
(FPCore (x y z) :precision binary64 (* (+ x y) (+ z 1.0)))
double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x + y) * (z + 1.0d0)
end function
public static double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
def code(x, y, z): return (x + y) * (z + 1.0)
function code(x, y, z) return Float64(Float64(x + y) * Float64(z + 1.0)) end
function tmp = code(x, y, z) tmp = (x + y) * (z + 1.0); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(z + 1\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (* (+ x y) (+ z 1.0)))
double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x + y) * (z + 1.0d0)
end function
public static double code(double x, double y, double z) {
return (x + y) * (z + 1.0);
}
def code(x, y, z): return (x + y) * (z + 1.0)
function code(x, y, z) return Float64(Float64(x + y) * Float64(z + 1.0)) end
function tmp = code(x, y, z) tmp = (x + y) * (z + 1.0); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(z + 1.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(z + 1\right)
\end{array}
(FPCore (x y z) :precision binary64 (* (+ 1.0 z) (+ y x)))
double code(double x, double y, double z) {
return (1.0 + z) * (y + x);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (1.0d0 + z) * (y + x)
end function
public static double code(double x, double y, double z) {
return (1.0 + z) * (y + x);
}
def code(x, y, z): return (1.0 + z) * (y + x)
function code(x, y, z) return Float64(Float64(1.0 + z) * Float64(y + x)) end
function tmp = code(x, y, z) tmp = (1.0 + z) * (y + x); end
code[x_, y_, z_] := N[(N[(1.0 + z), $MachinePrecision] * N[(y + x), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 + z\right) \cdot \left(y + x\right)
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(if (<= (+ 1.0 z) -2e+217)
(* z y)
(if (<= (+ 1.0 z) -200000.0)
(* z x)
(if (<= (+ 1.0 z) 50.0) (+ y x) (* z x)))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -2e+217) {
tmp = z * y;
} else if ((1.0 + z) <= -200000.0) {
tmp = z * x;
} else if ((1.0 + z) <= 50.0) {
tmp = y + x;
} else {
tmp = z * x;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((1.0d0 + z) <= (-2d+217)) then
tmp = z * y
else if ((1.0d0 + z) <= (-200000.0d0)) then
tmp = z * x
else if ((1.0d0 + z) <= 50.0d0) then
tmp = y + x
else
tmp = z * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -2e+217) {
tmp = z * y;
} else if ((1.0 + z) <= -200000.0) {
tmp = z * x;
} else if ((1.0 + z) <= 50.0) {
tmp = y + x;
} else {
tmp = z * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 + z) <= -2e+217: tmp = z * y elif (1.0 + z) <= -200000.0: tmp = z * x elif (1.0 + z) <= 50.0: tmp = y + x else: tmp = z * x return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 + z) <= -2e+217) tmp = Float64(z * y); elseif (Float64(1.0 + z) <= -200000.0) tmp = Float64(z * x); elseif (Float64(1.0 + z) <= 50.0) tmp = Float64(y + x); else tmp = Float64(z * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((1.0 + z) <= -2e+217) tmp = z * y; elseif ((1.0 + z) <= -200000.0) tmp = z * x; elseif ((1.0 + z) <= 50.0) tmp = y + x; else tmp = z * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 + z), $MachinePrecision], -2e+217], N[(z * y), $MachinePrecision], If[LessEqual[N[(1.0 + z), $MachinePrecision], -200000.0], N[(z * x), $MachinePrecision], If[LessEqual[N[(1.0 + z), $MachinePrecision], 50.0], N[(y + x), $MachinePrecision], N[(z * x), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 + z \leq -2 \cdot 10^{+217}:\\
\;\;\;\;z \cdot y\\
\mathbf{elif}\;1 + z \leq -200000:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;1 + z \leq 50:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;z \cdot x\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -1.99999999999999992e217Initial program 100.0%
Taylor expanded in y around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6449.8
Applied rewrites49.8%
Taylor expanded in z around inf
Applied rewrites49.8%
if -1.99999999999999992e217 < (+.f64 z #s(literal 1 binary64)) < -2e5 or 50 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6453.4
Applied rewrites53.4%
Taylor expanded in z around inf
Applied rewrites51.6%
if -2e5 < (+.f64 z #s(literal 1 binary64)) < 50Initial program 99.9%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6497.5
Applied rewrites97.5%
Final simplification74.0%
(FPCore (x y z) :precision binary64 (if (<= (+ y x) -1e-267) (fma z x x) (if (<= (+ y x) 4e+189) (+ y x) (* z y))))
double code(double x, double y, double z) {
double tmp;
if ((y + x) <= -1e-267) {
tmp = fma(z, x, x);
} else if ((y + x) <= 4e+189) {
tmp = y + x;
} else {
tmp = z * y;
