[PATCH] D18870: AMDGPU/SI: Use the hazard recognizer to break SMEM soft clauses

[Nicolai Hähnle via llvm-commits]

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This revision is now accepted and ready to land.

The re-building of the ClauseDefs and ClauseUses sets at each instruction seems wasteful especially with longer clauses, but I'll leave it up to you.

Apart from that, LGTM.


http://reviews.llvm.org/D18870