[LowerFormalToHW] Avoid applyPatternsGreedily, NFCI
#8088
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LowerFormalToHW used `applyPatternsGreedily` on ModuleOp but that is overkill for what LowerFormalToHW does. `applyPatternsGreedily` is called on ModuleOp so canonicalizations are executed in a single thread. This commit simply replaces RewriterPattern with a helper function and call it manually.
Seems like I messed up when replacing the code.
leonardt
approved these changes
Jan 15, 2025
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LowerFormalToHW used
applyPatternsGreedilyon ModuleOp but that is overkill for what LowerFormalToHW does. SinceapplyPatternsGreedilyis called on ModuleOp, canonicalizations are executed in a single thread and LowerFormalToHW consumed non-trivial amount of time in large designs.This commit simply replaces RewriterPattern with a helper function and call it manually.
Should fix #8035.