[Bug ipa/122096] [16/17 Regression] r16-4000 causing 523.xalancbmk_r codesize increase by 13-15% with "-Ofast -march=native -flto" on multiple platforms

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122096

--- Comment #12 from Haochen Jiang <haochen.jiang at intel dot com> ---
I just found that this commit also caused a 8% codesize increasement for
736.ocio_r for "-O2 -mtune=generic -march=x86-64-v3" with no perf improvement
on x86.

I am going to see if the codesize increase under -O2 is worthy or not.