[mlir][sparse] remove unused COO method

[aartbik]

step closer towards moving all type related methods into encoding and/or sparse tensor type class

[llvmbot]

@llvm/pr-subscribers-mlir-sparse

@llvm/pr-subscribers-mlir

Author: Aart Bik (aartbik)

Changes

step closer towards moving all type related methods into encoding and/or sparse tensor type class

---

Full diff: https://github.com/llvm/llvm-project/pull/73595.diff

2 Files Affected:

• (modified) mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensor.h (+1-3)
• (modified) mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp (+1-8)

diff --git a/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensor.h b/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensor.h
index f102f0270154264..517c286e0206997 100644
--- a/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensor.h
+++ b/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensor.h
@@ -102,12 +102,10 @@ bool isUniqueCOOType(Type tp);
 /// the level-rank.
 Level getCOOStart(SparseTensorEncodingAttr enc);
 
-/// Helpers to setup a COO type.
+/// Helper to setup a COO type.
 RankedTensorType getCOOFromTypeWithOrdering(RankedTensorType src,
                                             AffineMap ordering, bool ordered);
 
-RankedTensorType getCOOFromType(RankedTensorType src, bool ordered);
-
 /// Returns true iff MLIR operand has any sparse operand.
 inline bool hasAnySparseOperand(Operation *op) {
   return llvm::any_of(op->getOperands().getTypes(), [](Type t) {
diff --git a/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp b/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
index c4a828a20465a80..ff2930008fa093f 100644
--- a/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
+++ b/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
@@ -878,7 +878,7 @@ Level mlir::sparse_tensor::getCOOStart(SparseTensorEncodingAttr enc) {
   return lvlRank;
 }
 
-// Helpers to setup a COO type.
+// Helper to setup a COO type.
 RankedTensorType sparse_tensor::getCOOFromTypeWithOrdering(RankedTensorType rtt,
                                                            AffineMap lvlPerm,
                                                            bool ordered) {
@@ -911,13 +911,6 @@ RankedTensorType sparse_tensor::getCOOFromTypeWithOrdering(RankedTensorType rtt,
   return RankedTensorType::get(src.getDimShape(), src.getElementType(), enc);
 }
 
-RankedTensorType sparse_tensor::getCOOFromType(RankedTensorType src,
-                                               bool ordered) {
-  return getCOOFromTypeWithOrdering(
-      src, AffineMap::getMultiDimIdentityMap(src.getRank(), src.getContext()),
-      ordered);
-}
-
 Dimension mlir::sparse_tensor::toDim(SparseTensorEncodingAttr enc, Level l) {
   if (enc) {
     assert(enc.isPermutation() && "Non permutation map not supported");