1 files changed, 2 insertions, 3 deletions
diff --git a/clang/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp
index ee71b55a39e6..f4e9a67438e7 100644
--- a/clang/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/PthreadLockChecker.cpp
@@ -21,6 +21,7 @@
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
 #include "clang/StaticAnalyzer/Core/Checker.h"
 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/CallDescription.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
 
@@ -681,9 +682,7 @@ ProgramStateRef PthreadLockChecker::checkRegionChanges(
     // We assume that system library function wouldn't touch the mutex unless
     // it takes the mutex explicitly as an argument.
     // FIXME: This is a bit quadratic.
-    if (IsLibraryFunction &&
-        std::find(ExplicitRegions.begin(), ExplicitRegions.end(), R) ==
-            ExplicitRegions.end())
+    if (IsLibraryFunction && !llvm::is_contained(ExplicitRegions, R))
       continue;
 
     State = State->remove<LockMap>(R);