tree b221d7b8540c95996227626d5f0ed217d34c0969
parent 1c6f3b274cdbe75c575eaba9e3d151a96131b91f
author Ted Kremenek <kremenek@apple.com> 1215123927 +0000
committer Ted Kremenek <kremenek@apple.com> 1215123927 +0000

Fix a bug in the dead stores checker reported in the following email:

  http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-July/002157.html

Essentially the observer mechanism in LiveVariables was observing block-level
expressions multiple times, leading to a case where the dead store checker could
see a value as dead when it was really live.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53115 91177308-0d34-0410-b5e6-96231b3b80d8