
(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(fmax(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}
Herbie found 6 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(fmax(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
(fma
(* (* dX.v (floor h)) dX.v)
(floor h)
(* (* (* dX.u (floor w)) dX.u) (floor w))))
(t_1 (* (* dY.u (floor w)) dY.u))
(t_2 (* (* dY.v (floor h)) dY.v))
(t_3 (fma t_1 (floor w) (* t_2 (floor h)))))
(if (>=
(fma
(* (* (floor w) (floor w)) dX.u)
dX.u
(* (* (* (floor h) (floor h)) dX.v) dX.v))
t_3)
(/
(* (- dX.v) (floor h))
(- (sqrt (fmax t_0 (fma t_2 (floor h) (* t_1 (floor w)))))))
(/ (* (- dY.v) (floor h)) (- (sqrt (fmax t_0 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 = fmaf(((dX_46_v * floorf(h)) * dX_46_v), floorf(h), (((dX_46_u * floorf(w)) * dX_46_u) * floorf(w)));
float t_1 = (dY_46_u * floorf(w)) * dY_46_u;
float t_2 = (dY_46_v * floorf(h)) * dY_46_v;
float t_3 = fmaf(t_1, floorf(w), (t_2 * floorf(h)));
float tmp;
if (fmaf(((floorf(w) * floorf(w)) * dX_46_u), dX_46_u, (((floorf(h) * floorf(h)) * dX_46_v) * dX_46_v)) >= t_3) {
tmp = (-dX_46_v * floorf(h)) / -sqrtf(fmaxf(t_0, fmaf(t_2, floorf(h), (t_1 * floorf(w)))));
} else {
tmp = (-dY_46_v * floorf(h)) / -sqrtf(fmaxf(t_0, t_3));
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = fma(Float32(Float32(dX_46_v * floor(h)) * dX_46_v), floor(h), Float32(Float32(Float32(dX_46_u * floor(w)) * dX_46_u) * floor(w))) t_1 = Float32(Float32(dY_46_u * floor(w)) * dY_46_u) t_2 = Float32(Float32(dY_46_v * floor(h)) * dY_46_v) t_3 = fma(t_1, floor(w), Float32(t_2 * floor(h))) tmp = Float32(0.0) if (fma(Float32(Float32(floor(w) * floor(w)) * dX_46_u), dX_46_u, Float32(Float32(Float32(floor(h) * floor(h)) * dX_46_v) * dX_46_v)) >= t_3) tmp = Float32(Float32(Float32(-dX_46_v) * floor(h)) / Float32(-sqrt(fmax(t_0, fma(t_2, floor(h), Float32(t_1 * floor(w))))))); else tmp = Float32(Float32(Float32(-dY_46_v) * floor(h)) / Float32(-sqrt(fmax(t_0, t_3)))); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{fma}\left(\left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v, \left\lfloor h\right\rfloor , \left(\left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor \right)\\
t_1 := \left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\\
t_2 := \left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\\
t_3 := \mathsf{fma}\left(t\_1, \left\lfloor w\right\rfloor , t\_2 \cdot \left\lfloor h\right\rfloor \right)\\
\mathbf{if}\;\mathsf{fma}\left(\left(\left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u, dX.u, \left(\left(\left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\right) \cdot dX.v\right) \geq t\_3:\\
\;\;\;\;\frac{\left(-dX.v\right) \cdot \left\lfloor h\right\rfloor }{-\sqrt{\mathsf{max}\left(t\_0, \mathsf{fma}\left(t\_2, \left\lfloor h\right\rfloor , t\_1 \cdot \left\lfloor w\right\rfloor \right)\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(-dY.v\right) \cdot \left\lfloor h\right\rfloor }{-\sqrt{\mathsf{max}\left(t\_0, t\_3\right)}}\\
\end{array}
\end{array}
Initial program 76.8%
Applied rewrites76.9%
