
(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 8 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%
+-commutative99.9%
fma-def100.0%
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(if (<= x -17000000.0)
(* z x)
(if (<= x 3e-43)
(* z 5.0)
(if (<= x 2.1e+17) (* x y) (if (<= x 5e+238) (* z x) (* x y))))))
double code(double x, double y, double z) {
double tmp;
if (x <= -17000000.0) {
tmp = z * x;
} else if (x <= 3e-43) {
tmp = z * 5.0;
} else if (x <= 2.1e+17) {
tmp = x * y;
} else if (x <= 5e+238) {
tmp = z * x;
} 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 <= (-17000000.0d0)) then
tmp = z * x
else if (x <= 3d-43) then
tmp = z * 5.0d0
else if (x <= 2.1d+17) then
tmp = x * y
else if (x <= 5d+238) then
tmp = z * x
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -17000000.0) {
tmp = z * x;
} else if (x <= 3e-43) {
tmp = z * 5.0;
} else if (x <= 2.1e+17) {
tmp = x * y;
} else if (x <= 5e+238) {
tmp = z * x;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -17000000.0: tmp = z * x elif x <= 3e-43: tmp = z * 5.0 elif x <= 2.1e+17: tmp = x * y elif x <= 5e+238: tmp = z * x else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -17000000.0) tmp = Float64(z * x); elseif (x <= 3e-43) tmp = Float64(z * 5.0); elseif (x <= 2.1e+17) tmp = Float64(x * y); elseif (x <= 5e+238) tmp = Float64(z * x); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -17000000.0) tmp = z * x; elseif (x <= 3e-43) tmp = z * 5.0; elseif (x <= 2.1e+17) tmp = x * y; elseif (x <= 5e+238) tmp = z * x; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -17000000.0], N[(z * x), $MachinePrecision], If[LessEqual[x, 3e-43], N[(z * 5.0), $MachinePrecision], If[LessEqual[x, 2.1e+17], N[(x * y), $MachinePrecision], If[LessEqual[x, 5e+238], N[(z * x), $MachinePrecision], N[(x * y), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -17000000:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;x \leq 3 \cdot 10^{-43}:\\
\;\;\;\;z \cdot 5\\
\mathbf{elif}\;x \leq 2.1 \cdot 10^{+17}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 5 \cdot 10^{+238}:\\
\;\;\;\;z \cdot x\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -1.7e7 or 2.1e17 < x < 4.99999999999999995e238Initial program 100.0%
Taylor expanded in y around 0 64.2%
+-commutative64.2%
*-commutative64.2%
distribute-rgt-in64.2%
Simplified64.2%
Taylor expanded in x around inf 63.7%
if -1.7e7 < x < 3.00000000000000003e-43Initial program 99.8%
Taylor expanded in x around 0 70.5%
if 3.00000000000000003e-43 < x < 2.1e17 or 4.99999999999999995e238 < x Initial program 99.9%
Taylor expanded in y around inf 69.8%
Final simplification67.9%
(FPCore (x y z) :precision binary64 (if (<= x -17000000.0) (* x (+ z y)) (if (<= x 0.52) (- (* x y) (* z -5.0)) (+ (* x y) (* z x)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -17000000.0) {
tmp = x * (z + y);
} else if (x <= 0.52) {
tmp = (x * y) - (z * -5.0);
} else {
tmp = (x * y) + (z * x);
}
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 <= (-17000000.0d0)) then
tmp = x * (z + y)
else if (x <= 0.52d0) then
tmp = (x * y) - (z * (-5.0d0))
else
tmp = (x * y) + (z * x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -17000000.0) {
tmp = x * (z + y);
} else if (x <= 0.52) {
tmp = (x * y) - (z * -5.0);
} else {
tmp = (x * y) + (z * x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -17000000.0: tmp = x * (z + y) elif x <= 0.52: tmp = (x * y) - (z * -5.0) else: tmp = (x * y) + (z * x) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -17000000.0) tmp = Float64(x * Float64(z + y)); elseif (x <= 0.52) tmp = Float64(Float64(x * y) - Float64(z * -5.0)); else tmp = Float64(Float64(x * y) + Float64(z * x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -17000000.0) tmp = x * (z + y); elseif (x <= 0.52) tmp = (x * y) - (z * -5.0); else tmp = (x * y) + (z * x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -17000000.0], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 0.52], N[(N[(x * y), $MachinePrecision] - N[(z * -5.0), $MachinePrecision]), $MachinePrecision], N[(N[(x * y), $MachinePrecision] + N[(z * x), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -17000000:\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{elif}\;x \leq 0.52:\\
\;\;\;\;x \cdot y - z \cdot -5\\
\mathbf{else}:\\
\;\;\;\;x \cdot y + z \cdot x\\
\end{array}
\end{array}
if x < -1.7e7Initial program 100.0%
Taylor expanded in x around inf 99.0%
+-commutative99.0%
Simplified99.0%
if -1.7e7 < x < 0.52000000000000002Initial program 99.8%
+-commutative99.8%
fma-def100.0%
Applied egg-rr100.0%
Taylor expanded in z around -inf 99.8%
+-commutative99.8%
fma-def99.9%
mul-1-neg99.9%
fma-neg99.8%
sub-neg99.8%
+-commutative99.8%
mul-1-neg99.8%
unsub-neg99.8%
metadata-eval99.8%
Simplified99.8%
Taylor expanded in x around 0 99.4%
*-commutative99.4%
Simplified99.4%
if 0.52000000000000002 < x Initial program 100.0%
Taylor expanded in x around inf 99.0%
+-commutative99.0%
Simplified99.0%
Taylor expanded in z around 0 99.0%
Final simplification99.2%
(FPCore (x y z) :precision binary64 (if (or (<= y -1.3e+72) (not (<= y 4.4e-17))) (* x (+ z y)) (* z (+ 5.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.3e+72) || !(y <= 4.4e-17)) {
tmp = x * (z + y);
} else {
tmp = z * (5.0 + x);
}
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 ((y <= (-1.3d+72)) .or. (.not. (y <= 4.4d-17))) then
