
(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 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_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 (* (floor h) dY.v))
(t_1 (* (floor h) (floor h)))
(t_2 (* (floor w) dX.u))
(t_3
(+ (* t_2 t_2) (fma (* t_1 dX.v) dX.v (* (* t_1 (* dX.v dX.v)) 0.0))))
(t_4 (* (floor w) dY.u))
(t_5 (+ (* t_4 t_4) (* t_0 t_0)))
(t_6 (/ 1.0 (sqrt (fmax t_3 t_5)))))
(if (>= t_3 t_5) (* t_6 (* (floor h) dX.v)) (* t_6 t_0))))
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) * dY_46_v;
float t_1 = floorf(h) * floorf(h);
float t_2 = floorf(w) * dX_46_u;
float t_3 = (t_2 * t_2) + fmaf((t_1 * dX_46_v), dX_46_v, ((t_1 * (dX_46_v * dX_46_v)) * 0.0f));
float t_4 = floorf(w) * dY_46_u;
float t_5 = (t_4 * t_4) + (t_0 * t_0);
float t_6 = 1.0f / sqrtf(fmaxf(t_3, t_5));
float tmp;
if (t_3 >= t_5) {
tmp = t_6 * (floorf(h) * dX_46_v);
} else {
tmp = t_6 * t_0;
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * dY_46_v) t_1 = Float32(floor(h) * floor(h)) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(Float32(t_2 * t_2) + fma(Float32(t_1 * dX_46_v), dX_46_v, Float32(Float32(t_1 * Float32(dX_46_v * dX_46_v)) * Float32(0.0)))) t_4 = Float32(floor(w) * dY_46_u) t_5 = Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)) 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 * Float32(floor(h) * dX_46_v)); else tmp = Float32(t_6 * t_0); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_1 := \left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := t\_2 \cdot t\_2 + \mathsf{fma}\left(t\_1 \cdot dX.v, dX.v, \left(t\_1 \cdot \left(dX.v \cdot dX.v\right)\right) \cdot 0\right)\\
t_4 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_5 := t\_4 \cdot t\_4 + t\_0 \cdot t\_0\\
t_6 := \frac{1}{\sqrt{\mathsf{max}\left(t\_3, t\_5\right)}}\\
\mathbf{if}\;t\_3 \geq t\_5:\\
\;\;\;\;t\_6 \cdot \left(\left\lfloor h\right\rfloor \cdot dX.v\right)\\
\mathbf{else}:\\
\;\;\;\;t\_6 \cdot t\_0\\
\end{array}
\end{array}
Initial program 76.6%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites76.6%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites77.6%
(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) dX.u))
(t_2
(+ (* t_1 t_1) (fma (* t_0 dX.v) dX.v (* (* t_0 (* dX.v dX.v)) 0.0))))
(t_3
(fma
(* (* dY.v (floor h)) (floor h))
dY.v
(* (* (* dY.u dY.u) (floor w)) (floor w))))
(t_4 (/ 1.0 (sqrt (fmax t_2 t_3)))))
(if (>= t_2 t_3) (* t_4 (* (floor h) dX.v)) (* t_4 (* (floor h) dY.v)))))
float code(float w, float h, float dX_46_u, float dX_46_v, float dY_46_u, float dY_46_v, float maxAniso) {
float t_0 = floorf(h) * floorf(h);
float t_1 = floorf(w) * dX_46_u;
float t_2 = (t_1 * t_1) + fmaf((t_0 * dX_46_v), dX_46_v, ((t_0 * (dX_46_v * dX_46_v)) * 0.0f));
float t_3 = fmaf(((dY_46_v * floorf(h)) * floorf(h)), dY_46_v, (((dY_46_u * dY_46_u) * floorf(w)) * floorf(w)));
float t_4 = 1.0f / sqrtf(fmaxf(t_2, t_3));
float tmp;
if (t_2 >= t_3) {
tmp = t_4 * (floorf(h) * dX_46_v);
} else {
tmp = t_4 * (floorf(h) * dY_46_v);
}
