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5 Commits

Author SHA1 Message Date
Arjun P
eff067440e [MLIR] PresburgerSet subtraction: add documentation and assertion saying we don't support divisions yet 
Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D100324
 2021-04-14 05:56:35 +05:30
Arjun P
7f9e36b209 [MLIR] PresburgerSet emptiness check: remove assertions that there are no symbols 
Symbols are now supported in the integer emptiness check. Remove some outdated assertions checking that there are no symbols.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D100327
 2021-04-12 23:11:06 +05:30
Arjun P
fa9851ebfe [MLIR] NFC: simplify PresburgerSet::isEqual 
Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D94918
 2021-01-18 22:47:25 +05:30
Arjun P
9f32f1d6fb [MLIR] Support checking if two FlatAffineConstraints are equal 
This patch adds support for checking if two PresburgerSets are equal. In particular, one can check if two FlatAffineConstraints are equal by constructing PrebsurgerSets from them and comparing these.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D94915
 2021-01-18 21:46:01 +05:30
Arjun P
63dead2096 Introduce subtraction for FlatAffineConstraints 
Subtraction is a foundational arithmetic operation that is often used when computing, for example, data transfer sets or cache hits. Since the result of subtraction need not be a convex polytope, a new class `PresburgerSet` is introduced to represent unions of convex polytopes.

Reviewed By: ftynse, bondhugula

Differential Revision: https://reviews.llvm.org/D87068
 2020-10-07 17:31:06 +02:00