Applied rewrites77.0%
Applied rewrites77.0%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor h)))
(t_1
(fma
(* (* dY.u (floor w)) dY.u)
(floor w)
(* (* (* dY.v (floor h)) dY.v) (floor h))))
(t_2 (* (floor w) (floor w))))
(if (>= (fma (* t_2 dX.u) dX.u (* (* t_0 dX.v) dX.v)) t_1)
(*
(/
dX.v
(sqrt
(fmax
(fma (* dX.u dX.u) t_2 (* (* dX.v dX.v) t_0))
(fma (* dY.u dY.u) t_2 (* (* dY.v dY.v) t_0)))))
(floor h))
(/
(* (- dY.v) (floor h))
(-
(sqrt
(fmax
(fma
(* (* dX.v (floor h)) dX.v)
(floor h)
(* (* (* dX.u (floor w)) dX.u) (floor w)))
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) * floorf(h);
float t_1 = fmaf(((dY_46_u * floorf(w)) * dY_46_u), floorf(w), (((dY_46_v * floorf(h)) * dY_46_v) * floorf(h)));
float t_2 = floorf(w) * floorf(w);
float tmp;
if (fmaf((t_2 * dX_46_u), dX_46_u, ((t_0 * dX_46_v) * dX_46_v)) >= t_1) {
tmp = (dX_46_v / sqrtf(fmaxf(fmaf((dX_46_u * dX_46_u), t_2, ((dX_46_v * dX_46_v) * t_0)), fmaf((dY_46_u * dY_46_u), t_2, ((dY_46_v * dY_46_v) * t_0))))) * floorf(h);
} else {
tmp = (-dY_46_v * floorf(h)) / -sqrtf(fmaxf(fmaf(((dX_46_v * floorf(h)) * dX_46_v), floorf(h), (((dX_46_u * floorf(w)) * dX_46_u) * floorf(w))), 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) * floor(h)) t_1 = fma(Float32(Float32(dY_46_u * floor(w)) * dY_46_u), floor(w), Float32(Float32(Float32(dY_46_v * floor(h)) * dY_46_v) * floor(h))) t_2 = Float32(floor(w) * floor(w)) tmp = Float32(0.0) if (fma(Float32(t_2 * dX_46_u), dX_46_u, Float32(Float32(t_0 * dX_46_v) * dX_46_v)) >= t_1) tmp = Float32(Float32(dX_46_v / sqrt(fmax(fma(Float32(dX_46_u * dX_46_u), t_2, Float32(Float32(dX_46_v * dX_46_v) * t_0)), fma(Float32(dY_46_u * dY_46_u), t_2, Float32(Float32(dY_46_v * dY_46_v) * t_0))))) * floor(h)); else tmp = Float32(Float32(Float32(-dY_46_v) * floor(h)) / Float32(-sqrt(fmax(fma(Float32(Float32(dX_46_v * floor(h)) * dX_46_v), floor(h), Float32(Float32(Float32(dX_46_u * floor(w)) * dX_46_u) * floor(w))), t_1)))); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \\
t_1 := \mathsf{fma}\left(\left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u, \left\lfloor w\right\rfloor , \left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\right) \cdot \left\lfloor h\right\rfloor \right)\\
t_2 := \left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \\
\mathbf{if}\;\mathsf{fma}\left(t\_2 \cdot dX.u, dX.u, \left(t\_0 \cdot dX.v\right) \cdot dX.v\right) \geq t\_1:\\
\;\;\;\;\frac{dX.v}{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(dX.u \cdot dX.u, t\_2, \left(dX.v \cdot dX.v\right) \cdot t\_0\right), \mathsf{fma}\left(dY.u \cdot dY.u, t\_2, \left(dY.v \cdot dY.v\right) \cdot t\_0\right)\right)}} \cdot \left\lfloor h\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{\left(-dY.v\right) \cdot \left\lfloor h\right\rfloor }{-\sqrt{\mathsf{max}\left(\mathsf{fma}\left(\left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v, \left\lfloor h\right\rfloor , \left(\left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor \right), t\_1\right)}}\\
\end{array}
\end{array}
Initial program 76.8%
Applied rewrites76.9%