return tmp;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(h) * floor(h)) t_1 = Float32(floor(w) * dX_46_u) t_2 = Float32(Float32(t_1 * t_1) + fma(Float32(t_0 * dX_46_v), dX_46_v, Float32(Float32(t_0 * Float32(dX_46_v * dX_46_v)) * Float32(0.0)))) t_3 = fma(Float32(Float32(dY_46_v * floor(h)) * floor(h)), dY_46_v, Float32(Float32(Float32(dY_46_u * dY_46_u) * floor(w)) * floor(w))) t_4 = Float32(Float32(1.0) / sqrt(fmax(t_2, t_3))) tmp = Float32(0.0) if (t_2 >= t_3) tmp = Float32(t_4 * Float32(floor(h) * dX_46_v)); else tmp = Float32(t_4 * Float32(floor(h) * 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 dX.u\\
t_2 := t\_1 \cdot t\_1 + \mathsf{fma}\left(t\_0 \cdot dX.v, dX.v, \left(t\_0 \cdot \left(dX.v \cdot dX.v\right)\right) \cdot 0\right)\\
t_3 := \mathsf{fma}\left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot \left\lfloor h\right\rfloor , dY.v, \left(\left(dY.u \cdot dY.u\right) \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor w\right\rfloor \right)\\
t_4 := \frac{1}{\sqrt{\mathsf{max}\left(t\_2, t\_3\right)}}\\
\mathbf{if}\;t\_2 \geq t\_3:\\
\;\;\;\;t\_4 \cdot \left(\left\lfloor h\right\rfloor \cdot dX.v\right)\\
\mathbf{else}:\\
\;\;\;\;t\_4 \cdot \left(\left\lfloor h\right\rfloor \cdot dY.v\right)\\
\end{array}
\end{array}
Initial program 76.6%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites76.6%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites77.6%
Applied rewrites77.6%
Applied rewrites77.6%
Applied rewrites77.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor h)))
(t_1 (* (floor h) dY.v))
(t_2 (* (floor w) dX.u))
(t_3 (* (floor w) dY.u))
(t_4
(/
1.0
(sqrt
(fmax
(+
(* t_2 t_2)
(fma (* t_0 dX.v) dX.v (* (* t_0 (* dX.v dX.v)) 0.0)))
(+ (* t_3 t_3) (* t_1 t_1)))))))
(if (>=
(fma (* (floor w) t_2) dX.u (* (* (* dX.v (floor h)) dX.v) (floor h)))
(fma
(* (* dY.u dY.u) (floor w))
(floor w)
(* (* (* dY.v (floor h)) dY.v) (floor h))))
(* t_4 (* (floor h) dX.v))
(* t_4 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 = floorf(h) * dY_46_v;
float t_2 = floorf(w) * dX_46_u;
float t_3 = floorf(w) * dY_46_u;
float t_4 = 1.0f / sqrtf(fmaxf(((t_2 * t_2) + fmaf((t_0 * dX_46_v), dX_46_v, ((t_0 * (dX_46_v * dX_46_v)) * 0.0f))), ((t_3 * t_3) + (t_1 * t_1))));
float tmp;
if (fmaf((floorf(w) * t_2), dX_46_u, (((dX_46_v * floorf(h)) * dX_46_v) * floorf(h))) >= fmaf(((dY_46_u * dY_46_u) * floorf(w)), floorf(w), (((dY_46_v * floorf(h)) * dY_46_v) * floorf(h)))) {
tmp = t_4 * (floorf(h) * dX_46_v);
} else {
tmp = t_4 * 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 = Float32(floor(h) * dY_46_v) t_2 = Float32(floor(w) * dX_46_u) t_3 = Float32(floor(w) * dY_46_u) t_4 = Float32(Float32(1.0) / sqrt(fmax(Float32(Float32(t_2 * t_2) + fma(Float32(t_0 * dX_46_v), dX_46_v, Float32(Float32(t_0 * Float32(dX_46_v * dX_46_v)) * Float32(0.0)))), Float32(Float32(t_3 * t_3) + Float32(t_1 * t_1))))) tmp = Float32(0.0) if (fma(Float32(floor(w) * t_2), dX_46_u, Float32(Float32(Float32(dX_46_v * floor(h)) * dX_46_v) * floor(h))) >= fma(Float32(Float32(dY_46_u * dY_46_u) * floor(w)), floor(w), Float32(Float32(Float32(dY_46_v * floor(h)) * dY_46_v) * floor(h)))) tmp = Float32(t_4 * Float32(floor(h) * dX_46_v)); else tmp = Float32(t_4 * 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 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_2 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_3 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_4 := \frac{1}{\sqrt{\mathsf{max}\left(t\_2 \cdot t\_2 + \mathsf{fma}\left(t\_0 \cdot dX.v, dX.v, \left(t\_0 \cdot \left(dX.v \cdot dX.v\right)\right) \cdot 0\right), t\_3 \cdot t\_3 + t\_1 \cdot t\_1\right)}}\\
