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0c5795464b
Summary: As part of this * Emitted instructions now have named MachineInstr variables associated with them. This isn't particularly important yet but it's a small step towards multiple-insn emission. * constrainSelectedInstRegOperands() is no longer hardcoded. It's now added as the ConstrainOperandsToDefinitionAction() action. COPY_TO_REGCLASS uses an alternate constraint mechanism ConstrainOperandToRegClassAction() which supports arbitrary constraints such as that defined by COPY_TO_REGCLASS. Reviewers: ab, qcolombet, t.p.northover, rovka, kristof.beyls, aditya_nandakumar Reviewed By: ab Subscribers: javed.absar, igorb, llvm-commits Differential Revision: https://reviews.llvm.org/D33590 llvm-svn: 305791