
(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 (* dX.v (floor h)))
(t_3 (* dX.u (floor w)))
(t_4
(sqrt
(fmax
(fma t_3 t_3 (* t_2 t_2))
(fma t_0 t_0 (* (floor h) (* dY.v t_1)))))))
(if (>= (pow (hypot t_3 t_2) 2.0) (pow (hypot t_0 t_1) 2.0))
(/ t_2 t_4)
(* t_1 (/ 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(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 = sqrtf(fmaxf(fmaf(t_3, t_3, (t_2 * t_2)), fmaf(t_0, t_0, (floorf(h) * (dY_46_v * t_1)))));
float tmp;
if (powf(hypotf(t_3, t_2), 2.0f) >= powf(hypotf(t_0, t_1), 2.0f)) {
tmp = t_2 / t_4;
} else {
tmp = t_1 * (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(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 = sqrt(((fma(t_3, t_3, Float32(t_2 * t_2)) != fma(t_3, t_3, Float32(t_2 * t_2))) ? fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) : ((fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) != fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1)))) ? fma(t_3, t_3, Float32(t_2 * t_2)) : max(fma(t_3, t_3, Float32(t_2 * t_2)), fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))))))) tmp = Float32(0.0) if ((hypot(t_3, t_2) ^ Float32(2.0)) >= (hypot(t_0, t_1) ^ Float32(2.0))) tmp = Float32(t_2 / t_4); else tmp = Float32(t_1 * Float32(Float32(1.0) / t_4)); 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 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := \sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_3, t\_3, t\_2 \cdot t\_2\right), \mathsf{fma}\left(t\_0, t\_0, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_1\right)\right)\right)}\\
\mathbf{if}\;{\left(\mathsf{hypot}\left(t\_3, t\_2\right)\right)}^{2} \geq {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}:\\
\;\;\;\;\frac{t\_2}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{t\_4}\\
\end{array}
\end{array}
Initial program 74.5%
Simplified74.6%
pow274.6%
Applied egg-rr74.6%
Taylor expanded in w around 0 74.6%
Simplified74.6%
Final simplification74.6%
(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 (* dX.v (floor h)))
(t_3 (* t_2 t_2))
(t_4 (* (floor h) dY.v))
(t_5 (+ (* t_1 t_1) (* t_4 t_4))))
(if (>= (+ t_3 (pow t_0 2.0)) t_5)
(*
t_2
(/
1.0
(pow (fmax (pow (hypot t_0 t_2) 2.0) (pow (hypot t_1 t_4) 2.0)) 0.5)))
(* t_4 (/ 1.0 (sqrt (fmax (+ t_3 (* t_0 t_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 = dX_46_v * floorf(h);
float t_3 = t_2 * t_2;
float t_4 = floorf(h) * dY_46_v;
float t_5 = (t_1 * t_1) + (t_4 * t_4);
float tmp;
if ((t_3 + powf(t_0, 2.0f)) >= t_5) {
tmp = t_2 * (1.0f / powf(fmaxf(powf(hypotf(t_0, t_2), 2.0f), powf(hypotf(t_1, t_4), 2.0f)), 0.5f));
} else {
tmp = t_4 * (1.0f / sqrtf(fmaxf((t_3 + (t_0 * t_0)), t_5)));
}
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(dX_46_v * floor(h)) t_3 = Float32(t_2 * t_2) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(Float32(t_1 * t_1) + Float32(t_4 * t_4)) tmp = Float32(0.0) if (Float32(t_3 + (t_0 ^ Float32(2.0))) >= t_5) tmp = Float32(t_2 * Float32(Float32(1.0) / ((((hypot(t_0, t_2) ^ Float32(2.0)) != (hypot(t_0, t_2) ^ Float32(2.0))) ? (hypot(t_1, t_4) ^ Float32(2.0)) : (((hypot(t_1, t_4) ^ Float32(2.0)) != (hypot(t_1, t_4) ^ Float32(2.0))) ? (hypot(t_0, t_2) ^ Float32(2.0)) : max((hypot(t_0, t_2) ^ Float32(2.0)), (hypot(t_1, t_4) ^ Float32(2.0))))) ^ Float32(0.5)))); else tmp = Float32(t_4 * Float32(Float32(1.0) / sqrt(((Float32(t_3 + Float32(t_0 * t_0)) != Float32(t_3 + Float32(t_0 * t_0))) ? t_5 : ((t_5 != t_5) ? Float32(t_3 + Float32(t_0 * t_0)) : max(Float32(t_3 + Float32(t_0 * t_0)), t_5)))))); 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 = dX_46_v * floor(h); t_3 = t_2 * t_2; t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); tmp = single(0.0); if ((t_3 + (t_0 ^ single(2.0))) >= t_5) tmp = t_2 * (single(1.0) / (max((hypot(t_0, t_2) ^ single(2.0)), (hypot(t_1, t_4) ^ single(2.0))) ^ single(0.5))); else tmp = t_4 * (single(1.0) / sqrt(max((t_3 + (t_0 * t_0)), t_5))); 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 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_3 := t\_2 \cdot t\_2\\
t_4 := \left\lfloorh\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
\mathbf{if}\;t\_3 + {t\_0}^{2} \geq t\_5:\\
\;\;\;\;t\_2 \cdot \frac{1}{{\left(\mathsf{max}\left({\left(\mathsf{hypot}\left(t\_0, t\_2\right)\right)}^{2}, {\left(\mathsf{hypot}\left(t\_1, t\_4\right)\right)}^{2}\right)\right)}^{0.5}}\\
\mathbf{else}:\\
\;\;\;\;t\_4 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_3 + t\_0 \cdot t\_0, t\_5\right)}}\\
\end{array}
\end{array}
Initial program 74.5%
pow274.5%
Applied egg-rr74.5%
pow1/274.5%
Applied egg-rr74.5%
Final simplification74.5%
(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 (* dX.v (floor h)))
(t_3 (* dX.u (floor w)))
(t_4
(/
1.0
(sqrt
(fmax (+ (* t_2 t_2) (* t_3 t_3)) (+ (* t_0 t_0) (* t_1 t_1)))))))
(if (>= (pow (hypot t_3 t_2) 2.0) (pow (hypot t_0 t_1) 2.0))
(* t_2 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) * 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 = 1.0f / sqrtf(fmaxf(((t_2 * t_2) + (t_3 * t_3)), ((t_0 * t_0) + (t_1 * t_1))));
float tmp;
if (powf(hypotf(t_3, t_2), 2.0f) >= powf(hypotf(t_0, t_1), 2.0f)) {
tmp = t_2 * 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) * 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 = Float32(Float32(1.0) / sqrt(((Float32(Float32(t_2 * t_2) + Float32(t_3 * t_3)) != Float32(Float32(t_2 * t_2) + Float32(t_3 * t_3))) ? 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_2 * t_2) + Float32(t_3 * t_3)) : max(Float32(Float32(t_2 * t_2) + Float32(t_3 * t_3)), Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1))))))) tmp = Float32(0.0) if ((hypot(t_3, t_2) ^ Float32(2.0)) >= (hypot(t_0, t_1) ^ Float32(2.0))) tmp = Float32(t_2 * 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) * 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 = single(1.0) / sqrt(max(((t_2 * t_2) + (t_3 * t_3)), ((t_0 * t_0) + (t_1 * t_1)))); tmp = single(0.0); if ((hypot(t_3, t_2) ^ single(2.0)) >= (hypot(t_0, t_1) ^ single(2.0))) tmp = t_2 * 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 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 := \frac{1}{\sqrt{\mathsf{max}\left(t\_2 \cdot t\_2 + t\_3 \cdot t\_3, t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right)}}\\
