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Added methods to make dealing with switches and branch instructions

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more tolerable.

llvm-svn: 84
This commit is contained in:
Chris Lattner 2001-06-27 23:29:41 +00:00
parent c112b3de44
commit 608fe88627
1 changed files with 22 additions and 1 deletions
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23
llvm/include/llvm/iTerminators.h
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@ -70,7 +70,10 @@ public:
virtual Instruction *clone() const { return new BranchInst(*this); }
virtual void dropAllReferences();
inline const Value *getCondition() const { return Condition; }
inline Value *getCondition() { return Condition; }
inline bool isUnconditional() const {
return Condition == 0 || !FalseDest;
}
@ -83,6 +86,9 @@ public:
virtual const Value *getOperand(unsigned i) const;
virtual bool setOperand(unsigned i, Value *Val);
virtual unsigned getNumOperands() const { return isUnconditional() ? 1 : 3; }
inline BasicBlock *getSuccessor(unsigned idx) {
return (BasicBlock*)((const BranchInst *)this)->getSuccessor(idx);
}
// Additionally, they must provide a method to get at the successors of this
// terminator instruction. If 'idx' is out of range, a null pointer shall be
@ -114,6 +120,18 @@ public:
virtual Instruction *clone() const { return new SwitchInst(*this); }
// Accessor Methods for Switch stmt
//
inline dest_iterator dest_begin() { return Destinations.begin(); }
inline dest_iterator dest_end () { return Destinations.end(); }
inline dest_const_iterator dest_begin() const { return Destinations.begin(); }
inline dest_const_iterator dest_end () const { return Destinations.end(); }
inline const Value *getCondition() const { return Val; }
inline Value *getCondition() { return Val; }
inline const BasicBlock *getDefaultDest() const { return DefaultDest; }
inline BasicBlock *getDefaultDest() { return DefaultDest; }
void dest_push_back(ConstPoolVal *OnVal, BasicBlock *Dest);
virtual string getOpcode() const { return "switch"; }
@ -131,6 +149,9 @@ public:
//
virtual const BasicBlock *getSuccessor(unsigned idx) const;
virtual unsigned getNumSuccessors() const { return 1+Destinations.size(); }
inline BasicBlock *getSuccessor(unsigned idx) {
return (BasicBlock*)((const SwitchInst *)this)->getSuccessor(idx);
}
};
#endif