
(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))
double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
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
public static double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
def code(x, y): return x + ((1.0 - x) * (1.0 - y))
function code(x, y) return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) end
function tmp = code(x, y) tmp = x + ((1.0 - x) * (1.0 - y)); end
code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(1 - x\right) \cdot \left(1 - y\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (+ x (* (- 1.0 x) (- 1.0 y))))
double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
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
public static double code(double x, double y) {
return x + ((1.0 - x) * (1.0 - y));
}
def code(x, y): return x + ((1.0 - x) * (1.0 - y))
function code(x, y) return Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) end
function tmp = code(x, y) tmp = x + ((1.0 - x) * (1.0 - y)); end
code[x_, y_] := N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(1 - x\right) \cdot \left(1 - y\right)
\end{array}
(FPCore (x y) :precision binary64 (fma y x (- 1.0 y)))
double code(double x, double y) {
return fma(y, x, (1.0 - y));
}
function code(x, y) return fma(y, x, Float64(1.0 - y)) end
code[x_, y_] := N[(y * x + N[(1.0 - y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(y, x, 1 - y\right)
\end{array}
Initial program 78.1%
Taylor expanded in y around 0
associate-*r*N/A
mul-1-negN/A
fp-cancel-sub-signN/A
lower--.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift--.f64100.0
Applied rewrites100.0%
lift--.f64N/A
lift--.f64N/A
lift-*.f64N/A
*-lft-identityN/A
associate-*r*N/A
distribute-lft-out--N/A
metadata-evalN/A
metadata-evalN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
distribute-lft1-inN/A
associate-*r*N/A
associate--l-N/A
associate-*r*N/A
mul-1-negN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
associate--l+N/A
*-commutativeN/A
lower-fma.f64N/A
lift--.f64100.0
Applied rewrites100.0%
(FPCore (x y) :precision binary64 (let* ((t_0 (+ x (* (- 1.0 x) (- 1.0 y))))) (if (or (<= t_0 0.0) (not (<= t_0 2.0))) (* (- x 1.0) y) (- 1.0 y))))
double code(double x, double y) {
double t_0 = x + ((1.0 - x) * (1.0 - y));
double tmp;
if ((t_0 <= 0.0) || !(t_0 <= 2.0)) {
tmp = (x - 1.0) * y;
} else {
tmp = 1.0 - y;
}
return tmp;
}
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 <= 0.0d0) .or. (.not. (t_0 <= 2.0d0))) then
tmp = (x - 1.0d0) * y
else
tmp = 1.0d0 - y
end if
code = tmp
end function
public static double code(double x, double y) {
double t_0 = x + ((1.0 - x) * (1.0 - y));
double tmp;
if ((t_0 <= 0.0) || !(t_0 <= 2.0)) {
tmp = (x - 1.0) * y;
} else {
tmp = 1.0 - y;
}
return tmp;
}
def code(x, y): t_0 = x + ((1.0 - x) * (1.0 - y)) tmp = 0 if (t_0 <= 0.0) or not (t_0 <= 2.0): tmp = (x - 1.0) * y else: tmp = 1.0 - y return tmp
function code(x, y) t_0 = Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) tmp = 0.0 if ((t_0 <= 0.0) || !(t_0 <= 2.0)) tmp = Float64(Float64(x - 1.0) * y); else tmp = Float64(1.0 - y); end return tmp end
function tmp_2 = code(x, y) t_0 = x + ((1.0 - x) * (1.0 - y)); tmp = 0.0; if ((t_0 <= 0.0) || ~((t_0 <= 2.0))) tmp = (x - 1.0) * y; else tmp = 1.0 - y; end tmp_2 = tmp; end
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, 0.0], N[Not[LessEqual[t$95$0, 2.0]], $MachinePrecision]], N[(N[(x - 1.0), $MachinePrecision] * y), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x + \left(1 - x\right) \cdot \left(1 - y\right)\\
\mathbf{if}\;t\_0 \leq 0 \lor \neg \left(t\_0 \leq 2\right):\\
\;\;\;\;\left(x - 1\right) \cdot y\\
\mathbf{else}:\\
\;\;\;\;1 - y\\
\end{array}
\end{array}
if (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < 0.0 or 2 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) Initial program 72.1%
Taylor expanded in y around 0
associate-*r*N/A
mul-1-negN/A
fp-cancel-sub-signN/A
lower--.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift--.f64100.0
Applied rewrites100.0%
lift--.f64N/A
lift--.f64N/A
lift-*.f64N/A
*-lft-identityN/A
associate-*r*N/A
distribute-lft-out--N/A
metadata-evalN/A
metadata-evalN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
distribute-lft1-inN/A
associate-*r*N/A
associate--l-N/A
associate-*r*N/A
