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

Percentage Accurate: 100.0% → 100.0%
Time: 4.6s
Alternatives: 8
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 8 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: 41.7% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x + y \leq -1 \cdot 10^{+219}:\\ \;\;\;\;x \cdot z\\ \mathbf{elif}\;x + y \leq -5 \cdot 10^{+155}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;x + y \leq -2 \cdot 10^{-257}:\\ \;\;\;\;x \cdot z\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, y\right)\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= (+ x y) -1e+219)
   (* x z)
   (if (<= (+ x y) -5e+155)
     (+ x y)
     (if (<= (+ x y) -2e-257) (* x z) (fma y z y)))))
double code(double x, double y, double z) {
	double tmp;
	if ((x + y) <= -1e+219) {
		tmp = x * z;
	} else if ((x + y) <= -5e+155) {
		tmp = x + y;
	} else if ((x + y) <= -2e-257) {
		tmp = x * z;
	} else {
		tmp = fma(y, z, y);
	}
	return tmp;
}
function code(x, y, z)
	tmp = 0.0
	if (Float64(x + y) <= -1e+219)
		tmp = Float64(x * z);
	elseif (Float64(x + y) <= -5e+155)
		tmp = Float64(x + y);
	elseif (Float64(x + y) <= -2e-257)
		tmp = Float64(x * z);
	else
		tmp = fma(y, z, y);
	end
	return tmp
end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -1e+219], N[(x * z), $MachinePrecision], If[LessEqual[N[(x + y), $MachinePrecision], -5e+155], N[(x + y), $MachinePrecision], If[LessEqual[N[(x + y), $MachinePrecision], -2e-257], N[(x * z), $MachinePrecision], N[(y * z + y), $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -1 \cdot 10^{+219}:\\
\;\;\;\;x \cdot z\\

\mathbf{elif}\;x + y \leq -5 \cdot 10^{+155}:\\
\;\;\;\;x + y\\

\mathbf{elif}\;x + y \leq -2 \cdot 10^{-257}:\\
\;\;\;\;x \cdot z\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(y, z, y\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (+.f64 x y) < -9.99999999999999965e218 or -4.9999999999999999e155 < (+.f64 x y) < -2e-257

    1. Initial program 100.0%

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

      \[\leadsto \left(x + y\right) \cdot \color{blue}{z} \]
    4. Step-by-step derivation
      1. Simplified61.1%

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

        \[\leadsto \color{blue}{x} \cdot z \]
      3. Step-by-step derivation
        1. Simplified31.1%

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

        if -9.99999999999999965e218 < (+.f64 x y) < -4.9999999999999999e155

        1. Initial program 100.0%

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

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

            \[\leadsto \color{blue}{y + x} \]
          2. +-lowering-+.f6477.7

            \[\leadsto \color{blue}{y + x} \]
        5. Simplified77.7%

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

        if -2e-257 < (+.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-lft-inN/A

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

            \[\leadsto y \cdot z + \color{blue}{y} \]
          4. accelerator-lowering-fma.f6447.2

            \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, y\right)} \]
        5. Simplified47.2%

          \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, y\right)} \]
      4. Recombined 3 regimes into one program.
      5. Final simplification43.7%

        \[\leadsto \begin{array}{l} \mathbf{if}\;x + y \leq -1 \cdot 10^{+219}:\\ \;\;\;\;x \cdot z\\ \mathbf{elif}\;x + y \leq -5 \cdot 10^{+155}:\\ \;\;\;\;x + y\\ \mathbf{elif}\;x + y \leq -2 \cdot 10^{-257}:\\ \;\;\;\;x \cdot z\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, y\right)\\ \end{array} \]
      6. Add Preprocessing

