[PATCH] D86888: RegAllocFast: Make self loop live-out heuristic more aggressive

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet accepted this revision.
qcolombet added a comment.
This revision is now accepted and ready to land.

LGTM with one caveat, do we need the new `getOneDefInstr`?



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Comment at: llvm/lib/CodeGen/RegAllocFast.cpp:275
+  return ++DI == MRI.def_instr_end() ? FirstDef : nullptr;
+}
+
----------------
How does this differ from `MachineRegisterInfo::getUniqueVRegDef`?


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https://reviews.llvm.org/D86888