\mathbf{if}\;\mathsf{fma}\left(\left\lfloor w\right\rfloor \cdot t\_2, dX.u, \left(\left(dX.v \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v\right) \cdot \left\lfloor h\right\rfloor \right) \geq \mathsf{fma}\left(\left(dY.u \cdot dY.u\right) \cdot \left\lfloor w\right\rfloor , \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\_4 \cdot \left(\left\lfloor h\right\rfloor \cdot dX.v\right)\\
\mathbf{else}:\\
\;\;\;\;t\_4 \cdot t\_1\\
\end{array}
\end{array}
Initial program 76.6%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites76.6%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
swap-sqrN/A
unpow2N/A
unpow2N/A
*-commutativeN/A
*-rgt-identityN/A
metadata-evalN/A
distribute-lft-inN/A
Applied rewrites77.6%
Applied rewrites76.8%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) dX.v))
(t_1 (* (floor h) (floor h)))
(t_2 (* (floor w) (floor w)))
(t_3 (* (floor w) dY.u))
(t_4 (* (floor w) dX.u))
(t_5 (+ (* t_4 t_4) (* t_0 t_0)))
(t_6 (* (floor h) dY.v))
(t_7 (+ (* t_3 t_3) (* t_6 t_6))))
(if (>= t_5 t_7)
(*
(/
dX.v
(sqrt
(fmax
(fma (* t_1 dX.v) dX.v (* t_2 (* dX.u dX.u)))
(fma (* t_2 dY.u) dY.u (* (* dY.v dY.v) t_1)))))
(floor h))
(* (/ 1.0 (sqrt (fmax t_5 t_7))) t_6))))
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(h) * floorf(h);
float t_2 = floorf(w) * floorf(w);
float t_3 = floorf(w) * dY_46_u;
float t_4 = floorf(w) * dX_46_u;
float t_5 = (t_4 * t_4) + (t_0 * t_0);
float t_6 = floorf(h) * dY_46_v;
float t_7 = (t_3 * t_3) + (t_6 * t_6);
float tmp;
if (t_5 >= t_7) {
tmp = (dX_46_v / sqrtf(fmaxf(fmaf((t_1 * dX_46_v), dX_46_v, (t_2 * (dX_46_u * dX_46_u))), fmaf((t_2 * dY_46_u), dY_46_u, ((dY_46_v * dY_46_v) * t_1))))) * floorf(h);
} else {
tmp = (1.0f / sqrtf(fmaxf(t_5, t_7))) * t_6;
}
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(h) * floor(h)) t_2 = Float32(floor(w) * floor(w)) t_3 = Float32(floor(w) * dY_46_u) t_4 = Float32(floor(w) * dX_46_u) t_5 = Float32(Float32(t_4 * t_4) + Float32(t_0 * t_0)) t_6 = Float32(floor(h) * dY_46_v) t_7 = Float32(Float32(t_3 * t_3) + Float32(t_6 * t_6)) tmp = Float32(0.0) if (t_5 >= t_7) tmp = Float32(Float32(dX_46_v / sqrt(fmax(fma(Float32(t_1 * dX_46_v), dX_46_v, Float32(t_2 * Float32(dX_46_u * dX_46_u))), fma(Float32(t_2 * dY_46_u), dY_46_u, Float32(Float32(dY_46_v * dY_46_v) * t_1))))) * floor(h)); else tmp = Float32(Float32(Float32(1.0) / sqrt(fmax(t_5, t_7))) * t_6); end return tmp end
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left\lfloor h\right\rfloor \cdot dX.v\\
t_1 := \left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \\
t_2 := \left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \\
t_3 := \left\lfloor w\right\rfloor \cdot dY.u\\
