[Bug sanitizer/81021] stack-use-after-scope false positive error with exceptions

[a...@cloudius-systems.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81021

--- Comment #7 from Avi Kivity <a...@cloudius-systems.com> ---
Hitting something similar-looking on Fedora 26's gcc 7.1.1.