
(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 w) dX.u))
(t_1 (+ (pow (* (floor h) dX.v) 2.0) (pow t_0 2.0)))
(t_2 (* (floor w) dY.u))
(t_3 (+ (pow (* (floor h) dY.v) 2.0) (pow t_2 2.0)))
(t_4 (pow (fmax t_1 t_3) 0.5)))
(if (>= t_1 t_3) (/ 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 = floorf(w) * dX_46_u;
float t_1 = powf((floorf(h) * dX_46_v), 2.0f) + powf(t_0, 2.0f);
float t_2 = floorf(w) * dY_46_u;
float t_3 = powf((floorf(h) * dY_46_v), 2.0f) + powf(t_2, 2.0f);
float t_4 = powf(fmaxf(t_1, t_3), 0.5f);
float tmp;
if (t_1 >= t_3) {
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(floor(w) * dX_46_u) t_1 = Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) t_2 = Float32(floor(w) * dY_46_u) t_3 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) t_4 = ((t_1 != t_1) ? t_3 : ((t_3 != t_3) ? t_1 : max(t_1, t_3))) ^ Float32(0.5) tmp = Float32(0.0) if (t_1 >= t_3) 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 = floor(w) * dX_46_u; t_1 = ((floor(h) * dX_46_v) ^ single(2.0)) + (t_0 ^ single(2.0)); t_2 = floor(w) * dY_46_u; t_3 = ((floor(h) * dY_46_v) ^ single(2.0)) + (t_2 ^ single(2.0)); t_4 = max(t_1, t_3) ^ single(0.5); tmp = single(0.0); if (t_1 >= t_3) tmp = t_0 / t_4; else tmp = t_2 / 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(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {t\_0}^{2}\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {t\_2}^{2}\\
t_4 := {\left(\mathsf{max}\left(t\_1, t\_3\right)\right)}^{0.5}\\
\mathbf{if}\;t\_1 \geq t\_3:\\
\;\;\;\;\frac{t\_0}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{t\_4}\\
\end{array}
\end{array}
Initial program 72.8%
Simplified72.9%
Applied egg-rr73.0%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor h) dX.v) 2.0))
(t_1 (* (floor w) dY.u))
(t_2 (+ (pow (* (floor h) dY.v) 2.0) (pow t_1 2.0)))
(t_3 (* (floor w) dX.u))
(t_4 (pow (fmax (+ t_0 (pow t_3 2.0)) t_2) 0.5)))
(if (<= dX.v 0.05000000074505806)
(if (>= (* (* dX.u dX.u) (pow (floor w) 2.0)) t_2)
(/ t_3 t_4)
(/ t_1 t_4))
(if (>= t_0 t_2)
(/ (floor w) (/ t_4 dX.u))
(/
t_1
(pow
(fmax (+ t_0 (exp (* (log (/ (/ -1.0 dX.u) (floor w))) -2.0))) t_2)
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 = powf((floorf(h) * dX_46_v), 2.0f);
float t_1 = floorf(w) * dY_46_u;
float t_2 = powf((floorf(h) * dY_46_v), 2.0f) + powf(t_1, 2.0f);
float t_3 = floorf(w) * dX_46_u;
float t_4 = powf(fmaxf((t_0 + powf(t_3, 2.0f)), t_2), 0.5f);
float tmp_1;
if (dX_46_v <= 0.05000000074505806f) {
float tmp_2;
if (((dX_46_u * dX_46_u) * powf(floorf(w), 2.0f)) >= t_2) {
tmp_2 = t_3 / t_4;
} else {
tmp_2 = t_1 / t_4;
}
tmp_1 = tmp_2;
} else if (t_0 >= t_2) {
tmp_1 = floorf(w) / (t_4 / dX_46_u);
} else {
tmp_1 = t_1 / powf(fmaxf((t_0 + expf((logf(((-1.0f / dX_46_u) / floorf(w))) * -2.0f))), t_2), 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) ^ Float32(2.0) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) t_3 = Float32(floor(w) * dX_46_u) t_4 = ((Float32(t_0 + (t_3 ^ Float32(2.0))) != Float32(t_0 + (t_3 ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? Float32(t_0 + (t_3 ^ Float32(2.0))) : max(Float32(t_0 + (t_3 ^ Float32(2.0))), t_2))) ^ Float32(0.5) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(0.05000000074505806)) tmp_2 = Float32(0.0) if (Float32(Float32(dX_46_u * dX_46_u) * (floor(w) ^ Float32(2.0))) >= t_2) tmp_2 = Float32(t_3 / t_4); else tmp_2 = Float32(t_1 / t_4); end tmp_1 = tmp_2; elseif (t_0 >= t_2) tmp_1 = Float32(floor(w) / Float32(t_4 / dX_46_u)); else tmp_1 = Float32(t_1 / (((Float32(t_0 + exp(Float32(log(Float32(Float32(Float32(-1.0) / dX_46_u) / floor(w))) * Float32(-2.0)))) != Float32(t_0 + exp(Float32(log(Float32(Float32(Float32(-1.0) / dX_46_u) / floor(w))) * Float32(-2.0))))) ? t_2 : ((t_2 != t_2) ? Float32(t_0 + exp(Float32(log(Float32(Float32(Float32(-1.0) / dX_46_u) / floor(w))) * Float32(-2.0)))) : max(Float32(t_0 + exp(Float32(log(Float32(Float32(Float32(-1.0) / dX_46_u) / floor(w))) * Float32(-2.0)))), t_2))) ^ 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) ^ single(2.0); t_1 = floor(w) * dY_46_u; t_2 = ((floor(h) * dY_46_v) ^ single(2.0)) + (t_1 ^ single(2.0)); t_3 = floor(w) * dX_46_u; t_4 = max((t_0 + (t_3 ^ single(2.0))), t_2) ^ single(0.5); tmp_2 = single(0.0); if (dX_46_v <= single(0.05000000074505806)) tmp_3 = single(0.0); if (((dX_46_u * dX_46_u) * (floor(w) ^ single(2.0))) >= t_2) tmp_3 = t_3 / t_4; else tmp_3 = t_1 / t_4; end tmp_2 = tmp_3; elseif (t_0 >= t_2) tmp_2 = floor(w) / (t_4 / dX_46_u); else tmp_2 = t_1 / (max((t_0 + exp((log(((single(-1.0) / dX_46_u) / floor(w))) * single(-2.0)))), t_2) ^ single(0.5)); end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {t\_1}^{2}\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := {\left(\mathsf{max}\left(t\_0 + {t\_3}^{2}, t\_2\right)\right)}^{0.5}\\
\mathbf{if}\;dX.v \leq 0.05000000074505806:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left(dX.u \cdot dX.u\right) \cdot {\left(\left\lfloor w\right\rfloor \right)}^{2} \geq t\_2:\\
\;\;\;\;\frac{t\_3}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{t\_4}\\
\end{array}\\
\mathbf{elif}\;t\_0 \geq t\_2:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{t\_4}{dX.u}}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{{\left(\mathsf{max}\left(t\_0 + e^{\log \left(\frac{\frac{-1}{dX.u}}{\left\lfloor w\right\rfloor }\right) \cdot -2}, t\_2\right)\right)}^{0.5}}\\
\end{array}
\end{array}
if dX.v < 0.0500000007Initial program 73.8%
Simplified73.8%
Applied egg-rr74.0%
Taylor expanded in dX.v around 0
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3267.5%
Simplified67.5%
if 0.0500000007 < dX.v Initial program 70.3%
Simplified70.5%
Applied egg-rr70.5%
Taylor expanded in dX.v 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.f3264.1%
Simplified64.1%
Applied egg-rr64.1%
*-rgt-identityN/A
metadata-evalN/A
unpow-prod-downN/A
metadata-evalN/A
div-invN/A
clear-numN/A
associate-/l/N/A
inv-powN/A
pow-powN/A
pow-to-expN/A
exp-lowering-exp.f32N/A
*-lowering-*.f32N/A
log-lowering-log.f32N/A
/-lowering-/.f32N/A
/-lowering-/.f32N/A
floor-lowering-floor.f32N/A
metadata-eval65.4%
Applied egg-rr65.4%
Final simplification66.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor h) dX.v) 2.0))
(t_1 (* (floor w) dY.u))
(t_2 (+ (pow (* (floor h) dY.v) 2.0) (pow t_1 2.0)))
(t_3 (* (floor w) dX.u))
(t_4 (pow (fmax (+ t_0 (pow t_3 2.0)) t_2) 0.5)))
(if (<= dX.v 0.05000000074505806)
(if (>= (* (* dX.u dX.u) (pow (floor w) 2.0)) t_2)
(/ t_3 t_4)