      Alternative 3: 75.1% accurate, 0.4× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z + 1 \leq -1 \cdot 10^{+201}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;z + 1 \leq -400:\\ \;\;\;\;x \cdot z\\ \mathbf{elif}\;z + 1 \leq 50000000:\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x \cdot z\\ \end{array} \end{array} \]
      (FPCore (x y z)
       :precision binary64
       (if (<= (+ z 1.0) -1e+201)
         (* y z)
         (if (<= (+ z 1.0) -400.0)
           (* x z)
           (if (<= (+ z 1.0) 50000000.0) (+ x y) (* x z)))))
      double code(double x, double y, double z) {
      	double tmp;
      	if ((z + 1.0) <= -1e+201) {
      		tmp = y * z;
      	} else if ((z + 1.0) <= -400.0) {
      		tmp = x * z;
      	} else if ((z + 1.0) <= 50000000.0) {
      		tmp = x + y;
      	} 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) <= (-1d+201)) then
              tmp = y * z
          else if ((z + 1.0d0) <= (-400.0d0)) then
              tmp = x * z
          else if ((z + 1.0d0) <= 50000000.0d0) then
              tmp = x + y
          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) <= -1e+201) {
      		tmp = y * z;
      	} else if ((z + 1.0) <= -400.0) {
      		tmp = x * z;
      	} else if ((z + 1.0) <= 50000000.0) {
      		tmp = x + y;
      	} else {
      		tmp = x * z;
      	}
      	return tmp;
      }
      
      def code(x, y, z):
      	tmp = 0
      	if (z + 1.0) <= -1e+201:
      		tmp = y * z
      	elif (z + 1.0) <= -400.0:
      		tmp = x * z
      	elif (z + 1.0) <= 50000000.0:
      		tmp = x + y
      	else:
      		tmp = x * z
      	return tmp
      
      function code(x, y, z)
      	tmp = 0.0
      	if (Float64(z + 1.0) <= -1e+201)
      		tmp = Float64(y * z);
      	elseif (Float64(z + 1.0) <= -400.0)
      		tmp = Float64(x * z);
      	elseif (Float64(z + 1.0) <= 50000000.0)
      		tmp = Float64(x + y);
      	else
      		tmp = Float64(x * z);
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y, z)
      	tmp = 0.0;
      	if ((z + 1.0) <= -1e+201)
      		tmp = y * z;
      	elseif ((z + 1.0) <= -400.0)
      		tmp = x * z;
      	elseif ((z + 1.0) <= 50000000.0)
      		tmp = x + y;
      	else
      		tmp = x * z;
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -1e+201], N[(y * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], -400.0], N[(x * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 50000000.0], N[(x + y), $MachinePrecision], N[(x * z), $MachinePrecision]]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;z + 1 \leq -1 \cdot 10^{+201}:\\
      \;\;\;\;y \cdot z\\
      
      \mathbf{elif}\;z + 1 \leq -400:\\
      \;\;\;\;x \cdot z\\
      
      \mathbf{elif}\;z + 1 \leq 50000000:\\
      \;\;\;\;x + y\\
      
      \mathbf{else}:\\
      \;\;\;\;x \cdot z\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 3 regimes
      2. if (+.f64 z #s(literal 1 binary64)) < -1.00000000000000004e201

        1. Initial program 100.0%

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

          \[\leadsto \left(x + y\right) \cdot \color{blue}{z} \]
        4. Step-by-step derivation
          1. Simplified100.0%

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

            \[\leadsto \color{blue}{y} \cdot z \]
          3. Step-by-step derivation
            1. Simplified57.0%

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

            if -1.00000000000000004e201 < (+.f64 z #s(literal 1 binary64)) < -400 or 5e7 < (+.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

              \[\leadsto \left(x + y\right) \cdot \color{blue}{z} \]
            4. Step-by-step derivation
              1. Simplified97.7%

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

                \[\leadsto \color{blue}{x} \cdot z \]
              3. Step-by-step derivation
                1. Simplified50.9%

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

                if -400 < (+.f64 z #s(literal 1 binary64)) < 5e7

                1. Initial program 100.0%

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

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

                    \[\leadsto \color{blue}{y + x} \]
                  2. +-lowering-+.f6495.6

                    \[\leadsto \color{blue}{y + x} \]
                5. Simplified95.6%

                  \[\leadsto \color{blue}{y + x} \]
              4. Recombined 3 regimes into one program.
              5. Final simplification75.6%

                \[\leadsto \begin{array}{l} \mathbf{if}\;z + 1 \leq -1 \cdot 10^{+201}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;z + 1 \leq -400:\\ \;\;\;\;x \cdot z\\ \mathbf{elif}\;z + 1 \leq 50000000:\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x \cdot z\\ \end{array} \]
              6. Add Preprocessing

              Alternative 4: 75.4% accurate, 0.5× speedup?

