yaxunl marked 2 inline comments as done.
yaxunl added inline comments.

================
Comment at: clang/lib/Sema/Sema.cpp:1558
+    // visited before.
+    if (Done.count(FD))
+      return;
----------------
rjmccall wrote:
> yaxunl wrote:
> > rjmccall wrote:
> > > `insert` returns whether it changed the set, so you can combine this 
> > > check with the insertion unless the exact ordering is important.
> > The order is important here. We cannot inert until the body of the function 
> > has been traversed.
> Why?  It only matters if we encounter `FD` again while recursing into its 
> body, during which time `InUsePath.count(FD)` will be true and so we'll have 
> bailed out above.
You are right. I forgot InUsePath. Will fix this. Thanks.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77028/new/

https://reviews.llvm.org/D77028



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