[PATCH] D132939: [Peephole] rewrite INSERT_SUBREG to SUBREG_TO_REG if upper bits zero

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added inline comments.


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Comment at: llvm/lib/Target/AArch64/AArch64MIPeepholeOpt.cpp:295
+          .add(MI.getOperand(3));
+  LLVM_DEBUG(dbgs() << MI << "  replace by:\n: " << *SubregMI << "\n");
+  MI.eraseFromParent();
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`SubregMI` caused a -Wunused-variable in `-DLLVM_ENABLE_ASSERTIONS=off` builds. I fixed it 


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D132939/new/

https://reviews.llvm.org/D132939