
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor h) dX.v))
(t_3 (* (floor d) dY.w))
(t_4 (* (floor d) dX.w))
(t_5 (* (floor w) dX.u)))
(log2
(sqrt
(fmax
(+ (+ (* t_5 t_5) (* t_2 t_2)) (* t_4 t_4))
(+ (+ (* t_0 t_0) (* t_1 t_1)) (* t_3 t_3)))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(h) * dX_46_v;
float t_3 = floorf(d) * dY_46_w;
float t_4 = floorf(d) * dX_46_w;
float t_5 = floorf(w) * dX_46_u;
return log2f(sqrtf(fmaxf((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3)))));
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(h) * dX_46_v) t_3 = Float32(floor(d) * dY_46_w) t_4 = Float32(floor(d) * dX_46_w) t_5 = Float32(floor(w) * dX_46_u) return log2(sqrt(((Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) != Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) : ((Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))) ? Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) : max(Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)), Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))))))) end
function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = floor(h) * dX_46_v; t_3 = floor(d) * dY_46_w; t_4 = floor(d) * dX_46_w; t_5 = floor(w) * dX_46_u; tmp = log2(sqrt(max((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3))))); 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 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_3 := \left\lfloor d\right\rfloor \cdot dY.w\\
t_4 := \left\lfloor d\right\rfloor \cdot dX.w\\
t_5 := \left\lfloor w\right\rfloor \cdot dX.u\\
\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_5 \cdot t\_5 + t\_2 \cdot t\_2\right) + t\_4 \cdot t\_4, \left(t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right) + t\_3 \cdot t\_3\right)}\right)
\end{array}
\end{array}
Sampling outcomes in binary32 precision:
Herbie found 9 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor h) dX.v))
(t_3 (* (floor d) dY.w))
(t_4 (* (floor d) dX.w))
(t_5 (* (floor w) dX.u)))
(log2
(sqrt
(fmax
(+ (+ (* t_5 t_5) (* t_2 t_2)) (* t_4 t_4))
(+ (+ (* t_0 t_0) (* t_1 t_1)) (* t_3 t_3)))))))
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dY_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(h) * dX_46_v;
float t_3 = floorf(d) * dY_46_w;
float t_4 = floorf(d) * dX_46_w;
float t_5 = floorf(w) * dX_46_u;
return log2f(sqrtf(fmaxf((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3)))));
}
function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(h) * dX_46_v) t_3 = Float32(floor(d) * dY_46_w) t_4 = Float32(floor(d) * dX_46_w) t_5 = Float32(floor(w) * dX_46_u) return log2(sqrt(((Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) != Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) : ((Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))) ? Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)) : max(Float32(Float32(Float32(t_5 * t_5) + Float32(t_2 * t_2)) + Float32(t_4 * t_4)), Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_3 * t_3))))))) end
function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u, dY_46_v, dY_46_w) t_0 = floor(w) * dY_46_u; t_1 = floor(h) * dY_46_v; t_2 = floor(h) * dX_46_v; t_3 = floor(d) * dY_46_w; t_4 = floor(d) * dX_46_w; t_5 = floor(w) * dX_46_u; tmp = log2(sqrt(max((((t_5 * t_5) + (t_2 * t_2)) + (t_4 * t_4)), (((t_0 * t_0) + (t_1 * t_1)) + (t_3 * t_3))))); 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 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_3 := \left\lfloor d\right\rfloor \cdot dY.w\\
t_4 := \left\lfloor d\right\rfloor \cdot dX.w\\
t_5 := \left\lfloor w\right\rfloor \cdot dX.u\\
\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_5 \cdot t\_5 + t\_2 \cdot t\_2\right) + t\_4 \cdot t\_4, \left(t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right) + t\_3 \cdot t\_3\right)}\right)
\end{array}
\end{array}
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (pow (floor w) 2.0))
(t_1 (* (floor w) dX.u))
(t_2 (* (floor w) dY.u_m))
(t_3 (pow (floor h) 2.0))
(t_4 (* (floor h) dY.v))
(t_5 (* (floor h) dX.v))
(t_6 (pow (floor d) 2.0))
(t_7 (* (floor d) dY.w))
(t_8 (* (floor d) dX.w))
(t_9
(log2
(sqrt
(fmax
(+ (+ (* t_1 t_1) (* t_5 t_5)) (* t_8 t_8))
(+ (+ (* t_2 t_2) (* t_4 t_4)) (* t_7 t_7)))))))
(if (<= t_9 100.0)
t_9
(log2
(sqrt
(fmax
(fma (* t_0 dX.u) dX.u (fma (* t_3 dX.v) dX.v (* (* t_6 dX.w) dX.w)))
(fma
(* t_0 dY.u_m)
dY.u_m
(fma (* t_6 dY.w) dY.w (* (* t_3 dY.v) dY.v)))))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = powf(floorf(w), 2.0f);
float t_1 = floorf(w) * dX_46_u;
float t_2 = floorf(w) * dY_46_u_m;
float t_3 = powf(floorf(h), 2.0f);
float t_4 = floorf(h) * dY_46_v;
float t_5 = floorf(h) * dX_46_v;
float t_6 = powf(floorf(d), 2.0f);
float t_7 = floorf(d) * dY_46_w;
float t_8 = floorf(d) * dX_46_w;
float t_9 = log2f(sqrtf(fmaxf((((t_1 * t_1) + (t_5 * t_5)) + (t_8 * t_8)), (((t_2 * t_2) + (t_4 * t_4)) + (t_7 * t_7)))));
float tmp;
