/// @brief Get the number of bits in this IntegerType
unsigned getBitWidth() const { return getSubclassData(); }
+ /// This method determines if the width of this IntegerType is a power-of-2
+ /// in terms of 8 bit bytes.
+ /// @returns true if this is a power-of-2 byte width.
+ /// @brief Is this a power-of-2 byte-width IntegerType ?
+ bool isPowerOf2ByteWidth() const;
+
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const IntegerType *T) { return true; }
static inline bool classof(const Type *T) {
return ITy;
}
+bool IntegerType::isPowerOf2ByteWidth() const {
+ unsigned BitWidth = getBitWidth();
+ return (BitWidth > 7 && Log2_32(BitWidth) == Log2_32_Ceil(BitWidth));
+}
+
// FunctionValType - Define a class to hold the key that goes into the TypeMap
//
namespace llvm {