#ifndef LLVM_APINT_H
#define LLVM_APINT_H
-#include "llvm/Support/DataTypes.h"
+#include "llvm/ADT/ArrayRef.h"
#include "llvm/Support/MathExtras.h"
#include <cassert>
#include <climits>
class Deserializer;
class FoldingSetNodeID;
class raw_ostream;
+ class StringRef;
template<typename T>
class SmallVectorImpl;
- /* An unsigned host type used as a single part of a multi-part
- bignum. */
+ // An unsigned host type used as a single part of a multi-part
+ // bignum.
typedef uint64_t integerPart;
const unsigned int host_char_bit = 8;
return isSingleWord() ? VAL : pVal[whichWord(bitPosition)];
}
+ /// Converts a string into a number. The string must be non-empty
+ /// and well-formed as a number of the given base. The bit-width
+ /// must be sufficient to hold the result.
+ ///
/// This is used by the constructors that take string arguments.
+ ///
+ /// StringRef::getAsInteger is superficially similar but (1) does
+ /// not assume that the string is well-formed and (2) grows the
+ /// result to hold the input.
+ ///
+ /// @param radix 2, 8, 10, 16, or 36
/// @brief Convert a char array into an APInt
- void fromString(unsigned numBits, const char *strStart, unsigned slen,
- uint8_t radix);
+ void fromString(unsigned numBits, StringRef str, uint8_t radix);
/// This is used by the toString method to divide by the radix. It simply
/// provides a more convenient form of divide for internal use since KnuthDiv
/// out-of-line slow case for inline constructor
void initSlowCase(unsigned numBits, uint64_t val, bool isSigned);
+ /// shared code between two array constructors
+ void initFromArray(ArrayRef<uint64_t> array);
+
/// out-of-line slow case for inline copy constructor
void initSlowCase(const APInt& that);
clearUnusedBits();
}
- /// Note that numWords can be smaller or larger than the corresponding bit
- /// width but any extraneous bits will be dropped.
+ /// Note that bigVal.size() can be smaller or larger than the corresponding
+ /// bit width but any extraneous bits will be dropped.
/// @param numBits the bit width of the constructed APInt
- /// @param numWords the number of words in bigVal
/// @param bigVal a sequence of words to form the initial value of the APInt
/// @brief Construct an APInt of numBits width, initialized as bigVal[].
+ APInt(unsigned numBits, ArrayRef<uint64_t> bigVal);
+ /// Equivalent to APInt(numBits, ArrayRef<uint64_t>(bigVal, numWords)), but
+ /// deprecated because this constructor is prone to ambiguity with the
+ /// APInt(unsigned, uint64_t, bool) constructor.
+ ///
+ /// If this overload is ever deleted, care should be taken to prevent calls
+ /// from being incorrectly captured by the APInt(unsigned, uint64_t, bool)
+ /// constructor.
APInt(unsigned numBits, unsigned numWords, const uint64_t bigVal[]);
- /// This constructor interprets the slen characters starting at StrStart as
- /// a string in the given radix. The interpretation stops when the first
- /// character that is not suitable for the radix is encountered. Acceptable
- /// radix values are 2, 8, 10 and 16. It is an error for the value implied by
- /// the string to require more bits than numBits.
+ /// This constructor interprets the string \arg str in the given radix. The
+ /// interpretation stops when the first character that is not suitable for the
+ /// radix is encountered, or the end of the string. Acceptable radix values
+ /// are 2, 8, 10, 16, and 36. It is an error for the value implied by the
+ /// string to require more bits than numBits.
+ ///
/// @param numBits the bit width of the constructed APInt
- /// @param strStart the start of the string to be interpreted
- /// @param slen the maximum number of characters to interpret
- /// @param radix the radix to use for the conversion
+ /// @param str the string to be interpreted
+ /// @param radix the radix to use for the conversion
/// @brief Construct an APInt from a string representation.
- APInt(unsigned numBits, const char strStart[], unsigned slen, uint8_t radix);
+ APInt(unsigned numBits, StringRef str, uint8_t radix);
/// Simply makes *this a copy of that.
/// @brief Copy Constructor.
/// objects, into FoldingSets.
void Profile(FoldingSetNodeID& id) const;
- /// @brief Used by the Bitcode serializer to emit APInts to Bitcode.
