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Diffstat (limited to 'lldb/source/Utility/Scalar.cpp')
| -rw-r--r-- | lldb/source/Utility/Scalar.cpp | 2908 | 
1 files changed, 2908 insertions, 0 deletions
diff --git a/lldb/source/Utility/Scalar.cpp b/lldb/source/Utility/Scalar.cpp new file mode 100644 index 0000000000000..e9aec17b6650d --- /dev/null +++ b/lldb/source/Utility/Scalar.cpp @@ -0,0 +1,2908 @@ +//===-- Scalar.cpp ----------------------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "lldb/Utility/Scalar.h" + +#include "lldb/Utility/DataExtractor.h" +#include "lldb/Utility/Endian.h" +#include "lldb/Utility/Status.h" +#include "lldb/Utility/Stream.h" +#include "lldb/Utility/StreamString.h" +#include "lldb/lldb-types.h" + +#include "llvm/ADT/SmallString.h" + +#include <cinttypes> +#include <cstdio> + +using namespace lldb; +using namespace lldb_private; + +// Promote to max type currently follows the ANSI C rule for type promotion in +// expressions. +static Scalar::Type PromoteToMaxType( +    const Scalar &lhs,  // The const left hand side object +    const Scalar &rhs,  // The const right hand side object +    Scalar &temp_value, // A modifiable temp value than can be used to hold +                        // either the promoted lhs or rhs object +    const Scalar *&promoted_lhs_ptr, // Pointer to the resulting possibly +                                     // promoted value of lhs (at most one of +                                     // lhs/rhs will get promoted) +    const Scalar *&promoted_rhs_ptr  // Pointer to the resulting possibly +                                     // promoted value of rhs (at most one of +                                     // lhs/rhs will get promoted) +) { +  Scalar result; +  // Initialize the promoted values for both the right and left hand side +  // values to be the objects themselves. If no promotion is needed (both right +  // and left have the same type), then the temp_value will not get used. +  promoted_lhs_ptr = &lhs; +  promoted_rhs_ptr = &rhs; +  // Extract the types of both the right and left hand side values +  Scalar::Type lhs_type = lhs.GetType(); +  Scalar::Type rhs_type = rhs.GetType(); + +  if (lhs_type > rhs_type) { +    // Right hand side need to be promoted +    temp_value = rhs; // Copy right hand side into the temp value +    if (temp_value.Promote(lhs_type)) // Promote it +      promoted_rhs_ptr = +          &temp_value; // Update the pointer for the promoted right hand side +  } else if (lhs_type < rhs_type) { +    // Left hand side need to be promoted +    temp_value = lhs; // Copy left hand side value into the temp value +    if (temp_value.Promote(rhs_type)) // Promote it +      promoted_lhs_ptr = +          &temp_value; // Update the pointer for the promoted left hand side +  } + +  // Make sure our type promotion worked as expected +  if (promoted_lhs_ptr->GetType() == promoted_rhs_ptr->GetType()) +    return promoted_lhs_ptr->GetType(); // Return the resulting max type + +  // Return the void type (zero) if we fail to promote either of the values. +  return Scalar::e_void; +} + +Scalar::Scalar() : m_type(e_void), m_float(static_cast<float>(0)) {} + +bool Scalar::GetData(DataExtractor &data, size_t limit_byte_size) const { +  size_t byte_size = GetByteSize(); +  if (byte_size > 0) { +    const uint8_t *bytes = reinterpret_cast<const uint8_t *>(GetBytes()); + +    if (limit_byte_size < byte_size) { +      if (endian::InlHostByteOrder() == eByteOrderLittle) { +        // On little endian systems if we want fewer bytes from the current +        // type we just specify fewer bytes since the LSByte is first... +        byte_size = limit_byte_size; +      } else if (endian::InlHostByteOrder() == eByteOrderBig) { +        // On big endian systems if we want fewer bytes from the current type +        // have to advance our initial byte pointer and trim down the number of +        // bytes since the MSByte is first +        bytes += byte_size - limit_byte_size; +        byte_size = limit_byte_size; +      } +    } + +    data.SetData(bytes, byte_size, endian::InlHostByteOrder()); +    return true; +  } +  data.Clear(); +  return false; +} + +const void *Scalar::GetBytes() const { +  const uint64_t *apint_words; +  const uint8_t *bytes; +  static float_t flt_val; +  static double_t dbl_val; +  static uint64_t swapped_words[8]; +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +    bytes = reinterpret_cast<const uint8_t *>(m_integer.getRawData()); +    // getRawData always returns a pointer to an uint64_t.  