if (t_9 <= 100.0f) {
tmp = t_9;
} else {
tmp = log2f(sqrtf(fmaxf(fmaf((t_0 * dX_46_u), dX_46_u, fmaf((t_3 * dX_46_v), dX_46_v, ((t_6 * dX_46_w) * dX_46_w))), fmaf((t_0 * dY_46_u_m), dY_46_u_m, fmaf((t_6 * dY_46_w), dY_46_w, ((t_3 * dY_46_v) * dY_46_v))))));
}
return tmp;
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = floor(w) ^ Float32(2.0) t_1 = Float32(floor(w) * dX_46_u) t_2 = Float32(floor(w) * dY_46_u_m) t_3 = floor(h) ^ Float32(2.0) t_4 = Float32(floor(h) * dY_46_v) t_5 = Float32(floor(h) * dX_46_v) t_6 = floor(d) ^ Float32(2.0) t_7 = Float32(floor(d) * dY_46_w) t_8 = Float32(floor(d) * dX_46_w) t_9 = log2(sqrt(((Float32(Float32(Float32(t_1 * t_1) + Float32(t_5 * t_5)) + Float32(t_8 * t_8)) != Float32(Float32(Float32(t_1 * t_1) + Float32(t_5 * t_5)) + Float32(t_8 * t_8))) ? Float32(Float32(Float32(t_2 * t_2) + Float32(t_4 * t_4)) + Float32(t_7 * t_7)) : ((Float32(Float32(Float32(t_2 * t_2) + Float32(t_4 * t_4)) + Float32(t_7 * t_7)) != Float32(Float32(Float32(t_2 * t_2) + Float32(t_4 * t_4)) + Float32(t_7 * t_7))) ? Float32(Float32(Float32(t_1 * t_1) + Float32(t_5 * t_5)) + Float32(t_8 * t_8)) : max(Float32(Float32(Float32(t_1 * t_1) + Float32(t_5 * t_5)) + Float32(t_8 * t_8)), Float32(Float32(Float32(t_2 * t_2) + Float32(t_4 * t_4)) + Float32(t_7 * t_7))))))) tmp = Float32(0.0) if (t_9 <= Float32(100.0)) tmp = t_9; else tmp = log2(sqrt(((fma(Float32(t_0 * dX_46_u), dX_46_u, fma(Float32(t_3 * dX_46_v), dX_46_v, Float32(Float32(t_6 * dX_46_w) * dX_46_w))) != fma(Float32(t_0 * dX_46_u), dX_46_u, fma(Float32(t_3 * dX_46_v), dX_46_v, Float32(Float32(t_6 * dX_46_w) * dX_46_w)))) ? fma(Float32(t_0 * dY_46_u_m), dY_46_u_m, fma(Float32(t_6 * dY_46_w), dY_46_w, Float32(Float32(t_3 * dY_46_v) * dY_46_v))) : ((fma(Float32(t_0 * dY_46_u_m), dY_46_u_m, fma(Float32(t_6 * dY_46_w), dY_46_w, Float32(Float32(t_3 * dY_46_v) * dY_46_v))) != fma(Float32(t_0 * dY_46_u_m), dY_46_u_m, fma(Float32(t_6 * dY_46_w), dY_46_w, Float32(Float32(t_3 * dY_46_v) * dY_46_v)))) ? fma(Float32(t_0 * dX_46_u), dX_46_u, fma(Float32(t_3 * dX_46_v), dX_46_v, Float32(Float32(t_6 * dX_46_w) * dX_46_w))) : max(fma(Float32(t_0 * dX_46_u), dX_46_u, fma(Float32(t_3 * dX_46_v), dX_46_v, Float32(Float32(t_6 * dX_46_w) * dX_46_w))), fma(Float32(t_0 * dY_46_u_m), dY_46_u_m, fma(Float32(t_6 * dY_46_w), dY_46_w, Float32(Float32(t_3 * dY_46_v) * dY_46_v)))))))); end return tmp end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_1 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_2 := \left\lfloor w\right\rfloor \cdot dY.u\_m\\
t_3 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_4 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_5 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_6 := {\left(\left\lfloor d\right\rfloor \right)}^{2}\\
t_7 := \left\lfloor d\right\rfloor \cdot dY.w\\
t_8 := \left\lfloor d\right\rfloor \cdot dX.w\\
t_9 := \log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_1 \cdot t\_1 + t\_5 \cdot t\_5\right) + t\_8 \cdot t\_8, \left(t\_2 \cdot t\_2 + t\_4 \cdot t\_4\right) + t\_7 \cdot t\_7\right)}\right)\\
\mathbf{if}\;t\_9 \leq 100:\\
\;\;\;\;t\_9\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_0 \cdot dX.u, dX.u, \mathsf{fma}\left(t\_3 \cdot dX.v, dX.v, \left(t\_6 \cdot dX.w\right) \cdot dX.w\right)\right), \mathsf{fma}\left(t\_0 \cdot dY.u\_m, dY.u\_m, \mathsf{fma}\left(t\_6 \cdot dY.w, dY.w, \left(t\_3 \cdot dY.v\right) \cdot dY.v\right)\right)\right)}\right)\\
\end{array}
\end{array}
if (log2.f32 (sqrt.f32 (fmax.f32 (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (*.f32 (*.f32 (floor.f32 d) dX.w) (*.f32 (floor.f32 d) dX.w))) (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v))) (*.f32 (*.f32 (floor.f32 d) dY.w) (*.f32 (floor.f32 d) dY.w)))))) < 100Initial program 100.0%
if 100 < (log2.f32 (sqrt.f32 (fmax.f32 (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (*.f32 (*.f32 (floor.f32 d) dX.w) (*.f32 (floor.f32 d) dX.w))) (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v))) (*.f32 (*.f32 (floor.f32 d) dY.w) (*.f32 (floor.f32 d) dY.w)))))) Initial program 6.5%
Applied rewrites6.5%
Taylor expanded in w around 0
Applied rewrites11.4%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dX.u))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor d) dY.w))
(t_3 (pow (floor d) 2.0))
(t_4 (* (floor w) dY.u_m))
(t_5 (pow (floor w) 2.0))
(t_6 (* (floor h) dX.v))
(t_7 (pow (floor h) 2.0))
(t_8 (* (floor d) dX.w))
(t_9
(log2
(sqrt
(fmax
(+ (+ (* t_0 t_0) (* t_6 t_6)) (* t_8 t_8))
(+ (+ (* t_4 t_4) (* t_1 t_1)) (* t_2 t_2)))))))
(if (<= t_9 100.0)
t_9
(log2
(exp
(*
(log
(fmax
(fma (* t_5 dX.u) dX.u (fma (* t_7 dX.v) dX.v (* (* t_3 dX.w) dX.w)))
(fma
(* t_5 dY.u_m)
dY.u_m
(fma (* t_3 dY.w) dY.w (* (* t_7 dY.v) dY.v)))))
0.5))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dX_46_u;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(d) * dY_46_w;
float t_3 = powf(floorf(d), 2.0f);
