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4 Commits

Author SHA1 Message Date
Kazu Hirata
1b2247d932 [mlir] Replace None with std::nullopt in comments (NFC) 
This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
 2023-04-26 23:29:02 -07:00
Matthias Springer
7e5d300d0a [mlir][Analysis] Fix assertion in FlatLinearConstraints 
Differential Revision: https://reviews.llvm.org/D146869
 2023-03-25 12:54:17 +01:00
Matthias Springer
47bff1cc46 [mlir][Analysis][NFC] Make BoundType a top-level enum 
`BoundType` is no longer a nested member of `IntegerRelation` but a top-level enum in the `presburger` namespace.

This allows `BoundType` to be predeclared in header files. Nested members cannot be predeclared.

Differential Revision: https://reviews.llvm.org/D146210
 2023-03-23 09:46:21 +01:00
Matthias Springer
5b0055a4ae [mlir][Analysis][NFC] Split FlatAffineValueConstraints into multiple classes 
The new class hierarchy is as follows:

* `IntegerRelation` (no change)
* `IntegerPolyhedron` (no change)
* `FlatLinearConstraints`: provides an AffineExpr-based API
* `FlatLinearValueConstraints`: stores an additional mapping of non-local vars to SSA values
* `FlatAffineValueConstraints`: provides additional helper functions for Affine dialect ops
* `FlatAffineRelation` (no change)

`FlatConstraints` and `FlatValueConstraints` are moved from `MLIRAffineAnalysis` to `MLIRAnalysis` and can be used without depending on the Affine dialect.

This change is in preparation of D145681, which adds an MLIR interface that depends on `FlatConstraints` (and cannot depend on the Affine dialect or any other dialect).

Differential Revision: https://reviews.llvm.org/D146201
 2023-03-23 09:38:12 +01:00