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Author SHA1 Message Date
Arnold Schwaighofer 77af0f6e82 ARM cost model: Account for zero cost scalar SROA instructions 
By vectorizing a series of srl, or, ... instructions we have obfuscated the
intention so much that the backend does not know how to fold this code away.

radar://15336950

llvm-svn: 193573
 2013-10-29 01:33:53 +00:00