
(FPCore (x.re x.im) :precision binary64 (+ (* (- (* x.re x.re) (* x.im x.im)) x.im) (* (+ (* x.re x.im) (* x.im x.re)) x.re)))
double code(double x_46_re, double x_46_im) {
return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
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_46re, x_46im)
use fmin_fmax_functions
real(8), intent (in) :: x_46re
real(8), intent (in) :: x_46im
code = (((x_46re * x_46re) - (x_46im * x_46im)) * x_46im) + (((x_46re * x_46im) + (x_46im * x_46re)) * x_46re)
end function
public static double code(double x_46_re, double x_46_im) {
return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
def code(x_46_re, x_46_im): return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re)
function code(x_46_re, x_46_im) return Float64(Float64(Float64(Float64(x_46_re * x_46_re) - Float64(x_46_im * x_46_im)) * x_46_im) + Float64(Float64(Float64(x_46_re * x_46_im) + Float64(x_46_im * x_46_re)) * x_46_re)) end
function tmp = code(x_46_re, x_46_im) tmp = (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re); end
code[x$46$re_, x$46$im_] := N[(N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] - N[(x$46$im * x$46$im), $MachinePrecision]), $MachinePrecision] * x$46$im), $MachinePrecision] + N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] + N[(x$46$im * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$re), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re
\end{array}
Herbie found 3 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x.re x.im) :precision binary64 (+ (* (- (* x.re x.re) (* x.im x.im)) x.im) (* (+ (* x.re x.im) (* x.im x.re)) x.re)))
double code(double x_46_re, double x_46_im) {
return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
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_46re, x_46im)
use fmin_fmax_functions
real(8), intent (in) :: x_46re
real(8), intent (in) :: x_46im
code = (((x_46re * x_46re) - (x_46im * x_46im)) * x_46im) + (((x_46re * x_46im) + (x_46im * x_46re)) * x_46re)
end function
public static double code(double x_46_re, double x_46_im) {
return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re);
}
def code(x_46_re, x_46_im): return (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re)
function code(x_46_re, x_46_im) return Float64(Float64(Float64(Float64(x_46_re * x_46_re) - Float64(x_46_im * x_46_im)) * x_46_im) + Float64(Float64(Float64(x_46_re * x_46_im) + Float64(x_46_im * x_46_re)) * x_46_re)) end
function tmp = code(x_46_re, x_46_im) tmp = (((x_46_re * x_46_re) - (x_46_im * x_46_im)) * x_46_im) + (((x_46_re * x_46_im) + (x_46_im * x_46_re)) * x_46_re); end
code[x$46$re_, x$46$im_] := N[(N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] - N[(x$46$im * x$46$im), $MachinePrecision]), $MachinePrecision] * x$46$im), $MachinePrecision] + N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] + N[(x$46$im * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$re), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x.re \cdot x.re - x.im \cdot x.im\right) \cdot x.im + \left(x.re \cdot x.im + x.im \cdot x.re\right) \cdot x.re
\end{array}
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
:precision binary64
