
(FPCore (x y z) :precision binary64 (+ (+ (+ (+ (+ x y) y) x) z) x))
double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((((x + y) + y) + x) + z) + x
end function
public static double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
def code(x, y, z): return ((((x + y) + y) + x) + z) + x
function code(x, y, z) return Float64(Float64(Float64(Float64(Float64(x + y) + y) + x) + z) + x) end
function tmp = code(x, y, z) tmp = ((((x + y) + y) + x) + z) + x; end
code[x_, y_, z_] := N[(N[(N[(N[(N[(x + y), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision] + z), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 5 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (+ (+ (+ (+ x y) y) x) z) x))
double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((((x + y) + y) + x) + z) + x
end function
public static double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
def code(x, y, z): return ((((x + y) + y) + x) + z) + x
function code(x, y, z) return Float64(Float64(Float64(Float64(Float64(x + y) + y) + x) + z) + x) end
function tmp = code(x, y, z) tmp = ((((x + y) + y) + x) + z) + x; end
code[x_, y_, z_] := N[(N[(N[(N[(N[(x + y), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision] + z), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\end{array}
(FPCore (x y z) :precision binary64 (+ (+ z (+ (+ (+ y x) y) x)) x))
double code(double x, double y, double z) {
return (z + (((y + x) + y) + x)) + x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (z + (((y + x) + y) + x)) + x
end function
public static double code(double x, double y, double z) {
return (z + (((y + x) + y) + x)) + x;
}
def code(x, y, z): return (z + (((y + x) + y) + x)) + x
function code(x, y, z) return Float64(Float64(z + Float64(Float64(Float64(y + x) + y) + x)) + x) end
function tmp = code(x, y, z) tmp = (z + (((y + x) + y) + x)) + x; end
code[x_, y_, z_] := N[(N[(z + N[(N[(N[(y + x), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(z + \left(\left(\left(y + x\right) + y\right) + x\right)\right) + x
\end{array}
Initial program 99.9%
Final simplification99.9%
(FPCore (x y z) :precision binary64 (if (<= x -4.4e+82) (fma 3.0 x z) (if (<= x 7e-55) (fma y 2.0 z) (fma 3.0 x z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -4.4e+82) {
tmp = fma(3.0, x, z);
} else if (x <= 7e-55) {
tmp = fma(y, 2.0, z);
} else {
tmp = fma(3.0, x, z);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (x <= -4.4e+82) tmp = fma(3.0, x, z); elseif (x <= 7e-55) tmp = fma(y, 2.0, z); else tmp = fma(3.0, x, z); end return tmp end
code[x_, y_, z_] := If[LessEqual[x, -4.4e+82], N[(3.0 * x + z), $MachinePrecision], If[LessEqual[x, 7e-55], N[(y * 2.0 + z), $MachinePrecision], N[(3.0 * x + z), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.4 \cdot 10^{+82}:\\
\;\;\;\;\mathsf{fma}\left(3, x, z\right)\\
\mathbf{elif}\;x \leq 7 \cdot 10^{-55}:\\
\;\;\;\;\mathsf{fma}\left(y, 2, z\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(3, x, z\right)\\
\end{array}
\end{array}
if x < -4.4000000000000002e82 or 7.00000000000000051e-55 < x Initial program 99.8%
Taylor expanded in y around 0
+-commutativeN/A
associate-+r+N/A
distribute-rgt1-inN/A
metadata-evalN/A
lower-fma.f6485.6
Applied rewrites85.6%
if -4.4000000000000002e82 < x < 7.00000000000000051e-55Initial program 99.9%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f6495.3
Applied rewrites95.3%
(FPCore (x y z) :precision binary64 (if (<= y -9e+82) (+ y y) (if (<= y 2.55e+149) (fma 3.0 x z) (+ y y))))