\mathbf{if}\;{\left(\mathsf{hypot}\left(t\_3, t\_2\right)\right)}^{2} \geq {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}:\\
\;\;\;\;t\_2 \cdot t\_4\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot t\_4\\
\end{array}
\end{array}
Initial program 74.5%
pow274.5%
Applied egg-rr74.5%
pow274.6%
Applied egg-rr74.5%
Taylor expanded in w around 0 74.5%
*-commutative74.5%
unpow274.5%
unpow274.5%
swap-sqr74.5%
unpow274.5%
Simplified74.5%
Taylor expanded in w around 0 74.5%
Simplified74.5%
Final simplification74.5%
(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 (* dX.v (floor h)))
(t_3 (* dX.u (floor w)))
(t_4 (pow t_3 2.0))
(t_5
(sqrt
(fmax
(fma t_3 t_3 (* t_2 t_2))
(fma t_0 t_0 (* (floor h) (* dY.v t_1))))))
(t_6 (/ t_2 t_5)))
(if (<= dY.u 5.99999978589949e-8)
(if (>= t_4 (pow (hypot t_0 t_1) 2.0))
t_6
(*
t_1
(/
1.0
(sqrt
(fmax
(+ t_4 (pow t_2 2.0))
(fma (pow dY.u 2.0) (pow (floor w) 2.0) (pow t_1 2.0)))))))
(if (>= (pow (hypot t_3 t_2) 2.0) (pow t_0 2.0))
t_6
(* t_1 (/ 1.0 t_5))))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(w) * dY_46_u;
float t_1 = 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 = sqrtf(fmaxf(fmaf(t_3, t_3, (t_2 * t_2)), fmaf(t_0, t_0, (floorf(h) * (dY_46_v * t_1)))));
float t_6 = t_2 / t_5;
float tmp_1;
if (dY_46_u <= 5.99999978589949e-8f) {
float tmp_2;
if (t_4 >= powf(hypotf(t_0, t_1), 2.0f)) {
tmp_2 = t_6;
} else {
tmp_2 = t_1 * (1.0f / sqrtf(fmaxf((t_4 + powf(t_2, 2.0f)), fmaf(powf(dY_46_u, 2.0f), powf(floorf(w), 2.0f), powf(t_1, 2.0f)))));
}
tmp_1 = tmp_2;
} else if (powf(hypotf(t_3, t_2), 2.0f) >= powf(t_0, 2.0f)) {
tmp_1 = t_6;
} else {
tmp_1 = t_1 * (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(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 = sqrt(((fma(t_3, t_3, Float32(t_2 * t_2)) != fma(t_3, t_3, Float32(t_2 * t_2))) ? fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) : ((fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) != fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1)))) ? fma(t_3, t_3, Float32(t_2 * t_2)) : max(fma(t_3, t_3, Float32(t_2 * t_2)), fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))))))) t_6 = Float32(t_2 / t_5) tmp_1 = Float32(0.0) if (dY_46_u <= Float32(5.99999978589949e-8)) tmp_2 = Float32(0.0) if (t_4 >= (hypot(t_0, t_1) ^ Float32(2.0))) tmp_2 = t_6; else tmp_2 = Float32(t_1 * Float32(Float32(1.0) / sqrt(((Float32(t_4 + (t_2 ^ Float32(2.0))) != Float32(t_4 + (t_2 ^ Float32(2.0)))) ? fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0))) : ((fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0))) != fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0)))) ? Float32(t_4 + (t_2 ^ Float32(2.0))) : max(Float32(t_4 + (t_2 ^ Float32(2.0))), fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0))))))))); end tmp_1 = tmp_2; elseif ((hypot(t_3, t_2) ^ Float32(2.0)) >= (t_0 ^ Float32(2.0))) tmp_1 = t_6; else tmp_1 = Float32(t_1 * Float32(Float32(1.0) / t_5)); end return tmp_1 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 := \sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_3, t\_3, t\_2 \cdot t\_2\right), \mathsf{fma}\left(t\_0, t\_0, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_1\right)\right)\right)}\\