(let* ((t_0 (- (* (* x.im_m x.im_m) x.im_m)))
(t_1
(+
(* (- (* x.re x.re) (* x.im_m x.im_m)) x.im_m)
(* (+ (* x.re x.im_m) (* x.im_m x.re)) x.re))))
(*
x.im_s
(if (<= t_1 -2e-295)
t_0
(if (<= t_1 INFINITY) (* x.re (* x.re (* 3.0 x.im_m))) t_0)))))x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
double t_0 = -((x_46_im_m * x_46_im_m) * x_46_im_m);
double t_1 = (((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m)) * x_46_im_m) + (((x_46_re * x_46_im_m) + (x_46_im_m * x_46_re)) * x_46_re);
double tmp;
if (t_1 <= -2e-295) {
tmp = t_0;
} else if (t_1 <= ((double) INFINITY)) {
tmp = x_46_re * (x_46_re * (3.0 * x_46_im_m));
} else {
tmp = t_0;
}
return x_46_im_s * tmp;
}
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
double t_0 = -((x_46_im_m * x_46_im_m) * x_46_im_m);
double t_1 = (((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m)) * x_46_im_m) + (((x_46_re * x_46_im_m) + (x_46_im_m * x_46_re)) * x_46_re);
double tmp;
if (t_1 <= -2e-295) {
tmp = t_0;
} else if (t_1 <= Double.POSITIVE_INFINITY) {
tmp = x_46_re * (x_46_re * (3.0 * x_46_im_m));
} else {
tmp = t_0;
}
return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im) x.im\_s = math.copysign(1.0, x_46_im) def code(x_46_im_s, x_46_re, x_46_im_m): t_0 = -((x_46_im_m * x_46_im_m) * x_46_im_m) t_1 = (((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m)) * x_46_im_m) + (((x_46_re * x_46_im_m) + (x_46_im_m * x_46_re)) * x_46_re) tmp = 0 if t_1 <= -2e-295: tmp = t_0 elif t_1 <= math.inf: tmp = x_46_re * (x_46_re * (3.0 * x_46_im_m)) else: tmp = t_0 return x_46_im_s * tmp
x.im\_m = abs(x_46_im) x.im\_s = copysign(1.0, x_46_im) function code(x_46_im_s, x_46_re, x_46_im_m) t_0 = Float64(-Float64(Float64(x_46_im_m * x_46_im_m) * x_46_im_m)) t_1 = Float64(Float64(Float64(Float64(x_46_re * x_46_re) - Float64(x_46_im_m * x_46_im_m)) * x_46_im_m) + Float64(Float64(Float64(x_46_re * x_46_im_m) + Float64(x_46_im_m * x_46_re)) * x_46_re)) tmp = 0.0 if (t_1 <= -2e-295) tmp = t_0; elseif (t_1 <= Inf) tmp = Float64(x_46_re * Float64(x_46_re * Float64(3.0 * x_46_im_m))); else tmp = t_0; end return Float64(x_46_im_s * tmp) end
x.im\_m = abs(x_46_im); x.im\_s = sign(x_46_im) * abs(1.0); function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m) t_0 = -((x_46_im_m * x_46_im_m) * x_46_im_m); t_1 = (((x_46_re * x_46_re) - (x_46_im_m * x_46_im_m)) * x_46_im_m) + (((x_46_re * x_46_im_m) + (x_46_im_m * x_46_re)) * x_46_re); tmp = 0.0; if (t_1 <= -2e-295) tmp = t_0; elseif (t_1 <= Inf) tmp = x_46_re * (x_46_re * (3.0 * x_46_im_m)); else tmp = t_0; end tmp_2 = x_46_im_s * tmp; end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := Block[{t$95$0 = (-N[(N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision] * x$46$im$95$m), $MachinePrecision])}, Block[{t$95$1 = N[(N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] - N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision]), $MachinePrecision] * x$46$im$95$m), $MachinePrecision] + N[(N[(N[(x$46$re * x$46$im$95$m), $MachinePrecision] + N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision] * x$46$re), $MachinePrecision]), $MachinePrecision]}, N[(x$46$im$95$s * If[LessEqual[t$95$1, -2e-295], t$95$0, If[LessEqual[t$95$1, Infinity], N[(x$46$re * N[(x$46$re * N[(3.0 * x$46$im$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]), $MachinePrecision]]]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)
