[PATCH] D64709: [AMDGPU] fixed scheduler crash in gfx908

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec added a comment.

In D64709#1585639 <https://reviews.llvm.org/D64709#1585639>, @arsenm wrote:

> Where does the null come from exactly?


It is in the list of all dag nodes, somehow dag builder put it there. I suspect that this is for scheduling barrier. The node is neither MI nor SDNode (obviously), just plain zero initialized.


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