NumLowBitsAvailable = PT1BitsAv < PT2BitsAv ? PT1BitsAv : PT2BitsAv
};
};
-
+
/// PointerUnion - This implements a discriminated union of two pointer types,
/// and keeps the discriminator bit-mangled into the low bits of the pointer.
/// This allows the implementation to be extremely efficient in space, but
template <typename PT1, typename PT2>
class PointerUnion {
public:
- typedef PointerIntPair<void*, 1, bool,
+ typedef PointerIntPair<void*, 1, bool,
PointerUnionUIntTraits<PT1,PT2> > ValTy;
private:
ValTy Val;
public:
PointerUnion() {}
-
+
PointerUnion(PT1 V) : Val(
const_cast<void *>(PointerLikeTypeTraits<PT1>::getAsVoidPointer(V))) {
}
PointerUnion(PT2 V) : Val(
const_cast<void *>(PointerLikeTypeTraits<PT2>::getAsVoidPointer(V)), 1) {
}
-
+
/// isNull - Return true if the pointer held in the union is null,
/// regardless of which type it is.
bool isNull() const {
// we recursively strip off low bits if we have a nested PointerUnion.
return !PointerLikeTypeTraits<PT1>::getFromVoidPointer(Val.getPointer());
}
- LLVM_EXPLICIT operator bool() const { return !isNull(); }
+ explicit operator bool() const { return !isNull(); }
/// is<T>() return true if the Union currently holds the type matching T.
template<typename T>
int TyNo = Ty::Num;
return static_cast<int>(Val.getInt()) == TyNo;
}
-
+
/// get<T>() - Return the value of the specified pointer type. If the
/// specified pointer type is incorrect, assert.
template<typename T>
assert(is<T>() && "Invalid accessor called");
return PointerLikeTypeTraits<T>::getFromVoidPointer(Val.getPointer());
}
-
+
/// dyn_cast<T>() - If the current value is of the specified pointer type,
/// return it, otherwise return null.
template<typename T>
Val.initWithPointer(nullptr);
return *this;
}
-
+
/// Assignment operators - Allow assigning into this union from either
/// pointer type, setting the discriminator to remember what it came from.
const PointerUnion &operator=(const PT1 &RHS) {
1);
return *this;
}
-
+
void *getOpaqueValue() const { return Val.getOpaqueValue(); }
static inline PointerUnion getFromOpaqueValue(void *VP) {
PointerUnion V;
getFromVoidPointer(void *P) {
return PointerUnion<PT1, PT2>::getFromOpaqueValue(P);
}
-
+
// The number of bits available are the min of the two pointer types.
enum {
- NumLowBitsAvailable =
+ NumLowBitsAvailable =
PointerLikeTypeTraits<typename PointerUnion<PT1,PT2>::ValTy>
::NumLowBitsAvailable
};
};
-
-
+
+
/// PointerUnion3 - This is a pointer union of three pointer types. See
/// documentation for PointerUnion for usage.
template <typename PT1, typename PT2, typename PT3>
IsInnerUnion(ValTy val) : Val(val) { }
template<typename T>
int is() const {
- return Val.template is<InnerUnion>() &&
+ return Val.template is<InnerUnion>() &&
Val.template get<InnerUnion>().template is<T>();
}
template<typename T>
public:
PointerUnion3() {}
-
+
PointerUnion3(PT1 V) {
Val = InnerUnion(V);
}
PointerUnion3(PT3 V) {
Val = V;
}
-
+
/// isNull - Return true if the pointer held in the union is null,
/// regardless of which type it is.
bool isNull() const { return Val.isNull(); }
- LLVM_EXPLICIT operator bool() const { return !isNull(); }
-
+ explicit operator bool() const { return !isNull(); }
+
/// is<T>() return true if the Union currently holds the type matching T.
template<typename T>
int is() const {
>::Return Ty;
return Ty(Val).template is<T>();
}
-
+
/// get<T>() - Return the value of the specified pointer type. If the
/// specified pointer type is incorrect, assert.
