
(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+227) (* z x) (if (<= (+ 1.0 z) -200.0) (* z y) (if (<= (+ 1.0 z) 2.0) (+ y x) (* z y)))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -2e+227) {
tmp = z * x;
} else if ((1.0 + z) <= -200.0) {
tmp = z * y;
} else if ((1.0 + z) <= 2.0) {
tmp = y + x;
} else {
tmp = z * y;
}
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+227)) then
tmp = z * x
else if ((1.0d0 + z) <= (-200.0d0)) then
tmp = z * y
else if ((1.0d0 + z) <= 2.0d0) then
tmp = y + x
else
tmp = z * y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -2e+227) {
tmp = z * x;
} else if ((1.0 + z) <= -200.0) {
tmp = z * y;
} else if ((1.0 + z) <= 2.0) {
tmp = y + x;
} else {
tmp = z * y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 + z) <= -2e+227: tmp = z * x elif (1.0 + z) <= -200.0: tmp = z * y elif (1.0 + z) <= 2.0: tmp = y + x else: tmp = z * y return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 + z) <= -2e+227) tmp = Float64(z * x); elseif (Float64(1.0 + z) <= -200.0) tmp = Float64(z * y); elseif (Float64(1.0 + z) <= 2.0) tmp = Float64(y + x); else tmp = Float64(z * y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((1.0 + z) <= -2e+227) tmp = z * x; elseif ((1.0 + z) <= -200.0) tmp = z * y; elseif ((1.0 + z) <= 2.0) tmp = y + x; else tmp = z * y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 + z), $MachinePrecision], -2e+227], N[(z * x), $MachinePrecision], If[LessEqual[N[(1.0 + z), $MachinePrecision], -200.0], N[(z * y), $MachinePrecision], If[LessEqual[N[(1.0 + z), $MachinePrecision], 2.0], N[(y + x), $MachinePrecision], N[(z * y), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 + z \leq -2 \cdot 10^{+227}:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;1 + z \leq -200:\\
\;\;\;\;z \cdot y\\
\mathbf{elif}\;1 + z \leq 2:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;z \cdot y\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -2.0000000000000002e227Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6473.8
Applied rewrites73.8%
Taylor expanded in z around inf
Applied rewrites73.8%
if -2.0000000000000002e227 < (+.f64 z #s(literal 1 binary64)) < -200 or 2 < (+.f64 z #s(literal 1 binary64)) Initial program 100.0%
Taylor expanded in y around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6447.2
Applied rewrites47.2%
Taylor expanded in z around inf
Applied rewrites45.6%
if -200 < (+.f64 z #s(literal 1 binary64)) < 2Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6497.3
Applied rewrites97.3%
Final simplification77.7%
(FPCore (x y z) :precision binary64 (if (<= (+ 1.0 z) -200.0) (* z x) (if (<= (+ 1.0 z) 4000.0) (+ y x) (* z x))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 + z) <= -200.0) {
tmp = z * x;
} else if ((1.0 + z) <= 4000.0) {
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) <= (-200.0d0)) then
tmp = z * x
else if ((1.0d0 + z) <= 4000.0d0) 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) <= -200.0) {
tmp = z * x;
} else if ((1.0 + z) <= 4000.0) {
tmp = y + x;
} else {
tmp = z * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 + z) <= -200.0: tmp = z * x elif (1.0 + z) <= 4000.0: tmp = y + x else: tmp = z * x return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 + z) <= -200.0) tmp = Float64(z * x); elseif (Float64(1.0 + z) <= 4000.0) 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) <= -200.0) tmp = z * x; elseif ((1.0 + z) <= 4000.0) tmp = y + x; else tmp = z * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 + z), $MachinePrecision], -200.0], N[(z * x), $MachinePrecision], If[LessEqual[N[(1.0 + z), $MachinePrecision], 4000.0], N[(y + x), $MachinePrecision], N[(z * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 + z \leq -200:\\
\;\;\;\;z \cdot x\\
\mathbf{elif}\;1 + z \leq 4000:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;z \cdot x\\
\end{array}
\end{array}
if (+.f64 z #s(literal 1 binary64)) < -200 or 4e3 < (+.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.f6460.4
Applied rewrites60.4%
Taylor expanded in z around inf
Applied rewrites59.7%
if -200 < (+.f64 z #s(literal 1 binary64)) < 4e3Initial program 100.0%
Taylor expanded in z around 0
+-commutativeN/A
lower-+.f6496.7
Applied rewrites96.7%
Final simplification81.1%
(FPCore (x y z) :precision binary64 (if (<= (+ y x) -5e-265) (* (+ 1.0 z) x) (fma z y y)))
double code(double x, double y, double z) {
double tmp;
if ((y + x) <= -5e-265) {
tmp = (1.0 + z) * x;
} else {
tmp = fma(z, y, y);
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (Float64(y + x) <= -5e-265) tmp = Float64(Float64(1.0 + z) * x); else tmp = fma(z, y, y); end return tmp end
code[x_, y_, z_] := If[LessEqual[N[(y + x), $MachinePrecision], -5e-265], N[(N[(1.0 + z), $MachinePrecision] * x), $MachinePrecision], N[(z * y + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y + x \leq -5 \cdot 10^{-265}:\\
\;\;\;\;\left(1 + z\right) \cdot x\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(z, y, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -5.0000000000000001e-265Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6455.6
Applied rewrites55.6%
Applied rewrites55.6%
if -5.0000000000000001e-265 < (+.f64 x y) Initial program 100.0%
Taylor expanded in y around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6453.3
Applied rewrites53.3%
Final simplification54.5%
(FPCore (x y z) :precision binary64 (if (<= (+ y x) -5e-265) (fma z x x) (fma z y y)))
double code(double x, double y, double z) {
double tmp;
if ((y + x) <= -5e-265) {
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) <= -5e-265) 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], -5e-265], N[(z * x + x), $MachinePrecision], N[(z * y + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y + x \leq -5 \cdot 10^{-265}:\\
\;\;\;\;\mathsf{fma}\left(z, x, x\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(z, y, y\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -5.0000000000000001e-265Initial program 100.0%
Taylor expanded in y around 0
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6455.6
Applied rewrites55.6%
if -5.0000000000000001e-265 < (+.f64 x y) Initial program 100.0%
Taylor expanded in y around inf
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
lower-fma.f6453.3
Applied rewrites53.3%
Final simplification54.5%
(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-+.f6457.0
Applied rewrites57.0%
herbie shell --seed 2024255
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, G"
:precision binary64
(* (+ x y) (+ z 1.0)))