[PATCH] D69172: AMDGPU: Fix SMEM WAR hazard for gfx10 readlane

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec added a comment.

In D69172#1946305 <https://reviews.llvm.org/D69172#1946305>, @foad wrote:

> Hi @kerbowa, why is this needed for gfx10? The public RDNA documentation says:
>
>   4.5. Manually Inserted Wait States (NOPs)
>   Inserting S_NOP is never required to achieve correct operation.
>
>
> Is this not the full story?


It does not have data hazards, but then it has some bugs. This one is SMEMtoVectorWriteHazard.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D69172/new/

https://reviews.llvm.org/D69172