
(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(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(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}
Sampling outcomes in binary32 precision:
Herbie found 11 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(((t_3 != t_3) ? t_5 : ((t_5 != t_5) ? t_3 : max(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 w) dY.u))
(t_1 (* (floor h) dX.v))
(t_2 (* (floor h) dY.v))
(t_3 (+ (* t_0 t_0) (* t_2 t_2)))
(t_4 (+ (pow t_0 2.0) (pow t_2 2.0)))
(t_5 (* (floor w) dX.u))
(t_6 (* t_5 t_5))
(t_7 (+ t_6 (* t_1 t_1)))
(t_8 (/ 1.0 (sqrt (fmax t_7 t_3))))
(t_9 (* t_2 t_8))
(t_10 (* t_1 t_8))
(t_11 (if (>= (* dX.v (* dX.v (pow (floor h) 2.0))) t_4) t_10 t_9))
(t_12 (if (>= t_7 t_3) t_10 t_9)))
(if (<= t_12 -0.9994999766349792)
t_11
(if (<= t_12 4.999999873689376e-5)
(if (>= (pow t_5 2.0) t_4)
t_10
(* t_2 (/ 1.0 (sqrt (fmax (+ t_6 (exp (* 2.0 (log t_1)))) t_3)))))
t_11))))
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(w) * dY_46_u;
float t_1 = floorf(h) * dX_46_v;
float t_2 = floorf(h) * dY_46_v;
float t_3 = (t_0 * t_0) + (t_2 * t_2);
float t_4 = powf(t_0, 2.0f) + powf(t_2, 2.0f);
float t_5 = floorf(w) * dX_46_u;
float t_6 = t_5 * t_5;
float t_7 = t_6 + (t_1 * t_1);
float t_8 = 1.0f / sqrtf(fmaxf(t_7, t_3));
float t_9 = t_2 * t_8;
float t_10 = t_1 * t_8;
float tmp;
if ((dX_46_v * (dX_46_v * powf(floorf(h), 2.0f))) >= t_4) {
tmp = t_10;
} else {
tmp = t_9;
}
float t_11 = tmp;
float tmp_1;
if (t_7 >= t_3) {
tmp_1 = t_10;
} else {
tmp_1 = t_9;
}
float t_12 = tmp_1;
float tmp_2;
if (t_12 <= -0.9994999766349792f) {
tmp_2 = t_11;
} else if (t_12 <= 4.999999873689376e-5f) {
float tmp_3;
if (powf(t_5, 2.0f) >= t_4) {
tmp_3 = t_10;
} else {
tmp_3 = t_2 * (1.0f / sqrtf(fmaxf((t_6 + expf((2.0f * logf(t_1)))), t_3)));
}
tmp_2 = tmp_3;
} else {
tmp_2 = t_11;
}
return tmp_2;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dX_46_v) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(Float32(t_0 * t_0) + Float32(t_2 * t_2)) t_4 = Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) t_5 = Float32(floor(w) * dX_46_u) t_6 = Float32(t_5 * t_5) t_7 = Float32(t_6 + Float32(t_1 * t_1)) t_8 = Float32(Float32(1.0) / sqrt(((t_7 != t_7) ? t_3 : ((t_3 != t_3) ? t_7 : max(t_7, t_3))))) t_9 = Float32(t_2 * t_8) t_10 = Float32(t_1 * t_8) tmp = Float32(0.0) if (Float32(dX_46_v * Float32(dX_46_v * (floor(h) ^ Float32(2.0)))) >= t_4) tmp = t_10; else tmp = t_9; end t_11 = tmp tmp_1 = Float32(0.0) if (t_7 >= t_3) tmp_1 = t_10; else tmp_1 = t_9; end t_12 = tmp_1 tmp_2 = Float32(0.0) if (t_12 <= Float32(-0.9994999766349792)) tmp_2 = t_11; elseif (t_12 <= Float32(4.999999873689376e-5)) tmp_3 = Float32(0.0) if ((t_5 ^ Float32(2.0)) >= t_4) tmp_3 = t_10; else tmp_3 = Float32(t_2 * Float32(Float32(1.0) / sqrt(((Float32(t_6 + exp(Float32(Float32(2.0) * log(t_1)))) != Float32(t_6 + exp(Float32(Float32(2.0) * log(t_1))))) ? t_3 : ((t_3 != t_3) ? Float32(t_6 + exp(Float32(Float32(2.0) * log(t_1)))) : max(Float32(t_6 + exp(Float32(Float32(2.0) * log(t_1)))), t_3)))))); end tmp_2 = tmp_3; else tmp_2 = t_11; end return tmp_2 end
