Matrix has been templated to Matrix (for MPInt and Fraction) with
explicit instantiation for both these types.
IntMatrix, inheriting from Matrix<MPInt>, has been created to allow for
integer-only methods.
makeMatrix has been duplicated to makeIntMatrix and makeFracMatrix.
This was already landed previously but was reverted in
98c994c8e22d7f38cc04f56ee5cdeb337734414d due to build failure. This
fixes the failure.
The method implementations remain in the .cpp file; explicit instantiations have been added for these two types.
makeMatrix has been duplicated to makeIntMatrix and makeFracMatrix.
This patch adds hermite normal form computation to Matrix. Part of this algorithm
lived in LinearTransform, being used for compuing column echelon form. This
patch moves the implementation to Matrix::hermiteNormalForm and generalises it
to compute the hermite normal form.
Reviewed By: arjunp
Differential Revision: https://reviews.llvm.org/D133510
Only the main Presburger library under the Presburger directory has been switched to use arbitrary precision. Users have been changed to just cast returned values back to int64_t or to use newly added convenience functions that perform the same cast internally.
The performance impact of this has been tested by checking test runtimes after copy-pasting 100 copies of each function. Affine/simplify-structures.mlir goes from 0.76s to 0.80s after this patch. Its performance sees no regression compared to its original performance at commit 18a06d4f3a7474d062d1fe7d405813ed2e40b4fc before a series of patches that I landed to offset the performance overhead of switching to arbitrary precision.
Affine/canonicalize.mlir and SCF/canonicalize.mlir show no noticable difference, staying at 2.02s and about 2.35s respectively.
Also, for Affine and SCF tests as a whole (no copy-pasting), the runtime remains about 0.09s on average before and after.
Reviewed By: bondhugula
Differential Revision: https://reviews.llvm.org/D129510
This patch modifies IntegerPolyhedron, IntegerRelation, PresburgerRelation,
PresburgerSet, PWMAFunction, constructors to take PresburgerSpace instead of
dimensions. This allows information present in PresburgerSpace to be carried
better and allows for a general interface.
Reviewed By: arjunp
Differential Revision: https://reviews.llvm.org/D122842
This patch fixes a bug in LinearTransform::applyTo where it did not carry the
IdKind information, and instead treated every id as IdKind::Domain.
Reviewed By: arjunp
Differential Revision: https://reviews.llvm.org/D122823
This patch moves all functionality from IntegerPolyhedron to IntegerRelation.
IntegerPolyhedron is now implemented as a relation with no domain. All existing
functionality is extended to work on relations.
This patch does not affect external users like FlatAffineConstraints as they
can still continue to use IntegerPolyhedron abstraction.
This patch is part of a series of patches to support relations in Presburger
library.
Reviewed By: arjunp
Differential Revision: https://reviews.llvm.org/D120652
This patch moves the Presburger library to a new `presburger` namespace.
This allows to shorten some names, helps to avoid polluting the mlir namespace,
and also provides some structure.
Reviewed By: arjunp
Differential Revision: https://reviews.llvm.org/D120505
This patch moves LinearTransform to Presburger/ and makes it use
IntegerPolyhedron instead of FlatAffineConstraints. Also modifies its usage in
`FlatAffineConstraints::findIntegerSample` to support the changes.
This patch is part of a series of patches for moving presburger math functionality into Presburger directory.
Reviewed By: arjunp
Differential Revision: https://reviews.llvm.org/D116311
