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clang-p2996/llvm/lib/CodeGen/VirtRegMap.cpp
Jakob Stoklund Olesen e6e6750670 Don't completely eliminate identity copies that also modify super register liveness. 
Turn them into noop KILL instructions instead. This lets the scavenger know when
super-registers are killed and defined.

llvm-svn: 128645
2011-03-31 17:55:25 +00:00

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