[LLVMbugs] [Bug 9851] llc -combiner-alias-analysis reorders volatiles

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9851

Duncan Sands <baldrick at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |baldrick at free.fr
         Resolution|                            |INVALID

--- Comment #2 from Duncan Sands <baldrick at free.fr> 2011-05-06 01:16:53 CDT ---
As far as I know reordering volatiles is perfectly valid.  You need a memory
barrier if you want to enforce ordering.

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