
(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\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\_0\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_4\\
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 4 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\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\_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 (pow (* dY.v (floor h)) 2.0))
(t_1 (pow (* dX.u (floor w)) 2.0))
(t_2 (* dX.v (floor h)))
(t_3 (+ t_1 (pow (* (floor h) dX.v) 2.0)))
(t_4 (pow (* dY.u (floor w)) 2.0))
(t_5 (+ t_0 t_4)))
(if (>= t_3 t_5)
(/ (/ t_2 (- -1.0)) (sqrt (fmax (+ (pow t_2 2.0) t_1) t_5)))
(* (/ 1.0 (sqrt (fmax t_3 (+ t_4 t_0)))) (* (floor h) dY.v)))))
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((dY_46_v * floorf(h)), 2.0f);
float t_1 = powf((dX_46_u * floorf(w)), 2.0f);
float t_2 = dX_46_v * floorf(h);
float t_3 = t_1 + powf((floorf(h) * dX_46_v), 2.0f);
float t_4 = powf((dY_46_u * floorf(w)), 2.0f);
float t_5 = t_0 + t_4;
float tmp;
if (t_3 >= t_5) {
tmp = (t_2 / -(-1.0f)) / sqrtf(fmaxf((powf(t_2, 2.0f) + t_1), t_5));
} else {
tmp = (1.0f / sqrtf(fmaxf(t_3, (t_4 + t_0)))) * (floorf(h) * dY_46_v);
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(dY_46_v * floor(h)) ^ Float32(2.0) t_1 = Float32(dX_46_u * floor(w)) ^ Float32(2.0) t_2 = Float32(dX_46_v * floor(h)) t_3 = Float32(t_1 + (Float32(floor(h) * dX_46_v) ^ Float32(2.0))) t_4 = Float32(dY_46_u * floor(w)) ^ Float32(2.0) t_5 = Float32(t_0 + t_4) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(Float32(t_2 / Float32(-Float32(-1.0))) / sqrt(((Float32((t_2 ^ Float32(2.0)) + t_1) != Float32((t_2 ^ Float32(2.0)) + t_1)) ? t_5 : ((t_5 != t_5) ? Float32((t_2 ^ Float32(2.0)) + t_1) : max(Float32((t_2 ^ Float32(2.0)) + t_1), t_5))))); else tmp = Float32(Float32(Float32(1.0) / sqrt(((t_3 != t_3) ? Float32(t_4 + t_0) : ((Float32(t_4 + t_0) != Float32(t_4 + t_0)) ? t_3 : max(t_3, Float32(t_4 + t_0)))))) * Float32(floor(h) * dY_46_v)); 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 = (dY_46_v * floor(h)) ^ single(2.0); t_1 = (dX_46_u * floor(w)) ^ single(2.0); t_2 = dX_46_v * floor(h); t_3 = t_1 + ((floor(h) * dX_46_v) ^ single(2.0)); t_4 = (dY_46_u * floor(w)) ^ single(2.0); t_5 = t_0 + t_4; tmp = single(0.0); if (t_3 >= t_5) tmp = (t_2 / -single(-1.0)) / sqrt(max(((t_2 ^ single(2.0)) + t_1), t_5)); else tmp = (single(1.0) / sqrt(max(t_3, (t_4 + t_0)))) * (floor(h) * dY_46_v); end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\left(dY.v \cdot \left\lfloor h\right\rfloor \right)}^{2}\\
t_1 := {\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2}\\
t_2 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_3 := t\_1 + {\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2}\\
t_4 := {\left(dY.u \cdot \left\lfloor w\right\rfloor \right)}^{2}\\
t_5 := t\_0 + t\_4\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;\frac{\frac{t\_2}{--1}}{\sqrt{\mathsf{max}\left({t\_2}^{2} + t\_1, t\_5\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_4 + t\_0\right)}} \cdot \left(\left\lfloor h\right\rfloor \cdot dY.v\right)\\