float t_4 = floorf(w) * dY_46_u_m;
float t_5 = powf(floorf(w), 2.0f);
float t_6 = floorf(h) * dX_46_v;
float t_7 = powf(floorf(h), 2.0f);
float t_8 = floorf(d) * dX_46_w;
float t_9 = log2f(sqrtf(fmaxf((((t_0 * t_0) + (t_6 * t_6)) + (t_8 * t_8)), (((t_4 * t_4) + (t_1 * t_1)) + (t_2 * t_2)))));
float tmp;
if (t_9 <= 100.0f) {
tmp = t_9;
} else {
tmp = log2f(expf((logf(fmaxf(fmaf((t_5 * dX_46_u), dX_46_u, fmaf((t_7 * dX_46_v), dX_46_v, ((t_3 * dX_46_w) * dX_46_w))), fmaf((t_5 * dY_46_u_m), dY_46_u_m, fmaf((t_3 * dY_46_w), dY_46_w, ((t_7 * dY_46_v) * dY_46_v))))) * 0.5f)));
}
return tmp;
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dX_46_u) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(d) * dY_46_w) t_3 = floor(d) ^ Float32(2.0) t_4 = Float32(floor(w) * dY_46_u_m) t_5 = floor(w) ^ Float32(2.0) t_6 = Float32(floor(h) * dX_46_v) t_7 = floor(h) ^ Float32(2.0) t_8 = Float32(floor(d) * dX_46_w) t_9 = log2(sqrt(((Float32(Float32(Float32(t_0 * t_0) + Float32(t_6 * t_6)) + Float32(t_8 * t_8)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_6 * t_6)) + Float32(t_8 * t_8))) ? Float32(Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)) + Float32(t_2 * t_2)) : ((Float32(Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)) + Float32(t_2 * t_2)) != Float32(Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)) + Float32(t_2 * t_2))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_6 * t_6)) + Float32(t_8 * t_8)) : max(Float32(Float32(Float32(t_0 * t_0) + Float32(t_6 * t_6)) + Float32(t_8 * t_8)), Float32(Float32(Float32(t_4 * t_4) + Float32(t_1 * t_1)) + Float32(t_2 * t_2))))))) tmp = Float32(0.0) if (t_9 <= Float32(100.0)) tmp = t_9; else tmp = log2(exp(Float32(log(((fma(Float32(t_5 * dX_46_u), dX_46_u, fma(Float32(t_7 * dX_46_v), dX_46_v, Float32(Float32(t_3 * dX_46_w) * dX_46_w))) != fma(Float32(t_5 * dX_46_u), dX_46_u, fma(Float32(t_7 * dX_46_v), dX_46_v, Float32(Float32(t_3 * dX_46_w) * dX_46_w)))) ? fma(Float32(t_5 * dY_46_u_m), dY_46_u_m, fma(Float32(t_3 * dY_46_w), dY_46_w, Float32(Float32(t_7 * dY_46_v) * dY_46_v))) : ((fma(Float32(t_5 * dY_46_u_m), dY_46_u_m, fma(Float32(t_3 * dY_46_w), dY_46_w, Float32(Float32(t_7 * dY_46_v) * dY_46_v))) != fma(Float32(t_5 * dY_46_u_m), dY_46_u_m, fma(Float32(t_3 * dY_46_w), dY_46_w, Float32(Float32(t_7 * dY_46_v) * dY_46_v)))) ? fma(Float32(t_5 * dX_46_u), dX_46_u, fma(Float32(t_7 * dX_46_v), dX_46_v, Float32(Float32(t_3 * dX_46_w) * dX_46_w))) : max(fma(Float32(t_5 * dX_46_u), dX_46_u, fma(Float32(t_7 * dX_46_v), dX_46_v, Float32(Float32(t_3 * dX_46_w) * dX_46_w))), fma(Float32(t_5 * dY_46_u_m), dY_46_u_m, fma(Float32(t_3 * dY_46_w), dY_46_w, Float32(Float32(t_7 * dY_46_v) * dY_46_v))))))) * Float32(0.5)))); end return tmp end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_1 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_2 := \left\lfloor d\right\rfloor \cdot dY.w\\
t_3 := {\left(\left\lfloor d\right\rfloor \right)}^{2}\\
t_4 := \left\lfloor w\right\rfloor \cdot dY.u\_m\\
t_5 := {\left(\left\lfloor w\right\rfloor \right)}^{2}\\
t_6 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_7 := {\left(\left\lfloor h\right\rfloor \right)}^{2}\\
t_8 := \left\lfloor d\right\rfloor \cdot dX.w\\
t_9 := \log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_0 \cdot t\_0 + t\_6 \cdot t\_6\right) + t\_8 \cdot t\_8, \left(t\_4 \cdot t\_4 + t\_1 \cdot t\_1\right) + t\_2 \cdot t\_2\right)}\right)\\
\mathbf{if}\;t\_9 \leq 100:\\
\;\;\;\;t\_9\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(e^{\log \left(\mathsf{max}\left(\mathsf{fma}\left(t\_5 \cdot dX.u, dX.u, \mathsf{fma}\left(t\_7 \cdot dX.v, dX.v, \left(t\_3 \cdot dX.w\right) \cdot dX.w\right)\right), \mathsf{fma}\left(t\_5 \cdot dY.u\_m, dY.u\_m, \mathsf{fma}\left(t\_3 \cdot dY.w, dY.w, \left(t\_7 \cdot dY.v\right) \cdot dY.v\right)\right)\right)\right) \cdot 0.5}\right)\\
\end{array}
\end{array}
if (log2.f32 (sqrt.f32 (fmax.f32 (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (*.f32 (*.f32 (floor.f32 d) dX.w) (*.f32 (floor.f32 d) dX.w))) (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v))) (*.f32 (*.f32 (floor.f32 d) dY.w) (*.f32 (floor.f32 d) dY.w)))))) < 100Initial program 100.0%
if 100 < (log2.f32 (sqrt.f32 (fmax.f32 (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dX.u) (*.f32 (floor.f32 w) dX.u)) (*.f32 (*.f32 (floor.f32 h) dX.v) (*.f32 (floor.f32 h) dX.v))) (*.f32 (*.f32 (floor.f32 d) dX.w) (*.f32 (floor.f32 d) dX.w))) (+.f32 (+.f32 (*.f32 (*.f32 (floor.f32 w) dY.u) (*.f32 (floor.f32 w) dY.u)) (*.f32 (*.f32 (floor.f32 h) dY.v) (*.f32 (floor.f32 h) dY.v))) (*.f32 (*.f32 (floor.f32 d) dY.w) (*.f32 (floor.f32 d) dY.w)))))) Initial program 6.5%
Applied rewrites6.5%
Taylor expanded in w around 0
Applied rewrites11.5%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dX.u))
(t_1 (* (floor d) dX.w))
(t_2 (* (floor h) dX.v))
(t_3 (pow (* dY.v (floor h)) 2.0)))
