[PATCH] D81156: [Support] Add stream tie function and use it for errs()

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added inline comments.


================
Comment at: llvm/unittests/Support/raw_ostream_test.cpp:436
+  Buffer = "";
+  TiedTo.tie(&TiedStream);
+  TiedTo.SetBufferSize(2);
----------------
I added a pairing `TiedTo.tie(nullptr);`

`TiedStream` was destroyed before `TiedTo` and when flushing `TiedTo`, `TiedStream` has been destroyed => asan stack-use-after-scope failure.

Fixed in ceaee253f4f3079d2786697d099e43e9f61f897a


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D81156/new/

https://reviews.llvm.org/D81156