
(FPCore (x y z) :precision binary64 (* x (- 1.0 (* (- 1.0 y) z))))
double code(double x, double y, double z) {
return x * (1.0 - ((1.0 - y) * z));
}
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 * (1.0d0 - ((1.0d0 - y) * z))
end function
public static double code(double x, double y, double z) {
return x * (1.0 - ((1.0 - y) * z));
}
def code(x, y, z): return x * (1.0 - ((1.0 - y) * z))
function code(x, y, z) return Float64(x * Float64(1.0 - Float64(Float64(1.0 - y) * z))) end
function tmp = code(x, y, z) tmp = x * (1.0 - ((1.0 - y) * z)); end
code[x_, y_, z_] := N[(x * N[(1.0 - N[(N[(1.0 - y), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 - \left(1 - y\right) \cdot z\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 9 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (* x (- 1.0 (* (- 1.0 y) z))))
double code(double x, double y, double z) {
return x * (1.0 - ((1.0 - y) * z));
}
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 * (1.0d0 - ((1.0d0 - y) * z))
end function
public static double code(double x, double y, double z) {
return x * (1.0 - ((1.0 - y) * z));
}
def code(x, y, z): return x * (1.0 - ((1.0 - y) * z))
function code(x, y, z) return Float64(x * Float64(1.0 - Float64(Float64(1.0 - y) * z))) end
function tmp = code(x, y, z) tmp = x * (1.0 - ((1.0 - y) * z)); end
code[x_, y_, z_] := N[(x * N[(1.0 - N[(N[(1.0 - y), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 - \left(1 - y\right) \cdot z\right)
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= z -1.2e-18) (not (<= z 5e-26))) (fma (* (- y 1.0) x) z x) (* x (fma y z 1.0))))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.2e-18) || !(z <= 5e-26)) {
tmp = fma(((y - 1.0) * x), z, x);
} else {
tmp = x * fma(y, z, 1.0);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((z <= -1.2e-18) || !(z <= 5e-26)) tmp = fma(Float64(Float64(y - 1.0) * x), z, x); else tmp = Float64(x * fma(y, z, 1.0)); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.2e-18], N[Not[LessEqual[z, 5e-26]], $MachinePrecision]], N[(N[(N[(y - 1.0), $MachinePrecision] * x), $MachinePrecision] * z + x), $MachinePrecision], N[(x * N[(y * z + 1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.2 \cdot 10^{-18} \lor \neg \left(z \leq 5 \cdot 10^{-26}\right):\\
\;\;\;\;\mathsf{fma}\left(\left(y - 1\right) \cdot x, z, x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot \mathsf{fma}\left(y, z, 1\right)\\
\end{array}
\end{array}
if z < -1.19999999999999997e-18 or 5.00000000000000019e-26 < z Initial program 92.8%
Taylor expanded in x around 0
Applied rewrites100.0%
if -1.19999999999999997e-18 < z < 5.00000000000000019e-26Initial program 99.9%
Taylor expanded in y around 0
Applied rewrites99.9%
Taylor expanded in y around inf
Applied rewrites99.9%
Final simplification99.9%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 y) -50000000.0) (not (<= (- 1.0 y) 1.00000000005))) (fma (* y x) z x) (* x (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - y) <= -50000000.0) || !((1.0 - y) <= 1.00000000005)) {
tmp = fma((y * x), z, x);
} else {
tmp = x * (1.0 - z);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - y) <= -50000000.0) || !(Float64(1.0 - y) <= 1.00000000005)) tmp = fma(Float64(y * x), z, x); else tmp = Float64(x * Float64(1.0 - z)); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - y), $MachinePrecision], -50000000.0], N[Not[LessEqual[N[(1.0 - y), $MachinePrecision], 1.00000000005]], $MachinePrecision]], N[(N[(y * x), $MachinePrecision] * z + x), $MachinePrecision], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - y \leq -50000000 \lor \neg \left(1 - y \leq 1.00000000005\right):\\
