[PATCH] D108138: [WIP] Remove switch statements before vectorization

[Kerry McLaughlin via Phabricator via cfe-commits]

kmclaughlin updated this revision to Diff 372706.
kmclaughlin retitled this revision from "[SimplifyCFG] Remove switch statements before vectorization" to "[WIP] Remove switch statements before vectorization".
kmclaughlin edited the summary of this revision.
kmclaughlin added a comment.
Herald added subscribers: kerbowa, nhaehnle, jvesely.

- Removed changes to SimplifyCFG and instead run LowerSwitch before vectorisation.
- Added `SimpleSwitchConvert` to LowerSwitch which is used if the pass is run before vectorisation - this only considers simple switches (where each destination block is unique) which are also part of a loop.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D108138/new/

https://reviews.llvm.org/D108138

Files:
  clang/test/Frontend/optimization-remark-analysis.c
  llvm/include/llvm/Transforms/Utils/LowerSwitch.h
  llvm/lib/Passes/PassBuilder.cpp
  llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
  llvm/lib/Transforms/Utils/FixIrreducible.cpp
  llvm/lib/Transforms/Utils/LowerSwitch.cpp
  llvm/lib/Transforms/Utils/UnifyLoopExits.cpp
  llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
  llvm/test/Other/new-pm-defaults.ll
  llvm/test/Other/new-pm-lto-defaults.ll
  llvm/test/Other/new-pm-thinlto-defaults.ll
  llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll
  llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-remove-switches.ll
  llvm/test/Transforms/LoopVectorize/remove-switches.ll
  llvm/test/Transforms/LowerSwitch/simple-switches.ll
  llvm/test/Transforms/StructurizeCFG/workarounds/needs-fr-ule.ll

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