func (s *state) expr(n ir.Node) *ssa.Value {
	return s.exprCheckPtr(n, true)
}

func (s *state) exprCheckPtr(n ir.Node, checkPtrOK bool) *ssa.Value {
	if ir.HasUniquePos(n) {
		// ONAMEs and named OLITERALs have the line number
		// of the decl, not the use. See issue 14742.
		s.pushLine(n.Pos())
		defer s.popLine()
	}

	s.stmtList(n.Init())
	switch n.Op() {