- void Emit(Serializer& S) const;
-
- /// @brief Used by the Bitcode deserializer to deserialize APInts.
- void Read(Deserializer& D);
-
/// @}
/// @name Value Tests
/// @{
/// @returns true if this APInt is positive.
/// @brief Determine if this APInt Value is positive.
bool isStrictlyPositive() const {
- return isNonNegative() && (*this) != 0;
+ return isNonNegative() && !!*this;
}
/// This checks to see if the value has all bits of the APInt are set or not.
/// value for the APInt's bit width.
/// @brief Determine if this is the smallest unsigned value.
bool isMinValue() const {
- return countPopulation() == 0;
+ return !*this;
}
/// This checks to see if the value of this APInt is the minimum signed
/// value for the APInt's bit width.
/// @brief Determine if this is the smallest signed value.
bool isMinSignedValue() const {
- return BitWidth == 1 ? VAL == 1 :
- isNegative() && countPopulation() == 1;
+ return BitWidth == 1 ? VAL == 1 : isNegative() && isPowerOf2();
}
/// @brief Check if this APInt has an N-bits unsigned integer value.
return true;
if (isSingleWord())
- return VAL == (VAL & (~0ULL >> (64 - N)));
- APInt Tmp(N, getNumWords(), pVal);
- Tmp.zext(getBitWidth());
- return Tmp == (*this);
+ return isUIntN(N, VAL);
+ return APInt(N, makeArrayRef(pVal, getNumWords())).zext(getBitWidth())
+ == (*this);
}
/// @brief Check if this APInt has an N-bits signed integer value.
}
/// @returns true if the argument APInt value is a power of two > 0.
- bool isPowerOf2() const;
+ bool isPowerOf2() const {
+ if (isSingleWord())
+ return isPowerOf2_64(VAL);
+ return countPopulationSlowCase() == 1;
+ }
/// isSignBit - Return true if this is the value returned by getSignBit.
bool isSignBit() const { return isMinSignedValue(); }
/// This converts the APInt to a boolean value as a test against zero.
/// @brief Boolean conversion function.
bool getBoolValue() const {
- return *this != 0;
+ return !!*this;
}
/// getLimitedValue - If this value is smaller than the specified limit,
/// @{
/// @brief Gets maximum unsigned value of APInt for specific bit width.
static APInt getMaxValue(unsigned numBits) {
- return APInt(numBits, 0).set();
+ return getAllOnesValue(numBits);
}
/// @brief Gets maximum signed value of APInt for a specific bit width.
static APInt getSignedMaxValue(unsigned numBits) {
- return APInt(numBits, 0).set().clear(numBits - 1);
+ APInt API = getAllOnesValue(numBits);
+ API.clearBit(numBits - 1);
+ return API;
}
/// @brief Gets minimum unsigned value of APInt for a specific bit width.
/// @brief Gets minimum signed value of APInt for a specific bit width.
static APInt getSignedMinValue(unsigned numBits) {
- return APInt(numBits, 0).set(numBits - 1);
+ APInt API(numBits, 0);
+ API.setBit(numBits - 1);
+ return API;
}
/// getSignBit - This is just a wrapper function of getSignedMinValue(), and
/// @returns the all-ones value for an APInt of the specified bit-width.
/// @brief Get the all-ones value.
static APInt getAllOnesValue(unsigned numBits) {
- return APInt(numBits, 0).set();
+ return APInt(numBits, -1ULL, true);
}
/// @returns the '0' value for an APInt of the specified bit-width.
/// @returns the low "numBits" bits of this APInt.
APInt getLoBits(unsigned numBits) const;
+ /// getOneBitSet - Return an APInt with exactly one bit set in the result.
+ static APInt getOneBitSet(unsigned numBits, unsigned BitNo) {
+ APInt Res(numBits, 0);
+ Res.setBit(BitNo);
+ return Res;
+ }
+
/// Constructs an APInt value that has a contiguous range of bits set. The
/// bits from loBit (inclusive) to hiBit (exclusive) will be set. All other
/// bits will be zero. For example, with parameters(32, 0, 16) you would get
// For small values, return quickly
if (numBits <= APINT_BITS_PER_WORD)
return APInt(numBits, ~0ULL << shiftAmt);
- return (~APInt(numBits, 0)).shl(shiftAmt);
+ return getAllOnesValue(numBits).shl(shiftAmt);
}
/// Constructs an APInt value that has the bottom loBitsSet bits set.
