[Bug c/65275] Disappearing -Wsequence-point warning

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65275

--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot 
com> ---
The warning here appears to be bogus; the code looks well-defined to me.