1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h b/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h
index f0de2d023a1..a3d3d1fffdb 100644
--- a/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h
+++ b/llvm/unittests/ExecutionEngine/MCJIT/MCJITTestAPICommon.h
@@ -42,6 +42,10 @@ 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";