\end{array}
\end{array}
Initial program 74.8%
lift-*.f32N/A
lift-/.f32N/A
associate-*l/N/A
frac-2negN/A
Applied rewrites74.9%
Applied rewrites74.9%
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-pow.f3274.9
Applied rewrites74.9%
lift-*.f32N/A
pow2N/A
lift-pow.f3274.9
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-pow.f32N/A
lift-*.f32N/A
pow2N/A
lower-pow.f32N/A
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
Applied rewrites74.9%
Final simplification74.9%
(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 (+ (* t_0 t_0) (* t_1 t_1)))
(t_3 (pow (floor w) 2.0))
(t_4 (* (floor w) dX.u))
(t_5 (* (floor h) dX.v))
(t_6 (* t_5 t_5)))
(if (>=
(+ (pow (* dX.u (floor w)) 2.0) (pow t_5 2.0))
(* (* t_3 dY.u) dY.u))
(* (/ 1.0 (sqrt (fmax (+ (* t_3 (* dX.u dX.u)) t_6) t_2))) t_5)
(* (/ 1.0 (sqrt (fmax (+ (* t_4 t_4) t_6) t_2))) 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 = (t_0 * t_0) + (t_1 * t_1);
float t_3 = powf(floorf(w), 2.0f);
float t_4 = floorf(w) * dX_46_u;
float t_5 = floorf(h) * dX_46_v;
float t_6 = t_5 * t_5;
float tmp;
if ((powf((dX_46_u * floorf(w)), 2.0f) + powf(t_5, 2.0f)) >= ((t_3 * dY_46_u) * dY_46_u)) {
tmp = (1.0f / sqrtf(fmaxf(((t_3 * (dX_46_u * dX_46_u)) + t_6), t_2))) * t_5;
} else {
tmp = (1.0f / sqrtf(fmaxf(((t_4 * t_4) + t_6), t_2))) * 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(Float32(t_0 * t_0) + Float32(t_1 * t_1)) t_3 = floor(w) ^ Float32(2.0) t_4 = Float32(floor(w) * dX_46_u) t_5 = Float32(floor(h) * dX_46_v) t_6 = Float32(t_5 * t_5) tmp = Float32(0.0) if (Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (t_5 ^ Float32(2.0))) >= Float32(Float32(t_3 * dY_46_u) * dY_46_u)) tmp = Float32(Float32(Float32(1.0) / sqrt(((Float32(Float32(t_3 * Float32(dX_46_u * dX_46_u)) + t_6) != Float32(Float32(t_3 * Float32(dX_46_u * dX_46_u)) + t_6)) ? t_2 : ((t_2 != t_2) ? Float32(Float32(t_3 * Float32(dX_46_u * dX_46_u)) + t_6) : max(Float32(Float32(t_3 * Float32(dX_46_u * dX_46_u)) + t_6), t_2))))) * t_5); else tmp = Float32(Float32(Float32(1.0) / sqrt(((Float32(Float32(t_4 * t_4) + t_6) != Float32(Float32(t_4 * t_4) + t_6)) ? t_2 : ((t_2 != t_2) ? Float32(Float32(t_4 * t_4) + t_6) : max(Float32(Float32(t_4 * t_4) + t_6), t_2))))) * 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 = (t_0 * t_0) + (t_1 * t_1); t_3 = floor(w) ^ single(2.0); t_4 = floor(w) * dX_46_u; t_5 = floor(h) * dX_46_v; t_6 = t_5 * t_5; tmp = single(0.0); if ((((dX_46_u * floor(w)) ^ single(2.0)) + (t_5 ^ single(2.0))) >= ((t_3 * dY_46_u) * dY_46_u)) tmp = (single(1.0) / sqrt(max(((t_3 * (dX_46_u * dX_46_u)) + t_6), t_2))) * t_5; else tmp = (single(1.0) / sqrt(max(((t_4 * t_4) + t_6), t_2))) * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_1 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_2 := t\_0 \cdot t\_0 + t\_1 \cdot t\_1\\
t_3 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_6 := t\_5 \cdot t\_5\\