If we have a +    // smaller type, we need to update the pointer on big-endian systems. +    if (endian::InlHostByteOrder() == eByteOrderBig) { +      size_t byte_size = m_integer.getBitWidth() / 8; +      if (byte_size < 8) +        bytes += 8 - byte_size; +    } +    return bytes; +  // getRawData always returns a pointer to an array of uint64_t values, +  // where the least-significant word always comes first.  On big-endian +  // systems we need to swap the words. +  case e_sint128: +  case e_uint128: +    apint_words = m_integer.getRawData(); +    if (endian::InlHostByteOrder() == eByteOrderBig) { +      swapped_words[0] = apint_words[1]; +      swapped_words[1] = apint_words[0]; +      apint_words = swapped_words; +    } +    return reinterpret_cast<const void *>(apint_words); +  case e_sint256: +  case e_uint256: +    apint_words = m_integer.getRawData(); +    if (endian::InlHostByteOrder() == eByteOrderBig) { +      swapped_words[0] = apint_words[3]; +      swapped_words[1] = apint_words[2]; +      swapped_words[2] = apint_words[1]; +      swapped_words[3] = apint_words[0]; +      apint_words = swapped_words; +    } +    return reinterpret_cast<const void *>(apint_words); +  case e_sint512: +  case e_uint512: +    apint_words = m_integer.getRawData(); +    if (endian::InlHostByteOrder() == eByteOrderBig) { +      swapped_words[0] = apint_words[7]; +      swapped_words[1] = apint_words[6]; +      swapped_words[2] = apint_words[5]; +      swapped_words[3] = apint_words[4]; +      swapped_words[4] = apint_words[3]; +      swapped_words[5] = apint_words[2]; +      swapped_words[6] = apint_words[1]; +      swapped_words[7] = apint_words[0]; +      apint_words = swapped_words; +    } +    return reinterpret_cast<const void *>(apint_words); +  case e_float: +    flt_val = m_float.convertToFloat(); +    return reinterpret_cast<const void *>(&flt_val); +  case e_double: +    dbl_val = m_float.convertToDouble(); +    return reinterpret_cast<const void *>(&dbl_val); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    apint_words = ldbl_val.getRawData(); +    // getRawData always returns a pointer to an array of two uint64_t values, +    // where the least-significant word always comes first.  On big-endian +    // systems we need to swap the two words. +    if (endian::InlHostByteOrder() == eByteOrderBig) { +      swapped_words[0] = apint_words[1]; +      swapped_words[1] = apint_words[0]; +      apint_words = swapped_words; +    } +    return reinterpret_cast<const void *>(apint_words); +  } +  return nullptr; +} + +size_t Scalar::GetByteSize() const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return (m_integer.getBitWidth() / 8); +  case e_float: +    return sizeof(float_t); +  case e_double: +    return sizeof(double_t); +  case e_long_double: +    return sizeof(long_double_t); +  } +  return 0; +} + +bool Scalar::IsZero() const { +  llvm::APInt zero_int = llvm::APInt::getNullValue(m_integer.getBitWidth() / 8); +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_uint512: +  case e_sint512: +    return llvm::APInt::isSameValue(zero_int, m_integer); +  case e_float: +  case e_double: +  case e_long_double: +    return m_float.isZero(); +  } +  return false; +} + +void Scalar::GetValue(Stream *s, bool show_type) const { +  if (show_type) +    s->Printf("(%s) ", GetTypeAsCString()); + +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_slong: +  case e_slonglong: +  case e_sint128: +  case e_sint256: +  case e_sint512: +    s->PutCString(m_integer.toString(10, true)); +    break; +  case e_uint: +  case e_ulong: +  case e_ulonglong: +  case e_uint128: +  case e_uint256: +  case e_uint512: +    s->PutCString(m_integer.toString(10, false)); +    break; +  case e_float: +  case e_double: +  case e_long_double: +    llvm::SmallString<24> string; +    m_float.toString(string); +    s->Printf("%s", string.c_str()); +    break; +  } +} + +const char *Scalar::GetTypeAsCString() const { +  switch (m_type) { +  case e_void: +    return "void"; +  case e_sint: +    return "int"; +  case e_uint: +    return "unsigned int"; +  case e_slong: +    return "long"; +  case e_ulong: +    return "unsigned long"; +  case e_slonglong: +    return "long long"; +  case e_ulonglong: +    return "unsigned long long"; +  case e_sint128: +    return "int128_t"; +  case e_uint128: +    return "unsigned int128_t"; +  case e_sint256: +    return "int256_t"; +  case e_uint256: +    return "unsigned int256_t"; +  case e_sint512: +    return "int512_t"; +  case e_uint512: +    return "unsigned int512_t"; +  case e_float: +    return "float"; +  case e_double: +    return "double"; +  case e_long_double: +    return "long double"; +  } +  return "<invalid Scalar type>"; +} + +Scalar &Scalar::operator=(const Scalar &rhs) { +  if (this != &rhs) { +    m_type = rhs.m_type; +    m_integer = llvm::APInt(rhs.m_integer); +    m_float = rhs.m_float; +  } +  return *this; +} + +Scalar &Scalar::operator=(const int v) { +  m_type = e_sint; +  m_integer = llvm::APInt(sizeof(int) * 8, v, true); +  return *this; +} + +Scalar &Scalar::operator=(unsigned int v) { +  m_type = e_uint; +  m_integer = llvm::APInt(sizeof(int) * 8, v); +  return *this; +} + +Scalar &Scalar::operator=(long v) { +  m_type = e_slong; +  m_integer = llvm::APInt(sizeof(long) * 8, v, true); +  return *this; +} + +Scalar &Scalar::operator=(unsigned long v) { +  m_type = e_ulong; +  m_integer = llvm::APInt(sizeof(long) * 8, v); +  return *this; +} + +Scalar &Scalar::operator=(long long v) { +  m_type = e_slonglong; +  m_integer = llvm::APInt(sizeof(long) * 8, v, true); +  return *this; +} + +Scalar &Scalar::operator=(unsigned long long v) { +  m_type = e_ulonglong; +  m_integer = llvm::APInt(sizeof(long long) * 8, v); +  return *this; +} + +Scalar &Scalar::operator=(float v) { +  m_type = e_float; +  m_float = llvm::APFloat(v); +  return *this; +} + +Scalar &Scalar::operator=(double v) { +  m_type = e_double; +  m_float = llvm::APFloat(v); +  return *this; +} + +Scalar &Scalar::operator=(long double v) { +  m_type = e_long_double; +  if (m_ieee_quad) +    m_float = llvm::APFloat(llvm::APFloat::IEEEquad(), +                            llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, +                                        (reinterpret_cast<type128 *>(&v))->x)); +  else +    m_float = llvm::APFloat(llvm::APFloat::x87DoubleExtended(), +                            llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, +                                        (reinterpret_cast<type128 *>(&v))->x)); +  return *this; +} + +Scalar &Scalar::operator=(llvm::APInt rhs) { +  m_integer = llvm::APInt(rhs); +  switch (m_integer.getBitWidth()) { +  case 8: +  case 16: +  case 32: +    if (m_integer.isSignedIntN(sizeof(sint_t) * 8)) +      m_type = e_sint; +    else +      m_type = e_uint; +    break; +  case 64: +    if (m_integer.isSignedIntN(sizeof(slonglong_t) * 8)) +      m_type = e_slonglong; +    else +      m_type = e_ulonglong; +    break; +  case 128: +    if (m_integer.isSignedIntN(BITWIDTH_INT128)) +      m_type = e_sint128; +    else +      m_type = e_uint128; +    break; +  case 256: +    if (m_integer.isSignedIntN(BITWIDTH_INT256)) +      m_type = e_sint256; +    else +      m_type = e_uint256; +    break; +  case 512: +    if (m_integer.isSignedIntN(BITWIDTH_INT512)) +      m_type = e_sint512; +    else +      m_type = e_uint512; +    break; +  } +  return *this; +} + +Scalar::~Scalar() = default; + +Scalar::Type Scalar::GetBestTypeForBitSize(size_t bit_size, bool sign) { +  // Scalar types are always host types, hence the sizeof(). +  if (sign) { +    if (bit_size <= sizeof(int)*8) return Scalar::e_sint; +    if (bit_size <= sizeof(long)*8) return Scalar::e_slong; +    if (bit_size <= sizeof(long long)*8) return Scalar::e_slonglong; +    if (bit_size <= 128) return Scalar::e_sint128; +    if (bit_size <= 256) return Scalar::e_sint256; +    if (bit_size <= 512) return Scalar::e_sint512; +  } else { +    if (bit_size <= sizeof(unsigned int)*8) return Scalar::e_uint; +    if (bit_size <= sizeof(unsigned long)*8) return Scalar::e_ulong; +    if (bit_size <= sizeof(unsigned long long)*8) return Scalar::e_ulonglong; +    if (bit_size <= 128) return Scalar::e_uint128; +    if (bit_size <= 256) return Scalar::e_uint256; +    if (bit_size <= 512) return Scalar::e_uint512; +  } +  return Scalar::e_void; +} + +void Scalar::TruncOrExtendTo(Scalar::Type type, uint16_t bits) { +  switch (type) { +  case e_sint: +  case e_slong: +  case e_slonglong: +  case e_sint128: +  case e_sint256: +  case e_sint512: +    m_integer = m_integer.sextOrTrunc(bits); +    break; +  case e_uint: +  case e_ulong: +  case e_ulonglong: +  case e_uint128: +  