
(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 7 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.u (floor w)))
(t_4 (* dX.v (floor h))))
(if (>= (pow (hypot t_3 t_4) 2.0) t_2)
(/
t_4
(sqrt (fmax (fma (* dX.u (pow (floor w) 2.0)) dX.u (pow t_4 2.0)) t_2)))
(*
t_1
(/
1.0
(sqrt
(fmax (+ (* t_3 t_3) (* t_4 t_4)) (+ (* t_0 t_0) (* t_1 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(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_u * floorf(w);
float t_4 = dX_46_v * floorf(h);
float tmp;
if (powf(hypotf(t_3, t_4), 2.0f) >= t_2) {
tmp = t_4 / sqrtf(fmaxf(fmaf((dX_46_u * powf(floorf(w), 2.0f)), dX_46_u, powf(t_4, 2.0f)), t_2));
} else {
tmp = t_1 * (1.0f / sqrtf(fmaxf(((t_3 * t_3) + (t_4 * t_4)), ((t_0 * t_0) + (t_1 * 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(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_u * floor(w)) t_4 = Float32(dX_46_v * floor(h)) tmp = Float32(0.0) if ((hypot(t_3, t_4) ^ Float32(2.0)) >= t_2) tmp = Float32(t_4 / sqrt(((fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, (t_4 ^ Float32(2.0))) != fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, (t_4 ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, (t_4 ^ Float32(2.0))) : max(fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, (t_4 ^ Float32(2.0))), t_2))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / sqrt(((Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) != Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4))) ? Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) : ((Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) != Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) ? Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) : max(Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)), Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)))))))); end return 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.u \cdot \left\lfloorw\right\rfloor\\
t_4 := dX.v \cdot \left\lfloorh\right\rfloor\\
\mathbf{if}\;{\left(\mathsf{hypot}\left(t\_3, t\_4\right)\right)}^{2} \geq t\_2:\\
\;\;\;\;\frac{t\_4}{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(dX.u \cdot {\left(\left\lfloorw\right\rfloor\right)}^{2}, dX.u, {t\_4}^{2}\right), t\_2\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_3 \cdot t\_3 + t\_4 \cdot t\_4, t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right)}}\\
\end{array}
\end{array}
Initial program 75.2%
associate-*l/75.4%
*-un-lft-identity75.4%
associate-*r*75.4%
fma-undefine75.4%
Applied egg-rr75.4%
hypot-undefine75.4%
pow275.4%
exp-to-pow56.9%
sqrt-pow256.9%
metadata-eval56.9%
pow156.9%
associate-*r*56.9%
fma-define56.9%
*-commutative56.9%
associate-*l*56.9%
pow256.9%
exp-to-pow75.5%
Applied egg-rr75.5%
Taylor expanded in w around 0 75.5%
Simplified75.5%
Final simplification75.5%
(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.u (floor w)))
(t_4 (* dX.v (floor h))))
(if (>= (pow (hypot t_3 t_4) 2.0) t_2)
(/ t_4 (sqrt (fmax (+ (pow t_4 2.0) (pow t_3 2.0)) t_2)))
(*
t_1
(/
1.0
(sqrt
(fmax (+ (* t_3 t_3) (* t_4 t_4)) (+ (* t_0 t_0) (* t_1 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(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_u * floorf(w);
float t_4 = dX_46_v * floorf(h);
float tmp;
if (powf(hypotf(t_3, t_4), 2.0f) >= t_2) {
tmp = t_4 / sqrtf(fmaxf((powf(t_4, 2.0f) + powf(t_3, 2.0f)), t_2));
} else {