// For small values, return quickly.
if (numBits < APINT_BITS_PER_WORD)
return APInt(numBits, (1ULL << loBitsSet) - 1);
- return (~APInt(numBits, 0)).lshr(numBits - loBitsSet);
+ return getAllOnesValue(numBits).lshr(numBits - loBitsSet);
}
/// The hash value is computed as the sum of the words and the bit width.
/// @brief Unary bitwise complement operator.
APInt operator~() const {
APInt Result(*this);
- Result.flip();
+ Result.flipAllBits();
return Result;
}
/// @brief Bitwise OR assignment operator.
APInt& operator|=(const APInt& RHS);
+ /// Performs a bitwise OR operation on this APInt and RHS. RHS is
+ /// logically zero-extended or truncated to match the bit-width of
+ /// the LHS.
+ ///
+ /// @brief Bitwise OR assignment operator.
+ APInt& operator|=(uint64_t RHS) {
+ if (isSingleWord()) {
+ VAL |= RHS;
+ clearUnusedBits();
+ } else {
+ pVal[0] |= RHS;
+ }
+ return *this;
+ }
+
/// Performs a bitwise XOR operation on this APInt and RHS. The result is
/// assigned to *this.
/// @returns *this after XORing with RHS.
/// RHS are treated as unsigned quantities for purposes of this division.
/// @returns a new APInt value containing the division result
/// @brief Unsigned division operation.
- APInt udiv(const APInt& RHS) const;
+ APInt udiv(const APInt &RHS) const;
/// Signed divide this APInt by APInt RHS.
/// @brief Signed division function for APInt.
- APInt sdiv(const APInt& RHS) const {
+ APInt sdiv(const APInt &RHS) const {
if (isNegative())
if (RHS.isNegative())
return (-(*this)).udiv(-RHS);
/// which is *this.
/// @returns a new APInt value containing the remainder result
/// @brief Unsigned remainder operation.
- APInt urem(const APInt& RHS) const;
+ APInt urem(const APInt &RHS) const;
/// Signed remainder operation on APInt.
/// @brief Function for signed remainder operation.
- APInt srem(const APInt& RHS) const {
+ APInt srem(const APInt &RHS) const {
if (isNegative())
if (RHS.isNegative())
return -((-(*this)).urem(-RHS));
APInt &Quotient, APInt &Remainder);
static void sdivrem(const APInt &LHS, const APInt &RHS,
- APInt &Quotient, APInt &Remainder)
- {
+ APInt &Quotient, APInt &Remainder) {
if (LHS.isNegative()) {
if (RHS.isNegative())
APInt::udivrem(-LHS, -RHS, Quotient, Remainder);
APInt::udivrem(LHS, RHS, Quotient, Remainder);
}
}
+
+
+ // Operations that return overflow indicators.
+ APInt sadd_ov(const APInt &RHS, bool &Overflow) const;
+ APInt uadd_ov(const APInt &RHS, bool &Overflow) const;
+ APInt ssub_ov(const APInt &RHS, bool &Overflow) const;
+ APInt usub_ov(const APInt &RHS, bool &Overflow) const;
+ APInt sdiv_ov(const APInt &RHS, bool &Overflow) const;
+ APInt smul_ov(const APInt &RHS, bool &Overflow) const;
+ APInt umul_ov(const APInt &RHS, bool &Overflow) const;
+ APInt sshl_ov(unsigned Amt, bool &Overflow) const;
/// @returns the bit value at bitPosition
/// @brief Array-indexing support.
/// the validity of the less-than relationship.
/// @returns true if *this < RHS when both are considered unsigned.
/// @brief Unsigned less than comparison
- bool ult(const APInt& RHS) const;
+ bool ult(const APInt &RHS) const;
+
+ /// Regards both *this as an unsigned quantity and compares it with RHS for
+ /// the validity of the less-than relationship.
+ /// @returns true if *this < RHS when considered unsigned.
+ /// @brief Unsigned less than comparison
+ bool ult(uint64_t RHS) const {
+ return ult(APInt(getBitWidth(), RHS));
+ }
/// Regards both *this and RHS as signed quantities and compares them for
/// validity of the less-than relationship.