case e_uint256: +  case e_uint512: +    m_integer = m_integer.zextOrTrunc(bits); +    break; +  default: +    llvm_unreachable("Promoting a Scalar to a specific number of bits is only " +                     "supported for integer types."); +  } +  m_type = type; +} + +bool Scalar::Promote(Scalar::Type type) { +  bool success = false; +  switch (m_type) { +  case e_void: +    break; + +  case e_sint: +    switch (type) { +    case e_void: +      break; +    case e_sint: +      success = true; +      break; +    case e_uint: +      m_integer = m_integer.sextOrTrunc(sizeof(uint_t) * 8); +      success = true; +      break; + +    case e_slong: +      m_integer = m_integer.sextOrTrunc(sizeof(slong_t) * 8); +      success = true; +      break; + +    case e_ulong: +      m_integer = m_integer.sextOrTrunc(sizeof(ulong_t) * 8); +      success = true; +      break; + +    case e_slonglong: +      m_integer = m_integer.sextOrTrunc(sizeof(slonglong_t) * 8); +      success = true; +      break; + +    case e_ulonglong: +      m_integer = m_integer.sextOrTrunc(sizeof(ulonglong_t) * 8); +      success = true; +      break; + +    case e_sint128: +    case e_uint128: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_uint: +    switch (type) { +    case e_void: +    case e_sint: +      break; +    case e_uint: +      success = true; +      break; +    case e_slong: +      m_integer = m_integer.zextOrTrunc(sizeof(slong_t) * 8); +      success = true; +      break; + +    case e_ulong: +      m_integer = m_integer.zextOrTrunc(sizeof(ulong_t) * 8); +      success = true; +      break; + +    case e_slonglong: +      m_integer = m_integer.zextOrTrunc(sizeof(slonglong_t) * 8); +      success = true; +      break; + +    case e_ulonglong: +      m_integer = m_integer.zextOrTrunc(sizeof(ulonglong_t) * 8); +      success = true; +      break; + +    case e_sint128: +    case e_uint128: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_slong: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +      break; +    case e_slong: +      success = true; +      break; +    case e_ulong: +      m_integer = m_integer.sextOrTrunc(sizeof(ulong_t) * 8); +      success = true; +      break; + +    case e_slonglong: +      m_integer = m_integer.sextOrTrunc(sizeof(slonglong_t) * 8); +      success = true; +      break; + +    case e_ulonglong: +      m_integer = m_integer.sextOrTrunc(sizeof(ulonglong_t) * 8); +      success = true; +      break; + +    case e_sint128: +    case e_uint128: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_ulong: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +      break; +    case e_ulong: +      success = true; +      break; +    case e_slonglong: +      m_integer = m_integer.zextOrTrunc(sizeof(slonglong_t) * 8); +      success = true; +      break; + +    case e_ulonglong: +      m_integer = m_integer.zextOrTrunc(sizeof(ulonglong_t) * 8); +      success = true; +      break; + +    case e_sint128: +    case e_uint128: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_slonglong: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +      break; +    case e_slonglong: +      success = true; +      break; +    case e_ulonglong: +      m_integer = m_integer.sextOrTrunc(sizeof(ulonglong_t) * 8); +      success = true; +      break; + +    case e_sint128: +    case e_uint128: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_ulonglong: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +      break; +    case e_ulonglong: +      success = true; +      break; +    case e_sint128: +    case e_uint128: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_sint128: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +      break; +    case e_sint128: +      success = true; +      break; +    case e_uint128: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128); +      success = true; +      break; + +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_uint128: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +      break; +    case e_uint128: +      success = true; +      break; +    case e_sint256: +    case e_uint256: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_sint256: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +      break; +    case e_sint256: +      success = true; +      break; +    case e_uint256: +      