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From c86c43b70e029b102543e8a85d269cbeb5c00279 Mon Sep 17 00:00:00 2001
From: juanrod2 <>
Date: Tue, 22 Dec 2020 08:33:08 +0800
Subject: [PATCH] Memory leak fix for Managed Static Mutex
Upstream-Status: Backport [Taken from opencl-clang patches; https://github.com/intel/opencl-clang/blob/ocl-open-100/patches/llvm/0001-Memory-leak-fix-for-Managed-Static-Mutex.patch]
Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>
Cleaning a mutex inside ManagedStatic llvm class.
---
llvm/lib/Support/ManagedStatic.cpp | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/llvm/lib/Support/ManagedStatic.cpp b/llvm/lib/Support/ManagedStatic.cpp
index 053493f72fb5..6571580ccecf 100644
--- a/llvm/lib/Support/ManagedStatic.cpp
+++ b/llvm/lib/Support/ManagedStatic.cpp
@@ -76,8 +76,12 @@ void ManagedStaticBase::destroy() const {
/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
void llvm::llvm_shutdown() {
- std::lock_guard<std::recursive_mutex> Lock(*getManagedStaticMutex());
+ getManagedStaticMutex()->lock();
while (StaticList)
StaticList->destroy();
+
+ getManagedStaticMutex()->unlock();
+ delete ManagedStaticMutex;
+ ManagedStaticMutex = nullptr;
}
--
2.29.2
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