
(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 8 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 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
(if (<= (+ x y) -1e+219)
(* x z)
(if (<= (+ x y) -5e+155)
(+ x y)
(if (<= (+ x y) -2e-257) (* x z) (fma y z y)))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -1e+219) {
tmp = x * z;
} else if ((x + y) <= -5e+155) {
tmp = x + y;
} else if ((x + y) <= -2e-257) {
tmp = x * z;
} else {
tmp = fma(y, z, y);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -1e+219) tmp = Float64(x * z); elseif (Float64(x + y) <= -5e+155) tmp = Float64(x + y); elseif (Float64(x + y) <= -2e-257) tmp = Float64(x * z); else tmp = fma(y, z, y); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -1e+219], N[(x * z), $MachinePrecision], If[LessEqual[N[(x + y), $MachinePrecision], -5e+155], N[(x + y), $MachinePrecision], If[LessEqual[N[(x + y), $MachinePrecision], -2e-257], N[(x * z), $MachinePrecision], N[(y * z + y), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -1 \cdot 10^{+219}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;x + y \leq -5 \cdot 10^{+155}:\\
\;\;\;\;x + y\\
\mathbf{elif}\;x + y \leq -2 \cdot 10^{-257}:\\
\;\;\;\;x \cdot z\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, z, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -9.99999999999999965e218 or -4.9999999999999999e155 < (+.f64 x y) < -2e-257Initial program 100.0%
Taylor expanded in z around inf
Simplified61.1%
Taylor expanded in x around inf
Simplified31.1%
if -9.99999999999999965e218 < (+.f64 x y) < -4.9999999999999999e155Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6477.7
Simplified77.7%
if -2e-257 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
distribute-lft-inN/A
*-rgt-identityN/A
accelerator-lowering-fma.f6447.2
Simplified47.2%
Final simplification43.7%
(FPCore (x y z)
:precision binary64
(if (<= (+ z 1.0) -1e+201)
(* y z)
(if (<= (+ z 1.0) -400.0)
(* x z)
(if (<= (+ z 1.0) 50000000.0) (+ x y) (* x z)))))
double code(double x, double y, double z) {
double tmp;
if ((z + 1.0) <= -1e+201) {
tmp = y * z;
} else if ((z + 1.0) <= -400.0) {
tmp = x * z;
} else if ((z + 1.0) <= 50000000.0) {
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) <= (-1d+201)) then
tmp = y * z
else if ((z + 1.0d0) <= (-400.0d0)) then
tmp = x * z
else if ((z + 1.0d0) <= 50000000.0d0) 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) <= -1e+201) {
tmp = y * z;
} else if ((z + 1.0) <= -400.0) {
tmp = x * z;
} else if ((z + 1.0) <= 50000000.0) {
tmp = x + y;
} else {
tmp = x * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z + 1.0) <= -1e+201: tmp = y * z elif (z + 1.0) <= -400.0: tmp = x * z elif (z + 1.0) <= 50000000.0: tmp = x + y else: tmp = x * z return tmp
function code(x, y, z) tmp = 0.0 if (Float64(z + 1.0) <= -1e+201) tmp = Float64(y * z); elseif (Float64(z + 1.0) <= -400.0) tmp = Float64(x * z); elseif (Float64(z + 1.0) <= 50000000.0) 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) <= -1e+201) tmp = y * z; elseif ((z + 1.0) <= -400.0) tmp = x * z; elseif ((z + 1.0) <= 50000000.0) tmp = x + y; else tmp = x * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -1e+201], N[(y * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], -400.0], N[(x * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 50000000.0], N[(x + y), $MachinePrecision], N[(x * z), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -1 \cdot 10^{+201}:\\
\;\;\;\;y \cdot z\\
\mathbf{elif}\;z + 1 \leq -400:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;z + 1 \leq 50000000:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x \cdot z\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -1.00000000000000004e201Initial program 100.0%
Taylor expanded in z around inf
Simplified100.0%
Taylor expanded in x around 0
Simplified57.0%
if -1.00000000000000004e201 < (+.f64 z #s(literal 1 binary64)) < -400 or 5e7 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in z around inf
Simplified97.7%
Taylor expanded in x around inf
Simplified50.9%
if -400 < (+.f64 z #s(literal 1 binary64)) < 5e7Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6495.6
