
(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 w) dY.u))
(t_1 (* (floor h) dX.v))
(t_2 (* (floor w) dX.u))
(t_3 (pow (hypot t_2 t_1) 2.0))
(t_4 (* (floor h) dY.v)))
(if (>=
(fma t_2 t_2 (pow t_1 2.0))
(fma t_0 t_0 (* (floor h) (* dY.v t_4))))
(/ t_2 (sqrt (fmax t_3 (pow t_0 2.0))))
(/ (floor w) (/ (sqrt (fmax t_3 (pow (hypot t_0 t_4) 2.0))) 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 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dX_46_v;
float t_2 = floorf(w) * dX_46_u;
float t_3 = powf(hypotf(t_2, t_1), 2.0f);
float t_4 = floorf(h) * dY_46_v;
float tmp;
if (fmaf(t_2, t_2, powf(t_1, 2.0f)) >= fmaf(t_0, t_0, (floorf(h) * (dY_46_v * t_4)))) {
tmp = t_2 / sqrtf(fmaxf(t_3, powf(t_0, 2.0f)));
} else {
tmp = floorf(w) / (sqrtf(fmaxf(t_3, powf(hypotf(t_0, t_4), 2.0f))) / 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(w) * dY_46_u) t_1 = Float32(floor(h) * dX_46_v) t_2 = Float32(floor(w) * dX_46_u) t_3 = hypot(t_2, t_1) ^ Float32(2.0) t_4 = Float32(floor(h) * dY_46_v) tmp = Float32(0.0) if (fma(t_2, t_2, (t_1 ^ Float32(2.0))) >= fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_4)))) tmp = Float32(t_2 / sqrt(((t_3 != t_3) ? (t_0 ^ Float32(2.0)) : (((t_0 ^ Float32(2.0)) != (t_0 ^ Float32(2.0))) ? t_3 : max(t_3, (t_0 ^ Float32(2.0))))))); else tmp = Float32(floor(w) / Float32(sqrt(((t_3 != t_3) ? (hypot(t_0, t_4) ^ Float32(2.0)) : (((hypot(t_0, t_4) ^ Float32(2.0)) != (hypot(t_0, t_4) ^ Float32(2.0))) ? t_3 : max(t_3, (hypot(t_0, t_4) ^ Float32(2.0)))))) / dY_46_u)); 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 dX.v\\
t_2 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_3 := {\left(\mathsf{hypot}\left(t\_2, t\_1\right)\right)}^{2}\\
t_4 := \left\lfloorh\right\rfloor \cdot dY.v\\
\mathbf{if}\;\mathsf{fma}\left(t\_2, t\_2, {t\_1}^{2}\right) \geq \mathsf{fma}\left(t\_0, t\_0, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_4\right)\right):\\
\;\;\;\;\frac{t\_2}{\sqrt{\mathsf{max}\left(t\_3, {t\_0}^{2}\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloorw\right\rfloor}{\frac{\sqrt{\mathsf{max}\left(t\_3, {\left(\mathsf{hypot}\left(t\_0, t\_4\right)\right)}^{2}\right)}}{dY.u}}\\
\end{array}
\end{array}
Initial program 75.8%
Simplified75.9%
Applied egg-rr76.0%
Applied egg-rr71.9%
expm1-def73.5%
expm1-log1p76.0%
*-commutative76.0%
*-commutative76.0%
Simplified76.0%
pow276.0%
Applied egg-rr76.0%
Taylor expanded in dY.u around inf 76.0%
*-commutative76.0%
unpow276.0%
unpow276.0%
swap-sqr76.0%
unpow276.0%
Simplified76.0%
Final simplification76.0%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* t_0 t_0))
(t_2 (* (floor h) dY.v))
(t_3 (* t_2 t_2))
(t_4 (* (floor h) dX.v))
(t_5 (* (floor w) dX.u))
(t_6 (* t_5 t_5))
(t_7 (+ t_6 (* t_4 t_4))))
(if (>= (+ (pow t_4 2.0) t_6) (+ (pow t_0 2.0) t_3))
(* t_5 (/ 1.0 (sqrt (fmax t_7 (+ t_3 t_1)))))
(*
t_0
(/
1.0
(sqrt
(fmax t_7 (+ t_1 (* (floor h) (* (floor h) (pow dY.v 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 = t_0 * t_0;
float t_2 = floorf(h) * dY_46_v;
float t_3 = t_2 * t_2;
float t_4 = floorf(h) * dX_46_v;
float t_5 = floorf(w) * dX_46_u;
float t_6 = t_5 * t_5;
float t_7 = t_6 + (t_4 * t_4);
float tmp;
if ((powf(t_4, 2.0f) + t_6) >= (powf(t_0, 2.0f) + t_3)) {
tmp = t_5 * (1.0f / sqrtf(fmaxf(t_7, (t_3 + t_1))));
} else {
