[Bug other/77421] Bugs found in GCC with the help of PVS-Studio

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77421

--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
I'd also encourage people to look at these issues for ideas for new 
warnings in GCC, if they can define a warning case that's plausible to 
check for in GCC with a low false-positive rate (so might go in -Wall or 
-Wextra).