Graphics.Rendering.Chart.Plot.Vectors:renderPlotVectors from Chart-1.5.3

Percentage Accurate: 77.9% → 100.0%

Time: 2.8s

Alternatives: 7

Speedup: 1.5×

Specification

Math

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

FPCore

(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))

C

double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = x + ((1.0d0 - x) * (1.0d0 - y))
end function

Java

public static double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}

Python

def code(x, y):
	return x + ((1.0 - x) * (1.0 - y))

Julia

function code(x, y)
	return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y)))
end

MATLAB

function tmp = code(x, y)
	tmp = x + ((1.0 - x) * (1.0 - y));
end

Wolfram

code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Initial Program: 77.9% accurate, 1.0× speedup

Math

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

FPCore

(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))

C

double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = x + ((1.0d0 - x) * (1.0d0 - y))
end function

Java

public static double code(double x, double y) {
	return x + ((1.0 - x) * (1.0 - y));
}

Python

def code(x, y):
	return x + ((1.0 - x) * (1.0 - y))

Julia

function code(x, y)
	return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y)))
end

MATLAB

function tmp = code(x, y)
	tmp = x + ((1.0 - x) * (1.0 - y));
end

Wolfram

code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Alternative 1: 100.0% accurate, 1.5× speedup

Math

\[\begin{array}{l} \\ \mathsf{fma}\left(y, x, 1 - y\right) \end{array} \]

FPCore

(FPCore (x y) :precision binary64 (fma y x (- 1.0 y)))

C

double code(double x, double y) {
	return fma(y, x, (1.0 - y));
}

Julia

function code(x, y)
	return fma(y, x, Float64(1.0 - y))
end

Wolfram

code[x_, y_] := N[(y * x + N[(1.0 - y), $MachinePrecision]), $MachinePrecision]

Derivation

1. Initial program 76.0%

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

3. Taylor expanded in y around 0

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

   1. associate-*r* N/A

      \[\leadsto 1 + \left(-1 \cdot y\right) \cdot \color{blue}{\left(1 - x\right)} \]

   2. mul-1-neg N/A

      \[\leadsto 1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(\color{blue}{1} - x\right) \]

   3. fp-cancel-sub-sign N/A

      \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

   4. lower--.f64 N/A

      \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

   5. *-commutative N/A

      \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

   6. lower-*.f64 N/A

      \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

   7. lift--.f64 100.0

      \[\leadsto 1 - \left(1 - x\right) \cdot y \]

5. Applied rewrites 100.0%

   \[\leadsto \color{blue}{1 - \left(1 - x\right) \cdot y} \]
6. Step-by-step derivation

   1. lift--.f64 N/A

      \[\leadsto 1 - \color{blue}{\left(1 - x\right) \cdot y} \]

   2. lift--.f64 N/A

      \[\leadsto 1 - \left(1 - x\right) \cdot y \]

   3. lift-*.f64 N/A

      \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

   4. *-lft-identity N/A

      \[\leadsto 1 - 1 \cdot \color{blue}{\left(\left(1 - x\right) \cdot y\right)} \]

   5. associate-*r* N/A

      \[\leadsto 1 - \left(1 \cdot \left(1 - x\right)\right) \cdot \color{blue}{y} \]

   6. distribute-lft-out-- N/A

      \[\leadsto 1 - \left(1 \cdot 1 - 1 \cdot x\right) \cdot y \]

   7. metadata-eval N/A

      \[\leadsto 1 - \left(1 - 1 \cdot x\right) \cdot y \]

   8. metadata-eval N/A

      \[\leadsto 1 - \left(1 - \left(\mathsf{neg}\left(-1\right)\right) \cdot x\right) \cdot y \]

   9. fp-cancel-sign-sub-inv N/A

      \[\leadsto 1 - \left(1 + -1 \cdot x\right) \cdot y \]

   10. +-commutative N/A

       \[\leadsto 1 - \left(-1 \cdot x + 1\right) \cdot y \]

