[Bug target/77728] [5/6/7 Regression] Miscompilation multiple vector iteration on ARM

[yyc1992 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728

--- Comment #2 from Yichao Yu <yyc1992 at gmail dot com> ---
I should add that turning on lto works around the issue both in the simple code
attached and for the original issue I was having in julia (i.e. compiling llvm
with LTO makes the issue go away).