};
public:
PointerIntPair() : Value(0) {}
- PointerIntPair(PointerTy Ptr, IntType Int) : Value(0) {
+ PointerIntPair(PointerTy Ptr, IntType Int) {
assert(IntBits <= PtrTraits::NumLowBitsAvailable &&
"PointerIntPair formed with integer size too large for pointer");
- setPointer(Ptr);
- setInt(Int);
+ setPointerAndInt(Ptr, Int);
+ }
+ explicit PointerIntPair(PointerTy Ptr) {
+ initWithPointer(Ptr);
}
PointerTy getPointer() const {
Value |= IntVal << IntShift; // Set new integer.
}
+ void initWithPointer(PointerTy Ptr) {
+ intptr_t PtrVal
+ = reinterpret_cast<intptr_t>(PtrTraits::getAsVoidPointer(Ptr));
+ assert((PtrVal & ((1 << PtrTraits::NumLowBitsAvailable)-1)) == 0 &&
+ "Pointer is not sufficiently aligned");
+ Value = PtrVal;
+ }
+
+ void setPointerAndInt(PointerTy Ptr, IntType Int) {
+ intptr_t PtrVal
+ = reinterpret_cast<intptr_t>(PtrTraits::getAsVoidPointer(Ptr));
+ assert((PtrVal & ((1 << PtrTraits::NumLowBitsAvailable)-1)) == 0 &&
+ "Pointer is not sufficiently aligned");
+ intptr_t IntVal = Int;
+ assert(IntVal < (1 << IntBits) && "Integer too large for field");
+
+ Value = PtrVal | (IntVal << IntShift);
+ }
+
PointerTy const *getAddrOfPointer() const {
return const_cast<PointerIntPair *>(this)->getAddrOfPointer();
}