
(FPCore (x y z) :precision binary64 (+ (* x (+ y z)) (* z 5.0)))
double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
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)) + (z * 5.0d0)
end function
public static double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
def code(x, y, z): return (x * (y + z)) + (z * 5.0)
function code(x, y, z) return Float64(Float64(x * Float64(y + z)) + Float64(z * 5.0)) end
function tmp = code(x, y, z) tmp = (x * (y + z)) + (z * 5.0); end
code[x_, y_, z_] := N[(N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision] + N[(z * 5.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(y + z\right) + z \cdot 5
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x (+ y z)) (* z 5.0)))
double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
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)) + (z * 5.0d0)
end function
public static double code(double x, double y, double z) {
return (x * (y + z)) + (z * 5.0);
}
def code(x, y, z): return (x * (y + z)) + (z * 5.0)
function code(x, y, z) return Float64(Float64(x * Float64(y + z)) + Float64(z * 5.0)) end
function tmp = code(x, y, z) tmp = (x * (y + z)) + (z * 5.0); end
code[x_, y_, z_] := N[(N[(x * N[(y + z), $MachinePrecision]), $MachinePrecision] + N[(z * 5.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(y + z\right) + z \cdot 5
\end{array}
(FPCore (x y z) :precision binary64 (fma z 5.0 (* x (+ z y))))
double code(double x, double y, double z) {
return fma(z, 5.0, (x * (z + y)));
}
function code(x, y, z) return fma(z, 5.0, Float64(x * Float64(z + y))) end
code[x_, y_, z_] := N[(z * 5.0 + N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(z, 5, x \cdot \left(z + y\right)\right)
\end{array}
Initial program 99.9%
+-commutativeN/A
accelerator-lowering-fma.f64N/A
*-lowering-*.f64N/A
+-lowering-+.f64100.0
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (let* ((t_0 (* x (+ z y)))) (if (<= x -490.0) t_0 (if (<= x 5.0) (fma y x (* z 5.0)) t_0))))
double code(double x, double y, double z) {
double t_0 = x * (z + y);
double tmp;
if (x <= -490.0) {
tmp = t_0;
} else if (x <= 5.0) {
tmp = fma(y, x, (z * 5.0));
} else {
tmp = t_0;
}
return tmp;
}
function code(x, y, z) t_0 = Float64(x * Float64(z + y)) tmp = 0.0 if (x <= -490.0) tmp = t_0; elseif (x <= 5.0) tmp = fma(y, x, Float64(z * 5.0)); else tmp = t_0; end return tmp end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -490.0], t$95$0, If[LessEqual[x, 5.0], N[(y * x + N[(z * 5.0), $MachinePrecision]), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(z + y\right)\\
\mathbf{if}\;x \leq -490:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq 5:\\
\;\;\;\;\mathsf{fma}\left(y, x, z \cdot 5\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if x < -490 or 5 < x Initial program 100.0%
Taylor expanded in x around inf
*-lowering-*.f64N/A
+-commutativeN/A
+-lowering-+.f6498.5
Simplified98.5%
if -490 < x < 5Initial program 99.8%
Taylor expanded in y around inf
*-lowering-*.f6498.7
Simplified98.7%
*-commutativeN/A
accelerator-lowering-fma.f64N/A
*-lowering-*.f6498.8
Applied egg-rr98.8%
(FPCore (x y z) :precision binary64 (let* ((t_0 (* x (+ z y)))) (if (<= x -0.66) t_0 (if (<= x 4.2e-91) (* z (+ 5.0 x)) t_0))))
double code(double x, double y, double z) {
double t_0 = x * (z + y);
double tmp;
if (x <= -0.66) {
tmp = t_0;
} else if (x <= 4.2e-91) {
tmp = z * (5.0 + x);
} 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 = x * (z + y)
if (x <= (-0.66d0)) then
tmp = t_0
else if (x <= 4.2d-91) then
tmp = z * (5.0d0 + x)
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * (z + y);
double tmp;
if (x <= -0.66) {
tmp = t_0;
} else if (x <= 4.2e-91) {
tmp = z * (5.0 + x);