t_6 := \frac{t\_2}{t\_5}\\
\mathbf{if}\;dY.u \leq 5.99999978589949 \cdot 10^{-8}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_4 \geq {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_4 + {t\_2}^{2}, \mathsf{fma}\left({dY.u}^{2}, {\left(\left\lfloorw\right\rfloor\right)}^{2}, {t\_1}^{2}\right)\right)}}\\
\end{array}\\
\mathbf{elif}\;{\left(\mathsf{hypot}\left(t\_3, t\_2\right)\right)}^{2} \geq {t\_0}^{2}:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{t\_5}\\
\end{array}
\end{array}
if dY.u < 5.99999979e-8Initial program 74.3%
Simplified74.4%
pow274.4%
Applied egg-rr74.4%
Taylor expanded in w around 0 74.4%
Simplified74.4%
Taylor expanded in dX.u around inf 66.2%
unpow266.2%
unpow266.2%
swap-sqr66.2%
unpow266.2%
Simplified66.2%
Taylor expanded in w around 0 66.0%
+-commutative66.0%
*-commutative66.0%
unpow266.0%
unpow266.0%
swap-sqr66.0%
unpow266.0%
*-commutative66.0%
*-commutative66.0%
unpow266.0%
unpow266.0%
swap-sqr66.0%
unpow266.0%
*-commutative66.0%
fma-define66.0%
Simplified66.2%
if 5.99999979e-8 < dY.u Initial program 74.9%
Simplified75.0%
pow275.0%
Applied egg-rr75.0%
Taylor expanded in w around 0 75.0%
Simplified75.0%
Taylor expanded in dY.u around inf 73.9%
*-commutative65.6%
unpow265.6%
unpow265.6%
swap-sqr65.6%
unpow265.6%
Simplified73.9%
Final simplification68.9%
(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)))
(if (>= t_4 (pow (hypot t_0 t_1) 2.0))
(/
t_2
(sqrt
(fmax
(fma t_3 t_3 (* t_2 t_2))
(fma t_0 t_0 (* (floor h) (* dY.v t_1))))))
(*
t_1
(/
1.0
(sqrt
(fmax
(+ t_4 (pow t_2 2.0))
(fma (pow dY.u 2.0) (pow (floor w) 2.0) (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 = dX_46_v * floorf(h);
float t_3 = dX_46_u * floorf(w);
float t_4 = powf(t_3, 2.0f);
float tmp;
if (t_4 >= powf(hypotf(t_0, t_1), 2.0f)) {
tmp = t_2 / sqrtf(fmaxf(fmaf(t_3, t_3, (t_2 * t_2)), fmaf(t_0, t_0, (floorf(h) * (dY_46_v * t_1)))));
} else {
tmp = t_1 * (1.0f / sqrtf(fmaxf((t_4 + powf(t_2, 2.0f)), fmaf(powf(dY_46_u, 2.0f), powf(floorf(w), 2.0f), 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(dX_46_v * floor(h)) t_3 = Float32(dX_46_u * floor(w)) t_4 = t_3 ^ Float32(2.0) tmp = Float32(0.0) if (t_4 >= (hypot(t_0, t_1) ^ Float32(2.0))) tmp = Float32(t_2 / sqrt(((fma(t_3, t_3, Float32(t_2 * t_2)) != fma(t_3, t_3, Float32(t_2 * t_2))) ? fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) : ((fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) != fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1)))) ? fma(t_3, t_3, Float32(t_2 * t_2)) : max(fma(t_3, t_3, Float32(t_2 * t_2)), fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1)))))))); else tmp = Float32(t_1 * Float32(Float32(1.0) / sqrt(((Float32(t_4 + (t_2 ^ Float32(2.0))) != Float32(t_4 + (t_2 ^ Float32(2.0)))) ? fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0))) : ((fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0))) != fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0)))) ? Float32(t_4 + (t_2 ^ Float32(2.0))) : max(Float32(t_4 + (t_2 ^ Float32(2.0))), fma((dY_46_u ^ Float32(2.0)), (floor(w) ^ Float32(2.0)), (t_1 ^ Float32(2.0))))))))); 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 := dX.v \cdot \left\lfloorh\right\rfloor\\