tmp = t_1 * (1.0f / sqrtf(fmaxf(((t_3 * t_3) + (t_4 * t_4)), ((t_0 * t_0) + (t_1 * 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(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_u * floor(w)) t_4 = Float32(dX_46_v * floor(h)) tmp = Float32(0.0) if ((hypot(t_3, t_4) ^ Float32(2.0)) >= t_2) tmp = Float32(t_4 / sqrt(((Float32((t_4 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))) != Float32((t_4 ^ Float32(2.0)) + (t_3 ^ Float32(2.0)))) ? t_2 : ((t_2 != t_2) ? Float32((t_4 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))) : max(Float32((t_4 ^ Float32(2.0)) + (t_3 ^ Float32(2.0))), t_2))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / sqrt(((Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) != Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4))) ? Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) : ((Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) != Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) ? Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)) : max(Float32(Float32(t_3 * t_3) + Float32(t_4 * t_4)), Float32(Float32(t_0 * t_0) + Float32(t_1 * 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(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_u * floor(w); t_4 = dX_46_v * floor(h); tmp = single(0.0); if ((hypot(t_3, t_4) ^ single(2.0)) >= t_2) tmp = t_4 / sqrt(max(((t_4 ^ single(2.0)) + (t_3 ^ single(2.0))), t_2)); else tmp = t_1 * (single(1.0) / sqrt(max(((t_3 * t_3) + (t_4 * t_4)), ((t_0 * t_0) + (t_1 * t_1))))); 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.u \cdot \left\lfloorw\right\rfloor\\
t_4 := dX.v \cdot \left\lfloorh\right\rfloor\\
\mathbf{if}\;{\left(\mathsf{hypot}\left(t\_3, t\_4\right)\right)}^{2} \geq t\_2:\\
\;\;\;\;\frac{t\_4}{\sqrt{\mathsf{max}\left({t\_4}^{2} + {t\_3}^{2}, t\_2\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_3 \cdot t\_3 + t\_4 \cdot t\_4, t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right)}}\\
\end{array}
\end{array}
Initial program 75.2%
associate-*l/75.4%
*-un-lft-identity75.4%
associate-*r*75.4%
fma-undefine75.4%
Applied egg-rr75.4%
hypot-undefine75.4%
pow275.4%
exp-to-pow56.9%
sqrt-pow256.9%
metadata-eval56.9%
pow156.9%
pow256.9%
exp-to-pow75.4%
Applied egg-rr75.4%
Taylor expanded in w around 0 75.4%
Simplified75.4%
Final simplification75.4%
(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
(sqrt (fmax (pow (hypot t_0 t_3) 2.0) (pow (hypot t_1 t_2) 2.0)))))
(if (>= (+ (pow t_3 2.0) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2)))
(* dX.v (/ (floor h) t_4))
(* t_2 (/ 1.0 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_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 = sqrtf(fmaxf(powf(hypotf(t_0, t_3), 2.0f), powf(hypotf(t_1, t_2), 2.0f)));
float tmp;
if ((powf(t_3, 2.0f) + (t_0 * t_0)) >= ((t_1 * t_1) + (t_2 * t_2))) {
tmp = dX_46_v * (floorf(h) / t_4);
} else {
tmp = t_2 * (1.0f / 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_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 = sqrt((((hypot(t_0, t_3) ^ Float32(2.0)) != (hypot(t_0, t_3) ^ 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_0, t_3) ^ Float32(2.0)) : max((hypot(t_0, t_3) ^ Float32(2.0)), (hypot(t_1, t_2) ^ Float32(2.0)))))) 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(dX_46_v * Float32(floor(h) / t_4)); else tmp = Float32(t_2 * Float32(Float32(1.0) / 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_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 = sqrt(max((hypot(t_0, t_3) ^ single(2.0)), (hypot(t_1, t_2) ^ single(2.0)))); tmp = single(0.0); if (((t_3 ^ single(2.0)) + (t_0 * t_0)) >= ((t_1 * t_1) + (t_2 * t_2))) tmp = dX_46_v * (floor(h) / t_4); else tmp = t_2 * (single(1.0) / t_4); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_4 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, t\_3\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_1, t\_2\right)\right)}^{2}\right)}\\
