[SYCL] Formatting update for device_selector.cpp

Signed-off-by: Alexander Johnston <[email protected]>

Author: Alexander Johnston

sycl/source/device_selector.cpp

@@ -34,18 +34,21 @@ int default_selector::operator()(const device &dev) const {
 
   // Take note of the SYCL_BE environment variable when doing default selection
   const char *SYCL_BE = std::getenv("SYCL_BE");
-  std::string backend = (SYCL_BE ? SYCL_BE : "");
-  if (backend != "") {
+  if (SYCL_BE) {
+    std::string backend = (SYCL_BE ? SYCL_BE : "");
     // Taking the version information from the platform gives us more useful
     // information than the driver_version of the device.
     const platform Platform = dev.get_info<info::device::platform>();
-    const std::string PlatformVersion = Platform.get_info<info::platform::version>();
+    const std::string PlatformVersion =
+        Platform.get_info<info::platform::version>();;
     // If using PI_CUDA, don't accept a non-CUDA device
-    if (PlatformVersion.find("CUDA") == std::string::npos && backend == "PI_CUDA") {
+    if (PlatformVersion.find("CUDA") == std::string::npos &&
+        backend == "PI_CUDA") {
       return -1;
     }
     // If using PI_OPENCL, don't accept a non-OpenCL device
-    if (PlatformVersion.find("OpenCL") == std::string::npos && backend == "PI_OPENCL") {
+    if (PlatformVersion.find("OpenCL") == std::string::npos &&
+        backend == "PI_OPENCL") {
       return -1;
     }
   }