[PATCH] D133275: [SimpleLoopUnswitch] Skip non-trivial unswitching of cold functions

[Ruobing Han via Phabricator via llvm-commits]

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In the current main branch, all cold loops will not be applied non-trivial unswitch. As reported in D129599 <https://reviews.llvm.org/D129599>, skipping these cold loops will incur regression in SPEC benchmark.
Thus, instead of skipping cold loops, now only skipping loops in cold functions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133275

Files:
  llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
  llvm/test/Transforms/SimpleLoopUnswitch/PGO-nontrivial-unswitch.ll
  llvm/test/Transforms/SimpleLoopUnswitch/PGO-nontrivial-unswitch2.ll

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