feat: support aten::eq.str evaluator

Signed-off-by: Ruoqian Guo <[email protected]>

Author: ruoqianguo

core/conversion/evaluators/aten.cpp

@@ -33,6 +33,7 @@ DEFINE_GENERIC_TWO_INPUT_EVALUATOR(
         "aten::eq.bool(bool a, bool b) -> (bool)",
         "aten::eq.int(int a, int b) -> (bool)",
         "aten::eq.float(float a, float b) -> (bool)",
+        "aten::eq.str(str a, str b) -> (bool)",
         "aten::eq.int_float(int a, float b) -> (bool)",
         "aten::eq.float_int(float a, int b) -> (bool)",
     }));

core/conversion/evaluators/eval_macros.h

@@ -57,6 +57,17 @@
                  << node_kind << " evaluator b arg:" << args.at(n->input(1)).IValue()->type()->str()); \
              return {};                                                                                \
            }                                                                                           \
+         } else if (args.at(n->input(0)).IValue()->isString()) {                                       \
+           auto a = args.at(n->input(0)).unwrapToString();                                             \
+           if (args.at(n->input(1)).IValue()->isString()) {                                            \
+             auto b = args.at(n->input(1)).unwrapToString();                                           \
+             return operation;                                                                         \
+           } else {                                                                                    \
+             TRTORCH_THROW_ERROR(                                                                      \
+                 "Unimplemented data type for "                                                        \
+                 << node_kind << " evaluator b arg:" << args.at(n->input(1)).IValue()->type()->str()); \
+             return {};                                                                                \
+           }                                                                                           \
          } else {                                                                                      \
            TRTORCH_THROW_ERROR(                                                                        \
                "Unimplemented data type for "                                                          \

core/conversion/var/Var.h

@@ -36,6 +36,8 @@ class Var : torch::CustomClassHolder {
   double unwrapToDouble();
   bool unwrapToBool(bool default_val);
   bool unwrapToBool();
+  std::string unwrapToString(std::string default_val);
+  std::string unwrapToString();
   c10::Scalar unwrapToScalar(c10::Scalar default_val);
   c10::Scalar unwrapToScalar();
   c10::List<int64_t> unwrapToIntList(c10::List<int64_t> default_val);

core/conversion/var/Var_inl.h

@@ -38,6 +38,7 @@ DEFINE_UNWRAP_TO(at::Tensor, Tensor)
 DEFINE_UNWRAP_TO(int64_t, Int)
 DEFINE_UNWRAP_TO(double, Double)
 DEFINE_UNWRAP_TO(bool, Bool)
+DEFINE_UNWRAP_TO(std::string, String)
 DEFINE_UNWRAP_TO(c10::Scalar, Scalar)
 DEFINE_UNWRAP_TO(c10::List<int64_t>, IntList)
 DEFINE_UNWRAP_TO(c10::List<double>, DoubleList)

tests/core/conversion/evaluators/test_aten_evaluators.cpp

@@ -506,5 +506,39 @@ TEST(Evaluators, ATenIsFloatingPointEvaluatesFalseCorrectly) {
   auto jit_results = trtorch::tests::util::EvaluateGraphJIT(g, {in});
   auto trt_results = trtorch::tests::util::EvaluateGraph(g->block(), {in_trt});
 
+  ASSERT_TRUE(jit_results[0] == trt_results[0]);
+}
+
+TEST(Evaluators, EqStrResultIsTrueEvaluatesCorrectly) {
+  const auto graph = R"IR(
+      graph():
+        %1 : str = prim::Constant[value="res3"]()
+        %2 : str = prim::Constant[value="res3"]()
+        %3 : bool = aten::eq(%1, %2)
+        return (%3))IR";
+
+  auto g = std::make_shared<torch::jit::Graph>();
+  torch::jit::parseIR(graph, g.get());
+
+  auto jit_results = trtorch::tests::util::EvaluateGraphJIT(g, {});
+  auto trt_results = trtorch::tests::util::EvaluateGraph(g->block(), {});
+
+  ASSERT_TRUE(jit_results[0] == trt_results[0]);
+}
+
+TEST(Evaluators, EqStrResultIsFalseEvaluatesCorrectly) {
+  const auto graph = R"IR(
+      graph():
+        %1 : str = prim::Constant[value="res3"]()
+        %2 : str = prim::Constant[value="res4"]()
+        %3 : bool = aten::eq(%1, %2)
+        return (%3))IR";
+
+  auto g = std::make_shared<torch::jit::Graph>();
+  torch::jit::parseIR(graph, g.get());
+
+  auto jit_results = trtorch::tests::util::EvaluateGraphJIT(g, {});
+  auto trt_results = trtorch::tests::util::EvaluateGraph(g->block(), {});
+
   ASSERT_TRUE(jit_results[0] == trt_results[0]);
 }