(if (<= dY.w 5000.0)
(log2
(sqrt
(fmax
(+ (+ (pow t_2 2.0) (pow t_0 2.0)) (pow t_1 2.0))
(+ t_3 (pow (* (floor w) dY.u_m) 2.0)))))
(log2
(sqrt
(fmax
(+ (+ (* t_0 t_0) (* t_2 t_2)) (* t_1 t_1))
(fma
(fabs (floor w))
(fabs (* (* dY.u_m (floor w)) dY.u_m))
(+ (pow (* dY.w (floor d)) 2.0) t_3))))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dX_46_u;
float t_1 = floorf(d) * dX_46_w;
float t_2 = floorf(h) * dX_46_v;
float t_3 = powf((dY_46_v * floorf(h)), 2.0f);
float tmp;
if (dY_46_w <= 5000.0f) {
tmp = log2f(sqrtf(fmaxf(((powf(t_2, 2.0f) + powf(t_0, 2.0f)) + powf(t_1, 2.0f)), (t_3 + powf((floorf(w) * dY_46_u_m), 2.0f)))));
} else {
tmp = log2f(sqrtf(fmaxf((((t_0 * t_0) + (t_2 * t_2)) + (t_1 * t_1)), fmaf(fabsf(floorf(w)), fabsf(((dY_46_u_m * floorf(w)) * dY_46_u_m)), (powf((dY_46_w * floorf(d)), 2.0f) + t_3)))));
}
return tmp;
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dX_46_u) t_1 = Float32(floor(d) * dX_46_w) t_2 = Float32(floor(h) * dX_46_v) t_3 = Float32(dY_46_v * floor(h)) ^ Float32(2.0) tmp = Float32(0.0) if (dY_46_w <= Float32(5000.0)) tmp = log2(sqrt(((Float32(Float32((t_2 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) + (t_1 ^ Float32(2.0))) != Float32(Float32((t_2 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) + (t_1 ^ Float32(2.0)))) ? Float32(t_3 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0))) : ((Float32(t_3 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0))) != Float32(t_3 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)))) ? Float32(Float32((t_2 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) + (t_1 ^ Float32(2.0))) : max(Float32(Float32((t_2 ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) + (t_1 ^ Float32(2.0))), Float32(t_3 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)))))))); else tmp = log2(sqrt(((Float32(Float32(Float32(t_0 * t_0) + Float32(t_2 * t_2)) + Float32(t_1 * t_1)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_2 * t_2)) + Float32(t_1 * t_1))) ? fma(abs(floor(w)), abs(Float32(Float32(dY_46_u_m * floor(w)) * dY_46_u_m)), Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + t_3)) : ((fma(abs(floor(w)), abs(Float32(Float32(dY_46_u_m * floor(w)) * dY_46_u_m)), Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + t_3)) != fma(abs(floor(w)), abs(Float32(Float32(dY_46_u_m * floor(w)) * dY_46_u_m)), Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + t_3))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_2 * t_2)) + Float32(t_1 * t_1)) : max(Float32(Float32(Float32(t_0 * t_0) + Float32(t_2 * t_2)) + Float32(t_1 * t_1)), fma(abs(floor(w)), abs(Float32(Float32(dY_46_u_m * floor(w)) * dY_46_u_m)), Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + t_3))))))); end return tmp end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_1 := \left\lfloor d\right\rfloor \cdot dX.w\\
t_2 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_3 := {\left(dY.v \cdot \left\lfloor h\right\rfloor \right)}^{2}\\
\mathbf{if}\;dY.w \leq 5000:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\left({t\_2}^{2} + {t\_0}^{2}\right) + {t\_1}^{2}, t\_3 + {\left(\left\lfloor w\right\rfloor \cdot dY.u\_m\right)}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_0 \cdot t\_0 + t\_2 \cdot t\_2\right) + t\_1 \cdot t\_1, \mathsf{fma}\left(\left|\left\lfloor w\right\rfloor \right|, \left|\left(dY.u\_m \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\_m\right|, {\left(dY.w \cdot \left\lfloor d\right\rfloor \right)}^{2} + t\_3\right)\right)}\right)\\
\end{array}
\end{array}
if dY.w < 5e3Initial program 69.0%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
*-commutativeN/A
lower-*.f3255.0
lift-*.f32N/A
*-commutativeN/A
lower-*.f3255.4
lift-+.f32N/A
+-commutativeN/A
Applied rewrites47.3%
Taylor expanded in dY.w around 0
+-commutativeN/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-fma.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f32N/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3250.3
Applied rewrites50.6%
Applied rewrites64.8%
if 5e3 < dY.w Initial program 58.9%
lift-+.f32N/A
lift-+.f32N/A
associate-+l+N/A
lift-*.f32N/A
fabs-sqrN/A
lift-*.f32N/A
associate-*l*N/A
fabs-mulN/A
lower-fma.f32N/A
Applied rewrites31.6%
Final simplification56.1%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor w) dY.u_m))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor d) dY.w)))
(if (<= dY.w 146.0)
(log2
(sqrt
(fmax
(+
(+ (pow (* (floor h) dX.v) 2.0) (pow (* (floor w) dX.u) 2.0))
(pow (* (floor d) dX.w) 2.0))
(+ (pow (* dY.v (floor h)) 2.0) (pow t_0 2.0)))))
(log2
(sqrt
(fmax
(fma
(fabs dX.v)
(fabs (* dX.v (pow (floor h) 2.0)))
(+ (pow (* dX.u (floor w)) 2.0) (pow (* dX.w (floor d)) 2.0)))
(+ (+ (* t_0 t_0) (* t_1 t_1)) (* t_2 t_2))))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = floorf(w) * dY_46_u_m;
float t_1 = floorf(h) * dY_46_v;
float t_2 = floorf(d) * dY_46_w;
float tmp;
if (dY_46_w <= 146.0f) {
