[Mlir-commits] [mlir] [mlir][mesh] Add collective communication operations (PR #71960)

[Chengji Yao]

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@@ -129,6 +205,347 @@ MeshShardingAttr::verify(function_ref<InFlightDiagnostic()> emitError,
   return success();
 }
 
+//===----------------------------------------------------------------------===//
+// collective communication ops
+//===----------------------------------------------------------------------===//
+
+namespace {
+
+std::optional<DenseI16ArrayAttr>
+canonicalizeAxesSetAttribute(DenseI16ArrayAttr attr) {
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yaochengji wrote:

But it seems your reply cannot explain why we have to make `mesh_axes` support duplications like [2, 1, 2]?

https://github.com/llvm/llvm-project/pull/71960