
(FPCore (x y z) :precision binary64 (+ (+ (/ x 2.0) (* y x)) z))
double code(double x, double y, double z) {
return ((x / 2.0) + (y * x)) + z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((x / 2.0d0) + (y * x)) + z
end function
public static double code(double x, double y, double z) {
return ((x / 2.0) + (y * x)) + z;
}
def code(x, y, z): return ((x / 2.0) + (y * x)) + z
function code(x, y, z) return Float64(Float64(Float64(x / 2.0) + Float64(y * x)) + z) end
function tmp = code(x, y, z) tmp = ((x / 2.0) + (y * x)) + z; end
code[x_, y_, z_] := N[(N[(N[(x / 2.0), $MachinePrecision] + N[(y * x), $MachinePrecision]), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\left(\frac{x}{2} + y \cdot x\right) + z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (+ (/ x 2.0) (* y x)) z))
double code(double x, double y, double z) {
return ((x / 2.0) + (y * x)) + z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((x / 2.0d0) + (y * x)) + z
end function
public static double code(double x, double y, double z) {
return ((x / 2.0) + (y * x)) + z;
}
def code(x, y, z): return ((x / 2.0) + (y * x)) + z
function code(x, y, z) return Float64(Float64(Float64(x / 2.0) + Float64(y * x)) + z) end
function tmp = code(x, y, z) tmp = ((x / 2.0) + (y * x)) + z; end
code[x_, y_, z_] := N[(N[(N[(x / 2.0), $MachinePrecision] + N[(y * x), $MachinePrecision]), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\left(\frac{x}{2} + y \cdot x\right) + z
\end{array}
(FPCore (x y z) :precision binary64 (+ (+ (/ x 2.0) (* x y)) z))
double code(double x, double y, double z) {
return ((x / 2.0) + (x * y)) + z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = ((x / 2.0d0) + (x * y)) + z
end function
public static double code(double x, double y, double z) {
return ((x / 2.0) + (x * y)) + z;
}
def code(x, y, z): return ((x / 2.0) + (x * y)) + z
function code(x, y, z) return Float64(Float64(Float64(x / 2.0) + Float64(x * y)) + z) end
function tmp = code(x, y, z) tmp = ((x / 2.0) + (x * y)) + z; end
code[x_, y_, z_] := N[(N[(N[(x / 2.0), $MachinePrecision] + N[(x * y), $MachinePrecision]), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\left(\frac{x}{2} + x \cdot y\right) + z
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (or (<= y -0.5) (not (<= y 0.5))) (+ z (* x y)) (+ z (* x 0.5))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -0.5) || !(y <= 0.5)) {
tmp = z + (x * y);
} else {
tmp = z + (x * 0.5);
}
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 ((y <= (-0.5d0)) .or. (.not. (y <= 0.5d0))) then
tmp = z + (x * y)
else
tmp = z + (x * 0.5d0)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -0.5) || !(y <= 0.5)) {
tmp = z + (x * y);
} else {
tmp = z + (x * 0.5);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -0.5) or not (y <= 0.5): tmp = z + (x * y) else: tmp = z + (x * 0.5) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -0.5) || !(y <= 0.5)) tmp = Float64(z + Float64(x * y)); else tmp = Float64(z + Float64(x * 0.5)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -0.5) || ~((y <= 0.5))) tmp = z + (x * y); else tmp = z + (x * 0.5); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -0.5], N[Not[LessEqual[y, 0.5]], $MachinePrecision]], N[(z + N[(x * y), $MachinePrecision]), $MachinePrecision], N[(z + N[(x * 0.5), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -0.5 \lor \neg \left(y \leq 0.5\right):\\
\;\;\;\;z + x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z + x \cdot 0.5\\
\end{array}
\end{array}
if y < -0.5 or 0.5 < y Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around inf 98.3%
if -0.5 < y < 0.5Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 97.6%
*-commutative97.6%
Simplified97.6%
Final simplification98.0%
(FPCore (x y z) :precision binary64 (if (<= y -1.45e+43) (* x y) (if (<= y 8.8e-10) (+ z (* x 0.5)) (* x (+ y 0.5)))))
