[Bug tree-optimization/87214] [9 Regression] r263772 miscompiled 520.omnetpp_r in SPEC CPU 2017

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87214

--- Comment #14 from Martin Liška <marxin at gcc dot gnu.org> ---
and moveto does:

void cPar::moveto(cPar& other)
{
    other.ownercomponent = ownercomponent;
    other.p = p;
    p = 
# 62 "simulator/cpar.cc" 3 4
       __null
# 62 "simulator/cpar.cc"
           ;
}