for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.



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SPU section handling is really huge mess. Replace remaining TAI calls for sections with explicit names in order not to block existing backends during section handling migration. SPU folks! Please consider using new section handling facility someday.

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Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable.


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the SelectionDAG and DAGCombiner code. The only functionality change is that now
the DAG combiner is performing the constant folding for these operations instead
of being a no-op.

This is *not* in response to a bug, so there isn't a testcase.


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lib/VMCore/CMakeLists.txt


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RA problem by expanding the live interval of an
earlyclobber def back one slot.  Remove
overlap-earlyclobber throughout.  Remove 
earlyclobber bits and their handling from
live internals.



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