[PATCH] D26872: Outliner: Add MIR-level outlining pass
Adrian Prantl via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jan 12 08:53:06 PST 2017
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
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