[PATCH] D90687: [LV] Ignore VF hint when unsafe

[Cullen Rhodes via Phabricator via llvm-commits]

c-rhodes updated this revision to Diff 302809.
c-rhodes added a comment.

Rather than bail out of vectorization if `UserVF > MaxVF`, clamp `UserVF` to the maximum feasible VF.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D90687/new/

https://reviews.llvm.org/D90687

Files:
  llvm/include/llvm/Analysis/LoopAccessAnalysis.h
  llvm/lib/Analysis/LoopAccessAnalysis.cpp
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/X86/libm-vector-calls-VF2-VF8.ll
  llvm/test/Transforms/LoopVectorize/X86/libm-vector-calls-finite.ll
  llvm/test/Transforms/LoopVectorize/X86/libm-vector-calls.ll
  llvm/test/Transforms/LoopVectorize/X86/svml-calls-finite.ll
  llvm/test/Transforms/LoopVectorize/metadata-width.ll
  llvm/test/Transforms/LoopVectorize/preserve-dbg-loc-and-loop-metadata.ll
  llvm/test/Transforms/LoopVectorize/runtime-check.ll
  llvm/test/Transforms/LoopVectorize/unsafe-vf-remark.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D90687.302809.patch
Type: text/x-patch
Size: 33997 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20201104/c4dd8890/attachment.bin>