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * (z + y) tmp = 0 if x <= -0.66: tmp = t_0 elif x <= 4.2e-91: tmp = z * (5.0 + x) else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(z + y)) tmp = 0.0 if (x <= -0.66) tmp = t_0; elseif (x <= 4.2e-91) tmp = Float64(z * Float64(5.0 + x)); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * (z + y); tmp = 0.0; if (x <= -0.66) tmp = t_0; elseif (x <= 4.2e-91) tmp = z * (5.0 + x); else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -0.66], t$95$0, If[LessEqual[x, 4.2e-91], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(z + y\right)\\
\mathbf{if}\;x \leq -0.66:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq 4.2 \cdot 10^{-91}:\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if x < -0.660000000000000031 or 4.1999999999999998e-91 < x Initial program 100.0%
Taylor expanded in x around inf
*-lowering-*.f64N/A
+-commutativeN/A
+-lowering-+.f6495.6
Simplified95.6%
if -0.660000000000000031 < x < 4.1999999999999998e-91Initial program 99.8%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-lowering-*.f64N/A
+-lowering-+.f6477.7
Simplified77.7%
(FPCore (x y z) :precision binary64 (let* ((t_0 (* x (+ z y)))) (if (<= x -0.00048) t_0 (if (<= x 4.1e-91) (* z 5.0) t_0))))
double code(double x, double y, double z) {
double t_0 = x * (z + y);
double tmp;
if (x <= -0.00048) {
tmp = t_0;
} else if (x <= 4.1e-91) {
tmp = z * 5.0;
} 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 = x * (z + y)
if (x <= (-0.00048d0)) then
tmp = t_0
else if (x <= 4.1d-91) then
tmp = z * 5.0d0
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * (z + y);
double tmp;
if (x <= -0.00048) {
tmp = t_0;
} else if (x <= 4.1e-91) {
tmp = z * 5.0;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * (z + y) tmp = 0 if x <= -0.00048: tmp = t_0 elif x <= 4.1e-91: tmp = z * 5.0 else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(z + y)) tmp = 0.0 if (x <= -0.00048) tmp = t_0; elseif (x <= 4.1e-91) tmp = Float64(z * 5.0); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * (z + y); tmp = 0.0; if (x <= -0.00048) tmp = t_0; elseif (x <= 4.1e-91) tmp = z * 5.0; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -0.00048], t$95$0, If[LessEqual[x, 4.1e-91], N[(z * 5.0), $MachinePrecision], t$95$0]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(z + y\right)\\
\mathbf{if}\;x \leq -0.00048:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq 4.1 \cdot 10^{-91}:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if x < -4.80000000000000012e-4 or 4.10000000000000024e-91 < x Initial program 100.0%
Taylor expanded in x around inf
*-lowering-*.f64N/A
+-commutativeN/A
+-lowering-+.f6495.6
Simplified95.6%
if -4.80000000000000012e-4 < x < 4.10000000000000024e-91Initial program 99.8%
Taylor expanded in x around 0
*-lowering-*.f6477.0
Simplified77.0%
Final simplification87.9%
(FPCore (x y z) :precision binary64 (if (<= x -5.0) (* z x) (if (<= x 9e-90) (* z 5.0) (* x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= -5.0) {
tmp = z * x;
} else if (x <= 9e-90) {
tmp = z * 5.0;
} 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 (x <= (-5.0d0)) then
tmp = z * x
else if (x <= 9d-90) then
tmp = z * 5.0d0
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -5.0) {
tmp = z * x;
} else if (x <= 9e-90) {
tmp = z * 5.0;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -5.0: tmp = z * x elif x <= 9e-90: tmp = z * 5.0 else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -5.0) tmp = Float64(z * x); elseif (x <= 9e-90) tmp = Float64(z * 5.0); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -5.0) tmp = z * x; elseif (x <= 9e-90) tmp = z * 5.0; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -5.0], N[(z * x), $MachinePrecision], If[LessEqual[x, 9e-90], N[(z * 5.0), $MachinePrecision], N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;x \leq 9 \cdot 10^{-90}:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -5Initial program 100.0%
