[Bugfix] Consider buffer data type into indices provably disjoint analysis (#664)

Author: LeiWang1999

src/transform/thread_storage_sync.cc

@@ -273,38 +273,48 @@ class TileLangThreadSyncPlanner : public TileLangStorageAccessVisitor {
     }
 
     for (size_t i = 0; i < prev.buffer_indices.size(); i++) {
+      auto prev_dtype = prev.dtype;
+      auto curr_dtype = curr.dtype;
+
       const auto &prev_indice = prev.buffer_indices[i];
       const auto &curr_indice = curr.buffer_indices[i];
+
       if (!ExprDeepEqual()(prev_indice, curr_indice)) {
+        auto prev_indice_bytes =
+            analyzer_.Simplify(prev_indice * prev_dtype.bytes());
+        auto curr_indice_bytes =
+            analyzer_.Simplify(curr_indice * curr_dtype.bytes());
+
         has_same_index = false;
 
         // If both are const, we can check if they are disjoint
         // by checking if the bounds are disjoint
         // [1024, 2048], [2048, 3072] are disjoint
         // [1024, 2048], [1024, 1024] are not disjoint
-        auto prev_bound = analyzer_.const_int_bound(prev_indice);
-        auto curr_bound = analyzer_.const_int_bound(curr_indice);
+        auto prev_bound = analyzer_.const_int_bound(prev_indice_bytes);
+        auto curr_bound = analyzer_.const_int_bound(curr_indice_bytes);
         if (prev_bound.defined() && curr_bound.defined()) {
-          if (prev_bound->min_value > curr_bound->max_value ||
-              curr_bound->min_value > prev_bound->max_value) {
+          if ((prev_bound->min_value) > (curr_bound->max_value) ||
+              (curr_bound->min_value) > (prev_bound->max_value)) {
             range_is_overlap = false;
             break;
           }
         }
 
         // if we can prove prev_indice < curr_indice or prev_indice >
         // curr_indice, then they are not overlap
-        auto prev_dtype = prev_indice.dtype();
-        auto curr_dtype = curr_indice.dtype();
-        if (prev_dtype.lanes() != curr_dtype.lanes()) {
+        auto prev_indices_dtype = prev_indice.dtype();
+        auto curr_indices_dtype = curr_indice.dtype();
+        if (prev_indices_dtype.lanes() != curr_indices_dtype.lanes()) {
           // can not support different lanes binary op like <, >, <=, >=
           // skip otherwise it will lead to error
           continue;
         }
+
         bool provably_disjoint =
-            analyzer_.CanProve(prev_indice < curr_indice,
+            analyzer_.CanProve(prev_indice_bytes < curr_indice_bytes,
                                arith::ProofStrength::kSymbolicBound) ||
-            analyzer_.CanProve(prev_indice > curr_indice,
+            analyzer_.CanProve(prev_indice_bytes > curr_indice_bytes,
                                arith::ProofStrength::kSymbolicBound);
 
         if (provably_disjoint) {