
(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}
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}
Herbie found 8 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}
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}
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dX.v (floor h)) dX.v))
(t_1 (* dY.v (floor h)))
(t_2 (* (* dX.u (floor w)) dX.u))
(t_3 (fma t_0 (floor h) (* t_2 (floor w))))
(t_4 (* dY.u (floor w)))
(t_5 (fma (* t_1 (floor h)) dY.v (* t_4 t_4))))
(if (>= (fma t_2 (floor w) (* t_0 (floor h))) t_5)
(/
(* (- dX.u) (floor w))
(-
(sqrt
(fmax (fma (* t_4 dY.u) (floor w) (* (* t_1 dY.v) (floor h))) t_3))))
(/ (* (- dY.u) (floor w)) (- (sqrt (fmax t_5 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 = (dX_46_v * floorf(h)) * dX_46_v;
float t_1 = dY_46_v * floorf(h);
float t_2 = (dX_46_u * floorf(w)) * dX_46_u;
float t_3 = fmaf(t_0, floorf(h), (t_2 * floorf(w)));
float t_4 = dY_46_u * floorf(w);
float t_5 = fmaf((t_1 * floorf(h)), dY_46_v, (t_4 * t_4));
float tmp;
if (fmaf(t_2, floorf(w), (t_0 * floorf(h))) >= t_5) {
tmp = (-dX_46_u * floorf(w)) / -sqrtf(fmaxf(fmaf((t_4 * dY_46_u), floorf(w), ((t_1 * dY_46_v) * floorf(h))), t_3));
} else {
tmp = (-dY_46_u * floorf(w)) / -sqrtf(fmaxf(t_5, t_3));
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(Float32(dX_46_v * floor(h)) * dX_46_v) t_1 = Float32(dY_46_v * floor(h)) t_2 = Float32(Float32(dX_46_u * floor(w)) * dX_46_u) t_3 = fma(t_0, floor(h), Float32(t_2 * floor(w))) t_4 = Float32(dY_46_u * floor(w)) t_5 = fma(Float32(t_1 * floor(h)), dY_46_v, Float32(t_4 * t_4)) tmp = Float32(0.0) if (fma(t_2, floor(w), Float32(t_0 * floor(h))) >= t_5) tmp = Float32(Float32(Float32(-dX_46_u) * floor(w)) / Float32(-sqrt(fmax(fma(Float32(t_4 * dY_46_u), floor(w), Float32(Float32(t_1 * dY_46_v) * floor(h))), t_3)))); else tmp = Float32(Float32(Float32(-dY_46_u) * floor(w)) / Float32(-sqrt(fmax(t_5, t_3)))); end return tmp end
\begin{array}{l}
t_0 := \left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\\
t_1 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_2 := \left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\\
t_3 := \mathsf{fma}\left(t\_0, \left\lfloor h\right\rfloor , t\_2 \cdot \left\lfloor w\right\rfloor \right)\\
t_4 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_5 := \mathsf{fma}\left(t\_1 \cdot \left\lfloor h\right\rfloor , dY.v, t\_4 \cdot t\_4\right)\\
\mathbf{if}\;\mathsf{fma}\left(t\_2, \left\lfloor w\right\rfloor , t\_0 \cdot \left\lfloor h\right\rfloor \right) \geq t\_5:\\
\;\;\;\;\frac{\left(-dX.u\right) \cdot \left\lfloor w\right\rfloor }{-\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_4 \cdot dY.u, \left\lfloor w\right\rfloor , \left(t\_1 \cdot dY.v\right) \cdot \left\lfloor h\right\rfloor \right), t\_3\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(-dY.u\right) \cdot \left\lfloor w\right\rfloor }{-\sqrt{\mathsf{max}\left(t\_5, t\_3\right)}}\\
\end{array}
Initial program 76.0%
Applied rewrites76.1%
Applied rewrites76.2%
Applied rewrites76.2%
lift-fma.f32N/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
lower-*.f3276.2
lift-*.f32N/A
*-commutativeN/A
lift-*.f3276.2
rem-square-sqrtN/A
sqrt-unprodN/A
sqrt-prodN/A
lower-unsound-*.f32N/A
Applied rewrites76.2%
lift-fma.f32N/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
lower-*.f3276.2
lift-*.f32N/A
*-commutativeN/A
lift-*.f3276.2
rem-square-sqrtN/A
sqrt-unprodN/A
sqrt-prodN/A
lower-unsound-*.f32N/A
Applied rewrites76.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dX.v (floor h)) dX.v))
