https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62262
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Also the reason why it shows up in the first place is because the gimple level tracer produces: <bb 7>: # iftmp.0_13 = PHI <32(3)> value_5 = value_3 << iftmp.0_13; packed_6 = value_5 & 8388607; And never props the constant from the PHI node until RTL combine.