[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 #20 from Xi Ruoyao <ryxi at stu dot xidian.edu.cn> ---
On 2017-03-16 12:31 +0000, contact@edgar-fournival.fr wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80038
> 
> --- Comment #19 from Edgar Fournival <contact@edgar-fournival.fr> ---
> Thanks for your explanations. I will investigate on my side and check the
> generated assembly of our project. Please keep us posted with the results of
> your bisection.

Seems my explanation is still buggy.  We should say:

  There must be no frame change (cilk_..._enter_frame) between "call x"
  and "call y".

It's more reliable to compile and run Florent's original testcase.