\mathbf{if}\;{t\_3}^{2} + t\_0 \cdot t\_0 \geq t\_1 \cdot t\_1 + t\_2 \cdot t\_2:\\
\;\;\;\;dX.v \cdot \frac{\left\lfloorh\right\rfloor}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \frac{1}{t\_4}\\
\end{array}
\end{array}
Initial program 75.2%
pow275.2%
Applied egg-rr75.2%
expm1-log1p-u75.3%
expm1-undefine63.0%
Applied egg-rr63.1%
Simplified75.3%
Taylor expanded in w around 0 75.1%
Simplified75.3%
Final simplification75.3%
(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 (pow (hypot t_1 t_2) 2.0))
(t_4 (* dX.v (floor h)))
(t_5
(*
t_2
(/
1.0
(sqrt
(fmax (+ (* t_0 t_0) (* t_4 t_4)) (+ (* t_1 t_1) (* t_2 t_2)))))))
(t_6 (pow t_4 2.0)))
(if (<= dX.u 60000.0)
(if (>= t_6 t_3) (/ t_4 (sqrt (fmax (pow (hypot t_0 t_4) 2.0) t_3))) t_5)
(if (>= (pow t_0 2.0) t_3)
(/ t_4 (sqrt (fmax (fma (* dX.u (pow (floor w) 2.0)) dX.u t_6) t_3)))
t_5))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = dX_46_u * floorf(w);
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = powf(hypotf(t_1, t_2), 2.0f);
float t_4 = dX_46_v * floorf(h);
float t_5 = t_2 * (1.0f / sqrtf(fmaxf(((t_0 * t_0) + (t_4 * t_4)), ((t_1 * t_1) + (t_2 * t_2)))));
float t_6 = powf(t_4, 2.0f);
float tmp_1;
if (dX_46_u <= 60000.0f) {
float tmp_2;
if (t_6 >= t_3) {
tmp_2 = t_4 / sqrtf(fmaxf(powf(hypotf(t_0, t_4), 2.0f), t_3));
} else {
tmp_2 = t_5;
}
tmp_1 = tmp_2;
} else if (powf(t_0, 2.0f) >= t_3) {
tmp_1 = t_4 / sqrtf(fmaxf(fmaf((dX_46_u * powf(floorf(w), 2.0f)), dX_46_u, t_6), t_3));
} 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(dX_46_u * floor(w)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = hypot(t_1, t_2) ^ Float32(2.0) t_4 = Float32(dX_46_v * floor(h)) t_5 = Float32(t_2 * Float32(Float32(1.0) / sqrt(((Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4)) != Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4))) ? Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) : ((Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) != Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) ? Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4)) : max(Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)))))))) t_6 = t_4 ^ Float32(2.0) tmp_1 = Float32(0.0) if (dX_46_u <= Float32(60000.0)) tmp_2 = Float32(0.0) if (t_6 >= t_3) tmp_2 = Float32(t_4 / sqrt((((hypot(t_0, t_4) ^ Float32(2.0)) != (hypot(t_0, t_4) ^ Float32(2.0))) ? t_3 : ((t_3 != t_3) ? (hypot(t_0, t_4) ^ Float32(2.0)) : max((hypot(t_0, t_4) ^ Float32(2.0)), t_3))))); else tmp_2 = t_5; end tmp_1 = tmp_2; elseif ((t_0 ^ Float32(2.0)) >= t_3) tmp_1 = Float32(t_4 / sqrt(((fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, t_6) != fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, t_6)) ? t_3 : ((t_3 != t_3) ? fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, t_6) : max(fma(Float32(dX_46_u * (floor(w) ^ Float32(2.0))), dX_46_u, t_6), t_3))))); else tmp_1 = t_5; end return tmp_1 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 := {\left(\mathsf{hypot}\left(t\_1, t\_2\right)\right)}^{2}\\
t_4 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_5 := t\_2 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_0 \cdot t\_0 + t\_4 \cdot t\_4, t\_1 \cdot t\_1 + t\_2 \cdot t\_2\right)}}\\
t_6 := {t\_4}^{2}\\
\mathbf{if}\;dX.u \leq 60000:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_6 \geq t\_3:\\
\;\;\;\;\frac{t\_4}{\sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, t\_4\right)\right)}^{2}, t\_3\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_5\\