\\
\begin{array}{l}
t_0 := -\left(x.im\_m \cdot x.im\_m\right) \cdot x.im\_m\\
t_1 := \left(x.re \cdot x.re - x.im\_m \cdot x.im\_m\right) \cdot x.im\_m + \left(x.re \cdot x.im\_m + x.im\_m \cdot x.re\right) \cdot x.re\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;t\_1 \leq -2 \cdot 10^{-295}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;t\_1 \leq \infty:\\
\;\;\;\;x.re \cdot \left(x.re \cdot \left(3 \cdot x.im\_m\right)\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
\end{array}
if (+.f64 (*.f64 (-.f64 (*.f64 x.re x.re) (*.f64 x.im x.im)) x.im) (*.f64 (+.f64 (*.f64 x.re x.im) (*.f64 x.im x.re)) x.re)) < -2.00000000000000012e-295 or +inf.0 < (+.f64 (*.f64 (-.f64 (*.f64 x.re x.re) (*.f64 x.im x.im)) x.im) (*.f64 (+.f64 (*.f64 x.re x.im) (*.f64 x.im x.re)) x.re)) Initial program 74.3%
Taylor expanded in x.re around 0
mul-1-negN/A
lower-neg.f64N/A
unpow3N/A
pow2N/A
lower-*.f64N/A
pow2N/A
lift-*.f6492.1
Applied rewrites92.1%
if -2.00000000000000012e-295 < (+.f64 (*.f64 (-.f64 (*.f64 x.re x.re) (*.f64 x.im x.im)) x.im) (*.f64 (+.f64 (*.f64 x.re x.im) (*.f64 x.im x.re)) x.re)) < +inf.0Initial program 89.0%
Taylor expanded in x.im around 0
*-commutativeN/A
lower-*.f64N/A
distribute-lft1-inN/A
metadata-evalN/A
lower-*.f64N/A
pow2N/A
lift-*.f6487.7
Applied rewrites87.7%
lift-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
pow2N/A
associate-*l*N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-*.f64N/A
pow2N/A
lift-*.f64N/A
lower-*.f6487.8
Applied rewrites87.8%
lift-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-*.f6498.5
Applied rewrites98.5%
x.im\_m = (fabs.f64 x.im)
x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im)
(FPCore (x.im_s x.re x.im_m)
:precision binary64
(*
x.im_s
(if (<= x.re 4.4e+151)
(* (- (* (* x.re x.re) 3.0) (* x.im_m x.im_m)) x.im_m)
(* (* x.re (* x.im_m x.re)) 3.0))))x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
double tmp;
if (x_46_re <= 4.4e+151) {
tmp = (((x_46_re * x_46_re) * 3.0) - (x_46_im_m * x_46_im_m)) * x_46_im_m;
} else {
tmp = (x_46_re * (x_46_im_m * x_46_re)) * 3.0;
}
return x_46_im_s * tmp;
}
x.im\_m = private
x.im\_s = private
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_46im_s, x_46re, x_46im_m)
use fmin_fmax_functions
real(8), intent (in) :: x_46im_s
real(8), intent (in) :: x_46re
real(8), intent (in) :: x_46im_m
real(8) :: tmp
if (x_46re <= 4.4d+151) then
tmp = (((x_46re * x_46re) * 3.0d0) - (x_46im_m * x_46im_m)) * x_46im_m
else
tmp = (x_46re * (x_46im_m * x_46re)) * 3.0d0
end if
code = x_46im_s * tmp
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
double tmp;
if (x_46_re <= 4.4e+151) {
tmp = (((x_46_re * x_46_re) * 3.0) - (x_46_im_m * x_46_im_m)) * x_46_im_m;
} else {
tmp = (x_46_re * (x_46_im_m * x_46_re)) * 3.0;
}
return x_46_im_s * tmp;
}
x.im\_m = math.fabs(x_46_im) x.im\_s = math.copysign(1.0, x_46_im) def code(x_46_im_s, x_46_re, x_46_im_m): tmp = 0 if x_46_re <= 4.4e+151: tmp = (((x_46_re * x_46_re) * 3.0) - (x_46_im_m * x_46_im_m)) * x_46_im_m else: tmp = (x_46_re * (x_46_im_m * x_46_re)) * 3.0 return x_46_im_s * tmp
