https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109812
--- Comment #14 from Martin Jambor <jamborm at gcc dot gnu.org> --- (In reply to Jan Hubicka from comment #13) > The only difference between slp vectorization is: > > - # _68 = PHI <_5(3)> > - # _67 = PHI <_11(3)> > - # _66 = PHI <_16(3)> > - <retval>.r = _68; > - <retval>.g = _67; > - <retval>.b = _66; > + # _70 = PHI <_5(3)> > + # _69 = PHI <_11(3)> > + # _68 = PHI <_16(3)> > + <retval>.r = _70; > + <retval>.g = _69; > + <retval>.b = _68; > + <retval>.o = r$o_33(D); > > so SRA invents r$o_33(D) even if that variable is undefined. Is this the testcase from comment #10 ? I don't see r$o in my dumps.
