
(FPCore (x y z) :precision binary64 (+ (+ (+ (+ (+ x y) y) x) z) x))
double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
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, z)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((((x + y) + y) + x) + z) + x
end function
public static double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
def code(x, y, z): return ((((x + y) + y) + x) + z) + x
function code(x, y, z) return Float64(Float64(Float64(Float64(Float64(x + y) + y) + x) + z) + x) end
function tmp = code(x, y, z) tmp = ((((x + y) + y) + x) + z) + x; end
code[x_, y_, z_] := N[(N[(N[(N[(N[(x + y), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision] + z), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (+ (+ (+ (+ x y) y) x) z) x))
double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
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, z)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((((x + y) + y) + x) + z) + x
end function
public static double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
def code(x, y, z): return ((((x + y) + y) + x) + z) + x
function code(x, y, z) return Float64(Float64(Float64(Float64(Float64(x + y) + y) + x) + z) + x) end
function tmp = code(x, y, z) tmp = ((((x + y) + y) + x) + z) + x; end
code[x_, y_, z_] := N[(N[(N[(N[(N[(x + y), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision] + z), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\end{array}
(FPCore (x y z) :precision binary64 (fma 3.0 x (fma 2.0 y z)))
double code(double x, double y, double z) {
return fma(3.0, x, fma(2.0, y, z));
}
function code(x, y, z) return fma(3.0, x, fma(2.0, y, z)) end
code[x_, y_, z_] := N[(3.0 * x + N[(2.0 * y + z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(3, x, \mathsf{fma}\left(2, y, z\right)\right)
\end{array}
Initial program 99.9%
Taylor expanded in x around 0
associate-+r+N/A
+-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
lower-fma.f64100.0
Applied rewrites100.0%
(FPCore (x y z) :precision binary64 (if (or (<= x -2.8e+146) (not (<= x 7.5e+76))) (fma 3.0 x z) (fma 2.0 y z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -2.8e+146) || !(x <= 7.5e+76)) {
tmp = fma(3.0, x, z);
} else {
tmp = fma(2.0, y, z);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((x <= -2.8e+146) || !(x <= 7.5e+76)) tmp = fma(3.0, x, z); else tmp = fma(2.0, y, z); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[x, -2.8e+146], N[Not[LessEqual[x, 7.5e+76]], $MachinePrecision]], N[(3.0 * x + z), $MachinePrecision], N[(2.0 * y + z), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.8 \cdot 10^{+146} \lor \neg \left(x \leq 7.5 \cdot 10^{+76}\right):\\
\;\;\;\;\mathsf{fma}\left(3, x, z\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(2, y, z\right)\\
\end{array}
\end{array}
if x < -2.8000000000000001e146 or 7.4999999999999995e76 < x Initial program 99.7%
Taylor expanded in y around 0
+-commutativeN/A
associate-+r+N/A
distribute-rgt1-inN/A
metadata-evalN/A
lower-fma.f6488.4
Applied rewrites88.4%
if -2.8000000000000001e146 < x < 7.4999999999999995e76Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
lower-fma.f6489.4
Applied rewrites89.4%
Final simplification89.1%
(FPCore (x y z) :precision binary64 (if (or (<= x -8e+147) (not (<= x 1.05e+86))) (* 3.0 x) (fma 2.0 y z)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -8e+147) || !(x <= 1.05e+86)) {
tmp = 3.0 * x;
} else {
tmp = fma(2.0, y, z);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((x <= -8e+147) || !(x <= 1.05e+86)) tmp = Float64(3.0 * x); else tmp = fma(2.0, y, z); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[x, -8e+147], N[Not[LessEqual[x, 1.05e+86]], $MachinePrecision]], N[(3.0 * x), $MachinePrecision], N[(2.0 * y + z), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -8 \cdot 10^{+147} \lor \neg \left(x \leq 1.05 \cdot 10^{+86}\right):\\
\;\;\;\;3 \cdot x\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(2, y, z\right)\\
\end{array}
\end{array}
if x < -7.9999999999999998e147 or 1.0499999999999999e86 < x Initial program 99.7%
Taylor expanded in x around inf
lower-*.f6473.9
Applied rewrites73.9%
if -7.9999999999999998e147 < x < 1.0499999999999999e86Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
lower-fma.f6488.6
Applied rewrites88.6%
