-//===-- 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.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_APSINT_H
-#define LLVM_APSINT_H
+#ifndef LLVM_ADT_APSINT_H
+#define LLVM_ADT_APSINT_H
#include "llvm/ADT/APInt.h"
namespace llvm {
-
-
+
class APSInt : public APInt {
bool IsUnsigned;
+
public:
+ /// Default constructor that creates an uninitialized APInt.
+ explicit APSInt() : IsUnsigned(false) {}
+
/// 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) {}
- APSInt &operator=(const APSInt &RHS) {
- APInt::operator=(RHS);
- IsUnsigned = RHS.IsUnsigned;
- return *this;
- }
+ explicit APSInt(APInt I, bool isUnsigned = true)
+ : APInt(std::move(I)), IsUnsigned(isUnsigned) {}
+
+ /// Construct an APSInt from a string representation.
+ ///
+ /// This constructor interprets the string \p Str using the radix of 10.
+ /// The interpretation stops at the end of the string. The bit width of the
+ /// constructed APSInt is determined automatically.
+ ///
+ /// \param Str the string to be interpreted.
+ explicit APSInt(StringRef Str);
- APSInt &operator=(const APInt &RHS) {
+ APSInt &operator=(APInt RHS) {
// Retain our current sign.
- APInt::operator=(RHS);
+ APInt::operator=(std::move(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; }
-
- /// This is used internally to convert an APInt to a string.
- /// @brief Converts an APInt to a std::string
- std::string toString(uint8_t Radix = 10) const {
+
+ /// 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; you should prefer passing in a SmallString instead.
+ std::string toString(unsigned Radix) const {
return APInt::toString(Radix, isSigned());
}
-
-
+ using APInt::toString;
+
+ /// \brief Get the correctly-extended \c int64_t value.
+ int64_t getExtValue() const {
+ assert(getMinSignedBits() <= 64 && "Too many bits for int64_t");
+ return isSigned() ? getSExtValue() : getZExtValue();
+ }
+
+ APSInt LLVM_ATTRIBUTE_UNUSED_RESULT trunc(uint32_t width) const {
+ return APSInt(APInt::trunc(width), IsUnsigned);
+ }
+
+ APSInt LLVM_ATTRIBUTE_UNUSED_RESULT extend(uint32_t width) const {
+ if (IsUnsigned)
+ return APSInt(zext(width), IsUnsigned);
+ else
+ return APSInt(sext(width), IsUnsigned);
+ }
+
+ APSInt LLVM_ATTRIBUTE_UNUSED_RESULT extOrTrunc(uint32_t width) const {
+ if (IsUnsigned)
+ return APSInt(zextOrTrunc(width), IsUnsigned);
+ else
+ return APSInt(sextOrTrunc(width), IsUnsigned);
+ }
+
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);
}
+ inline bool operator==(const APSInt& RHS) const {
+ assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
+ return eq(RHS);
+ }
+ inline bool operator!=(const APSInt& RHS) const {
+ return !((*this) == RHS);
+ }
+
+ bool operator==(int64_t RHS) const {
+ return compareValues(*this, get(RHS)) == 0;
+ }
+ bool operator!=(int64_t RHS) const {
+ return compareValues(*this, get(RHS)) != 0;
+ }
+ bool operator<=(int64_t RHS) const {
+ return compareValues(*this, get(RHS)) <= 0;
+ }
+ bool operator>=(int64_t RHS) const {
+ return compareValues(*this, get(RHS)) >= 0;
+ }
+ bool operator<(int64_t RHS) const {
+ return compareValues(*this, get(RHS)) < 0;
+ }
+ bool operator>(int64_t RHS) const {
+ return compareValues(*this, get(RHS)) > 0;
+ }
+
+ // 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 LLVM_ATTRIBUTE_UNUSED_RESULT 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 LLVM_ATTRIBUTE_UNUSED_RESULT 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 LLVM_ATTRIBUTE_UNUSED_RESULT 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);
+ }
+
+ /// \brief Determine if two APSInts have the same value, zero- or
+ /// sign-extending as needed.
+ static bool isSameValue(const APSInt &I1, const APSInt &I2) {
+ return !compareValues(I1, I2);
+ }
+
+ /// \brief Compare underlying values of two numbers.
+ static int compareValues(const APSInt &I1, const APSInt &I2) {
+ if (I1.getBitWidth() == I2.getBitWidth() && I1.isSigned() == I2.isSigned())
+ return I1 == I2 ? 0 : I1 > I2 ? 1 : -1;
+
+ // Check for a bit-width mismatch.
+ if (I1.getBitWidth() > I2.getBitWidth())
+ return compareValues(I1, I2.extend(I1.getBitWidth()));
+ else if (I2.getBitWidth() > I1.getBitWidth())
+ return compareValues(I1.extend(I2.getBitWidth()), I2);
+
+ // We have a signedness mismatch. Check for negative values and do an
+ // unsigned compare if both are positive.
+ if (I1.isSigned()) {
+ assert(!I2.isSigned() && "Expected signed mismatch");
+ if (I1.isNegative())
+ return -1;
+ } else {
+ assert(I2.isSigned() && "Expected signed mismatch");
+ if (I2.isNegative())
+ return 1;
+ }
+
+ return I1.eq(I2) ? 0 : I1.ugt(I2) ? 1 : -1;
+ }
+
+ static APSInt get(int64_t X) { return APSInt(APInt(64, X), false); }
+ static APSInt getUnsigned(uint64_t X) { return APSInt(APInt(64, X), 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 bool operator<=(int64_t V1, const APSInt &V2) { return V2 >= V1; }
+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 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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