[Mlir-commits] [mlir] Reimplementing target description concept using DLTI attribute (PR #92138)

[Niranjan Hasabnis]

================
@@ -194,6 +194,162 @@ def DataLayoutSpecInterface : AttrInterface<"DataLayoutSpecInterface"> {
   }];
 }
 
+def TargetDeviceDescSpecInterface : AttrInterface<"TargetDeviceDescSpecInterface"> {
+  let cppNamespace = "::mlir";
+
+  let description = [{
+    Attribute interface describing a target device description specification.
+
+    A target device description specification is a list of device properties (key)
+    and their values for a specific device. The device is identified using "device_id"
----------------
nhasabni wrote:

Current implementation is based on a design that `device_id` is part of every `TargetDeviceDescSpec`. In other words, every device needs to have a `device_id` (because it is the property of a device). That way we can have a heterogeneous system, consisting of multiple devices. The `TargetSystemDescSpec` only mandates that the `device_id` for every device in the system is unique.

https://github.com/llvm/llvm-project/pull/92138