              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z + 1 \leq -400:\\ \;\;\;\;x \cdot z\\ \mathbf{elif}\;z + 1 \leq 50000000:\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x \cdot z\\ \end{array} \end{array} \]
              (FPCore (x y z)
               :precision binary64
               (if (<= (+ z 1.0) -400.0)
                 (* x z)
                 (if (<= (+ z 1.0) 50000000.0) (+ x y) (* x z))))
              double code(double x, double y, double z) {
              	double tmp;
              	if ((z + 1.0) <= -400.0) {
              		tmp = x * z;
              	} else if ((z + 1.0) <= 50000000.0) {
              		tmp = x + y;
              	} 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) <= (-400.0d0)) then
                      tmp = x * z
                  else if ((z + 1.0d0) <= 50000000.0d0) then
                      tmp = x + y
                  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) <= -400.0) {
              		tmp = x * z;
              	} else if ((z + 1.0) <= 50000000.0) {
              		tmp = x + y;
              	} else {
              		tmp = x * z;
              	}
              	return tmp;
              }
              
              def code(x, y, z):
              	tmp = 0
              	if (z + 1.0) <= -400.0:
              		tmp = x * z
              	elif (z + 1.0) <= 50000000.0:
              		tmp = x + y
              	else:
              		tmp = x * z
              	return tmp
              
              function code(x, y, z)
              	tmp = 0.0
              	if (Float64(z + 1.0) <= -400.0)
              		tmp = Float64(x * z);
              	elseif (Float64(z + 1.0) <= 50000000.0)
              		tmp = Float64(x + y);
              	else
              		tmp = Float64(x * z);
              	end
              	return tmp
              end
              
              function tmp_2 = code(x, y, z)
              	tmp = 0.0;
              	if ((z + 1.0) <= -400.0)
              		tmp = x * z;
              	elseif ((z + 1.0) <= 50000000.0)
              		tmp = x + y;
              	else
              		tmp = x * z;
              	end
              	tmp_2 = tmp;
              end
              
              code[x_, y_, z_] := If[LessEqual[N[(z + 1.0), $MachinePrecision], -400.0], N[(x * z), $MachinePrecision], If[LessEqual[N[(z + 1.0), $MachinePrecision], 50000000.0], N[(x + y), $MachinePrecision], N[(x * z), $MachinePrecision]]]
              
              \begin{array}{l}
              
              \\
              \begin{array}{l}
              \mathbf{if}\;z + 1 \leq -400:\\
              \;\;\;\;x \cdot z\\
              
              \mathbf{elif}\;z + 1 \leq 50000000:\\
              \;\;\;\;x + y\\
              
              \mathbf{else}:\\
              \;\;\;\;x \cdot z\\
              
              
              \end{array}
              \end{array}
              
              Derivation
              1. Split input into 2 regimes
              2. if (+.f64 z #s(literal 1 binary64)) < -400 or 5e7 < (+.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

                  \[\leadsto \left(x + y\right) \cdot \color{blue}{z} \]
                4. Step-by-step derivation
                  1. Simplified98.2%

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

                    \[\leadsto \color{blue}{x} \cdot z \]
                  3. Step-by-step derivation
                    1. Simplified50.5%

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

                    if -400 < (+.f64 z #s(literal 1 binary64)) < 5e7

                    1. Initial program 100.0%

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

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

                        \[\leadsto \color{blue}{y + x} \]
                      2. +-lowering-+.f6495.6

                        \[\leadsto \color{blue}{y + x} \]
                    5. Simplified95.6%

                      \[\leadsto \color{blue}{y + x} \]
                  4. Recombined 2 regimes into one program.
                  5. Final simplification74.8%

                    \[\leadsto \begin{array}{l} \mathbf{if}\;z + 1 \leq -400:\\ \;\;\;\;x \cdot z\\ \mathbf{elif}\;z + 1 \leq 50000000:\\ \;\;\;\;x + y\\ \mathbf{else}:\\ \;\;\;\;x \cdot z\\ \end{array} \]
                  6. Add Preprocessing

                  Alternative 5: 26.3% accurate, 0.7× speedup?

