[Mlir-commits] [mlir] [mlir][vector] Fix multi-reduction unrolling with a lower rank target shape (PR #216799)

[Federico Bruzzone]

================
@@ -383,17 +383,24 @@ struct UnrollMultiReductionPattern
     Location loc = reductionOp.getLoc();
     auto resultType = reductionOp->getResult(0).getType();
 
+    // A target shape with fewer dimensions than the source vector applies to
+    // its trailing dimensions. Add leading unit dimensions so that it can be
+    // used to slice the source and to index its dimensions, the same way
+    // UnrollElementwisePattern does.
----------------
FedericoBruzzone wrote:

```suggestion
    // A target shape with fewer dimensions than the source vector applies to
    // its trailing dimensions. Add leading unit dimensions so that it can be
    // used to slice the source and to index its dimensions.
```

https://github.com/llvm/llvm-project/pull/216799