t_4 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_5 := t\_4 \cdot t\_4 + t\_0 \cdot t\_0\\
t_6 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_7 := t\_3 \cdot t\_3 + t\_6 \cdot t\_6\\
\mathbf{if}\;t\_5 \geq t\_7:\\
\;\;\;\;\frac{dX.v}{\sqrt{\mathsf{max}\left(\mathsf{fma}\left(t\_1 \cdot dX.v, dX.v, t\_2 \cdot \left(dX.u \cdot dX.u\right)\right), \mathsf{fma}\left(t\_2 \cdot dY.u, dY.u, \left(dY.v \cdot dY.v\right) \cdot t\_1\right)\right)}} \cdot \left\lfloor h\right\rfloor \\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\sqrt{\mathsf{max}\left(t\_5, t\_7\right)}} \cdot t\_6\\
\end{array}
\end{array}
Initial program 76.6%
Applied rewrites76.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0
(fma
(* (* (floor w) dY.u) (floor w))
dY.u
(* (* (* dY.v (floor h)) (floor h)) dY.v)))
(t_1
(fma
(* (* (floor h) (floor h)) dX.v)
dX.v
(* (* (floor w) (floor w)) (* dX.u dX.u))))
(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(((floorf(w) * dY_46_u) * floorf(w)), dY_46_u, (((dY_46_v * floorf(h)) * floorf(h)) * dY_46_v));
float t_1 = fmaf(((floorf(h) * floorf(h)) * dX_46_v), dX_46_v, ((floorf(w) * floorf(w)) * (dX_46_u * dX_46_u)));
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(floor(w) * dY_46_u) * floor(w)), dY_46_u, Float32(Float32(Float32(dY_46_v * floor(h)) * floor(h)) * dY_46_v)) t_1 = fma(Float32(Float32(floor(h) * floor(h)) * dX_46_v), dX_46_v, Float32(Float32(floor(w) * floor(w)) * Float32(dX_46_u * dX_46_u))) 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(\left\lfloor w\right\rfloor \cdot dY.u\right) \cdot \left\lfloor w\right\rfloor , dY.u, \left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v\right)\\
t_1 := \mathsf{fma}\left(\left(\left\lfloor h\right\rfloor \cdot \left\lfloor h\right\rfloor \right) \cdot dX.v, dX.v, \left(\left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dX.u \cdot dX.u\right)\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 76.6%
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-floor.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-floor.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
associate-*l*N/A
lift-*.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-floor.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-*.f3276.5
Applied rewrites76.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor h)))
(t_1 (fma (* (* (floor w) dY.u) (floor w)) dY.u (* (* dY.v dY.v) t_0)))
(t_2 (fma (* t_0 dX.v) dX.v (* (* (floor w) (floor w)) (* dX.u dX.u))))
(t_3 (/ (floor h) (sqrt (fmax t_2 t_1)))))
(if (>= t_2 t_1) (* t_3 dX.v) (* t_3 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 = fmaf(((floorf(w) * dY_46_u) * floorf(w)), dY_46_u, ((dY_46_v * dY_46_v) * t_0));
float t_2 = fmaf((t_0 * dX_46_v), dX_46_v, ((floorf(w) * floorf(w)) * (dX_46_u * dX_46_u)));
float t_3 = floorf(h) / sqrtf(fmaxf(t_2, t_1));
float tmp;
if (t_2 >= t_1) {
tmp = t_3 * dX_46_v;
} else {
