The cl_khr_fp64 extension is now connected to the cuda plugin.

This change allows a skipped fp64 Reduction test in llvm-test-suite (reduction_nd_ext_double.cpp) to run for the cuda backend.
The cl_khr_fp64 extension is used for all cuda devices by default, since sm_XX wherer XX < 13 has been unsupported by the cuda driver since cuda 8.0.

Signed-off-by: JackAKirk <[email protected]>

Author: JackAKirk

sycl/plugins/cuda/pi_cuda.cpp

@@ -1371,7 +1371,11 @@ pi_result cuda_piDeviceGetInfo(pi_device device, pi_device_info param_name,
     return getInfo(param_value_size, param_value, param_value_size_ret, "");
   }
   case PI_DEVICE_INFO_EXTENSIONS: {
-    return getInfo(param_value_size, param_value, param_value_size_ret, "");
+
+    std::string SupportedExtensions = "cl_khr_fp64 ";
+
+    return getInfo(param_value_size, param_value, param_value_size_ret,
+                   SupportedExtensions.c_str());
   }
   case PI_DEVICE_INFO_PRINTF_BUFFER_SIZE: {
     // The minimum value for the FULL profile is 1 MB.