[PATCH] D145265: [Pipeline] Remove GlobalCleanupPM

[Arthur Eubanks via Phabricator via llvm-commits]

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This is unnecessary given we're about to run the simplification pipeline anyway.

Requires shuffling around some InstCombine/SimplifyCFG within the function simplification pipelines.

Fairly substantial compile time wins:
https://llvm-compile-time-tracker.com/compare.php?from=bd6eb1423c38ef14014b8ddacb42326bd9f38af4&to=d54ed20dc2d607849b526ecb82b97c2691e82845&stat=instructions:u


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D145265

Files:
  llvm/lib/Passes/PassBuilderPipelines.cpp
  llvm/test/Transforms/Coroutines/coro-async.ll
  llvm/test/Transforms/Coroutines/coro-retcon-alloca-opaque-ptr.ll
  llvm/test/Transforms/Coroutines/coro-retcon-alloca.ll
  llvm/test/Transforms/Coroutines/coro-retcon-once-value.ll
  llvm/test/Transforms/Coroutines/coro-retcon-opaque-ptr.ll
  llvm/test/Transforms/Coroutines/coro-retcon-resume-values.ll
  llvm/test/Transforms/Coroutines/coro-retcon-value.ll
  llvm/test/Transforms/Coroutines/coro-retcon.ll
  llvm/test/Transforms/Coroutines/coro-swifterror.ll
  llvm/test/Transforms/PhaseOrdering/X86/pr52289.ll
  llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll

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