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Author SHA1 Message Date
Kazu Hirata 1a36588ec6 [mlir] Use std::nullopt instead of None (NFC) 
This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated.  The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

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
 2022-12-03 18:50:27 -08:00
Jakub Kuderski abc362a107 [mlir][arith] Change dialect name from Arithmetic to Arith 
Suggested by @lattner in https://discourse.llvm.org/t/rfc-define-precise-arith-semantics/65507/22.

Tested with:
`ninja check-mlir check-mlir-integration check-mlir-mlir-spirv-cpu-runner check-mlir-mlir-vulkan-runner check-mlir-examples`

and `bazel build --config=generic_clang @llvm-project//mlir:all`.

Reviewed By: lattner, Mogball, rriddle, jpienaar, mehdi_amini

Differential Revision: https://reviews.llvm.org/D134762
 2022-09-29 11:23:28 -04:00
Johannes Reifferscheid 23dec4a352 Move BufferViewFlowAnalysis to the Bufferization dialect. 
It's only used from there, and this lets us remove the dependency from Analysis
to the Arith dialect.

Reviewed By: springerm

Differential Revision: https://reviews.llvm.org/D132928
 2022-08-30 14:25:49 +02:00