LONGMONT — Xilinx Inc. (Nasdaq: XLNX), a California-headquartered integrated circuits and computer processor maker with a large operation in Longmont, is being sued by a stockholder who claims insufficient financial data has been provided in advance of a planned acquisition by Advanced Micro Devices Inc. (Nasdaq: AMD). The suit, filed by plaintiff Stephen Hale last week in U.S. District Court in Denver, names Xilinx’s board of directors as defendants. It accuses the firm and its leaders of providing stakeholders with a financial disclosure package that “omits and/or misrepresents material information,” according to the complaint. Specifically, the suit claims Xilinx, which has about 200 workers in a 135,000-square-foot facility on Logic Drive, has failed to disclose data including all line items underlying revenue, unlevered free cash flow and net income projections.