m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256); +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, true, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_uint256: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +      break; +    case e_uint256: +      success = true; +      break; + +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.zextOrTrunc(BITWIDTH_INT512); +      success = true; +      break; + +    case e_float: +      m_float = llvm::APFloat(llvm::APFloat::IEEEsingle()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_double: +      m_float = llvm::APFloat(llvm::APFloat::IEEEdouble()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; + +    case e_long_double: +      m_float = llvm::APFloat(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                          : llvm::APFloat::x87DoubleExtended()); +      m_float.convertFromAPInt(m_integer, false, +                               llvm::APFloat::rmNearestTiesToEven); +      success = true; +      break; +    } +    break; + +  case e_sint512: +  case e_uint512: +    lldbassert(false && "unimplemented"); +    break; + +  case e_float: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_uint512: +    case e_sint512: +      break; +    case e_float: +      success = true; +      break; +    case e_double: +      m_float = llvm::APFloat(static_cast<double_t>(m_float.convertToFloat())); +      success = true; +      break; + +    case e_long_double: { +      bool ignore; +      m_float.convert(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                  : llvm::APFloat::x87DoubleExtended(), +                      llvm::APFloat::rmNearestTiesToEven, &ignore); +      success = true; +      break; +    } +    } +    break; + +  case e_double: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +    case e_float: +      break; +    case e_double: +      success = true; +      break; +    case e_long_double: { +      bool ignore; +      m_float.convert(m_ieee_quad ? llvm::APFloat::IEEEquad() +                                  : llvm::APFloat::x87DoubleExtended(), +                      llvm::APFloat::rmNearestTiesToEven, &ignore); +      success = true; +      break; +    } +    } +    break; + +  case e_long_double: +    switch (type) { +    case e_void: +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +    case e_float: +    case e_double: +      break; +    case e_long_double: +      success = true; +      break; +    } +    break; +  } + +  if (success) +    m_type = type; +  return success; +} + +const char *Scalar::GetValueTypeAsCString(Scalar::Type type) { +  switch (type) { +  case e_void: +    return "void"; +  case e_sint: +    return "int"; +  case e_uint: +    return "unsigned int"; +  case e_slong: +    return "long"; +  case e_ulong: +    return "unsigned long"; +  case e_slonglong: +    return "long long"; +  case e_ulonglong: +    return "unsigned long long"; +  case e_float: +    return "float"; +  case e_double: +    return "double"; +  case e_long_double: +    return "long double"; +  case e_sint128: +    return "int128_t"; +  case e_uint128: +    return "uint128_t"; +  case e_sint256: +    return "int256_t"; +  case e_uint256: +    return "uint256_t"; +  case e_sint512: +    return "int512_t"; +  case e_uint512: +    return "uint512_t"; +  } +  return "???"; +} + +Scalar::Type +Scalar::GetValueTypeForSignedIntegerWithByteSize(size_t byte_size) { +  if (byte_size <= sizeof(sint_t)) +    return e_sint; +  if (byte_size <= sizeof(slong_t)) +    return e_slong; +  if (byte_size <= sizeof(slonglong_t)) +    return e_slonglong; +  return e_void; +} + +Scalar::Type +Scalar::GetValueTypeForUnsignedIntegerWithByteSize(size_t byte_size) { +  if (byte_size <= sizeof(uint_t)) +    return e_uint; +  if (byte_size <= sizeof(ulong_t)) +    return e_ulong; +  if (byte_size <= sizeof(ulonglong_t)) +    return e_ulonglong; +  return e_void; +} + +Scalar::Type Scalar::GetValueTypeForFloatWithByteSize(size_t byte_size) { +  if (byte_size == sizeof(float_t)) +    return e_float; +  if (byte_size == sizeof(double_t)) +    return e_double; +  if (byte_size == sizeof(long_double_t)) +    return e_long_double; +  return e_void; +} + +bool Scalar::MakeSigned() { +  bool success = false; + +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +    success = true; +    break; +  case e_uint: +    m_type = e_sint; +    success = true; +    break; +  case e_slong: +    success = true; +    break; +  case e_ulong: +    m_type = e_slong; +    success = true; +    