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

[michael.hudson at canonical dot com]

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

--- Comment #6 from Michael Hudson-Doyle <michael.hudson at canonical dot com> ---
Are there any tips as to how to diagnose this further? I tried putting a
math_opt_barrier on this line:
https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/ieee754/ldbl-128/e_j1l.c;h=54c457681aecef079cb64d406ca89e05d2ce4fc5;hb=HEAD#l872
and it didn't help, although the failing test is hitting the case the
SET_RESTORE_ROUNDL is in.