mul-1-negN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
associate--l+N/A
*-commutativeN/A
lower-fma.f64N/A
lift--.f64100.0
Applied rewrites100.0%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6487.8
Applied rewrites87.8%
if 0.0 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < 2Initial program 100.0%
Taylor expanded in x around 0
lift--.f64100.0
Applied rewrites100.0%
Final simplification90.4%
(FPCore (x y)
:precision binary64
(let* ((t_0 (+ x (* (- 1.0 x) (- 1.0 y)))))
(if (<= t_0 0.0)
(fma y x (- y))
(if (<= t_0 2.0) (- 1.0 y) (* (- x 1.0) y)))))
double code(double x, double y) {
double t_0 = x + ((1.0 - x) * (1.0 - y));
double tmp;
if (t_0 <= 0.0) {
tmp = fma(y, x, -y);
} else if (t_0 <= 2.0) {
tmp = 1.0 - y;
} else {
tmp = (x - 1.0) * y;
}
return tmp;
}
function code(x, y) t_0 = Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) tmp = 0.0 if (t_0 <= 0.0) tmp = fma(y, x, Float64(-y)); elseif (t_0 <= 2.0) tmp = Float64(1.0 - y); else tmp = Float64(Float64(x - 1.0) * y); end return tmp end
code[x_, y_] := Block[{t$95$0 = N[(x + N[(N[(1.0 - x), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, 0.0], N[(y * x + (-y)), $MachinePrecision], If[LessEqual[t$95$0, 2.0], N[(1.0 - y), $MachinePrecision], N[(N[(x - 1.0), $MachinePrecision] * y), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x + \left(1 - x\right) \cdot \left(1 - y\right)\\
\mathbf{if}\;t\_0 \leq 0:\\
\;\;\;\;\mathsf{fma}\left(y, x, -y\right)\\
\mathbf{elif}\;t\_0 \leq 2:\\
\;\;\;\;1 - y\\
\mathbf{else}:\\
\;\;\;\;\left(x - 1\right) \cdot y\\
\end{array}
\end{array}
if (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < 0.0Initial program 59.5%
Taylor expanded in y around 0
associate-*r*N/A
mul-1-negN/A
fp-cancel-sub-signN/A
lower--.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift--.f64100.0
Applied rewrites100.0%
lift--.f64N/A
lift--.f64N/A
lift-*.f64N/A
*-lft-identityN/A
associate-*r*N/A
distribute-lft-out--N/A
metadata-evalN/A
metadata-evalN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
distribute-lft1-inN/A
associate-*r*N/A
associate--l-N/A
associate-*r*N/A
mul-1-negN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
associate--l+N/A
*-commutativeN/A
lower-fma.f64N/A
lift--.f64100.0
Applied rewrites100.0%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6481.8
Applied rewrites81.8%
lift--.f64N/A
lift-*.f64N/A
*-commutativeN/A
metadata-evalN/A
fp-cancel-sub-sign-invN/A
metadata-evalN/A
metadata-evalN/A
distribute-rgt-outN/A
*-commutativeN/A
lower-fma.f64N/A
mul-1-negN/A
lower-neg.f6481.8
Applied rewrites81.8%
if 0.0 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < 2Initial program 100.0%
Taylor expanded in x around 0
lift--.f64100.0
Applied rewrites100.0%
if 2 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) Initial program 96.7%
Taylor expanded in y around 0
associate-*r*N/A
mul-1-negN/A
fp-cancel-sub-signN/A
lower--.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift--.f64100.0
Applied rewrites100.0%
lift--.f64N/A
lift--.f64N/A
lift-*.f64N/A
*-lft-identityN/A
associate-*r*N/A
distribute-lft-out--N/A
metadata-evalN/A
metadata-evalN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
distribute-lft1-inN/A
associate-*r*N/A
associate--l-N/A
associate-*r*N/A
mul-1-negN/A
fp-cancel-sign-sub-invN/A
+-commutativeN/A
associate--l+N/A
*-commutativeN/A
lower-fma.f64N/A
lift--.f64100.0
Applied rewrites100.0%
Taylor expanded in y around inf
*-commutativeN/A
lower-*.f64N/A
lower--.f6499.3
Applied rewrites99.3%
(FPCore (x y) :precision binary64 (let* ((t_0 (+ x (* (- 1.0 x) (- 1.0 y))))) (if (or (<= t_0 -2.0) (not (<= t_0 2.0))) (- y) 1.0)))
double code(double x, double y) {
double t_0 = x + ((1.0 - x) * (1.0 - y));
double tmp;
if ((t_0 <= -2.0) || !(t_0 <= 2.0)) {
tmp = -y;
} else {
tmp = 1.0;
}
return tmp;
}
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 <= (-2.0d0)) .or. (.not. (t_0 <= 2.0d0))) then
tmp = -y
else
tmp = 1.0d0
end if
code = tmp
end function
public static double code(double x, double y) {
double t_0 = x + ((1.0 - x) * (1.0 - y));
double tmp;
if ((t_0 <= -2.0) || !(t_0 <= 2.0)) {
tmp = -y;
} else {
tmp = 1.0;
}
return tmp;
}
def code(x, y): t_0 = x + ((1.0 - x) * (1.0 - y)) tmp = 0 if (t_0 <= -2.0) or not (t_0 <= 2.0): tmp = -y else: tmp = 1.0 return tmp