                  \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\left(x + y\right) \cdot \left(z + 1\right) \leq -1 \cdot 10^{-209}:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;y\\ \end{array} \end{array} \]
                  (FPCore (x y z)
                   :precision binary64
                   (if (<= (* (+ x y) (+ z 1.0)) -1e-209) x y))
                  double code(double x, double y, double z) {
                  	double tmp;
                  	if (((x + y) * (z + 1.0)) <= -1e-209) {
                  		tmp = x;
                  	} else {
                  		tmp = 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 + y) * (z + 1.0d0)) <= (-1d-209)) then
                          tmp = x
                      else
                          tmp = y
                      end if
                      code = tmp
                  end function
                  
                  public static double code(double x, double y, double z) {
                  	double tmp;
                  	if (((x + y) * (z + 1.0)) <= -1e-209) {
                  		tmp = x;
                  	} else {
                  		tmp = y;
                  	}
                  	return tmp;
                  }
                  
                  def code(x, y, z):
                  	tmp = 0
                  	if ((x + y) * (z + 1.0)) <= -1e-209:
                  		tmp = x
                  	else:
                  		tmp = y
                  	return tmp
                  
                  function code(x, y, z)
                  	tmp = 0.0
                  	if (Float64(Float64(x + y) * Float64(z + 1.0)) <= -1e-209)
                  		tmp = x;
                  	else
                  		tmp = y;
                  	end
                  	return tmp
                  end
                  
                  function tmp_2 = code(x, y, z)
                  	tmp = 0.0;
                  	if (((x + y) * (z + 1.0)) <= -1e-209)
                  		tmp = x;
                  	else
                  		tmp = y;
                  	end
                  	tmp_2 = tmp;
                  end
                  
                  code[x_, y_, z_] := If[LessEqual[N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision], -1e-209], x, y]
                  
                  \begin{array}{l}
                  
                  \\
                  \begin{array}{l}
                  \mathbf{if}\;\left(x + y\right) \cdot \left(z + 1\right) \leq -1 \cdot 10^{-209}:\\
                  \;\;\;\;x\\
                  
                  \mathbf{else}:\\
                  \;\;\;\;y\\
                  
                  
                  \end{array}
                  \end{array}
                  
                  Derivation
                  1. Split input into 2 regimes
                  2. if (*.f64 (+.f64 x y) (+.f64 z #s(literal 1 binary64))) < -1e-209

                    1. Initial program 100.0%

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

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

                        \[\leadsto \color{blue}{y + x} \]
                      2. +-lowering-+.f6449.1

                        \[\leadsto \color{blue}{y + x} \]
                    5. Simplified49.1%

                      \[\leadsto \color{blue}{y + x} \]
                    6. Taylor expanded in y around 0

                      \[\leadsto \color{blue}{x} \]
                    7. Step-by-step derivation
                      1. Simplified23.4%

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

                      if -1e-209 < (*.f64 (+.f64 x y) (+.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 0

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

                          \[\leadsto \color{blue}{y + x} \]
                        2. +-lowering-+.f6456.2

                          \[\leadsto \color{blue}{y + x} \]
                      5. Simplified56.2%

                        \[\leadsto \color{blue}{y + x} \]
                      6. Taylor expanded in y around inf

                        \[\leadsto \color{blue}{y} \]
                      7. Step-by-step derivation
                        1. Simplified26.9%

                          \[\leadsto \color{blue}{y} \]
                      8. Recombined 2 regimes into one program.
                      9. Add Preprocessing

                      Alternative 6: 52.0% accurate, 0.7× speedup?