\;\;\;\;\mathsf{fma}\left(y \cdot x, z, x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) y) < -5e7 or 1.00000000005 < (-.f64 #s(literal 1 binary64) y) Initial program 92.6%
Taylor expanded in x around 0
Applied rewrites91.8%
Taylor expanded in y around inf
Applied rewrites91.5%
if -5e7 < (-.f64 #s(literal 1 binary64) y) < 1.00000000005Initial program 100.0%
Taylor expanded in y around 0
Applied rewrites99.6%
Final simplification95.5%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 y) -50000000.0) (not (<= (- 1.0 y) 4e+96))) (* (* z x) y) (* x (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - y) <= -50000000.0) || !((1.0 - y) <= 4e+96)) {
tmp = (z * x) * y;
} else {
tmp = x * (1.0 - z);
}
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 (((1.0d0 - y) <= (-50000000.0d0)) .or. (.not. ((1.0d0 - y) <= 4d+96))) then
tmp = (z * x) * y
else
tmp = x * (1.0d0 - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (((1.0 - y) <= -50000000.0) || !((1.0 - y) <= 4e+96)) {
tmp = (z * x) * y;
} else {
tmp = x * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((1.0 - y) <= -50000000.0) or not ((1.0 - y) <= 4e+96): tmp = (z * x) * y else: tmp = x * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - y) <= -50000000.0) || !(Float64(1.0 - y) <= 4e+96)) tmp = Float64(Float64(z * x) * y); else tmp = Float64(x * Float64(1.0 - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((1.0 - y) <= -50000000.0) || ~(((1.0 - y) <= 4e+96))) tmp = (z * x) * y; else tmp = x * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - y), $MachinePrecision], -50000000.0], N[Not[LessEqual[N[(1.0 - y), $MachinePrecision], 4e+96]], $MachinePrecision]], N[(N[(z * x), $MachinePrecision] * y), $MachinePrecision], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - y \leq -50000000 \lor \neg \left(1 - y \leq 4 \cdot 10^{+96}\right):\\
\;\;\;\;\left(z \cdot x\right) \cdot y\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) y) < -5e7 or 4.0000000000000002e96 < (-.f64 #s(literal 1 binary64) y) Initial program 91.2%
Taylor expanded in y around 0
Applied rewrites91.2%
Taylor expanded in y around inf
Applied rewrites78.3%
if -5e7 < (-.f64 #s(literal 1 binary64) y) < 4.0000000000000002e96Initial program 99.9%
Taylor expanded in y around 0
Applied rewrites97.2%
Final simplification89.2%
(FPCore (x y z) :precision binary64 (if (or (<= z -1.36e+26) (not (<= z 1.0))) (* (* (- y 1.0) x) z) (* x (fma y z 1.0))))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.36e+26) || !(z <= 1.0)) {
tmp = ((y - 1.0) * x) * z;
} else {
tmp = x * fma(y, z, 1.0);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((z <= -1.36e+26) || !(z <= 1.0)) tmp = Float64(Float64(Float64(y - 1.0) * x) * z); else tmp = Float64(x * fma(y, z, 1.0)); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.36e+26], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(N[(N[(y - 1.0), $MachinePrecision] * x), $MachinePrecision] * z), $MachinePrecision], N[(x * N[(y * z + 1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.36 \cdot 10^{+26} \lor \neg \left(z \leq 1\right):\\
\;\;\;\;\left(\left(y - 1\right) \cdot x\right) \cdot z\\
\mathbf{else}:\\
\;\;\;\;x \cdot \mathsf{fma}\left(y, z, 1\right)\\
\end{array}
\end{array}
if z < -1.35999999999999993e26 or 1 < z Initial program 92.0%
Taylor expanded in z around inf
Applied rewrites99.3%
if -1.35999999999999993e26 < z < 1Initial program 99.9%
Taylor expanded in y around 0
Applied rewrites99.9%
Taylor expanded in y around inf
Applied rewrites97.6%
Final simplification98.4%
(FPCore (x y z) :precision binary64 (if (or (<= y -1.3e+25) (not (<= y 4.8e-6))) (* x (fma y z 1.0)) (* x (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.3e+25) || !(y <= 4.8e-6)) {
tmp = x * fma(y, z, 1.0);
} else {
