[PATCH] D103882: [CostModel][AArch64] Make loads/stores of <vscale x 1 x eltty> expensive.

[Sander de Smalen via Phabricator via llvm-commits]

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At the moment, <vscale x 1 x eltty> are not yet fully handled by the
code-generator, so to avoid vectorizing loops with that VF, we set the
cost-model to some high (expensive) value for now. The reason for not
adding a new "TTI::getMinimumScalableVF" is because the type is supposed
to be a type that can be legalized. It partially is, although the support
for these types need some more work.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103882

Files:
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/AArch64/masked_ldst.ll
  llvm/test/Analysis/CostModel/AArch64/sve-gather.ll
  llvm/test/Analysis/CostModel/AArch64/sve-ldst.ll
  llvm/test/Analysis/CostModel/AArch64/sve-scatter.ll

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