[TOPI] Fix index dtype in topi strided_slice (apache#14022)

try use more proper index dtype than i64 to avoid integer arith issue in lowering.

include/tvm/topi/transform.h

@@ -710,16 +710,17 @@ inline te::Tensor dynamic_strided_slice(const te::Tensor& x, const te::Tensor& b
                                         const te::Tensor& end, const te::Tensor& strides,
                                         std::string name = "T_strided_slice_dynamic",
                                         std::string tag = topi::kInjective) {
+  DataType index_dtype = begin->shape[0]->dtype;
   const int64_t num_dynamic_axes = begin->shape[0].as<IntImmNode>()->value;
   ICHECK_EQ(end->shape[0].as<IntImmNode>()->value, num_dynamic_axes);
   ICHECK_EQ(strides->shape[0].as<IntImmNode>()->value, num_dynamic_axes);
 
   Array<PrimExpr> begin_expr, end_expr, strides_expr;
   for (int64_t i = 0; i < num_dynamic_axes; ++i) {
-    auto i64_ind = IntImm(DataType::Int(64), i);
-    begin_expr.push_back(begin(i64_ind));
-    end_expr.push_back(end(i64_ind));
-    strides_expr.push_back(strides(i64_ind));
+    auto ind = make_const(index_dtype, i);
+    begin_expr.push_back(begin(ind));
+    end_expr.push_back(end(ind));
+    strides_expr.push_back(strides(ind));
   }
   return dynamic_strided_slice(x, begin_expr, end_expr, strides_expr, name, tag);
 }
@@ -822,9 +823,10 @@ inline Tensor strided_slice(const Tensor& x, const Array<Integer>& begin, const
   Array<Integer> end_full(end);
   Array<Integer> strides_full(strides);
 
-  const IntImm one = IntImm(DataType::Int(64), 1);
-  const IntImm zero = IntImm(DataType::Int(64), 0);
-  const IntImm max_range = IntImm(DataType::Int(64), std::numeric_limits<int64_t>::max());
+  DataType index_dtype = begin.size() > 0 ? begin[0]->dtype : DataType::Int(64);
+  const IntImm one = IntImm(index_dtype, 1);
+  const IntImm zero = IntImm(index_dtype, 0);
+  const IntImm max_range = Downcast<IntImm>(max_value(index_dtype));
 
   for (size_t i = strides.size(); i < src_tensor_dim; ++i) {
     strides_full.push_back(one);