Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G

Percentage Accurate: 100.0% → 100.0%
Time: 4.4s
Alternatives: 6
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \left(x + y\right) \cdot \left(z + 1\right) \end{array} \]
(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}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 6 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x + y\right) \cdot \left(z + 1\right) \end{array} \]
(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}

Alternative 1: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(x + y\right) \cdot \left(z + 1\right) \end{array} \]
(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}
Derivation
  1. Initial program 100.0%

    \[\left(x + y\right) \cdot \left(z + 1\right) \]
  2. Add Preprocessing
  3. Add Preprocessing

Alternative 2: 75.0% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z + 1 \leq -500:\\ \;\;\;\;z \cdot y\\ \mathbf{elif}\;z + 1 \leq 2:\\ \;\;\;\;y + x\\ \mathbf{elif}\;z + 1 \leq 2 \cdot 10^{+60}:\\ \;\;\;\;z \cdot y\\ \mathbf{else}:\\ \;\;\;\;z \cdot x\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= (+ z 1.0) -500.0)
   (* z y)
   (if (<= (+ z 1.0) 2.0) (+ y x) (if (<= (+ z 1.0) 2e+60) (* z y) (* z x)))))
double code(double x, double y, double z) {
	double tmp;
	if ((z + 1.0) <= -500.0) {
		tmp = z * y;
	} else if ((z + 1.0) <= 2.0) {
		tmp = y + x;
	} else if ((z + 1.0) <= 2e+60) {
		tmp = z * y;
	} 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 ((z + 1.0d0) <= (-500.0d0)) then
        tmp = z * y
    else if ((z + 1.0d0) <= 2.0d0) then
        tmp = y + x
    else if ((z + 1.0d0) <= 2d+60) then
        tmp = z * y
    else
        tmp = z * x
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((z + 1.0) <= -500.0) {
		tmp = z * y;
	} else if ((z + 1.0) <= 2.0) {
		tmp = y + x;
	} else if ((z + 1.0) <= 2e+60) {
		tmp = z * y;
	} else {
		tmp = z * x;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (z + 1.0) <= -500.0:
		tmp = z * y
	elif (z + 1.0) <= 2.0:
		tmp = y + x
	elif (z + 1.0) <= 2e+60:
		tmp = z * y
	else:
		tmp = z * x
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (Float64(z + 1.0) <= -500.0)
		tmp = Float64(z * y);
	elseif (Float64(z + 1.0) <= 2.0)
		tmp = Float64(y + x);
	elseif (Float64(z + 1.0) <= 2e+60)
		tmp = Float64(z * y);
	else
		tmp = Float64(z * x);
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((z + 1.0) <= -500.0)
		tmp = z * y;
	elseif ((z + 1.0) <= 2.0)
		tmp = y + x;
	elseif ((z + 1.0) <= 2e+60)
		tmp = z * y;
	else
		tmp = z * x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -500.0], N[(z * y), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 2.0], N[(y + x), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 2e+60], N[(z * y), $MachinePrecision], N[(z * x), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z + 1 \leq -500:\\
\;\;\;\;z \cdot y\\

\mathbf{elif}\;z + 1 \leq 2:\\
\;\;\;\;y + x\\

\mathbf{elif}\;z + 1 \leq 2 \cdot 10^{+60}:\\
\;\;\;\;z \cdot y\\

\mathbf{else}:\\
\;\;\;\;z \cdot x\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (+.f64 z #s(literal 1 binary64)) < -500 or 2 < (+.f64 z #s(literal 1 binary64)) < 1.9999999999999999e60

    1. Initial program 100.0%

      \[\left(x + y\right) \cdot \left(z + 1\right) \]
    2. Add Preprocessing
    3. Taylor expanded in z around inf

      \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
    4. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
      2. lower-*.f64N/A

        \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
      3. +-commutativeN/A

        \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
      4. lower-+.f6496.7

        \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
    5. Applied rewrites96.7%