t_3 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_4 := {t\_3}^{2}\\
\mathbf{if}\;t\_4 \geq {\left(\mathsf{hypot}\left(t\_0, t\_1\right)\right)}^{2}:\\
\;\;\;\;\frac{t\_2}{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_3, t\_3, t\_2 \cdot t\_2\right), \mathsf{fma}\left(t\_0, t\_0, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_1\right)\right)\right)}}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_4 + {t\_2}^{2}, \mathsf{fma}\left({dY.u}^{2}, {\left(\left\lfloorw\right\rfloor\right)}^{2}, {t\_1}^{2}\right)\right)}}\\
\end{array}
\end{array}
Initial program 74.5%
Simplified74.6%
pow274.6%
Applied egg-rr74.6%
Taylor expanded in w around 0 74.6%
Simplified74.6%
Taylor expanded in dX.u around inf 66.0%
unpow266.0%
unpow266.0%
swap-sqr66.0%
unpow266.0%
Simplified66.0%
Taylor expanded in w around 0 65.8%
+-commutative65.8%
*-commutative65.8%
unpow265.8%
unpow265.8%
swap-sqr65.8%
unpow265.8%
*-commutative65.8%
*-commutative65.8%
unpow265.8%
unpow265.8%
swap-sqr65.8%
unpow265.8%
*-commutative65.8%
fma-define65.8%
Simplified66.0%
Final simplification66.0%
(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
(sqrt
(fmax
(fma t_3 t_3 (* t_2 t_2))
(fma t_0 t_0 (* (floor h) (* dY.v t_1))))))
(t_5 (* t_1 (/ 1.0 t_4)))
(t_6 (/ t_2 t_4))
(t_7 (pow t_3 2.0)))
(if (<= dY.u 1.9999999494757503e-5)
(if (>= t_7 (pow t_1 2.0)) t_6 t_5)
(if (>= t_7 (pow t_0 2.0)) 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 = 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 = sqrtf(fmaxf(fmaf(t_3, t_3, (t_2 * t_2)), fmaf(t_0, t_0, (floorf(h) * (dY_46_v * t_1)))));
float t_5 = t_1 * (1.0f / t_4);
float t_6 = t_2 / t_4;
float t_7 = powf(t_3, 2.0f);
float tmp_1;
if (dY_46_u <= 1.9999999494757503e-5f) {
float tmp_2;
if (t_7 >= powf(t_1, 2.0f)) {
tmp_2 = t_6;
} else {
tmp_2 = t_5;
}
tmp_1 = tmp_2;
} else if (t_7 >= powf(t_0, 2.0f)) {
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(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 = sqrt(((fma(t_3, t_3, Float32(t_2 * t_2)) != fma(t_3, t_3, Float32(t_2 * t_2))) ? fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) : ((fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))) != fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1)))) ? fma(t_3, t_3, Float32(t_2 * t_2)) : max(fma(t_3, t_3, Float32(t_2 * t_2)), fma(t_0, t_0, Float32(floor(h) * Float32(dY_46_v * t_1))))))) t_5 = Float32(t_1 * Float32(Float32(1.0) / t_4)) t_6 = Float32(t_2 / t_4) t_7 = t_3 ^ Float32(2.0) tmp_1 = Float32(0.0) if (dY_46_u <= Float32(1.9999999494757503e-5)) tmp_2 = Float32(0.0) if (t_7 >= (t_1 ^ Float32(2.0))) tmp_2 = t_6; else tmp_2 = t_5; end tmp_1 = tmp_2; elseif (t_7 >= (t_0 ^ Float32(2.0))) tmp_1 = t_6; else tmp_1 = t_5; end return tmp_1 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 := \sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_3, t\_3, t\_2 \cdot t\_2\right), \mathsf{fma}\left(t\_0, t\_0, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_1\right)\right)\right)}\\
t_5 := t\_1 \cdot \frac{1}{t\_4}\\
t_6 := \frac{t\_2}{t\_4}\\
t_7 := {t\_3}^{2}\\