   11. distribute-lft1-in N/A

       \[\leadsto 1 - \left(\left(-1 \cdot x\right) \cdot y + \color{blue}{y}\right) \]

   12. associate-*r* N/A

       \[\leadsto 1 - \left(-1 \cdot \left(x \cdot y\right) + y\right) \]

   13. associate--l- N/A

       \[\leadsto \left(1 - -1 \cdot \left(x \cdot y\right)\right) - \color{blue}{y} \]

   14. associate-*r* N/A

       \[\leadsto \left(1 - \left(-1 \cdot x\right) \cdot y\right) - y \]

   15. mul-1-neg N/A

       \[\leadsto \left(1 - \left(\mathsf{neg}\left(x\right)\right) \cdot y\right) - y \]

   16. fp-cancel-sign-sub-inv N/A

       \[\leadsto \left(1 + x \cdot y\right) - y \]

   17. +-commutative N/A

       \[\leadsto \left(x \cdot y + 1\right) - y \]

   18. associate--l+ N/A

       \[\leadsto x \cdot y + \color{blue}{\left(1 - y\right)} \]

   19. *-commutative N/A

       \[\leadsto y \cdot x + \left(\color{blue}{1} - y\right) \]

   20. lower-fma.f64 N/A

       \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

   21. lift--.f64 100.0

       \[\leadsto \mathsf{fma}\left(y, x, 1 - y\right) \]

7. Applied rewrites 100.0%

   \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]
8. Add Preprocessing

Alternative 2: 61.7% accurate, 0.3× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} t_0 := x + \left(1 - x\right) \cdot \left(1 - y\right)\\ \mathbf{if}\;t\_0 \leq -40000000000 \lor \neg \left(t\_0 \leq 2\right):\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (let* ((t_0 (+ x (* (- 1.0 x) (- 1.0 y)))))
   (if (or (<= t_0 -40000000000.0) (not (<= t_0 2.0))) (- y) 1.0)))

C

double code(double x, double y) {
	double t_0 = x + ((1.0 - x) * (1.0 - y));
	double tmp;
	if ((t_0 <= -40000000000.0) || !(t_0 <= 2.0)) {
		tmp = -y;
	} else {
		tmp = 1.0;
	}
	return tmp;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = x + ((1.0d0 - x) * (1.0d0 - y))
    if ((t_0 <= (-40000000000.0d0)) .or. (.not. (t_0 <= 2.0d0))) then
        tmp = -y
    else
        tmp = 1.0d0
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double t_0 = x + ((1.0 - x) * (1.0 - y));
	double tmp;
	if ((t_0 <= -40000000000.0) || !(t_0 <= 2.0)) {
		tmp = -y;
	} else {
		tmp = 1.0;
	}
	return tmp;
}

Python

def code(x, y):
	t_0 = x + ((1.0 - x) * (1.0 - y))
	tmp = 0
	if (t_0 <= -40000000000.0) or not (t_0 <= 2.0):
		tmp = -y
	else:
		tmp = 1.0
	return tmp

Julia

function code(x, y)
	t_0 = Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y)))
	tmp = 0.0
	if ((t_0 <= -40000000000.0) || !(t_0 <= 2.0))
		tmp = Float64(-y);
	else
		tmp = 1.0;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	t_0 = x + ((1.0 - x) * (1.0 - y));
	tmp = 0.0;
	if ((t_0 <= -40000000000.0) || ~((t_0 <= 2.0)))
		tmp = -y;
	else
		tmp = 1.0;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := Block[{t$95$0 = N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[t$95$0, -40000000000.0], N[Not[LessEqual[t$95$0, 2.0]], $MachinePrecision]], (-y), 1.0]]

Derivation

1. Split input into 2 regimes

2. if (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < -4e10 or 2 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y)))

   1. Initial program 99.8%

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

   3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{1 - y} \]
   4. Step-by-step derivation

      1. lift--.f64 43.1

         \[\leadsto 1 - \color{blue}{y} \]

