
(FPCore (d1 d2 d3) :precision binary64 (+ (+ (* d1 3.0) (* d1 d2)) (* d1 d3)))
double code(double d1, double d2, double d3) {
return ((d1 * 3.0) + (d1 * d2)) + (d1 * d3);
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = ((d1 * 3.0d0) + (d1 * d2)) + (d1 * d3)
end function
public static double code(double d1, double d2, double d3) {
return ((d1 * 3.0) + (d1 * d2)) + (d1 * d3);
}
def code(d1, d2, d3): return ((d1 * 3.0) + (d1 * d2)) + (d1 * d3)
function code(d1, d2, d3) return Float64(Float64(Float64(d1 * 3.0) + Float64(d1 * d2)) + Float64(d1 * d3)) end
function tmp = code(d1, d2, d3) tmp = ((d1 * 3.0) + (d1 * d2)) + (d1 * d3); end
code[d1_, d2_, d3_] := N[(N[(N[(d1 * 3.0), $MachinePrecision] + N[(d1 * d2), $MachinePrecision]), $MachinePrecision] + N[(d1 * d3), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(d1 \cdot 3 + d1 \cdot d2\right) + d1 \cdot d3
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (d1 d2 d3) :precision binary64 (+ (+ (* d1 3.0) (* d1 d2)) (* d1 d3)))
double code(double d1, double d2, double d3) {
return ((d1 * 3.0) + (d1 * d2)) + (d1 * d3);
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = ((d1 * 3.0d0) + (d1 * d2)) + (d1 * d3)
end function
public static double code(double d1, double d2, double d3) {
return ((d1 * 3.0) + (d1 * d2)) + (d1 * d3);
}
def code(d1, d2, d3): return ((d1 * 3.0) + (d1 * d2)) + (d1 * d3)
function code(d1, d2, d3) return Float64(Float64(Float64(d1 * 3.0) + Float64(d1 * d2)) + Float64(d1 * d3)) end
function tmp = code(d1, d2, d3) tmp = ((d1 * 3.0) + (d1 * d2)) + (d1 * d3); end
code[d1_, d2_, d3_] := N[(N[(N[(d1 * 3.0), $MachinePrecision] + N[(d1 * d2), $MachinePrecision]), $MachinePrecision] + N[(d1 * d3), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(d1 \cdot 3 + d1 \cdot d2\right) + d1 \cdot d3
\end{array}
(FPCore (d1 d2 d3) :precision binary64 (* d1 (+ d2 (- d3 -3.0))))
double code(double d1, double d2, double d3) {
return d1 * (d2 + (d3 - -3.0));
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = d1 * (d2 + (d3 - (-3.0d0)))
end function
public static double code(double d1, double d2, double d3) {
return d1 * (d2 + (d3 - -3.0));
}
def code(d1, d2, d3): return d1 * (d2 + (d3 - -3.0))
function code(d1, d2, d3) return Float64(d1 * Float64(d2 + Float64(d3 - -3.0))) end
function tmp = code(d1, d2, d3) tmp = d1 * (d2 + (d3 - -3.0)); end
code[d1_, d2_, d3_] := N[(d1 * N[(d2 + N[(d3 - -3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
d1 \cdot \left(d2 + \left(d3 - -3\right)\right)
\end{array}
Initial program 99.5%
+-commutative99.5%
associate-+r+99.5%
distribute-lft-out99.5%
*-commutative99.5%
cancel-sign-sub99.5%
distribute-lft-neg-in99.5%
distribute-rgt-neg-in99.5%
*-commutative99.5%
distribute-lft-neg-in99.5%
distribute-rgt-neg-in99.5%
neg-mul-199.5%
*-commutative99.5%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Final simplification99.9%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d3 -2.55e-101) (* d1 d3) (if (<= d3 55000.0) (* d1 3.0) (* d1 d3))))
double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= -2.55e-101) {
tmp = d1 * d3;
} else if (d3 <= 55000.0) {
tmp = d1 * 3.0;
} else {
tmp = d1 * d3;
}
return tmp;
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
real(8) :: tmp
if (d3 <= (-2.55d-101)) then
tmp = d1 * d3
else if (d3 <= 55000.0d0) then
tmp = d1 * 3.0d0
else
tmp = d1 * d3
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= -2.55e-101) {
tmp = d1 * d3;
} else if (d3 <= 55000.0) {
tmp = d1 * 3.0;
} else {
tmp = d1 * d3;