                      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x + y \leq -2 \cdot 10^{-257}:\\ \;\;\;\;\mathsf{fma}\left(z, x, x\right)\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(y, z, y\right)\\ \end{array} \end{array} \]
                      (FPCore (x y z)
                       :precision binary64
                       (if (<= (+ x y) -2e-257) (fma z x x) (fma y z y)))
                      double code(double x, double y, double z) {
                      	double tmp;
                      	if ((x + y) <= -2e-257) {
                      		tmp = fma(z, x, x);
                      	} else {
                      		tmp = fma(y, z, y);
                      	}
                      	return tmp;
                      }
                      
                      function code(x, y, z)
                      	tmp = 0.0
                      	if (Float64(x + y) <= -2e-257)
                      		tmp = fma(z, x, x);
                      	else
                      		tmp = fma(y, z, y);
                      	end
                      	return tmp
                      end
                      
                      code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -2e-257], N[(z * x + x), $MachinePrecision], N[(y * z + y), $MachinePrecision]]
                      
                      \begin{array}{l}
                      
                      \\
                      \begin{array}{l}
                      \mathbf{if}\;x + y \leq -2 \cdot 10^{-257}:\\
                      \;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
                      
                      \mathbf{else}:\\
                      \;\;\;\;\mathsf{fma}\left(y, z, y\right)\\
                      
                      
                      \end{array}
                      \end{array}
                      
                      Derivation
                      1. Split input into 2 regimes
                      2. if (+.f64 x y) < -2e-257

                        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. accelerator-lowering-fma.f6448.3

                            \[\leadsto \color{blue}{\mathsf{fma}\left(z, x, x\right)} \]
                        5. Simplified48.3%

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

                        if -2e-257 < (+.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-lft-inN/A

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

                            \[\leadsto y \cdot z + \color{blue}{y} \]
                          4. accelerator-lowering-fma.f6447.2

                            \[\leadsto \color{blue}{\mathsf{fma}\left(y, z, y\right)} \]
                        5. Simplified47.2%

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

                      Alternative 7: 50.8% accurate, 3.0× speedup?

                      \[\begin{array}{l} \\ x + y \end{array} \]
                      (FPCore (x y z) :precision binary64 (+ x y))
                      double code(double x, double y, double z) {
                      	return 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 + y
                      end function
                      
                      public static double code(double x, double y, double z) {
                      	return x + y;
                      }
                      
                      def code(x, y, z):
                      	return x + y
                      
                      function code(x, y, z)
                      	return Float64(x + y)
                      end
                      
                      function tmp = code(x, y, z)
                      	tmp = x + y;
                      end
                      
                      code[x_, y_, z_] := N[(x + y), $MachinePrecision]
                      
                      \begin{array}{l}
                      
                      \\
                      x + y
                      \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 0

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

                          \[\leadsto \color{blue}{y + x} \]
                        2. +-lowering-+.f6453.0

                          \[\leadsto \color{blue}{y + x} \]
                      5. Simplified53.0%

                        \[\leadsto \color{blue}{y + x} \]
                      6. Final simplification53.0%

                        \[\leadsto x + y \]
                      7. Add Preprocessing

                      Alternative 8: 26.3% accurate, 12.0× speedup?

                      \[\begin{array}{l} \\ x \end{array} \]
                      (FPCore (x y z) :precision binary64 x)
                      double code(double x, double y, double z) {
                      	return x;
                      }
                      
                      real(8) function code(x, y, z)
                          real(8), intent (in) :: x
                          real(8), intent (in) :: y
                          real(8), intent (in) :: z
                          code = x
                      end function
                      
                      public static double code(double x, double y, double z) {
                      	return x;
                      }
                      
                      def code(x, y, z):
                      	return x
                      
                      function code(x, y, z)
                      	return x
                      end
                      
                      function tmp = code(x, y, z)
                      	tmp = x;
                      end
                      
                      code[x_, y_, z_] := x
                      
                      \begin{array}{l}
                      
                      \\
                      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 0

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

                          \[\leadsto \color{blue}{y + x} \]
                        2. +-lowering-+.f6453.0

                          \[\leadsto \color{blue}{y + x} \]
                      5. Simplified53.0%

                        \[\leadsto \color{blue}{y + x} \]
                      6. Taylor expanded in y around 0

                        \[\leadsto \color{blue}{x} \]
                      7. Step-by-step derivation
                        1. Simplified27.7%

                          \[\leadsto \color{blue}{x} \]
                        2. Add Preprocessing

                        Reproduce

                        ?
                        herbie shell --seed 2024196 
                        (FPCore (x y z)
                          :name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
                          :precision binary64
                          (* (+ x y) (+ z 1.0)))