tmp = log2f(sqrtf(fmaxf(((powf((floorf(h) * dX_46_v), 2.0f) + powf((floorf(w) * dX_46_u), 2.0f)) + powf((floorf(d) * dX_46_w), 2.0f)), (powf((dY_46_v * floorf(h)), 2.0f) + powf(t_0, 2.0f)))));
} else {
tmp = log2f(sqrtf(fmaxf(fmaf(fabsf(dX_46_v), fabsf((dX_46_v * powf(floorf(h), 2.0f))), (powf((dX_46_u * floorf(w)), 2.0f) + powf((dX_46_w * floorf(d)), 2.0f))), (((t_0 * t_0) + (t_1 * t_1)) + (t_2 * t_2)))));
}
return tmp;
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = Float32(floor(w) * dY_46_u_m) t_1 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(d) * dY_46_w) tmp = Float32(0.0) if (dY_46_w <= Float32(146.0)) tmp = log2(sqrt(((Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0))) != Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0)))) ? Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) : ((Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (t_0 ^ Float32(2.0))) != Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (t_0 ^ Float32(2.0)))) ? Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0))) : max(Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0))), Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (t_0 ^ Float32(2.0)))))))); else tmp = log2(sqrt(((fma(abs(dX_46_v), abs(Float32(dX_46_v * (floor(h) ^ Float32(2.0)))), Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0)))) != fma(abs(dX_46_v), abs(Float32(dX_46_v * (floor(h) ^ Float32(2.0)))), Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))))) ? Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_2 * t_2)) : ((Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_2 * t_2)) != Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_2 * t_2))) ? fma(abs(dX_46_v), abs(Float32(dX_46_v * (floor(h) ^ Float32(2.0)))), Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0)))) : max(fma(abs(dX_46_v), abs(Float32(dX_46_v * (floor(h) ^ Float32(2.0)))), Float32((Float32(dX_46_u * floor(w)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0)))), Float32(Float32(Float32(t_0 * t_0) + Float32(t_1 * t_1)) + Float32(t_2 * t_2))))))); end return tmp end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := \left\lfloor w\right\rfloor \cdot dY.u\_m\\
t_1 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_2 := \left\lfloor d\right\rfloor \cdot dY.w\\
\mathbf{if}\;dY.w \leq 146:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\right) + {\left(\left\lfloor d\right\rfloor \cdot dX.w\right)}^{2}, {\left(dY.v \cdot \left\lfloor h\right\rfloor \right)}^{2} + {t\_0}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\mathsf{fma}\left(\left|dX.v\right|, \left|dX.v \cdot {\left(\left\lfloor h\right\rfloor \right)}^{2}\right|, {\left(dX.u \cdot \left\lfloor w\right\rfloor \right)}^{2} + {\left(dX.w \cdot \left\lfloor d\right\rfloor \right)}^{2}\right), \left(t\_0 \cdot t\_0 + t\_1 \cdot t\_1\right) + t\_2 \cdot t\_2\right)}\right)\\
\end{array}
\end{array}
if dY.w < 146Initial program 69.5%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
*-commutativeN/A
lower-*.f3256.7
lift-*.f32N/A
*-commutativeN/A
lower-*.f3256.7
lift-+.f32N/A
+-commutativeN/A
Applied rewrites48.1%
Taylor expanded in dY.w around 0
+-commutativeN/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-fma.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f32N/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3250.3
Applied rewrites50.6%
Applied rewrites65.2%
if 146 < dY.w Initial program 58.0%
lift-+.f32N/A
lift-+.f32N/A
+-commutativeN/A
associate-+l+N/A
lift-*.f32N/A
fabs-sqrN/A
lift-*.f32N/A
associate-*r*N/A
*-commutativeN/A
fabs-mulN/A
lower-fma.f32N/A
Applied rewrites48.7%
Final simplification60.8%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (pow (* dY.v (floor h)) 2.0)))
(if (<= dX.u 500000.0)
(log2
(sqrt
(fmax
(+ (pow (* dX.v (floor h)) 2.0) (pow (* dX.w (floor d)) 2.0))
(+
(+ t_0 (pow (* dY.u_m (floor w)) 2.0))
(pow (* dY.w (floor d)) 2.0)))))
(log2
(sqrt
(fmax
(+
(+ (pow (* (floor h) dX.v) 2.0) (pow (* (floor w) dX.u) 2.0))
(pow (* (floor d) dX.w) 2.0))
(+ t_0 (pow (* (floor w) dY.u_m) 2.0))))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = powf((dY_46_v * floorf(h)), 2.0f);
float tmp;
if (dX_46_u <= 500000.0f) {
tmp = log2f(sqrtf(fmaxf((powf((dX_46_v * floorf(h)), 2.0f) + powf((dX_46_w * floorf(d)), 2.0f)), ((t_0 + powf((dY_46_u_m * floorf(w)), 2.0f)) + powf((dY_46_w * floorf(d)), 2.0f)))));
} else {
tmp = log2f(sqrtf(fmaxf(((powf((floorf(h) * dX_46_v), 2.0f) + powf((floorf(w) * dX_46_u), 2.0f)) + powf((floorf(d) * dX_46_w), 2.0f)), (t_0 + powf((floorf(w) * dY_46_u_m), 2.0f)))));
}
return tmp;
