When doing "opt -O2" verify the bitcode like is done for
"opt -std-compile-opts".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146036 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index fe73462..5161364 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -407,6 +407,8 @@
 /// OptLevel - Optimization Level
 static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
                                   unsigned OptLevel) {
+  FPM.add(createVerifierPass());                  // Verify that input is correct
+
   PassManagerBuilder Builder;
   Builder.OptLevel = OptLevel;