break; +  case e_slonglong: +    success = true; +    break; +  case e_ulonglong: +    m_type = e_slonglong; +    success = true; +    break; +  case e_sint128: +    success = true; +    break; +  case e_uint128: +    m_type = e_sint128; +    success = true; +    break; +  case e_sint256: +    success = true; +    break; +  case e_uint256: +    m_type = e_sint256; +    success = true; +    break; +  case e_sint512: +    success = true; +    break; +  case e_uint512: +    m_type = e_sint512; +    success = true; +    break; +  case e_float: +    success = true; +    break; +  case e_double: +    success = true; +    break; +  case e_long_double: +    success = true; +    break; +  } + +  return success; +} + +bool Scalar::MakeUnsigned() { +  bool success = false; + +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +    m_type = e_uint; +    success = true; +    break; +  case e_uint: +    success = true; +    break; +  case e_slong: +    m_type = e_ulong; +    success = true; +    break; +  case e_ulong: +    success = true; +    break; +  case e_slonglong: +    m_type = e_ulonglong; +    success = true; +    break; +  case e_ulonglong: +    success = true; +    break; +  case e_sint128: +    m_type = e_uint128; +    success = true; +    break; +  case e_uint128: +    success = true; +    break; +  case e_sint256: +    m_type = e_uint256; +    success = true; +    break; +  case e_uint256: +    success = true; +    break; +  case e_sint512: +    m_type = e_uint512; +    success = true; +    break; +  case e_uint512: +    success = true; +    break; +  case e_float: +    success = true; +    break; +  case e_double: +    success = true; +    break; +  case e_long_double: +    success = true; +    break; +  } + +  return success; +} + +signed char Scalar::SChar(char fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<schar_t>( +        (m_integer.sextOrTrunc(sizeof(schar_t) * 8)).getSExtValue()); +  case e_float: +    return static_cast<schar_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<schar_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<schar_t>( +        (ldbl_val.sextOrTrunc(sizeof(schar_t) * 8)).getSExtValue()); +  } +  return fail_value; +} + +unsigned char Scalar::UChar(unsigned char fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<uchar_t>( +        (m_integer.zextOrTrunc(sizeof(uchar_t) * 8)).getZExtValue()); +  case e_float: +    return static_cast<uchar_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<uchar_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<uchar_t>( +        (ldbl_val.zextOrTrunc(sizeof(uchar_t) * 8)).getZExtValue()); +  } +  return fail_value; +} + +short Scalar::SShort(short fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<sshort_t>( +        (m_integer.sextOrTrunc(sizeof(sshort_t) * 8)).getSExtValue()); +  case e_float: +    return static_cast<sshort_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<sshort_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<sshort_t>( +        (ldbl_val.sextOrTrunc(sizeof(sshort_t) * 8)).getSExtValue()); +  } +  return fail_value; +} + +unsigned short Scalar::UShort(unsigned short fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<ushort_t>( +        (m_integer.zextOrTrunc(sizeof(ushort_t) * 8)).getZExtValue()); +  case e_float: +    return static_cast<ushort_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<ushort_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<ushort_t>( +        (ldbl_val.zextOrTrunc(sizeof(ushort_t) * 8)).getZExtValue()); +  } +  return fail_value; +} + +int Scalar::SInt(int fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<sint_t>( +        (m_integer.sextOrTrunc(sizeof(sint_t) * 8)).getSExtValue()); +  case e_float: +    return static_cast<sint_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<sint_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<sint_t>( +        (ldbl_val.sextOrTrunc(sizeof(sint_t) * 8)).getSExtValue()); +  } +  return fail_value; +} + +unsigned int Scalar::UInt(unsigned int fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<uint_t>( +        (m_integer.zextOrTrunc(sizeof(uint_t) * 8)).getZExtValue()); +  case e_float: +    return static_cast<uint_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<uint_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<uint_t>( +        (ldbl_val.zextOrTrunc(sizeof(uint_t) * 8)).getZExtValue()); +  } +  return fail_value; +} + +long