Taylor expanded in x around inf
*-lowering-*.f64N/A
+-commutativeN/A
+-lowering-+.f6498.9
Simplified98.9%
Taylor expanded in z around inf
*-lowering-*.f6456.9
Simplified56.9%
if -5 < x < 9.00000000000000017e-90Initial program 99.8%
Taylor expanded in x around 0
*-lowering-*.f6475.8
Simplified75.8%
if 9.00000000000000017e-90 < x Initial program 100.0%
Taylor expanded in y around inf
*-lowering-*.f6453.6
Simplified53.6%
Final simplification63.8%
(FPCore (x y z) :precision binary64 (if (<= x -4.1e-5) (* x y) (if (<= x 1e-89) (* z 5.0) (* x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= -4.1e-5) {
tmp = x * y;
} else if (x <= 1e-89) {
tmp = z * 5.0;
} 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 (x <= (-4.1d-5)) then
tmp = x * y
else if (x <= 1d-89) then
tmp = z * 5.0d0
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -4.1e-5) {
tmp = x * y;
} else if (x <= 1e-89) {
tmp = z * 5.0;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -4.1e-5: tmp = x * y elif x <= 1e-89: tmp = z * 5.0 else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -4.1e-5) tmp = Float64(x * y); elseif (x <= 1e-89) tmp = Float64(z * 5.0); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -4.1e-5) tmp = x * y; elseif (x <= 1e-89) tmp = z * 5.0; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -4.1e-5], N[(x * y), $MachinePrecision], If[LessEqual[x, 1e-89], N[(z * 5.0), $MachinePrecision], N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.1 \cdot 10^{-5}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 10^{-89}:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -4.10000000000000005e-5 or 1.00000000000000004e-89 < x Initial program 100.0%
Taylor expanded in y around inf
*-lowering-*.f6451.9
Simplified51.9%
if -4.10000000000000005e-5 < x < 1.00000000000000004e-89Initial program 99.8%
Taylor expanded in x around 0
*-lowering-*.f6476.5
Simplified76.5%
Final simplification62.2%
(FPCore (x y z) :precision binary64 (* z 5.0))
double code(double x, double y, double z) {
return z * 5.0;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z * 5.0d0
end function
public static double code(double x, double y, double z) {
return z * 5.0;
}
def code(x, y, z): return z * 5.0
function code(x, y, z) return Float64(z * 5.0) end
function tmp = code(x, y, z) tmp = z * 5.0; end
code[x_, y_, z_] := N[(z * 5.0), $MachinePrecision]
\begin{array}{l}
\\
z \cdot 5
\end{array}
Initial program 99.9%
Taylor expanded in x around 0
*-lowering-*.f6435.1
Simplified35.1%
Final simplification35.1%
(FPCore (x y z) :precision binary64 (+ (* (+ x 5.0) z) (* x y)))
double code(double x, double y, double z) {
return ((x + 5.0) * 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 = ((x + 5.0d0) * z) + (x * y)
end function
public static double code(double x, double y, double z) {
return ((x + 5.0) * z) + (x * y);
}
def code(x, y, z): return ((x + 5.0) * z) + (x * y)
function code(x, y, z) return Float64(Float64(Float64(x + 5.0) * z) + Float64(x * y)) end
function tmp = code(x, y, z) tmp = ((x + 5.0) * z) + (x * y); end
code[x_, y_, z_] := N[(N[(N[(x + 5.0), $MachinePrecision] * z), $MachinePrecision] + N[(x * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + 5\right) \cdot z + x \cdot y
\end{array}
herbie shell --seed 2024198
(FPCore (x y z)
:name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendOutside from plot-0.2.3.4, C"
:precision binary64
:alt
(! :herbie-platform default (+ (* (+ x 5) z) (* x y)))
(+ (* x (+ y z)) (* z 5.0)))