[Bug ipa/115767] [12/13/14/15 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

[mcccs at gmx dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767

--- Comment #29 from mcccs at gmx dot com ---
fails with even -O1 -fstrict-aliasing -fcode-hoisting