Eric Christopher 94bb7b561c Even if we don't have 7 bytes of stack space we may need to save and
restore the stack pointer from the frame pointer on thumbv6.

Fixes rdar://8819685


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123196 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-11 00:16:04 +00:00
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