TilingwithTensorIntrin works

Author: masahi

src/meta_schedule/schedule_rule/multi_level_tiling.cc

@@ -364,6 +364,7 @@ std::vector<State> SubRule(std::vector<State> states, FLambda sub_rule) {
  */
 class MultiLevelTilingNode : public ScheduleRuleNode {
  public:
+  inline std::vector<State> TileForVNNI(State state) const;
   // SubRule 1. add write cache
   inline std::vector<State> AddWriteReuse(State state) const;
   // SubRule 2. tile the loop nest
@@ -390,7 +391,9 @@ class MultiLevelTilingNode : public ScheduleRuleNode {
     }
     sch->Annotate(block_rv, tir::attr::meta_schedule_tiling_structure, structure);
 
+    LOG(INFO) << "Doing multi level tiling";
     std::vector<State> states{State(sch, block_rv)};
+    states = SubRule(std::move(states), [&](State state) { return TileForVNNI(state); });
     states = SubRule(std::move(states), [&](State state) { return TileLoopNest(state); });
     states = SubRule(std::move(states), [&](State state) { return AddWriteReuse(state); });
     states = SubRule(std::move(states), [&](State state) { return AddReadReuse(state); });
@@ -444,6 +447,19 @@ class MultiLevelTilingNode : public ScheduleRuleNode {
   TVM_DECLARE_FINAL_OBJECT_INFO(MultiLevelTilingNode, ScheduleRuleNode);
 };
 
+inline std::vector<State> MultiLevelTilingNode::TileForVNNI(State state) const {
+  std::vector<State> result;
+  BlockRV block_rv = state.block_rv;
+  const std::string intrin_name = "dot_16x1x16_uint8_int8_int32_cascadelake";
+  Optional<LoopRV> tiled_loop_rv = TilingwithTensorIntrin(state.sch, block_rv, intrin_name);
+  ICHECK(tiled_loop_rv.defined());
+  LOG(INFO) << "After TilingwithTensorIntrin" << state.sch->mod();
+  state.block_rv = state.sch->Blockize(tiled_loop_rv.value());
+  state.sch->Annotate(block_rv, tir::attr::meta_schedule_auto_tensorize, String(intrin_name));
+  result.push_back(state);
+  return result;
+}
+
 inline std::vector<State> MultiLevelTilingNode::AddWriteReuse(State state) const {
   const ReuseConfig& config = this->reuse_write_;
   if (config.req == ReuseType::kNoReuse) {
@@ -503,6 +519,7 @@ inline std::vector<State> MultiLevelTilingNode::TileLoopNest(State state) const
   // Step 2. For each loop axis, tile it
   int64_t spatial_loop_product = 1;
   std::vector<Array<LoopRV>> tiles(s_indices_.size() + r_indices_.size());
+  LOG(INFO) << "Tile loops: " << loops.size();
   for (int i = 0, n = loops.size(); i < n; ++i) {
     LoopRV loop = loops[i];
     const std::vector<int>* idx = nullptr;