
(FPCore (d1 d2 d3) :precision binary64 (+ (+ (* d1 d2) (* (+ d3 5.0) d1)) (* d1 32.0)))
double code(double d1, double d2, double d3) {
return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
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 + 5.0d0) * d1)) + (d1 * 32.0d0)
end function
public static double code(double d1, double d2, double d3) {
return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
def code(d1, d2, d3): return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0)
function code(d1, d2, d3) return Float64(Float64(Float64(d1 * d2) + Float64(Float64(d3 + 5.0) * d1)) + Float64(d1 * 32.0)) end
function tmp = code(d1, d2, d3) tmp = ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0); end
code[d1_, d2_, d3_] := N[(N[(N[(d1 * d2), $MachinePrecision] + N[(N[(d3 + 5.0), $MachinePrecision] * d1), $MachinePrecision]), $MachinePrecision] + N[(d1 * 32.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (d1 d2 d3) :precision binary64 (+ (+ (* d1 d2) (* (+ d3 5.0) d1)) (* d1 32.0)))
double code(double d1, double d2, double d3) {
return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
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 + 5.0d0) * d1)) + (d1 * 32.0d0)
end function
public static double code(double d1, double d2, double d3) {
return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
def code(d1, d2, d3): return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0)
function code(d1, d2, d3) return Float64(Float64(Float64(d1 * d2) + Float64(Float64(d3 + 5.0) * d1)) + Float64(d1 * 32.0)) end
function tmp = code(d1, d2, d3) tmp = ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0); end
code[d1_, d2_, d3_] := N[(N[(N[(d1 * d2), $MachinePrecision] + N[(N[(d3 + 5.0), $MachinePrecision] * d1), $MachinePrecision]), $MachinePrecision] + N[(d1 * 32.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32
\end{array}
(FPCore (d1 d2 d3) :precision binary64 (* d1 (+ (+ d2 37.0) d3)))
double code(double d1, double d2, double d3) {
return d1 * ((d2 + 37.0) + 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 * ((d2 + 37.0d0) + d3)
end function
public static double code(double d1, double d2, double d3) {
return d1 * ((d2 + 37.0) + d3);
}
def code(d1, d2, d3): return d1 * ((d2 + 37.0) + d3)
function code(d1, d2, d3) return Float64(d1 * Float64(Float64(d2 + 37.0) + d3)) end
function tmp = code(d1, d2, d3) tmp = d1 * ((d2 + 37.0) + d3); end
code[d1_, d2_, d3_] := N[(d1 * N[(N[(d2 + 37.0), $MachinePrecision] + d3), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
d1 \cdot \left(\left(d2 + 37\right) + d3\right)
\end{array}
Initial program 98.4%
+-commutative98.4%
*-commutative98.4%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d3 -4.8e-303) (* d1 d2) (if (<= d3 3.25) (* d1 37.0) (* d1 d3))))
double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= -4.8e-303) {
tmp = d1 * d2;
} else if (d3 <= 3.25) {
tmp = d1 * 37.0;
} 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 <= (-4.8d-303)) then
tmp = d1 * d2
else if (d3 <= 3.25d0) then
tmp = d1 * 37.0d0
else
tmp = d1 * d3
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= -4.8e-303) {
tmp = d1 * d2;
} else if (d3 <= 3.25) {
tmp = d1 * 37.0;
} else {
tmp = d1 * d3;
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d3 <= -4.8e-303: tmp = d1 * d2 elif d3 <= 3.25: tmp = d1 * 37.0 else: tmp = d1 * d3 return tmp
function code(d1, d2, d3) tmp = 0.0 if (d3 <= -4.8e-303) tmp = Float64(d1 * d2); elseif (d3 <= 3.25) tmp = Float64(d1 * 37.0); else tmp = Float64(d1 * d3); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d3 <= -4.8e-303) tmp = d1 * d2; elseif (d3 <= 3.25) tmp = d1 * 37.0; else tmp = d1 * d3; end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d3, -4.8e-303], N[(d1 * d2), $MachinePrecision], If[LessEqual[d3, 3.25], N[(d1 * 37.0), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d3 \leq -4.8 \cdot 10^{-303}:\\