\mathbf{if}\;{\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2} + {t\_5}^{2} \geq \left(t\_3 \cdot dY.u\right) \cdot dY.u:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_3 \cdot \left(dX.u \cdot dX.u\right) + t\_6, t\_2\right)}} \cdot t\_5\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_4 \cdot t\_4 + t\_6, t\_2\right)}} \cdot t\_1\\
\end{array}
\end{array}
Initial program 74.8%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-pow.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
pow2N/A
lift-pow.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
unpow2N/A
lift-pow.f32N/A
lift-*.f32N/A
lower-*.f3262.6
Applied rewrites62.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dX.u))
(t_1 (* (floor h) dX.v))
(t_2 (* (floor w) dY.u))
(t_3 (* (floor h) dY.v))
(t_4 (+ (* t_0 t_0) (* t_1 t_1)))
(t_5 (* (* (pow (floor w) 2.0) dY.u) dY.u))
(t_6 (* t_3 t_3)))
(if (>= (+ (pow (* dX.u (floor w)) 2.0) (pow t_1 2.0)) t_5)
(* (/ 1.0 (sqrt (fmax t_4 (+ (* t_2 t_2) t_6)))) t_1)
(* (/ 1.0 (sqrt (fmax t_4 (+ t_5 t_6)))) t_3))))
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(h) * dX_46_v;
float t_2 = floorf(w) * dY_46_u;
float t_3 = floorf(h) * dY_46_v;
float t_4 = (t_0 * t_0) + (t_1 * t_1);
float t_5 = (powf(floorf(w), 2.0f) * dY_46_u) * dY_46_u;
float t_6 = t_3 * t_3;
float tmp;
if ((powf((dX_46_u * floorf(w)), 2.0f) + powf(t_1, 2.0f)) >= t_5) {
tmp = (1.0f / sqrtf(fmaxf(t_4, ((t_2 * t_2) + t_6)))) * t_1;
} else {
tmp = (1.0f / sqrtf(fmaxf(t_4, (t_5 + t_6)))) * t_3;
}
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(h) * dX_46_v) t_2 = Float32(floor(w) * dY_46_u) t_3 = Float32(floor(h) * dY_46_v) t_4 = Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) t_5 = Float32(Float32((floor(w) ^ Float32(2.0)) * dY_46_u) * dY_46_u) t_6 = Float32(t_3 * t_3) tmp = Float32(0.0) if (Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (t_1 ^ Float32(2.0))) >= t_5) tmp = Float32(Float32(Float32(1.0) / sqrt(((t_4 != t_4) ? Float32(Float32(t_2 * t_2) + t_6) : ((Float32(Float32(t_2 * t_2) + t_6) != Float32(Float32(t_2 * t_2) + t_6)) ? t_4 : max(t_4, Float32(Float32(t_2 * t_2) + t_6)))))) * t_1); else tmp = Float32(Float32(Float32(1.0) / sqrt(((t_4 != t_4) ? Float32(t_5 + t_6) : ((Float32(t_5 + t_6) != Float32(t_5 + t_6)) ? t_4 : max(t_4, Float32(t_5 + t_6)))))) * t_3); 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; t_2 = floor(w) * dY_46_u; t_3 = floor(h) * dY_46_v; t_4 = (t_0 * t_0) + (t_1 * t_1); t_5 = ((floor(w) ^ single(2.0)) * dY_46_u) * dY_46_u; t_6 = t_3 * t_3; tmp = single(0.0); if ((((dX_46_u * floor(w)) ^ single(2.0)) + (t_1 ^ single(2.0))) >= t_5) tmp = (single(1.0) / sqrt(max(t_4, ((t_2 * t_2) + t_6)))) * t_1; else tmp = (single(1.0) / sqrt(max(t_4, (t_5 + t_6)))) * t_3; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_1 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_4 := t\_0 \cdot t\_0 + t\_1 \cdot t\_1\\
t_5 := \left({\left(\left\lfloor w\right\rfloor \right)}^{2} \cdot dY.u\right) \cdot dY.u\\
t_6 := t\_3 \cdot t\_3\\
\mathbf{if}\;{\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2} + {t\_1}^{2} \geq t\_5:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_4, t\_2 \cdot t\_2 + t\_6\right)}} \cdot t\_1\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_4, t\_5 + t\_6\right)}} \cdot t\_3\\
