot {\left(\left\lfloorh\right\rfloor\right)}^{2}, t\_8\right)\right)}^{0.5}}\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot \frac{1}{{\left(\mathsf{max}\left(t\_5, t\_8\right)\right)}^{0.5}}\\
\end{array}
\end{array}
if dX.u < -2e6 or 15000 < dX.u Initial program 69.9%
pow1/269.9%
pow-to-exp69.1%
Applied egg-rr69.1%
Taylor expanded in dY.u around 0 65.9%
*-commutative65.9%
unpow265.9%
unpow265.9%
swap-sqr65.9%
unpow265.9%
Simplified65.9%
Taylor expanded in w around 0 65.5%
Simplified65.9%
Taylor expanded in dY.u around inf 65.9%
*-commutative65.9%
unpow265.9%
unpow265.9%
swap-sqr65.9%
unpow265.9%
Simplified65.9%
if -2e6 < dX.u < 15000Initial program 81.9%
pow1/281.9%
Applied egg-rr82.0%
pow1/281.9%
Applied egg-rr82.0%
Taylor expanded in h around 0 82.0%
*-commutative82.0%
unpow282.0%
unpow282.0%
swap-sqr82.0%
unpow282.0%
Simplified82.0%
Taylor expanded in dX.u around 0 78.4%
Final simplification73.7%
(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 (* t_1 t_1))
(t_3 (* (floor w) dX.u))
(t_4 (+ (* t_3 t_3) (* t_0 t_0)))
(t_5 (* (floor h) dY.v))
(t_6 (pow (hypot t_1 t_5) 2.0))
(t_7 (pow t_5 2.0))
(t_8 (pow (hypot t_3 t_0) 2.0)))
(if (<= dX.v 1800.0)
(if (>= t_4 (+ t_2 t_7))
(* t_3 (/ 1.0 (pow (fmax (pow t_3 2.0) t_6) 0.5)))
(* t_1 (/ 1.0 (pow (fmax t_8 t_6) 0.5))))
(if (>= t_4 (+ t_2 (* t_5 t_5)))
(* t_3 (/ 1.0 (sqrt (fmax t_8 (pow t_1 2.0)))))
(* t_1 (/ 1.0 (exp (* 0.5 (log (fmax t_8 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 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = t_1 * t_1;
float t_3 = floorf(w) * dX_46_u;
float t_4 = (t_3 * t_3) + (t_0 * t_0);
float t_5 = floorf(h) * dY_46_v;
float t_6 = powf(hypotf(t_1, t_5), 2.0f);
float t_7 = powf(t_5, 2.0f);
float t_8 = powf(hypotf(t_3, t_0), 2.0f);
float tmp_1;
if (dX_46_v <= 1800.0f) {
float tmp_2;
if (t_4 >= (t_2 + t_7)) {
tmp_2 = t_3 * (1.0f / powf(fmaxf(powf(t_3, 2.0f), t_6), 0.5f));
} else {
tmp_2 = t_1 * (1.0f / powf(fmaxf(t_8, t_6), 0.5f));
}
tmp_1 = tmp_2;
} else if (t_4 >= (t_2 + (t_5 * t_5))) {
tmp_1 = t_3 * (1.0f / sqrtf(fmaxf(t_8, powf(t_1, 2.0f))));
} else {
tmp_1 = t_1 * (1.0f / expf((0.5f * logf(fmaxf(t_8, 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(floor(h) * dX_46_v) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(t_1 * t_1) t_3 = Float32(floor(w) * dX_46_u) t_4 = Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) t_5 = Float32(floor(h) * dY_46_v) t_6 = hypot(t_1, t_5) ^ Float32(2.0) t_7 = t_5 ^ Float32(2.0) t_8 = hypot(t_3, t_0) ^ Float32(2.0) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(1800.0)) tmp_2 = Float32(0.0) if (t_4 >= Float32(t_2 + t_7)) tmp_2 = Float32(t_3 * Float32(Float32(1.0) / ((((t_3 ^ Float32(2.0)) != (t_3 ^ Float32(2.0))) ? t_6 : ((t_6 != t_6) ? (t_3 ^ Float32(2.0)) : max((t_3 ^ Float32(2.0)), t_6))) ^ Float32(0.5)))); else tmp_2 = Float32(t_1 * Float32(Float32(1.0) / (((t_8 != t_8) ? t_6 : ((t_6 != t_6) ? t_8 : max(t_8, t_6))) ^ Float32(0.5)))); end tmp_1 = tmp_2; elseif (t_4 >= Float32(t_2 + Float32(t_5 * t_5))) tmp_1 = Float32(t_3 * Float32(Float32(1.0) / sqrt(((t_8 != t_8) ? (t_1 ^ Float32(2.0)) : (((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? t_8 : max(t_8, (t_1 ^ Float32(2.0)))))))); else tmp_1 = Float32(t_1 * Float32(Float32(1.0) / exp(Float32(Float32(0.5) * log(((t_8 != t_8) ? t_7 : ((t_7 != t_7) ? t_8 : max(t_8, 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 = floor(h) * dX_46_v; t_1 = floor(w) * dY_46_u; t_2 = t_1 * t_1; t_3 = floor(w) * dX_46_u; t_4 = (t_3 * t_3) + (t_0 * t_0); t_5 = floor(h) * dY_46_v; t_6 = hypot(t_1, t_5) ^ single(2.0); t_7 = t_5 ^ single(2.0); t_8 = hypot(t_3, t_0) ^ single(2.0); tmp_2 = single(0.0); if (dX_46_v <= single(1800.0)) tmp_3 = single(0.0); if (t_4 >= (t_2 + t_7)) tmp_3 = t_3 * (single(1.0) / (max((t_3 ^ single(2.0)), t_6) ^ single(0.5))); else tmp_3 = t_1 * (single(1.0) / (max(t_8, t_6) ^ single(0.5))); end tmp_2 = tmp_3; elseif (t_4 >= (t_2 + (t_5 * t_5))) tmp_2 = t_3 * (single(1.0) / sqrt(max(t_8, (t_1 ^ single(2.0))))); else tmp_2 = t_1 * (single(1.0) / exp((single(0.5) * log(max(t_8, t_7))))); end tmp_4 = tmp_2; 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 := t\_1 \cdot t\_1\\
t_3 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_4 := t\_3 \cdot t\_3 + t\_0 \cdot t\_0\\
t_5 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_6 := {\left(\mathsf{hypot}\left(t\_1, t\_5\right)\right)}^{2}\\
t_7 := {t\_5}^{2}\\
t_8 := {\left(\mathsf{hypot}\left(t\_3, t\_0\right)\right)}^{2}\\
\mathbf{if}\;dX.v \leq 1800:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_4 \geq t\_2 + t\_7:\\
\;\;\;\;t\_3 \cdot \frac{1}{{\left(\mathsf{max}\left({t\_3}^{2}, t\_6\right)\right)}^{0.5}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{{\left(\mathsf{max}\left(t\_8, t\_6\right)\right)}^{0.5}}\\
\end{array}\\
\mathbf{elif}\;t\_4 \geq t\_2 + t\_5 \cdot t\_5:\\
\;\;\;\;t\_3 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_8, {t\_1}^{2}\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{e^{0.5 \cdot \log \left(\mathsf{max}\left(t\_8, t\_7\right)\right)}}\\
\end{array}
\end{array}
if dX.v < 1800Initial program 78.0%
pow1/278.0%
Applied egg-rr78.1%
pow1/278.0%
Applied egg-rr78.1%
Taylor expanded in h around 0 78.1%
*-commutative78.1%
unpow278.1%
unpow278.1%
swap-sqr78.1%
unpow278.1%
Simplified78.1%
Taylor expanded in dX.u around inf 63.5%
*-commutative63.5%
unpow263.5%
unpow263.5%
swap-sqr63.6%
unpow263.6%
*-commutative63.6%
Simplified63.6%
if 1800 < dX.v Initial program 74.7%
pow1/274.7%
pow-to-exp72.9%
Applied egg-rr72.9%
Taylor expanded in dY.u around 0 69.6%
*-commutative69.6%
unpow269.6%
unpow269.6%
swap-sqr69.6%
unpow269.6%
Simplified69.6%
Taylor expanded in w around 0 69.4%
Simplified69.7%
Taylor expanded in dY.u around inf 69.7%
*-commutative69.7%
unpow269.7%
unpow269.7%
swap-sqr69.7%
unpow269.7%
Simplified69.7%
Final simplification64.9%
(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) dX.u))
(t_2 (* (floor w) dY.u))
(t_3 (* (floor h) dY.v))
(t_4 (pow (hypot t_2 t_3) 2.0))
(t_5 (pow t_3 2.0))
(t_6 (>= (+ (* t_1 t_1) (* t_0 t_0)) (+ (* t_2 t_2) t_5)))
(t_7 (pow (hypot t_1 t_0) 2.0))
(t_8 (/ 1.0 (pow (fmax t_7 t_4) 0.5))))
(if (<= dX.v 1650.0)
(if t_6 (* t_1 (/ 1.0 (pow (fmax (pow t_1 2.0) t_4) 0.5))) (* t_2 t_8))
(if t_6 (* t_1 t_8) (* t_2 (/ 1.0 (pow (fmax t_7 t_5) 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(h) * dX_46_v;
float t_1 = floorf(w) * dX_46_u;
float t_2 = floorf(w) * dY_46_u;
float t_3 = floorf(h) * dY_46_v;
float t_4 = powf(hypotf(t_2, t_3), 2.0f);
float t_5 = powf(t_3, 2.0f);
int t_6 = ((t_1 * t_1) + (t_0 * t_0)) >= ((t_2 * t_2) + t_5);
float t_7 = powf(hypotf(t_1, t_0), 2.0f);
float t_8 = 1.0f / powf(fmaxf(t_7, t_4), 0.5f);
float tmp_1;
if (dX_46_v <= 1650.0f) {
float tmp_2;
if (t_6) {
tmp_2 = t_1 * (1.0f / powf(fmaxf(powf(t_1, 2.0f), t_4), 0.5f));
} else {
tmp_2 = t_2 * t_8;
}
tmp_1 = tmp_2;
} else if (t_6) {
tmp_1 = t_1 * t_8;
} else {
tmp_1 = t_2 * (1.0f / powf(fmaxf(t_7, t_5), 0.5f));
}
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) * dX_46_u) t_2 = Float32(floor(w) * dY_46_u) t_3 = Float32(floor(h) * dY_46_v) t_4 = hypot(t_2, t_3) ^ Float32(2.0) t_5 = t_3 ^ Float32(2.0) t_6 = Float32(Float32(t_1 * t_1) + Float32(t_0 * t_0)) >= Float32(Float32(t_2 * t_2) + t_5) t_7 = hypot(t_1, t_0) ^ Float32(2.0) t_8 = Float32(Float32(1.0) / (((t_7 != t_7) ? t_4 : ((t_4 != t_4) ? t_7 : max(t_7, t_4))) ^ Float32(0.5))) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(1650.0)) tmp_2 = Float32(0.0) if (t_6) tmp_2 = Float32(t_1 * Float32(Float32(1.0) / ((((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? t_4 : ((t_4 != t_4) ? (t_1 ^ Float32(2.0)) : max((t_1 ^ Float32(2.0)), t_4))) ^ Float32(0.5)))); else tmp_2 = Float32(t_2 * t_8); end tmp_1 = tmp_2; elseif (t_6) tmp_1 = Float32(t_1 * t_8); else tmp_1 = Float32(t_2 * Float32(Float32(1.0) / (((t_7 != t_7) ? t_5 : ((t_5 != t_5) ? t_7 : max(t_7, t_5))) ^ Float32(0.5)))); 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) * dX_46_u; t_2 = floor(w) * dY_46_u; t_3 = floor(h) * dY_46_v; t_4 = hypot(t_2, t_3) ^ single(2.0); t_5 = t_3 ^ single(2.0); t_6 = ((t_1 * t_1) + (t_0 * t_0)) >= ((t_2 * t_2) + t_5); t_7 = hypot(t_1, t_0) ^ single(2.0); t_8 = single(1.0) / (max(t_7, t_4) ^ single(0.5)); tmp_2 = single(0.0); if (dX_46_v <= single(1650.0)) tmp_3 = single(0.0); if (t_6) tmp_3 = t_1 * (single(1.0) / (max((t_1 ^ single(2.0)), t_4) ^ single(0.5))); else tmp_3 = t_2 * t_8; end tmp_2 = tmp_3; elseif (t_6) tmp_2 = t_1 * t_8; else tmp_2 = t_2 * (single(1.0) / (max(t_7, t_5) ^ single(0.5))); end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_1 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_2 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_3 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_4 := {\left(\mathsf{hypot}\left(t\_2, t\_3\right)\right)}^{2}\\
t_5 := {t\_3}^{2}\\
t_6 := t\_1 \cdot t\_1 + t\_0 \cdot t\_0 \geq t\_2 \cdot t\_2 + t\_5\\
t_7 := {\left(\mathsf{hypot}\left(t\_1, t\_0\right)\right)}^{2}\\
t_8 := \frac{1}{{\left(\mathsf{max}\left(t\_7, t\_4\right)\right)}^{0.5}}\\
\mathbf{if}\;dX.v \leq 1650:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_6:\\
\;\;\;\;t\_1 \cdot \frac{1}{{\left(\mathsf{max}\left({t\_1}^{2}, t\_4\right)\right)}^{0.5}}\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot t\_8\\
\end{array}\\
\mathbf{elif}\;t\_6:\\
\;\;\;\;t\_1 \cdot t\_8\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \frac{1}{{\left(\mathsf{max}\left(t\_7, t\_5\right)\right)}^{0.5}}\\
\end{array}
\end{array}
if dX.v < 1650Initial program 78.0%
pow1/278.0%
Applied egg-rr78.1%
pow1/278.0%
Applied egg-rr78.1%
Taylor expanded in h around 0 78.1%
*-commutative78.1%
unpow278.1%
unpow278.1%
swap-sqr78.1%
unpow278.1%
Simplified78.1%
Taylor expanded in dX.u around inf 63.5%
*-commutative63.5%
unpow263.5%