(t_1 (* (* dY.v (floor h)) dY.v))
(t_2 (* (* dX.u (floor w)) dX.u))
(t_3 (fma t_0 (floor h) (* t_2 (floor w))))
(t_4 (* (* dY.u (floor w)) dY.u))
(t_5 (fma t_1 (floor h) (* t_4 (floor w)))))
(if (>= (fma t_2 (floor w) (* t_0 (floor h))) t_5)
(/
(* (- dX.u) (floor w))
(- (sqrt (fmax (fma t_4 (floor w) (* t_1 (floor h))) t_3))))
(/ (* (- dY.u) (floor w)) (- (sqrt (fmax t_5 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 = (dX_46_v * floorf(h)) * dX_46_v;
float t_1 = (dY_46_v * floorf(h)) * dY_46_v;
float t_2 = (dX_46_u * floorf(w)) * dX_46_u;
float t_3 = fmaf(t_0, floorf(h), (t_2 * floorf(w)));
float t_4 = (dY_46_u * floorf(w)) * dY_46_u;
float t_5 = fmaf(t_1, floorf(h), (t_4 * floorf(w)));
float tmp;
if (fmaf(t_2, floorf(w), (t_0 * floorf(h))) >= t_5) {
tmp = (-dX_46_u * floorf(w)) / -sqrtf(fmaxf(fmaf(t_4, floorf(w), (t_1 * floorf(h))), t_3));
} else {
tmp = (-dY_46_u * floorf(w)) / -sqrtf(fmaxf(t_5, t_3));
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(Float32(dX_46_v * floor(h)) * dX_46_v) t_1 = Float32(Float32(dY_46_v * floor(h)) * dY_46_v) t_2 = Float32(Float32(dX_46_u * floor(w)) * dX_46_u) t_3 = fma(t_0, floor(h), Float32(t_2 * floor(w))) t_4 = Float32(Float32(dY_46_u * floor(w)) * dY_46_u) t_5 = fma(t_1, floor(h), Float32(t_4 * floor(w))) tmp = Float32(0.0) if (fma(t_2, floor(w), Float32(t_0 * floor(h))) >= t_5) tmp = Float32(Float32(Float32(-dX_46_u) * floor(w)) / Float32(-sqrt(fmax(fma(t_4, floor(w), Float32(t_1 * floor(h))), t_3)))); else tmp = Float32(Float32(Float32(-dY_46_u) * floor(w)) / Float32(-sqrt(fmax(t_5, t_3)))); end return tmp end
\begin{array}{l}
t_0 := \left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\\
t_1 := \left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\\
t_2 := \left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\\
t_3 := \mathsf{fma}\left(t\_0, \left\lfloor h\right\rfloor , t\_2 \cdot \left\lfloor w\right\rfloor \right)\\
t_4 := \left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\\
t_5 := \mathsf{fma}\left(t\_1, \left\lfloor h\right\rfloor , t\_4 \cdot \left\lfloor w\right\rfloor \right)\\
\mathbf{if}\;\mathsf{fma}\left(t\_2, \left\lfloor w\right\rfloor , t\_0 \cdot \left\lfloor h\right\rfloor \right) \geq t\_5:\\
\;\;\;\;\frac{\left(-dX.u\right) \cdot \left\lfloor w\right\rfloor }{-\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_4, \left\lfloor w\right\rfloor , t\_1 \cdot \left\lfloor h\right\rfloor \right), t\_3\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(-dY.u\right) \cdot \left\lfloor w\right\rfloor }{-\sqrt{\mathsf{max}\left(t\_5, t\_3\right)}}\\
\end{array}
Initial program 76.0%
Applied rewrites76.1%
Applied rewrites76.2%
Applied rewrites76.2%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dX.v (floor h)) dX.v))
(t_1 (* (* dY.v (floor h)) dY.v))
(t_2 (* dY.u (floor w)))
(t_3 (* (* dX.u (floor w)) dX.u))
(t_4 (fma t_0 (floor h) (* t_3 (floor w))))
(t_5 (* t_2 dY.u))
(t_6 (fma t_1 (floor h) (* t_5 (floor w)))))
(if (>= (fma t_3 (floor w) (* t_0 (floor h))) t_6)
(*
(/ dX.u (sqrt (fmax (fma t_5 (floor w) (* t_1 (floor h))) t_4)))
(floor w))
(/ t_2 (sqrt (fmax 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 = (dX_46_v * floorf(h)) * dX_46_v;
float t_1 = (dY_46_v * floorf(h)) * dY_46_v;
float t_2 = dY_46_u * floorf(w);
float t_3 = (dX_46_u * floorf(w)) * dX_46_u;
float t_4 = fmaf(t_0, floorf(h), (t_3 * floorf(w)));
float t_5 = t_2 * dY_46_u;
float t_6 = fmaf(t_1, floorf(h), (t_5 * floorf(w)));
