[Mlir-commits] [mlir] [mlir][vector] Add `ShapeCastCreateMaskFolderLeadingOneDim` (PR #219494)

[Alessandro Potenza]

================
@@ -6974,9 +6974,114 @@ static VectorType trimTrailingOneDims(VectorType oldType) {
   return VectorType::get(newShape, oldType.getElementType(), newScalableDims);
 }
 
+/// Helper function that computes a new vector type based on the input vector
+/// type by removing the trailing one dims:
+///
+///   vector<4x1x1xi1> --> vector<4x1xi1>
----------------
alepot55 wrote:

Copy-paste from the trailing version.

```suggestion
/// type by removing the leading unit dims:
///
///   vector<1x1x4xi1> --> vector<4xi1>
```

https://github.com/llvm/llvm-project/pull/219494