
(FPCore (x y z) :precision binary64 (* (+ x y) (- 1.0 z)))
double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
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) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
def code(x, y, z): return (x + y) * (1.0 - z)
function code(x, y, z) return Float64(Float64(x + y) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (x + y) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (* (+ x y) (- 1.0 z)))
double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
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) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
def code(x, y, z): return (x + y) * (1.0 - z)
function code(x, y, z) return Float64(Float64(x + y) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (x + y) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}
(FPCore (x y z) :precision binary64 (* (- 1.0 z) (+ x y)))
double code(double x, double y, double z) {
return (1.0 - z) * (x + y);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (1.0d0 - z) * (x + y)
end function
public static double code(double x, double y, double z) {
return (1.0 - z) * (x + y);
}
def code(x, y, z): return (1.0 - z) * (x + y)
function code(x, y, z) return Float64(Float64(1.0 - z) * Float64(x + y)) end
function tmp = code(x, y, z) tmp = (1.0 - z) * (x + y); end
code[x_, y_, z_] := N[(N[(1.0 - z), $MachinePrecision] * N[(x + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - z\right) \cdot \left(x + y\right)
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (or (<= z -20.0) (not (<= z 1.0))) (* x (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -20.0) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = x + y;
}
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 ((z <= (-20.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = x * -z
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -20.0) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -20.0) or not (z <= 1.0): tmp = x * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -20.0) || !(z <= 1.0)) tmp = Float64(x * Float64(-z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -20.0) || ~((z <= 1.0))) tmp = x * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -20.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(x * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -20 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -20 or 1 < z Initial program 100.0%
Taylor expanded in x around inf 56.1%
*-commutative56.1%
Simplified56.1%
Taylor expanded in z around inf 56.1%
neg-mul-156.1%
Simplified56.1%
if -20 < z < 1Initial program 100.0%
Taylor expanded in z around 0 99.7%
+-commutative99.7%
Simplified99.7%
Final simplification76.0%
(FPCore (x y z) :precision binary64 (if (or (<= z -1.9e+15) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.9e+15) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
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 ((z <= (-1.9d+15)) .or. (.not. (z <= 1.0d0))) then
tmp = y * -z
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -1.9e+15) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.9e+15) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.9e+15) || !(z <= 1.0)) tmp = Float64(y * Float64(-z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -1.9e+15) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.9e+15], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(y * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.9 \cdot 10^{+15} \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -1.9e15 or 1 < z Initial program 100.0%
Taylor expanded in x around 0 49.0%
Taylor expanded in z around inf 48.1%
associate-*r*48.1%
mul-1-neg48.1%
Simplified48.1%
if -1.9e15 < z < 1Initial program 100.0%
Taylor expanded in z around 0 98.2%
+-commutative98.2%
Simplified98.2%
Final simplification71.4%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -4e-228) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -4e-228) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
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 + y) <= (-4d-228)) then
tmp = x * (1.0d0 - z)
else
tmp = y * (1.0d0 - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -4e-228) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -4e-228: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -4e-228) tmp = Float64(x * Float64(1.0 - z)); else tmp = Float64(y * Float64(1.0 - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x + y) <= -4e-228) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -4e-228], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -4 \cdot 10^{-228}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -4.00000000000000013e-228Initial program 100.0%
Taylor expanded in x around inf 47.2%
*-commutative47.2%
Simplified47.2%
if -4.00000000000000013e-228 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0 43.4%
Final simplification45.4%
(FPCore (x y z) :precision binary64 (if (<= x -3.1e-39) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -3.1e-39) {
tmp = x;
} else {
tmp = y;
}
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 <= (-3.1d-39)) then
tmp = x
else
tmp = y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -3.1e-39) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -3.1e-39: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -3.1e-39) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -3.1e-39) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -3.1e-39], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3.1 \cdot 10^{-39}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -3.0999999999999997e-39Initial program 100.0%
Taylor expanded in x around inf 74.1%
*-commutative74.1%
Simplified74.1%
Taylor expanded in z around 0 34.1%
if -3.0999999999999997e-39 < x Initial program 100.0%
Taylor expanded in x around 0 58.3%
Taylor expanded in z around 0 27.3%
(FPCore (x y z) :precision binary64 (+ x y))
double code(double x, double y, double z) {
return x + y;
}
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
end function
public static double code(double x, double y, double z) {
return x + y;
}
def code(x, y, z): return x + y
function code(x, y, z) return Float64(x + y) end
function tmp = code(x, y, z) tmp = x + y; end
code[x_, y_, z_] := N[(x + y), $MachinePrecision]
\begin{array}{l}
\\
x + y
\end{array}
Initial program 100.0%
Taylor expanded in z around 0 47.5%
+-commutative47.5%
Simplified47.5%
Final simplification47.5%
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
return 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
end function
public static double code(double x, double y, double z) {
return x;
}
def code(x, y, z): return x
function code(x, y, z) return x end
function tmp = code(x, y, z) tmp = x; end
code[x_, y_, z_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 100.0%
Taylor expanded in x around inf 52.7%
*-commutative52.7%
Simplified52.7%
Taylor expanded in z around 0 23.8%
herbie shell --seed 2024169
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))