[PATCH] D75980: [LV] Generate RT checks up-front and remove them if required.

[Florian Hahn via Phabricator via llvm-commits]

fhahn updated this revision to Diff 323975.
fhahn added a comment.

Rebased again & ping :)

I am planning on landing this within the next few days or early next week, unless there are any additional concerns. The 'build IR and throw away if not needed' is already used in multiple places and there have been no objections in llvm-dev. I am also more than happy to iterate on this once in tree to iron out any issues.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D75980/new/

https://reviews.llvm.org/D75980

Files:
  llvm/include/llvm/Transforms/Utils/ScalarEvolutionExpander.h
  llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/X86/illegal-parallel-loop-uniform-write.ll
  llvm/test/Transforms/LoopVectorize/pr47343-expander-lcssa-after-cfg-update.ll
  llvm/test/Transforms/LoopVectorize/runtime-drop-crash.ll
  llvm/test/Transforms/LoopVectorize/skeleton-lcssa-crash.ll

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