Applied rewrites77.0%
Applied rewrites77.0%
Applied rewrites76.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fma
(* (* dY.u (floor w)) dY.u)
(floor w)
(* (* (* dY.v (floor h)) dY.v) (floor h))))
(t_1
(fma
(* (* dX.v dX.v) (floor h))
(floor h)
(* (* (* dX.u (floor w)) dX.u) (floor w))))
(t_2 (/ (floor h) (sqrt (fmax t_1 t_0)))))
(if (>= t_1 t_0) (* t_2 dX.v) (* t_2 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 = fmaf(((dY_46_u * floorf(w)) * dY_46_u), floorf(w), (((dY_46_v * floorf(h)) * dY_46_v) * floorf(h)));
float t_1 = fmaf(((dX_46_v * dX_46_v) * floorf(h)), floorf(h), (((dX_46_u * floorf(w)) * dX_46_u) * floorf(w)));
float t_2 = floorf(h) / sqrtf(fmaxf(t_1, t_0));
float tmp;
if (t_1 >= t_0) {
tmp = t_2 * dX_46_v;
} else {
tmp = t_2 * dY_46_v;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = fma(Float32(Float32(dY_46_u * floor(w)) * dY_46_u), floor(w), Float32(Float32(Float32(dY_46_v * floor(h)) * dY_46_v) * floor(h))) t_1 = fma(Float32(Float32(dX_46_v * dX_46_v) * floor(h)), floor(h), Float32(Float32(Float32(dX_46_u * floor(w)) * dX_46_u) * floor(w))) t_2 = Float32(floor(h) / sqrt(fmax(t_1, t_0))) tmp = Float32(0.0) if (t_1 >= t_0) tmp = Float32(t_2 * dX_46_v); else tmp = Float32(t_2 * dY_46_v); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{fma}\left(\left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u, \left\lfloor w\right\rfloor , \left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\right) \cdot \left\lfloor h\right\rfloor \right)\\
t_1 := \mathsf{fma}\left(\left(dX.v \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor , \left\lfloor h\right\rfloor , \left(\left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor \right)\\
t_2 := \frac{\left\lfloor h\right\rfloor }{\sqrt{\mathsf{max}\left(t\_1, t\_0\right)}}\\
\mathbf{if}\;t\_1 \geq t\_0:\\
\;\;\;\;t\_2 \cdot dX.v\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot dY.v\\
\end{array}
\end{array}
Initial program 76.8%
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fma
(* (* dY.u (floor w)) dY.u)
(floor w)
(* (* (* dY.v (floor h)) dY.v) (floor h))))
(t_1
(fma
(* (* dX.v dX.v) (floor h))
(floor h)
(* (* (* dX.u dX.u) (floor w)) (floor w))))
(t_2 (/ (floor h) (sqrt (fmax t_1 t_0)))))
(if (>= t_1 t_0) (* t_2 dX.v) (* t_2 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 = fmaf(((dY_46_u * floorf(w)) * dY_46_u), floorf(w), (((dY_46_v * floorf(h)) * dY_46_v) * floorf(h)));
float t_1 = fmaf(((dX_46_v * dX_46_v) * floorf(h)), floorf(h), (((dX_46_u * dX_46_u) * floorf(w)) * floorf(w)));
float t_2 = floorf(h) / sqrtf(fmaxf(t_1, t_0));
float tmp;
if (t_1 >= t_0) {
tmp = t_2 * dX_46_v;
} else {
tmp = t_2 * dY_46_v;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = fma(Float32(Float32(dY_46_u * floor(w)) * dY_46_u), floor(w), Float32(Float32(Float32(dY_46_v * floor(h)) * dY_46_v) * floor(h))) t_1 = fma(Float32(Float32(dX_46_v * dX_46_v) * floor(h)), floor(h), Float32(Float32(Float32(dX_46_u * dX_46_u) * floor(w)) * floor(w))) t_2 = Float32(floor(h) / sqrt(fmax(t_1, t_0))) tmp = Float32(0.0) if (t_1 >= t_0) tmp = Float32(t_2 * dX_46_v); else tmp = Float32(t_2 * dY_46_v); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{fma}\left(\left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u, \left\lfloor w\right\rfloor , \left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\right) \cdot \left\lfloor h\right\rfloor \right)\\
