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f18134a1ae
Right now if the coalesced copy def is dead and its src is a kill, and that there are now other uses within the live range, the coalescer would mark the def of the source register as dead. But it should also check if there are other kills which means the value has other uses not in the live range. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64075 91177308-0d34-0410-b5e6-96231b3b80d8
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