rjmccall accepted this revision.
rjmccall added inline comments.
This revision is now accepted and ready to land.


================
Comment at: clang/lib/Sema/SemaExpr.cpp:15692
+  MaybeODRUseExprSet LocalMaybeODRUseExprs;
+  std::swap(LocalMaybeODRUseExprs, MaybeODRUseExprs);
+
----------------
erik.pilkington wrote:
> rjmccall wrote:
> > It looks like `SmallPtrSet`'s move constructor does actually guarantee to 
> > leave the source empty; you could probably just assert that.  But I don't 
> > think there's an algorithmic cost, so this is fine, too.
> > 
> > Please leave an assertion at the bottom of this function that the set is 
> > empty.
> If you have to actually check the constructor to verify the client code is 
> doing the right thing then it makes more sense to just be explicit, IMO. New 
> patch adds the assert though.
If it were perf-significant I might disagree, but it shouldn't be, so this is 
fine.  LGTM.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59670/new/

https://reviews.llvm.org/D59670



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