diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 9d0837c29d7..74c30d12004 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -50,6 +50,9 @@ PrintEachXForm("p", cl::desc("Print module after each transformation"));
 static cl::opt<bool>
 NoOutput("no-output", cl::desc("Do not write result bytecode file"), cl::Hidden);
 
+static cl::opt<bool>
+NoVerify("no-verify", cl::desc("Do not verify result module"), cl::Hidden);
+
 static cl::opt<bool>
 Quiet("q", cl::desc("Don't print 'program modified' message"));
 
@@ -128,7 +131,8 @@ int main(int argc, char **argv) {
   }
 
   // Check that the module is well formed on completion of optimization
-  Passes.add(createVerifierPass());
+  if (!NoVerify)
+    Passes.add(createVerifierPass());
 
   // Write bytecode out to disk or cout as the last step...
   if (!NoOutput)