namespace llvm {
+class LandingPadInst;
class TerminatorInst;
class LLVMContext;
class BlockAddress;
private:
InstListType InstList;
Function *Parent;
- bool IsLandingPad;
void setParent(Function *parent);
friend class SymbolTableListTraits<BasicBlock, Function>;
const Function *getParent() const { return Parent; }
Function *getParent() { return Parent; }
- /// use_back - Specialize the methods defined in Value, as we know that an
- /// BasicBlock can only be used by Users (specifically PHI nodes, terminators,
- /// and BlockAddress's).
- User *use_back() { return cast<User>(*use_begin());}
- const User *use_back() const { return cast<User>(*use_begin());}
-
/// getTerminator() - If this is a well formed basic block, then this returns
/// a pointer to the terminator instruction. If it is not, then you get a
/// null pointer back.
return const_cast<BasicBlock*>(this)->getFirstNonPHIOrDbg();
}
- /// isLandingPad - True if this basic block is a landing pad for exception
- /// handling.
- bool isLandingPad() const { return IsLandingPad; }
- void setIsLandingPad(bool Val = true) { IsLandingPad = Val; }
+ // Same as above, but also skip lifetime intrinsics.
+ Instruction* getFirstNonPHIOrDbgOrLifetime();
+ const Instruction* getFirstNonPHIOrDbgOrLifetime() const {
+ return const_cast<BasicBlock*>(this)->getFirstNonPHIOrDbgOrLifetime();
+ }
+
+ /// getFirstInsertionPt - Returns an iterator to the first instruction in this
+ /// block that is suitable for inserting a non-PHI instruction. In particular,
+ /// it skips all PHIs and LandingPad instructions.
+ iterator getFirstInsertionPt();
+ const_iterator getFirstInsertionPt() const {
+ return const_cast<BasicBlock*>(this)->getFirstInsertionPt();
+ }
/// removeFromParent - This method unlinks 'this' from the containing
/// function, but does not delete it.
/// other than direct branches, switches, etc. to it.
bool hasAddressTaken() const { return getSubclassDataFromValue() != 0; }
+ /// replaceSuccessorsPhiUsesWith - Update all phi nodes in all our successors
+ /// to refer to basic block New instead of to us.
+ void replaceSuccessorsPhiUsesWith(BasicBlock *New);
+
+ /// isLandingPad - Return true if this basic block is a landing pad. I.e.,
+ /// it's the destination of the 'unwind' edge of an invoke instruction.
+ bool isLandingPad() const;
+
+ /// getLandingPadInst() - Return the landingpad instruction associated with
+ /// the landing pad.
+ LandingPadInst *getLandingPadInst();
+
private:
/// AdjustBlockAddressRefCount - BasicBlock stores the number of BlockAddress
/// objects using it. This is almost always 0, sometimes one, possibly but