[Mlir-commits] [mlir] [mlir][gpu] Add 'cluster_size' attribute to gpu.subgroup_reduce (PR #104851)

[Jakub Kuderski]

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@@ -620,6 +620,14 @@ LogicalResult gpu::SubgroupReduceOp::verify() {
                        << "` reduction operation is not compatible with type "
                        << getType();
   }
+
+  if (auto clusterSize = getClusterSize()) {
+    uint32_t size = *clusterSize;
+    if (size < 1 || !llvm::isPowerOf2_32(size)) {
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kuhar wrote:

`isPowerOf2` already covers being positive

https://github.com/llvm/llvm-project/pull/104851