\;\;\;\;d1 \cdot d2\\
\mathbf{elif}\;d3 \leq 3.25:\\
\;\;\;\;d1 \cdot 37\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\
\end{array}
\end{array}
if d3 < -4.8000000000000002e-303Initial program 98.2%
+-commutative98.2%
*-commutative98.2%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around inf 40.0%
if -4.8000000000000002e-303 < d3 < 3.25Initial program 99.9%
+-commutative99.9%
*-commutative99.9%
distribute-lft-out99.9%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around 0 57.4%
Taylor expanded in d3 around 0 55.2%
if 3.25 < d3 Initial program 97.4%
+-commutative97.4%
*-commutative97.4%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around inf 79.6%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d2 -8300000000.0) (* d1 (+ d2 37.0)) (* d1 (+ 37.0 d3))))
double code(double d1, double d2, double d3) {
double tmp;
if (d2 <= -8300000000.0) {
tmp = d1 * (d2 + 37.0);
} else {
tmp = d1 * (37.0 + 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 (d2 <= (-8300000000.0d0)) then
tmp = d1 * (d2 + 37.0d0)
else
tmp = d1 * (37.0d0 + d3)
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d2 <= -8300000000.0) {
tmp = d1 * (d2 + 37.0);
} else {
tmp = d1 * (37.0 + d3);
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d2 <= -8300000000.0: tmp = d1 * (d2 + 37.0) else: tmp = d1 * (37.0 + d3) return tmp
function code(d1, d2, d3) tmp = 0.0 if (d2 <= -8300000000.0) tmp = Float64(d1 * Float64(d2 + 37.0)); else tmp = Float64(d1 * Float64(37.0 + d3)); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d2 <= -8300000000.0) tmp = d1 * (d2 + 37.0); else tmp = d1 * (37.0 + d3); end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d2, -8300000000.0], N[(d1 * N[(d2 + 37.0), $MachinePrecision]), $MachinePrecision], N[(d1 * N[(37.0 + d3), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d2 \leq -8300000000:\\
\;\;\;\;d1 \cdot \left(d2 + 37\right)\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot \left(37 + d3\right)\\
\end{array}
\end{array}
if d2 < -8.3e9Initial program 95.9%
+-commutative95.9%
*-commutative95.9%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around 0 81.6%
if -8.3e9 < d2 Initial program 99.0%
+-commutative99.0%
*-commutative99.0%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around 0 78.7%
Final simplification79.3%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d3 200.0) (* d1 (+ d2 37.0)) (* d1 d3)))
double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= 200.0) {
tmp = d1 * (d2 + 37.0);
} 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 <= 200.0d0) then
tmp = d1 * (d2 + 37.0d0)
else
tmp = d1 * d3
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d3 <= 200.0) {
tmp = d1 * (d2 + 37.0);
} else {
tmp = d1 * d3;
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d3 <= 200.0: tmp = d1 * (d2 + 37.0) else: tmp = d1 * d3 return tmp
function code(d1, d2, d3) tmp = 0.0 if (d3 <= 200.0) tmp = Float64(d1 * Float64(d2 + 37.0)); else tmp = Float64(d1 * d3); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d3 <= 200.0) tmp = d1 * (d2 + 37.0); else tmp = d1 * d3; end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d3, 200.0], N[(d1 * N[(d2 + 37.0), $MachinePrecision]), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d3 \leq 200:\\
\;\;\;\;d1 \cdot \left(d2 + 37\right)\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\
\end{array}
\end{array}
if d3 < 200Initial program 98.8%
+-commutative98.8%