function tmp_5 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(w) * dY_46_u; t_1 = floor(h) * dX_46_v; t_2 = floor(h) * dY_46_v; t_3 = (t_0 * t_0) + (t_2 * t_2); t_4 = (t_0 ^ single(2.0)) + (t_2 ^ single(2.0)); t_5 = floor(w) * dX_46_u; t_6 = t_5 * t_5; t_7 = t_6 + (t_1 * t_1); t_8 = single(1.0) / sqrt(max(t_7, t_3)); t_9 = t_2 * t_8; t_10 = t_1 * t_8; tmp = single(0.0); if ((dX_46_v * (dX_46_v * (floor(h) ^ single(2.0)))) >= t_4) tmp = t_10; else tmp = t_9; end t_11 = tmp; tmp_2 = single(0.0); if (t_7 >= t_3) tmp_2 = t_10; else tmp_2 = t_9; end t_12 = tmp_2; tmp_3 = single(0.0); if (t_12 <= single(-0.9994999766349792)) tmp_3 = t_11; elseif (t_12 <= single(4.999999873689376e-5)) tmp_4 = single(0.0); if ((t_5 ^ single(2.0)) >= t_4) tmp_4 = t_10; else tmp_4 = t_2 * (single(1.0) / sqrt(max((t_6 + exp((single(2.0) * log(t_1)))), t_3))); end tmp_3 = tmp_4; else tmp_3 = t_11; end tmp_5 = tmp_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 dX.v\\
t_2 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_3 := t\_0 \cdot t\_0 + t\_2 \cdot t\_2\\
t_4 := {t\_0}^{2} + {t\_2}^{2}\\
t_5 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_6 := t\_5 \cdot t\_5\\
t_7 := t\_6 + t\_1 \cdot t\_1\\
t_8 := \frac{1}{\sqrt{\mathsf{max}\left(t\_7, t\_3\right)}}\\
t_9 := t\_2 \cdot t\_8\\
t_10 := t\_1 \cdot t\_8\\
t_11 := \begin{array}{l}
\mathbf{if}\;dX.v \cdot \left(dX.v \cdot {\left(\left\lfloor h\right\rfloor \right)}^{2}\right) \geq t\_4:\\
\;\;\;\;t\_10\\
\mathbf{else}:\\
\;\;\;\;t\_9\\
\end{array}\\
t_12 := \begin{array}{l}
\mathbf{if}\;t\_7 \geq t\_3:\\
\;\;\;\;t\_10\\
\mathbf{else}:\\
\;\;\;\;t\_9\\
\end{array}\\
\mathbf{if}\;t\_12 \leq -0.9994999766349792:\\
\;\;\;\;t\_11\\
\mathbf{elif}\;t\_12 \leq 4.999999873689376 \cdot 10^{-5}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;{t\_5}^{2} \geq t\_4:\\
\;\;\;\;t\_10\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \frac{1}{\sqrt{\mathsf{max}\left(t\_6 + e^{2 \cdot \log t\_1}, t\_3\right)}}\\
\end{array}\\
\mathbf{else}:\\
\;\;\;\;t\_11\\
\end{array}
\end{array}
if (if (>=.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 (*.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 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dX.v)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dY.v))) < -0.999499977 or 4.99999987e-5 < (if (>=.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 (*.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 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dX.v)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dY.v))) Initial program 99.3%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3271.1
Applied rewrites71.1%
lift-*.f32N/A
pow2N/A
lift-pow.f3271.1
Applied rewrites71.1%
lift-*.f32N/A
pow2N/A
lift-pow.f32N/A
Applied rewrites71.1%
Taylor expanded in dX.u around 0
unpow2N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3299.3
Applied rewrites99.3%
if -0.999499977 < (if (>=.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 (*.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 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dX.v)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dY.v))) < 4.99999987e-5Initial program 65.6%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3265.6
Applied rewrites65.6%
lift-*.f32N/A
pow2N/A
lift-pow.f3265.6
Applied rewrites65.6%
lift-*.f32N/A
pow2N/A
lift-pow.f32N/A
Applied rewrites65.6%
lift-*.f32N/A
pow2N/A
pow-to-expN/A
lift-log.f32N/A
*-commutativeN/A
lift-*.f32N/A
lift-exp.f3266.2
Applied rewrites66.2%