x.im\_m = abs(x_46_im) x.im\_s = copysign(1.0, x_46_im) function code(x_46_im_s, x_46_re, x_46_im_m) tmp = 0.0 if (x_46_re <= 4.4e+151) tmp = Float64(Float64(Float64(Float64(x_46_re * x_46_re) * 3.0) - Float64(x_46_im_m * x_46_im_m)) * x_46_im_m); else tmp = Float64(Float64(x_46_re * Float64(x_46_im_m * x_46_re)) * 3.0); end return Float64(x_46_im_s * tmp) end
x.im\_m = abs(x_46_im); x.im\_s = sign(x_46_im) * abs(1.0); function tmp_2 = code(x_46_im_s, x_46_re, x_46_im_m) tmp = 0.0; if (x_46_re <= 4.4e+151) tmp = (((x_46_re * x_46_re) * 3.0) - (x_46_im_m * x_46_im_m)) * x_46_im_m; else tmp = (x_46_re * (x_46_im_m * x_46_re)) * 3.0; end tmp_2 = x_46_im_s * tmp; end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * If[LessEqual[x$46$re, 4.4e+151], N[(N[(N[(N[(x$46$re * x$46$re), $MachinePrecision] * 3.0), $MachinePrecision] - N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision]), $MachinePrecision] * x$46$im$95$m), $MachinePrecision], N[(N[(x$46$re * N[(x$46$im$95$m * x$46$re), $MachinePrecision]), $MachinePrecision] * 3.0), $MachinePrecision]]), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)
\\
x.im\_s \cdot \begin{array}{l}
\mathbf{if}\;x.re \leq 4.4 \cdot 10^{+151}:\\
\;\;\;\;\left(\left(x.re \cdot x.re\right) \cdot 3 - x.im\_m \cdot x.im\_m\right) \cdot x.im\_m\\
\mathbf{else}:\\
\;\;\;\;\left(x.re \cdot \left(x.im\_m \cdot x.re\right)\right) \cdot 3\\
\end{array}
\end{array}
if x.re < 4.40000000000000013e151Initial program 86.5%
Taylor expanded in x.im around 0
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
distribute-lft1-inN/A
metadata-evalN/A
lower-fma.f64N/A
pow2N/A
lift-*.f64N/A
mul-1-negN/A
lower-neg.f64N/A
pow2N/A
lift-*.f6492.6
Applied rewrites92.6%
Taylor expanded in x.re around 0
pow2N/A
lower--.f64N/A
*-commutativeN/A
lower-*.f64N/A
pow2N/A
lift-*.f64N/A
lift-*.f6492.6
Applied rewrites92.6%
if 4.40000000000000013e151 < x.re Initial program 50.2%
Taylor expanded in x.im around 0
*-commutativeN/A
lower-*.f64N/A
distribute-lft1-inN/A
metadata-evalN/A
lower-*.f64N/A
pow2N/A
lift-*.f6463.7
Applied rewrites63.7%
lift-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
pow2N/A
associate-*l*N/A
*-commutativeN/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
pow2N/A
lift-*.f6463.9
Applied rewrites63.9%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f64N/A
lift-*.f6486.1
Applied rewrites86.1%
x.im\_m = (fabs.f64 x.im) x.im\_s = (copysign.f64 #s(literal 1 binary64) x.im) (FPCore (x.im_s x.re x.im_m) :precision binary64 (* x.im_s (- (* (* x.im_m x.im_m) x.im_m))))
x.im\_m = fabs(x_46_im);
x.im\_s = copysign(1.0, x_46_im);
double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
return x_46_im_s * -((x_46_im_m * x_46_im_m) * x_46_im_m);
}
x.im\_m = private
x.im\_s = private
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_46im_s, x_46re, x_46im_m)
use fmin_fmax_functions
real(8), intent (in) :: x_46im_s
real(8), intent (in) :: x_46re
real(8), intent (in) :: x_46im_m
code = x_46im_s * -((x_46im_m * x_46im_m) * x_46im_m)
end function
x.im\_m = Math.abs(x_46_im);
x.im\_s = Math.copySign(1.0, x_46_im);
