[llvm] [OFFLOAD] Add support for host offloading device (PR #171010)

[Alex Duran via llvm-commits]

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@@ -131,3 +131,12 @@ def olGetDeviceInfoSize : Function {
     Return<"OL_ERRC_INVALID_DEVICE">
   ];
 }
+
+def olGetHostDevice : Function {
+  let desc = "Returns the host device.";
+  let details = [];
+  let params = [
+    Param<"ol_device_handle_t*", "Device", "handle of the device instance", PARAM_OUT>,
+  ];
+  let returns = [];
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adurang wrote:

I suppose it depends why you mean by host... obviously there's always non-offload host, but there doesn't necesarily need to be a host-device (e.g., the plugin might not be enabled)

https://github.com/llvm/llvm-project/pull/171010