[Bug rtl-optimization/64916] ira.c update_equiv_regs patch causes gcc/testsuite/gcc.target/arm/pr43920-2.c regression

[Alex.Velenko at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64916

--- Comment #9 from Alex Velenko <Alex.Velenko at arm dot com> ---
Jeff, thank you for noticing this. I don't mind this time, I just hope this
would not happen next time.