/// @brief Signed less than comparison
bool slt(const APInt& RHS) const;
+ /// Regards both *this as a signed quantity and compares it with RHS for
+ /// the validity of the less-than relationship.
+ /// @returns true if *this < RHS when considered signed.
+ /// @brief Signed less than comparison
+ bool slt(uint64_t RHS) const {
+ return slt(APInt(getBitWidth(), RHS));
+ }
+
/// Regards both *this and RHS as unsigned quantities and compares them for
/// validity of the less-or-equal relationship.
/// @returns true if *this <= RHS when both are considered unsigned.
return ult(RHS) || eq(RHS);
}
+ /// Regards both *this as an unsigned quantity and compares it with RHS for
+ /// the validity of the less-or-equal relationship.
+ /// @returns true if *this <= RHS when considered unsigned.
+ /// @brief Unsigned less or equal comparison
+ bool ule(uint64_t RHS) const {
+ return ule(APInt(getBitWidth(), RHS));
+ }
+
/// Regards both *this and RHS as signed quantities and compares them for
/// validity of the less-or-equal relationship.
/// @returns true if *this <= RHS when both are considered signed.
return slt(RHS) || eq(RHS);
}
+ /// Regards both *this as a signed quantity and compares it with RHS for
+ /// the validity of the less-or-equal relationship.
+ /// @returns true if *this <= RHS when considered signed.
+ /// @brief Signed less or equal comparison
+ bool sle(uint64_t RHS) const {
+ return sle(APInt(getBitWidth(), RHS));
+ }
+
/// Regards both *this and RHS as unsigned quantities and compares them for
/// the validity of the greater-than relationship.
/// @returns true if *this > RHS when both are considered unsigned.
return !ult(RHS) && !eq(RHS);
}
+ /// Regards both *this as an unsigned quantity and compares it with RHS for
+ /// the validity of the greater-than relationship.
+ /// @returns true if *this > RHS when considered unsigned.
+ /// @brief Unsigned greater than comparison
+ bool ugt(uint64_t RHS) const {
+ return ugt(APInt(getBitWidth(), RHS));
+ }
+
/// Regards both *this and RHS as signed quantities and compares them for
/// the validity of the greater-than relationship.
/// @returns true if *this > RHS when both are considered signed.
return !slt(RHS) && !eq(RHS);
}
+ /// Regards both *this as a signed quantity and compares it with RHS for
+ /// the validity of the greater-than relationship.
+ /// @returns true if *this > RHS when considered signed.
+ /// @brief Signed greater than comparison
+ bool sgt(uint64_t RHS) const {
+ return sgt(APInt(getBitWidth(), RHS));
+ }
+
/// Regards both *this and RHS as unsigned quantities and compares them for
/// validity of the greater-or-equal relationship.
/// @returns true if *this >= RHS when both are considered unsigned.
return !ult(RHS);
}
+ /// Regards both *this as an unsigned quantity and compares it with RHS for
+ /// the validity of the greater-or-equal relationship.
+ /// @returns true if *this >= RHS when considered unsigned.
+ /// @brief Unsigned greater or equal comparison
+ bool uge(uint64_t RHS) const {
+ return uge(APInt(getBitWidth(), RHS));
+ }
+
/// Regards both *this and RHS as signed quantities and compares them for
/// validity of the greater-or-equal relationship.
/// @returns true if *this >= RHS when both are considered signed.
return !slt(RHS);
}
+ /// Regards both *this as a signed quantity and compares it with RHS for
+ /// the validity of the greater-or-equal relationship.
+ /// @returns true if *this >= RHS when considered signed.
+ /// @brief Signed greater or equal comparison
+ bool sge(uint64_t RHS) const {
+ return sge(APInt(getBitWidth(), RHS));
+ }
+
+
+
+
/// This operation tests if there are any pairs of corresponding bits
/// between this APInt and RHS that are both set.
bool intersects(const APInt &RHS) const {
/// Truncate the APInt to a specified width. It is an error to specify a width
/// that is greater than or equal to the current width.
/// @brief Truncate to new width.
- APInt &trunc(unsigned width);
+ APInt trunc(unsigned width) const;
/// This operation sign extends the APInt to a new width. If the high order
/// bit is set, the fill on the left will be done with 1 bits, otherwise zero.
/// It is an error to specify a width that is less than or equal to the
/// current width.
