[PATCH] D157628: [AArch64][SVE2] Change the cost of extends with S/URHADD to 0

[Dinar Temirbulatov via Phabricator via llvm-commits]

dtemirbulatov added inline comments.


================
Comment at: llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp:2105
+  auto *Trunc = cast<Instruction>(*LShr->user_begin());
+  if (Trunc->getOpcode() != Instruction::Trunc ||
+      Src->getScalarSizeInBits() !=
----------------
dtemirbulatov wrote:
> Check for Trunc->hasOneUser() here as well?
oh, Trunc here is a final instruction in the sequence, so no need to check for hasOneUser().


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157628/new/

https://reviews.llvm.org/D157628