[PATCH] [ARM] Fix offset calculation in ARMBaseRegisterInfo::needsFrameBaseReg

[John Brawn]

In http://reviews.llvm.org/D8316#141952, @jmolloy wrote:

> Hi John,
>
> This LGTM.
>
> James


Thanks. Could you commit this for me please?


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http://reviews.llvm.org/D8316

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