\end{array}\\
\mathbf{elif}\;{t\_0}^{2} \geq t\_3:\\
\;\;\;\;\frac{t\_4}{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(dX.u \cdot {\left(\left\lfloorw\right\rfloor\right)}^{2}, dX.u, t\_6\right), t\_3\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_5\\
\end{array}
\end{array}
if dX.u < 6e4Initial program 77.5%
associate-*l/77.7%
*-un-lft-identity77.7%
associate-*r*77.7%
fma-undefine77.7%
Applied egg-rr77.7%
Taylor expanded in w around 0 77.7%
Simplified77.7%
Taylor expanded in dX.u around 0 68.2%
*-commutative68.2%
unpow268.2%
unpow268.2%
swap-sqr68.2%
unpow268.2%
*-commutative68.2%
Simplified68.2%
if 6e4 < dX.u Initial program 65.7%
associate-*l/65.8%
*-un-lft-identity65.8%
associate-*r*65.8%
fma-undefine65.8%
Applied egg-rr65.7%
hypot-undefine65.8%
pow265.8%
exp-to-pow43.1%
sqrt-pow243.1%
metadata-eval43.1%
pow143.1%
associate-*r*43.1%
fma-define43.1%
*-commutative43.1%
associate-*l*43.1%
pow243.1%
exp-to-pow66.0%
Applied egg-rr66.0%
Taylor expanded in w around 0 66.0%
Simplified66.0%
Taylor expanded in dX.u around inf 66.0%
unpow266.0%
unpow266.0%
swap-sqr66.0%
unpow266.0%
Simplified66.0%
Final simplification67.8%
(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 (pow (hypot t_1 t_2) 2.0))
(t_4 (* dX.v (floor h)))
(t_5 (sqrt (fmax (pow (hypot t_0 t_4) 2.0) t_3)))
(t_6 (/ t_4 t_5)))
(if (<= dX.u 60000.0)
(if (>= (pow t_4 2.0) t_3)
t_6
(*
t_2
(/
1.0
(sqrt
(fmax (+ (* t_0 t_0) (* t_4 t_4)) (+ (* t_1 t_1) (* t_2 t_2)))))))
(if (>= (pow t_0 2.0) t_3) t_6 (* t_2 (/ 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 = dX_46_u * floorf(w);
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = powf(hypotf(t_1, t_2), 2.0f);
float t_4 = dX_46_v * floorf(h);
float t_5 = sqrtf(fmaxf(powf(hypotf(t_0, t_4), 2.0f), t_3));
float t_6 = t_4 / t_5;
float tmp_1;
if (dX_46_u <= 60000.0f) {
float tmp_2;
if (powf(t_4, 2.0f) >= t_3) {
tmp_2 = t_6;
} else {
tmp_2 = t_2 * (1.0f / sqrtf(fmaxf(((t_0 * t_0) + (t_4 * t_4)), ((t_1 * t_1) + (t_2 * t_2)))));
}
tmp_1 = tmp_2;
} else if (powf(t_0, 2.0f) >= t_3) {
tmp_1 = t_6;
} else {
tmp_1 = t_2 * (1.0f / 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(dX_46_u * floor(w)) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = hypot(t_1, t_2) ^ Float32(2.0) t_4 = Float32(dX_46_v * floor(h)) t_5 = sqrt((((hypot(t_0, t_4) ^ Float32(2.0)) != (hypot(t_0, t_4) ^ Float32(2.0))) ? t_3 : ((t_3 != t_3) ? (hypot(t_0, t_4) ^ Float32(2.0)) : max((hypot(t_0, t_4) ^ Float32(2.0)), t_3)))) t_6 = Float32(t_4 / t_5) tmp_1 = Float32(0.0) if (dX_46_u <= Float32(60000.0)) tmp_2 = Float32(0.0) if ((t_4 ^ Float32(2.0)) >= t_3) tmp_2 = t_6; else tmp_2 = Float32(t_2 * Float32(Float32(1.0) / sqrt(((Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4)) != Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4))) ? Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) : ((Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)) != Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))) ? Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4)) : max(Float32(Float32(t_0 * t_0) + Float32(t_4 * t_4)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2)))))))); end tmp_1 = tmp_2; elseif ((t_0 ^ Float32(2.0)) >= t_3) tmp_1 = t_6; else tmp_1 = Float32(t_2 * Float32(Float32(1.0) / 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 = dX_46_u * floor(w); t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = hypot(t_1, t_2) ^ single(2.0); t_4 = dX_46_v * floor(h); t_5 = sqrt(max((hypot(t_0, t_4) ^ single(2.0)), t_3)); t_6 = t_4 / t_5; tmp_2 = single(0.0); if (dX_46_u <= single(60000.0)) tmp_3 = single(0.0); if ((t_4 ^ single(2.0)) >= t_3) tmp_3 = t_6; else tmp_3 = t_2 * (single(1.0) / sqrt(max(((t_0 * t_0) + (t_4 * t_4)), ((t_1 * t_1) + (t_2 * t_2))))); end tmp_2 = tmp_3; elseif ((t_0 ^ single(2.0)) >= t_3) tmp_2 = t_6; else tmp_2 = t_2 * (single(1.0) / t_5); 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 := {\left(\mathsf{hypot}\left(t\_1, t\_2\right)\right)}^{2}\\