*-commutative98.8%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around 0 72.7%
if 200 < d3 Initial program 97.4%
+-commutative97.4%
*-commutative97.4%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d3 around inf 79.6%
Final simplification74.8%
(FPCore (d1 d2 d3) :precision binary64 (if (<= d2 -13500000.0) (* d1 d2) (* d1 37.0)))
double code(double d1, double d2, double d3) {
double tmp;
if (d2 <= -13500000.0) {
tmp = d1 * d2;
} else {
tmp = d1 * 37.0;
}
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 <= (-13500000.0d0)) then
tmp = d1 * d2
else
tmp = d1 * 37.0d0
end if
code = tmp
end function
public static double code(double d1, double d2, double d3) {
double tmp;
if (d2 <= -13500000.0) {
tmp = d1 * d2;
} else {
tmp = d1 * 37.0;
}
return tmp;
}
def code(d1, d2, d3): tmp = 0 if d2 <= -13500000.0: tmp = d1 * d2 else: tmp = d1 * 37.0 return tmp
function code(d1, d2, d3) tmp = 0.0 if (d2 <= -13500000.0) tmp = Float64(d1 * d2); else tmp = Float64(d1 * 37.0); end return tmp end
function tmp_2 = code(d1, d2, d3) tmp = 0.0; if (d2 <= -13500000.0) tmp = d1 * d2; else tmp = d1 * 37.0; end tmp_2 = tmp; end
code[d1_, d2_, d3_] := If[LessEqual[d2, -13500000.0], N[(d1 * d2), $MachinePrecision], N[(d1 * 37.0), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;d2 \leq -13500000:\\
\;\;\;\;d1 \cdot d2\\
\mathbf{else}:\\
\;\;\;\;d1 \cdot 37\\
\end{array}
\end{array}
if d2 < -1.35e7Initial program 96.0%
+-commutative96.0%
*-commutative96.0%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around inf 80.0%
if -1.35e7 < d2 Initial program 99.0%
+-commutative99.0%
*-commutative99.0%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around 0 78.6%
Taylor expanded in d3 around 0 30.7%
(FPCore (d1 d2 d3) :precision binary64 (* d1 37.0))
double code(double d1, double d2, double d3) {
return d1 * 37.0;
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = d1 * 37.0d0
end function
public static double code(double d1, double d2, double d3) {
return d1 * 37.0;
}
def code(d1, d2, d3): return d1 * 37.0
function code(d1, d2, d3) return Float64(d1 * 37.0) end
function tmp = code(d1, d2, d3) tmp = d1 * 37.0; end
code[d1_, d2_, d3_] := N[(d1 * 37.0), $MachinePrecision]
\begin{array}{l}
\\
d1 \cdot 37
\end{array}
Initial program 98.4%
+-commutative98.4%
*-commutative98.4%
distribute-lft-out100.0%
distribute-lft-out100.0%
remove-double-neg100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
distribute-lft-neg-in100.0%
distribute-rgt-neg-in100.0%
remove-double-neg100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
associate-+l+100.0%
metadata-eval100.0%
Simplified100.0%
Taylor expanded in d2 around 0 67.9%
Taylor expanded in d3 around 0 25.1%
(FPCore (d1 d2 d3) :precision binary64 (* d1 (+ (+ 37.0 d3) d2)))
double code(double d1, double d2, double d3) {
return d1 * ((37.0 + d3) + d2);
}
real(8) function code(d1, d2, d3)
real(8), intent (in) :: d1
real(8), intent (in) :: d2
real(8), intent (in) :: d3
code = d1 * ((37.0d0 + d3) + d2)
end function
public static double code(double d1, double d2, double d3) {
return d1 * ((37.0 + d3) + d2);
}
def code(d1, d2, d3): return d1 * ((37.0 + d3) + d2)
function code(d1, d2, d3) return Float64(d1 * Float64(Float64(37.0 + d3) + d2)) end
function tmp = code(d1, d2, d3) tmp = d1 * ((37.0 + d3) + d2); end
code[d1_, d2_, d3_] := N[(d1 * N[(N[(37.0 + d3), $MachinePrecision] + d2), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
d1 \cdot \left(\left(37 + d3\right) + d2\right)
\end{array}
herbie shell --seed 2024163
(FPCore (d1 d2 d3)
:name "FastMath dist3"
:precision binary64
:alt
(! :herbie-platform default (* d1 (+ 37 d3 d2)))
(+ (+ (* d1 d2) (* (+ d3 5.0) d1)) (* d1 32.0)))