Make X86's copyRegToReg able to handle copies to and from subclasses.
This makes the extra copyRegToReg calls in ScheduleDAGSDNodesEmit.cpp
unnecessary. Derived from a patch by Jakob Stoklund Olesen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69635 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed