[llvm] [OFFLOAD] Add plugin with support for Intel oneAPI Level Zero (PR #158900)

[Joseph Huber via llvm-commits]

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@@ -0,0 +1,55 @@
+//===--- Level Zero Target RTL Implementation -----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Async Queue wrapper for Level Zero
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
+#define OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
+
+#include <list>
+#include <tuple>
+#include <vector>
+
+#include "L0Memory.h"
+
+namespace llvm {
+namespace omp {
+namespace target {
+namespace plugin {
+
+/// Abstract queue that supports asynchronous command submission
+struct AsyncQueueTy {
+  /// List of events attahced to submitted commands
+  std::vector<ze_event_handle_t> WaitEvents;
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jhuber6 wrote:

We should use the LLVM ADT types where possible.

https://github.com/llvm/llvm-project/pull/158900