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

[ryxi at stu dot xidian.edu.cn]

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

--- Comment #29 from Xi Ruoyao <ryxi at stu dot xidian.edu.cn> ---
https://gcc.gnu.org/ml/gcc-patches/2017-03/msg01563.html

Patch proposal