   5. Applied rewrites 43.1%

      \[\leadsto \color{blue}{1 - y} \]

   6. Taylor expanded in y around inf

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

      1. mul-1-neg N/A

         \[\leadsto \mathsf{neg}\left(y\right) \]

      2. lift-neg.f64 42.3

         \[\leadsto -y \]

   8. Applied rewrites 42.3%

      \[\leadsto -y \]

   if -4e10 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < 2

   1. Initial program 51.0%

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

   3. Taylor expanded in y around 0

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

   5. Applied rewrites 76.4%

      \[\leadsto \color{blue}{1} \]
3. Recombined 2 regimes into one program.

4. Final simplification 59.0%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x + \left(1 - x\right) \cdot \left(1 - y\right) \leq -40000000000 \lor \neg \left(x + \left(1 - x\right) \cdot \left(1 - y\right) \leq 2\right):\\ \;\;\;\;-y\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \]
5. Add Preprocessing

Alternative 3: 87.1% accurate, 0.7× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.45 \cdot 10^{-58} \lor \neg \left(y \leq 0.059\right):\\ \;\;\;\;\left(x - 1\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (or (<= y -1.45e-58) (not (<= y 0.059))) (* (- x 1.0) y) (- 1.0 y)))

C

double code(double x, double y) {
	double tmp;
	if ((y <= -1.45e-58) || !(y <= 0.059)) {
		tmp = (x - 1.0) * y;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((y <= (-1.45d-58)) .or. (.not. (y <= 0.059d0))) then
        tmp = (x - 1.0d0) * y
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if ((y <= -1.45e-58) || !(y <= 0.059)) {
		tmp = (x - 1.0) * y;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if (y <= -1.45e-58) or not (y <= 0.059):
		tmp = (x - 1.0) * y
	else:
		tmp = 1.0 - y
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if ((y <= -1.45e-58) || !(y <= 0.059))
		tmp = Float64(Float64(x - 1.0) * y);
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((y <= -1.45e-58) || ~((y <= 0.059)))
		tmp = (x - 1.0) * y;
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[Or[LessEqual[y, -1.45e-58], N[Not[LessEqual[y, 0.059]], $MachinePrecision]], N[(N[(x - 1.0), $MachinePrecision] * y), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if y < -1.44999999999999995e-58 or 0.058999999999999997 < y

   1. Initial program 95.7%

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

   3. Taylor expanded in y around 0

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

      1. associate-*r* N/A

         \[\leadsto 1 + \left(-1 \cdot y\right) \cdot \color{blue}{\left(1 - x\right)} \]

      2. mul-1-neg N/A

         \[\leadsto 1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(\color{blue}{1} - x\right) \]

      3. fp-cancel-sub-sign N/A

         \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

      4. lower--.f64 N/A

         \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

      5. *-commutative N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      6. lower-*.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      7. lift--.f64 100.0

         \[\leadsto 1 - \left(1 - x\right) \cdot y \]

   5. Applied rewrites 100.0%

      \[\leadsto \color{blue}{1 - \left(1 - x\right) \cdot y} \]
   6. Step-by-step derivation

      1. lift--.f64 N/A

         \[\leadsto 1 - \color{blue}{\left(1 - x\right) \cdot y} \]

      2. lift--.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot y \]

      3. lift-*.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      4. *-lft-identity N/A

         \[\leadsto 1 - 1 \cdot \color{blue}{\left(\left(1 - x\right) \cdot y\right)} \]

      5. associate-*r* N/A

         \[\leadsto 1 - \left(1 \cdot \left(1 - x\right)\right) \cdot \color{blue}{y} \]

      6. distribute-lft-out-- N/A

         \[\leadsto 1 - \left(1 \cdot 1 - 1 \cdot x\right) \cdot y \]

      7. metadata-eval N/A

         \[\leadsto 1 - \left(1 - 1 \cdot x\right) \cdot y \]