Simplified95.6%
Final simplification75.6%
(FPCore (x y z) :precision binary64 (if (<= (+ z 1.0) -400.0) (* x z) (if (<= (+ z 1.0) 50000000.0) (+ x y) (* x z))))
double code(double x, double y, double z) {
double tmp;
if ((z + 1.0) <= -400.0) {
tmp = x * z;
} else if ((z + 1.0) <= 50000000.0) {
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) <= (-400.0d0)) then
tmp = x * z
else if ((z + 1.0d0) <= 50000000.0d0) 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) <= -400.0) {
tmp = x * z;
} else if ((z + 1.0) <= 50000000.0) {
tmp = x + y;
} else {
tmp = x * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z + 1.0) <= -400.0: tmp = x * z elif (z + 1.0) <= 50000000.0: tmp = x + y else: tmp = x * z return tmp
function code(x, y, z) tmp = 0.0 if (Float64(z + 1.0) <= -400.0) tmp = Float64(x * z); elseif (Float64(z + 1.0) <= 50000000.0) 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) <= -400.0) tmp = x * z; elseif ((z + 1.0) <= 50000000.0) tmp = x + y; else tmp = x * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -400.0], N[(x * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 50000000.0], N[(x + y), $MachinePrecision], N[(x * z), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -400:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;z + 1 \leq 50000000:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x \cdot z\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -400 or 5e7 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in z around inf
Simplified98.2%
Taylor expanded in x around inf
Simplified50.5%
if -400 < (+.f64 z #s(literal 1 binary64)) < 5e7Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6495.6
Simplified95.6%
Final simplification74.8%
(FPCore (x y z) :precision binary64 (if (<= (* (+ x y) (+ z 1.0)) -1e-209) x y))
double code(double x, double y, double z) {
double tmp;
if (((x + y) * (z + 1.0)) <= -1e-209) {
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 + y) * (z + 1.0d0)) <= (-1d-209)) 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 + y) * (z + 1.0)) <= -1e-209) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((x + y) * (z + 1.0)) <= -1e-209: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (Float64(Float64(x + y) * Float64(z + 1.0)) <= -1e-209) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((x + y) * (z + 1.0)) <= -1e-209) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision], -1e-209], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\left(x + y\right) \cdot \left(z + 1\right) \leq -1 \cdot 10^{-209}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if (*.f64 (+.f64 x y) (+.f64 z #s(literal 1 binary64))) < -1e-209Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6449.1
Simplified49.1%
Taylor expanded in y around 0
Simplified23.4%
if -1e-209 < (*.f64 (+.f64 x y) (+.f64 z #s(literal 1 binary64))) Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
+-lowering-+.f6456.2
Simplified56.2%
Taylor expanded in y around inf
Simplified26.9%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -2e-257) (fma z x x) (fma y z y)))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -2e-257) {
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-257) 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-257], N[(z * x + x), $MachinePrecision], N[(y * z + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -2 \cdot 10^{-257}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, z, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -2e-257Initial program 100.0%
Taylor expanded in x around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
accelerator-lowering-fma.f6448.3
Simplified48.3%
if -2e-257 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
distribute-lft-inN/A
*-rgt-identityN/A
accelerator-lowering-fma.f6447.2
Simplified47.2%
(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-+.f6453.0
Simplified53.0%
Final simplification53.0%
(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-+.f6453.0
Simplified53.0%
Taylor expanded in y around 0
Simplified27.7%
herbie shell --seed 2024196
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
:precision binary64
(* (+ x y) (+ z 1.0)))