[Bug c++/80038] Random segfault using local vectors in Cilk function [Regression 6/7]

[ryxi at stu dot xidian.edu.cn]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80038

--- Comment #26 from Xi Ruoyao <ryxi at stu dot xidian.edu.cn> ---
Reverting r227423 makes both Florent's and NumericMonoid code work.  But it
reintroduced pr60586.  Trying to solve it.