\end{array}
\end{array}
Initial program 74.8%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-pow.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
pow2N/A
lift-pow.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
unpow2N/A
lift-pow.f32N/A
associate-*l*N/A
lift-*.f32N/A
lift-*.f3262.6
Applied rewrites62.6%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor w) dY.u))
(t_2 (* (floor h) dY.v))
(t_3 (* (floor w) dX.u))
(t_4
(/
1.0
(sqrt
(fmax (+ (* t_3 t_3) (* t_0 t_0)) (+ (* t_1 t_1) (* t_2 t_2)))))))
(if (>=
(+ (pow (* dX.u (floor w)) 2.0) (pow t_0 2.0))
(pow (* dY.u (floor w)) 2.0))
(* t_4 t_0)
(* t_4 t_2))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(h) * dX_46_v;
float t_1 = floorf(w) * dY_46_u;
float t_2 = floorf(h) * dY_46_v;
float t_3 = floorf(w) * dX_46_u;
float t_4 = 1.0f / sqrtf(fmaxf(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2))));
float tmp;
if ((powf((dX_46_u * floorf(w)), 2.0f) + powf(t_0, 2.0f)) >= powf((dY_46_u * floorf(w)), 2.0f)) {
tmp = t_4 * t_0;
} else {
tmp = t_4 * t_2;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(w) * dY_46_u) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(floor(w) * dX_46_u) t_4 = Float32(Float32(1.0) / sqrt(((Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)) != Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0))) ? 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_3 * t_3) + Float32(t_0 * t_0)) : max(Float32(Float32(t_3 * t_3) + Float32(t_0 * t_0)), Float32(Float32(t_1 * t_1) + Float32(t_2 * t_2))))))) tmp = Float32(0.0) if (Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) >= (Float32(dY_46_u * floor(w)) ^ Float32(2.0))) tmp = Float32(t_4 * t_0); else tmp = Float32(t_4 * t_2); end return tmp end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(w) * dY_46_u; t_2 = floor(h) * dY_46_v; t_3 = floor(w) * dX_46_u; t_4 = single(1.0) / sqrt(max(((t_3 * t_3) + (t_0 * t_0)), ((t_1 * t_1) + (t_2 * t_2)))); tmp = single(0.0); if ((((dX_46_u * floor(w)) ^ single(2.0)) + (t_0 ^ single(2.0))) >= ((dY_46_u * floor(w)) ^ single(2.0))) tmp = t_4 * t_0; else tmp = t_4 * t_2; 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 h\right\rfloor \cdot dY.v\\
t_3 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_4 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3 \cdot t\_3 + t\_0 \cdot t\_0, t\_1 \cdot t\_1 + t\_2 \cdot t\_2\right)}}\\
\mathbf{if}\;{\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2} + {t\_0}^{2} \geq {\left(dY.u \cdot \left\lfloor w\right\rfloor \right)}^{2}:\\
\;\;\;\;t\_4 \cdot t\_0\\
\mathbf{else}:\\
\;\;\;\;t\_4 \cdot t\_2\\
\end{array}
\end{array}
Initial program 74.8%
Taylor expanded in dY.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-pow.f3262.6
Applied rewrites62.6%
lift-*.f32N/A
pow2N/A
lift-pow.f3262.6
Applied rewrites62.6%
Applied rewrites62.6%
herbie shell --seed 2024314
(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))))