[mlir][sparse] cleanup sparse runtime library (#82807)

remove some obsoleted APIs from the library that have been fully
replaced with actual direct IR codegen

5 files changed, 12 insertions, 121 deletions

diff --git a/mlir/include/mlir/Dialect/SparseTensor/IR/Enums.h b/mlir/include/mlir/Dialect/SparseTensor/IR/Enums.h
index a00c9c31256c..1c81d80ea7ec 100644
--- a/mlir/include/mlir/Dialect/SparseTensor/IR/Enums.h
+++ b/mlir/include/mlir/Dialect/SparseTensor/IR/Enums.h
@@ -145,12 +145,9 @@ constexpr bool isComplexPrimaryType(PrimaryType valTy) {
 /// The actions performed by @newSparseTensor.
 enum class Action : uint32_t {
   kEmpty = 0,
-  kEmptyForward = 1,
-  kFromCOO = 2,
-  kFromReader = 4,
-  kToCOO = 5,
-  kPack = 7,
-  kSortCOOInPlace = 8,
+  kFromReader = 1,
+  kPack = 2,
+  kSortCOOInPlace = 3,
 };
 
 /// This enum defines all supported storage format without the level properties.
diff --git a/mlir/include/mlir/ExecutionEngine/SparseTensor/Storage.h b/mlir/include/mlir/ExecutionEngine/SparseTensor/Storage.h
index eff1aca42d3e..fe0e08b5c840 100644
--- a/mlir/include/mlir/ExecutionEngine/SparseTensor/Storage.h
+++ b/mlir/include/mlir/ExecutionEngine/SparseTensor/Storage.h
@@ -149,13 +149,6 @@ public:
   MLIR_SPARSETENSOR_FOREVERY_V(DECL_GETVALUES)
 #undef DECL_GETVALUES
 
-  /// Element-wise forwarding insertions. The first argument is the
-  /// dimension-coordinates for the value being inserted.
-#define DECL_FORWARDINGINSERT(VNAME, V)                                        \
-  virtual void forwardingInsert(const uint64_t *, V);
-  MLIR_SPARSETENSOR_FOREVERY_V(DECL_FORWARDINGINSERT)
-#undef DECL_FORWARDINGINSERT
-
   /// Element-wise insertion in lexicographic coordinate order. The first
   /// argument is the level-coordinates for the value being inserted.
 #define DECL_LEXINSERT(VNAME, V) virtual void lexInsert(const uint64_t *, V);
@@ -171,9 +164,6 @@ public:
   MLIR_SPARSETENSOR_FOREVERY_V(DECL_EXPINSERT)
 #undef DECL_EXPINSERT
 
-  /// Finalizes forwarding insertions.
-  virtual void endForwardingInsert() = 0;
-
   /// Finalizes lexicographic insertions.
   virtual void endLexInsert() = 0;
 
@@ -248,7 +238,7 @@ public:
   static SparseTensorStorage<P, C, V> *
   newEmpty(uint64_t dimRank, const uint64_t *dimSizes, uint64_t lvlRank,
            const uint64_t *lvlSizes, const LevelType *lvlTypes,
-           const uint64_t *dim2lvl, const uint64_t *lvl2dim, bool forwarding);
+           const uint64_t *dim2lvl, const uint64_t *lvl2dim);
 
   /// Allocates a new sparse tensor and initializes it from the given COO.
   static SparseTensorStorage<P, C, V> *
@@ -284,13 +274,6 @@ public:
     *out = &values;
   }
 
-  /// Partially specialize forwarding insertions based on template types.
-  void forwardingInsert(const uint64_t *dimCoords, V val) final {
-    assert(dimCoords && coo);
-    map.pushforward(dimCoords, lvlCursor.data());
-    coo->add(lvlCursor, val);
-  }
-
   /// Partially specialize lexicographical insertions based on template types.
   void lexInsert(const uint64_t *lvlCoords, V val) final {
     assert(lvlCoords);
@@ -345,21 +328,6 @@ public:
     }
   }
 
