[Mlir-commits] [mlir] [mlir][sparse] Populate lvlToDim (PR #68937)

[Aart Bik]

================
@@ -159,6 +159,13 @@ inline bool hasAnySparseOperandOrResult(Operation *op) {
   return hasAnySparseOperand(op) || hasAnySparseResult(op);
 }
 
+//
+// Inference.
+//
+
+AffineMap inferLvlToDim(AffineMap dimToLvl, MLIRContext *context);
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aartbik wrote:

Add doc to both methods, for example

/// Given the dimToLvl map, infers the lvlToDim map, or returns empty Affine when inference fails.

and

/// Returns the lvlToDim map for the given dimToLvl map specific to the block sparse cases. Asserts on failure (so only use when known to succeed).

Or something like that

https://github.com/llvm/llvm-project/pull/68937