Richard Barton b59aee170f [ARM] Fix offset calculation in ARMBaseRegisterInfo::needsFrameBaseReg
The input offset to needsFrameBaseReg is a negative value below the top of the
stack frame, but when converting to a positive offset from the bottom of the
stack frame this value was negated, causing the final offset to be too large
by twice the input offset's magnitude. Fix that by not negating the offset.

Patch by John Brawn

Differential Revision: http://reviews.llvm.org/D8316

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232513 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 18:20:47 +00:00
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