public static double code(double x_46_im_s, double x_46_re, double x_46_im_m) {
return x_46_im_s * -((x_46_im_m * x_46_im_m) * x_46_im_m);
}
x.im\_m = math.fabs(x_46_im) x.im\_s = math.copysign(1.0, x_46_im) def code(x_46_im_s, x_46_re, x_46_im_m): return x_46_im_s * -((x_46_im_m * x_46_im_m) * x_46_im_m)
x.im\_m = abs(x_46_im) x.im\_s = copysign(1.0, x_46_im) function code(x_46_im_s, x_46_re, x_46_im_m) return Float64(x_46_im_s * Float64(-Float64(Float64(x_46_im_m * x_46_im_m) * x_46_im_m))) end
x.im\_m = abs(x_46_im); x.im\_s = sign(x_46_im) * abs(1.0); function tmp = code(x_46_im_s, x_46_re, x_46_im_m) tmp = x_46_im_s * -((x_46_im_m * x_46_im_m) * x_46_im_m); end
x.im\_m = N[Abs[x$46$im], $MachinePrecision]
x.im\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x$46$im]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$46$im$95$s_, x$46$re_, x$46$im$95$m_] := N[(x$46$im$95$s * (-N[(N[(x$46$im$95$m * x$46$im$95$m), $MachinePrecision] * x$46$im$95$m), $MachinePrecision])), $MachinePrecision]
\begin{array}{l}
x.im\_m = \left|x.im\right|
\\
x.im\_s = \mathsf{copysign}\left(1, x.im\right)
\\
x.im\_s \cdot \left(-\left(x.im\_m \cdot x.im\_m\right) \cdot x.im\_m\right)
\end{array}
Initial program 82.0%
Taylor expanded in x.re around 0
mul-1-negN/A
lower-neg.f64N/A
unpow3N/A
pow2N/A
lower-*.f64N/A
pow2N/A
lift-*.f6458.9
Applied rewrites58.9%
(FPCore (x.re x.im) :precision binary64 (+ (* (* x.re x.im) (* 2.0 x.re)) (* (* x.im (- x.re x.im)) (+ x.re x.im))))
double code(double x_46_re, double x_46_im) {
return ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im));
}
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_46re, x_46im)
use fmin_fmax_functions
real(8), intent (in) :: x_46re
real(8), intent (in) :: x_46im
code = ((x_46re * x_46im) * (2.0d0 * x_46re)) + ((x_46im * (x_46re - x_46im)) * (x_46re + x_46im))
end function
public static double code(double x_46_re, double x_46_im) {
return ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im));
}
def code(x_46_re, x_46_im): return ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im))
function code(x_46_re, x_46_im) return Float64(Float64(Float64(x_46_re * x_46_im) * Float64(2.0 * x_46_re)) + Float64(Float64(x_46_im * Float64(x_46_re - x_46_im)) * Float64(x_46_re + x_46_im))) end
function tmp = code(x_46_re, x_46_im) tmp = ((x_46_re * x_46_im) * (2.0 * x_46_re)) + ((x_46_im * (x_46_re - x_46_im)) * (x_46_re + x_46_im)); end
code[x$46$re_, x$46$im_] := N[(N[(N[(x$46$re * x$46$im), $MachinePrecision] * N[(2.0 * x$46$re), $MachinePrecision]), $MachinePrecision] + N[(N[(x$46$im * N[(x$46$re - x$46$im), $MachinePrecision]), $MachinePrecision] * N[(x$46$re + x$46$im), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x.re \cdot x.im\right) \cdot \left(2 \cdot x.re\right) + \left(x.im \cdot \left(x.re - x.im\right)\right) \cdot \left(x.re + x.im\right)
\end{array}
herbie shell --seed 2025117
(FPCore (x.re x.im)
:name "math.cube on complex, imaginary part"
:precision binary64
:alt
(! :herbie-platform c (+ (* (* x.re x.im) (* 2 x.re)) (* (* x.im (- x.re x.im)) (+ x.re x.im))))
(+ (* (- (* x.re x.re) (* x.im x.im)) x.im) (* (+ (* x.re x.im) (* x.im x.re)) x.re)))