[PATCH] D95603: [CostModel]Add cost model for experimental.vector.reverse

Caroline via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 28 02:02:43 PST 2021


CarolineConcatto created this revision.
Herald added subscribers: hiraditya, kristof.beyls.
CarolineConcatto requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

This patch uses the function getShuffleCost with SK_Reverse to compute the cost
for experimental.vector.reverse.
For scalable vector type, it adds a table will the legal types on
AArch64TTIImpl::getShuffleCost to not assert in BasicTTIImpl::getShuffleCost,
and for fixed vector, it relies on the existing cost model in BasicTTIImpl.

Depends on D94883 <https://reviews.llvm.org/D94883>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95603

Files:
  llvm/include/llvm/CodeGen/BasicTTIImpl.h
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/AArch64/getIntrinsicInstrCost-vector-reverse.ll
  llvm/test/Analysis/CostModel/AArch64/sve-getIntrinsicInstrCost-vector-reverse.ll

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