t_4 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_5 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, t\_4\right)\right)}^{2}, t\_3\right)}\\
t_6 := \frac{t\_4}{t\_5}\\
\mathbf{if}\;dX.u \leq 60000:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;{t\_4}^{2} \geq t\_3:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_0 \cdot t\_0 + t\_4 \cdot t\_4, t\_1 \cdot t\_1 + t\_2 \cdot t\_2\right)}}\\
\end{array}\\
\mathbf{elif}\;{t\_0}^{2} \geq t\_3:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \frac{1}{t\_5}\\
\end{array}
\end{array}
if dX.u < 6e4Initial program 77.5%
associate-*l/77.7%
*-un-lft-identity77.7%
associate-*r*77.7%
fma-undefine77.7%
Applied egg-rr77.7%
Taylor expanded in w around 0 77.7%
Simplified77.7%
Taylor expanded in dX.u around 0 68.2%
*-commutative68.2%
unpow268.2%
unpow268.2%
swap-sqr68.2%
unpow268.2%
*-commutative68.2%
Simplified68.2%
if 6e4 < dX.u Initial program 65.7%
associate-*l/65.8%
*-un-lft-identity65.8%
associate-*r*65.8%
fma-undefine65.8%
Applied egg-rr65.7%
Taylor expanded in w around 0 65.7%
Simplified65.7%
Taylor expanded in dX.u around inf 65.7%
unpow266.0%
unpow266.0%
swap-sqr66.0%
unpow266.0%
Simplified65.7%
Taylor expanded in w around 0 65.6%
Simplified65.7%
Final simplification67.8%
(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.v (floor h)))
(t_3 (* dX.u (floor w)))
(t_4 (pow t_3 2.0))
(t_5 (pow (hypot t_0 t_1) 2.0)))
(if (>= t_4 t_5)
(/ t_2 (sqrt (fmax (+ (pow t_2 2.0) t_4) t_5)))
(*
t_1
(/
1.0
(sqrt
(fmax (+ (* t_3 t_3) (* t_2 t_2)) (+ (* t_0 t_0) (* t_1 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(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = dX_46_v * floorf(h);
float t_3 = dX_46_u * floorf(w);
float t_4 = powf(t_3, 2.0f);
float t_5 = powf(hypotf(t_0, t_1), 2.0f);
float tmp;
if (t_4 >= t_5) {
tmp = t_2 / sqrtf(fmaxf((powf(t_2, 2.0f) + t_4), t_5));
} else {
tmp = t_1 * (1.0f / sqrtf(fmaxf(((t_3 * t_3) + (t_2 * t_2)), ((t_0 * t_0) + (t_1 * 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(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(dX_46_v * floor(h)) t_3 = Float32(dX_46_u * floor(w)) t_4 = t_3 ^ Float32(2.0) t_5 = hypot(t_0, t_1) ^ Float32(2.0) tmp = Float32(0.0) if (t_4 >= t_5) tmp = Float32(t_2 / sqrt(((Float32((t_2 ^ Float32(2.0)) + t_4) != Float32((t_2 ^ Float32(2.0)) + t_4)) ? t_5 : ((t_5 != t_5) ? Float32((t_2 ^ Float32(2.0)) + t_4) : max(Float32((t_2 ^ Float32(2.0)) + t_4), t_5))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / sqrt(((Float32(Float32(t_3 * t_3) + Float32(t_2 * t_2)) != Float32(Float32(t_3 * t_3) + Float32(t_2 * t_2))) ? Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) : ((Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) != Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))) ? Float32(Float32(t_3 * t_3) + Float32(t_2 * t_2)) : max(Float32(Float32(t_3 * t_3) + Float32(t_2 * t_2)), Float32(Float32(t_0 * t_0) + Float32(t_1 * 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(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = dX_46_v * floor(h); t_3 = dX_46_u * floor(w); t_4 = t_3 ^ single(2.0); t_5 = hypot(t_0, t_1) ^ single(2.0); tmp = single(0.0); if (t_4 >= t_5) tmp = t_2 / sqrt(max(((t_2 ^ single(2.0)) + t_4), t_5)); else tmp = t_1 * (single(1.0) / sqrt(max(((t_3 * t_3) + (t_2 * t_2)), ((t_0 * t_0) + (t_1 * t_1))))); 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.v \cdot \left\lfloorh\right\rfloor\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := {t\_3}^{2}\\