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d3 <= -2.55e-101: tmp = d1 * d3 elif d3 <= 55000.0: tmp = d1 * 3.0 else: tmp = d1 * d3 return tmp
function code(d1, d2, d3) tmp = 0.0 if (d3 <= -2.55e-101) tmp = Float64(d1 * d3); elseif (d3 <= 55000.0) tmp = Float64(d1 * 3.0); else tmp = Float64(d1 * d3); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d3 <= -2.55e-101) tmp = d1 * d3; elseif (d3 <= 55000.0) tmp = d1 * 3.0; else tmp = d1 * d3; end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d3, -2.55e-101], N[(d1 * d3), $MachinePrecision], If[LessEqual[d3, 55000.0], N[(d1 * 3.0), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d3 \leq -2.55 \cdot 10^{-101}:\\
\;\;\;\;d1 \cdot d3\\
\mathbf{elif}\;d3 \leq 55000:\\
\;\;\;\;d1 \cdot 3\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\
\end{array}
\end{array}
if d3 < -2.5500000000000001e-101 or 55000 < d3 Initial program 99.2%
+-commutative99.2%
associate-+r+99.2%
distribute-lft-out99.2%
*-commutative99.2%
cancel-sign-sub99.2%
distribute-lft-neg-in99.2%
distribute-rgt-neg-in99.2%
*-commutative99.2%
distribute-lft-neg-in99.2%
distribute-rgt-neg-in99.2%
neg-mul-199.2%
*-commutative99.2%
distribute-lft-out--100.0%
*-commutative100.0%
neg-mul-1100.0%
distribute-neg-in100.0%
unsub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around inf 68.7%
if -2.5500000000000001e-101 < d3 < 55000Initial program 99.9%
+-commutative99.9%
associate-+r+99.9%
distribute-lft-out99.9%
*-commutative99.9%
cancel-sign-sub99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
*-commutative99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
neg-mul-199.9%
*-commutative99.9%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in d2 around 0 50.7%
Taylor expanded in d3 around 0 49.5%
Final simplification59.9%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d3 -1.4e-292) (* d1 d2) (if (<= d3 55000.0) (* d1 3.0) (* d1 d3))))
double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= -1.4e-292) {
tmp = d1 * d2;
} else if (d3 <= 55000.0) {
tmp = d1 * 3.0;
} else {
tmp = d1 * d3;
}
return tmp;
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
real(8) :: tmp
if (d3 <= (-1.4d-292)) then
tmp = d1 * d2
else if (d3 <= 55000.0d0) then
tmp = d1 * 3.0d0
else
tmp = d1 * d3
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= -1.4e-292) {
tmp = d1 * d2;
} else if (d3 <= 55000.0) {
tmp = d1 * 3.0;
} else {
tmp = d1 * d3;
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d3 <= -1.4e-292: tmp = d1 * d2 elif d3 <= 55000.0: tmp = d1 * 3.0 else: tmp = d1 * d3 return tmp
function code(d1, d2, d3) tmp = 0.0 if (d3 <= -1.4e-292) tmp = Float64(d1 * d2); elseif (d3 <= 55000.0) tmp = Float64(d1 * 3.0); else tmp = Float64(d1 * d3); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d3 <= -1.4e-292) tmp = d1 * d2; elseif (d3 <= 55000.0) tmp = d1 * 3.0; else tmp = d1 * d3; end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d3, -1.4e-292], N[(d1 * d2), $MachinePrecision], If[LessEqual[d3, 55000.0], N[(d1 * 3.0), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d3 \leq -1.4 \cdot 10^{-292}:\\
\;\;\;\;d1 \cdot d2\\
\mathbf{elif}\;d3 \leq 55000:\\
\;\;\;\;d1 \cdot 3\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\
\end{array}
\end{array}
if d3 < -1.4000000000000001e-292Initial program 99.9%
+-commutative99.9%
associate-+r+99.9%
distribute-lft-out99.9%
*-commutative99.9%
cancel-sign-sub99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
*-commutative99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
neg-mul-199.9%