float tmp;
if (fmaf(t_3, floorf(w), (t_0 * floorf(h))) >= t_6) {
tmp = (dX_46_u / sqrtf(fmaxf(fmaf(t_5, floorf(w), (t_1 * floorf(h))), t_4))) * floorf(w);
} else {
tmp = t_2 / sqrtf(fmaxf(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(Float32(dX_46_v * floor(h)) * dX_46_v) t_1 = Float32(Float32(dY_46_v * floor(h)) * dY_46_v) t_2 = Float32(dY_46_u * floor(w)) t_3 = Float32(Float32(dX_46_u * floor(w)) * dX_46_u) t_4 = fma(t_0, floor(h), Float32(t_3 * floor(w))) t_5 = Float32(t_2 * dY_46_u) t_6 = fma(t_1, floor(h), Float32(t_5 * floor(w))) tmp = Float32(0.0) if (fma(t_3, floor(w), Float32(t_0 * floor(h))) >= t_6) tmp = Float32(Float32(dX_46_u / sqrt(fmax(fma(t_5, floor(w), Float32(t_1 * floor(h))), t_4))) * floor(w)); else tmp = Float32(t_2 / sqrt(fmax(t_6, t_4))); end return tmp end
\begin{array}{l}
t_0 := \left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\\
t_1 := \left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\\
t_2 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_3 := \left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\\
t_4 := \mathsf{fma}\left(t\_0, \left\lfloor h\right\rfloor , t\_3 \cdot \left\lfloor w\right\rfloor \right)\\
t_5 := t\_2 \cdot dY.u\\
t_6 := \mathsf{fma}\left(t\_1, \left\lfloor h\right\rfloor , t\_5 \cdot \left\lfloor w\right\rfloor \right)\\
\mathbf{if}\;\mathsf{fma}\left(t\_3, \left\lfloor w\right\rfloor , t\_0 \cdot \left\lfloor h\right\rfloor \right) \geq t\_6:\\
\;\;\;\;\frac{dX.u}{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_5, \left\lfloor w\right\rfloor , t\_1 \cdot \left\lfloor h\right\rfloor \right), t\_4\right)}} \cdot \left\lfloor w\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{t\_2}{\sqrt{\mathsf{max}\left(t\_6, t\_4\right)}}\\
\end{array}
Initial program 76.0%
Applied rewrites76.0%
Applied rewrites76.1%
Applied rewrites76.1%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dX.u (floor w)) dX.u))
(t_1 (* dY.u (floor w)))
(t_2 (* dY.v (floor h)))
(t_3
(/
(floor w)
(sqrt
(fmax
(fma (* t_2 (floor h)) dY.v (* t_1 t_1))
(fma t_0 (floor w) (* (* (* dX.v (floor h)) dX.v) (floor h))))))))
(if (>=
(fma (* (* dX.v dX.v) (floor h)) (floor h) (* t_0 (floor w)))
(fma (* t_1 dY.u) (floor w) (* (* t_2 dY.v) (floor h))))
(* t_3 dX.u)
(* t_3 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 = (dX_46_u * floorf(w)) * dX_46_u;
float t_1 = dY_46_u * floorf(w);
float t_2 = dY_46_v * floorf(h);
float t_3 = floorf(w) / sqrtf(fmaxf(fmaf((t_2 * floorf(h)), dY_46_v, (t_1 * t_1)), fmaf(t_0, floorf(w), (((dX_46_v * floorf(h)) * dX_46_v) * floorf(h)))));
float tmp;
if (fmaf(((dX_46_v * dX_46_v) * floorf(h)), floorf(h), (t_0 * floorf(w))) >= fmaf((t_1 * dY_46_u), floorf(w), ((t_2 * dY_46_v) * floorf(h)))) {
tmp = t_3 * dX_46_u;
} else {
tmp = t_3 * 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(Float32(dX_46_u * floor(w)) * dX_46_u) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32(dY_46_v * floor(h)) t_3 = Float32(floor(w) / sqrt(fmax(fma(Float32(t_2 * floor(h)), dY_46_v, Float32(t_1 * t_1)), fma(t_0, floor(w), Float32(Float32(Float32(dX_46_v * floor(h)) * dX_46_v) * floor(h)))))) tmp = Float32(0.0) if (fma(Float32(Float32(dX_46_v * dX_46_v) * floor(h)), floor(h), Float32(t_0 * floor(w))) >= fma(Float32(t_1 * dY_46_u), floor(w), Float32(Float32(t_2 * dY_46_v) * floor(h)))) tmp = Float32(t_3 * dX_46_u); else tmp = Float32(t_3 * dY_46_u); end return tmp end
\begin{array}{l}
t_0 := \left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := dY.v \cdot \left\lfloor h\right\rfloor \\