-  /// Finalizes forwarding insertions.
-  void endForwardingInsert() final {
-    // Ensure COO is sorted.
-    assert(coo);
-    coo->sort();
-    // Now actually insert the `elements`.
-    const auto &elements = coo->getElements();
-    const uint64_t nse = elements.size();
-    assert(values.size() == 0);
-    values.reserve(nse);
-    fromCOO(elements, 0, nse, 0);
-    delete coo;
-    coo = nullptr;
-  }
-
   /// Finalizes lexicographic insertions.
   void endLexInsert() final {
     if (!allDense) {
@@ -653,13 +621,10 @@ template <typename P, typename C, typename V>
 SparseTensorStorage<P, C, V> *SparseTensorStorage<P, C, V>::newEmpty(
     uint64_t dimRank, const uint64_t *dimSizes, uint64_t lvlRank,
     const uint64_t *lvlSizes, const LevelType *lvlTypes,
-    const uint64_t *dim2lvl, const uint64_t *lvl2dim, bool forwarding) {
-  SparseTensorCOO<V> *lvlCOO = nullptr;
-  if (forwarding)
-    lvlCOO = new SparseTensorCOO<V>(lvlRank, lvlSizes);
+    const uint64_t *dim2lvl, const uint64_t *lvl2dim) {
   return new SparseTensorStorage<P, C, V>(dimRank, dimSizes, lvlRank, lvlSizes,
-                                          lvlTypes, dim2lvl, lvl2dim, lvlCOO,
-                                          !forwarding);
+                                          lvlTypes, dim2lvl, lvl2dim, nullptr,
+                                          true);
 }
 
 template <typename P, typename C, typename V>
diff --git a/mlir/include/mlir/ExecutionEngine/SparseTensorRuntime.h b/mlir/include/mlir/ExecutionEngine/SparseTensorRuntime.h
index 8b0829aab0d8..d916186c835c 100644
--- a/mlir/include/mlir/ExecutionEngine/SparseTensorRuntime.h
+++ b/mlir/include/mlir/ExecutionEngine/SparseTensorRuntime.h
@@ -38,15 +38,12 @@ extern "C" {
 /// This is the "swiss army knife" method for materializing sparse
 /// tensors into the computation.  The types of the `ptr` argument and
 /// the result depend on the action, as explained in the following table,
-/// where "STS" means a sparse-tensor-storage object and "COO" means
-/// a coordinate-scheme object.
+/// where "STS" means a sparse-tensor-storage object.
 ///
 /// Action:         `ptr`:          Returns:
+/// ---------------------------------------------------------------------------
 /// kEmpty          -               STS, empty
-/// kEmptyForward   -               STS, empty, with forwarding COO
-/// kFromCOO        COO             STS, copied from the COO source
 /// kFromReader     reader          STS, input from reader
-/// kToCOO          STS             COO, copied from the STS source
 /// kPack           buffers         STS, from level buffers
 /// kSortCOOInPlace STS             STS, sorted in place
 MLIR_CRUNNERUTILS_EXPORT void *_mlir_ciface_newSparseTensor( // NOLINT
@@ -80,14 +77,6 @@ MLIR_SPARSETENSOR_FOREVERY_O(DECL_SPARSEPOSITIONS)
 MLIR_SPARSETENSOR_FOREVERY_O(DECL_SPARSECOORDINATES)
 #undef DECL_SPARSECOORDINATES
 
-/// Tensor-storage method for a dim to lvl forwarding insertion.
-#define DECL_FORWARDINGINSERT(VNAME, V)                                        \
-  MLIR_CRUNNERUTILS_EXPORT void _mlir_ciface_forwardingInsert##VNAME(          \
-      void *tensor, StridedMemRefType<V, 0> *vref,                             \
-      StridedMemRefType<index_type, 1> *dimCoordsRef);                         \
-  MLIR_SPARSETENSOR_FOREVERY_V(DECL_FORWARDINGINSERT)
-#undef DECL_FORWARDINGINSERT
-
 /// Tensor-storage method to insert elements in lexicographical
 /// level-coordinate order.
 #define DECL_LEXINSERT(VNAME, V)                                               \
@@ -160,21 +149,12 @@ MLIR_CRUNNERUTILS_EXPORT index_type sparseLvlSize(void *tensor, index_type l);
 /// Tensor-storage method to get the size of the given dimension.
 MLIR_CRUNNERUTILS_EXPORT index_type sparseDimSize(void *tensor, index_type d);
 
