
(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 6 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 (<= (+ z 1.0) -5e+55)
(* x z)
(if (<= (+ z 1.0) -20000000.0)
(* y z)
(if (<= (+ z 1.0) 2.0)
(+ y x)
(if (<= (+ z 1.0) 4e+144) (* y z) (* x z))))))
double code(double x, double y, double z) {
double tmp;
if ((z + 1.0) <= -5e+55) {
tmp = x * z;
} else if ((z + 1.0) <= -20000000.0) {
tmp = y * z;
} else if ((z + 1.0) <= 2.0) {
tmp = y + x;
} else if ((z + 1.0) <= 4e+144) {
tmp = y * z;
} 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) <= (-5d+55)) then
tmp = x * z
else if ((z + 1.0d0) <= (-20000000.0d0)) then
tmp = y * z
else if ((z + 1.0d0) <= 2.0d0) then
tmp = y + x
else if ((z + 1.0d0) <= 4d+144) then
tmp = y * z
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) <= -5e+55) {
tmp = x * z;
} else if ((z + 1.0) <= -20000000.0) {
tmp = y * z;
} else if ((z + 1.0) <= 2.0) {
tmp = y + x;
} else if ((z + 1.0) <= 4e+144) {
tmp = y * z;
} else {
tmp = x * z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z + 1.0) <= -5e+55: tmp = x * z elif (z + 1.0) <= -20000000.0: tmp = y * z elif (z + 1.0) <= 2.0: tmp = y + x elif (z + 1.0) <= 4e+144: tmp = y * z else: tmp = x * z return tmp
function code(x, y, z) tmp = 0.0 if (Float64(z + 1.0) <= -5e+55) tmp = Float64(x * z); elseif (Float64(z + 1.0) <= -20000000.0) tmp = Float64(y * z); elseif (Float64(z + 1.0) <= 2.0) tmp = Float64(y + x); elseif (Float64(z + 1.0) <= 4e+144) tmp = Float64(y * z); else tmp = Float64(x * z); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z + 1.0) <= -5e+55) tmp = x * z; elseif ((z + 1.0) <= -20000000.0) tmp = y * z; elseif ((z + 1.0) <= 2.0) tmp = y + x; elseif ((z + 1.0) <= 4e+144) tmp = y * z; else tmp = x * z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -5e+55], N[(x * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], -20000000.0], N[(y * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 2.0], N[(y + x), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 4e+144], N[(y * z), $MachinePrecision], N[(x * z), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -5 \cdot 10^{+55}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;z + 1 \leq -20000000:\\
\;\;\;\;y \cdot z\\
\mathbf{elif}\;z + 1 \leq 2:\\
\;\;\;\;y + x\\
\mathbf{elif}\;z + 1 \leq 4 \cdot 10^{+144}:\\
\;\;\;\;y \cdot z\\
\mathbf{else}:\\
\;\;\;\;x \cdot z\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -5.00000000000000046e55 or 4.00000000000000009e144 < (+.f64 z #s(literal 1 binary64)) Initial program 99.9%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6499.9
Applied rewrites99.9%
Taylor expanded in x around inf
Applied rewrites51.3%
if -5.00000000000000046e55 < (+.f64 z #s(literal 1 binary64)) < -2e7 or 2 < (+.f64 z #s(literal 1 binary64)) < 4.00000000000000009e144Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6494.7
Applied rewrites94.7%
Taylor expanded in x around 0
Applied rewrites44.9%
if -2e7 < (+.f64 z #s(literal 1 binary64)) < 2Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f643.3
Applied rewrites3.3%
Taylor expanded in x around inf
Applied rewrites2.9%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6497.9
Applied rewrites97.9%
(FPCore (x y z) :precision binary64 (if (or (<= (+ z 1.0) -20000000.0) (not (<= (+ z 1.0) 2e+38))) (* x z) (+ y x)))
double code(double x, double y, double z) {
double tmp;
if (((z + 1.0) <= -20000000.0) || !((z + 1.0) <= 2e+38)) {
tmp = 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 + 1.0d0) <= (-20000000.0d0)) .or. (.not. ((z + 1.0d0) <= 2d+38))) then
tmp = 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 + 1.0) <= -20000000.0) || !((z + 1.0) <= 2e+38)) {
tmp = x * z;
} else {
tmp = y + x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((z + 1.0) <= -20000000.0) or not ((z + 1.0) <= 2e+38): tmp = x * z else: tmp = y + x return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(z + 1.0) <= -20000000.0) || !(Float64(z + 1.0) <= 2e+38)) tmp = Float64(x * z); else tmp = Float64(y + x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((z + 1.0) <= -20000000.0) || ~(((z + 1.0) <= 2e+38))) tmp = x * z; else tmp = y + x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(z + 1.0), $MachinePrecision], -20000000.0], N[Not[LessEqual[N[(z + 1.0), $MachinePrecision], 2e+38]], $MachinePrecision]], N[(x * z), $MachinePrecision], N[(y + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -20000000 \lor \neg \left(z + 1 \leq 2 \cdot 10^{+38}\right):\\
