[Bug target/106574] gcc 12 with O3 leads to failures in glibc's y1f128 tests

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106574

--- Comment #5 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
It's possible code is being moved across SET_RESTORE_ROUNDL, in which case 
maybe math_opt_barrier needs to be used in glibc code to prevent that 
movement.