#ifndef LLVM_BASICBLOCK_H
#define LLVM_BASICBLOCK_H
-#include "llvm/Instruction.h"
-#include "llvm/SymbolTableListTraits.h"
-#include "llvm/ADT/ilist.h"
#include "llvm/ADT/Twine.h"
+#include "llvm/ADT/ilist.h"
+#include "llvm/Instruction.h"
#include "llvm/Support/DataTypes.h"
+#include "llvm/SymbolTableListTraits.h"
namespace llvm {
+class LandingPadInst;
class TerminatorInst;
class LLVMContext;
class BlockAddress;
void setParent(Function *parent);
friend class SymbolTableListTraits<BasicBlock, Function>;
- BasicBlock(const BasicBlock &); // Do not implement
- void operator=(const BasicBlock &); // Do not implement
+ BasicBlock(const BasicBlock &) LLVM_DELETED_FUNCTION;
+ void operator=(const BasicBlock &) LLVM_DELETED_FUNCTION;
/// BasicBlock ctor - If the function parameter is specified, the basic block
/// is automatically inserted at either the end of the function (if
LLVMContext &getContext() const;
/// Instruction iterators...
- typedef InstListType::iterator iterator;
- typedef InstListType::const_iterator const_iterator;
+ typedef InstListType::iterator iterator;
+ typedef InstListType::const_iterator const_iterator;
+ typedef InstListType::reverse_iterator reverse_iterator;
+ typedef InstListType::const_reverse_iterator const_reverse_iterator;
/// Create - Creates a new BasicBlock. If the Parent parameter is specified,
/// the basic block is automatically inserted at either the end of the
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();
}
+ // 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.
///
inline iterator end () { return InstList.end(); }
inline const_iterator end () const { return InstList.end(); }
+ inline reverse_iterator rbegin() { return InstList.rbegin(); }
+ inline const_reverse_iterator rbegin() const { return InstList.rbegin(); }
+ inline reverse_iterator rend () { return InstList.rend(); }
+ inline const_reverse_iterator rend () const { return InstList.rend(); }
+
inline size_t size() const { return InstList.size(); }
inline bool empty() const { return InstList.empty(); }
inline const Instruction &front() const { return InstList.front(); }
ValueSymbolTable *getValueSymbolTable();
/// Methods for support type inquiry through isa, cast, and dyn_cast:
- static inline bool classof(const BasicBlock *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueID() == Value::BasicBlockVal;
}
/// 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();
+ const LandingPadInst *getLandingPadInst() const;
+
private:
/// AdjustBlockAddressRefCount - BasicBlock stores the number of BlockAddress
/// objects using it. This is almost always 0, sometimes one, possibly but