[Bug c++/71372] [6/7 Regression] GCC Optimization "tree-dse" does not respect access to volatile* upon explicit cast.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71372

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-06-01
   Target Milestone|---                         |6.2
            Summary|GCC Optimization "tree-dse" |[6/7 Regression] GCC
                   |does not respect access to  |Optimization "tree-dse"
                   |volatile* upon explicit     |does not respect access to
                   |cast.                       |volatile* upon explicit
                   |                            |cast.
     Ever confirmed|0                           |1

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Oh, confirmed on x86_64.  Only happens when compiling with the C++ frontend!