tmp = t_0 * (1.0f / sqrtf(fmaxf(t_7, (t_1 + (floorf(h) * (floorf(h) * powf(dY_46_v, 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(t_0 * t_0) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(t_2 * t_2) t_4 = Float32(floor(h) * dX_46_v) t_5 = Float32(floor(w) * dX_46_u) t_6 = Float32(t_5 * t_5) t_7 = Float32(t_6 + Float32(t_4 * t_4)) tmp = Float32(0.0) if (Float32((t_4 ^ Float32(2.0)) + t_6) >= Float32((t_0 ^ Float32(2.0)) + t_3)) tmp = Float32(t_5 * Float32(Float32(1.0) / sqrt(((t_7 != t_7) ? Float32(t_3 + t_1) : ((Float32(t_3 + t_1) != Float32(t_3 + t_1)) ? t_7 : max(t_7, Float32(t_3 + t_1))))))); else tmp = Float32(t_0 * Float32(Float32(1.0) / sqrt(((t_7 != t_7) ? Float32(t_1 + Float32(floor(h) * Float32(floor(h) * (dY_46_v ^ Float32(2.0))))) : ((Float32(t_1 + Float32(floor(h) * Float32(floor(h) * (dY_46_v ^ Float32(2.0))))) != Float32(t_1 + Float32(floor(h) * Float32(floor(h) * (dY_46_v ^ Float32(2.0)))))) ? t_7 : max(t_7, Float32(t_1 + Float32(floor(h) * Float32(floor(h) * (dY_46_v ^ 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 = t_0 * t_0; t_2 = floor(h) * dY_46_v; t_3 = t_2 * t_2; t_4 = floor(h) * dX_46_v; t_5 = floor(w) * dX_46_u; t_6 = t_5 * t_5; t_7 = t_6 + (t_4 * t_4); tmp = single(0.0); if (((t_4 ^ single(2.0)) + t_6) >= ((t_0 ^ single(2.0)) + t_3)) tmp = t_5 * (single(1.0) / sqrt(max(t_7, (t_3 + t_1)))); else tmp = t_0 * (single(1.0) / sqrt(max(t_7, (t_1 + (floor(h) * (floor(h) * (dY_46_v ^ 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 := t\_0 \cdot t\_0\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := t\_2 \cdot t\_2\\
t_4 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_5 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_6 := t\_5 \cdot t\_5\\
t_7 := t\_6 + t\_4 \cdot t\_4\\
\mathbf{if}\;{t\_4}^{2} + t\_6 \geq {t\_0}^{2} + t\_3:\\
\;\;\;\;t\_5 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_7, t\_3 + t\_1\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_7, t\_1 + \left\lfloorh\right\rfloor \cdot \left(\left\lfloorh\right\rfloor \cdot {dY.v}^{2}\right)\right)}}\\
\end{array}
\end{array}
Initial program 75.8%
add-cube-cbrt75.9%
pow375.9%
cbrt-prod75.7%
pow275.7%
Applied egg-rr75.7%
pow-pow75.8%
pow1/358.5%
pow-pow75.8%
metadata-eval75.8%
metadata-eval75.8%
pow275.8%
*-commutative75.8%
associate-*r*75.9%
*-commutative75.9%
associate-*r*75.9%
*-commutative75.9%
associate-*r*75.9%
pow275.9%
Applied egg-rr75.9%
pow276.0%
Applied egg-rr75.9%
Taylor expanded in w around 0 75.9%
*-commutative75.8%
unpow275.8%
unpow275.8%
swap-sqr75.8%
unpow275.8%
Simplified75.9%
Final simplification75.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* t_0 t_0))
(t_2 (* (floor h) dY.v))
(t_3 (* t_2 t_2))
(t_4 (* (floor h) dX.v))
(t_5 (* (floor w) dX.u))
(t_6 (+ (* t_5 t_5) (* t_4 t_4))))
(if (>= (+ (pow t_4 2.0) (pow t_5 2.0)) (+ (pow t_0 2.0) t_3))
(* t_5 (/ 1.0 (sqrt (fmax t_6 (+ t_3 t_1)))))
(*
t_0
(/
1.0
(sqrt (fmax t_6 (+ t_1 (* (pow dY.v 2.0) (pow (floor h) 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 = t_0 * t_0;
float t_2 = floorf(h) * dY_46_v;
float t_3 = t_2 * t_2;
float t_4 = floorf(h) * dX_46_v;
float t_5 = floorf(w) * dX_46_u;
float t_6 = (t_5 * t_5) + (t_4 * t_4);
float tmp;
if ((powf(t_4, 2.0f) + powf(t_5, 2.0f)) >= (powf(t_0, 2.0f) + t_3)) {
tmp = t_5 * (1.0f / sqrtf(fmaxf(t_6, (t_3 + t_1))));
} else {
