Make sure that we destroy the MBB's, with all of their instructions, before

any other data structures


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14524 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/MachineFunction.cpp

@@ -115,6 +115,7 @@ MachineFunction::MachineFunction(const Function *F,
 }
 
 MachineFunction::~MachineFunction() { 
+  BasicBlocks.clear();
   delete SSARegMapping;
   delete MFInfo;
   delete FrameInfo;