[Bug c++/79821] [7 regression] SEGV in cc1plus compiling 64-bit stdc++.h.gch/O2g.gch

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79821

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Weird, that commit only changes the names of some variables.

A similar patch has been committed to the gcc-5 and gcc-6 branches, so we
should be sure a similar ICE doesn't happen on the branches.