(/ t_1 t_4))
(if (>= t_0 t_2)
(/ (floor w) (/ t_4 dX.u))
(/ t_1 (pow (fmax (+ t_0 (exp (* 2.0 (log t_3)))) t_2) 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 = powf((floorf(h) * dX_46_v), 2.0f);
float t_1 = floorf(w) * dY_46_u;
float t_2 = powf((floorf(h) * dY_46_v), 2.0f) + powf(t_1, 2.0f);
float t_3 = floorf(w) * dX_46_u;
float t_4 = powf(fmaxf((t_0 + powf(t_3, 2.0f)), t_2), 0.5f);
float tmp_1;
if (dX_46_v <= 0.05000000074505806f) {
float tmp_2;
if (((dX_46_u * dX_46_u) * powf(floorf(w), 2.0f)) >= t_2) {
tmp_2 = t_3 / t_4;
} else {
tmp_2 = t_1 / t_4;
}
tmp_1 = tmp_2;
} else if (t_0 >= t_2) {
tmp_1 = floorf(w) / (t_4 / dX_46_u);
} else {
tmp_1 = t_1 / powf(fmaxf((t_0 + expf((2.0f * logf(t_3)))), t_2), 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) ^ Float32(2.0) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) t_3 = Float32(floor(w) * dX_46_u) t_4 = ((Float32(t_0 + (t_3 ^ Float32(2.0))) != Float32(t_0 + (t_3 ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? Float32(t_0 + (t_3 ^ Float32(2.0))) : max(Float32(t_0 + (t_3 ^ Float32(2.0))), t_2))) ^ Float32(0.5) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(0.05000000074505806)) tmp_2 = Float32(0.0) if (Float32(Float32(dX_46_u * dX_46_u) * (floor(w) ^ Float32(2.0))) >= t_2) tmp_2 = Float32(t_3 / t_4); else tmp_2 = Float32(t_1 / t_4); end tmp_1 = tmp_2; elseif (t_0 >= t_2) tmp_1 = Float32(floor(w) / Float32(t_4 / dX_46_u)); else tmp_1 = Float32(t_1 / (((Float32(t_0 + exp(Float32(Float32(2.0) * log(t_3)))) != Float32(t_0 + exp(Float32(Float32(2.0) * log(t_3))))) ? t_2 : ((t_2 != t_2) ? Float32(t_0 + exp(Float32(Float32(2.0) * log(t_3)))) : max(Float32(t_0 + exp(Float32(Float32(2.0) * log(t_3)))), t_2))) ^ 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) ^ single(2.0); t_1 = floor(w) * dY_46_u; t_2 = ((floor(h) * dY_46_v) ^ single(2.0)) + (t_1 ^ single(2.0)); t_3 = floor(w) * dX_46_u; t_4 = max((t_0 + (t_3 ^ single(2.0))), t_2) ^ single(0.5); tmp_2 = single(0.0); if (dX_46_v <= single(0.05000000074505806)) tmp_3 = single(0.0); if (((dX_46_u * dX_46_u) * (floor(w) ^ single(2.0))) >= t_2) tmp_3 = t_3 / t_4; else tmp_3 = t_1 / t_4; end tmp_2 = tmp_3; elseif (t_0 >= t_2) tmp_2 = floor(w) / (t_4 / dX_46_u); else tmp_2 = t_1 / (max((t_0 + exp((single(2.0) * log(t_3)))), t_2) ^ single(0.5)); end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {t\_1}^{2}\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := {\left(\mathsf{max}\left(t\_0 + {t\_3}^{2}, t\_2\right)\right)}^{0.5}\\
\mathbf{if}\;dX.v \leq 0.05000000074505806:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left(dX.u \cdot dX.u\right) \cdot {\left(\left\lfloor w\right\rfloor \right)}^{2} \geq t\_2:\\
\;\;\;\;\frac{t\_3}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{t\_4}\\
\end{array}\\
\mathbf{elif}\;t\_0 \geq t\_2:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{t\_4}{dX.u}}\\
\mathbf{else}:\\
\;\;\;\;\frac{t\_1}{{\left(\mathsf{max}\left(t\_0 + e^{2 \cdot \log t\_3}, t\_2\right)\right)}^{0.5}}\\
\end{array}
\end{array}
if dX.v < 0.0500000007Initial program 73.8%
Simplified73.8%
Applied egg-rr74.0%
Taylor expanded in dX.v around 0
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3267.5%
Simplified67.5%
