[PATCH] D151977: [X86][NFC]Use ref instead copy in for loop for SDValue::op_values()

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

We pass SDValue by value all over the SelectionD
AG code. And it looks pretty easy for a compiler to see the unsigned field is unused. Does this change really make a difference?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D151977/new/

https://reviews.llvm.org/D151977