================
@@ -2705,6 +2705,30 @@ An error will be given if:
}];
}
+def AMDGPUNumWorkGroupsDocs : Documentation {
+ let Category = DocCatAMDGPUAttributes;
+ let Content = [{
+The number of work groups specifies the number of work groups when the kernel
+is dispatched.
+
+Clang supports the
+``__attribute__((amdgpu_num_work_groups(<x>, <y>, <z>)))`` attribute for the
+AMDGPU target. This attribute may be attached to a kernel function definition
+and is an optimization hint.
+
+``<x>`` parameter specifies the maximum number of work groups in the x
dimentsion.
----------------
erichkeane wrote:
```suggestion
``<x>`` parameter specifies the maximum number of work groups in the x
dimension.
```
Also, we should be more clear/elaborate more what `x`, `y`, and `z` dimensions
mean here. One thing I note is that `OpenCL` (IIRC?) actually reverses these?
So it is VERY important that we document both order and meaning explicitly.
https://github.com/llvm/llvm-project/pull/79035
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