      \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
    6. Taylor expanded in x around 0

      \[\leadsto y \cdot \color{blue}{z} \]
    7. Step-by-step derivation
      1. Applied rewrites61.8%

        \[\leadsto z \cdot \color{blue}{y} \]

      if -500 < (+.f64 z #s(literal 1 binary64)) < 2

      1. Initial program 100.0%

        \[\left(x + y\right) \cdot \left(z + 1\right) \]
      2. Add Preprocessing
      3. Taylor expanded in z around inf

        \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
      4. Step-by-step derivation
        1. *-commutativeN/A

          \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
        2. lower-*.f64N/A

          \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
        3. +-commutativeN/A

          \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
        4. lower-+.f643.5

          \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
      5. Applied rewrites3.5%

        \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
      6. Taylor expanded in x around inf

        \[\leadsto x \cdot \color{blue}{z} \]
      7. Step-by-step derivation
        1. Applied rewrites3.3%

          \[\leadsto z \cdot \color{blue}{x} \]
        2. Taylor expanded in z around 0

          \[\leadsto \color{blue}{x + y} \]
        3. Step-by-step derivation
          1. +-commutativeN/A

            \[\leadsto \color{blue}{y + x} \]
          2. lower-+.f6497.1

            \[\leadsto \color{blue}{y + x} \]
        4. Applied rewrites97.1%

          \[\leadsto \color{blue}{y + x} \]

        if 1.9999999999999999e60 < (+.f64 z #s(literal 1 binary64))

        1. Initial program 100.0%

          \[\left(x + y\right) \cdot \left(z + 1\right) \]
        2. Add Preprocessing
        3. Taylor expanded in z around inf

          \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
        4. Step-by-step derivation
          1. *-commutativeN/A

            \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
          2. lower-*.f64N/A

            \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
          3. +-commutativeN/A

            \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
          4. lower-+.f64100.0

            \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
        5. Applied rewrites100.0%

          \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
        6. Taylor expanded in x around inf

          \[\leadsto x \cdot \color{blue}{z} \]
        7. Step-by-step derivation
          1. Applied rewrites33.7%

            \[\leadsto z \cdot \color{blue}{x} \]
        8. Recombined 3 regimes into one program.
        9. Add Preprocessing

        Alternative 3: 75.3% accurate, 0.5× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z + 1 \leq -500:\\ \;\;\;\;z \cdot y\\ \mathbf{elif}\;z + 1 \leq 1.002:\\ \;\;\;\;y + x\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(z, x, x\right)\\ \end{array} \end{array} \]
        (FPCore (x y z)
         :precision binary64
         (if (<= (+ z 1.0) -500.0)
           (* z y)
           (if (<= (+ z 1.0) 1.002) (+ y x) (fma z x x))))
        double code(double x, double y, double z) {
        	double tmp;
        	if ((z + 1.0) <= -500.0) {
        		tmp = z * y;
        	} else if ((z + 1.0) <= 1.002) {
        		tmp = y + x;
        	} else {
        		tmp = fma(z, x, x);
        	}
        	return tmp;
        }
        
        function code(x, y, z)
        	tmp = 0.0
        	if (Float64(z + 1.0) <= -500.0)
        		tmp = Float64(z * y);
        	elseif (Float64(z + 1.0) <= 1.002)
        		tmp = Float64(y + x);
        	else
        		tmp = fma(z, x, x);
        	end
        	return tmp
        end
        
        code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -500.0], N[(z * y), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 1.002], N[(y + x), $MachinePrecision], N[(z * x + x), $MachinePrecision]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        \mathbf{if}\;z + 1 \leq -500:\\
        \;\;\;\;z \cdot y\\
        
        \mathbf{elif}\;z + 1 \leq 1.002:\\
        \;\;\;\;y + x\\
        
        \mathbf{else}:\\
        \;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 3 regimes
        2. if (+.f64 z #s(literal 1 binary64)) < -500

          1. Initial program 100.0%

            \[\left(x + y\right) \cdot \left(z + 1\right) \]
          2. Add Preprocessing
          3. Taylor expanded in z around inf

            \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
          4. Step-by-step derivation
            1. *-commutativeN/A

              \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
            2. lower-*.f64N/A

              \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
            3. +-commutativeN/A

              \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
            4. lower-+.f6497.8

              \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
          5. Applied rewrites97.8%

