[PATCH] D78824: [CostModel][X86][ARM] Teach getCastInstrCost to include the splitting factor when handling operations that type legalize to the same number of subvectors or scalar components

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: spatel, dmgreen, RKSimon, samparker.
Herald added subscribers: danielkiss, kristof.beyls.

Previously, we just always returned 1. But that ignores that we have to do the operation for each subvector or scalar component.


https://reviews.llvm.org/D78824

Files:
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/test/Analysis/CostModel/ARM/cast.ll
  llvm/test/Analysis/CostModel/X86/fptosi.ll

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