-/// Tensor-storage method to finalize forwarding insertions.
-MLIR_CRUNNERUTILS_EXPORT void endForwardingInsert(void *tensor);
-
 /// Tensor-storage method to finalize lexicographic insertions.
 MLIR_CRUNNERUTILS_EXPORT void endLexInsert(void *tensor);
 
 /// Releases the memory for the tensor-storage object.
 MLIR_CRUNNERUTILS_EXPORT void delSparseTensor(void *tensor);
 
-/// Releases the memory for the coordinate-scheme object.
-#define DECL_DELCOO(VNAME, V)                                                  \
-  MLIR_CRUNNERUTILS_EXPORT void delSparseTensorCOO##VNAME(void *coo);
-MLIR_SPARSETENSOR_FOREVERY_V(DECL_DELCOO)
-#undef DECL_DELCOO
-
 /// Helper function to read a sparse tensor filename from the environment,
 /// defined with the naming convention ${TENSOR0}, ${TENSOR1}, etc.
 MLIR_CRUNNERUTILS_EXPORT char *getTensorFilename(index_type id);
diff --git a/mlir/lib/ExecutionEngine/SparseTensor/Storage.cpp b/mlir/lib/ExecutionEngine/SparseTensor/Storage.cpp
index 9e8b240899d8..bbe10b0dcdd4 100644
--- a/mlir/lib/ExecutionEngine/SparseTensor/Storage.cpp
+++ b/mlir/lib/ExecutionEngine/SparseTensor/Storage.cpp
@@ -74,13 +74,6 @@ MLIR_SPARSETENSOR_FOREVERY_FIXED_O(IMPL_GETCOORDINATES)
 MLIR_SPARSETENSOR_FOREVERY_V(IMPL_GETVALUES)
 #undef IMPL_GETVALUES
 
-#define IMPL_FORWARDINGINSERT(VNAME, V)                                        \
-  void SparseTensorStorageBase::forwardingInsert(const uint64_t *, V) {        \
-    FATAL_PIV("forwardingInsert" #VNAME);                                      \
-  }
-MLIR_SPARSETENSOR_FOREVERY_V(IMPL_FORWARDINGINSERT)
-#undef IMPL_FORWARDINGINSERT
-
 #define IMPL_LEXINSERT(VNAME, V)                                               \
   void SparseTensorStorageBase::lexInsert(const uint64_t *, V) {               \
     FATAL_PIV("lexInsert" #VNAME);                                             \
diff --git a/mlir/lib/ExecutionEngine/SparseTensorRuntime.cpp b/mlir/lib/ExecutionEngine/SparseTensorRuntime.cpp
index a5e75a77b4e4..0bc90b281b7c 100644
--- a/mlir/lib/ExecutionEngine/SparseTensorRuntime.cpp
+++ b/mlir/lib/ExecutionEngine/SparseTensorRuntime.cpp
@@ -117,20 +117,7 @@ extern "C" {
     switch (action) {                                                          \
     case Action::kEmpty: {                                                     \
       return SparseTensorStorage<P, C, V>::newEmpty(                           \
-          dimRank, dimSizes, lvlRank, lvlSizes, lvlTypes, dim2lvl, lvl2dim,    \
-          false);                                                              \
-    }                                                                          \
-    case Action::kEmptyForward: {                                              \
-      return SparseTensorStorage<P, C, V>::newEmpty(                           \
-          dimRank, dimSizes, lvlRank, lvlSizes, lvlTypes, dim2lvl, lvl2dim,    \
-          true);                                                               \
-    }                                                                          \
-    case Action::kFromCOO: {                                                   \
-      assert(ptr && "Received nullptr for SparseTensorCOO object");            \
-      auto &coo = *static_cast<SparseTensorCOO<V> *>(ptr);                     \
-      return SparseTensorStorage<P, C, V>::newFromCOO(                         \
-          dimRank, dimSizes, lvlRank, lvlSizes, lvlTypes, dim2lvl, lvl2dim,    \
-          coo);                                                                \
+          dimRank, dimSizes, lvlRank, lvlSizes, lvlTypes, dim2lvl, lvl2dim);   \
     }                                                                          \
     case Action::kFromReader: {                                                \
       assert(ptr && "Received nullptr for SparseTensorReader object");         \
@@ -138,11 +125,6 @@ extern "C" {
       return static_cast<void *>(reader.readSparseTensor<P, C, V>(             \
           lvlRank, lvlSizes, lvlTypes, dim2lvl, lvl2dim));                     \
     }                                                                          \
-    case Action::kToCOO: {                                                     \
-      assert(ptr && "Received nullptr for SparseTensorStorage object");        \
-      auto &tensor = *static_cast<SparseTensorStorage<P, C, V> *>(ptr);        \
-      return tensor.toCOO();                                                   \
-    }                                                                          \
     case Action::kPack: {                                                      \
       assert(ptr && "Received nullptr for SparseTensorStorage object");        \
       intptr_t *buffers = static_cast<intptr_t *>(ptr);                        \
@@ -341,21 +323,6 @@ MLIR_SPARSETENSOR_FOREVERY_O(IMPL_SPARSECOORDINATES)
 #undef IMPL_SPARSECOORDINATES
 #undef IMPL_GETOVERHEAD
 
