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

[xry111 at gcc dot gnu.org via Gcc-bugs]

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

--- Comment #22 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
Maybe it's worthy to try the new LLVM TBAA sanitizer for this?