diff options
Diffstat (limited to 'include/llvm/Constant.h')
| -rw-r--r-- | include/llvm/Constant.h | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/include/llvm/Constant.h b/include/llvm/Constant.h index ecc1fe7..13acdc6 100644 --- a/include/llvm/Constant.h +++ b/include/llvm/Constant.h @@ -41,6 +41,7 @@ namespace llvm { class Constant : public User { void operator=(const Constant &); // Do not implement Constant(const Constant &); // Do not implement + virtual void anchor(); protected: Constant(Type *ty, ValueTy vty, Use *Ops, unsigned NumOps) @@ -90,12 +91,13 @@ public: /// FIXME: This really should not be in VMCore. PossibleRelocationsTy getRelocationInfo() const; - /// getVectorElements - This method, which is only valid on constant of vector - /// type, returns the elements of the vector in the specified smallvector. - /// This handles breaking down a vector undef into undef elements, etc. For - /// constant exprs and other cases we can't handle, we return an empty vector. - void getVectorElements(SmallVectorImpl<Constant*> &Elts) const; - + /// getAggregateElement - For aggregates (struct/array/vector) return the + /// constant that corresponds to the specified element if possible, or null if + /// not. This can return null if the element index is a ConstantExpr, or if + /// 'this' is a constant expr. + Constant *getAggregateElement(unsigned Elt) const; + Constant *getAggregateElement(Constant *Elt) const; + /// destroyConstant - Called if some element of this constant is no longer /// valid. At this point only other constants may be on the use_list for this /// constant. Any constants on our Use list must also be destroy'd. The @@ -103,7 +105,7 @@ public: /// available cached constants. Implementations should call /// destroyConstantImpl as the last thing they do, to destroy all users and /// delete this. - virtual void destroyConstant() { assert(0 && "Not reached!"); } + virtual void destroyConstant() { llvm_unreachable("Not reached!"); } //// Methods for support type inquiry through isa, cast, and dyn_cast: static inline bool classof(const Constant *) { return true; } @@ -129,11 +131,12 @@ public: // to be here to avoid link errors. assert(getNumOperands() == 0 && "replaceUsesOfWithOnConstant must be " "implemented for all constants that have operands!"); - assert(0 && "Constants that do not have operands cannot be using 'From'!"); + llvm_unreachable("Constants that do not have operands cannot be using " + "'From'!"); } - + static Constant *getNullValue(Type* Ty); - + /// @returns the value for an integer constant of the given type that has all /// its bits set to true. /// @brief Get the all ones value |