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = Float32(dY_46_v * floor(h)) ^ Float32(2.0) tmp = Float32(0.0) if (dX_46_u <= Float32(500000.0)) tmp = log2(sqrt(((Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))) != Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0)))) ? Float32(Float32(t_0 + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0))) : ((Float32(Float32(t_0 + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0))) != Float32(Float32(t_0 + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0)))) ? Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))) : max(Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))), Float32(Float32(t_0 + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0)))))))); else tmp = log2(sqrt(((Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0))) != Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0)))) ? Float32(t_0 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0))) : ((Float32(t_0 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0))) != Float32(t_0 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)))) ? Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0))) : max(Float32(Float32((Float32(floor(h) * dX_46_v) ^ Float32(2.0)) + (Float32(floor(w) * dX_46_u) ^ Float32(2.0))) + (Float32(floor(d) * dX_46_w) ^ Float32(2.0))), Float32(t_0 + (Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)))))))); end return tmp end
dY.u_m = abs(dY_46_u); function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = (dY_46_v * floor(h)) ^ single(2.0); tmp = single(0.0); if (dX_46_u <= single(500000.0)) tmp = log2(sqrt(max((((dX_46_v * floor(h)) ^ single(2.0)) + ((dX_46_w * floor(d)) ^ single(2.0))), ((t_0 + ((dY_46_u_m * floor(w)) ^ single(2.0))) + ((dY_46_w * floor(d)) ^ single(2.0)))))); else tmp = log2(sqrt(max(((((floor(h) * dX_46_v) ^ single(2.0)) + ((floor(w) * dX_46_u) ^ single(2.0))) + ((floor(d) * dX_46_w) ^ single(2.0))), (t_0 + ((floor(w) * dY_46_u_m) ^ single(2.0)))))); end tmp_2 = tmp; end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := {\left(dY.v \cdot \left\lfloor h\right\rfloor \right)}^{2}\\
\mathbf{if}\;dX.u \leq 500000:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left({\left(dX.v \cdot \left\lfloor h\right\rfloor \right)}^{2} + {\left(dX.w \cdot \left\lfloor d\right\rfloor \right)}^{2}, \left(t\_0 + {\left(dY.u\_m \cdot \left\lfloor w\right\rfloor \right)}^{2}\right) + {\left(dY.w \cdot \left\lfloor d\right\rfloor \right)}^{2}\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\left({\left(\left\lfloor h\right\rfloor \cdot dX.v\right)}^{2} + {\left(\left\lfloor w\right\rfloor \cdot dX.u\right)}^{2}\right) + {\left(\left\lfloor d\right\rfloor \cdot dX.w\right)}^{2}, t\_0 + {\left(\left\lfloor w\right\rfloor \cdot dY.u\_m\right)}^{2}\right)}\right)\\
\end{array}
\end{array}
if dX.u < 5e5Initial program 67.8%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3265.0
Applied rewrites65.0%
Applied rewrites65.0%
if 5e5 < dX.u Initial program 59.5%
lift-+.f32N/A
+-commutativeN/A
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
*-commutativeN/A
lower-fma.f32N/A
*-commutativeN/A
lower-*.f3255.7
lift-*.f32N/A
*-commutativeN/A
lower-*.f3257.3
lift-+.f32N/A
+-commutativeN/A
Applied rewrites54.1%
Taylor expanded in dY.w around 0
+-commutativeN/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-fma.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f32N/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3254.7
Applied rewrites54.7%
Applied rewrites56.8%
Final simplification63.6%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(log2
(sqrt
(fmax
(+ (pow (* dX.v (floor h)) 2.0) (pow (* dX.w (floor d)) 2.0))
(+
(+ (pow (* dY.v (floor h)) 2.0) (pow (* dY.u_m (floor w)) 2.0))
(pow (* dY.w (floor d)) 2.0))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
return log2f(sqrtf(fmaxf((powf((dX_46_v * floorf(h)), 2.0f) + powf((dX_46_w * floorf(d)), 2.0f)), ((powf((dY_46_v * floorf(h)), 2.0f) + powf((dY_46_u_m * floorf(w)), 2.0f)) + powf((dY_46_w * floorf(d)), 2.0f)))));
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) return log2(sqrt(((Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))) != Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0)))) ? Float32(Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0))) : ((Float32(Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0))) != Float32(Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0)))) ? Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))) : max(Float32((Float32(dX_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dX_46_w * floor(d)) ^ Float32(2.0))), Float32(Float32((Float32(dY_46_v * floor(h)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_w * floor(d)) ^ Float32(2.0)))))))) end
dY.u_m = abs(dY_46_u); function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) tmp = log2(sqrt(max((((dX_46_v * floor(h)) ^ single(2.0)) + ((dX_46_w * floor(d)) ^ single(2.0))), ((((dY_46_v * floor(h)) ^ single(2.0)) + ((dY_46_u_m * floor(w)) ^ single(2.0))) + ((dY_46_w * floor(d)) ^ single(2.0)))))); end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\log_{2} \left(\sqrt{\mathsf{max}\left({\left(dX.v \cdot \left\lfloor h\right\rfloor \right)}^{2} + {\left(dX.w \cdot \left\lfloor d\right\rfloor \right)}^{2}, \left({\left(dY.v \cdot \left\lfloor h\right\rfloor \right)}^{2} + {\left(dY.u\_m \cdot \left\lfloor w\right\rfloor \right)}^{2}\right) + {\left(dY.w \cdot \left\lfloor d\right\rfloor \right)}^{2}\right)}\right)
