[BUG FIX][OPT] fix the issue that opt can not support host kernels #3349

cmake/lite.cmake

@@ -325,16 +325,11 @@ function(add_kernel TARGET device level)
         set(arm_kernels "${arm_kernels};${TARGET}" CACHE INTERNAL "")
     endif()
     if ("${device}" STREQUAL "X86")
-        if (NOT LITE_WITH_X86)
+        if (NOT LITE_WITH_X86 OR LITE_ON_MODEL_OPTIMIZE_TOOL)
             foreach(src ${args_SRCS})
                 file(APPEND ${fake_kernels_src_list} "${CMAKE_CURRENT_SOURCE_DIR}/${src}\n")
             endforeach()
             return()
-        elseif (LITE_ON_MODEL_OPTIMIZE_TOOL)
-            foreach(src ${args_SRCS})
-                file(APPEND ${kernels_src_list} "${CMAKE_CURRENT_SOURCE_DIR}/${src}\n")
-            endforeach()
-            return()
         endif()
         set(x86_kernels "${x86_kernels};${TARGET}" CACHE INTERNAL "")
     endif()

lite/api/CMakeLists.txt

@@ -312,7 +312,7 @@ add_dependencies(opt_base supported_kernel_op_info_h framework_proto all_kernel_
 if (LITE_ON_MODEL_OPTIMIZE_TOOL)
     message(STATUS "Compiling opt")
     lite_cc_binary(opt SRCS opt.cc cxx_api_impl.cc paddle_api.cc cxx_api.cc
-        DEPS gflags kernel op optimizer mir_passes utils)
+        DEPS gflags kernel op optimizer mir_passes utils ${host_kernels})
     add_dependencies(opt op_list_h kernel_list_h all_kernel_faked_cc supported_kernel_op_info_h)
 endif(LITE_ON_MODEL_OPTIMIZE_TOOL)
 

lite/api/opt.cc

@@ -23,6 +23,7 @@
 #include "kernel_src_map.h"     // NOLINT
 #include "lite/api/cxx_api.h"
 #include "lite/api/paddle_api.h"
+#include "lite/api/paddle_use_kernels.h"
 #include "lite/api/paddle_use_ops.h"
 #include "lite/api/paddle_use_passes.h"
 #include "lite/core/op_registry.h"

lite/kernels/host/multiclass_nms_compute.cc

@@ -92,6 +92,7 @@ T PolyIoU(const T* box1,
           const size_t box_size,
           const bool normalized) {
   LOG(FATAL) << "PolyIoU not implement.";
+  return *box1;
 }
 
 template <class T>