From 4b6eb0e63c698094db5506763df44cc83c19f643 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 20 Mar 2022 12:40:34 +0100
Subject: Merge llvm-project main llvmorg-14-init-10186-gff7f2cfa959b

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-14-init-10186-gff7f2cfa959b.

PR:		261742
MFC after:	2 weeks

(cherry picked from commit 349cc55c9796c4596a5b9904cd3281af295f878f)
---
 .../llvm/lib/ExecutionEngine/Orc/TaskDispatch.cpp  | 48 ++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/TaskDispatch.cpp

(limited to 'contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/TaskDispatch.cpp')

diff --git a/contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/TaskDispatch.cpp b/contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/TaskDispatch.cpp
new file mode 100644
index 000000000000..111c84ec87ed
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/ExecutionEngine/Orc/TaskDispatch.cpp
@@ -0,0 +1,48 @@
+//===------------ TaskDispatch.cpp - ORC task dispatch utils --------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ExecutionEngine/Orc/TaskDispatch.h"
+
+namespace llvm {
+namespace orc {
+
+char Task::ID = 0;
+char GenericNamedTask::ID = 0;
+const char *GenericNamedTask::DefaultDescription = "Generic Task";
+
+void Task::anchor() {}
+TaskDispatcher::~TaskDispatcher() {}
+
+void InPlaceTaskDispatcher::dispatch(std::unique_ptr<Task> T) { T->run(); }
+
+void InPlaceTaskDispatcher::shutdown() {}
+
+#if LLVM_ENABLE_THREADS
+void DynamicThreadPoolTaskDispatcher::dispatch(std::unique_ptr<Task> T) {
+  {
+    std::lock_guard<std::mutex> Lock(DispatchMutex);
+    ++Outstanding;
+  }
+
+  std::thread([this, T = std::move(T)]() mutable {
+    T->run();
+    std::lock_guard<std::mutex> Lock(DispatchMutex);
+    --Outstanding;
+    OutstandingCV.notify_all();
+  }).detach();
+}
+
+void DynamicThreadPoolTaskDispatcher::shutdown() {
+  std::unique_lock<std::mutex> Lock(DispatchMutex);
+  Running = false;
+  OutstandingCV.wait(Lock, [this]() { return Outstanding == 0; });
+}
+#endif
+
+} // namespace orc
+} // namespace llvm
-- 
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