[PATCH] D100117: [AMDGPU] SIFoldOperands: eagerly delete dead copies

Matt Arsenault via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Apr 8 08:45:34 PDT 2021


arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIFoldOperands.cpp:1789
+      // delete it now.
+      if (MRI->use_empty(MI.getOperand(0).getReg()))
+        MI.eraseFromParent();
----------------
Slightly worried about the case where the only remaining copy user is a debug instruction


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100117/new/

https://reviews.llvm.org/D100117



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