tmp = x * (1.0 - z);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if ((y <= -1.3e+25) || !(y <= 4.8e-6)) tmp = Float64(x * fma(y, z, 1.0)); else tmp = Float64(x * Float64(1.0 - z)); end return tmp end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.3e+25], N[Not[LessEqual[y, 4.8e-6]], $MachinePrecision]], N[(x * N[(y * z + 1.0), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.3 \cdot 10^{+25} \lor \neg \left(y \leq 4.8 \cdot 10^{-6}\right):\\
\;\;\;\;x \cdot \mathsf{fma}\left(y, z, 1\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if y < -1.2999999999999999e25 or 4.7999999999999998e-6 < y Initial program 92.3%
Taylor expanded in y around 0
Applied rewrites92.3%
Taylor expanded in y around inf
Applied rewrites92.0%
if -1.2999999999999999e25 < y < 4.7999999999999998e-6Initial program 100.0%
Taylor expanded in y around 0
Applied rewrites99.7%
Final simplification95.9%
(FPCore (x y z) :precision binary64 (if (<= x 50000000000.0) (fma (* (- y 1.0) x) z x) (* x (fma (- y 1.0) z 1.0))))
double code(double x, double y, double z) {
double tmp;
if (x <= 50000000000.0) {
tmp = fma(((y - 1.0) * x), z, x);
} else {
tmp = x * fma((y - 1.0), z, 1.0);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (x <= 50000000000.0) tmp = fma(Float64(Float64(y - 1.0) * x), z, x); else tmp = Float64(x * fma(Float64(y - 1.0), z, 1.0)); end return tmp end
code[x_, y_, z_] := If[LessEqual[x, 50000000000.0], N[(N[(N[(y - 1.0), $MachinePrecision] * x), $MachinePrecision] * z + x), $MachinePrecision], N[(x * N[(N[(y - 1.0), $MachinePrecision] * z + 1.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 50000000000:\\
\;\;\;\;\mathsf{fma}\left(\left(y - 1\right) \cdot x, z, x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot \mathsf{fma}\left(y - 1, z, 1\right)\\
\end{array}
\end{array}
if x < 5e10Initial program 94.9%
Taylor expanded in x around 0
Applied rewrites98.4%
if 5e10 < x Initial program 99.9%
Taylor expanded in y around 0
Applied rewrites99.9%
(FPCore (x y z) :precision binary64 (if (or (<= z -1.0) (not (<= z 1.0))) (* (- x) z) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.0) || !(z <= 1.0)) {
tmp = -x * z;
} else {
tmp = x;
}
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 ((z <= (-1.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = -x * z
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -1.0) || !(z <= 1.0)) {
tmp = -x * z;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.0) or not (z <= 1.0): tmp = -x * z else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.0) || !(z <= 1.0)) tmp = Float64(Float64(-x) * z); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -1.0) || ~((z <= 1.0))) tmp = -x * z; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[((-x) * z), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;\left(-x\right) \cdot z\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -1 or 1 < z Initial program 92.1%
Taylor expanded in z around inf
Applied rewrites99.3%
Taylor expanded in y around 0
Applied rewrites59.3%
if -1 < z < 1Initial program 99.9%
Taylor expanded in z around 0
Applied rewrites70.9%
Final simplification65.4%
(FPCore (x y z) :precision binary64 (* x (- 1.0 z)))
double code(double x, double y, double z) {
return x * (1.0 - z);
}
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 * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return x * (1.0 - z);
}
def code(x, y, z): return x * (1.0 - z)
function code(x, y, z) return Float64(x * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = x * (1.0 - z); end
code[x_, y_, z_] := N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 - z\right)
\end{array}
Initial program 96.2%
Taylor expanded in y around 0
Applied rewrites67.0%
