
(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(fmax(t_3, t_5))) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_6 * t_2); else tmp = Float32(t_6 * t_1); end return tmp end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(w) * dY_46_u; t_2 = floor(w) * dX_46_u; t_3 = (t_2 * t_2) + (t_0 * t_0); t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); t_6 = single(1.0) / sqrt(max(t_3, t_5)); tmp = single(0.0); if (t_3 >= t_5) tmp = t_6 * t_2; else tmp = t_6 * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot t\_2\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_1\\
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 3 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(fmax(t_3, t_5))) tmp = Float32(0.0) if (t_3 >= t_5) tmp = Float32(t_6 * t_2); else tmp = Float32(t_6 * t_1); end return tmp end
function tmp_2 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(h) * dX_46_v; t_1 = floor(w) * dY_46_u; t_2 = floor(w) * dX_46_u; t_3 = (t_2 * t_2) + (t_0 * t_0); t_4 = floor(h) * dY_46_v; t_5 = (t_1 * t_1) + (t_4 * t_4); t_6 = single(1.0) / sqrt(max(t_3, t_5)); tmp = single(0.0); if (t_3 >= t_5) tmp = t_6 * t_2; else tmp = t_6 * t_1; end tmp_2 = tmp; end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + t\_0 \cdot t\_0\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := t\_1 \cdot t\_1 + t\_4 \cdot t\_4\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot t\_2\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_1\\
\end{array}
\end{array}
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (pow (floor h) 2.0))
(t_2 (* (floor w) dY.u))
(t_3 (pow (floor w) 2.0))
(t_4 (* (floor w) dX.u))
(t_5 (+ (* t_4 t_4) (* t_0 t_0)))
(t_6 (* (floor h) dY.v))
(t_7 (+ (* t_2 t_2) (* t_6 t_6))))
(if (>= t_5 t_7)
(*
(*
(pow
(fmax
(- (* (* dX.v dX.v) t_1) (* (* -1.0 (* dX.u dX.u)) t_3))
(- (* (* t_1 dY.v) dY.v) (* (* -1.0 (* dY.u t_3)) dY.u)))
-0.5)
dX.u)
(floor w))
(* (/ 1.0 (sqrt (fmax t_5 t_7))) 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 = powf(floorf(h), 2.0f);
float t_2 = floorf(w) * dY_46_u;
float t_3 = powf(floorf(w), 2.0f);
float t_4 = floorf(w) * dX_46_u;
float t_5 = (t_4 * t_4) + (t_0 * t_0);
float t_6 = floorf(h) * dY_46_v;
float t_7 = (t_2 * t_2) + (t_6 * t_6);
float tmp;
if (t_5 >= t_7) {
tmp = (powf(fmaxf((((dX_46_v * dX_46_v) * t_1) - ((-1.0f * (dX_46_u * dX_46_u)) * t_3)), (((t_1 * dY_46_v) * dY_46_v) - ((-1.0f * (dY_46_u * t_3)) * dY_46_u))), -0.5f) * dX_46_u) * floorf(w);
} else {
tmp = (1.0f / sqrtf(fmaxf(t_5, t_7))) * 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 = floor(h) ^ Float32(2.0) t_2 = Float32(floor(w) * dY_46_u) t_3 = floor(w) ^ Float32(2.0) t_4 = Float32(floor(w) * dX_46_u) t_5 = Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)) t_6 = Float32(floor(h) * dY_46_v) t_7 = Float32(Float32(t_2 * t_2) + Float32(t_6 * t_6)) tmp = Float32(0.0) if (t_5 >= t_7) tmp = Float32(Float32((fmax(Float32(Float32(Float32(dX_46_v * dX_46_v) * t_1) - Float32(Float32(Float32(-1.0) * Float32(dX_46_u * dX_46_u)) * t_3)), Float32(Float32(Float32(t_1 * dY_46_v) * dY_46_v) - Float32(Float32(Float32(-1.0) * Float32(dY_46_u * t_3)) * dY_46_u))) ^ Float32(-0.5)) * dX_46_u) * floor(w)); else tmp = Float32(Float32(Float32(1.0) / sqrt(fmax(t_5, t_7))) * 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(h) ^ single(2.0); t_2 = floor(w) * dY_46_u; t_3 = floor(w) ^ single(2.0); t_4 = floor(w) * dX_46_u; t_5 = (t_4 * t_4) + (t_0 * t_0); t_6 = floor(h) * dY_46_v; t_7 = (t_2 * t_2) + (t_6 * t_6); tmp = single(0.0); if (t_5 >= t_7) tmp = ((max((((dX_46_v * dX_46_v) * t_1) - ((single(-1.0) * (dX_46_u * dX_46_u)) * t_3)), (((t_1 * dY_46_v) * dY_46_v) - ((single(-1.0) * (dY_46_u * t_3)) * dY_46_u))) ^ single(-0.5)) * dX_46_u) * floor(w); else tmp = (single(1.0) / sqrt(max(t_5, t_7))) * 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(\left\lfloor h\right\rfloor \right)}^{2}\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := t\_4 \cdot t\_4 + t\_0 \cdot t\_0\\
t_6 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_7 := t\_2 \cdot t\_2 + t\_6 \cdot t\_6\\
\mathbf{if}\;t\_5 \geq t\_7:\\
\;\;\;\;\left({\left(\mathsf{max}\left(\left(dX.v \cdot dX.v\right) \cdot t\_1 - \left(-1 \cdot \left(dX.u \cdot dX.u\right)\right) \cdot t\_3, \left(t\_1 \cdot dY.v\right) \cdot dY.v - \left(-1 \cdot \left(dY.u \cdot t\_3\right)\right) \cdot dY.u\right)\right)}^{-0.5} \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_5, t\_7\right)}} \cdot t\_2\\
\end{array}
\end{array}
Initial program 75.4%
Applied rewrites75.4%
lift-*.f32N/A
lift-floor.f32N/A
lift-pow.f32N/A
unpow2N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3275.4
Applied rewrites75.4%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
associate-*r*N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
lower-*.f32N/A
unpow2N/A
lower-*.f32N/A
lift-pow.f32N/A
lift-floor.f3275.4
lift-neg.f32N/A
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-pow.f32N/A
distribute-rgt-neg-outN/A
Applied rewrites75.5%
Final simplification75.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (pow (floor h) 2.0))
(t_2 (pow (floor w) 2.0))
(t_3 (* (floor w) dY.u))
(t_4 (* (floor w) dX.u))
(t_5 (+ (* t_4 t_4) (* t_0 t_0)))
(t_6 (* (floor h) dY.v))
(t_7 (+ (* t_3 t_3) (* t_6 t_6))))
(if (>= t_5 t_7)
(*
dX.u
(*
(floor w)
(pow
(fmax
(fma (* dX.v dX.v) t_1 (* (* t_2 dX.u) dX.u))
(fma (* dY.v dY.v) t_1 (* (* t_2 dY.u) dY.u)))
-0.5)))
(* (/ 1.0 (sqrt (fmax t_5 t_7))) 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(h) * dX_46_v;
float t_1 = powf(floorf(h), 2.0f);
float t_2 = powf(floorf(w), 2.0f);
float t_3 = floorf(w) * dY_46_u;
float t_4 = floorf(w) * dX_46_u;
float t_5 = (t_4 * t_4) + (t_0 * t_0);
float t_6 = floorf(h) * dY_46_v;
float t_7 = (t_3 * t_3) + (t_6 * t_6);
float tmp;
if (t_5 >= t_7) {