t_5 := {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}\\
\mathbf{if}\;t\_4 \geq t\_5:\\
\;\;\;\;\frac{t\_2}{\sqrt{\mathsf{max}\left({t\_2}^{2} + t\_4, t\_5\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_3 \cdot t\_3 + t\_2 \cdot t\_2, t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right)}}\\
\end{array}
\end{array}
Initial program 75.2%
associate-*l/75.4%
*-un-lft-identity75.4%
associate-*r*75.4%
fma-undefine75.4%
Applied egg-rr75.4%
Taylor expanded in w around 0 75.4%
Simplified75.4%
Taylor expanded in dX.u around inf 63.7%
unpow263.8%
unpow263.8%
swap-sqr63.8%
unpow263.8%
Simplified63.7%
hypot-undefine75.4%
pow275.4%
exp-to-pow56.9%
sqrt-pow256.9%
metadata-eval56.9%
pow156.9%
pow256.9%
exp-to-pow75.4%
Applied egg-rr63.7%
Final simplification63.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dY.v))
(t_1 (* dX.v (floor h)))
(t_2 (pow (hypot (* (floor w) dY.u) t_0) 2.0))
(t_3 (* dX.u (floor w)))
(t_4 (sqrt (fmax (pow (hypot t_3 t_1) 2.0) t_2))))
(if (>= (pow t_3 2.0) t_2) (/ t_1 t_4) (* t_0 (/ 1.0 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 = dX_46_v * floorf(h);
float t_2 = powf(hypotf((floorf(w) * dY_46_u), t_0), 2.0f);
float t_3 = dX_46_u * floorf(w);
float t_4 = sqrtf(fmaxf(powf(hypotf(t_3, t_1), 2.0f), t_2));
float tmp;
if (powf(t_3, 2.0f) >= t_2) {
tmp = t_1 / t_4;
} else {
tmp = t_0 * (1.0f / 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) * dY_46_v) t_1 = Float32(dX_46_v * floor(h)) t_2 = hypot(Float32(floor(w) * dY_46_u), t_0) ^ Float32(2.0) t_3 = Float32(dX_46_u * floor(w)) t_4 = sqrt((((hypot(t_3, t_1) ^ Float32(2.0)) != (hypot(t_3, t_1) ^ Float32(2.0))) ? t_2 : ((t_2 != t_2) ? (hypot(t_3, t_1) ^ Float32(2.0)) : max((hypot(t_3, t_1) ^ Float32(2.0)), t_2)))) tmp = Float32(0.0) if ((t_3 ^ Float32(2.0)) >= t_2) tmp = Float32(t_1 / t_4); else tmp = Float32(t_0 * Float32(Float32(1.0) / 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) * dY_46_v; t_1 = dX_46_v * floor(h); t_2 = hypot((floor(w) * dY_46_u), t_0) ^ single(2.0); t_3 = dX_46_u * floor(w); t_4 = sqrt(max((hypot(t_3, t_1) ^ single(2.0)), t_2)); tmp = single(0.0); if ((t_3 ^ single(2.0)) >= t_2) tmp = t_1 / t_4; else tmp = t_0 * (single(1.0) / t_4); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_1 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_2 := {\left(\mathsf{hypot}\left(\left\lfloorw\right\rfloor \cdot dY.u, t\_0\right)\right)}^{2}\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := \sqrt{\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_3, t\_1\right)\right)}^{2}, t\_2\right)}\\
\mathbf{if}\;{t\_3}^{2} \geq t\_2:\\
\;\;\;\;\frac{t\_1}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \frac{1}{t\_4}\\
\end{array}
\end{array}
Initial program 75.2%
associate-*l/75.4%
*-un-lft-identity75.4%
associate-*r*75.4%
fma-undefine75.4%
Applied egg-rr75.4%
Taylor expanded in w around 0 75.4%
Simplified75.4%
Taylor expanded in dX.u around inf 63.7%
unpow263.8%
unpow263.8%
swap-sqr63.8%
unpow263.8%
Simplified63.7%
Taylor expanded in w around 0 63.6%
Simplified63.7%
Final simplification63.7%
herbie shell --seed 2024094
(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))))