#include "llvm/ADT/APInt.h"
namespace llvm {
-
+
class APSInt : public APInt {
bool IsUnsigned;
public:
/// APSInt ctor - Create an APSInt with the specified width, default to
/// unsigned.
- explicit APSInt(uint32_t BitWidth, bool isUnsigned = true)
+ explicit APSInt(uint32_t BitWidth, bool isUnsigned = true)
: APInt(BitWidth, 0), IsUnsigned(isUnsigned) {}
- explicit APSInt(const APInt &I, bool isUnsigned = true)
+ explicit APSInt(const APInt &I, bool isUnsigned = true)
: APInt(I), IsUnsigned(isUnsigned) {}
APSInt &operator=(const APSInt &RHS) {
- APInt::operator=(RHS);
+ APInt::operator=(RHS);
IsUnsigned = RHS.IsUnsigned;
return *this;
}
APSInt &operator=(const APInt &RHS) {
// Retain our current sign.
- APInt::operator=(RHS);
+ APInt::operator=(RHS);
return *this;
}
APSInt &operator=(uint64_t RHS) {
// Retain our current sign.
- APInt::operator=(RHS);
+ APInt::operator=(RHS);
return *this;
}
bool isUnsigned() const { return IsUnsigned; }
void setIsUnsigned(bool Val) { IsUnsigned = Val; }
void setIsSigned(bool Val) { IsUnsigned = !Val; }
-
+
/// toString - Append this APSInt to the specified SmallString.
void toString(SmallVectorImpl<char> &Str, unsigned Radix = 10) const {
- return APInt::toString(Str, Radix, isSigned());
+ APInt::toString(Str, Radix, isSigned());
}
/// toString - Converts an APInt to a std::string. This is an inefficient
/// method, your should prefer passing in a SmallString instead.
return APInt::toString(Radix, isSigned());
}
using APInt::toString;
-
- APSInt& extend(uint32_t width) {
+
+ APSInt trunc(uint32_t width) const {
+ return APSInt(APInt::trunc(width), IsUnsigned);
+ }
+
+ APSInt extend(uint32_t width) const {
if (IsUnsigned)
- zext(width);
+ return APSInt(zext(width), IsUnsigned);
else
- sext(width);
- return *this;
+ return APSInt(sext(width), IsUnsigned);
}
-
- APSInt& extOrTrunc(uint32_t width) {
+
+ APSInt extOrTrunc(uint32_t width) const {
if (IsUnsigned)
- zextOrTrunc(width);
+ return APSInt(zextOrTrunc(width), IsUnsigned);
else
- sextOrTrunc(width);
- return *this;
+ return APSInt(sextOrTrunc(width), IsUnsigned);
}
-
+
const APSInt &operator%=(const APSInt &RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
if (IsUnsigned)
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? APSInt(udiv(RHS), true) : APSInt(sdiv(RHS), false);
}
-
+
APSInt operator>>(unsigned Amt) const {
return IsUnsigned ? APSInt(lshr(Amt), true) : APSInt(ashr(Amt), false);
}
*this = *this >> Amt;
return *this;
}
-
+
inline bool operator<(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? ult(RHS) : slt(RHS);
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return IsUnsigned ? uge(RHS) : sge(RHS);
}
-
+ inline bool operator==(const APSInt& RHS) const {
+ assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
+ return eq(RHS);
+ }
+ inline bool operator==(int64_t RHS) const {
+ return isSameValue(*this, APSInt(APInt(64, RHS), true));
+ }
+ inline bool operator!=(const APSInt& RHS) const {
+ return !((*this) == RHS);
+ }
+ inline bool operator!=(int64_t RHS) const {
+ return !((*this) == RHS);
+ }
+
// The remaining operators just wrap the logic of APInt, but retain the
// signedness information.
