
(FPCore (x y z) :precision binary64 (* (+ x y) (+ z 1.0)))
double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
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 + 1.0d0)
end function
public static double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
def code(x, y, z): return (x + y) * (z + 1.0)
function code(x, y, z) return Float64(Float64(x + y) * Float64(z + 1.0)) end
function tmp = code(x, y, z) tmp = (x + y) * (z + 1.0); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(z + 1\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (* (+ x y) (+ z 1.0)))
double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
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 + 1.0d0)
end function
public static double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
def code(x, y, z): return (x + y) * (z + 1.0)
function code(x, y, z) return Float64(Float64(x + y) * Float64(z + 1.0)) end
function tmp = code(x, y, z) tmp = (x + y) * (z + 1.0); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(z + 1\right)
\end{array}
(FPCore (x y z) :precision binary64 (+ x (fma (+ x y) z y)))
double code(double x, double y, double z) {
return x + fma((x + y), z, y);
}
function code(x, y, z) return Float64(x + fma(Float64(x + y), z, y)) end
code[x_, y_, z_] := N[(x + N[(N[(x + y), $MachinePrecision] * z + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \mathsf{fma}\left(x + y, z, y\right)
\end{array}
Initial program 100.0%
lift-+.f64N/A
distribute-rgt-inN/A
*-lft-identityN/A
lift-+.f64N/A
+-commutativeN/A
associate-+r+N/A
lower-+.f64N/A
*-commutativeN/A
lower-fma.f64100.0
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (<= (+ z 1.0) -1000000.0) (* x z) (if (<= (+ z 1.0) 2e+35) (+ x y) (* x z))))
double code(double x, double y, double z) {
double tmp;
if ((z + 1.0) <= -1000000.0) {
tmp = x * z;
} else if ((z + 1.0) <= 2e+35) {
tmp = x + y;
} else {
tmp = x * 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 ((z + 1.0d0) <= (-1000000.0d0)) then
tmp = x * z
else if ((z + 1.0d0) <= 2d+35) then
tmp = x + y
else
tmp = x * z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z + 1.0) <= -1000000.0) {
tmp = x * z;
} else if ((z + 1.0) <= 2e+35) {
tmp = x + y;
} else {
tmp = x * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z + 1.0) <= -1000000.0: tmp = x * z elif (z + 1.0) <= 2e+35: tmp = x + y else: tmp = x * z return tmp
function code(x, y, z) tmp = 0.0 if (Float64(z + 1.0) <= -1000000.0) tmp = Float64(x * z); elseif (Float64(z + 1.0) <= 2e+35) tmp = Float64(x + y); else tmp = Float64(x * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z + 1.0) <= -1000000.0) tmp = x * z; elseif ((z + 1.0) <= 2e+35) tmp = x + y; else tmp = x * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -1000000.0], N[(x * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 2e+35], N[(x + y), $MachinePrecision], N[(x * z), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -1000000:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;z + 1 \leq 2 \cdot 10^{+35}:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x \cdot z\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -1e6 or 1.9999999999999999e35 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in x around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6451.2
Simplified51.2%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f6450.7
Simplified50.7%
if -1e6 < (+.f64 z #s(literal 1 binary64)) < 1.9999999999999999e35Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6496.4
Simplified96.4%
Final simplification78.7%
(FPCore (x y z) :precision binary64 (if (<= (+ z 1.0) -1000000.0) (* y z) (if (<= (+ z 1.0) 2.0) (+ x y) (* y z))))
double code(double x, double y, double z) {
double tmp;
if ((z + 1.0) <= -1000000.0) {
tmp = y * z;
} else if ((z + 1.0) <= 2.0) {
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 ((z + 1.0d0) <= (-1000000.0d0)) then
tmp = y * z
else if ((z + 1.0d0) <= 2.0d0) 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 ((z + 1.0) <= -1000000.0) {
tmp = y * z;
} else if ((z + 1.0) <= 2.0) {
tmp = x + y;
} else {
tmp = y * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z + 1.0) <= -1000000.0: tmp = y * z elif (z + 1.0) <= 2.0: tmp = x + y else: tmp = y * z return tmp
function code(x, y, z) tmp = 0.0 if (Float64(z + 1.0) <= -1000000.0) tmp = Float64(y * z); elseif (Float64(z + 1.0) <= 2.0) tmp = Float64(x + y); else tmp = Float64(y * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z + 1.0) <= -1000000.0) tmp = y * z; elseif ((z + 1.0) <= 2.0) tmp = x + y; else tmp = y * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -1000000.0], N[(y * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 2.0], N[(x + y), $MachinePrecision], N[(y * z), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -1000000:\\
\;\;\;\;y \cdot z\\
\mathbf{elif}\;z + 1 \leq 2:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;y \cdot z\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -1e6 or 2 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
distribute-lft-inN/A
*-rgt-identityN/A
lower-fma.f6458.6
Simplified58.6%
Taylor expanded in z around inf
lower-*.f6457.7
Simplified57.7%
if -1e6 < (+.f64 z #s(literal 1 binary64)) < 2Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6497.5
Simplified97.5%
Final simplification81.8%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -2e-279) (fma z x x) (+ x (fma y z y))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -2e-279) {
tmp = fma(z, x, x);
} else {
tmp = x + fma(y, z, y);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -2e-279) tmp = fma(z, x, x); else tmp = Float64(x + fma(y, z, y)); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -2e-279], N[(z * x + x), $MachinePrecision], N[(x + N[(y * z + y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -2 \cdot 10^{-279}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{else}:\\
\;\;\;\;x + \mathsf{fma}\left(y, z, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -2.00000000000000011e-279Initial program 100.0%
Taylor expanded in x around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6452.1
Simplified52.1%
if -2.00000000000000011e-279 < (+.f64 x y) Initial program 100.0%
lift-+.f64N/A
distribute-rgt-inN/A
*-lft-identityN/A
lift-+.f64N/A
+-commutativeN/A
associate-+r+N/A
lower-+.f64N/A
*-commutativeN/A
lower-fma.f64100.0
Applied egg-rr100.0%
Taylor expanded in x around 0
+-commutativeN/A
lower-fma.f6485.9
Simplified85.9%
Final simplification68.0%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -2e-279) (fma z x x) (fma y z y)))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -2e-279) {
tmp = fma(z, x, x);
} else {
tmp = fma(y, z, y);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -2e-279) tmp = fma(z, x, x); else tmp = fma(y, z, y); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -2e-279], N[(z * x + x), $MachinePrecision], N[(y * z + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -2 \cdot 10^{-279}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, z, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -2.00000000000000011e-279Initial program 100.0%
Taylor expanded in x around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6452.1
Simplified52.1%
if -2.00000000000000011e-279 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
distribute-lft-inN/A
*-rgt-identityN/A
lower-fma.f6453.7
Simplified53.7%
(FPCore (x y z) :precision binary64 (* (+ x y) (+ z 1.0)))
double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
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 + 1.0d0)
end function
public static double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
def code(x, y, z): return (x + y) * (z + 1.0)
function code(x, y, z) return Float64(Float64(x + y) * Float64(z + 1.0)) end
function tmp = code(x, y, z) tmp = (x + y) * (z + 1.0); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(z + 1\right)
\end{array}
Initial program 100.0%
(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
lower-+.f6460.4
Simplified60.4%
Final simplification60.4%
herbie shell --seed 2024211
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
:precision binary64
(* (+ x y) (+ z 1.0)))