double code(double x, double y, double z) {
double tmp;
if (y <= -1.45e+43) {
tmp = x * y;
} else if (y <= 8.8e-10) {
tmp = z + (x * 0.5);
} else {
tmp = x * (y + 0.5);
}
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 (y <= (-1.45d+43)) then
tmp = x * y
else if (y <= 8.8d-10) then
tmp = z + (x * 0.5d0)
else
tmp = x * (y + 0.5d0)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -1.45e+43) {
tmp = x * y;
} else if (y <= 8.8e-10) {
tmp = z + (x * 0.5);
} else {
tmp = x * (y + 0.5);
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -1.45e+43: tmp = x * y elif y <= 8.8e-10: tmp = z + (x * 0.5) else: tmp = x * (y + 0.5) return tmp
function code(x, y, z) tmp = 0.0 if (y <= -1.45e+43) tmp = Float64(x * y); elseif (y <= 8.8e-10) tmp = Float64(z + Float64(x * 0.5)); else tmp = Float64(x * Float64(y + 0.5)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -1.45e+43) tmp = x * y; elseif (y <= 8.8e-10) tmp = z + (x * 0.5); else tmp = x * (y + 0.5); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -1.45e+43], N[(x * y), $MachinePrecision], If[LessEqual[y, 8.8e-10], N[(z + N[(x * 0.5), $MachinePrecision]), $MachinePrecision], N[(x * N[(y + 0.5), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.45 \cdot 10^{+43}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;y \leq 8.8 \cdot 10^{-10}:\\
\;\;\;\;z + x \cdot 0.5\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(y + 0.5\right)\\
\end{array}
\end{array}
if y < -1.4500000000000001e43Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around inf 87.0%
associate-+r+87.0%
+-commutative87.0%
associate-+l+87.0%
Simplified87.0%
Taylor expanded in y around inf 78.2%
if -1.4500000000000001e43 < y < 8.7999999999999996e-10Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in y around 0 96.2%
*-commutative96.2%
Simplified96.2%
if 8.7999999999999996e-10 < y Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in x around inf 88.9%
associate-+r+88.9%
+-commutative88.9%
associate-+l+88.9%
Simplified88.9%
Taylor expanded in z around 0 75.4%
Final simplification87.2%
(FPCore (x y z) :precision binary64 (if (<= z -7e+60) z (if (<= z 5.2e+115) (* x (+ y 0.5)) z)))
double code(double x, double y, double z) {
double tmp;
if (z <= -7e+60) {
tmp = z;
} else if (z <= 5.2e+115) {
tmp = x * (y + 0.5);
} else {
tmp = z;
}
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 (z <= (-7d+60)) then
tmp = z
else if (z <= 5.2d+115) then
tmp = x * (y + 0.5d0)
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -7e+60) {
tmp = z;
} else if (z <= 5.2e+115) {
tmp = x * (y + 0.5);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -7e+60: tmp = z elif z <= 5.2e+115: tmp = x * (y + 0.5) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if (z <= -7e+60) tmp = z; elseif (z <= 5.2e+115) tmp = Float64(x * Float64(y + 0.5)); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -7e+60) tmp = z; elseif (z <= 5.2e+115) tmp = x * (y + 0.5); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -7e+60], z, If[LessEqual[z, 5.2e+115], N[(x * N[(y + 0.5), $MachinePrecision]), $MachinePrecision], z]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -7 \cdot 10^{+60}:\\
\;\;\;\;z\\
\mathbf{elif}\;z \leq 5.2 \cdot 10^{+115}:\\
\;\;\;\;x \cdot \left(y + 0.5\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if z < -7.0000000000000004e60 or 5.2000000000000001e115 < z Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in x around 0 77.8%
if -7.0000000000000004e60 < z < 5.2000000000000001e115Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around inf 96.4%
associate-+r+96.4%
+-commutative96.4%
associate-+l+96.4%
Simplified96.4%
Taylor expanded in z around 0 79.3%
(FPCore (x y z) :precision binary64 (if (or (<= y -6.8e+43) (not (<= y 9e+61))) (* x y) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -6.8e+43) || !(y <= 9e+61)) {