-
+
APSInt operator<<(unsigned Bits) const {
return APSInt(static_cast<const APInt&>(*this) << Bits, IsUnsigned);
- }
+ }
APSInt& operator<<=(unsigned Amt) {
*this = *this << Amt;
return *this;
}
-
+
APSInt& operator++() {
static_cast<APInt&>(*this)++;
return *this;
}
APSInt& operator--() {
- static_cast<APInt&>(*this)++;
+ static_cast<APInt&>(*this)--;
return *this;
}
APSInt operator++(int) {
}
APSInt operator--(int) {
return APSInt(--static_cast<APInt&>(*this), IsUnsigned);
- }
+ }
APSInt operator-() const {
return APSInt(-static_cast<const APInt&>(*this), IsUnsigned);
- }
+ }
APSInt& operator+=(const APSInt& RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
static_cast<APInt&>(*this) += RHS;
return *this;
- }
+ }
APSInt& operator-=(const APSInt& RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
static_cast<APInt&>(*this) -= RHS;
return *this;
- }
+ }
APSInt& operator*=(const APSInt& RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
static_cast<APInt&>(*this) *= RHS;
return *this;
}
- APSInt operator&(const APSInt& RHS) const {
+ APSInt operator&(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return APSInt(static_cast<const APInt&>(*this) & RHS, IsUnsigned);
}
APSInt And(const APSInt& RHS) const {
return this->operator&(RHS);
}
-
- APSInt operator|(const APSInt& RHS) const {
+
+ APSInt operator|(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return APSInt(static_cast<const APInt&>(*this) | RHS, IsUnsigned);
}
APSInt Or(const APSInt& RHS) const {
return this->operator|(RHS);
}
-
-
- APSInt operator^(const APSInt& RHS) const {
+
+
+ APSInt operator^(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return APSInt(static_cast<const APInt&>(*this) ^ RHS, IsUnsigned);
}
APSInt Xor(const APSInt& RHS) const {
return this->operator^(RHS);
- }
-
+ }
+
APSInt operator*(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return APSInt(static_cast<const APInt&>(*this) * RHS, IsUnsigned);
}
- APSInt operator+(const APSInt& RHS) const {
+ APSInt operator+(const APSInt& RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return APSInt(static_cast<const APInt&>(*this) + RHS, IsUnsigned);
}
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
return APSInt(static_cast<const APInt&>(*this) - RHS, IsUnsigned);
}
- APSInt operator~() const {
+ APSInt operator~() const {
return APSInt(~static_cast<const APInt&>(*this), IsUnsigned);
}
-
+
/// getMaxValue - Return the APSInt representing the maximum integer value
/// with the given bit width and signedness.
- static APSInt getMaxValue(uint32_t numBits, bool Signed) {
- return APSInt(Signed ? APInt::getSignedMaxValue(numBits)
- : APInt::getMaxValue(numBits), Signed);
+ static APSInt getMaxValue(uint32_t numBits, bool Unsigned) {
+ return APSInt(Unsigned ? APInt::getMaxValue(numBits)
+ : APInt::getSignedMaxValue(numBits), Unsigned);
}
-
+
/// getMinValue - Return the APSInt representing the minimum integer value
/// with the given bit width and signedness.
- static APSInt getMinValue(uint32_t numBits, bool Signed) {
- return APSInt(Signed ? APInt::getSignedMinValue(numBits)
- : APInt::getMinValue(numBits), Signed);
+ static APSInt getMinValue(uint32_t numBits, bool Unsigned) {
+ return APSInt(Unsigned ? APInt::getMinValue(numBits)
+ : APInt::getSignedMinValue(numBits), Unsigned);
+ }
+
+ /// \brief Determine if two APSInts have the same value, zero- or
+ /// sign-extending as needed.
+ static bool isSameValue(const APSInt &I1, const APSInt &I2) {
+ if (I1.getBitWidth() == I2.getBitWidth() && I1.isSigned() == I2.isSigned())
+ return I1 == I2;
+
+ // Check for a bit-width mismatch.
+ if (I1.getBitWidth() > I2.getBitWidth())
+ return isSameValue(I1, I2.extend(I1.getBitWidth()));
+ else if (I2.getBitWidth() > I1.getBitWidth())
+ return isSameValue(I1.extend(I2.getBitWidth()), I2);
+
+ // We have a signedness mismatch. Turn the signed value into an unsigned
+ // value.
+ if (I1.isSigned()) {
+ if (I1.isNegative())
+ return false;
+
+ return APSInt(I1, true) == I2;
+ }
+
+ if (I2.isNegative())
+ return false;
+
+ return I1 == APSInt(I2, true);
}
-
+
/// Profile - Used to insert APSInt objects, or objects that contain APSInt
/// objects, into FoldingSets.
void Profile(FoldingSetNodeID& ID) const;
};
-
+
+inline bool operator==(int64_t V1, const APSInt& V2) {
+ return V2 == V1;
+}
+inline bool operator!=(int64_t V1, const APSInt& V2) {
+ return V2 != V1;
+}
+
inline raw_ostream &operator<<(raw_ostream &OS, const APSInt &I) {
I.print(OS, I.isSigned());
return OS;
}
-
-
+
} // end namespace llvm
#endif
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