\end{array}
Initial program 66.4%
Taylor expanded in dX.u around 0
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3260.4
Applied rewrites60.4%
Applied rewrites60.4%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor d) dY.w))
(t_2 (* (floor w) dX.u))
(t_3 (pow (floor d) 2.0))
(t_4 (* (floor d) dX.w)))
(if (<= dX.v 5.0)
(log2
(sqrt
(fmax
(* (* t_3 dX.w) dX.w)
(+
(+
(pow (* (floor w) dY.u_m) 2.0)
(* (pow (floor h) 2.0) (* dY.v dY.v)))
(* t_1 t_1)))))
(log2
(sqrt
(fmax
(+ (+ (* t_2 t_2) (* t_0 t_0)) (* t_4 t_4))
(* (* t_3 dY.w) dY.w)))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = floorf(h) * dX_46_v;
float t_1 = floorf(d) * dY_46_w;
float t_2 = floorf(w) * dX_46_u;
float t_3 = powf(floorf(d), 2.0f);
float t_4 = floorf(d) * dX_46_w;
float tmp;
if (dX_46_v <= 5.0f) {
tmp = log2f(sqrtf(fmaxf(((t_3 * dX_46_w) * dX_46_w), ((powf((floorf(w) * dY_46_u_m), 2.0f) + (powf(floorf(h), 2.0f) * (dY_46_v * dY_46_v))) + (t_1 * t_1)))));
} else {
tmp = log2f(sqrtf(fmaxf((((t_2 * t_2) + (t_0 * t_0)) + (t_4 * t_4)), ((t_3 * dY_46_w) * dY_46_w))));
}
return tmp;
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = Float32(floor(h) * dX_46_v) t_1 = Float32(floor(d) * dY_46_w) t_2 = Float32(floor(w) * dX_46_u) t_3 = floor(d) ^ Float32(2.0) t_4 = Float32(floor(d) * dX_46_w) tmp = Float32(0.0) if (dX_46_v <= Float32(5.0)) tmp = log2(sqrt(((Float32(Float32(t_3 * dX_46_w) * dX_46_w) != Float32(Float32(t_3 * dX_46_w) * dX_46_w)) ? Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_1 * t_1)) : ((Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_1 * t_1)) != Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_1 * t_1))) ? Float32(Float32(t_3 * dX_46_w) * dX_46_w) : max(Float32(Float32(t_3 * dX_46_w) * dX_46_w), Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_1 * t_1))))))); else tmp = log2(sqrt(((Float32(Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) + Float32(t_4 * t_4)) != Float32(Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) + Float32(t_4 * t_4))) ? Float32(Float32(t_3 * dY_46_w) * dY_46_w) : ((Float32(Float32(t_3 * dY_46_w) * dY_46_w) != Float32(Float32(t_3 * dY_46_w) * dY_46_w)) ? Float32(Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) + Float32(t_4 * t_4)) : max(Float32(Float32(Float32(t_2 * t_2) + Float32(t_0 * t_0)) + Float32(t_4 * t_4)), Float32(Float32(t_3 * dY_46_w) * dY_46_w)))))); end return tmp end
dY.u_m = abs(dY_46_u); function tmp_2 = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = floor(h) * dX_46_v; t_1 = floor(d) * dY_46_w; t_2 = floor(w) * dX_46_u; t_3 = floor(d) ^ single(2.0); t_4 = floor(d) * dX_46_w; tmp = single(0.0); if (dX_46_v <= single(5.0)) tmp = log2(sqrt(max(((t_3 * dX_46_w) * dX_46_w), ((((floor(w) * dY_46_u_m) ^ single(2.0)) + ((floor(h) ^ single(2.0)) * (dY_46_v * dY_46_v))) + (t_1 * t_1))))); else tmp = log2(sqrt(max((((t_2 * t_2) + (t_0 * t_0)) + (t_4 * t_4)), ((t_3 * dY_46_w) * dY_46_w)))); end tmp_2 = tmp; end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor d\right\rfloor \cdot dY.w\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := {\left(\left\lfloor d\right\rfloor \right)}^{2}\\
t_4 := \left\lfloor d\right\rfloor \cdot dX.w\\
\mathbf{if}\;dX.v \leq 5:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_3 \cdot dX.w\right) \cdot dX.w, \left({\left(\left\lfloor w\right\rfloor \cdot dY.u\_m\right)}^{2} + {\left(\left\lfloor h\right\rfloor \right)}^{2} \cdot \left(dY.v \cdot dY.v\right)\right) + t\_1 \cdot t\_1\right)}\right)\\
\mathbf{else}:\\
\;\;\;\;\log_{2} \left(\sqrt{\mathsf{max}\left(\left(t\_2 \cdot t\_2 + t\_0 \cdot t\_0\right) + t\_4 \cdot t\_4, \left(t\_3 \cdot dY.w\right) \cdot dY.w\right)}\right)\\
\end{array}
\end{array}
if dX.v < 5Initial program 67.3%
Taylor expanded in dX.w around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3255.5
Applied rewrites55.5%
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
unpow-prod-downN/A
lower-*.f32N/A
lower-pow.f32N/A
pow2N/A
lower-*.f3255.5
Applied rewrites55.5%
lift-*.f32N/A
pow2N/A
lower-pow.f3255.5
Applied rewrites55.5%
if 5 < dX.v Initial program 63.9%
Taylor expanded in dY.w around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3261.0
Applied rewrites61.0%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(let* ((t_0 (* (floor d) dY.w)))
(log2
(sqrt
(fmax
(* (* (pow (floor d) 2.0) dX.w) dX.w)
(+
(+ (pow (* (floor w) dY.u_m) 2.0) (* (pow (floor h) 2.0) (* dY.v dY.v)))
(* t_0 t_0)))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
float t_0 = floorf(d) * dY_46_w;
return log2f(sqrtf(fmaxf(((powf(floorf(d), 2.0f) * dX_46_w) * dX_46_w), ((powf((floorf(w) * dY_46_u_m), 2.0f) + (powf(floorf(h), 2.0f) * (dY_46_v * dY_46_v))) + (t_0 * t_0)))));
