1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h b/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h
index 7d704def461..21def6e9eb1 100644
--- a/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h
+++ b/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h
@@ -17,6 +17,8 @@
 
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Triple.h"
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/InitializePasses.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/TargetSelect.h"
 
@@ -39,6 +41,10 @@ protected:
     InitializeNativeTarget();
     InitializeNativeTargetAsmPrinter();
 
+    // FIXME: It isn't at all clear why this is necesasry, but without it we
+    // fail to initialize the AssumptionCacheTracker.
+    initializeAssumptionCacheTrackerPass(*PassRegistry::getPassRegistry());
+
 #ifdef LLVM_ON_WIN32
     // On Windows, generate ELF objects by specifying "-elf" in triple
     HostTriple += "-elf";