tmp = x * (z + y)
else
tmp = z * (5.0d0 + x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.3e+72) || !(y <= 4.4e-17)) {
tmp = x * (z + y);
} else {
tmp = z * (5.0 + x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.3e+72) or not (y <= 4.4e-17): tmp = x * (z + y) else: tmp = z * (5.0 + x) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.3e+72) || !(y <= 4.4e-17)) tmp = Float64(x * Float64(z + y)); else tmp = Float64(z * Float64(5.0 + x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.3e+72) || ~((y <= 4.4e-17))) tmp = x * (z + y); else tmp = z * (5.0 + x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.3e+72], N[Not[LessEqual[y, 4.4e-17]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.3 \cdot 10^{+72} \lor \neg \left(y \leq 4.4 \cdot 10^{-17}\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\end{array}
\end{array}
if y < -1.29999999999999991e72 or 4.4e-17 < y Initial program 99.9%
Taylor expanded in x around inf 76.8%
+-commutative76.8%
Simplified76.8%
if -1.29999999999999991e72 < y < 4.4e-17Initial program 99.9%
Taylor expanded in y around 0 89.5%
+-commutative89.5%
*-commutative89.5%
distribute-rgt-in89.5%
Simplified89.5%
Final simplification83.6%
(FPCore (x y z) :precision binary64 (if (<= y -3.4e+161) (* x y) (if (<= y 0.37) (* z (+ 5.0 x)) (* x y))))
double code(double x, double y, double z) {
double tmp;
if (y <= -3.4e+161) {
tmp = x * y;
} else if (y <= 0.37) {
tmp = z * (5.0 + x);
} 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 (y <= (-3.4d+161)) then
tmp = x * y
else if (y <= 0.37d0) then
tmp = z * (5.0d0 + x)
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -3.4e+161) {
tmp = x * y;
} else if (y <= 0.37) {
tmp = z * (5.0 + x);
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -3.4e+161: tmp = x * y elif y <= 0.37: tmp = z * (5.0 + x) else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (y <= -3.4e+161) tmp = Float64(x * y); elseif (y <= 0.37) tmp = Float64(z * Float64(5.0 + x)); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -3.4e+161) tmp = x * y; elseif (y <= 0.37) tmp = z * (5.0 + x); else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -3.4e+161], N[(x * y), $MachinePrecision], If[LessEqual[y, 0.37], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision], N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.4 \cdot 10^{+161}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;y \leq 0.37:\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if y < -3.39999999999999993e161 or 0.37 < y Initial program 99.9%
Taylor expanded in y around inf 73.9%
if -3.39999999999999993e161 < y < 0.37Initial program 99.9%
Taylor expanded in y around 0 85.4%
+-commutative85.4%
*-commutative85.4%
distribute-rgt-in85.4%
Simplified85.4%
Final simplification81.0%
(FPCore (x y z) :precision binary64 (+ (* x (+ z y)) (* z 5.0)))
double code(double x, double y, double z) {
return (x * (z + y)) + (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 * (z + y)) + (z * 5.0d0)
end function
public static double code(double x, double y, double z) {
return (x * (z + y)) + (z * 5.0);
}
def code(x, y, z): return (x * (z + y)) + (z * 5.0)
function code(x, y, z) return Float64(Float64(x * Float64(z + y)) + Float64(z * 5.0)) end
function tmp = code(x, y, z) tmp = (x * (z + y)) + (z * 5.0); end
code[x_, y_, z_] := N[(N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision] + N[(z * 5.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(z + y\right) + z \cdot 5
\end{array}
Initial program 99.9%
Final simplification99.9%
(FPCore (x y z) :precision binary64 (if (<= x -1.9e-11) (* x y) (if (<= x 3.5e-46) (* z 5.0) (* x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.9e-11) {
tmp = x * y;
} else if (x <= 3.5e-46) {
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 <= (-1.9d-11)) then
tmp = x * y
else if (x <= 3.5d-46) 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 <= -1.9e-11) {
tmp = x * y;
} else if (x <= 3.5e-46) {
tmp = z * 5.0;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.9e-11: tmp = x * y elif x <= 3.5e-46: tmp = z * 5.0 else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.9e-11) tmp = Float64(x * y); elseif (x <= 3.5e-46) 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 <= -1.9e-11) tmp = x * y; elseif (x <= 3.5e-46) tmp = z * 5.0; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.9e-11], N[(x * y), $MachinePrecision], If[LessEqual[x, 3.5e-46], N[(z * 5.0), $MachinePrecision], N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.9 \cdot 10^{-11}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 3.5 \cdot 10^{-46}:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -1.8999999999999999e-11 or 3.5000000000000002e-46 < x Initial program 100.0%
Taylor expanded in y around inf 47.9%
if -1.8999999999999999e-11 < x < 3.5000000000000002e-46Initial program 99.8%
Taylor expanded in x around 0 71.5%
Final simplification60.2%
(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 39.9%
Final simplification39.9%
(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 2023196
(FPCore (x y z)
:name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendOutside from plot-0.2.3.4, C"
:precision binary64
:herbie-target
(+ (* (+ x 5.0) z) (* x y))
(+ (* x (+ y z)) (* z 5.0)))