/// don't have to worry about the lifetime of the objects.
/// @brief LLVM Constant Representation
class Constant : public User {
- void operator=(const Constant &); // Do not implement
- Constant(const Constant &); // Do not implement
+ void operator=(const Constant &) LLVM_DELETED_FUNCTION;
+ Constant(const Constant &) LLVM_DELETED_FUNCTION;
virtual void anchor();
protected:
/// 'this' is a constant expr.
Constant *getAggregateElement(unsigned Elt) const;
Constant *getAggregateElement(Constant *Elt) const;
-
+
+ /// getSplatValue - If this is a splat vector constant, meaning that all of
+ /// the elements have the same value, return that value. Otherwise return 0.
+ Constant *getSplatValue() const;
+
+ /// If C is a constant integer then return its value, otherwise C must be a
+ /// vector of constant integers, all equal, and the common value is returned.
+ const APInt &getUniqueInteger() 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
/// 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; }
- static inline bool classof(const GlobalValue *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueID() >= ConstantFirstVal &&
V->getValueID() <= ConstantLastVal;
// 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.
+
+ /// @returns the value for an integer or vector of integer constant of the
+ /// given type that has all its bits set to true.
/// @brief Get the all ones value
static Constant *getAllOnesValue(Type* Ty);