case ir.PAUTO:
			// processed at each use, to prevent Addr coming
			// before the decl.
		default:
			s.Fatalf("local variable with class %v unimplemented", n.Class)
		}
	}

	s.f.OwnAux = ssa.OwnAuxCall(fn.LSym, params)

	// Populate SSAable arguments.
	for _, n := range fn.Dcl {
		if n.Class == ir.PPARAM {
			if s.canSSA(n) {