[PATCH] D62739: AMDGPU: Always emit amdgpu-flat-work-group-size

[Matt Arsenault via Phabricator via cfe-commits]

arsenm marked an inline comment as done.
arsenm added inline comments.


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Comment at: lib/CodeGen/TargetInfo.cpp:7885
+    // By default, restrict the maximum size to 256.
+    F->addFnAttr("amdgpu-flat-work-group-size", "128,256");
   }
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b-sumner wrote:
> Theoretically, shouldn't the minimum be 1?
That's what I thought, but the backend is defaulting to 2 * wave size now


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  https://reviews.llvm.org/D62739/new/

https://reviews.llvm.org/D62739