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Commit b954b91a authored by Jakob Stoklund Olesen's avatar Jakob Stoklund Olesen
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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.

llvm-svn: 157059
parent b63d6cdf
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