[PATCH] D146219: [NFC][LoopVectorize] Change trip counts for some tests to guarantee a scalar tail

[David Sherwood via Phabricator via llvm-commits]

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Quite a few vectoriser tests were using a trip count of 1024,
which meant:

1. For fixed-length VFs we would never actually tail-fold, e.g. see Transforms/LoopVectorize/RISCV/uniform-load-store.ll. This is because we can prove at compile-time there will never be a scalar tail.
2. As of D146199 <https://reviews.llvm.org/D146199> the same optimisation mentioned above will also apply to scalable VFs too.

I've changed all such trip counts to be 1025 instead.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146219

Files:
  llvm/test/Transforms/LoopVectorize/AArch64/masked-call.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-optsize.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
  llvm/test/Transforms/LoopVectorize/RISCV/scalable-tailfold.ll
  llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll

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