\;\;\;\;x \cdot z\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -2e7 or 1.99999999999999995e38 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6499.3
Applied rewrites99.3%
Taylor expanded in x around inf
Applied rewrites52.4%
if -2e7 < (+.f64 z #s(literal 1 binary64)) < 1.99999999999999995e38Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f646.7
Applied rewrites6.7%
Taylor expanded in x around inf
Applied rewrites4.2%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6494.0
Applied rewrites94.0%
Final simplification74.5%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -5e-289) (fma z x x) (if (<= (+ x y) 5e+54) (* y z) (+ y x))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -5e-289) {
tmp = fma(z, x, x);
} else if ((x + y) <= 5e+54) {
tmp = y * z;
} else {
tmp = y + x;
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -5e-289) tmp = fma(z, x, x); elseif (Float64(x + y) <= 5e+54) tmp = Float64(y * z); else tmp = Float64(y + x); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -5e-289], N[(z * x + x), $MachinePrecision], If[LessEqual[N[(x + y), $MachinePrecision], 5e+54], N[(y * z), $MachinePrecision], N[(y + x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -5 \cdot 10^{-289}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{elif}\;x + y \leq 5 \cdot 10^{+54}:\\
\;\;\;\;y \cdot z\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if (+.f64 x y) < -5.00000000000000029e-289Initial program 100.0%
Taylor expanded in x around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6449.9
Applied rewrites49.9%
if -5.00000000000000029e-289 < (+.f64 x y) < 5.00000000000000005e54Initial program 99.9%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6465.0
Applied rewrites65.0%
Taylor expanded in x around 0
Applied rewrites26.7%
if 5.00000000000000005e54 < (+.f64 x y) Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6436.1
Applied rewrites36.1%
Taylor expanded in x around inf
Applied rewrites19.3%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6463.7
Applied rewrites63.7%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -5e-289) (fma z x x) (fma z y y)))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -5e-289) {
tmp = fma(z, x, x);
} else {
tmp = fma(z, y, y);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -5e-289) tmp = fma(z, x, x); else tmp = fma(z, y, y); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -5e-289], N[(z * x + x), $MachinePrecision], N[(z * y + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -5 \cdot 10^{-289}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(z, y, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -5.00000000000000029e-289Initial program 100.0%
Taylor expanded in x around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6449.9
Applied rewrites49.9%
if -5.00000000000000029e-289 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6448.5
Applied rewrites48.5%
(FPCore (x y z) :precision binary64 (+ y x))
double code(double x, double y, double z) {
return y + x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y + x
end function
public static double code(double x, double y, double z) {
return y + x;
}
def code(x, y, z): return y + x
function code(x, y, z) return Float64(y + x) end
function tmp = code(x, y, z) tmp = y + x; end
code[x_, y_, z_] := N[(y + x), $MachinePrecision]
\begin{array}{l}
\\
y + x
\end{array}
Initial program 100.0%
Taylor expanded in z around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
lower-+.f6450.1
Applied rewrites50.1%
Taylor expanded in x around inf
Applied rewrites26.8%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6451.4
Applied rewrites51.4%
herbie shell --seed 2024296
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
:precision binary64
(* (+ x y) (+ z 1.0)))