River Riddle 5d699d18b3 [mlir] Remove locking for dialect/operation registration. ...

Moving forward dialects should only be registered in a thread safe context. This matches the existing usage we have today, but it allows for removing quite a bit of expensive locking from the context.

This led to ~.5 a second compile time improvement when running one conversion pass on a very large .mlir file(hundreds of thousands of operations).

Differential Revision: https://reviews.llvm.org/D82595

2020-06-30 15:52:33 -07:00

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