diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 33cf6b5..04c5910 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -135,7 +135,7 @@
   if (addPreEmitPass(PM, Fast) && PrintMachineCode)
     PM.add(createMachineFunctionPrinterPass(cerr));
 
-  if (AlignLoops)
+  if (AlignLoops && !OptimizeForSize)
     PM.add(createLoopAlignerPass());
 
   switch (FileType) {