tmp = dX_46_u * (floorf(w) * powf(fmaxf(fmaf((dX_46_v * dX_46_v), t_1, ((t_2 * dX_46_u) * dX_46_u)), fmaf((dY_46_v * dY_46_v), t_1, ((t_2 * dY_46_u) * dY_46_u))), -0.5f));
} else {
tmp = (1.0f / sqrtf(fmaxf(t_5, t_7))) * 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(h) * dX_46_v) t_1 = floor(h) ^ Float32(2.0) t_2 = floor(w) ^ Float32(2.0) t_3 = Float32(floor(w) * dY_46_u) t_4 = Float32(floor(w) * dX_46_u) t_5 = Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)) t_6 = Float32(floor(h) * dY_46_v) t_7 = Float32(Float32(t_3 * t_3) + Float32(t_6 * t_6)) tmp = Float32(0.0) if (t_5 >= t_7) tmp = Float32(dX_46_u * Float32(floor(w) * (fmax(fma(Float32(dX_46_v * dX_46_v), t_1, Float32(Float32(t_2 * dX_46_u) * dX_46_u)), fma(Float32(dY_46_v * dY_46_v), t_1, Float32(Float32(t_2 * dY_46_u) * dY_46_u))) ^ Float32(-0.5)))); else tmp = Float32(Float32(Float32(1.0) / sqrt(fmax(t_5, t_7))) * t_3); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_2 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_3 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := t\_4 \cdot t\_4 + t\_0 \cdot t\_0\\
t_6 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_7 := t\_3 \cdot t\_3 + t\_6 \cdot t\_6\\
\mathbf{if}\;t\_5 \geq t\_7:\\
\;\;\;\;dX.u \cdot \left(\left\lfloor w\right\rfloor \cdot {\left(\mathsf{max}\left(\mathsf{fma}\left(dX.v \cdot dX.v, t\_1, \left(t\_2 \cdot dX.u\right) \cdot dX.u\right), \mathsf{fma}\left(dY.v \cdot dY.v, t\_1, \left(t\_2 \cdot dY.u\right) \cdot dY.u\right)\right)\right)}^{-0.5}\right)\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_5, t\_7\right)}} \cdot t\_3\\
\end{array}
\end{array}
Initial program 75.4%
Applied rewrites75.4%
lift-*.f32N/A
lift-floor.f32N/A
lift-pow.f32N/A
unpow2N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3275.4
Applied rewrites75.4%
Applied rewrites75.4%
Final simplification75.4%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (pow (floor w) 2.0))
(t_2 (* (floor w) dY.u))
(t_3 (* (floor h) dY.v))
(t_4 (pow (floor h) 2.0))
(t_5 (* (floor w) dX.u))
(t_6 (+ (* t_5 t_5) (* t_0 t_0))))
(if (>= t_6 (* (* dY.v dY.v) t_4))
(*
(pow
(fmax
(- (* (* dX.v dX.v) t_4) (* (* -1.0 t_1) (* dX.u dX.u)))
(/
(fma
(pow (* (* dY.v dY.v) dY.v) 2.0)
(pow t_4 3.0)
(* (pow (* (* -1.0 dY.u) dY.u) 3.0) (pow t_1 3.0)))
(-
(fma
(pow (* t_1 dY.u) 2.0)
(* dY.u dY.u)
(* (pow t_4 2.0) (pow (* dY.v dY.v) 2.0)))
(* (* (* t_4 t_1) (* dY.v dY.v)) (* dY.u dY.u)))))
-0.5)
t_5)
(* (/ 1.0 (sqrt (fmax t_6 (+ (* t_2 t_2) (* t_3 t_3))))) 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 = powf(floorf(w), 2.0f);
float t_2 = floorf(w) * dY_46_u;
float t_3 = floorf(h) * dY_46_v;
float t_4 = powf(floorf(h), 2.0f);
float t_5 = floorf(w) * dX_46_u;
float t_6 = (t_5 * t_5) + (t_0 * t_0);
float tmp;
if (t_6 >= ((dY_46_v * dY_46_v) * t_4)) {
