
(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 (* (+ z y) x)))
double code(double x, double y, double z) {
return fma(z, 5.0, ((z + y) * x));
}
function code(x, y, z) return fma(z, 5.0, Float64(Float64(z + y) * x)) end
code[x_, y_, z_] := N[(z * 5.0 + N[(N[(z + y), $MachinePrecision] * x), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(z, 5, \left(z + y\right) \cdot x\right)
\end{array}
Initial program 99.9%
lift-+.f64N/A
+-commutativeN/A
lift-*.f64N/A
lower-fma.f64100.0
lift-*.f64N/A
*-commutativeN/A
lower-*.f64100.0
lift-+.f64N/A
+-commutativeN/A
lower-+.f64100.0
Applied rewrites100.0%
(FPCore (x y z)
:precision binary64
(if (<= x -5.5e+140)
(* y x)
(if (<= x -1.26e+95)
(* x z)
(if (or (<= x -5.3e-58) (not (<= x 1.05e-59))) (* y x) (* 5.0 z)))))
double code(double x, double y, double z) {
double tmp;
if (x <= -5.5e+140) {
tmp = y * x;
} else if (x <= -1.26e+95) {
tmp = x * z;
} else if ((x <= -5.3e-58) || !(x <= 1.05e-59)) {
tmp = y * x;
} else {
tmp = 5.0 * 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 (x <= (-5.5d+140)) then
tmp = y * x
else if (x <= (-1.26d+95)) then
tmp = x * z
else if ((x <= (-5.3d-58)) .or. (.not. (x <= 1.05d-59))) then
tmp = y * x
else
tmp = 5.0d0 * z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -5.5e+140) {
tmp = y * x;
} else if (x <= -1.26e+95) {
tmp = x * z;
} else if ((x <= -5.3e-58) || !(x <= 1.05e-59)) {
tmp = y * x;
} else {
tmp = 5.0 * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -5.5e+140: tmp = y * x elif x <= -1.26e+95: tmp = x * z elif (x <= -5.3e-58) or not (x <= 1.05e-59): tmp = y * x else: tmp = 5.0 * z return tmp
function code(x, y, z) tmp = 0.0 if (x <= -5.5e+140) tmp = Float64(y * x); elseif (x <= -1.26e+95) tmp = Float64(x * z); elseif ((x <= -5.3e-58) || !(x <= 1.05e-59)) tmp = Float64(y * x); else tmp = Float64(5.0 * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -5.5e+140) tmp = y * x; elseif (x <= -1.26e+95) tmp = x * z; elseif ((x <= -5.3e-58) || ~((x <= 1.05e-59))) tmp = y * x; else tmp = 5.0 * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -5.5e+140], N[(y * x), $MachinePrecision], If[LessEqual[x, -1.26e+95], N[(x * z), $MachinePrecision], If[Or[LessEqual[x, -5.3e-58], N[Not[LessEqual[x, 1.05e-59]], $MachinePrecision]], N[(y * x), $MachinePrecision], N[(5.0 * z), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.5 \cdot 10^{+140}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;x \leq -1.26 \cdot 10^{+95}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;x \leq -5.3 \cdot 10^{-58} \lor \neg \left(x \leq 1.05 \cdot 10^{-59}\right):\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;5 \cdot z\\
\end{array}
\end{array}
if x < -5.5e140 or -1.26e95 < x < -5.3000000000000003e-58 or 1.04999999999999998e-59 < x Initial program 100.0%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f6459.3
Applied rewrites59.3%
if -5.5e140 < x < -1.26e95Initial program 100.0%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6491.7
Applied rewrites91.7%
Taylor expanded in x around inf
Applied rewrites91.7%
if -5.3000000000000003e-58 < x < 1.04999999999999998e-59Initial program 99.8%
Taylor expanded in x around 0
lower-*.f6481.1
Applied rewrites81.1%
Final simplification69.6%
(FPCore (x y z) :precision binary64 (if (or (<= x -5.3e-58) (not (<= x 1.05e-59))) (* (+ z y) x) (fma z 5.0 (* x z))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -5.3e-58) || !(x <= 1.05e-59)) {
tmp = (z + y) * x;
} else {
tmp = fma(z, 5.0, (x * z));
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((x <= -5.3e-58) || !(x <= 1.05e-59)) tmp = Float64(Float64(z + y) * x); else tmp = fma(z, 5.0, Float64(x * z)); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[x, -5.3e-58], N[Not[LessEqual[x, 1.05e-59]], $MachinePrecision]], N[(N[(z + y), $MachinePrecision] * x), $MachinePrecision], N[(z * 5.0 + N[(x * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.3 \cdot 10^{-58} \lor \neg \left(x \leq 1.05 \cdot 10^{-59}\right):\\
\;\;\;\;\left(z + y\right) \cdot x\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(z, 5, x \cdot z\right)\\
\end{array}
\end{array}
if x < -5.3000000000000003e-58 or 1.04999999999999998e-59 < x Initial program 100.0%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6448.4
Applied rewrites48.4%
Taylor expanded in x around inf
Applied rewrites42.3%
Taylor expanded in x around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6493.9
Applied rewrites93.9%
if -5.3000000000000003e-58 < x < 1.04999999999999998e-59Initial program 99.8%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6481.1
Applied rewrites81.1%
Applied rewrites81.2%
Final simplification88.8%
(FPCore (x y z) :precision binary64 (if (or (<= x -5.3e-58) (not (<= x 1.05e-59))) (* (+ z y) x) (* 5.0 z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -5.3e-58) || !(x <= 1.05e-59)) {
tmp = (z + y) * x;
} else {
tmp = 5.0 * 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 ((x <= (-5.3d-58)) .or. (.not. (x <= 1.05d-59))) then
tmp = (z + y) * x
else
tmp = 5.0d0 * z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -5.3e-58) || !(x <= 1.05e-59)) {
