[Bug tree-optimization/104603] [10/11/12 Regression] wrong detection of -Warray-bounds for interesting tail resusive case

[herumi at nifty dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104603

--- Comment #3 from herumi <herumi at nifty dot com> ---
>Also if this is from some larger code,
>it might be useful to have the non-reduced testcase
>since the reduced testcase might being showing something different.

The reason why I made this code is from the issue:
https://github.com/herumi/xbyak/issues/137