template<typename T>
>::Return Ty;
return Ty(Val).template get<T>();
}
-
+
/// dyn_cast<T>() - If the current value is of the specified pointer type,
/// return it, otherwise return null.
template<typename T>
Val = nullptr;
return *this;
}
-
+
/// Assignment operators - Allow assigning into this union from either
/// pointer type, setting the discriminator to remember what it came from.
const PointerUnion3 &operator=(const PT1 &RHS) {
Val = RHS;
return *this;
}
-
+
void *getOpaqueValue() const { return Val.getOpaqueValue(); }
static inline PointerUnion3 getFromOpaqueValue(void *VP) {
PointerUnion3 V;
return V;
}
};
-
+
// Teach SmallPtrSet that PointerUnion3 is "basically a pointer", that has
// # low bits available = min(PT1bits,PT2bits,PT2bits)-2.
template<typename PT1, typename PT2, typename PT3>
getFromVoidPointer(void *P) {
return PointerUnion3<PT1, PT2, PT3>::getFromOpaqueValue(P);
}
-
+
// The number of bits available are the min of the two pointer types.
enum {
- NumLowBitsAvailable =
+ NumLowBitsAvailable =
PointerLikeTypeTraits<typename PointerUnion3<PT1, PT2, PT3>::ValTy>
::NumLowBitsAvailable
};
ValTy Val;
public:
PointerUnion4() {}
-
+
PointerUnion4(PT1 V) {
Val = InnerUnion1(V);
}
PointerUnion4(PT4 V) {
Val = InnerUnion2(V);
}
-
+
/// isNull - Return true if the pointer held in the union is null,
/// regardless of which type it is.
bool isNull() const { return Val.isNull(); }
- LLVM_EXPLICIT operator bool() const { return !isNull(); }
-
+ explicit operator bool() const { return !isNull(); }
+
/// is<T>() return true if the Union currently holds the type matching T.
template<typename T>
int is() const {
::llvm::PointerUnionTypeSelector<PT1, T, InnerUnion1,
::llvm::PointerUnionTypeSelector<PT2, T, InnerUnion1, InnerUnion2 >
>::Return Ty;
- return Val.template is<Ty>() &&
+ return Val.template is<Ty>() &&
Val.template get<Ty>().template is<T>();
}
-
+
/// get<T>() - Return the value of the specified pointer type. If the
/// specified pointer type is incorrect, assert.
template<typename T>
>::Return Ty;
return Val.template get<Ty>().template get<T>();
}
-
+
/// dyn_cast<T>() - If the current value is of the specified pointer type,
/// return it, otherwise return null.
template<typename T>
Val = nullptr;
return *this;
}
-
+
/// Assignment operators - Allow assigning into this union from either
/// pointer type, setting the discriminator to remember what it came from.
const PointerUnion4 &operator=(const PT1 &RHS) {
Val = InnerUnion2(RHS);
return *this;
}
-
+
void *getOpaqueValue() const { return Val.getOpaqueValue(); }
static inline PointerUnion4 getFromOpaqueValue(void *VP) {
PointerUnion4 V;
return V;
}
};
-
+
// Teach SmallPtrSet that PointerUnion4 is "basically a pointer", that has
// # low bits available = min(PT1bits,PT2bits,PT2bits)-2.
template<typename PT1, typename PT2, typename PT3, typename PT4>
getFromVoidPointer(void *P) {
return PointerUnion4<PT1, PT2, PT3, PT4>::getFromOpaqueValue(P);
}
-
+
// The number of bits available are the min of the two pointer types.
enum {
- NumLowBitsAvailable =
+ NumLowBitsAvailable =
PointerLikeTypeTraits<typename PointerUnion4<PT1, PT2, PT3, PT4>::ValTy>
::NumLowBitsAvailable
};
projects / oota-llvm.git / commitdiff