[Bug middle-end/116065] [13/14/15 Regression] Function attribute optimize() might make ISA target attribute broken

[haochen.jiang at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116065

--- Comment #3 from Haochen Jiang <haochen.jiang at intel dot com> ---
Maybe I could first start with a bisect since GCC12.1 is known to ok and
GCC13.1 is known to fail.