[Bug middle-end/19987] [meta-bug] fold missing optimizations in general

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19987
Bug 19987 depends on bug 95853, which changed state.

Bug 95853 Summary: Failure to optimize add overflow pattern to 
__builtin_add_overflow
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95853

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED