void initializeFlattenCFGPassPass(PassRegistry&);
void initializeStructurizeCFGPass(PassRegistry&);
void initializeCFGViewerPass(PassRegistry&);
-void initializeConstantHoistingPass(PassRegistry&);
void initializeCodeGenPreparePass(PassRegistry&);
void initializeConstantMergePass(PassRegistry&);
void initializeConstantPropagationPass(PassRegistry&);