[Intel] Fix Windows build after 'd907aed'

Signed-off-by: Anatoly Myachev <[email protected]>

Author: anmyachev

include/triton/Tools/PluginUtils.h

@@ -12,8 +12,14 @@ enum TritonPluginResult {
   TP_GENERIC_FAILURE = 1,
 };
 };
-#define TRITON_PLUGIN_API                                                      \
-  extern "C" __attribute__((visibility("default"))) TritonPluginResult
+
+#if defined(_WIN32)
+#define EXPORT_FUNC __declspec(dllexport)
+#else
+#define EXPORT_FUNC __attribute__((visibility("default")))
+#endif
+
+#define TRITON_PLUGIN_API extern "C" EXPORT_FUNC TritonPluginResult
 
 struct TritonPlugin {
   TritonPlugin() = delete;

lib/Plugins/TritonPlugin.cpp

@@ -6,8 +6,13 @@
 #include "triton/Tools/PluginUtils.h"
 #include <unordered_map>
 
-#define TRITON_PLUGIN_API                                                      \
-  extern "C" __attribute__((visibility("default"))) TritonPluginResult
+#if defined(_WIN32)
+#define EXPORT_FUNC __declspec(dllexport)
+#else
+#define EXPORT_FUNC __attribute__((visibility("default")))
+#endif
+
+#define TRITON_PLUGIN_API extern "C" EXPORT_FUNC TritonPluginResult
 
 namespace mlir {
 namespace triton {