tmp = t_3 * 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 = fma(Float32(Float32(floor(w) * dY_46_u) * floor(w)), dY_46_u, Float32(Float32(dY_46_v * dY_46_v) * t_0)) t_2 = fma(Float32(t_0 * dX_46_v), dX_46_v, Float32(Float32(floor(w) * floor(w)) * Float32(dX_46_u * dX_46_u))) t_3 = Float32(floor(h) / sqrt(fmax(t_2, t_1))) tmp = Float32(0.0) if (t_2 >= t_1) tmp = Float32(t_3 * dX_46_v); else tmp = Float32(t_3 * 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 := \mathsf{fma}\left(\left(\left\lfloor w\right\rfloor \cdot dY.u\right) \cdot \left\lfloor w\right\rfloor , dY.u, \left(dY.v \cdot dY.v\right) \cdot t\_0\right)\\
t_2 := \mathsf{fma}\left(t\_0 \cdot dX.v, dX.v, \left(\left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dX.u \cdot dX.u\right)\right)\\
t_3 := \frac{\left\lfloor h\right\rfloor }{\sqrt{\mathsf{max}\left(t\_2, t\_1\right)}}\\
\mathbf{if}\;t\_2 \geq t\_1:\\
\;\;\;\;t\_3 \cdot dX.v\\
\mathbf{else}:\\
\;\;\;\;t\_3 \cdot dY.v\\
\end{array}
\end{array}
Initial program 76.6%
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor h)))
(t_1
(/
(floor h)
(sqrt
(fmax
(fma
(* (* dX.v (floor h)) dX.v)
(floor h)
(* (* (* dX.u (floor w)) dX.u) (floor w)))
(fma
(* (* dY.v (floor h)) dY.v)
(floor h)
(* (* (* dY.u (floor w)) (floor w)) dY.u)))))))
(if (>=
(fma (* t_0 dX.v) dX.v (* (* (floor w) (floor w)) (* dX.u dX.u)))
(fma (* (* (floor w) dY.u) (floor w)) dY.u (* (* dY.v dY.v) t_0)))
(* t_1 dX.v)
(* t_1 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(h) / sqrtf(fmaxf(fmaf(((dX_46_v * floorf(h)) * dX_46_v), floorf(h), (((dX_46_u * floorf(w)) * dX_46_u) * floorf(w))), fmaf(((dY_46_v * floorf(h)) * dY_46_v), floorf(h), (((dY_46_u * floorf(w)) * floorf(w)) * dY_46_u))));
float tmp;
if (fmaf((t_0 * dX_46_v), dX_46_v, ((floorf(w) * floorf(w)) * (dX_46_u * dX_46_u))) >= fmaf(((floorf(w) * dY_46_u) * floorf(w)), dY_46_u, ((dY_46_v * dY_46_v) * t_0))) {
tmp = t_1 * dX_46_v;
} else {
tmp = t_1 * 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(h) / 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))), fma(Float32(Float32(dY_46_v * floor(h)) * dY_46_v), floor(h), Float32(Float32(Float32(dY_46_u * floor(w)) * floor(w)) * dY_46_u))))) tmp = Float32(0.0) if (fma(Float32(t_0 * dX_46_v), dX_46_v, Float32(Float32(floor(w) * floor(w)) * Float32(dX_46_u * dX_46_u))) >= fma(Float32(Float32(floor(w) * dY_46_u) * floor(w)), dY_46_u, Float32(Float32(dY_46_v * dY_46_v) * t_0))) tmp = Float32(t_1 * dX_46_v); else tmp = Float32(t_1 * 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 := \frac{\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), \mathsf{fma}\left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v, \left\lfloor h\right\rfloor , \left(\left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\right)\right)}}\\
\mathbf{if}\;\mathsf{fma}\left(t\_0 \cdot dX.v, dX.v, \left(\left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dX.u \cdot dX.u\right)\right) \geq \mathsf{fma}\left(\left(\left\lfloor w\right\rfloor \cdot dY.u\right) \cdot \left\lfloor w\right\rfloor , dY.u, \left(dY.v \cdot dY.v\right) \cdot t\_0\right):\\
\;\;\;\;t\_1 \cdot dX.v\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot dY.v\\
\end{array}
\end{array}
Initial program 76.6%
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
Applied rewrites76.5%
