[PATCH] D72709: [codegen,amdgpu] Enhance MIR DIE and re-arrange it for AMDGPU.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

I'm not sure this logic works in the presence of an undef subregister def



================
Comment at: llvm/lib/CodeGen/DeadMachineInstructionElim.cpp:87
+#ifndef NDEBUG
+          // Sanity check on uses of this dead regsiter. All of them should be
+          // 'undef'.
----------------
Typo regsiter


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https://reviews.llvm.org/D72709