[Mlir-commits] [mlir] [MLIR][Presburger] Helper functions to compute the constant term of a generating function (PR #77819)

[Arjun P]

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@@ -83,6 +84,19 @@ ConeH getDual(ConeV cone);
 GeneratingFunction unimodularConeGeneratingFunction(ParamPoint vertex, int sign,
                                                     ConeH cone);
 
+/// Find a vector that is not orthogonal to any of the given vectors,
+/// i.e., has nonzero dot product with those of the given vectors
+/// that are not null.
+/// If any of the vectors is null, it is ignored.
+Point getNonOrthogonalVector(std::vector<Point> vectors);
+
+/// Find the coefficient of a given power of s in a rational function
+/// given by P(s)/Q(s), where the coefficients in P are QuasiPolynomials,
+/// and those in Q are Fractions.
+QuasiPolynomial getCoefficientInRationalFunction(unsigned power,
+                                                 std::vector<QuasiPolynomial>,
+                                                 std::vector<Fraction>);
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Superty wrote:

These are just const inputs right? So use ArrayRef for the vectors

https://github.com/llvm/llvm-project/pull/77819