            \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
          6. Taylor expanded in x around 0

            \[\leadsto y \cdot \color{blue}{z} \]
          7. Step-by-step derivation
            1. Applied rewrites61.2%

              \[\leadsto z \cdot \color{blue}{y} \]

            if -500 < (+.f64 z #s(literal 1 binary64)) < 1.002

            1. Initial program 100.0%

              \[\left(x + y\right) \cdot \left(z + 1\right) \]
            2. Add Preprocessing
            3. Taylor expanded in z around inf

              \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
            4. Step-by-step derivation
              1. *-commutativeN/A

                \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
              2. lower-*.f64N/A

                \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
              3. +-commutativeN/A

                \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
              4. lower-+.f643.4

                \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
            5. Applied rewrites3.4%

              \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
            6. Taylor expanded in x around inf

              \[\leadsto x \cdot \color{blue}{z} \]
            7. Step-by-step derivation
              1. Applied rewrites3.1%

                \[\leadsto z \cdot \color{blue}{x} \]
              2. Taylor expanded in z around 0

                \[\leadsto \color{blue}{x + y} \]
              3. Step-by-step derivation
                1. +-commutativeN/A

                  \[\leadsto \color{blue}{y + x} \]
                2. lower-+.f6498.2

                  \[\leadsto \color{blue}{y + x} \]
              4. Applied rewrites98.2%

                \[\leadsto \color{blue}{y + x} \]

              if 1.002 < (+.f64 z #s(literal 1 binary64))

              1. Initial program 100.0%

                \[\left(x + y\right) \cdot \left(z + 1\right) \]
              2. Add Preprocessing
              3. Taylor expanded in x around inf

                \[\leadsto \color{blue}{x \cdot \left(1 + z\right)} \]
              4. Step-by-step derivation
                1. +-commutativeN/A

                  \[\leadsto x \cdot \color{blue}{\left(z + 1\right)} \]
                2. distribute-rgt-inN/A

                  \[\leadsto \color{blue}{z \cdot x + 1 \cdot x} \]
                3. *-lft-identityN/A

                  \[\leadsto z \cdot x + \color{blue}{x} \]
                4. lower-fma.f6435.6

                  \[\leadsto \color{blue}{\mathsf{fma}\left(z, x, x\right)} \]
              5. Applied rewrites35.6%

                \[\leadsto \color{blue}{\mathsf{fma}\left(z, x, x\right)} \]
            8. Recombined 3 regimes into one program.
            9. Add Preprocessing

            Alternative 4: 75.1% accurate, 0.5× speedup?

            \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z + 1 \leq -500 \lor \neg \left(z + 1 \leq 20000\right):\\ \;\;\;\;z \cdot x\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \end{array} \]
            (FPCore (x y z)
             :precision binary64
             (if (or (<= (+ z 1.0) -500.0) (not (<= (+ z 1.0) 20000.0))) (* z x) (+ y x)))
            double code(double x, double y, double z) {
            	double tmp;
            	if (((z + 1.0) <= -500.0) || !((z + 1.0) <= 20000.0)) {
            		tmp = z * x;
            	} 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) <= (-500.0d0)) .or. (.not. ((z + 1.0d0) <= 20000.0d0))) then
                    tmp = z * x
                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) <= -500.0) || !((z + 1.0) <= 20000.0)) {
            		tmp = z * x;
            	} else {
            		tmp = y + x;
            	}
            	return tmp;
            }
            
            def code(x, y, z):
            	tmp = 0
            	if ((z + 1.0) <= -500.0) or not ((z + 1.0) <= 20000.0):
            		tmp = z * x
            	else:
            		tmp = y + x
            	return tmp
            
            function code(x, y, z)
            	tmp = 0.0
            	if ((Float64(z + 1.0) <= -500.0) || !(Float64(z + 1.0) <= 20000.0))
            		tmp = Float64(z * x);
            	else
            		tmp = Float64(y + x);
            	end
            	return tmp
            end
            
            function tmp_2 = code(x, y, z)
            	tmp = 0.0;
            	if (((z + 1.0) <= -500.0) || ~(((z + 1.0) <= 20000.0)))
            		tmp = z * x;
            	else
            		tmp = y + x;
            	end
            	tmp_2 = tmp;
            end
            