      8. metadata-eval N/A

         \[\leadsto 1 - \left(1 - \left(\mathsf{neg}\left(-1\right)\right) \cdot x\right) \cdot y \]

      9. fp-cancel-sign-sub-inv N/A

         \[\leadsto 1 - \left(1 + -1 \cdot x\right) \cdot y \]

      10. +-commutative N/A

          \[\leadsto 1 - \left(-1 \cdot x + 1\right) \cdot y \]

      11. distribute-lft1-in N/A

          \[\leadsto 1 - \left(\left(-1 \cdot x\right) \cdot y + \color{blue}{y}\right) \]

      12. associate-*r* N/A

          \[\leadsto 1 - \left(-1 \cdot \left(x \cdot y\right) + y\right) \]

      13. associate--l- N/A

          \[\leadsto \left(1 - -1 \cdot \left(x \cdot y\right)\right) - \color{blue}{y} \]

      14. associate-*r* N/A

          \[\leadsto \left(1 - \left(-1 \cdot x\right) \cdot y\right) - y \]

      15. mul-1-neg N/A

          \[\leadsto \left(1 - \left(\mathsf{neg}\left(x\right)\right) \cdot y\right) - y \]

      16. fp-cancel-sign-sub-inv N/A

          \[\leadsto \left(1 + x \cdot y\right) - y \]

      17. +-commutative N/A

          \[\leadsto \left(x \cdot y + 1\right) - y \]

      18. associate--l+ N/A

          \[\leadsto x \cdot y + \color{blue}{\left(1 - y\right)} \]

      19. *-commutative N/A

          \[\leadsto y \cdot x + \left(\color{blue}{1} - y\right) \]

      20. lower-fma.f64 N/A

          \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

      21. lift--.f64 100.0

          \[\leadsto \mathsf{fma}\left(y, x, 1 - y\right) \]

   7. Applied rewrites 100.0%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

   8. Taylor expanded in y around inf

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
   9. Step-by-step derivation

      1. *-commutative N/A

         \[\leadsto \left(x - 1\right) \cdot y \]

      2. lower-*.f64 N/A

         \[\leadsto \left(x - 1\right) \cdot y \]

      3. lower--.f64 96.7

         \[\leadsto \left(x - 1\right) \cdot y \]

   10. Applied rewrites 96.7%

       \[\leadsto \left(x - 1\right) \cdot \color{blue}{y} \]

   if -1.44999999999999995e-58 < y < 0.058999999999999997

   1. Initial program 51.9%

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

   3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{1 - y} \]
   4. Step-by-step derivation

      1. lift--.f64 80.6

         \[\leadsto 1 - \color{blue}{y} \]

   5. Applied rewrites 80.6%

      \[\leadsto \color{blue}{1 - y} \]
3. Recombined 2 regimes into one program.

4. Final simplification 89.5%

   \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -1.45 \cdot 10^{-58} \lor \neg \left(y \leq 0.059\right):\\ \;\;\;\;\left(x - 1\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
5. Add Preprocessing

Alternative 4: 87.1% accurate, 0.7× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -1.45 \cdot 10^{-58}:\\ \;\;\;\;\mathsf{fma}\left(y, x, -y\right)\\ \mathbf{elif}\;y \leq 0.059:\\ \;\;\;\;1 - y\\ \mathbf{else}:\\ \;\;\;\;\left(x - 1\right) \cdot y\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (<= y -1.45e-58)
   (fma y x (- y))
   (if (<= y 0.059) (- 1.0 y) (* (- x 1.0) y))))

C

double code(double x, double y) {
	double tmp;
	if (y <= -1.45e-58) {
		tmp = fma(y, x, -y);
	} else if (y <= 0.059) {
		tmp = 1.0 - y;
	} else {
		tmp = (x - 1.0) * y;
	}
	return tmp;
}

Julia

function code(x, y)
	tmp = 0.0
	if (y <= -1.45e-58)
		tmp = fma(y, x, Float64(-y));
	elseif (y <= 0.059)
		tmp = Float64(1.0 - y);
	else
		tmp = Float64(Float64(x - 1.0) * y);
	end
	return tmp
end

