[Mlir-commits] [mlir] [mlir][vector] Add vector.step operation (PR #96776)

[Cullen Rhodes]

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@@ -3017,6 +3017,35 @@ def Vector_ScanOp :
   let hasVerifier = 1;
 }
 
+//===----------------------------------------------------------------------===//
+// VectorStepOp
+//===----------------------------------------------------------------------===//
+
+def Vector_StepOp : Vector_Op<"step", [Pure]> {
+  let summary = "A linear sequence of values from 0 to N";
+  let description = [{
+    A `step` operation produces an index vector, i.e. a 1-D vector of values of
+    index type that represents a linear sequence from 0 to N, where N is the
+    number of elements in the `result` vector.
+
+    Supports fixed-width and scalable vectors. For a fixed-width `step` vector,
+    the canonical representation is `arith.constant dense<[0, .., N]>`. A
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c-rhodes wrote:

N-1, fixed thanks!

https://github.com/llvm/llvm-project/pull/96776