[Bug middle-end/19986] [meta-bug] fold missing optimizations (compared to RTL)

[law at redhat dot com]

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Bug 19986 depends on bug 17141, which changed state.

Bug 17141 Summary: *&a->b is not folded
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19986