[PATCH] D26872: Outliner: Add MIR-level outlining pass

[Adrian Prantl via Phabricator via llvm-commits]

aprantl added inline comments.


================
Comment at: lib/CodeGen/MachineOutliner.cpp:199
+  while (EndIt != StartIt) {
+    MI = MF.CloneMachineInstr(&*EndIt);
+    MI->dropMemRefs();
----------------
aprantl wrote:
> I looked at the implementation of MachineFunction::CloneMachineInstr() but I still can't tell:
> What happens when the original instruction has a debug location on it - will it be stripped?
> What happens when the original instruction is a DBG_VALUE - will it be copied?
Did you get a chance to look into this?


Repository:
  rL LLVM

https://reviews.llvm.org/D26872