[llvm-dev] Is subclass of ScheduleDAGMILive a pre-RA scheduler? (original) (raw)

陳韋任 via llvm-dev llvm-dev at lists.llvm.org
Mon Apr 24 16:10:31 PDT 2017


Ping? :)

2017-04-22 20:12 GMT+08:00 陳韋任 <chenwj.cs97g at g2.nctu.edu.tw>:

Hi All,

The description of ScheduleDAGMILive [1] says: ScheduleDAGMILive is an implementation of ScheduleDAGInstrs that schedules machine instructions while updating LiveIntervals and tracking regpressure. Does the live interval and register pressure part of ScheduleDAGMILive mean the subclass of ScheduleDAGMILive is a pre-RA scheduler? I assume the post-RA scheduler no need to take care of live interval and register pressure, since RA is done already. Thanks. [1] http://llvm.org/doxygen/classllvm11ScheduleDAGMILive.html Regards, chenwj -- Wei-Ren Chen (陳韋任) Homepage: https://people.cs.nctu.edu.tw/~chenwj

-- Wei-Ren Chen (陳韋任) Homepage: https://people.cs.nctu.edu.tw/~chenwj



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