if 0.0500000007 < dX.v Initial program 70.3%
Simplified70.5%
Applied egg-rr70.5%
Taylor expanded in dX.v 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.f3264.1%
Simplified64.1%
Applied egg-rr64.1%
*-rgt-identityN/A
metadata-evalN/A
unpow-prod-downN/A
metadata-evalN/A
div-invN/A
associate-*l/N/A
associate-/r/N/A
exp-to-powN/A
exp-lowering-exp.f32N/A
rem-log-expN/A
exp-to-powN/A
associate-/r/N/A
associate-*l/N/A
div-invN/A
metadata-evalN/A
unpow-prod-downN/A
metadata-evalN/A
*-rgt-identityN/A
pow2N/A
pow2N/A
log-powN/A
*-lowering-*.f32N/A
log-lowering-log.f32N/A
Applied egg-rr64.1%
Final simplification66.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor h) dX.v) 2.0))
(t_1 (* (floor w) dY.u))
(t_2 (+ (pow (* (floor h) dY.v) 2.0) (pow t_1 2.0)))
(t_3 (* (floor w) dX.u))
(t_4 (pow (fmax (+ t_0 (pow t_3 2.0)) t_2) 0.5))
(t_5 (/ t_1 t_4))
(t_6 (/ t_3 t_4)))
(if (<= dX.v 40000.0)
(if (>= (* (* dX.u dX.u) (pow (floor w) 2.0)) t_2) t_6 t_5)
(if (>= t_0 t_2) t_6 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 = powf((floorf(h) * dX_46_v), 2.0f);
float t_1 = floorf(w) * dY_46_u;
float t_2 = powf((floorf(h) * dY_46_v), 2.0f) + powf(t_1, 2.0f);
float t_3 = floorf(w) * dX_46_u;
float t_4 = powf(fmaxf((t_0 + powf(t_3, 2.0f)), t_2), 0.5f);
float t_5 = t_1 / t_4;
float t_6 = t_3 / t_4;
float tmp_1;
if (dX_46_v <= 40000.0f) {
float tmp_2;
if (((dX_46_u * dX_46_u) * powf(floorf(w), 2.0f)) >= t_2) {
tmp_2 = t_6;
} else {
tmp_2 = t_5;
}
tmp_1 = tmp_2;
} else if (t_0 >= t_2) {
tmp_1 = t_6;
} else {
tmp_1 = t_5;
}
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) ^ Float32(2.0) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) t_3 = Float32(floor(w) * dX_46_u) t_4 = ((Float32(t_0 + (t_3 ^ Float32(2.0))) != Float32(t_0 + (t_3 ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? Float32(t_0 + (t_3 ^ Float32(2.0))) : max(Float32(t_0 + (t_3 ^ Float32(2.0))), t_2))) ^ Float32(0.5) t_5 = Float32(t_1 / t_4) t_6 = Float32(t_3 / t_4) tmp_1 = Float32(0.0) if (dX_46_v <= Float32(40000.0)) tmp_2 = Float32(0.0) if (Float32(Float32(dX_46_u * dX_46_u) * (floor(w) ^ Float32(2.0))) >= t_2) tmp_2 = t_6; else tmp_2 = t_5; end tmp_1 = tmp_2; elseif (t_0 >= t_2) tmp_1 = t_6; else tmp_1 = t_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) ^ single(2.0); t_1 = floor(w) * dY_46_u; t_2 = ((floor(h) * dY_46_v) ^ single(2.0)) + (t_1 ^ single(2.0)); t_3 = floor(w) * dX_46_u; t_4 = max((t_0 + (t_3 ^ single(2.0))), t_2) ^ single(0.5); t_5 = t_1 / t_4; t_6 = t_3 / t_4; tmp_2 = single(0.0); if (dX_46_v <= single(40000.0)) tmp_3 = single(0.0); if (((dX_46_u * dX_46_u) * (floor(w) ^ single(2.0))) >= t_2) tmp_3 = t_6; else tmp_3 = t_5; end tmp_2 = tmp_3; elseif (t_0 >= t_2) tmp_2 = t_6; else tmp_2 = t_5; end tmp_4 = tmp_2; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {t\_1}^{2}\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := {\left(\mathsf{max}\left(t\_0 + {t\_3}^{2}, t\_2\right)\right)}^{0.5}\\
t_5 := \frac{t\_1}{t\_4}\\
t_6 := \frac{t\_3}{t\_4}\\
\mathbf{if}\;dX.v \leq 40000:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;\left(dX.u \cdot dX.u\right) \cdot {\left(\left\lfloor w\right\rfloor \right)}^{2} \geq t\_2:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_5\\
\end{array}\\
