[PATCH] D37251: [X86] Add a pass to convert instruction chains between domains

[Anna Thomas via Phabricator via llvm-commits]

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Hi

It looks like this pass has extreme compile time growth. On icelake machines (where we have AVX-512 enabled), we see llc taking about 18 seconds on an IR and this pass contributes about 17 seconds.

There were also prior reproducers/issues added here: https://github.com/llvm/llvm-project/issues/41517


Repository:
  rL LLVM

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