t_1 := \mathsf{fma}\left(\left(dX.v \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor , \left\lfloor h\right\rfloor , \left(\left(dX.u \cdot dX.u\right) \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor w\right\rfloor \right)\\
t_2 := \frac{\left\lfloor h\right\rfloor }{\sqrt{\mathsf{max}\left(t\_1, t\_0\right)}}\\
\mathbf{if}\;t\_1 \geq t\_0:\\
\;\;\;\;t\_2 \cdot dX.v\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot dY.v\\
\end{array}
\end{array}
Initial program 76.8%
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
lower-*.f3276.7
Applied rewrites76.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor h)))
(t_1 (* (floor w) (floor w)))
(t_2 (fma (* dY.u dY.u) t_1 (* (* dY.v dY.v) t_0)))
(t_3 (fma (* dX.u dX.u) t_1 (* (* dX.v dX.v) t_0)))
(t_4 (/ (floor h) (sqrt (fmax t_3 t_2)))))
(if (>= t_3 t_2) (* t_4 dX.v) (* t_4 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 = floorf(h) * floorf(h);
float t_1 = floorf(w) * floorf(w);
float t_2 = fmaf((dY_46_u * dY_46_u), t_1, ((dY_46_v * dY_46_v) * t_0));
float t_3 = fmaf((dX_46_u * dX_46_u), t_1, ((dX_46_v * dX_46_v) * t_0));
float t_4 = floorf(h) / sqrtf(fmaxf(t_3, t_2));
float tmp;
if (t_3 >= t_2) {
tmp = t_4 * dX_46_v;
} else {
tmp = t_4 * 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(floor(h) * floor(h)) t_1 = Float32(floor(w) * floor(w)) t_2 = fma(Float32(dY_46_u * dY_46_u), t_1, Float32(Float32(dY_46_v * dY_46_v) * t_0)) t_3 = fma(Float32(dX_46_u * dX_46_u), t_1, Float32(Float32(dX_46_v * dX_46_v) * t_0)) t_4 = Float32(floor(h) / sqrt(fmax(t_3, t_2))) tmp = Float32(0.0) if (t_3 >= t_2) tmp = Float32(t_4 * dX_46_v); else tmp = Float32(t_4 * dY_46_v); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \\
t_1 := \left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_2 := \mathsf{fma}\left(dY.u \cdot dY.u, t\_1, \left(dY.v \cdot dY.v\right) \cdot t\_0\right)\\
t_3 := \mathsf{fma}\left(dX.u \cdot dX.u, t\_1, \left(dX.v \cdot dX.v\right) \cdot t\_0\right)\\
t_4 := \frac{\left\lfloor h\right\rfloor }{\sqrt{\mathsf{max}\left(t\_3, t\_2\right)}}\\
\mathbf{if}\;t\_3 \geq t\_2:\\
\;\;\;\;t\_4 \cdot dX.v\\
\mathbf{else}:\\
\;\;\;\;t\_4 \cdot dY.v\\
\end{array}
\end{array}
Initial program 76.8%
Applied rewrites76.9%
Applied rewrites77.0%
Applied rewrites77.0%
Applied rewrites76.7%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fma
(* dY.u dY.u)
(* (floor w) (floor w))
(* (* dY.v dY.v) (* (floor h) (floor h)))))
(t_1 (* dX.v (floor h)))
(t_2 (* (* (- (fabs t_1)) (floor h)) dX.v))
(t_3 (sqrt (fmax t_2 t_0))))
(if (>= t_2 t_0) (/ t_1 t_3) (/ (* dY.v (floor h)) 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 = fmaf((dY_46_u * dY_46_u), (floorf(w) * floorf(w)), ((dY_46_v * dY_46_v) * (floorf(h) * floorf(h))));
float t_1 = dX_46_v * floorf(h);