Wolfram

code[x_, y_] := If[LessEqual[y, -1.45e-58], N[(y * x + (-y)), $MachinePrecision], If[LessEqual[y, 0.059], N[(1.0 - y), $MachinePrecision], N[(N[(x - 1.0), $MachinePrecision] * y), $MachinePrecision]]]

Derivation

1. Split input into 3 regimes

2. if y < -1.44999999999999995e-58

   1. Initial program 91.8%

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

   3. Taylor expanded in y around 0

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

      1. associate-*r* N/A

         \[\leadsto 1 + \left(-1 \cdot y\right) \cdot \color{blue}{\left(1 - x\right)} \]

      2. mul-1-neg N/A

         \[\leadsto 1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(\color{blue}{1} - x\right) \]

      3. fp-cancel-sub-sign N/A

         \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

      4. lower--.f64 N/A

         \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

      5. *-commutative N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      6. lower-*.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      7. lift--.f64 100.0

         \[\leadsto 1 - \left(1 - x\right) \cdot y \]

   5. Applied rewrites 100.0%

      \[\leadsto \color{blue}{1 - \left(1 - x\right) \cdot y} \]
   6. Step-by-step derivation

      1. lift--.f64 N/A

         \[\leadsto 1 - \color{blue}{\left(1 - x\right) \cdot y} \]

      2. lift--.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot y \]

      3. lift-*.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      4. *-lft-identity N/A

         \[\leadsto 1 - 1 \cdot \color{blue}{\left(\left(1 - x\right) \cdot y\right)} \]

      5. associate-*r* N/A

         \[\leadsto 1 - \left(1 \cdot \left(1 - x\right)\right) \cdot \color{blue}{y} \]

      6. distribute-lft-out-- N/A

         \[\leadsto 1 - \left(1 \cdot 1 - 1 \cdot x\right) \cdot y \]

      7. metadata-eval N/A

         \[\leadsto 1 - \left(1 - 1 \cdot x\right) \cdot y \]

      8. metadata-eval N/A

         \[\leadsto 1 - \left(1 - \left(\mathsf{neg}\left(-1\right)\right) \cdot x\right) \cdot y \]

      9. fp-cancel-sign-sub-inv N/A

         \[\leadsto 1 - \left(1 + -1 \cdot x\right) \cdot y \]

      10. +-commutative N/A

          \[\leadsto 1 - \left(-1 \cdot x + 1\right) \cdot y \]

      11. distribute-lft1-in N/A

          \[\leadsto 1 - \left(\left(-1 \cdot x\right) \cdot y + \color{blue}{y}\right) \]

      12. associate-*r* N/A

          \[\leadsto 1 - \left(-1 \cdot \left(x \cdot y\right) + y\right) \]

      13. associate--l- N/A

          \[\leadsto \left(1 - -1 \cdot \left(x \cdot y\right)\right) - \color{blue}{y} \]

      14. associate-*r* N/A

          \[\leadsto \left(1 - \left(-1 \cdot x\right) \cdot y\right) - y \]

      15. mul-1-neg N/A

          \[\leadsto \left(1 - \left(\mathsf{neg}\left(x\right)\right) \cdot y\right) - y \]

      16. fp-cancel-sign-sub-inv N/A

          \[\leadsto \left(1 + x \cdot y\right) - y \]

      17. +-commutative N/A

          \[\leadsto \left(x \cdot y + 1\right) - y \]

      18. associate--l+ N/A

          \[\leadsto x \cdot y + \color{blue}{\left(1 - y\right)} \]

      19. *-commutative N/A

          \[\leadsto y \cdot x + \left(\color{blue}{1} - y\right) \]

      20. lower-fma.f64 N/A

          \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

      21. lift--.f64 100.0

          \[\leadsto \mathsf{fma}\left(y, x, 1 - y\right) \]