unpow263.5%
swap-sqr63.6%
unpow263.6%
*-commutative63.6%
Simplified63.6%
if 1650 < dX.v Initial program 74.7%
pow1/274.7%
Applied egg-rr74.7%
pow1/274.7%
Applied egg-rr74.7%
Taylor expanded in h around 0 74.7%
*-commutative74.7%
unpow274.7%
unpow274.7%
swap-sqr74.7%
unpow274.7%
Simplified74.7%
Taylor expanded in dY.u around 0 70.9%
*-commutative69.6%
unpow269.6%
unpow269.6%
swap-sqr69.6%
unpow269.6%
Simplified70.9%
Final simplification65.1%
(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) dY.v))
(t_2 (* (floor w) dX.u))
(t_3 (* (floor h) dX.v))
(t_4 (pow (hypot t_2 t_3) 2.0)))
(if (>= (+ (* t_2 t_2) (* t_3 t_3)) (+ (* t_0 t_0) (* t_1 t_1)))
(* t_2 (/ 1.0 (sqrt (fmax t_4 (pow t_0 2.0)))))
(* t_0 (/ 1.0 (exp (* 0.5 (log (fmax t_4 (pow t_1 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 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(w) * dX_46_u;
float t_3 = floorf(h) * dX_46_v;
float t_4 = powf(hypotf(t_2, t_3), 2.0f);
float tmp;
if (((t_2 * t_2) + (t_3 * t_3)) >= ((t_0 * t_0) + (t_1 * t_1))) {
tmp = t_2 * (1.0f / sqrtf(fmaxf(t_4, powf(t_0, 2.0f))));
} else {
tmp = t_0 * (1.0f / expf((0.5f * logf(fmaxf(t_4, powf(t_1, 2.0f))))));
}
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(floor(w) * dX_46_u) t_3 = Float32(floor(h) * dX_46_v) t_4 = hypot(t_2, t_3) ^ Float32(2.0) tmp = Float32(0.0) if (Float32(Float32(t_2 * t_2) + Float32(t_3 * t_3)) >= Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) tmp = Float32(t_2 * Float32(Float32(1.0) / sqrt(((t_4 != t_4) ? (t_0 ^ Float32(2.0)) : (((t_0 ^ Float32(2.0)) != (t_0 ^ Float32(2.0))) ? t_4 : max(t_4, (t_0 ^ Float32(2.0)))))))); else tmp = Float32(t_0 * Float32(Float32(1.0) / exp(Float32(Float32(0.5) * log(((t_4 != t_4) ? (t_1 ^ Float32(2.0)) : (((t_1 ^ Float32(2.0)) != (t_1 ^ Float32(2.0))) ? t_4 : max(t_4, (t_1 ^ 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 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = floor(w) * dX_46_u; t_3 = floor(h) * dX_46_v; t_4 = hypot(t_2, t_3) ^ single(2.0); tmp = single(0.0); if (((t_2 * t_2) + (t_3 * t_3)) >= ((t_0 * t_0) + (t_1 * t_1))) tmp = t_2 * (single(1.0) / sqrt(max(t_4, (t_0 ^ single(2.0))))); else tmp = t_0 * (single(1.0) / exp((single(0.5) * log(max(t_4, (t_1 ^ single(2.0))))))); 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\lfloorw\right\rfloor \cdot dX.u\\
t_3 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_4 := {\left(\mathsf{hypot}\left(t\_2, t\_3\right)\right)}^{2}\\
\mathbf{if}\;t\_2 \cdot t\_2 + t\_3 \cdot t\_3 \geq t\_0 \cdot t\_0 + t\_1 \cdot t\_1:\\
\;\;\;\;t\_2 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_4, {t\_0}^{2}\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \frac{1}{e^{0.5 \cdot \log \left(\mathsf{max}\left(t\_4, {t\_1}^{2}\right)\right)}}\\
\end{array}
\end{array}
Initial program 77.4%
pow1/277.4%
pow-to-exp74.9%
Applied egg-rr74.9%
Taylor expanded in dY.u around 0 62.0%
*-commutative62.0%
unpow262.0%
unpow262.0%
swap-sqr62.0%
unpow262.0%
Simplified62.0%
Taylor expanded in w around 0 61.8%
Simplified62.0%
Taylor expanded in dY.u around inf 62.0%
*-commutative62.0%
unpow262.0%
unpow262.0%
swap-sqr62.0%
unpow262.0%
Simplified62.0%
Final simplification62.0%
herbie shell --seed 2024067
(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))))