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-rw-r--r--contrib/llvm/lib/Support/ManagedStatic.cpp84
1 files changed, 0 insertions, 84 deletions
diff --git a/contrib/llvm/lib/Support/ManagedStatic.cpp b/contrib/llvm/lib/Support/ManagedStatic.cpp
deleted file mode 100644
index 28ceb1a70e42..000000000000
--- a/contrib/llvm/lib/Support/ManagedStatic.cpp
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@@ -1,84 +0,0 @@
-//===-- ManagedStatic.cpp - Static Global wrapper -------------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the ManagedStatic class and llvm_shutdown().
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Config/config.h"
-#include "llvm/Support/Mutex.h"
-#include "llvm/Support/MutexGuard.h"
-#include "llvm/Support/Threading.h"
-#include <cassert>
-using namespace llvm;
-
-static const ManagedStaticBase *StaticList = nullptr;
-static sys::Mutex *ManagedStaticMutex = nullptr;
-static llvm::once_flag mutex_init_flag;
-
-static void initializeMutex() {
- ManagedStaticMutex = new sys::Mutex();
-}
-
-static sys::Mutex* getManagedStaticMutex() {
- llvm::call_once(mutex_init_flag, initializeMutex);
- return ManagedStaticMutex;
-}
-
-void ManagedStaticBase::RegisterManagedStatic(void *(*Creator)(),
- void (*Deleter)(void*)) const {
- assert(Creator);
- if (llvm_is_multithreaded()) {
- MutexGuard Lock(*getManagedStaticMutex());
-
- if (!Ptr.load(std::memory_order_relaxed)) {
- void *Tmp = Creator();
-
- Ptr.store(Tmp, std::memory_order_release);
- DeleterFn = Deleter;
-
- // Add to list of managed statics.
- Next = StaticList;
- StaticList = this;
- }
- } else {
- assert(!Ptr && !DeleterFn && !Next &&
- "Partially initialized ManagedStatic!?");
- Ptr = Creator();
- DeleterFn = Deleter;
-
- // Add to list of managed statics.
- Next = StaticList;
- StaticList = this;
- }
-}
-
-void ManagedStaticBase::destroy() const {
- assert(DeleterFn && "ManagedStatic not initialized correctly!");
- assert(StaticList == this &&
- "Not destroyed in reverse order of construction?");
- // Unlink from list.
- StaticList = Next;
- Next = nullptr;
-
- // Destroy memory.
- DeleterFn(Ptr);
-
- // Cleanup.
- Ptr = nullptr;
- DeleterFn = nullptr;
-}
-
-/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
-void llvm::llvm_shutdown() {
- MutexGuard Lock(*getManagedStaticMutex());
-
- while (StaticList)
- StaticList->destroy();
-}