   7. Applied rewrites 100.0%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

   8. Taylor expanded in y around inf

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
   9. Step-by-step derivation

      1. *-commutative N/A

         \[\leadsto \left(x - 1\right) \cdot y \]

      2. lower-*.f64 N/A

         \[\leadsto \left(x - 1\right) \cdot y \]

      3. lower--.f64 94.1

         \[\leadsto \left(x - 1\right) \cdot y \]

   10. Applied rewrites 94.1%

       \[\leadsto \left(x - 1\right) \cdot \color{blue}{y} \]
   11. Step-by-step derivation

       1. lift--.f64 N/A

          \[\leadsto \left(x - 1\right) \cdot y \]

       2. lift-*.f64 N/A

          \[\leadsto \left(x - 1\right) \cdot y \]

       3. *-commutative N/A

          \[\leadsto y \cdot \left(x - \color{blue}{1}\right) \]

       4. metadata-eval N/A

          \[\leadsto y \cdot \left(x - 1 \cdot 1\right) \]

       5. fp-cancel-sub-sign-inv N/A

          \[\leadsto y \cdot \left(x + \left(\mathsf{neg}\left(1\right)\right) \cdot \color{blue}{1}\right) \]

       6. metadata-eval N/A

          \[\leadsto y \cdot \left(x + -1 \cdot 1\right) \]

       7. metadata-eval N/A

          \[\leadsto y \cdot \left(x + -1\right) \]

       8. distribute-rgt-out N/A

          \[\leadsto x \cdot y + -1 \cdot \color{blue}{y} \]

       9. *-commutative N/A

          \[\leadsto y \cdot x + -1 \cdot y \]

       10. lower-fma.f64 N/A

           \[\leadsto \mathsf{fma}\left(y, x, -1 \cdot y\right) \]

       11. mul-1-neg N/A

           \[\leadsto \mathsf{fma}\left(y, x, \mathsf{neg}\left(y\right)\right) \]

       12. lower-neg.f64 94.1

           \[\leadsto \mathsf{fma}\left(y, x, -y\right) \]

   12. Applied rewrites 94.1%

       \[\leadsto \mathsf{fma}\left(y, x, -y\right) \]

   if -1.44999999999999995e-58 < y < 0.058999999999999997

   1. Initial program 51.9%

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

   3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{1 - y} \]
   4. Step-by-step derivation

      1. lift--.f64 80.6

         \[\leadsto 1 - \color{blue}{y} \]

   5. Applied rewrites 80.6%

      \[\leadsto \color{blue}{1 - y} \]

   if 0.058999999999999997 < y

   1. Initial program 100.0%

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

   3. Taylor expanded in y around 0

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

      1. associate-*r* N/A

         \[\leadsto 1 + \left(-1 \cdot y\right) \cdot \color{blue}{\left(1 - x\right)} \]

      2. mul-1-neg N/A

         \[\leadsto 1 + \left(\mathsf{neg}\left(y\right)\right) \cdot \left(\color{blue}{1} - x\right) \]

      3. fp-cancel-sub-sign N/A

         \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

      4. lower--.f64 N/A

         \[\leadsto 1 - \color{blue}{y \cdot \left(1 - x\right)} \]

      5. *-commutative N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      6. lower-*.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      7. lift--.f64 100.0

         \[\leadsto 1 - \left(1 - x\right) \cdot y \]

   5. Applied rewrites 100.0%

      \[\leadsto \color{blue}{1 - \left(1 - x\right) \cdot y} \]
   6. Step-by-step derivation

      1. lift--.f64 N/A

         \[\leadsto 1 - \color{blue}{\left(1 - x\right) \cdot y} \]

      2. lift--.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot y \]

      3. lift-*.f64 N/A

         \[\leadsto 1 - \left(1 - x\right) \cdot \color{blue}{y} \]

      4. *-lft-identity N/A

         \[\leadsto 1 - 1 \cdot \color{blue}{\left(\left(1 - x\right) \cdot y\right)} \]

