[Bug rtl-optimization/116067] [15 Regression] wrong code at -O2 related to -fext-dce

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116067

--- Comment #4 from Jeffrey A. Law <law at gcc dot gnu.org> ---
And Sam, yes, absolutely OK to just assign anything that looks ext-dce related
to me.  Hoping with today's change things should start settling down and I can
focus on addressing some longer term maintainability stuff I don't like in that
code.