double code(double x, double y, double z) {
double tmp;
if (y <= -9e+82) {
tmp = y + y;
} else if (y <= 2.55e+149) {
tmp = fma(3.0, x, z);
} else {
tmp = y + y;
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (y <= -9e+82) tmp = Float64(y + y); elseif (y <= 2.55e+149) tmp = fma(3.0, x, z); else tmp = Float64(y + y); end return tmp end
code[x_, y_, z_] := If[LessEqual[y, -9e+82], N[(y + y), $MachinePrecision], If[LessEqual[y, 2.55e+149], N[(3.0 * x + z), $MachinePrecision], N[(y + y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -9 \cdot 10^{+82}:\\
\;\;\;\;y + y\\
\mathbf{elif}\;y \leq 2.55 \cdot 10^{+149}:\\
\;\;\;\;\mathsf{fma}\left(3, x, z\right)\\
\mathbf{else}:\\
\;\;\;\;y + y\\
\end{array}
\end{array}
if y < -8.9999999999999993e82 or 2.5499999999999999e149 < y Initial program 99.9%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f6470.0
Applied rewrites70.0%
Applied rewrites70.0%
if -8.9999999999999993e82 < y < 2.5499999999999999e149Initial program 99.9%
Taylor expanded in y around 0
+-commutativeN/A
associate-+r+N/A
distribute-rgt1-inN/A
metadata-evalN/A
lower-fma.f6484.9
Applied rewrites84.9%
(FPCore (x y z) :precision binary64 (if (<= x -1.95e+45) (* 3.0 x) (if (<= x 7e-55) (+ y y) (* 3.0 x))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.95e+45) {
tmp = 3.0 * x;
} else if (x <= 7e-55) {
tmp = y + y;
} else {
tmp = 3.0 * x;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (x <= (-1.95d+45)) then
tmp = 3.0d0 * x
else if (x <= 7d-55) then
tmp = y + y
else
tmp = 3.0d0 * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1.95e+45) {
tmp = 3.0 * x;
} else if (x <= 7e-55) {
tmp = y + y;
} else {
tmp = 3.0 * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.95e+45: tmp = 3.0 * x elif x <= 7e-55: tmp = y + y else: tmp = 3.0 * x return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.95e+45) tmp = Float64(3.0 * x); elseif (x <= 7e-55) tmp = Float64(y + y); else tmp = Float64(3.0 * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.95e+45) tmp = 3.0 * x; elseif (x <= 7e-55) tmp = y + y; else tmp = 3.0 * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.95e+45], N[(3.0 * x), $MachinePrecision], If[LessEqual[x, 7e-55], N[(y + y), $MachinePrecision], N[(3.0 * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.95 \cdot 10^{+45}:\\
\;\;\;\;3 \cdot x\\
\mathbf{elif}\;x \leq 7 \cdot 10^{-55}:\\
\;\;\;\;y + y\\
\mathbf{else}:\\
\;\;\;\;3 \cdot x\\
\end{array}
\end{array}
if x < -1.95e45 or 7.00000000000000051e-55 < x Initial program 99.8%
Taylor expanded in x around inf
lower-*.f6458.7
Applied rewrites58.7%
if -1.95e45 < x < 7.00000000000000051e-55Initial program 99.9%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f6451.2
Applied rewrites51.2%
Applied rewrites51.2%
(FPCore (x y z) :precision binary64 (+ y y))
double code(double x, double y, double z) {
return y + y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y + y
end function
public static double code(double x, double y, double z) {
return y + y;
}
def code(x, y, z): return y + y
function code(x, y, z) return Float64(y + y) end
function tmp = code(x, y, z) tmp = y + y; end
code[x_, y_, z_] := N[(y + y), $MachinePrecision]
\begin{array}{l}
\\
y + y
\end{array}
Initial program 99.9%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f6433.9
Applied rewrites33.9%
Applied rewrites33.9%
herbie shell --seed 2024267
(FPCore (x y z)
:name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendInside from plot-0.2.3.4"
:precision binary64
(+ (+ (+ (+ (+ x y) y) x) z) x))