-//===-- llvm/Support/APSInt.h - Arbitrary Precision Signed Int -*- C++ -*--===//
+//===-- llvm/ADT/APSInt.h - Arbitrary Precision Signed Int -----*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Chris Lattner and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/ADT/APInt.h"
namespace llvm {
-
-
+
class APSInt : public APInt {
bool IsUnsigned;
public:
+ /// Default constructor that creates an uninitialized APInt.
+ explicit APSInt() {}
+
/// APSInt ctor - Create an APSInt with the specified width, default to
/// unsigned.
- explicit APSInt(unsigned BitWidth) : APInt(BitWidth, 0), IsUnsigned(true) {}
- APSInt(const APInt &I) : APInt(I), IsUnsigned(true) {}
+ explicit APSInt(uint32_t BitWidth, bool isUnsigned = true)
+ : APInt(BitWidth, 0), IsUnsigned(isUnsigned) {}
+
+ 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 {
+ 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.
+ std::string toString(unsigned Radix) const {
+ return APInt::toString(Radix, isSigned());
+ }
+ using APInt::toString;
+
+ APSInt& extend(uint32_t width) {
+ if (IsUnsigned)
+ zext(width);
+ else
+ sext(width);
+ return *this;
+ }
+
+ APSInt& extOrTrunc(uint32_t width) {
+ if (IsUnsigned)
+ zextOrTrunc(width);
+ else
+ sextOrTrunc(width);
+ return *this;
+ }
+
const APSInt &operator%=(const APSInt &RHS) {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
if (IsUnsigned)
}
APSInt operator%(const APSInt &RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
- return IsUnsigned ? urem(RHS) : srem(RHS);
+ return IsUnsigned ? APSInt(urem(RHS), true) : APSInt(srem(RHS), false);
}
APSInt operator/(const APSInt &RHS) const {
assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
- return IsUnsigned ? udiv(RHS) : sdiv(RHS);
+ return IsUnsigned ? APSInt(udiv(RHS), true) : APSInt(sdiv(RHS), false);
}
-
- const APSInt &operator>>=(unsigned Amt) {
- *this = *this >> Amt;
- return *this;
+
+ APSInt operator>>(unsigned Amt) const {
+ return IsUnsigned ? APSInt(lshr(Amt), true) : APSInt(ashr(Amt), false);
}
-
- APSInt& extend(uint32_t width) {
- if (IsUnsigned)
- zext(width);
- else
- sext(width);
+ APSInt& operator>>=(unsigned Amt) {
+ *this = *this >> Amt;
return *this;
}
-
- APSInt& extOrTrunc(uint32_t width) {
- if (IsUnsigned)
- zextOrTrunc(width);
- else
- sextOrTrunc(width);
- return *this;
- }
-
- APSInt operator>>(unsigned Amt) const {
- return IsUnsigned ? lshr(Amt) : ashr(Amt);
- }
-
+
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);
}
+
+ // 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)--;
+ return *this;
+ }
+ APSInt operator++(int) {
+ return APSInt(++static_cast<APInt&>(*this), IsUnsigned);
+ }
+ 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) {
+ 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 {
+ 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 {
+ 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 {
+ 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 {
+ assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
+ return APSInt(static_cast<const APInt&>(*this) + RHS, IsUnsigned);
+ }
+ APSInt operator-(const APSInt& RHS) const {
+ assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
+ return APSInt(static_cast<const APInt&>(*this) - RHS, IsUnsigned);
+ }
+ 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 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 Unsigned) {
+ return APSInt(Unsigned ? APInt::getMinValue(numBits)
+ : APInt::getSignedMinValue(numBits), Unsigned);
+ }
+
+ /// Profile - Used to insert APSInt objects, or objects that contain APSInt
+ /// objects, into FoldingSets.
+ void Profile(FoldingSetNodeID& ID) const;
};
-
+
+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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