X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FADT%2FAPSInt.h;h=048c65ce2c773f00654f0f2a47db54b52ec40689;hb=105fdbb1312bac8c46ba2e28e9d6a70c0af151c8;hp=d75c7094cd4324be8206393bd73effdfd12d122b;hpb=db8918a98ff001d0c37abf41bc62364595340035;p=oota-llvm.git

diff --git a/include/llvm/ADT/APSInt.h b/include/llvm/ADT/APSInt.h
index d75c7094cd4..048c65ce2c7 100644
--- a/include/llvm/ADT/APSInt.h
+++ b/include/llvm/ADT/APSInt.h
@@ -1,9 +1,9 @@
-//===-- 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.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -18,31 +18,36 @@
 #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;
   }
 
@@ -50,8 +55,37 @@ public:
   bool isSigned() const { return !IsUnsigned; }
   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 trunc(uint32_t width) const {
+    return APSInt(APInt::trunc(width), IsUnsigned);
+  }
+
+  APSInt extend(uint32_t width) const {
+    if (IsUnsigned)
+      return APSInt(zext(width), IsUnsigned);
+    else
+      return APSInt(sext(width), IsUnsigned);
+  }
+
+  APSInt 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)
@@ -68,16 +102,23 @@ public:
       *this = sdiv(RHS);
     return *this;
   }
-  
-  const APSInt &operator>>=(unsigned Amt) {
+  APSInt operator%(const APSInt &RHS) const {
+    assert(IsUnsigned == RHS.IsUnsigned && "Signedness mismatch!");
+    return IsUnsigned ? APSInt(urem(RHS), true) : APSInt(srem(RHS), false);
+  }
+  APSInt operator/(const APSInt &RHS) const {
+    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);
+  }
+  APSInt& operator>>=(unsigned Amt) {
     *this = *this >> Amt;
     return *this;
   }
-  
-  APSInt operator>>(unsigned Amt) {
-    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);
@@ -94,8 +135,178 @@ public:
     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)--;
+    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);
+  }
+
+  /// \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