
(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 9 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 (fma x y (* z (+ 5.0 x))))
double code(double x, double y, double z) {
return fma(x, y, (z * (5.0 + x)));
}
function code(x, y, z) return fma(x, y, Float64(z * Float64(5.0 + x))) end
code[x_, y_, z_] := N[(x * y + N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(x, y, z \cdot \left(5 + x\right)\right)
\end{array}
Initial program 99.9%
distribute-lft-in99.1%
associate-+l+99.1%
*-commutative99.1%
fma-def99.9%
distribute-lft-out99.9%
Simplified99.9%
Final simplification99.9%
(FPCore (x y z)
:precision binary64
(if (or (<= y -1.6e+56)
(and (not (<= y 2.4e+19)) (or (<= y 6.5e+69) (not (<= y 7.5e+127)))))
(* x y)
(* z (+ 5.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.6e+56) || (!(y <= 2.4e+19) && ((y <= 6.5e+69) || !(y <= 7.5e+127)))) {
tmp = x * 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 <= (-1.6d+56)) .or. (.not. (y <= 2.4d+19)) .and. (y <= 6.5d+69) .or. (.not. (y <= 7.5d+127))) then
tmp = x * 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 <= -1.6e+56) || (!(y <= 2.4e+19) && ((y <= 6.5e+69) || !(y <= 7.5e+127)))) {
tmp = x * y;
} else {
tmp = z * (5.0 + x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.6e+56) or (not (y <= 2.4e+19) and ((y <= 6.5e+69) or not (y <= 7.5e+127))): tmp = x * y else: tmp = z * (5.0 + x) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.6e+56) || (!(y <= 2.4e+19) && ((y <= 6.5e+69) || !(y <= 7.5e+127)))) tmp = Float64(x * 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 <= -1.6e+56) || (~((y <= 2.4e+19)) && ((y <= 6.5e+69) || ~((y <= 7.5e+127))))) tmp = x * y; else tmp = z * (5.0 + x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.6e+56], And[N[Not[LessEqual[y, 2.4e+19]], $MachinePrecision], Or[LessEqual[y, 6.5e+69], N[Not[LessEqual[y, 7.5e+127]], $MachinePrecision]]]], N[(x * y), $MachinePrecision], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.6 \cdot 10^{+56} \lor \neg \left(y \leq 2.4 \cdot 10^{+19}\right) \land \left(y \leq 6.5 \cdot 10^{+69} \lor \neg \left(y \leq 7.5 \cdot 10^{+127}\right)\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\end{array}
\end{array}
if y < -1.60000000000000002e56 or 2.4e19 < y < 6.5000000000000001e69 or 7.4999999999999996e127 < y Initial program 99.9%
Taylor expanded in y around inf 72.0%
if -1.60000000000000002e56 < y < 2.4e19 or 6.5000000000000001e69 < y < 7.4999999999999996e127Initial program 99.9%
Taylor expanded in y around 0 84.5%
+-commutative84.5%
*-commutative84.5%
distribute-rgt-in84.5%
Simplified84.5%
Final simplification80.1%
(FPCore (x y z) :precision binary64 (if (or (<= x -6.7) (not (<= x 5.0))) (* x (+ z y)) (- (* x y) (* z -5.0))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -6.7) || !(x <= 5.0)) {
tmp = x * (z + y);
} else {
tmp = (x * y) - (z * -5.0);
}
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) :: tmp
if ((x <= (-6.7d0)) .or. (.not. (x <= 5.0d0))) then
tmp = x * (z + y)
else
tmp = (x * y) - (z * (-5.0d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -6.7) || !(x <= 5.0)) {
tmp = x * (z + y);
} else {
tmp = (x * y) - (z * -5.0);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -6.7) or not (x <= 5.0): tmp = x * (z + y) else: tmp = (x * y) - (z * -5.0) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -6.7) || !(x <= 5.0)) tmp = Float64(x * Float64(z + y)); else tmp = Float64(Float64(x * y) - Float64(z * -5.0)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -6.7) || ~((x <= 5.0))) tmp = x * (z + y); else tmp = (x * y) - (z * -5.0); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -6.7], N[Not[LessEqual[x, 5.0]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], N[(N[(x * y), $MachinePrecision] - N[(z * -5.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -6.7 \lor \neg \left(x \leq 5\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y - z \cdot -5\\
\end{array}
\end{array}
if x < -6.70000000000000018 or 5 < x Initial program 100.0%
Taylor expanded in x around inf 99.1%
+-commutative99.1%
Simplified99.1%
if -6.70000000000000018 < x < 5Initial program 99.8%
+-commutative99.8%
fma-def100.0%
Applied egg-rr100.0%
Taylor expanded in z around -inf 99.8%
+-commutative99.8%
fma-def99.8%
mul-1-neg99.8%
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 98.5%
*-commutative98.5%
Simplified98.5%
Final simplification98.8%
(FPCore (x y z) :precision binary64 (if (<= x -1.1e+51) (* z x) (if (<= x -3.5e-42) (* x y) (if (<= x 5.0) (* z 5.0) (* z x)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.1e+51) {
tmp = z * x;
} else if (x <= -3.5e-42) {
tmp = x * y;
} else if (x <= 5.0) {
tmp = z * 5.0;
} else {
tmp = 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 <= (-1.1d+51)) then
tmp = z * x
else if (x <= (-3.5d-42)) then
tmp = x * y
else if (x <= 5.0d0) then
