[PATCH] D100871: [COST][AARCH64] Improve cost of reverse shuffles for AArch64.

[Dave Green via Phabricator via llvm-commits]

dmgreen accepted this revision.
dmgreen added a comment.
This revision is now accepted and ready to land.

Thanks. LGTM



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Comment at: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp:1483
       { TTI::SK_PermuteSingleSrc, MVT::v2f64, 1 }, // mov.
+      // The cost of reverse is just copied from PermuteSingleSrc.
+      { TTI::SK_Reverse, MVT::v2i32, 1 }, // mov.
----------------
This can say something like "Reverse can are lowered with `rev`.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D100871/new/

https://reviews.llvm.org/D100871