Other software companies declining included Salesforce.com CRM.N, Paycom Software PAYC.N, Intuit INTU.O and Microsoft MSFT.O, were also down. By Stephen Culp NEW YORK, July 12 (Reuters) - Wall Street struggled for direction on Tuesday as growing signs of looming recession kept investors cautious ahead of Wednesday's inflation data. Among the 11 major sectors in the S&P 500, materials were enjoying the largest percentage advance, while energy shares .SPNY, weighed down by plunging crude prices CLc1, were the biggest loser.