t_3 := \frac{\left\lfloor w\right\rfloor }{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_2 \cdot \left\lfloor h\right\rfloor , dY.v, t\_1 \cdot t\_1\right), \mathsf{fma}\left(t\_0, \left\lfloor w\right\rfloor , \left(\left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor \right)\right)}}\\
\mathbf{if}\;\mathsf{fma}\left(\left(dX.v \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor , \left\lfloor h\right\rfloor , t\_0 \cdot \left\lfloor w\right\rfloor \right) \geq \mathsf{fma}\left(t\_1 \cdot dY.u, \left\lfloor w\right\rfloor , \left(t\_2 \cdot dY.v\right) \cdot \left\lfloor h\right\rfloor \right):\\
\;\;\;\;t\_3 \cdot dX.u\\
\mathbf{else}:\\
\;\;\;\;t\_3 \cdot dY.u\\
\end{array}
Initial program 76.0%
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
Applied rewrites75.9%
Applied rewrites75.9%
lift-fma.f32N/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
lower-*.f3275.9
lift-*.f32N/A
*-commutativeN/A
lift-*.f3275.9
rem-square-sqrtN/A
sqrt-unprodN/A
sqrt-prodN/A
lower-unsound-*.f32N/A
Applied rewrites75.9%
lift-fma.f32N/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
lower-*.f3275.9
lift-*.f32N/A
*-commutativeN/A
lift-*.f3275.9
rem-square-sqrtN/A
sqrt-unprodN/A
sqrt-prodN/A
lower-unsound-*.f32N/A
Applied rewrites75.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dY.u (floor w)) dY.u))
(t_1 (* (floor h) dX.v))
(t_2 (* (* dY.v (floor h)) dY.v))
(t_3
(/
(floor w)
(sqrt
(fmax
(fma t_2 (floor h) (* t_0 (floor w)))
(fma (* (* (floor w) (floor w)) dX.u) dX.u (* t_1 t_1)))))))
(if (>=
(fma
(* (* dX.v dX.v) (floor h))
(floor h)
(* (* (* dX.u (floor w)) dX.u) (floor w)))
(fma t_0 (floor w) (* t_2 (floor h))))
(* t_3 dX.u)
(* t_3 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 = (dY_46_u * floorf(w)) * dY_46_u;
float t_1 = floorf(h) * dX_46_v;
float t_2 = (dY_46_v * floorf(h)) * dY_46_v;
float t_3 = floorf(w) / sqrtf(fmaxf(fmaf(t_2, floorf(h), (t_0 * floorf(w))), fmaf(((floorf(w) * floorf(w)) * dX_46_u), dX_46_u, (t_1 * t_1))));
float tmp;
if (fmaf(((dX_46_v * dX_46_v) * floorf(h)), floorf(h), (((dX_46_u * floorf(w)) * dX_46_u) * floorf(w))) >= fmaf(t_0, floorf(w), (t_2 * floorf(h)))) {
tmp = t_3 * dX_46_u;
} else {
tmp = t_3 * 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(Float32(dY_46_u * floor(w)) * dY_46_u) t_1 = Float32(floor(h) * dX_46_v) t_2 = Float32(Float32(dY_46_v * floor(h)) * dY_46_v) t_3 = Float32(floor(w) / sqrt(fmax(fma(t_2, floor(h), Float32(t_0 * floor(w))), fma(Float32(Float32(floor(w) * floor(w)) * dX_46_u), dX_46_u, Float32(t_1 * t_1))))) tmp = Float32(0.0) if (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))) >= fma(t_0, floor(w), Float32(t_2 * floor(h)))) tmp = Float32(t_3 * dX_46_u); else tmp = Float32(t_3 * dY_46_u); end return tmp end
\begin{array}{l}
t_0 := \left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\\
t_1 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_2 := \left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\\
t_3 := \frac{\left\lfloor w\right\rfloor }{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_2, \left\lfloor h\right\rfloor , t\_0 \cdot \left\lfloor w\right\rfloor \right), \mathsf{fma}\left(\left(\left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u, dX.u, t\_1 \cdot t\_1\right)\right)}}\\
\mathbf{if}\;\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) \geq \mathsf{fma}\left(t\_0, \left\lfloor w\right\rfloor , t\_2 \cdot \left\lfloor h\right\rfloor \right):\\
\;\;\;\;t\_3 \cdot dX.u\\
