[Bug target/18404] unnecessary sll when -mint64 (MIPS)

[fshvaige at cisco dot com]

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           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|unnecessary sll when -mint64|unnecessary sll when -mint64
                   |                            |(MIPS)


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18404