lib/CodeGen/TargetInfo.cpp

1108   /// Merge an accumulating classification \arg Accum with a field
1111   /// \param Accum - The accumulating classification. This should
1115   static Class merge(Class Accum, Class Field);
1401 X86_64ABIInfo::Class X86_64ABIInfo::merge(Class Accum, Class Field) {
1423   // Accum should never be memory (we should have returned) or
1425   assert((Accum != Memory && Accum != ComplexX87) &&
1427   if (Accum == Field || Field == NoClass)
1428     return Accum;
1431   if (Accum == NoClass)
1433   if (Accum == Integer || Field == Integer)
1436       Accum == X87 || Accum == X87Up)