///
class ConstantRange {
APInt Lower, Upper;
- static ConstantRange intersect1Wrapped(const ConstantRange &LHS,
- const ConstantRange &RHS);
public:
/// Initialize a full (the default) or empty set for the specified bit width.
///
bool isWrappedSet() const;
+ /// isSignWrappedSet - Return true if this set wraps around the INT_MIN of
+ /// its bitwidth, for example: i8 [120, 140).
+ ///
+ bool isSignWrappedSet() const;
+
/// contains - Return true if the specified value is in the set.
///
bool contains(const APInt &Val) const;
ConstantRange sextOrTrunc(uint32_t BitWidth) const;
/// add - Return a new range representing the possible values resulting
- /// from an addition of a value in this range and a value in Other.
+ /// from an addition of a value in this range and a value in \p Other.
ConstantRange add(const ConstantRange &Other) const;
+ /// sub - Return a new range representing the possible values resulting
+ /// from a subtraction of a value in this range and a value in \p Other.
+ ConstantRange sub(const ConstantRange &Other) const;
+
/// multiply - Return a new range representing the possible values resulting
- /// from a multiplication of a value in this range and a value in Other.
+ /// from a multiplication of a value in this range and a value in \p Other.
/// TODO: This isn't fully implemented yet.
ConstantRange multiply(const ConstantRange &Other) const;
/// smax - Return a new range representing the possible values resulting
- /// from a signed maximum of a value in this range and a value in Other.
+ /// from a signed maximum of a value in this range and a value in \p Other.
ConstantRange smax(const ConstantRange &Other) const;
/// umax - Return a new range representing the possible values resulting
- /// from an unsigned maximum of a value in this range and a value in Other.
+ /// from an unsigned maximum of a value in this range and a value in \p Other.
ConstantRange umax(const ConstantRange &Other) const;
/// udiv - Return a new range representing the possible values resulting
- /// from an unsigned division of a value in this range and a value in Other.
- /// TODO: This isn't fully implemented yet.
+ /// from an unsigned division of a value in this range and a value in
+ /// \p Other.
ConstantRange udiv(const ConstantRange &Other) const;
- /// shl - Return a new range representing the possible values resulting
- /// from a left shift of a value in this range by the Amount value.
- ConstantRange shl(const ConstantRange &Amount) const;
+ /// binaryAnd - return a new range representing the possible values resulting
+ /// from a binary-and of a value in this range by a value in \p Other.
+ ConstantRange binaryAnd(const ConstantRange &Other) const;
- /// ashr - Return a new range representing the possible values resulting from
- /// an arithmetic right shift of a value in this range by the Amount value.
- ConstantRange ashr(const ConstantRange &Amount) const;
+ /// binaryOr - return a new range representing the possible values resulting
+ /// from a binary-or of a value in this range by a value in \p Other.
+ ConstantRange binaryOr(const ConstantRange &Other) const;
- /// shr - Return a new range representing the possible values resulting
- /// from a logical right shift of a value in this range by the Amount value.
- ConstantRange lshr(const ConstantRange &Amount) const;
+ /// shl - Return a new range representing the possible values resulting
+ /// from a left shift of a value in this range by a value in \p Other.
+ /// TODO: This isn't fully implemented yet.
+ ConstantRange shl(const ConstantRange &Other) const;
+
+ /// lshr - Return a new range representing the possible values resulting
+ /// from a logical right shift of a value in this range and a value in
+ /// \p Other.
+ ConstantRange lshr(const ConstantRange &Other) const;
/// inverse - Return a new range that is the logical not of the current set.
+ ///
ConstantRange inverse() const;
/// print - Print out the bounds to a stream...