Final simplification83.6%
(FPCore (x y z) :precision binary64 (if (<= x -2.25e+108) (fma 3.0 x (+ y y)) (if (<= x 7.5e+76) (fma 2.0 y z) (fma 3.0 x z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -2.25e+108) {
tmp = fma(3.0, x, (y + y));
} else if (x <= 7.5e+76) {
tmp = fma(2.0, y, z);
} else {
tmp = fma(3.0, x, z);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (x <= -2.25e+108) tmp = fma(3.0, x, Float64(y + y)); elseif (x <= 7.5e+76) tmp = fma(2.0, y, z); else tmp = fma(3.0, x, z); end return tmp end
code[x_, y_, z_] := If[LessEqual[x, -2.25e+108], N[(3.0 * x + N[(y + y), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 7.5e+76], N[(2.0 * y + z), $MachinePrecision], N[(3.0 * x + z), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.25 \cdot 10^{+108}:\\
\;\;\;\;\mathsf{fma}\left(3, x, y + y\right)\\
\mathbf{elif}\;x \leq 7.5 \cdot 10^{+76}:\\
\;\;\;\;\mathsf{fma}\left(2, y, z\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(3, x, z\right)\\
\end{array}
\end{array}
if x < -2.25e108Initial program 99.8%
Taylor expanded in z around 0
+-commutativeN/A
distribute-lft-outN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
lower-+.f6488.2
Applied rewrites88.2%
Taylor expanded in x around 0
Applied rewrites88.3%
Applied rewrites88.3%
if -2.25e108 < x < 7.4999999999999995e76Initial program 100.0%
Taylor expanded in x around 0
+-commutativeN/A
lower-fma.f6491.3
Applied rewrites91.3%
if 7.4999999999999995e76 < x Initial program 99.7%
Taylor expanded in y around 0
+-commutativeN/A
associate-+r+N/A
distribute-rgt1-inN/A
metadata-evalN/A
lower-fma.f6487.0
Applied rewrites87.0%
(FPCore (x y z) :precision binary64 (if (or (<= x -2.8e+146) (not (<= x 7.5e+76))) (* 3.0 x) (+ y y)))
double code(double x, double y, double z) {
double tmp;
if ((x <= -2.8e+146) || !(x <= 7.5e+76)) {
tmp = 3.0 * x;
} else {
tmp = y + 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, z)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-2.8d+146)) .or. (.not. (x <= 7.5d+76))) then
tmp = 3.0d0 * x
else
tmp = y + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -2.8e+146) || !(x <= 7.5e+76)) {
tmp = 3.0 * x;
} else {
tmp = y + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -2.8e+146) or not (x <= 7.5e+76): tmp = 3.0 * x else: tmp = y + y return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -2.8e+146) || !(x <= 7.5e+76)) tmp = Float64(3.0 * x); else tmp = Float64(y + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -2.8e+146) || ~((x <= 7.5e+76))) tmp = 3.0 * x; else tmp = y + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -2.8e+146], N[Not[LessEqual[x, 7.5e+76]], $MachinePrecision]], N[(3.0 * x), $MachinePrecision], N[(y + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.8 \cdot 10^{+146} \lor \neg \left(x \leq 7.5 \cdot 10^{+76}\right):\\
\;\;\;\;3 \cdot x\\
\mathbf{else}:\\
\;\;\;\;y + y\\
\end{array}
\end{array}
if x < -2.8000000000000001e146 or 7.4999999999999995e76 < x Initial program 99.7%
Taylor expanded in x around inf
lower-*.f6472.3
Applied rewrites72.3%
if -2.8000000000000001e146 < x < 7.4999999999999995e76Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
distribute-lft-outN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
lower-+.f6456.3
Applied rewrites56.3%
Taylor expanded in x around 0
Applied rewrites47.4%
Applied rewrites47.4%
Final simplification56.5%
(FPCore (x y z) :precision binary64 (+ y y))
double code(double x, double y, double z) {
return y + 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, z)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y + y
end function
public static double code(double x, double y, double z) {
return y + y;
}
def code(x, y, z): return y + y
function code(x, y, z) return Float64(y + y) end
function tmp = code(x, y, z) tmp = y + y; end
code[x_, y_, z_] := N[(y + y), $MachinePrecision]
\begin{array}{l}
\\
y + y
\end{array}
Initial program 99.9%
Taylor expanded in z around 0
+-commutativeN/A
distribute-lft-outN/A
*-commutativeN/A
lower-fma.f64N/A
+-commutativeN/A
lower-+.f6466.0
Applied rewrites66.0%
Taylor expanded in x around 0
Applied rewrites34.7%
Applied rewrites34.7%
herbie shell --seed 2025017
(FPCore (x y z)
:name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendInside from plot-0.2.3.4"
:precision binary64
(+ (+ (+ (+ (+ x y) y) x) z) x))