Amy Huang 64c1f6602a Revert "Add an instruction marker field to the ExtraInfo in MachineInstrs."
Reverting commit b85b4e5a6f8579c137fecb59a4d75d7bfb111f79 due to some
buildbot failures/ out of memory errors.
2019-10-25 12:41:34 -07:00
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