-#define IMPL_FORWARDINGINSERT(VNAME, V)                                        \
-  void _mlir_ciface_forwardingInsert##VNAME(                                   \
-      void *t, StridedMemRefType<V, 0> *vref,                                  \
-      StridedMemRefType<index_type, 1> *dimCoordsRef) {                        \
-    assert(t &&vref);                                                          \
-    ASSERT_NO_STRIDE(dimCoordsRef);                                            \
-    const index_type *dimCoords = MEMREF_GET_PAYLOAD(dimCoordsRef);            \
-    assert(dimCoords);                                                         \
-    const V *value = MEMREF_GET_PAYLOAD(vref);                                 \
-    static_cast<SparseTensorStorageBase *>(t)->forwardingInsert(dimCoords,     \
-                                                                *value);       \
-  }
-MLIR_SPARSETENSOR_FOREVERY_V(IMPL_FORWARDINGINSERT)
-#undef IMPL_FORWARDINGINSERT
-
 #define IMPL_LEXINSERT(VNAME, V)                                               \
   void _mlir_ciface_lexInsert##VNAME(                                          \
       void *t, StridedMemRefType<index_type, 1> *lvlCoordsRef,                 \
@@ -427,8 +394,8 @@ void _mlir_ciface_getSparseTensorReaderDimSizes(
     const uint64_t cSize = MEMREF_GET_USIZE(cref);                             \
     const uint64_t vSize = MEMREF_GET_USIZE(vref);                             \
     ASSERT_USIZE_EQ(lvl2dimRef, dimRank);                                      \
-    assert(cSize >= lvlRank * vSize);                                          \
-    assert(vSize >= reader.getNSE() && "Not enough space in buffers");         \
+    assert(cSize >= lvlRank * reader.getNSE());                                \
+    assert(vSize >= reader.getNSE());                                          \
     (void)dimRank;                                                             \
     (void)cSize;                                                               \
     (void)vSize;                                                               \
@@ -488,10 +455,6 @@ index_type sparseDimSize(void *tensor, index_type d) {
   return static_cast<SparseTensorStorageBase *>(tensor)->getDimSize(d);
 }
 
-void endForwardingInsert(void *tensor) {
-  return static_cast<SparseTensorStorageBase *>(tensor)->endForwardingInsert();
-}
-
 void endLexInsert(void *tensor) {
   return static_cast<SparseTensorStorageBase *>(tensor)->endLexInsert();
 }
@@ -500,13 +463,6 @@ void delSparseTensor(void *tensor) {
   delete static_cast<SparseTensorStorageBase *>(tensor);
 }
 
-#define IMPL_DELCOO(VNAME, V)                                                  \
-  void delSparseTensorCOO##VNAME(void *coo) {                                  \
-    delete static_cast<SparseTensorCOO<V> *>(coo);                             \
-  }
-MLIR_SPARSETENSOR_FOREVERY_V(IMPL_DELCOO)
-#undef IMPL_DELCOO
-
 char *getTensorFilename(index_type id) {
   constexpr size_t bufSize = 80;
   char var[bufSize];