/// @brief Sign extend to a new width.
- APInt &sext(unsigned width);
+ APInt sext(unsigned width) const;
/// This operation zero extends the APInt to a new width. The high order bits
/// are filled with 0 bits. It is an error to specify a width that is less
/// than or equal to the current width.
/// @brief Zero extend to a new width.
- APInt &zext(unsigned width);
+ APInt zext(unsigned width) const;
/// Make this APInt have the bit width given by \p width. The value is sign
/// extended, truncated, or left alone to make it that width.
/// @brief Sign extend or truncate to width
- APInt &sextOrTrunc(unsigned width);
+ APInt sextOrTrunc(unsigned width) const;
/// Make this APInt have the bit width given by \p width. The value is zero
/// extended, truncated, or left alone to make it that width.
/// @brief Zero extend or truncate to width
- APInt &zextOrTrunc(unsigned width);
+ APInt zextOrTrunc(unsigned width) const;
/// @}
/// @name Bit Manipulation Operators
/// @{
/// @brief Set every bit to 1.
- APInt& set() {
- if (isSingleWord()) {
+ void setAllBits() {
+ if (isSingleWord())
VAL = -1ULL;
- return clearUnusedBits();
+ else {
+ // Set all the bits in all the words.
+ for (unsigned i = 0; i < getNumWords(); ++i)
+ pVal[i] = -1ULL;
}
-
- // Set all the bits in all the words.
- for (unsigned i = 0; i < getNumWords(); ++i)
- pVal[i] = -1ULL;
// Clear the unused ones
- return clearUnusedBits();
+ clearUnusedBits();
}
/// Set the given bit to 1 whose position is given as "bitPosition".
/// @brief Set a given bit to 1.
- APInt& set(unsigned bitPosition);
+ void setBit(unsigned bitPosition);
/// @brief Set every bit to 0.
- APInt& clear() {
+ void clearAllBits() {
if (isSingleWord())
VAL = 0;
else
memset(pVal, 0, getNumWords() * APINT_WORD_SIZE);
- return *this;
}
/// Set the given bit to 0 whose position is given as "bitPosition".
/// @brief Set a given bit to 0.
- APInt& clear(unsigned bitPosition);
+ void clearBit(unsigned bitPosition);
/// @brief Toggle every bit to its opposite value.
- APInt& flip() {
- if (isSingleWord()) {
+ void flipAllBits() {
+ if (isSingleWord())
VAL ^= -1ULL;
- return clearUnusedBits();
+ else {
+ for (unsigned i = 0; i < getNumWords(); ++i)
+ pVal[i] ^= -1ULL;
}
- for (unsigned i = 0; i < getNumWords(); ++i)
- pVal[i] ^= -1ULL;
- return clearUnusedBits();
+ clearUnusedBits();
}
/// Toggle a given bit to its opposite value whose position is given
/// as "bitPosition".
/// @brief Toggles a given bit to its opposite value.
- APInt& flip(unsigned bitPosition);
+ void flipBit(unsigned bitPosition);
/// @}
/// @name Value Characterization Functions
/// @returns the number of words to hold the integer value of this APInt.
/// @brief Get the number of words.
unsigned getNumWords() const {
+ return getNumWords(BitWidth);
+ }
+
+ /// Here one word's bitwidth equals to that of uint64_t.
+ /// @returns the number of words to hold the integer value with a
+ /// given bit width.
+ /// @brief Get the number of words.
+ static unsigned getNumWords(unsigned BitWidth) {
return (BitWidth + APINT_BITS_PER_WORD - 1) / APINT_BITS_PER_WORD;
}
}
/// This method determines how many bits are required to hold the APInt
- /// equivalent of the string given by \p str of length \p slen.
+ /// equivalent of the string given by \arg str.
/// @brief Get bits required for string value.
- static unsigned getBitsNeeded(const char* str, unsigned slen, uint8_t radix);
+ static unsigned getBitsNeeded(StringRef str, uint8_t radix);
/// countLeadingZeros - This function is an APInt version of the
/// countLeadingZeros_{32,64} functions in MathExtras.h. It counts the number
/// @brief Count the number of leading one bits.
unsigned countLeadingOnes() const;
+ /// Computes the number of leading bits of this APInt that are equal to its
+ /// sign bit.
