llvm-project

6568062f - [MLIR][OpenMP] Improve assemblyFormat handling for clause-based ops (#108023)

[MLIR][OpenMP] Improve assemblyFormat handling for clause-based ops (#108023) This patch modifies the representation of `OpenMP_Clause` to allow definitions to incorporate both required and optional arguments while still allowing operations including them and overriding the `assemblyFormat` to take advantage of automatically-populated format strings. The proposed approach is to split the `assemblyFormat` clause property into `reqAssemblyFormat` and `optAssemblyFormat`, and remove the `isRequired` template and associated `required` property. The `OpenMP_Op` class, in turn, populates the new `clausesReqAssemblyFormat` and `clausesOptAssemblyFormat` properties in addition to `clausesAssemblyFormat`. These properties can be used by clause-based OpenMP operation definitions to reconstruct parts of the clause-inherited format string in a more flexible way when overriding it. Clause definitions are updated to follow this new approach and some operation definitions overriding the `assemblyFormat` are simplified by taking advantage of the improved flexibility, reducing code duplication. The `verify-openmp-ops` tablegen pass is updated for the new `OpenMP_Clause` representation. Some MLIR and Flang unit tests had to be updated due to changes to the default printing order of clauses on updated operations.