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Hi Jeff, > Under what circumstances will a TerminatorInst will have multiple successors? for example when it is a condition branch (two successors), an invoke (also two successors) or a switch (maybe many successors). Ciao, Duncan.

Under what circumstances will a TerminatorInst will have multiple successors? The three methods: virtual BasicBlock *getSuccessorV(unsigned idx) const = 0; virtual unsigned getNumSuccessorsV() const = 0; virtual void setSuccessorV(unsigned idx, BasicBlock *B) = 0; are defined for the TerminatorInst class, but I cannot see why a terminator is allowed to go to different targets. Thanks,