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = Float32(floor(d) * dY_46_w) return log2(sqrt(((Float32(Float32((floor(d) ^ Float32(2.0)) * dX_46_w) * dX_46_w) != Float32(Float32((floor(d) ^ Float32(2.0)) * dX_46_w) * dX_46_w)) ? Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_0 * t_0)) : ((Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_0 * t_0)) != Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_0 * t_0))) ? Float32(Float32((floor(d) ^ Float32(2.0)) * dX_46_w) * dX_46_w) : max(Float32(Float32((floor(d) ^ Float32(2.0)) * dX_46_w) * dX_46_w), Float32(Float32((Float32(floor(w) * dY_46_u_m) ^ Float32(2.0)) + Float32((floor(h) ^ Float32(2.0)) * Float32(dY_46_v * dY_46_v))) + Float32(t_0 * t_0))))))) end
dY.u_m = abs(dY_46_u); function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) t_0 = floor(d) * dY_46_w; tmp = log2(sqrt(max((((floor(d) ^ single(2.0)) * dX_46_w) * dX_46_w), ((((floor(w) * dY_46_u_m) ^ single(2.0)) + ((floor(h) ^ single(2.0)) * (dY_46_v * dY_46_v))) + (t_0 * t_0))))); end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\begin{array}{l}
t_0 := \left\lfloor d\right\rfloor \cdot dY.w\\
\log_{2} \left(\sqrt{\mathsf{max}\left(\left({\left(\left\lfloor d\right\rfloor \right)}^{2} \cdot dX.w\right) \cdot dX.w, \left({\left(\left\lfloor w\right\rfloor \cdot dY.u\_m\right)}^{2} + {\left(\left\lfloor h\right\rfloor \right)}^{2} \cdot \left(dY.v \cdot dY.v\right)\right) + t\_0 \cdot t\_0\right)}\right)
\end{array}
\end{array}
Initial program 66.4%
Taylor expanded in dX.w around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3252.7
Applied rewrites52.7%
lift-*.f32N/A
pow2N/A
lift-*.f32N/A
unpow-prod-downN/A
lower-*.f32N/A
lower-pow.f32N/A
pow2N/A
lower-*.f3252.7
Applied rewrites52.7%
lift-*.f32N/A
pow2N/A
lower-pow.f3252.7
Applied rewrites52.7%
dY.u_m = (fabs.f32 dY.u)
(FPCore (w h d dX.u dX.v dX.w dY.u_m dY.v dY.w)
:precision binary32
(log2
(sqrt
(fmax
(pow (* (floor d) dX.w) 2.0)
(+
(+ (pow (* dY.w (floor d)) 2.0) (pow (* dY.u_m (floor w)) 2.0))
(pow (* dY.v (floor h)) 2.0))))))dY.u_m = fabs(dY_46_u);
float code(float w, float h, float d, float dX_46_u, float dX_46_v, float dX_46_w, float dY_46_u_m, float dY_46_v, float dY_46_w) {
return log2f(sqrtf(fmaxf(powf((floorf(d) * dX_46_w), 2.0f), ((powf((dY_46_w * floorf(d)), 2.0f) + powf((dY_46_u_m * floorf(w)), 2.0f)) + powf((dY_46_v * floorf(h)), 2.0f)))));
}
dY.u_m = abs(dY_46_u) function code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) return log2(sqrt((((Float32(floor(d) * dX_46_w) ^ Float32(2.0)) != (Float32(floor(d) * dX_46_w) ^ Float32(2.0))) ? Float32(Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_v * floor(h)) ^ Float32(2.0))) : ((Float32(Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_v * floor(h)) ^ Float32(2.0))) != Float32(Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_v * floor(h)) ^ Float32(2.0)))) ? (Float32(floor(d) * dX_46_w) ^ Float32(2.0)) : max((Float32(floor(d) * dX_46_w) ^ Float32(2.0)), Float32(Float32((Float32(dY_46_w * floor(d)) ^ Float32(2.0)) + (Float32(dY_46_u_m * floor(w)) ^ Float32(2.0))) + (Float32(dY_46_v * floor(h)) ^ Float32(2.0)))))))) end
dY.u_m = abs(dY_46_u); function tmp = code(w, h, d, dX_46_u, dX_46_v, dX_46_w, dY_46_u_m, dY_46_v, dY_46_w) tmp = log2(sqrt(max(((floor(d) * dX_46_w) ^ single(2.0)), ((((dY_46_w * floor(d)) ^ single(2.0)) + ((dY_46_u_m * floor(w)) ^ single(2.0))) + ((dY_46_v * floor(h)) ^ single(2.0)))))); end
\begin{array}{l}
dY.u_m = \left|dY.u\right|
\\
\log_{2} \left(\sqrt{\mathsf{max}\left({\left(\left\lfloor d\right\rfloor \cdot dX.w\right)}^{2}, \left({\left(dY.w \cdot \left\lfloor d\right\rfloor \right)}^{2} + {\left(dY.u\_m \cdot \left\lfloor w\right\rfloor \right)}^{2}\right) + {\left(dY.v \cdot \left\lfloor h\right\rfloor \right)}^{2}\right)}\right)
\end{array}
Initial program 66.4%
Taylor expanded in dX.w around inf
*-commutativeN/A
unpow2N/A
associate-*r*N/A
lower-*.f32N/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3252.7
Applied rewrites52.7%
Applied rewrites52.7%
herbie shell --seed 2024339
(FPCore (w h d dX.u dX.v dX.w dY.u dY.v dY.w)
:name "Isotropic LOD (LOD)"
:precision binary32
:pre (and (and (and (and (and (and (and (and (and (<= 1.0 w) (<= w 16384.0)) (and (<= 1.0 h) (<= h 16384.0))) (and (<= 1.0 d) (<= d 4096.0))) (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 dX.w)) (<= (fabs dX.w) 1e+20))) (and (<= 1e-20 (fabs dY.u)) (<= (fabs dY.u) 1e+20))) (and (<= 1e-20 (fabs dY.v)) (<= (fabs dY.v) 1e+20))) (and (<= 1e-20 (fabs dY.w)) (<= (fabs dY.w) 1e+20)))
(log2 (sqrt (fmax (+ (+ (* (* (floor w) dX.u) (* (floor w) dX.u)) (* (* (floor h) dX.v) (* (floor h) dX.v))) (* (* (floor d) dX.w) (* (floor d) dX.w))) (+ (+ (* (* (floor w) dY.u) (* (floor w) dY.u)) (* (* (floor h) dY.v) (* (floor h) dY.v))) (* (* (floor d) dY.w) (* (floor d) dY.w)))))))