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Jakob Stoklund Olesen
846b183a9e
Simplify RegisterCoalescer::copyCoalesceInMBB().
It is no longer necessary to separate VirtCopies, PhysCopies, and ImpDefCopies. Implicitly defined copies are extremely rare after we added the ProcessImplicitDefs pass, and physical register copies are not joined any longer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157059 91177308-0d34-0410-b5e6-96231b3b80d8
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