tmp = x * y;
} else {
tmp = z;
}
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 ((y <= (-6.8d+43)) .or. (.not. (y <= 9d+61))) then
tmp = x * y
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -6.8e+43) || !(y <= 9e+61)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -6.8e+43) or not (y <= 9e+61): tmp = x * y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -6.8e+43) || !(y <= 9e+61)) tmp = Float64(x * y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -6.8e+43) || ~((y <= 9e+61))) tmp = x * y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -6.8e+43], N[Not[LessEqual[y, 9e+61]], $MachinePrecision]], N[(x * y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.8 \cdot 10^{+43} \lor \neg \left(y \leq 9 \cdot 10^{+61}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -6.80000000000000024e43 or 9e61 < y Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around inf 88.1%
associate-+r+88.1%
+-commutative88.1%
associate-+l+88.1%
Simplified88.1%
Taylor expanded in y around inf 79.1%
if -6.80000000000000024e43 < y < 9e61Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around 0 56.5%
Final simplification65.6%
(FPCore (x y z) :precision binary64 (if (<= z -0.54) z (if (<= z 5.3e-40) (* x 0.5) z)))
double code(double x, double y, double z) {
double tmp;
if (z <= -0.54) {
tmp = z;
} else if (z <= 5.3e-40) {
tmp = x * 0.5;
} else {
tmp = z;
}
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 (z <= (-0.54d0)) then
tmp = z
else if (z <= 5.3d-40) then
tmp = x * 0.5d0
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -0.54) {
tmp = z;
} else if (z <= 5.3e-40) {
tmp = x * 0.5;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -0.54: tmp = z elif z <= 5.3e-40: tmp = x * 0.5 else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if (z <= -0.54) tmp = z; elseif (z <= 5.3e-40) tmp = Float64(x * 0.5); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -0.54) tmp = z; elseif (z <= 5.3e-40) tmp = x * 0.5; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -0.54], z, If[LessEqual[z, 5.3e-40], N[(x * 0.5), $MachinePrecision], z]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -0.54:\\
\;\;\;\;z\\
\mathbf{elif}\;z \leq 5.3 \cdot 10^{-40}:\\
\;\;\;\;x \cdot 0.5\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if z < -0.54000000000000004 or 5.3000000000000002e-40 < z Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around 0 66.6%
if -0.54000000000000004 < z < 5.3000000000000002e-40Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around inf 99.9%
associate-+r+99.9%
+-commutative99.9%
associate-+l+99.9%
Simplified99.9%
Taylor expanded in z around 0 90.5%
Taylor expanded in y around 0 42.0%
*-commutative42.0%
Simplified42.0%
(FPCore (x y z) :precision binary64 (+ z (* x (- y -0.5))))
double code(double x, double y, double z) {
return z + (x * (y - -0.5));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z + (x * (y - (-0.5d0)))
end function
public static double code(double x, double y, double z) {
return z + (x * (y - -0.5));
}
def code(x, y, z): return z + (x * (y - -0.5))
function code(x, y, z) return Float64(z + Float64(x * Float64(y - -0.5))) end
function tmp = code(x, y, z) tmp = z + (x * (y - -0.5)); end
code[x_, y_, z_] := N[(z + N[(x * N[(y - -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z + x \cdot \left(y - -0.5\right)
\end{array}
Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-frac-neg100.0%
sub-neg100.0%
neg-mul-1100.0%
*-commutative100.0%
associate-/l*100.0%
*-commutative100.0%
distribute-rgt-out--100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in x around 0 43.3%
herbie shell --seed 2024150
(FPCore (x y z)
:name "Data.Histogram.Bin.BinF:$cfromIndex from histogram-fill-0.8.4.1"
:precision binary64
(+ (+ (/ x 2.0) (* y x)) z))