\mathbf{if}\;dY.u \leq 1.9999999494757503 \cdot 10^{-5}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_7 \geq {t\_1}^{2}:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_5\\
\end{array}\\
\mathbf{elif}\;t\_7 \geq {t\_0}^{2}:\\
\;\;\;\;t\_6\\
\mathbf{else}:\\
\;\;\;\;t\_5\\
\end{array}
\end{array}
if dY.u < 1.99999995e-5Initial program 75.2%
Simplified75.2%
pow275.2%
Applied egg-rr75.2%
Taylor expanded in w around 0 75.2%
Simplified75.2%
Taylor expanded in dX.u around inf 65.8%
unpow265.8%
unpow265.8%
swap-sqr65.8%
unpow265.8%
Simplified65.8%
Taylor expanded in dY.u around 0 63.4%
*-commutative63.4%
unpow263.4%
unpow263.4%
swap-sqr63.4%
unpow263.4%
Simplified63.4%
if 1.99999995e-5 < dY.u Initial program 73.2%
Simplified73.2%
pow273.2%
Applied egg-rr73.2%
Taylor expanded in w around 0 73.2%
Simplified73.2%
Taylor expanded in dX.u around inf 66.4%
unpow266.4%
unpow266.4%
swap-sqr66.4%
unpow266.4%
Simplified66.4%
Taylor expanded in dY.u around inf 66.4%
*-commutative66.4%
unpow266.4%
unpow266.4%
swap-sqr66.4%
unpow266.4%
Simplified66.4%
Final simplification64.3%
(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 (* dX.u (floor w)))
(t_3 (* (floor w) dY.u))
(t_4
(sqrt
(fmax
(fma t_2 t_2 (* t_1 t_1))
(fma t_3 t_3 (* (floor h) (* dY.v t_0)))))))
(if (>= (pow t_2 2.0) (pow t_0 2.0)) (/ 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 = dX_46_u * floorf(w);
float t_3 = floorf(w) * dY_46_u;
float t_4 = sqrtf(fmaxf(fmaf(t_2, t_2, (t_1 * t_1)), fmaf(t_3, t_3, (floorf(h) * (dY_46_v * t_0)))));
float tmp;
if (powf(t_2, 2.0f) >= powf(t_0, 2.0f)) {
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 = Float32(dX_46_u * floor(w)) t_3 = Float32(floor(w) * dY_46_u) t_4 = sqrt(((fma(t_2, t_2, Float32(t_1 * t_1)) != fma(t_2, t_2, Float32(t_1 * t_1))) ? fma(t_3, t_3, Float32(floor(h) * Float32(dY_46_v * t_0))) : ((fma(t_3, t_3, Float32(floor(h) * Float32(dY_46_v * t_0))) != fma(t_3, t_3, Float32(floor(h) * Float32(dY_46_v * t_0)))) ? fma(t_2, t_2, Float32(t_1 * t_1)) : max(fma(t_2, t_2, Float32(t_1 * t_1)), fma(t_3, t_3, Float32(floor(h) * Float32(dY_46_v * t_0))))))) tmp = Float32(0.0) if ((t_2 ^ Float32(2.0)) >= (t_0 ^ Float32(2.0))) tmp = Float32(t_1 / t_4); else tmp = Float32(t_0 * Float32(Float32(1.0) / t_4)); end return 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 := dX.u \cdot \left\lfloorw\right\rfloor\\
t_3 := \left\lfloorw\right\rfloor \cdot dY.u\\
t_4 := \sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_2, t\_2, t\_1 \cdot t\_1\right), \mathsf{fma}\left(t\_3, t\_3, \left\lfloorh\right\rfloor \cdot \left(dY.v \cdot t\_0\right)\right)\right)}\\
\mathbf{if}\;{t\_2}^{2} \geq {t\_0}^{2}:\\
\;\;\;\;\frac{t\_1}{t\_4}\\
\mathbf{else}:\\
\;\;\;\;t\_0 \cdot \frac{1}{t\_4}\\
\end{array}
\end{array}
Initial program 74.5%
Simplified74.6%
pow274.6%
Applied egg-rr74.6%
Taylor expanded in w around 0 74.6%
Simplified74.6%
Taylor expanded in dX.u around inf 66.0%
unpow266.0%
unpow266.0%
swap-sqr66.0%
unpow266.0%
Simplified66.0%
Taylor expanded in dY.u around 0 59.5%
*-commutative59.5%
unpow259.5%
unpow259.5%
swap-sqr59.5%
unpow259.5%
Simplified59.5%
Final simplification59.5%
herbie shell --seed 2024077
(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))))