      5. associate-*r* N/A

         \[\leadsto 1 - \left(1 \cdot \left(1 - x\right)\right) \cdot \color{blue}{y} \]

      6. distribute-lft-out-- N/A

         \[\leadsto 1 - \left(1 \cdot 1 - 1 \cdot x\right) \cdot y \]

      7. metadata-eval N/A

         \[\leadsto 1 - \left(1 - 1 \cdot x\right) \cdot y \]

      8. metadata-eval N/A

         \[\leadsto 1 - \left(1 - \left(\mathsf{neg}\left(-1\right)\right) \cdot x\right) \cdot y \]

      9. fp-cancel-sign-sub-inv N/A

         \[\leadsto 1 - \left(1 + -1 \cdot x\right) \cdot y \]

      10. +-commutative N/A

          \[\leadsto 1 - \left(-1 \cdot x + 1\right) \cdot y \]

      11. distribute-lft1-in N/A

          \[\leadsto 1 - \left(\left(-1 \cdot x\right) \cdot y + \color{blue}{y}\right) \]

      12. associate-*r* N/A

          \[\leadsto 1 - \left(-1 \cdot \left(x \cdot y\right) + y\right) \]

      13. associate--l- N/A

          \[\leadsto \left(1 - -1 \cdot \left(x \cdot y\right)\right) - \color{blue}{y} \]

      14. associate-*r* N/A

          \[\leadsto \left(1 - \left(-1 \cdot x\right) \cdot y\right) - y \]

      15. mul-1-neg N/A

          \[\leadsto \left(1 - \left(\mathsf{neg}\left(x\right)\right) \cdot y\right) - y \]

      16. fp-cancel-sign-sub-inv N/A

          \[\leadsto \left(1 + x \cdot y\right) - y \]

      17. +-commutative N/A

          \[\leadsto \left(x \cdot y + 1\right) - y \]

      18. associate--l+ N/A

          \[\leadsto x \cdot y + \color{blue}{\left(1 - y\right)} \]

      19. *-commutative N/A

          \[\leadsto y \cdot x + \left(\color{blue}{1} - y\right) \]

      20. lower-fma.f64 N/A

          \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

      21. lift--.f64 100.0

          \[\leadsto \mathsf{fma}\left(y, x, 1 - y\right) \]

   7. Applied rewrites 100.0%

      \[\leadsto \mathsf{fma}\left(y, \color{blue}{x}, 1 - y\right) \]

   8. Taylor expanded in y around inf

      \[\leadsto y \cdot \color{blue}{\left(x - 1\right)} \]
   9. Step-by-step derivation

      1. *-commutative N/A

         \[\leadsto \left(x - 1\right) \cdot y \]

      2. lower-*.f64 N/A

         \[\leadsto \left(x - 1\right) \cdot y \]

      3. lower--.f64 99.6

         \[\leadsto \left(x - 1\right) \cdot y \]

   10. Applied rewrites 99.6%

       \[\leadsto \left(x - 1\right) \cdot \color{blue}{y} \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 5: 87.1% accurate, 0.8× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -1.75 \cdot 10^{+32} \lor \neg \left(x \leq 2 \cdot 10^{+22}\right):\\ \;\;\;\;y \cdot x\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (if (or (<= x -1.75e+32) (not (<= x 2e+22))) (* y x) (- 1.0 y)))

C

double code(double x, double y) {
	double tmp;
	if ((x <= -1.75e+32) || !(x <= 2e+22)) {
		tmp = y * x;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: tmp
    if ((x <= (-1.75d+32)) .or. (.not. (x <= 2d+22))) then
        tmp = y * x
    else
        tmp = 1.0d0 - y
    end if
    code = tmp
end function

Java

public static double code(double x, double y) {
	double tmp;
	if ((x <= -1.75e+32) || !(x <= 2e+22)) {
		tmp = y * x;
	} else {
		tmp = 1.0 - y;
	}
	return tmp;
}

