Alex Zinenko 63c9d2b14e [mlir] Add transform.foreach_match ...

Add a new transform op combinator that implements an "if-then-else"
style of mechanism for applying transformations. Its main purpose is to
serve as a higher-level driver when applying multiple transform scripts
to potentially overlapping pieces of the payload IR. This is similar to
how the various rewrite drivers operate in C++, but at a higher level
and with more declarative expressions. This is not intended to replace
existing pattern-based rewrites, but to to drive more complex
transformations that are exposed in the transform dialect and are too
complex to be expressed as simple declarative rewrites.

Reviewed By: springerm

Differential Revision: https://reviews.llvm.org/D148013

2023-04-12 11:01:38 +00:00

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