The Swiss government said on Wednesday it wants quick legislation to limit risks from one or more of Switzerland's largest banks from failing, part of an effort to curry favour with lawmakers ahead of vote over UBS US data deal.

The Swiss government is throwing its weight behind the Swiss National Bank and regulator Finma's efforts on the too-big-to-fail issue as part of a raft of measures meant to safeguard a US - Swiss settlement over confidential client data from UBS. Too-big-to-fail--targeted at Swiss giants UBS and Credit Suisse - and curbs on bankers' bonuses are likely to ensure a favourable vote from left-wing politicians when Switzerland's parliament votes on the settlement next month.