tmp = powf(fmaxf((((dX_46_v * dX_46_v) * t_4) - ((-1.0f * t_1) * (dX_46_u * dX_46_u))), (fmaf(powf(((dY_46_v * dY_46_v) * dY_46_v), 2.0f), powf(t_4, 3.0f), (powf(((-1.0f * dY_46_u) * dY_46_u), 3.0f) * powf(t_1, 3.0f))) / (fmaf(powf((t_1 * dY_46_u), 2.0f), (dY_46_u * dY_46_u), (powf(t_4, 2.0f) * powf((dY_46_v * dY_46_v), 2.0f))) - (((t_4 * t_1) * (dY_46_v * dY_46_v)) * (dY_46_u * dY_46_u))))), -0.5f) * t_5;
} else {
tmp = (1.0f / sqrtf(fmaxf(t_6, ((t_2 * t_2) + (t_3 * t_3))))) * 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 = floor(w) ^ Float32(2.0) t_2 = Float32(floor(w) * dY_46_u) t_3 = Float32(floor(h) * dY_46_v) t_4 = floor(h) ^ Float32(2.0) t_5 = Float32(floor(w) * dX_46_u) t_6 = Float32(Float32(t_5 * t_5) + Float32(t_0 * t_0)) tmp = Float32(0.0) if (t_6 >= Float32(Float32(dY_46_v * dY_46_v) * t_4)) tmp = Float32((fmax(Float32(Float32(Float32(dX_46_v * dX_46_v) * t_4) - Float32(Float32(Float32(-1.0) * t_1) * Float32(dX_46_u * dX_46_u))), Float32(fma((Float32(Float32(dY_46_v * dY_46_v) * dY_46_v) ^ Float32(2.0)), (t_4 ^ Float32(3.0)), Float32((Float32(Float32(Float32(-1.0) * dY_46_u) * dY_46_u) ^ Float32(3.0)) * (t_1 ^ Float32(3.0)))) / Float32(fma((Float32(t_1 * dY_46_u) ^ Float32(2.0)), Float32(dY_46_u * dY_46_u), Float32((t_4 ^ Float32(2.0)) * (Float32(dY_46_v * dY_46_v) ^ Float32(2.0)))) - Float32(Float32(Float32(t_4 * t_1) * Float32(dY_46_v * dY_46_v)) * Float32(dY_46_u * dY_46_u))))) ^ Float32(-0.5)) * t_5); else tmp = Float32(Float32(Float32(1.0) / sqrt(fmax(t_6, Float32(Float32(t_2 * t_2) + Float32(t_3 * t_3))))) * t_2); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_3 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_4 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_5 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_6 := t\_5 \cdot t\_5 + t\_0 \cdot t\_0\\
\mathbf{if}\;t\_6 \geq \left(dY.v \cdot dY.v\right) \cdot t\_4:\\
\;\;\;\;{\left(\mathsf{max}\left(\left(dX.v \cdot dX.v\right) \cdot t\_4 - \left(-1 \cdot t\_1\right) \cdot \left(dX.u \cdot dX.u\right), \frac{\mathsf{fma}\left({\left(\left(dY.v \cdot dY.v\right) \cdot dY.v\right)}^{2}, {t\_4}^{3}, {\left(\left(-1 \cdot dY.u\right) \cdot dY.u\right)}^{3} \cdot {t\_1}^{3}\right)}{\mathsf{fma}\left({\left(t\_1 \cdot dY.u\right)}^{2}, dY.u \cdot dY.u, {t\_4}^{2} \cdot {\left(dY.v \cdot dY.v\right)}^{2}\right) - \left(\left(t\_4 \cdot t\_1\right) \cdot \left(dY.v \cdot dY.v\right)\right) \cdot \left(dY.u \cdot dY.u\right)}\right)\right)}^{-0.5} \cdot t\_5\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_6, t\_2 \cdot t\_2 + t\_3 \cdot t\_3\right)}} \cdot t\_2\\
\end{array}
\end{array}
Initial program 75.4%
Taylor expanded in dX.u around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lift-floor.f3261.7
Applied rewrites61.7%
Applied rewrites59.2%
Taylor expanded in dY.u around 0
lower-*.f32N/A
unpow2N/A
lower-*.f32N/A
lift-pow.f32N/A
lift-floor.f3253.6
Applied rewrites53.6%
Taylor expanded in w around 0
Applied rewrites64.7%
Final simplification64.7%
herbie shell --seed 2025065
(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))))