Instruction *InsertBefore = 0 ///< Place to insert the instruction
);
+ /// @brief Create a BitCast, a PtrToInt, or an IntToPTr cast instruction.
+ ///
+ /// If the value is a pointer type and the destination an integer type,
+ /// creates a PtrToInt cast. If the value is an integer type and the
+ /// destination a pointer type, creates an IntToPtr cast. Otherwise, creates
+ /// a bitcast.
+ static CastInst *CreateBitOrPointerCast(
+ Value *S, ///< The pointer value to be casted (operand 0)
+ Type *Ty, ///< The type to which cast should be made
+ const Twine &Name = "", ///< Name for the instruction
+ Instruction *InsertBefore = 0 ///< Place to insert the instruction
+ );
+
/// @brief Create a ZExt, BitCast, or Trunc for int -> int casts.
static CastInst *CreateIntegerCast(
Value *S, ///< The pointer value to be casted (operand 0)
Type *DestTy ///< The Type to which the value should be cast.
);
+ /// @brief Check whether a bitcast, inttoptr, or ptrtoint cast between these
+ /// types is valid and a no-op.
+ ///
+ /// This ensures that any pointer<->integer cast has enough bits in the
+ /// integer and any other cast is a bitcast.
+ static bool isBitOrNoopPointerCastable(
+ Type *SrcTy, ///< The Type from which the value should be cast.
+ Type *DestTy, ///< The Type to which the value should be cast.
+ const DataLayout *Layout = 0 ///< Optional DataLayout.
+ );
+
/// Returns the opcode necessary to cast Val into Ty using usual casting
/// rules.
/// @brief Infer the opcode for cast operand and type