Final simplification79.4%
(FPCore (w h dX.u dX.v dY.u dY.v maxAniso)
:precision binary32
(let* ((t_0 (* (floor w) dY.u))
(t_1 (* (floor h) dX.v))
(t_2 (* (floor h) dY.v))
(t_3 (+ (* t_0 t_0) (* t_2 t_2)))
(t_4 (+ (pow t_0 2.0) (pow t_2 2.0)))
(t_5 (* (floor w) dX.u))
(t_6 (pow t_5 2.0))
(t_7 (+ (* t_5 t_5) (* t_1 t_1)))
(t_8 (/ 1.0 (sqrt (fmax t_7 t_3))))
(t_9 (* t_2 t_8))
(t_10 (* t_1 t_8))
(t_11 (if (>= (* dX.v (* dX.v (pow (floor h) 2.0))) t_4) t_10 t_9))
(t_12 (if (>= t_7 t_3) t_10 t_9)))
(if (<= t_12 -0.5)
t_11
(if (<= t_12 0.019999999552965164)
(if (>= t_6 t_4)
t_10
(*
t_2
(/ -1.0 (/ -1.0 (sqrt (/ 1.0 (fmax (+ t_6 (pow t_1 2.0)) t_4)))))))
t_11))))
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(w) * dY_46_u;
float t_1 = floorf(h) * dX_46_v;
float t_2 = floorf(h) * dY_46_v;
float t_3 = (t_0 * t_0) + (t_2 * t_2);
float t_4 = powf(t_0, 2.0f) + powf(t_2, 2.0f);
float t_5 = floorf(w) * dX_46_u;
float t_6 = powf(t_5, 2.0f);
float t_7 = (t_5 * t_5) + (t_1 * t_1);
float t_8 = 1.0f / sqrtf(fmaxf(t_7, t_3));
float t_9 = t_2 * t_8;
float t_10 = t_1 * t_8;
float tmp;
if ((dX_46_v * (dX_46_v * powf(floorf(h), 2.0f))) >= t_4) {
tmp = t_10;
} else {
tmp = t_9;
}
float t_11 = tmp;
float tmp_1;
if (t_7 >= t_3) {
tmp_1 = t_10;
} else {
tmp_1 = t_9;
}
float t_12 = tmp_1;
float tmp_2;
if (t_12 <= -0.5f) {
tmp_2 = t_11;
} else if (t_12 <= 0.019999999552965164f) {
float tmp_3;
if (t_6 >= t_4) {
tmp_3 = t_10;
} else {
tmp_3 = t_2 * (-1.0f / (-1.0f / sqrtf((1.0f / fmaxf((t_6 + powf(t_1, 2.0f)), t_4)))));
}
tmp_2 = tmp_3;
} else {
tmp_2 = t_11;
}
return tmp_2;
}
function code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = Float32(floor(w) * dY_46_u) t_1 = Float32(floor(h) * dX_46_v) t_2 = Float32(floor(h) * dY_46_v) t_3 = Float32(Float32(t_0 * t_0) + Float32(t_2 * t_2)) t_4 = Float32((t_0 ^ Float32(2.0)) + (t_2 ^ Float32(2.0))) t_5 = Float32(floor(w) * dX_46_u) t_6 = t_5 ^ Float32(2.0) t_7 = Float32(Float32(t_5 * t_5) + Float32(t_1 * t_1)) t_8 = Float32(Float32(1.0) / sqrt(((t_7 != t_7) ? t_3 : ((t_3 != t_3) ? t_7 : max(t_7, t_3))))) t_9 = Float32(t_2 * t_8) t_10 = Float32(t_1 * t_8) tmp = Float32(0.0) if (Float32(dX_46_v * Float32(dX_46_v * (floor(h) ^ Float32(2.0)))) >= t_4) tmp = t_10; else tmp = t_9; end t_11 = tmp tmp_1 = Float32(0.0) if (t_7 >= t_3) tmp_1 = t_10; else tmp_1 = t_9; end t_12 = tmp_1 tmp_2 = Float32(0.0) if (t_12 <= Float32(-0.5)) tmp_2 = t_11; elseif (t_12 <= Float32(0.019999999552965164)) tmp_3 = Float32(0.0) if (t_6 >= t_4) tmp_3 = t_10; else tmp_3 = Float32(t_2 * Float32(Float32(-1.0) / Float32(Float32(-1.0) / sqrt(Float32(Float32(1.0) / ((Float32(t_6 + (t_1 ^ Float32(2.0))) != Float32(t_6 + (t_1 ^ Float32(2.0)))) ? t_4 : ((t_4 != t_4) ? Float32(t_6 + (t_1 ^ Float32(2.0))) : max(Float32(t_6 + (t_1 ^ Float32(2.0))), t_4)))))))); end tmp_2 = tmp_3; else tmp_2 = t_11; end return tmp_2 end