+ unsigned getNumSignBits() const {
+ return isNegative() ? countLeadingOnes() : countLeadingZeros();
+ }
+
/// countTrailingZeros - This function is an APInt version of the
/// countTrailingZeros_{32,64} functions in MathExtras.h. It counts
/// the number of zeros from the least significant bit to the first set bit.
/// toString - Converts an APInt to a string and append it to Str. Str is
/// commonly a SmallString.
- void toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed) const;
+ void toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed,
+ bool formatAsCLiteral = false) const;
/// Considers the APInt to be unsigned and converts it into a string in the
- /// radix given. The radix can be 2, 8, 10 or 16.
+ /// radix given. The radix can be 2, 8, 10 16, or 36.
void toStringUnsigned(SmallVectorImpl<char> &Str, unsigned Radix = 10) const {
- toString(Str, Radix, false);
+ toString(Str, Radix, false, false);
}
/// Considers the APInt to be signed and converts it into a string in the
- /// radix given. The radix can be 2, 8, 10 or 16.
+ /// radix given. The radix can be 2, 8, 10, 16, or 36.
void toStringSigned(SmallVectorImpl<char> &Str, unsigned Radix = 10) const {
- toString(Str, Radix, true);
+ toString(Str, Radix, true, false);
}
/// toString - This returns the APInt as a std::string. Note that this is an
}
/// The conversion does not do a translation from double to integer, it just
- /// re-interprets the bits of the double. Note that it is valid to do this on
- /// any bit width but bits from V may get truncated.
+ /// re-interprets the bits of the double.
/// @brief Converts a double to APInt bits.
- APInt& doubleToBits(double V) {
+ static APInt doubleToBits(double V) {
union {
uint64_t I;
double D;
} T;
T.D = V;
- if (isSingleWord())
- VAL = T.I;
- else
- pVal[0] = T.I;
- return clearUnusedBits();
+ return APInt(sizeof T * CHAR_BIT, T.I);
}
/// The conversion does not do a translation from float to integer, it just
- /// re-interprets the bits of the float. Note that it is valid to do this on
- /// any bit width but bits from V may get truncated.
+ /// re-interprets the bits of the float.
/// @brief Converts a float to APInt bits.
- APInt& floatToBits(float V) {
+ static APInt floatToBits(float V) {
union {
unsigned I;
float F;
} T;
T.F = V;
- if (isSingleWord())
- VAL = T.I;
- else
- pVal[0] = T.I;
- return clearUnusedBits();
+ return APInt(sizeof T * CHAR_BIT, T.I);
}
/// @}
return BitWidth - 1 - countLeadingZeros();
}
+ /// @returns the ceil log base 2 of this APInt.
+ unsigned ceilLogBase2() const {
+ return BitWidth - (*this - 1).countLeadingZeros();
+ }
+
/// @returns the log base 2 of this APInt if its an exact power of two, -1
/// otherwise
int32_t exactLogBase2() const {
/// @returns the multiplicative inverse for a given modulo.
APInt multiplicativeInverse(const APInt& modulo) const;
+ /// @}
+ /// @name Support for division by constant
+ /// @{
+
+ /// Calculate the magic number for signed division by a constant.
+ struct ms;
+ ms magic() const;
+
+ /// Calculate the magic number for unsigned division by a constant.
+ struct mu;
+ mu magicu(unsigned LeadingZeros = 0) const;
+
/// @}
/// @name Building-block Operations for APInt and APFloat
/// @{
/// Set the given bit of a bignum. Zero-based.
static void tcSetBit(integerPart *, unsigned int bit);
+ /// Clear the given bit of a bignum. Zero-based.
+ static void tcClearBit(integerPart *, unsigned int bit);
+
/// Returns the bit number of the least or most significant set bit
/// of a number. If the input number has no bits set -1U is
/// returned.
/// @}
};
+/// Magic data for optimising signed division by a constant.
+struct APInt::ms {
+ APInt m; ///< magic number
+ unsigned s; ///< shift amount
+};
+
+/// Magic data for optimising unsigned division by a constant.
+struct APInt::mu {
+ APInt m; ///< magic number
+ bool a; ///< add indicator
+ unsigned s; ///< shift amount
+};
+
inline bool operator==(uint64_t V1, const APInt& V2) {
return V2 == V1;
}
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