[intel] Fix windows build after 'db379e8'

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

Author: anmyachev

lib/Dialect/TritonNvidiaGPU/IR/Ops.cpp

@@ -31,6 +31,10 @@
 #include "triton/Dialect/TritonNvidiaGPU/IR/TritonNvidiaGPUOpInterfaces.cpp.inc"
 #include "triton/Dialect/TritonNvidiaGPU/Transforms/Utility.h"
 
+#if defined(_MSC_VER) && !defined(__clang__)
+#define __builtin_unreachable() __assume(0)
+#endif
+
 using namespace mlir::triton::gpu;
 
 namespace mlir {