[PATCH] D42394: CodeGen: Fix assertion in ScheduleDAGMILive::scheduleMI due to llvm.dbg.value

[Yaxun Liu via Phabricator via llvm-commits]

yaxunl created this revision.
yaxunl added reviewers: arsenm, rampitec.
Herald added subscribers: javed.absar, nhaehnle, wdng, MatzeB.

Fix a bug in ScheduleDAGMILive::scheduleMI which causes BotRPTracker not tracking CurrentBottom in some rare cases involving llvm.dbg.value.

This issues causes amdgcn target to assert when compiling some user codes with -g.


https://reviews.llvm.org/D42394

Files:
  lib/CodeGen/MachineScheduler.cpp
  test/CodeGen/AMDGPU/debug-value2.ll

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