diff --git a/llvm/include/llvm/Support/DynamicLibrary.h b/llvm/include/llvm/Support/DynamicLibrary.h
--- a/llvm/include/llvm/Support/DynamicLibrary.h
+++ b/llvm/include/llvm/Support/DynamicLibrary.h
@@ -123,6 +123,10 @@
     /// Add searchable symbol/value pair.
     static void AddSymbol(StringRef symbolName, void *symbolValue);
 
+    /// Ensure the underlying library registry is properly constructed.
+    /// This is only useful to force ManagedStatic registration ordering.
+    static void ensureConstructed();
+
     class HandleSet;
   };
 
diff --git a/llvm/lib/Support/DynamicLibrary.cpp b/llvm/lib/Support/DynamicLibrary.cpp
--- a/llvm/lib/Support/DynamicLibrary.cpp
+++ b/llvm/lib/Support/DynamicLibrary.cpp
@@ -145,6 +145,8 @@
   (*ExplicitSymbols)[SymbolName] = SymbolValue;
 }
 
+void DynamicLibrary::ensureConstructed() { (void)*OpenedHandles; }
+
 DynamicLibrary DynamicLibrary::getPermanentLibrary(const char *FileName,
                                                    std::string *Err) {
   // Force OpenedHandles to be added into the ManagedStatic list before any
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
--- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -27,6 +27,7 @@
 #include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Verifier.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/DynamicLibrary.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Transforms/AggressiveInstCombine/AggressiveInstCombine.h"
 #include "llvm/Transforms/IPO.h"
@@ -194,12 +195,20 @@
 /// Since GlobalExtensions is a managed static, calling 'empty()' will trigger
 /// the construction of the object.
 static bool GlobalExtensionsNotEmpty() {
+  // Dynamic library static registry **must** be initialized before global
+  // extension registry, because global extension may reference functions from
+  // dynamically opened libraries. Failing to ensure that order (randomly)
+  // triggers a segfault upon destruction, if the dynamically loaded library is
+  // closed before the global extensions are destroyed.
+  sys::DynamicLibrary::ensureConstructed();
   return GlobalExtensions.isConstructed() && !GlobalExtensions->empty();
 }
 
 void PassManagerBuilder::addGlobalExtension(
     PassManagerBuilder::ExtensionPointTy Ty,
     PassManagerBuilder::ExtensionFn Fn) {
+  // See comment in GlobalExtensionsNotEmpty
+  sys::DynamicLibrary::ensureConstructed();
   GlobalExtensions->push_back(std::make_pair(Ty, std::move(Fn)));
 }
 
diff --git a/llvm/test/Feature/load_extension.ll b/llvm/test/Feature/load_extension.ll
--- a/llvm/test/Feature/load_extension.ll
+++ b/llvm/test/Feature/load_extension.ll
@@ -1,8 +1,5 @@
-; This is currently failing on multiple platforms. Disable while investigation occurs.
-; XFAIL: *
-
 ; RUN: opt %s %loadbye -goodbye -wave-goodbye -disable-output 2>&1 | FileCheck %s
-; REQUIRES: plugins, examples
+; REQUIRES: plugins
 ; CHECK: Bye
 
 @junk = global i32 0