tmp = (z + y) * x;
} else {
tmp = 5.0 * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -5.3e-58) or not (x <= 1.05e-59): tmp = (z + y) * x else: tmp = 5.0 * z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -5.3e-58) || !(x <= 1.05e-59)) tmp = Float64(Float64(z + y) * x); else tmp = Float64(5.0 * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -5.3e-58) || ~((x <= 1.05e-59))) tmp = (z + y) * x; else tmp = 5.0 * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -5.3e-58], N[Not[LessEqual[x, 1.05e-59]], $MachinePrecision]], N[(N[(z + y), $MachinePrecision] * x), $MachinePrecision], N[(5.0 * z), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.3 \cdot 10^{-58} \lor \neg \left(x \leq 1.05 \cdot 10^{-59}\right):\\
\;\;\;\;\left(z + y\right) \cdot x\\
\mathbf{else}:\\
\;\;\;\;5 \cdot z\\
\end{array}
\end{array}
if x < -5.3000000000000003e-58 or 1.04999999999999998e-59 < x Initial program 100.0%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6448.4
Applied rewrites48.4%
Taylor expanded in x around inf
Applied rewrites42.3%
Taylor expanded in x around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6493.9
Applied rewrites93.9%
if -5.3000000000000003e-58 < x < 1.04999999999999998e-59Initial program 99.8%
Taylor expanded in x around 0
lower-*.f6481.1
Applied rewrites81.1%
Final simplification88.8%
(FPCore (x y z) :precision binary64 (if (or (<= z -5.6e-17) (not (<= z 2.7e-114))) (* (+ 5.0 x) z) (* y x)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -5.6e-17) || !(z <= 2.7e-114)) {
tmp = (5.0 + x) * z;
} else {
tmp = y * 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 ((z <= (-5.6d-17)) .or. (.not. (z <= 2.7d-114))) then
tmp = (5.0d0 + x) * z
else
tmp = y * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -5.6e-17) || !(z <= 2.7e-114)) {
tmp = (5.0 + x) * z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -5.6e-17) or not (z <= 2.7e-114): tmp = (5.0 + x) * z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -5.6e-17) || !(z <= 2.7e-114)) tmp = Float64(Float64(5.0 + x) * z); else tmp = Float64(y * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -5.6e-17) || ~((z <= 2.7e-114))) tmp = (5.0 + x) * z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -5.6e-17], N[Not[LessEqual[z, 2.7e-114]], $MachinePrecision]], N[(N[(5.0 + x), $MachinePrecision] * z), $MachinePrecision], N[(y * x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -5.6 \cdot 10^{-17} \lor \neg \left(z \leq 2.7 \cdot 10^{-114}\right):\\
\;\;\;\;\left(5 + x\right) \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if z < -5.5999999999999998e-17 or 2.7e-114 < z Initial program 99.9%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6485.5
Applied rewrites85.5%
if -5.5999999999999998e-17 < z < 2.7e-114Initial program 100.0%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f6473.0
Applied rewrites73.0%
Final simplification80.2%
(FPCore (x y z) :precision binary64 (if (or (<= x -5.0) (not (<= x 600.0))) (* x z) (* 5.0 z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -5.0) || !(x <= 600.0)) {
tmp = x * z;
} else {
tmp = 5.0 * 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 ((x <= (-5.0d0)) .or. (.not. (x <= 600.0d0))) then
tmp = x * z
else
tmp = 5.0d0 * z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -5.0) || !(x <= 600.0)) {
tmp = x * z;
} else {
tmp = 5.0 * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -5.0) or not (x <= 600.0): tmp = x * z else: tmp = 5.0 * z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -5.0) || !(x <= 600.0)) tmp = Float64(x * z); else tmp = Float64(5.0 * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -5.0) || ~((x <= 600.0))) tmp = x * z; else tmp = 5.0 * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -5.0], N[Not[LessEqual[x, 600.0]], $MachinePrecision]], N[(x * z), $MachinePrecision], N[(5.0 * z), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5 \lor \neg \left(x \leq 600\right):\\
\;\;\;\;x \cdot z\\
\mathbf{else}:\\
\;\;\;\;5 \cdot z\\
\end{array}
\end{array}
if x < -5 or 600 < x Initial program 100.0%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6450.4
Applied rewrites50.4%
Taylor expanded in x around inf
Applied rewrites49.1%
if -5 < x < 600Initial program 99.9%
Taylor expanded in x around 0
lower-*.f6472.7
Applied rewrites72.7%
Final simplification60.7%
(FPCore (x y z) :precision binary64 (* x z))
double code(double x, double y, double z) {
return x * z;
}
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
end function
public static double code(double x, double y, double z) {
return x * z;
}
def code(x, y, z): return x * z
function code(x, y, z) return Float64(x * z) end
function tmp = code(x, y, z) tmp = x * z; end
code[x_, y_, z_] := N[(x * z), $MachinePrecision]
\begin{array}{l}
\\
x \cdot z
\end{array}
Initial program 99.9%
Taylor expanded in y around 0
distribute-rgt-inN/A
*-commutativeN/A
lower-*.f64N/A
lower-+.f6461.6
Applied rewrites61.6%
Taylor expanded in x around inf
Applied rewrites26.7%
(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 2024329
(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)))