
(FPCore (x y z) :precision binary64 (+ (+ x y) z))
double code(double x, double y, double z) {
return (x + y) + 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) + z
end function
public static double code(double x, double y, double z) {
return (x + y) + z;
}
def code(x, y, z): return (x + y) + z
function code(x, y, z) return Float64(Float64(x + y) + z) end
function tmp = code(x, y, z) tmp = (x + y) + z; end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) + z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (+ x y) z))
double code(double x, double y, double z) {
return (x + y) + 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) + z
end function
public static double code(double x, double y, double z) {
return (x + y) + z;
}
def code(x, y, z): return (x + y) + z
function code(x, y, z) return Float64(Float64(x + y) + z) end
function tmp = code(x, y, z) tmp = (x + y) + z; end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) + z
\end{array}
(FPCore (x y z) :precision binary64 (+ z (+ x y)))
double code(double x, double y, double z) {
return 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 = z + (x + y)
end function
public static double code(double x, double y, double z) {
return z + (x + y);
}
def code(x, y, z): return z + (x + y)
function code(x, y, z) return Float64(z + Float64(x + y)) end
function tmp = code(x, y, z) tmp = z + (x + y); end
code[x_, y_, z_] := N[(z + N[(x + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z + \left(x + y\right)
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (<= x -7e+49) (+ x y) (+ y z)))
double code(double x, double y, double z) {
double tmp;
if (x <= -7e+49) {
tmp = x + y;
} else {
tmp = y + 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 <= (-7d+49)) then
tmp = x + y
else
tmp = y + z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -7e+49) {
tmp = x + y;
} else {
tmp = y + z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -7e+49: tmp = x + y else: tmp = y + z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -7e+49) tmp = Float64(x + y); else tmp = Float64(y + z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -7e+49) tmp = x + y; else tmp = y + z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -7e+49], N[(x + y), $MachinePrecision], N[(y + z), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -7 \cdot 10^{+49}:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;y + z\\
\end{array}
\end{array}
if x < -6.9999999999999995e49Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6484.3%
Simplified84.3%
if -6.9999999999999995e49 < x Initial program 100.0%
Taylor expanded in x around 0
+-lowering-+.f6475.6%
Simplified75.6%
Final simplification77.1%
(FPCore (x y z) :precision binary64 (if (<= x -8.6e+48) (+ x y) z))
double code(double x, double y, double z) {
double tmp;
if (x <= -8.6e+48) {
tmp = x + y;
} else {
tmp = 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 <= (-8.6d+48)) then
tmp = x + y
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -8.6e+48) {
tmp = x + y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -8.6e+48: tmp = x + y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -8.6e+48) tmp = Float64(x + y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -8.6e+48) tmp = x + y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -8.6e+48], N[(x + y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -8.6 \cdot 10^{+48}:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -8.59999999999999957e48Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6484.3%
Simplified84.3%
if -8.59999999999999957e48 < x Initial program 100.0%
Taylor expanded in z around inf
Simplified37.3%
Final simplification45.2%
(FPCore (x y z) :precision binary64 (if (<= x -4.25e+49) x z))
double code(double x, double y, double z) {
double tmp;
if (x <= -4.25e+49) {
tmp = x;
} else {
tmp = 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 <= (-4.25d+49)) then
tmp = x
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -4.25e+49) {
tmp = x;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -4.25e+49: tmp = x else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -4.25e+49) tmp = x; else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -4.25e+49) tmp = x; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -4.25e+49], x, z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.25 \cdot 10^{+49}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -4.2499999999999998e49Initial program 100.0%
Taylor expanded in x around inf
Simplified70.8%
if -4.2499999999999998e49 < x Initial program 100.0%
Taylor expanded in z around inf
Simplified37.3%
(FPCore (x y z) :precision binary64 (+ x z))
double code(double x, double y, double z) {
return x + 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 + z
end function
public static double code(double x, double y, double z) {
return x + z;
}
def code(x, y, z): return x + z
function code(x, y, z) return Float64(x + z) end
function tmp = code(x, y, z) tmp = x + z; end
code[x_, y_, z_] := N[(x + z), $MachinePrecision]
\begin{array}{l}
\\
x + z
\end{array}
Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
+-lowering-+.f6465.6%
Simplified65.6%
Final simplification65.6%
(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
Simplified33.7%
herbie shell --seed 2024158
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, I"
:precision binary64
(+ (+ x y) z))