
(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 6 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 (* (+ 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}
Initial program 100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- 1.0 z))))
(if (<= (- 1.0 z) 1.0)
t_0
(if (<= (- 1.0 z) 54000000000000.0) (+ x y) t_0))))
double code(double x, double y, double z) {
double t_0 = y * (1.0 - z);
double tmp;
if ((1.0 - z) <= 1.0) {
tmp = t_0;
} else if ((1.0 - z) <= 54000000000000.0) {
tmp = x + y;
} else {
tmp = t_0;
}
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) :: t_0
real(8) :: tmp
t_0 = y * (1.0d0 - z)
if ((1.0d0 - z) <= 1.0d0) then
tmp = t_0
else if ((1.0d0 - z) <= 54000000000000.0d0) then
tmp = x + y
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = y * (1.0 - z);
double tmp;
if ((1.0 - z) <= 1.0) {
tmp = t_0;
} else if ((1.0 - z) <= 54000000000000.0) {
tmp = x + y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * (1.0 - z) tmp = 0 if (1.0 - z) <= 1.0: tmp = t_0 elif (1.0 - z) <= 54000000000000.0: tmp = x + y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(1.0 - z)) tmp = 0.0 if (Float64(1.0 - z) <= 1.0) tmp = t_0; elseif (Float64(1.0 - z) <= 54000000000000.0) tmp = Float64(x + y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * (1.0 - z); tmp = 0.0; if ((1.0 - z) <= 1.0) tmp = t_0; elseif ((1.0 - z) <= 54000000000000.0) tmp = x + y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(1.0 - z), $MachinePrecision], 1.0], t$95$0, If[LessEqual[N[(1.0 - z), $MachinePrecision], 54000000000000.0], N[(x + y), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(1 - z\right)\\
\mathbf{if}\;1 - z \leq 1:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;1 - z \leq 54000000000000:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < 1 or 5.4e13 < (-.f64 #s(literal 1 binary64) z) Initial program 100.0%
Taylor expanded in x around 0
*-lowering-*.f64N/A
--lowering--.f6455.8%
Simplified55.8%
if 1 < (-.f64 #s(literal 1 binary64) z) < 5.4e13Initial program 99.6%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6417.5%
Simplified17.5%
Final simplification55.2%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -1e-245) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -1e-245) {
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) <= (-1d-245)) 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) <= -1e-245) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -1e-245: 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) <= -1e-245) 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) <= -1e-245) 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], -1e-245], 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 -1 \cdot 10^{-245}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -9.9999999999999993e-246Initial program 100.0%
Taylor expanded in x around inf
*-commutativeN/A
*-lowering-*.f64N/A
--lowering--.f6446.1%
Simplified46.1%
if -9.9999999999999993e-246 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0
*-lowering-*.f64N/A
--lowering--.f6450.2%
Simplified50.2%
Final simplification47.8%
(FPCore (x y z) :precision binary64 (if (<= x -2.2e-74) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -2.2e-74) {
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 <= (-2.2d-74)) 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 <= -2.2e-74) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -2.2e-74: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -2.2e-74) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -2.2e-74) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -2.2e-74], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.2 \cdot 10^{-74}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -2.2000000000000001e-74Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6444.2%
Simplified44.2%
Taylor expanded in y around 0
Simplified31.5%
if -2.2000000000000001e-74 < x Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6446.3%
Simplified46.3%
Taylor expanded in y around inf
Simplified31.1%
(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
+-commutativeN/A
+-lowering-+.f6445.7%
Simplified45.7%
Final simplification45.7%
(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 z around 0
+-commutativeN/A
+-lowering-+.f6445.7%
Simplified45.7%
Taylor expanded in y around 0
Simplified21.4%
herbie shell --seed 2024161
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))