function tmp_5 = code(w, h, dX_46_u, dX_46_v, dY_46_u, dY_46_v, maxAniso) t_0 = floor(w) * dY_46_u; t_1 = floor(h) * dX_46_v; t_2 = floor(h) * dY_46_v; t_3 = (t_0 * t_0) + (t_2 * t_2); t_4 = (t_0 ^ single(2.0)) + (t_2 ^ single(2.0)); t_5 = floor(w) * dX_46_u; t_6 = t_5 ^ single(2.0); t_7 = (t_5 * t_5) + (t_1 * t_1); t_8 = single(1.0) / sqrt(max(t_7, t_3)); t_9 = t_2 * t_8; t_10 = t_1 * t_8; tmp = single(0.0); if ((dX_46_v * (dX_46_v * (floor(h) ^ single(2.0)))) >= t_4) tmp = t_10; else tmp = t_9; end t_11 = tmp; tmp_2 = single(0.0); if (t_7 >= t_3) tmp_2 = t_10; else tmp_2 = t_9; end t_12 = tmp_2; tmp_3 = single(0.0); if (t_12 <= single(-0.5)) tmp_3 = t_11; elseif (t_12 <= single(0.019999999552965164)) tmp_4 = single(0.0); if (t_6 >= t_4) tmp_4 = t_10; else tmp_4 = t_2 * (single(-1.0) / (single(-1.0) / sqrt((single(1.0) / max((t_6 + (t_1 ^ single(2.0))), t_4))))); end tmp_3 = tmp_4; else tmp_3 = t_11; end tmp_5 = tmp_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 dX.v\\
t_2 := \left\lfloor h\right\rfloor \cdot dY.v\\
t_3 := t\_0 \cdot t\_0 + t\_2 \cdot t\_2\\
t_4 := {t\_0}^{2} + {t\_2}^{2}\\
t_5 := \left\lfloor w\right\rfloor \cdot dX.u\\
t_6 := {t\_5}^{2}\\
t_7 := t\_5 \cdot t\_5 + t\_1 \cdot t\_1\\
t_8 := \frac{1}{\sqrt{\mathsf{max}\left(t\_7, t\_3\right)}}\\
t_9 := t\_2 \cdot t\_8\\
t_10 := t\_1 \cdot t\_8\\
t_11 := \begin{array}{l}
\mathbf{if}\;dX.v \cdot \left(dX.v \cdot {\left(\left\lfloor h\right\rfloor \right)}^{2}\right) \geq t\_4:\\
\;\;\;\;t\_10\\
\mathbf{else}:\\
\;\;\;\;t\_9\\
\end{array}\\
t_12 := \begin{array}{l}
\mathbf{if}\;t\_7 \geq t\_3:\\
\;\;\;\;t\_10\\
\mathbf{else}:\\
\;\;\;\;t\_9\\
\end{array}\\
\mathbf{if}\;t\_12 \leq -0.5:\\
\;\;\;\;t\_11\\
\mathbf{elif}\;t\_12 \leq 0.019999999552965164:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;t\_6 \geq t\_4:\\
\;\;\;\;t\_10\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \frac{-1}{\frac{-1}{\sqrt{\frac{1}{\mathsf{max}\left(t\_6 + {t\_1}^{2}, t\_4\right)}}}}\\
\end{array}\\
\mathbf{else}:\\
\;\;\;\;t\_11\\
\end{array}
\end{array}
if (if (>=.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 (*.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 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dX.v)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dY.v))) < -0.5 or 0.0199999996 < (if (>=.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 (*.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 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dX.v)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dY.v))) Initial program 99.3%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3270.9
Applied rewrites70.9%
lift-*.f32N/A
pow2N/A
lift-pow.f3270.9
Applied rewrites70.9%
lift-*.f32N/A
pow2N/A
lift-pow.f32N/A
Applied rewrites70.9%
Taylor expanded in dX.u around 0
unpow2N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3299.3
Applied rewrites99.3%
if -0.5 < (if (>=.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 (*.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 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dX.v)) (*.f32 (/.f32 #s(literal 1 binary32) (sqrt.f32 (fmax.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 (*.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 (floor.f32 h) dY.v))) < 0.0199999996Initial program 62.3%
Taylor expanded in dX.u around inf
unpow2N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f32N/A
*-commutativeN/A
lower-*.f32N/A
lower-pow.f32N/A
lower-floor.f3262.3
Applied rewrites62.3%
lift-*.f32N/A
pow2N/A
lift-pow.f3262.3
Applied rewrites62.3%
lift-*.f32N/A
pow2N/A
lift-pow.f32N/A
Applied rewrites62.3%
Applied rewrites62.3%
Final simplification76.6%
herbie shell --seed 2024230
(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))))