[Mlir-commits] [mlir] [mlir][gpu] Add gpu.rotate operation (PR #142796)

[Jakub Kuderski]

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@@ -1364,6 +1364,49 @@ def GPU_ShuffleOp : GPU_Op<
   ];
 }
 
+def GPU_RotateOp : GPU_Op<
+    "rotate", [Pure, AllTypesMatch<["value", "rotateResult"]>]>,
+    Arguments<(ins AnyIntegerOrFloatOr1DVector:$value, I32:$offset, I32:$width)>,
+    Results<(outs AnyIntegerOrFloatOr1DVector:$rotateResult)> {
+  let summary = "Rotate values within a subgroup.";
+  let description = [{
+    The "rotate" op moves values across lanes (a.k.a., invocations, work items)
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kuhar wrote:

work item == thread, no? This seems incorrect.

https://github.com/llvm/llvm-project/pull/142796