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(y + x) <= -1e-267) tmp = fma(z, x, x); elseif (Float64(y + x) <= 4e+189) tmp = Float64(y + x); else tmp = Float64(z * y); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(y + x), $MachinePrecision], -1e-267], N[(z * x + x), $MachinePrecision], If[LessEqual[N[(y + x), $MachinePrecision], 4e+189], N[(y + x), $MachinePrecision], N[(z * y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y + x \leq -1 \cdot 10^{-267}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{elif}\;y + x \leq 4 \cdot 10^{+189}:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;z \cdot y\\
\end{array}
\end{array}
if (+.f64 x y) < -9.9999999999999998e-268Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6452.7
Applied rewrites52.7%
if -9.9999999999999998e-268 < (+.f64 x y) < 4.0000000000000001e189Initial program 99.9%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6458.7
Applied rewrites58.7%
if 4.0000000000000001e189 < (+.f64 x y) Initial program 100.0%
Taylor expanded in y around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6452.0
Applied rewrites52.0%
Taylor expanded in z around inf
Applied rewrites35.2%
Final simplification51.3%
(FPCore (x y z) :precision binary64 (if (<= (+ 1.0 z) -200000.0) (* z x) (if (<= (+ 1.0 z) 50.0) (+ y x) (* z x))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -200000.0) {
tmp = z * x;
} else if ((1.0 + z) <= 50.0) {
tmp = y + x;
} else {
tmp = z * x;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((1.0d0 + z) <= (-200000.0d0)) then
tmp = z * x
else if ((1.0d0 + z) <= 50.0d0) then
tmp = y + x
else
tmp = z * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -200000.0) {
tmp = z * x;
} else if ((1.0 + z) <= 50.0) {
tmp = y + x;
} else {
tmp = z * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 + z) <= -200000.0: tmp = z * x elif (1.0 + z) <= 50.0: tmp = y + x else: tmp = z * x return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 + z) <= -200000.0) tmp = Float64(z * x); elseif (Float64(1.0 + z) <= 50.0) tmp = Float64(y + x); else tmp = Float64(z * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((1.0 + z) <= -200000.0) tmp = z * x; elseif ((1.0 + z) <= 50.0) tmp = y + x; else tmp = z * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 + z), $MachinePrecision], -200000.0], N[(z * x), $MachinePrecision], If[LessEqual[N[(1.0 + z), $MachinePrecision], 50.0], N[(y + x), $MachinePrecision], N[(z * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 + z \leq -200000:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;1 + z \leq 50:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;z \cdot x\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -2e5 or 50 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6453.5
Applied rewrites53.5%
Taylor expanded in z around inf
Applied rewrites52.0%
if -2e5 < (+.f64 z #s(literal 1 binary64)) < 50Initial program 99.9%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6497.5
Applied rewrites97.5%
Final simplification74.4%
(FPCore (x y z) :precision binary64 (if (<= (+ y x) -1e-267) (fma z x x) (fma z y y)))
double code(double x, double y, double z) {
double tmp;
if ((y + x) <= -1e-267) {
tmp = fma(z, x, x);
} else {
tmp = fma(z, y, y);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(y + x) <= -1e-267) tmp = fma(z, x, x); else tmp = fma(z, y, y); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(y + x), $MachinePrecision], -1e-267], N[(z * x + x), $MachinePrecision], N[(z * y + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y + x \leq -1 \cdot 10^{-267}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(z, y, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -9.9999999999999998e-268Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6452.7
Applied rewrites52.7%
if -9.9999999999999998e-268 < (+.f64 x y) Initial program 100.0%
Taylor expanded in y around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6450.2
Applied rewrites50.2%
Final simplification51.5%
(FPCore (x y z) :precision binary64 (+ y x))
double code(double x, double y, double z) {
return y + x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y + x
end function
public static double code(double x, double y, double z) {
return y + x;
}
def code(x, y, z): return y + x
function code(x, y, z) return Float64(y + x) end
function tmp = code(x, y, z) tmp = y + x; end
code[x_, y_, z_] := N[(y + x), $MachinePrecision]
\begin{array}{l}
\\
y + x
\end{array}
Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6449.9
Applied rewrites49.9%
herbie shell --seed 2024279
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
:precision binary64
(* (+ x y) (+ z 1.0)))