tmp = t_0 * (1.0f / sqrtf(fmaxf(t_6, (t_1 + (powf(dY_46_v, 2.0f) * powf(floorf(h), 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(t_0 * t_0) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(t_2 * t_2) t_4 = Float32(floor(h) * dX_46_v) t_5 = Float32(floor(w) * dX_46_u) t_6 = Float32(Float32(t_5 * t_5) + Float32(t_4 * t_4)) tmp = Float32(0.0) if (Float32((t_4 ^ Float32(2.0)) + (t_5 ^ Float32(2.0))) >= Float32((t_0 ^ Float32(2.0)) + t_3)) tmp = Float32(t_5 * Float32(Float32(1.0) / sqrt(((t_6 != t_6) ? Float32(t_3 + t_1) : ((Float32(t_3 + t_1) != Float32(t_3 + t_1)) ? t_6 : max(t_6, Float32(t_3 + t_1))))))); else tmp = Float32(t_0 * Float32(Float32(1.0) / sqrt(((t_6 != t_6) ? Float32(t_1 + Float32((dY_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0)))) : ((Float32(t_1 + Float32((dY_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0)))) != Float32(t_1 + Float32((dY_46_v ^ Float32(2.0)) * (floor(h) ^ Float32(2.0))))) ? t_6 : max(t_6, Float32(t_1 + Float32((dY_46_v ^ Float32(2.0)) * (floor(h) ^ 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 = t_0 * t_0; t_2 = floor(h) * dY_46_v; t_3 = t_2 * t_2; t_4 = floor(h) * dX_46_v; t_5 = floor(w) * dX_46_u; t_6 = (t_5 * t_5) + (t_4 * t_4); tmp = single(0.0); if (((t_4 ^ single(2.0)) + (t_5 ^ single(2.0))) >= ((t_0 ^ single(2.0)) + t_3)) tmp = t_5 * (single(1.0) / sqrt(max(t_6, (t_3 + t_1)))); else tmp = t_0 * (single(1.0) / sqrt(max(t_6, (t_1 + ((dY_46_v ^ single(2.0)) * (floor(h) ^ 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 := t\_0 \cdot t\_0\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := t\_2 \cdot t\_2\\
t_4 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_5 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_6 := t\_5 \cdot t\_5 + t\_4 \cdot t\_4\\
\mathbf{if}\;{t\_4}^{2} + {t\_5}^{2} \geq {t\_0}^{2} + t\_3:\\
\;\;\;\;t\_5 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_6, t\_3 + t\_1\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_6, t\_1 + {dY.v}^{2} \cdot {\left(\left\lfloorh\right\rfloor\right)}^{2}\right)}}\\
\end{array}
\end{array}
Initial program 75.8%
pow275.8%
Applied egg-rr75.8%
pow276.0%
Applied egg-rr75.8%
Taylor expanded in w around 0 75.8%
*-commutative75.8%
unpow275.8%
unpow275.8%
swap-sqr75.8%
unpow275.8%
Simplified75.8%
Taylor expanded in h around 0 75.9%
*-commutative75.9%
Simplified75.9%
Final simplification75.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dX.u))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* (floor h) dX.v))
(t_4
(/
1.0
(sqrt
(fmax (+ (* t_0 t_0) (* t_3 t_3)) (+ (* t_2 t_2) (* t_1 t_1)))))))
(if (>= (+ (pow t_3 2.0) (pow t_0 2.0)) (+ (pow t_1 2.0) (pow t_2 2.0)))
(* t_0 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(w) * dX_46_u;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = floorf(h) * dX_46_v;
float t_4 = 1.0f / sqrtf(fmaxf(((t_0 * t_0) + (t_3 * t_3)), ((t_2 * t_2) + (t_1 * t_1))));
float tmp;
if ((powf(t_3, 2.0f) + powf(t_0, 2.0f)) >= (powf(t_1, 2.0f) + powf(t_2, 2.0f))) {
tmp = t_0 * 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(w) * dX_46_u) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(floor(h) * dX_46_v) t_4 = Float32(Float32(1.0) / sqrt(((Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3)) != Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3))) ? Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)) : ((Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1)) != Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1))) ? Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3)) : max(Float32(Float32(t_0 * t_0) + Float32(t_3 * t_3)), Float32(Float32(t_2 * t_2) + Float32(t_1 * t_1))))))) tmp = Float32(0.0) if (Float32((t_3 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) >= Float32((t_1 ^ Float32(2.0)) + (t_2 ^ Float32(2.0)))) tmp = Float32(t_0 * 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(w) * dX_46_u; t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = floor(h) * dX_46_v; t_4 = single(1.0) / sqrt(max(((t_0 * t_0) + (t_3 * t_3)), ((t_2 * t_2) + (t_1 * t_1)))); tmp = single(0.0); if (((t_3 ^ single(2.0)) + (t_0 ^ single(2.0))) >= ((t_1 ^ single(2.0)) + (t_2 ^ single(2.0)))) tmp = t_0 * t_4; else tmp = t_1 * t_4; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloorw\right\rfloor \cdot dX.u\\
t_1 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_2 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_3 := \left\lfloorh\right\rfloor \cdot dX.v\\
t_4 := \frac{1}{\sqrt{\mathsf{max}\left(t\_0 \cdot t\_0 + t\_3 \cdot t\_3, t\_2 \cdot t\_2 + t\_1 \cdot t\_1\right)}}\\
\mathbf{if}\;{t\_3}^{2} + {t\_0}^{2} \geq {t\_1}^{2} + {t\_2}^{2}:\\
\;\;\;\;t\_0 \cdot t\_4\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot t\_4\\
\end{array}
\end{array}
Initial program 75.8%
pow275.8%
Applied egg-rr75.8%
pow276.0%
Applied egg-rr75.8%
Taylor expanded in w around 0 75.8%
*-commutative75.8%
unpow275.8%
unpow275.8%
swap-sqr75.8%
unpow275.8%
Simplified75.8%
Taylor expanded in h around 0 75.8%
*-commutative75.8%
unpow275.8%
unpow275.8%
swap-sqr75.8%
unpow275.8%
Simplified75.8%
Final simplification75.8%
(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 (* (floor w) dX.u))
(t_3 (* (floor h) dX.v))
(t_4 (pow (hypot t_2 t_3) 2.0)))
(if (>= (fma t_2 t_2 (* t_3 t_3)) (fma t_0 t_0 (* (floor h) (* dY.v t_1))))
(/ t_2 (sqrt (fmax t_4 (pow t_0 2.0))))
(/ (floor w) (/ (sqrt (fmax t_4 (pow t_1 2.0))) 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 = 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 (fmaf(t_2, t_2, (t_3 * t_3)) >= fmaf(t_0, t_0, (floorf(h) * (dY_46_v * t_1)))) {
tmp = t_2 / sqrtf(fmaxf(t_4, powf(t_0, 2.0f)));
} else {
tmp = floorf(w) / (sqrtf(fmaxf(t_4, powf(t_1, 2.0f))) / 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(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 (fma(t_2, t_2, Float32(t_3 * t_3)) >= fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1)))) tmp = Float32(t_2 / 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(floor(w) / Float32(sqrt(((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)))))) / dY_46_u)); 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\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}\;\mathsf{fma}\left(t\_2, t\_2, t\_3 \cdot t\_3\right) \geq \mathsf{fma}\left(t\_0, t\_0, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_1\right)\right):\\
\;\;\;\;\frac{t\_2}{\sqrt{\mathsf{max}\left(t\_4, {t\_0}^{2}\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left\lfloorw\right\rfloor}{\frac{\sqrt{\mathsf{max}\left(t\_4, {t\_1}^{2}\right)}}{dY.u}}\\
\end{array}
\end{array}
Initial program 75.8%
Simplified75.9%
Applied egg-rr76.0%
Applied egg-rr71.9%
expm1-def73.5%
expm1-log1p76.0%
*-commutative76.0%
*-commutative76.0%
Simplified76.0%
Taylor expanded in dY.u around 0 54.8%
*-commutative54.8%
unpow254.8%
unpow254.8%
swap-sqr54.7%
unpow254.7%
Simplified54.7%
Taylor expanded in dY.u around inf 54.7%
*-commutative76.0%
unpow276.0%
unpow276.0%
swap-sqr76.0%
unpow276.0%
Simplified54.7%
Final simplification54.7%
herbie shell --seed 2024026
(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))))