*-commutative99.9%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in d2 around inf 43.8%
if -1.4000000000000001e-292 < d3 < 55000Initial program 99.9%
+-commutative99.9%
associate-+r+99.9%
distribute-lft-out99.9%
*-commutative99.9%
cancel-sign-sub99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
*-commutative99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
neg-mul-199.9%
*-commutative99.9%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in d2 around 0 55.7%
Taylor expanded in d3 around 0 53.8%
if 55000 < d3 Initial program 98.3%
+-commutative98.3%
associate-+r+98.3%
distribute-lft-out98.3%
*-commutative98.3%
cancel-sign-sub98.3%
distribute-lft-neg-in98.3%
distribute-rgt-neg-in98.3%
*-commutative98.3%
distribute-lft-neg-in98.3%
distribute-rgt-neg-in98.3%
neg-mul-198.3%
*-commutative98.3%
distribute-lft-out--100.0%
*-commutative100.0%
neg-mul-1100.0%
distribute-neg-in100.0%
unsub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around inf 77.4%
Final simplification54.6%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d2 -1.3e+25) (* d1 d2) (* d1 (+ d3 3.0))))
double code(double d1, double d2, double d3) {
double tmp;
if (d2 <= -1.3e+25) {
tmp = d1 * d2;
} else {
tmp = d1 * (d3 + 3.0);
}
return tmp;
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
real(8) :: tmp
if (d2 <= (-1.3d+25)) then
tmp = d1 * d2
else
tmp = d1 * (d3 + 3.0d0)
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d2 <= -1.3e+25) {
tmp = d1 * d2;
} else {
tmp = d1 * (d3 + 3.0);
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d2 <= -1.3e+25: tmp = d1 * d2 else: tmp = d1 * (d3 + 3.0) return tmp
function code(d1, d2, d3) tmp = 0.0 if (d2 <= -1.3e+25) tmp = Float64(d1 * d2); else tmp = Float64(d1 * Float64(d3 + 3.0)); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d2 <= -1.3e+25) tmp = d1 * d2; else tmp = d1 * (d3 + 3.0); end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d2, -1.3e+25], N[(d1 * d2), $MachinePrecision], N[(d1 * N[(d3 + 3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d2 \leq -1.3 \cdot 10^{+25}:\\
\;\;\;\;d1 \cdot d2\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot \left(d3 + 3\right)\\
\end{array}
\end{array}
if d2 < -1.2999999999999999e25Initial program 98.5%
+-commutative98.5%
associate-+r+98.5%
distribute-lft-out98.5%
*-commutative98.5%
cancel-sign-sub98.5%
distribute-lft-neg-in98.5%
distribute-rgt-neg-in98.5%
*-commutative98.5%
distribute-lft-neg-in98.5%
distribute-rgt-neg-in98.5%
neg-mul-198.5%
*-commutative98.5%
distribute-lft-out--100.0%
*-commutative100.0%
neg-mul-1100.0%
distribute-neg-in100.0%
unsub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around inf 79.6%
if -1.2999999999999999e25 < d2 Initial program 99.9%
+-commutative99.9%
associate-+r+99.9%
distribute-lft-out99.9%
*-commutative99.9%
cancel-sign-sub99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
*-commutative99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
neg-mul-199.9%
*-commutative99.9%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in d2 around 0 76.1%
Final simplification77.0%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d3 8.2e+23) (* d1 (+ d2 3.0)) (* d1 d3)))
double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= 8.2e+23) {
tmp = d1 * (d2 + 3.0);
} else {
tmp = d1 * d3;
}
return tmp;
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
real(8) :: tmp
if (d3 <= 8.2d+23) then
tmp = d1 * (d2 + 3.0d0)
else
tmp = d1 * d3
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= 8.2e+23) {
tmp = d1 * (d2 + 3.0);