\mathbf{else}:\\
\;\;\;\;t\_3 \cdot dY.u\\
\end{array}
Initial program 76.0%
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
Applied rewrites75.9%
Applied rewrites75.9%
lift-fma.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
associate-*r*N/A
lower-fma.f32N/A
Applied rewrites75.9%
lift-fma.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
lift-*.f32N/A
lift-*.f32N/A
swap-sqrN/A
associate-*r*N/A
lower-fma.f32N/A
Applied rewrites75.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dY.v (floor h)) dY.v))
(t_1 (* (* dY.u (floor w)) dY.u))
(t_2 (* (floor w) dX.u))
(t_3
(/
(floor w)
(sqrt
(fmax
(fma t_0 (floor h) (* t_1 (floor w)))
(fma (* (floor h) (floor h)) (* dX.v dX.v) (* t_2 t_2)))))))
(if (>=
(fma
(* (* dX.v dX.v) (floor h))
(floor h)
(* (* (* dX.u (floor w)) dX.u) (floor w)))
(fma t_1 (floor w) (* t_0 (floor h))))
(* t_3 dX.u)
(* t_3 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 = (dY_46_v * floorf(h)) * dY_46_v;
float t_1 = (dY_46_u * floorf(w)) * dY_46_u;
float t_2 = floorf(w) * dX_46_u;
float t_3 = floorf(w) / sqrtf(fmaxf(fmaf(t_0, floorf(h), (t_1 * floorf(w))), fmaf((floorf(h) * floorf(h)), (dX_46_v * dX_46_v), (t_2 * t_2))));
float tmp;
if (fmaf(((dX_46_v * dX_46_v) * floorf(h)), floorf(h), (((dX_46_u * floorf(w)) * dX_46_u) * floorf(w))) >= fmaf(t_1, floorf(w), (t_0 * floorf(h)))) {
tmp = t_3 * dX_46_u;
} else {
tmp = t_3 * 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(Float32(dY_46_v * floor(h)) * dY_46_v) t_1 = Float32(Float32(dY_46_u * floor(w)) * dY_46_u) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(floor(w) / sqrt(fmax(fma(t_0, floor(h), Float32(t_1 * floor(w))), fma(Float32(floor(h) * floor(h)), Float32(dX_46_v * dX_46_v), Float32(t_2 * t_2))))) tmp = Float32(0.0) if (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))) >= fma(t_1, floor(w), Float32(t_0 * floor(h)))) tmp = Float32(t_3 * dX_46_u); else tmp = Float32(t_3 * dY_46_u); end return tmp end
\begin{array}{l}
t_0 := \left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\\
t_1 := \left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := \frac{\left\lfloor w\right\rfloor }{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_0, \left\lfloor h\right\rfloor , t\_1 \cdot \left\lfloor w\right\rfloor \right), \mathsf{fma}\left(\left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor , dX.v \cdot dX.v, t\_2 \cdot t\_2\right)\right)}}\\
\mathbf{if}\;\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) \geq \mathsf{fma}\left(t\_1, \left\lfloor w\right\rfloor , t\_0 \cdot \left\lfloor h\right\rfloor \right):\\
\;\;\;\;t\_3 \cdot dX.u\\
\mathbf{else}:\\
\;\;\;\;t\_3 \cdot dY.u\\
\end{array}
Initial program 76.0%
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
Applied rewrites75.9%
Applied rewrites75.9%
lift-fma.f32N/A
lift-*.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
unswap-sqrN/A
lift-*.f32N/A
*-commutativeN/A
lower-fma.f32N/A
lower-*.f3275.9
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
Applied rewrites75.9%
lift-fma.f32N/A
lift-*.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
unswap-sqrN/A
lift-*.f32N/A
*-commutativeN/A
lower-fma.f32N/A
lower-*.f3275.9
lift-*.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
Applied rewrites75.9%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (* dX.u (floor w)) dX.u))
(t_1 (* dY.u (floor w)))
(t_2
(/
(floor w)
(sqrt
(fmax
(fma (* (* dY.v dY.v) (floor h)) (floor h) (* t_1 t_1))
(fma t_0 (floor w) (* (* (* dX.v (floor h)) dX.v) (floor h))))))))