Applied rewrites76.5%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor h) (floor h)))
(t_1
(/
(floor h)
(sqrt
(fmax
(fma
(* (* dX.v (floor h)) dX.v)
(floor h)
(* (* (* dX.u dX.u) (floor w)) (floor w)))
(fma
(* (* dY.v (floor h)) dY.v)
(floor h)
(* (* (* dY.u (floor w)) (floor w)) dY.u)))))))
(if (>=
(fma (* t_0 dX.v) dX.v (* (* (floor w) (floor w)) (* dX.u dX.u)))
(fma (* (* (floor w) dY.u) (floor w)) dY.u (* (* dY.v dY.v) t_0)))
(* t_1 dX.v)
(* t_1 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(h) / sqrtf(fmaxf(fmaf(((dX_46_v * floorf(h)) * dX_46_v), floorf(h), (((dX_46_u * dX_46_u) * floorf(w)) * floorf(w))), fmaf(((dY_46_v * floorf(h)) * dY_46_v), floorf(h), (((dY_46_u * floorf(w)) * floorf(w)) * dY_46_u))));
float tmp;
if (fmaf((t_0 * dX_46_v), dX_46_v, ((floorf(w) * floorf(w)) * (dX_46_u * dX_46_u))) >= fmaf(((floorf(w) * dY_46_u) * floorf(w)), dY_46_u, ((dY_46_v * dY_46_v) * t_0))) {
tmp = t_1 * dX_46_v;
} else {
tmp = t_1 * 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(h) / sqrt(fmax(fma(Float32(Float32(dX_46_v * floor(h)) * dX_46_v), floor(h), Float32(Float32(Float32(dX_46_u * dX_46_u) * floor(w)) * floor(w))), fma(Float32(Float32(dY_46_v * floor(h)) * dY_46_v), floor(h), Float32(Float32(Float32(dY_46_u * floor(w)) * floor(w)) * dY_46_u))))) tmp = Float32(0.0) if (fma(Float32(t_0 * dX_46_v), dX_46_v, Float32(Float32(floor(w) * floor(w)) * Float32(dX_46_u * dX_46_u))) >= fma(Float32(Float32(floor(w) * dY_46_u) * floor(w)), dY_46_u, Float32(Float32(dY_46_v * dY_46_v) * t_0))) tmp = Float32(t_1 * dX_46_v); else tmp = Float32(t_1 * 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 := \frac{\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 dX.u\right) \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor w\right\rfloor \right), \mathsf{fma}\left(\left(dY.v \cdot \left\lfloor h\right\rfloor \right) \cdot dY.v, \left\lfloor h\right\rfloor , \left(\left(dY.u \cdot \left\lfloor w\right\rfloor \right) \cdot \left\lfloor w\right\rfloor \right) \cdot dY.u\right)\right)}}\\
\mathbf{if}\;\mathsf{fma}\left(t\_0 \cdot dX.v, dX.v, \left(\left\lfloor w\right\rfloor \cdot \left\lfloor w\right\rfloor \right) \cdot \left(dX.u \cdot dX.u\right)\right) \geq \mathsf{fma}\left(\left(\left\lfloor w\right\rfloor \cdot dY.u\right) \cdot \left\lfloor w\right\rfloor , dY.u, \left(dY.v \cdot dY.v\right) \cdot t\_0\right):\\
\;\;\;\;t\_1 \cdot dX.v\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot dY.v\\
\end{array}
\end{array}
Initial program 76.6%
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
lift-floor.f32N/A
lift-floor.f32N/A
associate-*l*N/A
lift-floor.f32N/A
lift-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lift-floor.f3276.5
Applied rewrites76.5%
Applied rewrites76.5%
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
pow2N/A
*-commutativeN/A
lower-*.f32N/A
pow2N/A
lift-*.f3276.5
Applied rewrites76.5%
lift-*.f32N/A
lift-*.f32N/A
*-commutativeN/A
associate-*l*N/A
pow2N/A
*-commutativeN/A
lower-*.f32N/A
pow2N/A
lift-*.f3276.5
Applied rewrites76.5%
herbie shell --seed 2025129
(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))))