function code(x, y) t_0 = Float64(x + Float64(Float64(1.0 - x) * Float64(1.0 - y))) tmp = 0.0 if ((t_0 <= -2.0) || !(t_0 <= 2.0)) tmp = Float64(-y); else tmp = 1.0; end return tmp end
function tmp_2 = code(x, y) t_0 = x + ((1.0 - x) * (1.0 - y)); tmp = 0.0; if ((t_0 <= -2.0) || ~((t_0 <= 2.0))) tmp = -y; else tmp = 1.0; end tmp_2 = tmp; end
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, -2.0], N[Not[LessEqual[t$95$0, 2.0]], $MachinePrecision]], (-y), 1.0]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x + \left(1 - x\right) \cdot \left(1 - y\right)\\
\mathbf{if}\;t\_0 \leq -2 \lor \neg \left(t\_0 \leq 2\right):\\
\;\;\;\;-y\\
\mathbf{else}:\\
\;\;\;\;1\\
\end{array}
\end{array}
if (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < -2 or 2 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) Initial program 97.5%
Taylor expanded in x around 0
lift--.f6442.3
Applied rewrites42.3%
Taylor expanded in y around inf
mul-1-negN/A
lift-neg.f6441.7
Applied rewrites41.7%
if -2 < (+.f64 x (*.f64 (-.f64 #s(literal 1 binary64) x) (-.f64 #s(literal 1 binary64) y))) < 2Initial program 51.9%
Taylor expanded in y around 0
Applied rewrites71.8%
Final simplification54.5%
(FPCore (x y) :precision binary64 (if (or (<= x -2.5e+41) (not (<= x 3.1e+17))) (* y x) (- 1.0 y)))
double code(double x, double y) {
double tmp;
if ((x <= -2.5e+41) || !(x <= 3.1e+17)) {
tmp = y * x;
} else {
tmp = 1.0 - y;
}
return tmp;
}
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 <= (-2.5d+41)) .or. (.not. (x <= 3.1d+17))) then
tmp = y * x
else
tmp = 1.0d0 - y
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((x <= -2.5e+41) || !(x <= 3.1e+17)) {
tmp = y * x;
} else {
tmp = 1.0 - y;
}
return tmp;
}
def code(x, y): tmp = 0 if (x <= -2.5e+41) or not (x <= 3.1e+17): tmp = y * x else: tmp = 1.0 - y return tmp
function code(x, y) tmp = 0.0 if ((x <= -2.5e+41) || !(x <= 3.1e+17)) tmp = Float64(y * x); else tmp = Float64(1.0 - y); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((x <= -2.5e+41) || ~((x <= 3.1e+17))) tmp = y * x; else tmp = 1.0 - y; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[x, -2.5e+41], N[Not[LessEqual[x, 3.1e+17]], $MachinePrecision]], N[(y * x), $MachinePrecision], N[(1.0 - y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.5 \cdot 10^{+41} \lor \neg \left(x \leq 3.1 \cdot 10^{+17}\right):\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;1 - y\\
\end{array}
\end{array}
if x < -2.50000000000000011e41 or 3.1e17 < x Initial program 60.7%
Taylor expanded in x around -inf
*-commutativeN/A
lower-*.f6486.2
Applied rewrites86.2%
if -2.50000000000000011e41 < x < 3.1e17Initial program 95.4%
Taylor expanded in x around 0
lift--.f6494.5
Applied rewrites94.5%
Final simplification90.3%
(FPCore (x y) :precision binary64 (- 1.0 y))
double code(double x, double y) {
return 1.0 - y;
}
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
public static double code(double x, double y) {
return 1.0 - y;
}
def code(x, y): return 1.0 - y
function code(x, y) return Float64(1.0 - y) end
function tmp = code(x, y) tmp = 1.0 - y; end
code[x_, y_] := N[(1.0 - y), $MachinePrecision]
\begin{array}{l}
\\
1 - y
\end{array}
Initial program 78.1%
Taylor expanded in x around 0
lift--.f6455.3
Applied rewrites55.3%
(FPCore (x y) :precision binary64 1.0)
double code(double x, double y) {
return 1.0;
}
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
public static double code(double x, double y) {
return 1.0;
}
def code(x, y): return 1.0
function code(x, y) return 1.0 end
function tmp = code(x, y) tmp = 1.0; end
code[x_, y_] := 1.0
\begin{array}{l}
\\
1
\end{array}
Initial program 78.1%
Taylor expanded in y around 0
Applied rewrites32.0%
(FPCore (x y) :precision binary64 (- (* y x) (- y 1.0)))
double code(double x, double y) {
return (y * x) - (y - 1.0);
}
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 = (y * x) - (y - 1.0d0)
end function
public static double code(double x, double y) {
return (y * x) - (y - 1.0);
}
def code(x, y): return (y * x) - (y - 1.0)
function code(x, y) return Float64(Float64(y * x) - Float64(y - 1.0)) end
function tmp = code(x, y) tmp = (y * x) - (y - 1.0); end
code[x_, y_] := N[(N[(y * x), $MachinePrecision] - N[(y - 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
y \cdot x - \left(y - 1\right)
\end{array}
herbie shell --seed 2025051
(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))))