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
return 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
end function
public static double code(double x, double y, double z) {
return x;
}
def code(x, y, z): return x
function code(x, y, z) return x end
function tmp = code(x, y, z) tmp = x; end
code[x_, y_, z_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 96.2%
Taylor expanded in z around 0
Applied rewrites39.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- 1.0 (* (- 1.0 y) z))))
(t_1 (+ x (* (- 1.0 y) (* (- z) x)))))
(if (< t_0 -1.618195973607049e+50)
t_1
(if (< t_0 3.892237649663903e+134) (- (* (* x y) z) (- (* x z) x)) t_1))))
double code(double x, double y, double z) {
double t_0 = x * (1.0 - ((1.0 - y) * z));
double t_1 = x + ((1.0 - y) * (-z * x));
double tmp;
if (t_0 < -1.618195973607049e+50) {
tmp = t_1;
} else if (t_0 < 3.892237649663903e+134) {
tmp = ((x * y) * z) - ((x * z) - x);
} else {
tmp = t_1;
}
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) :: t_0
real(8) :: t_1
real(8) :: tmp
t_0 = x * (1.0d0 - ((1.0d0 - y) * z))
t_1 = x + ((1.0d0 - y) * (-z * x))
if (t_0 < (-1.618195973607049d+50)) then
tmp = t_1
else if (t_0 < 3.892237649663903d+134) then
tmp = ((x * y) * z) - ((x * z) - x)
else
tmp = t_1
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * (1.0 - ((1.0 - y) * z));
double t_1 = x + ((1.0 - y) * (-z * x));
double tmp;
if (t_0 < -1.618195973607049e+50) {
tmp = t_1;
} else if (t_0 < 3.892237649663903e+134) {
tmp = ((x * y) * z) - ((x * z) - x);
} else {
tmp = t_1;
}
return tmp;
}
def code(x, y, z): t_0 = x * (1.0 - ((1.0 - y) * z)) t_1 = x + ((1.0 - y) * (-z * x)) tmp = 0 if t_0 < -1.618195973607049e+50: tmp = t_1 elif t_0 < 3.892237649663903e+134: tmp = ((x * y) * z) - ((x * z) - x) else: tmp = t_1 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(1.0 - Float64(Float64(1.0 - y) * z))) t_1 = Float64(x + Float64(Float64(1.0 - y) * Float64(Float64(-z) * x))) tmp = 0.0 if (t_0 < -1.618195973607049e+50) tmp = t_1; elseif (t_0 < 3.892237649663903e+134) tmp = Float64(Float64(Float64(x * y) * z) - Float64(Float64(x * z) - x)); else tmp = t_1; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * (1.0 - ((1.0 - y) * z)); t_1 = x + ((1.0 - y) * (-z * x)); tmp = 0.0; if (t_0 < -1.618195973607049e+50) tmp = t_1; elseif (t_0 < 3.892237649663903e+134) tmp = ((x * y) * z) - ((x * z) - x); else tmp = t_1; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(1.0 - N[(N[(1.0 - y), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(x + N[(N[(1.0 - y), $MachinePrecision] * N[((-z) * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$0, -1.618195973607049e+50], t$95$1, If[Less[t$95$0, 3.892237649663903e+134], N[(N[(N[(x * y), $MachinePrecision] * z), $MachinePrecision] - N[(N[(x * z), $MachinePrecision] - x), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(1 - \left(1 - y\right) \cdot z\right)\\
t_1 := x + \left(1 - y\right) \cdot \left(\left(-z\right) \cdot x\right)\\
\mathbf{if}\;t\_0 < -1.618195973607049 \cdot 10^{+50}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t\_0 < 3.892237649663903 \cdot 10^{+134}:\\
\;\;\;\;\left(x \cdot y\right) \cdot z - \left(x \cdot z - x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
herbie shell --seed 2025022
(FPCore (x y z)
:name "Data.Colour.RGBSpace.HSV:hsv from colour-2.3.3, J"
:precision binary64
:alt
(! :herbie-platform default (if (< (* x (- 1 (* (- 1 y) z))) -161819597360704900000000000000000000000000000000000) (+ x (* (- 1 y) (* (- z) x))) (if (< (* x (- 1 (* (- 1 y) z))) 389223764966390300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (* (* x y) z) (- (* x z) x)) (+ x (* (- 1 y) (* (- z) x))))))
(* x (- 1.0 (* (- 1.0 y) z))))