fix crop bug and eliminate Tensor.clone (#4416)

* fix crop bug and eliminate Tensor.clone

* fix crop slice bug on msvc

* fix slice bug on msvc

tools/pnnx/src/ir.cpp

@@ -183,8 +183,8 @@ Parameter::Parameter(const torch::jit::Node* value_node)
         {
             type = 2;
             int64_t i64 = value_node->i(torch::jit::attr::value);
-            if (i64 == LONG_MAX) i64 = INT_MAX;
-            if (i64 == LONG_MIN) i64 = INT_MIN;
+            if (i64 == std::numeric_limits<int64_t>::max()) i64 = INT_MAX;
+            if (i64 == std::numeric_limits<int64_t>::max()) i64 = INT_MIN;
             i = (int)i64;
             break;
         }
@@ -210,8 +210,8 @@ Parameter::Parameter(const torch::jit::Node* value_node)
                 {
                     type = 2;
                     int64_t i64 = t.item<int64_t>();
-                    if (i64 == LONG_MAX) i64 = INT_MAX;
-                    if (i64 == LONG_MIN) i64 = INT_MIN;
+                    if (i64 == std::numeric_limits<int64_t>::max()) i64 = INT_MAX;
+                    if (i64 == std::numeric_limits<int64_t>::max()) i64 = INT_MIN;
                     i = (int)i64;
                 }
                 else if (t.scalar_type() == c10::ScalarType::Int)

tools/pnnx/src/pass_ncnn/eliminate_noop.cpp

@@ -30,7 +30,7 @@ void eliminate_noop(Graph& graph)
         {
             Operator* op = graph.ops[i];
 
-            if (op->type != "Noop")
+            if (op->type != "Noop" && op->type != "Tensor.clone")
                 continue;
 
             need_eliminate = true;