[PATCH] D73275: [ARM][LowOverheadLoops] Don't ignore VCTP

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
samparker added reviewers: dmgreen, SjoerdMeijer.
Herald added subscribers: hiraditya, kristof.beyls.
Herald added a project: LLVM.

When expanding the LoopStart, we try to remove the iteration count calculation. However, if part of the calculation was also used to calculate the number of elements we could end up deleting instructions that were required to feed DLSTP/WLSTP.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73275

Files:
  llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
  llvm/test/CodeGen/Thumb2/LowOverheadLoops/dont-ignore-vctp.mir

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