            code[x_, y_, z_] := If[Or[LessEqual[N[(z + 1.0), $MachinePrecision], -500.0], N[Not[LessEqual[N[(z + 1.0), $MachinePrecision], 20000.0]], $MachinePrecision]], N[(z * x), $MachinePrecision], N[(y + x), $MachinePrecision]]
            
            \begin{array}{l}
            
            \\
            \begin{array}{l}
            \mathbf{if}\;z + 1 \leq -500 \lor \neg \left(z + 1 \leq 20000\right):\\
            \;\;\;\;z \cdot x\\
            
            \mathbf{else}:\\
            \;\;\;\;y + x\\
            
            
            \end{array}
            \end{array}
            
            Derivation
            1. Split input into 2 regimes
            2. if (+.f64 z #s(literal 1 binary64)) < -500 or 2e4 < (+.f64 z #s(literal 1 binary64))

              1. Initial program 100.0%

                \[\left(x + y\right) \cdot \left(z + 1\right) \]
              2. Add Preprocessing
              3. Taylor expanded in z around inf

                \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
              4. Step-by-step derivation
                1. *-commutativeN/A

                  \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
                2. lower-*.f64N/A

                  \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
                3. +-commutativeN/A

                  \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
                4. lower-+.f6497.9

                  \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
              5. Applied rewrites97.9%

                \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
              6. Taylor expanded in x around inf

                \[\leadsto x \cdot \color{blue}{z} \]
              7. Step-by-step derivation
                1. Applied rewrites39.4%

                  \[\leadsto z \cdot \color{blue}{x} \]

                if -500 < (+.f64 z #s(literal 1 binary64)) < 2e4

                1. Initial program 100.0%

                  \[\left(x + y\right) \cdot \left(z + 1\right) \]
                2. Add Preprocessing
                3. Taylor expanded in z around inf

                  \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
                4. Step-by-step derivation
                  1. *-commutativeN/A

                    \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
                  2. lower-*.f64N/A

                    \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
                  3. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
                  4. lower-+.f644.3

                    \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
                5. Applied rewrites4.3%

                  \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
                6. Taylor expanded in x around inf

                  \[\leadsto x \cdot \color{blue}{z} \]
                7. Step-by-step derivation
                  1. Applied rewrites3.2%

                    \[\leadsto z \cdot \color{blue}{x} \]
                  2. Taylor expanded in z around 0

                    \[\leadsto \color{blue}{x + y} \]
                  3. Step-by-step derivation
                    1. +-commutativeN/A

                      \[\leadsto \color{blue}{y + x} \]
                    2. lower-+.f6496.5

                      \[\leadsto \color{blue}{y + x} \]
                  4. Applied rewrites96.5%

                    \[\leadsto \color{blue}{y + x} \]
                8. Recombined 2 regimes into one program.
                9. Final simplification68.8%

                  \[\leadsto \begin{array}{l} \mathbf{if}\;z + 1 \leq -500 \lor \neg \left(z + 1 \leq 20000\right):\\ \;\;\;\;z \cdot x\\ \mathbf{else}:\\ \;\;\;\;y + x\\ \end{array} \]
                10. Add Preprocessing

                Alternative 5: 51.4% accurate, 0.7× speedup?

                \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x + y \leq -1 \cdot 10^{-293}:\\ \;\;\;\;\mathsf{fma}\left(z, x, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(z, y, y\right)\\ \end{array} \end{array} \]
                (FPCore (x y z)
                 :precision binary64
                 (if (<= (+ x y) -1e-293) (fma z x x) (fma z y y)))
                double code(double x, double y, double z) {
                	double tmp;
                	if ((x + y) <= -1e-293) {
                		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) <= -1e-293)
                		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], -1e-293], N[(z * x + x), $MachinePrecision], N[(z * y + y), $MachinePrecision]]
                
                \begin{array}{l}
                
                \\
                \begin{array}{l}
                \mathbf{if}\;x + y \leq -1 \cdot 10^{-293}:\\
                \;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
                