float t_2 = (-fabsf(t_1) * floorf(h)) * dX_46_v;
float t_3 = sqrtf(fmaxf(t_2, t_0));
float tmp;
if (t_2 >= t_0) {
tmp = t_1 / t_3;
} else {
tmp = (dY_46_v * floorf(h)) / t_3;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = fma(Float32(dY_46_u * dY_46_u), Float32(floor(w) * floor(w)), Float32(Float32(dY_46_v * dY_46_v) * Float32(floor(h) * floor(h)))) t_1 = Float32(dX_46_v * floor(h)) t_2 = Float32(Float32(Float32(-abs(t_1)) * floor(h)) * dX_46_v) t_3 = sqrt(fmax(t_2, t_0)) tmp = Float32(0.0) if (t_2 >= t_0) tmp = Float32(t_1 / t_3); else tmp = Float32(Float32(dY_46_v * floor(h)) / t_3); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{fma}\left(dY.u \cdot dY.u, \left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor , \left(dY.v \cdot dY.v\right) \cdot \left(\left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \right)\right)\\
t_1 := dX.v \cdot \left\lfloor h\right\rfloor \\
t_2 := \left(\left(-\left|t\_1\right|\right) \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\\
t_3 := \sqrt{\mathsf{max}\left(t\_2, t\_0\right)}\\
\mathbf{if}\;t\_2 \geq t\_0:\\
\;\;\;\;\frac{t\_1}{t\_3}\\
\mathbf{else}:\\
\;\;\;\;\frac{dY.v \cdot \left\lfloor h\right\rfloor }{t\_3}\\
\end{array}
\end{array}
Initial program 76.8%
Applied rewrites76.7%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
sqr-neg-revN/A
lift-neg.f32N/A
lift-neg.f32N/A
associate-*l*N/A
lift-neg.f32N/A
distribute-lft-neg-outN/A
*-commutativeN/A
lift-*.f32N/A
rem-exp-logN/A
lift-*.f32N/A
*-commutativeN/A
distribute-lft-neg-outN/A
lift-neg.f32N/A
lift-*.f32N/A
lift-log.f32N/A
exp-fabsN/A
lift-log.f32N/A
lift-*.f32N/A
Applied rewrites67.9%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
sqr-neg-revN/A
lift-neg.f32N/A
lift-neg.f32N/A
associate-*l*N/A
lift-neg.f32N/A
distribute-lft-neg-outN/A
*-commutativeN/A
lift-*.f32N/A
rem-exp-logN/A
lift-*.f32N/A
*-commutativeN/A
distribute-lft-neg-outN/A
lift-neg.f32N/A
lift-*.f32N/A
lift-log.f32N/A
exp-fabsN/A
lift-log.f32N/A
lift-*.f32N/A
Applied rewrites67.4%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
*-commutativeN/A
sqr-neg-revN/A
lift-neg.f32N/A
lift-neg.f32N/A
associate-*l*N/A
lift-neg.f32N/A
distribute-lft-neg-outN/A
*-commutativeN/A
lift-*.f32N/A
rem-exp-logN/A
lift-*.f32N/A
*-commutativeN/A
distribute-lft-neg-outN/A
lift-neg.f32N/A
lift-*.f32N/A
lift-log.f32N/A
exp-fabsN/A
lift-log.f32N/A
lift-*.f32N/A
Applied rewrites70.2%
Taylor expanded in dX.u around 0
lower-*.f32N/A
lower-*.f32N/A
lower-*.f32N/A
lower-fabs.f32N/A
lower-*.f32N/A
lower-fabs.f32N/A
lower-floor.f32N/A
lower-floor.f3256.3
Applied rewrites56.3%
Taylor expanded in dX.u around 0
lower-*.f32N/A
lower-*.f32N/A
lower-*.f32N/A
lower-fabs.f32N/A
lower-*.f32N/A
lower-fabs.f32N/A
lower-floor.f32N/A
lower-floor.f3253.7
Applied rewrites53.7%
Taylor expanded in dX.u around 0
lower-*.f32N/A
lower-*.f32N/A
lower-*.f32N/A
lower-fabs.f32N/A
lower-*.f32N/A
lower-fabs.f32N/A
lower-floor.f32N/A
lower-floor.f3253.2
Applied rewrites53.2%
Applied rewrites53.4%
herbie shell --seed 2025150
(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))))