Python

def code(x, y):
	tmp = 0
	if (x <= -1.75e+32) or not (x <= 2e+22):
		tmp = y * x
	else:
		tmp = 1.0 - y
	return tmp

Julia

function code(x, y)
	tmp = 0.0
	if ((x <= -1.75e+32) || !(x <= 2e+22))
		tmp = Float64(y * x);
	else
		tmp = Float64(1.0 - y);
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((x <= -1.75e+32) || ~((x <= 2e+22)))
		tmp = y * x;
	else
		tmp = 1.0 - y;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_] := If[Or[LessEqual[x, -1.75e+32], N[Not[LessEqual[x, 2e+22]], $MachinePrecision]], N[(y * x), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if x < -1.75e32 or 2e22 < x

   1. Initial program 56.0%

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

   3. Taylor expanded in x around -inf

      \[\leadsto \color{blue}{x \cdot y} \]
   4. Step-by-step derivation

      1. *-commutative N/A

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

      2. lower-*.f64 76.2

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

   5. Applied rewrites 76.2%

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

   if -1.75e32 < x < 2e22

   1. Initial program 97.6%

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

   3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{1 - y} \]
   4. Step-by-step derivation

      1. lift--.f64 96.6

         \[\leadsto 1 - \color{blue}{y} \]

   5. Applied rewrites 96.6%

      \[\leadsto \color{blue}{1 - y} \]
3. Recombined 2 regimes into one program.

4. Final simplification 86.0%

   \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -1.75 \cdot 10^{+32} \lor \neg \left(x \leq 2 \cdot 10^{+22}\right):\\ \;\;\;\;y \cdot x\\ \mathbf{else}:\\ \;\;\;\;1 - y\\ \end{array} \]
5. Add Preprocessing

Alternative 6: 62.9% accurate, 3.8× speedup

Math

\[\begin{array}{l} \\ 1 - y \end{array} \]

FPCore

(FPCore (x y) :precision binary64 (- 1.0 y))

C

double code(double x, double y) {
	return 1.0 - y;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 1.0d0 - y
end function

Java

public static double code(double x, double y) {
	return 1.0 - y;
}

Python

def code(x, y):
	return 1.0 - y

Julia

function code(x, y)
	return Float64(1.0 - y)
end

MATLAB

function tmp = code(x, y)
	tmp = 1.0 - y;
end

Wolfram

code[x_, y_] := N[(1.0 - y), $MachinePrecision]

Derivation

1. Initial program 76.0%

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

3. Taylor expanded in x around 0

   \[\leadsto \color{blue}{1 - y} \]
4. Step-by-step derivation

   1. lift--.f64 59.9

      \[\leadsto 1 - \color{blue}{y} \]

5. Applied rewrites 59.9%

   \[\leadsto \color{blue}{1 - y} \]
6. Add Preprocessing

Alternative 7: 38.2% accurate, 15.0× speedup

Math

\[\begin{array}{l} \\ 1 \end{array} \]

FPCore

(FPCore (x y) :precision binary64 1.0)

C

double code(double x, double y) {
	return 1.0;
}

Fortran

module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 1.0d0
end function

Java

public static double code(double x, double y) {
	return 1.0;
}

Python

def code(x, y):
	return 1.0

Julia

function code(x, y)
	return 1.0
end

MATLAB

function tmp = code(x, y)
	tmp = 1.0;
end

Wolfram

code[x_, y_] := 1.0

Derivation

1. Initial program 76.0%

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

3. Taylor expanded in y around 0

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

5. Applied rewrites 38.8%

   \[\leadsto \color{blue}{1} \]
6. Add Preprocessing

Reproduce

herbie shell --seed 2025085 
(FPCore (x y)
  :name "Graphics.Rendering.Chart.Plot.Vectors:renderPlotVectors from Chart-1.5.3"
  :precision binary64

  :alt
  (! :herbie-platform default (- (* y x) (- y 1)))

  (+ x (* (- 1.0 x) (- 1.0 y))))