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Commit 35b362fa authored by Jakob Stoklund Olesen's avatar Jakob Stoklund Olesen
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Add MachineInstr::getRegClassConstraint(). 

Most instructions have some requirements for their register operands.
Usually, this is expressed as register class constraints in the
MCInstrDesc, but for inline assembly the constraints are encoded in the
flag words.

llvm-svn: 141835
parent 1e73716e
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