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

tools/opt/opt.cpp

@@ -407,6 +407,8 @@ static inline void addPass(PassManagerBase &PM, Pass *P) {
 /// 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;