Igor Veresov d59d7ffc4a 6985015: C1 needs to support compressed oops
This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered.

Reviewed-by: twisti, kvn, never, phh
2010-11-30 23:23:40 -08:00
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