} else {
tmp = d1 * d3;
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d3 <= 8.2e+23: tmp = d1 * (d2 + 3.0) else: tmp = d1 * d3 return tmp
function code(d1, d2, d3) tmp = 0.0 if (d3 <= 8.2e+23) tmp = Float64(d1 * Float64(d2 + 3.0)); else tmp = Float64(d1 * d3); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d3 <= 8.2e+23) tmp = d1 * (d2 + 3.0); else tmp = d1 * d3; end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d3, 8.2e+23], N[(d1 * N[(d2 + 3.0), $MachinePrecision]), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d3 \leq 8.2 \cdot 10^{+23}:\\
\;\;\;\;d1 \cdot \left(d2 + 3\right)\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\
\end{array}
\end{array}
if d3 < 8.19999999999999992e23Initial program 99.9%
+-commutative99.9%
associate-+r+99.9%
distribute-lft-out99.9%
*-commutative99.9%
cancel-sign-sub99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
*-commutative99.9%
distribute-lft-neg-in99.9%
distribute-rgt-neg-in99.9%
neg-mul-199.9%
*-commutative99.9%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in d3 around 0 77.6%
if 8.19999999999999992e23 < d3 Initial program 98.2%
+-commutative98.2%
associate-+r+98.2%
distribute-lft-out98.2%
*-commutative98.2%
cancel-sign-sub98.2%
distribute-lft-neg-in98.2%
distribute-rgt-neg-in98.2%
*-commutative98.2%
distribute-lft-neg-in98.2%
distribute-rgt-neg-in98.2%
neg-mul-198.2%
*-commutative98.2%
distribute-lft-out--100.0%
*-commutative100.0%
neg-mul-1100.0%
distribute-neg-in100.0%
unsub-neg100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around inf 80.0%
Final simplification78.2%
(FPCore (d1 d2 d3) :precision binary64 (* d1 3.0))
double code(double d1, double d2, double d3) {
return d1 * 3.0;
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = d1 * 3.0d0
end function
public static double code(double d1, double d2, double d3) {
return d1 * 3.0;
}
def code(d1, d2, d3): return d1 * 3.0
function code(d1, d2, d3) return Float64(d1 * 3.0) end
function tmp = code(d1, d2, d3) tmp = d1 * 3.0; end
code[d1_, d2_, d3_] := N[(d1 * 3.0), $MachinePrecision]
\begin{array}{l}
\\
d1 \cdot 3
\end{array}
Initial program 99.5%
+-commutative99.5%
associate-+r+99.5%
distribute-lft-out99.5%
*-commutative99.5%
cancel-sign-sub99.5%
distribute-lft-neg-in99.5%
distribute-rgt-neg-in99.5%
*-commutative99.5%
distribute-lft-neg-in99.5%
distribute-rgt-neg-in99.5%
neg-mul-199.5%
*-commutative99.5%
distribute-lft-out--99.9%
*-commutative99.9%
neg-mul-199.9%
distribute-neg-in99.9%
unsub-neg99.9%
metadata-eval99.9%
Simplified99.9%
Taylor expanded in d2 around 0 64.3%
Taylor expanded in d3 around 0 27.8%
Final simplification27.8%
(FPCore (d1 d2 d3) :precision binary64 (* d1 (+ (+ 3.0 d2) d3)))
double code(double d1, double d2, double d3) {
return d1 * ((3.0 + d2) + d3);
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = d1 * ((3.0d0 + d2) + d3)
end function
public static double code(double d1, double d2, double d3) {
return d1 * ((3.0 + d2) + d3);
}
def code(d1, d2, d3): return d1 * ((3.0 + d2) + d3)
function code(d1, d2, d3) return Float64(d1 * Float64(Float64(3.0 + d2) + d3)) end
function tmp = code(d1, d2, d3) tmp = d1 * ((3.0 + d2) + d3); end
code[d1_, d2_, d3_] := N[(d1 * N[(N[(3.0 + d2), $MachinePrecision] + d3), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
d1 \cdot \left(\left(3 + d2\right) + d3\right)
\end{array}
herbie shell --seed 2023272
(FPCore (d1 d2 d3)
:name "FastMath test3"
:precision binary64
:herbie-target
(* d1 (+ (+ 3.0 d2) d3))
(+ (+ (* d1 3.0) (* d1 d2)) (* d1 d3)))