\mathbf{elif}\;t\_0 \geq t\_2:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_5\\
\end{array}
\end{array}
if dX.v < 4e4Initial program 74.6%
Simplified74.6%
Applied egg-rr74.8%
Taylor expanded in dX.v around 0
*-lowering-*.f32N/A
unpow2N/A
*-lowering-*.f32N/A
pow-lowering-pow.f32N/A
floor-lowering-floor.f3268.6%
Simplified68.6%
if 4e4 < dX.v Initial program 65.9%
Simplified66.2%
Applied egg-rr66.2%
Taylor expanded in dX.v 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.f3262.6%
Simplified62.6%
associate-*r*N/A
*-commutativeN/A
pow2N/A
unpow-prod-downN/A
pow2N/A
>=-lowering->=.f32N/A
pow2N/A
pow-lowering-pow.f32N/A
*-lowering-*.f32N/A
floor-lowering-floor.f32N/A
pow2N/A
associate-*r*N/A
pow2N/A
+-commutativeN/A
+-lowering-+.f32N/A
Applied egg-rr62.6%
Final simplification67.3%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (pow (* (floor h) dX.v) 2.0))
(t_1 (+ (pow (* (floor h) dY.v) 2.0) (pow (* (floor w) dY.u) 2.0)))
(t_2 (pow (fmax (+ t_0 (pow (* (floor w) dX.u) 2.0)) t_1) 0.5)))
(if (>= t_0 t_1) (/ (floor w) (/ t_2 dX.u)) (/ (floor w) (/ t_2 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 = powf((floorf(h) * dX_46_v), 2.0f);
float t_1 = powf((floorf(h) * dY_46_v), 2.0f) + powf((floorf(w) * dY_46_u), 2.0f);
float t_2 = powf(fmaxf((t_0 + powf((floorf(w) * dX_46_u), 2.0f)), t_1), 0.5f);
float tmp;
if (t_0 >= t_1) {
tmp = floorf(w) / (t_2 / dX_46_u);
} else {
tmp = floorf(w) / (t_2 / 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) ^ Float32(2.0) t_1 = Float32((Float32(floor(h) * dY_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dY_46_u) ^ Float32(2.0))) t_2 = ((Float32(t_0 + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) != Float32(t_0 + (Float32(floor(w) * dX_46_u) ^ Float32(2.0)))) ? t_1 : ((t_1 != t_1) ? Float32(t_0 + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) : max(Float32(t_0 + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))), t_1))) ^ Float32(0.5) tmp = Float32(0.0) if (t_0 >= t_1) tmp = Float32(floor(w) / Float32(t_2 / dX_46_u)); else tmp = Float32(floor(w) / Float32(t_2 / 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) ^ single(2.0); t_1 = ((floor(h) * dY_46_v) ^ single(2.0)) + ((floor(w) * dY_46_u) ^ single(2.0)); t_2 = max((t_0 + ((floor(w) * dX_46_u) ^ single(2.0))), t_1) ^ single(0.5); tmp = single(0.0); if (t_0 >= t_1) tmp = floor(w) / (t_2 / dX_46_u); else tmp = floor(w) / (t_2 / dY_46_u); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_1 := {\left(\left\lfloor h\right\rfloor \cdot dY.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dY.u\right)}^{2}\\
t_2 := {\left(\mathsf{max}\left(t\_0 + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}, t\_1\right)\right)}^{0.5}\\
\mathbf{if}\;t\_0 \geq t\_1:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{t\_2}{dX.u}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloor w\right\rfloor }{\frac{t\_2}{dY.u}}\\
\end{array}
\end{array}
Initial program 72.8%
Simplified72.9%
Applied egg-rr73.0%
Taylor expanded in dX.v 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.f3260.9%
Simplified60.9%
Applied egg-rr60.9%
Applied egg-rr60.9%
Final simplification60.9%
herbie shell --seed 2024164
(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))))