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Add the unwind instruction class

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llvm-svn: 8405
This commit is contained in:
Chris Lattner 2003-09-08 18:54:09 +00:00
parent 56bc7d4056
commit 3aeba4c6fc
1 changed files with 32 additions and 1 deletions
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33
include/llvm/iTerminators.h
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@ -61,7 +61,6 @@ public:
} }
}; };
//===--------------------------------------------------------------------------- //===---------------------------------------------------------------------------
// BranchInst - Conditional or Unconditional Branch instruction. // BranchInst - Conditional or Unconditional Branch instruction.
// //
@ -270,4 +269,36 @@ public:
} }
}; };
//===---------------------------------------------------------------------------
/// UnwindInst - Immediately exit the current function, unwinding the stack
/// until an invoke instruction is found.
///
struct UnwindInst : public TerminatorInst {
UnwindInst(Instruction *InsertBefore = 0)
: TerminatorInst(Instruction::Unwind, InsertBefore) {
}
virtual Instruction *clone() const { return new UnwindInst(); }
virtual const BasicBlock *getSuccessor(unsigned idx) const {
assert(0 && "UnwindInst has no successors!");
abort();
return 0;
}
virtual void setSuccessor(unsigned idx, BasicBlock *NewSucc) {
assert(0 && "UnwindInst has no successors!");
}
virtual unsigned getNumSuccessors() const { return 0; }
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const UnwindInst *) { return true; }
static inline bool classof(const Instruction *I) {
return I->getOpcode() == Instruction::Unwind;
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
}
};
#endif #endif