Duncan Sands b8ca4ff643 Fix PR2792: treat volatile loads as writing memory somewhere.
Treat stores as reading memory, just to play safe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13 12:45:50 +00:00
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