Remove redundant JNI dependencies and replace for loop copy with memcpy

paddle/fluid/lite/api/android/jni/CMakeLists.txt

@@ -37,8 +37,7 @@ add_custom_target(
 include_directories(${JNI_INCLUDE_DIRS} ${_classDir} ${_stubDir})
 lite_cc_library(paddle_lite_jni MODULE SRCS paddle_lite_jni.cc 
     DEPS light_api_lite cxx_api_lite
-        paddle_api_full paddle_api_lite paddle_api_light op_registry_lite
-        ${ops_lite} ${lite_kernel_deps}
+        paddle_api_full paddle_api_lite paddle_api_light
     ARM_DEPS ${arm_kernels})
 if (APPLE)
     # MacOS only accepts JNI lib ends with .jnilib or .dylib
@@ -48,5 +47,4 @@ elseif (WIN32)
     set_target_properties(paddle_lite_jni PROPERTIES SUFFIX ".dll")
 endif (APPLE)
 target_link_libraries(paddle_lite_jni light_api_lite cxx_api_lite
-    paddle_api_full paddle_api_lite paddle_api_light op_registry_lite 
-    ${ops_lite} ${arm_kernels} ${lite_kernel_deps})
+    paddle_api_full paddle_api_lite paddle_api_light ${arm_kernels})

paddle/fluid/lite/api/android/jni/paddle_lite_jni.cc

@@ -248,9 +248,7 @@ Java_com_baidu_paddle_lite_PaddlePredictor_setInput__I_3I_3F(
       predictor->GetInput(static_cast<int>(offset));
   tensor->Resize(ddim);
   float *input = tensor->mutable_data<float>();
-  for (int i = 0; i < len; ++i) {
-    input[i] = buffer[i];
-  }
+  memcpy(input, buffer, sizeof(float) * len);
   return JNI_TRUE;
 }
 
@@ -272,9 +270,7 @@ Java_com_baidu_paddle_lite_PaddlePredictor_setInput__I_3I_3B(
       predictor->GetInput(static_cast<int>(offset));
   tensor->Resize(ddim);
   int8_t *input = tensor->mutable_data<int8_t>();
-  for (int i = 0; i < len; ++i) {
-    input[i] = (int8_t)buffer[i];
-  }
+  memcpy(input, buffer, sizeof(int8_t) * len);
 
   return JNI_TRUE;
 }