dead code removing: make jumps always useful

sapfor/experts/Sapfor_2017/_src/Transformations/dead_code.cpp

@@ -63,6 +63,8 @@ static void updateUseDefForInstruction(SAPFOR::BasicBlock* block, SAPFOR::Instru
             SAPFOR::CFG_OP::EXIT,
             SAPFOR::CFG_OP::DVM_DIR,
             SAPFOR::CFG_OP::SPF_DIR,
+            SAPFOR::CFG_OP::JUMP,
+            SAPFOR::CFG_OP::JUMP_IF,
 
             SAPFOR::CFG_OP::F_CALL //TODO: handle pure functions
         };