[clang] [llvm] [Driver][SYCL] Add initial SYCL offload compilation support (PR #107493)

[Tom Honermann via cfe-commits]

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@@ -979,6 +1000,44 @@ void Driver::CreateOffloadingDeviceToolChains(Compilation &C,
     return;
   }
 
+  //
+  // SYCL
+  //
+  // We need to generate a SYCL toolchain if the user specified -fsycl.
+  // If -fsycl is supplied we will assume SPIR-V.
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tahonermann wrote:

This comment is repeated below where it appears to be more relevant to the surrounding code. I recommend removing this one.
```suggestion
```

https://github.com/llvm/llvm-project/pull/107493