                \mathbf{else}:\\
                \;\;\;\;\mathsf{fma}\left(z, y, y\right)\\
                
                
                \end{array}
                \end{array}
                
                Derivation
                1. Split input into 2 regimes
                2. if (+.f64 x y) < -1.0000000000000001e-293

                  1. Initial program 100.0%

                    \[\left(x + y\right) \cdot \left(z + 1\right) \]
                  2. Add Preprocessing
                  3. Taylor expanded in x around inf

                    \[\leadsto \color{blue}{x \cdot \left(1 + z\right)} \]
                  4. Step-by-step derivation
                    1. +-commutativeN/A

                      \[\leadsto x \cdot \color{blue}{\left(z + 1\right)} \]
                    2. distribute-rgt-inN/A

                      \[\leadsto \color{blue}{z \cdot x + 1 \cdot x} \]
                    3. *-lft-identityN/A

                      \[\leadsto z \cdot x + \color{blue}{x} \]
                    4. lower-fma.f6443.0

                      \[\leadsto \color{blue}{\mathsf{fma}\left(z, x, x\right)} \]
                  5. Applied rewrites43.0%

                    \[\leadsto \color{blue}{\mathsf{fma}\left(z, x, x\right)} \]

                  if -1.0000000000000001e-293 < (+.f64 x y)

                  1. Initial program 100.0%

                    \[\left(x + y\right) \cdot \left(z + 1\right) \]
                  2. Add Preprocessing
                  3. Taylor expanded in x around 0

                    \[\leadsto \color{blue}{y \cdot \left(1 + z\right)} \]
                  4. Step-by-step derivation
                    1. +-commutativeN/A

                      \[\leadsto y \cdot \color{blue}{\left(z + 1\right)} \]
                    2. distribute-rgt-inN/A

                      \[\leadsto \color{blue}{z \cdot y + 1 \cdot y} \]
                    3. *-lft-identityN/A

                      \[\leadsto z \cdot y + \color{blue}{y} \]
                    4. lower-fma.f6449.1

                      \[\leadsto \color{blue}{\mathsf{fma}\left(z, y, y\right)} \]
                  5. Applied rewrites49.1%

                    \[\leadsto \color{blue}{\mathsf{fma}\left(z, y, y\right)} \]
                3. Recombined 2 regimes into one program.
                4. Add Preprocessing

                Alternative 6: 51.1% accurate, 3.0× speedup?

                \[\begin{array}{l} \\ y + x \end{array} \]
                (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}
                
                Derivation
                1. Initial program 100.0%

                  \[\left(x + y\right) \cdot \left(z + 1\right) \]
                2. Add Preprocessing
                3. Taylor expanded in z around inf

                  \[\leadsto \color{blue}{z \cdot \left(x + y\right)} \]
                4. Step-by-step derivation
                  1. *-commutativeN/A

                    \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
                  2. lower-*.f64N/A

                    \[\leadsto \color{blue}{\left(x + y\right) \cdot z} \]
                  3. +-commutativeN/A

                    \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
                  4. lower-+.f6449.6

                    \[\leadsto \color{blue}{\left(y + x\right)} \cdot z \]
                5. Applied rewrites49.6%

                  \[\leadsto \color{blue}{\left(y + x\right) \cdot z} \]
                6. Taylor expanded in x around inf

                  \[\leadsto x \cdot \color{blue}{z} \]
                7. Step-by-step derivation
                  1. Applied rewrites20.8%

                    \[\leadsto z \cdot \color{blue}{x} \]
                  2. Taylor expanded in z around 0

                    \[\leadsto \color{blue}{x + y} \]
                  3. Step-by-step derivation
                    1. +-commutativeN/A

                      \[\leadsto \color{blue}{y + x} \]
                    2. lower-+.f6451.3

                      \[\leadsto \color{blue}{y + x} \]
                  4. Applied rewrites51.3%

                    \[\leadsto \color{blue}{y + x} \]
                  5. Add Preprocessing

                  Reproduce

                  ?
                  herbie shell --seed 2024313 
                  (FPCore (x y z)
                    :name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
                    :precision binary64
                    (* (+ x y) (+ z 1.0)))