tmp = z * 5.0d0
else
tmp = z * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1.1e+51) {
tmp = z * x;
} else if (x <= -3.5e-42) {
tmp = x * y;
} else if (x <= 5.0) {
tmp = z * 5.0;
} else {
tmp = z * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.1e+51: tmp = z * x elif x <= -3.5e-42: tmp = x * y elif x <= 5.0: tmp = z * 5.0 else: tmp = z * x return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.1e+51) tmp = Float64(z * x); elseif (x <= -3.5e-42) tmp = Float64(x * y); elseif (x <= 5.0) tmp = Float64(z * 5.0); else tmp = Float64(z * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.1e+51) tmp = z * x; elseif (x <= -3.5e-42) tmp = x * y; elseif (x <= 5.0) tmp = z * 5.0; else tmp = z * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.1e+51], N[(z * x), $MachinePrecision], If[LessEqual[x, -3.5e-42], N[(x * y), $MachinePrecision], If[LessEqual[x, 5.0], N[(z * 5.0), $MachinePrecision], N[(z * x), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.1 \cdot 10^{+51}:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;x \leq -3.5 \cdot 10^{-42}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 5:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;z \cdot x\\
\end{array}
\end{array}
if x < -1.09999999999999996e51 or 5 < x Initial program 100.0%
Taylor expanded in y around 0 59.4%
+-commutative59.4%
*-commutative59.4%
distribute-rgt-in59.4%
Simplified59.4%
Taylor expanded in x around inf 59.1%
if -1.09999999999999996e51 < x < -3.5000000000000002e-42Initial program 99.8%
Taylor expanded in y around inf 59.0%
if -3.5000000000000002e-42 < x < 5Initial program 99.8%
Taylor expanded in x around 0 77.1%
Final simplification67.3%
(FPCore (x y z) :precision binary64 (if (or (<= x -3.75e-6) (not (<= x 5.2e-16))) (* x (+ z y)) (* z (+ 5.0 x))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -3.75e-6) || !(x <= 5.2e-16)) {
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 ((x <= (-3.75d-6)) .or. (.not. (x <= 5.2d-16))) 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 ((x <= -3.75e-6) || !(x <= 5.2e-16)) {
tmp = x * (z + y);
} else {
tmp = z * (5.0 + x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -3.75e-6) or not (x <= 5.2e-16): tmp = x * (z + y) else: tmp = z * (5.0 + x) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -3.75e-6) || !(x <= 5.2e-16)) 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 ((x <= -3.75e-6) || ~((x <= 5.2e-16))) tmp = x * (z + y); else tmp = z * (5.0 + x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -3.75e-6], N[Not[LessEqual[x, 5.2e-16]], $MachinePrecision]], N[(x * N[(z + y), $MachinePrecision]), $MachinePrecision], N[(z * N[(5.0 + x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3.75 \cdot 10^{-6} \lor \neg \left(x \leq 5.2 \cdot 10^{-16}\right):\\
\;\;\;\;x \cdot \left(z + y\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(5 + x\right)\\
\end{array}
\end{array}
if x < -3.7500000000000001e-6 or 5.1999999999999997e-16 < x Initial program 100.0%
Taylor expanded in x around inf 97.7%
+-commutative97.7%
Simplified97.7%
if -3.7500000000000001e-6 < x < 5.1999999999999997e-16Initial program 99.8%
Taylor expanded in y around 0 76.5%
+-commutative76.5%
*-commutative76.5%
distribute-rgt-in76.5%
Simplified76.5%
Final simplification87.8%
(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 -5.2e-42) (* x y) (if (<= x 6.8e-16) (* z 5.0) (* x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= -5.2e-42) {
tmp = x * y;
} else if (x <= 6.8e-16) {
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 <= (-5.2d-42)) then
tmp = x * y
else if (x <= 6.8d-16) 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 <= -5.2e-42) {
tmp = x * y;
} else if (x <= 6.8e-16) {
tmp = z * 5.0;
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -5.2e-42: tmp = x * y elif x <= 6.8e-16: tmp = z * 5.0 else: tmp = x * y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -5.2e-42) tmp = Float64(x * y); elseif (x <= 6.8e-16) 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 <= -5.2e-42) tmp = x * y; elseif (x <= 6.8e-16) tmp = z * 5.0; else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -5.2e-42], N[(x * y), $MachinePrecision], If[LessEqual[x, 6.8e-16], N[(z * 5.0), $MachinePrecision], N[(x * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.2 \cdot 10^{-42}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 6.8 \cdot 10^{-16}:\\
\;\;\;\;z \cdot 5\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if x < -5.2e-42 or 6.8e-16 < x Initial program 99.9%
Taylor expanded in y around inf 46.0%
if -5.2e-42 < x < 6.8e-16Initial program 99.8%
Taylor expanded in x around 0 77.7%
Final simplification60.1%
(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 37.6%
Final simplification37.6%
(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 2023195
(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)))