(if (>=
(fma (* (* dX.v dX.v) (floor h)) (floor h) (* t_0 (floor w)))
(fma (* t_1 dY.u) (floor w) (* (* (* dY.v (floor h)) dY.v) (floor h))))
(* t_2 dX.u)
(* t_2 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 = (dX_46_u * floorf(w)) * dX_46_u;
float t_1 = dY_46_u * floorf(w);
float t_2 = floorf(w) / sqrtf(fmaxf(fmaf(((dY_46_v * dY_46_v) * floorf(h)), floorf(h), (t_1 * t_1)), fmaf(t_0, floorf(w), (((dX_46_v * floorf(h)) * dX_46_v) * floorf(h)))));
float tmp;
if (fmaf(((dX_46_v * dX_46_v) * floorf(h)), floorf(h), (t_0 * floorf(w))) >= fmaf((t_1 * dY_46_u), floorf(w), (((dY_46_v * floorf(h)) * dY_46_v) * floorf(h)))) {
tmp = t_2 * dX_46_u;
} else {
tmp = t_2 * 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(Float32(dX_46_u * floor(w)) * dX_46_u) t_1 = Float32(dY_46_u * floor(w)) t_2 = Float32(floor(w) / sqrt(fmax(fma(Float32(Float32(dY_46_v * dY_46_v) * floor(h)), floor(h), Float32(t_1 * t_1)), fma(t_0, floor(w), Float32(Float32(Float32(dX_46_v * floor(h)) * dX_46_v) * floor(h)))))) tmp = Float32(0.0) if (fma(Float32(Float32(dX_46_v * dX_46_v) * floor(h)), floor(h), Float32(t_0 * floor(w))) >= fma(Float32(t_1 * dY_46_u), floor(w), Float32(Float32(Float32(dY_46_v * floor(h)) * dY_46_v) * floor(h)))) tmp = Float32(t_2 * dX_46_u); else tmp = Float32(t_2 * dY_46_u); end return tmp end
\begin{array}{l}
t_0 := \left(dX.u \cdot \left\lfloor w\right\rfloor \right) \cdot dX.u\\
t_1 := dY.u \cdot \left\lfloor w\right\rfloor \\
t_2 := \frac{\left\lfloor w\right\rfloor }{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(\left(dY.v \cdot dY.v\right) \cdot \left\lfloor h\right\rfloor , \left\lfloor h\right\rfloor , t\_1 \cdot t\_1\right), \mathsf{fma}\left(t\_0, \left\lfloor w\right\rfloor , \left(\left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor \right)\right)}}\\
\mathbf{if}\;\mathsf{fma}\left(\left(dX.v \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor , \left\lfloor h\right\rfloor , t\_0 \cdot \left\lfloor w\right\rfloor \right) \geq \mathsf{fma}\left(t\_1 \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 \cdot dX.u\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot dY.u\\
\end{array}
Initial program 76.0%
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
Applied rewrites75.9%
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
rem-square-sqrtN/A
sqrt-unprodN/A
sqrt-prodN/A
lower-unsound-*.f32N/A
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
rem-square-sqrtN/A
sqrt-unprodN/A
sqrt-prodN/A
lower-unsound-*.f32N/A
Applied rewrites75.9%
(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 w) (sqrt (fmax t_0 t_1)))))
(if (>= t_1 t_0) (* t_2 dX.u) (* t_2 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 = 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(w) / sqrtf(fmaxf(t_0, t_1));
float tmp;
if (t_1 >= t_0) {
tmp = t_2 * dX_46_u;
} else {
tmp = t_2 * dY_46_u;
}
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(w) / sqrt(fmax(t_0, t_1))) tmp = Float32(0.0) if (t_1 >= t_0) tmp = Float32(t_2 * dX_46_u); else tmp = Float32(t_2 * dY_46_u); end return tmp end
\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 w\right\rfloor }{\sqrt{\mathsf{max}\left(t\_0, t\_1\right)}}\\
\mathbf{if}\;t\_1 \geq t\_0:\\
\;\;\;\;t\_2 \cdot dX.u\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot dY.u\\
\end{array}
Initial program 76.0%
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f3275.9
Applied rewrites75.9%
herbie shell --seed 2025170
(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))))