[Mlir-commits] [mlir] [mlir][rocdl] Add IR examples to OP definitions (PR #182147)

[Krzysztof Drewniak]

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@@ -291,6 +327,15 @@ def ROCDL_DsBpermuteOp : ROCDL_ConcreteNonMemIntrOp<"ds_bpermute", [], 1>,
   let assemblyFormat = [{
     $index `,` $src  attr-dict `:` `(` type($index) `,` type($src) `)` `->` type($res)
    }];
+  let description = [{
+    Perform a backward permute operation across lanes using LDS hardware.
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krzysz00 wrote:

Can you do me a favor and grab the actual semantics out of the lower-level docs and stick them here? That is, I can't for the life of me remember which one is backwards permute

https://github.com/llvm/llvm-project/pull/182147