Scalar::SLong(long fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<slong_t>( +        (m_integer.sextOrTrunc(sizeof(slong_t) * 8)).getSExtValue()); +  case e_float: +    return static_cast<slong_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<slong_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<slong_t>( +        (ldbl_val.sextOrTrunc(sizeof(slong_t) * 8)).getSExtValue()); +  } +  return fail_value; +} + +unsigned long Scalar::ULong(unsigned long fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<ulong_t>( +        (m_integer.zextOrTrunc(sizeof(ulong_t) * 8)).getZExtValue()); +  case e_float: +    return static_cast<ulong_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<ulong_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<ulong_t>( +        (ldbl_val.zextOrTrunc(sizeof(ulong_t) * 8)).getZExtValue()); +  } +  return fail_value; +} + +long long Scalar::SLongLong(long long fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<slonglong_t>( +        (m_integer.sextOrTrunc(sizeof(slonglong_t) * 8)).getSExtValue()); +  case e_float: +    return static_cast<slonglong_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<slonglong_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<slonglong_t>( +        (ldbl_val.sextOrTrunc(sizeof(slonglong_t) * 8)).getSExtValue()); +  } +  return fail_value; +} + +unsigned long long Scalar::ULongLong(unsigned long long fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<ulonglong_t>( +        (m_integer.zextOrTrunc(sizeof(ulonglong_t) * 8)).getZExtValue()); +  case e_float: +    return static_cast<ulonglong_t>(m_float.convertToFloat()); +  case e_double: { +    double d_val = m_float.convertToDouble(); +    llvm::APInt rounded_double = +        llvm::APIntOps::RoundDoubleToAPInt(d_val, sizeof(ulonglong_t) * 8); +    return static_cast<ulonglong_t>( +        (rounded_double.zextOrTrunc(sizeof(ulonglong_t) * 8)).getZExtValue()); +  } +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<ulonglong_t>( +        (ldbl_val.zextOrTrunc(sizeof(ulonglong_t) * 8)).getZExtValue()); +  } +  return fail_value; +} + +llvm::APInt Scalar::SInt128(llvm::APInt &fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return m_integer; +  case e_float: +  case e_double: +  case e_long_double: +    return m_float.bitcastToAPInt(); +  } +  return fail_value; +} + +llvm::APInt Scalar::UInt128(const llvm::APInt &fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return m_integer; +  case e_float: +  case e_double: +  case e_long_double: +    return m_float.bitcastToAPInt(); +  } +  return fail_value; +} + +float Scalar::Float(float fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return llvm::APIntOps::RoundAPIntToFloat(m_integer); +  case e_float: +    return m_float.convertToFloat(); +  case e_double: +    return static_cast<float_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return ldbl_val.bitsToFloat(); +  } +  return fail_value; +} + +double Scalar::Double(double fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return llvm::APIntOps::RoundAPIntToDouble(m_integer); +  case e_float: +    return static_cast<double_t>(m_float.convertToFloat()); +  case e_double: +    return m_float.convertToDouble(); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return ldbl_val.bitsToFloat(); +  } +  return fail_value; +} + +long double Scalar::LongDouble(long double fail_value) const { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    return static_cast<long_double_t>( +        llvm::APIntOps::RoundAPIntToDouble(m_integer)); +  case e_float: +    return static_cast<long_double_t>(m_float.convertToFloat()); +  case e_double: +    return static_cast<long_double_t>(m_float.convertToDouble()); +  case e_long_double: +    llvm::APInt ldbl_val = m_float.bitcastToAPInt(); +    return static_cast<long_double_t>(ldbl_val.bitsToDouble()); +  } +  return fail_value; +} + +Scalar &Scalar::operator+=(const Scalar &rhs) { +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((m_type = PromoteToMaxType(*this, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (m_type) { +    case e_void: +      break; +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +      m_integer = a->m_integer + b->m_integer; +      break; + +    case e_float: +    case e_double: +    case e_long_double: +      m_float = a->m_float + b->m_float; +      break; +    } +  } +  return *this; +} + +Scalar &Scalar::operator<<=(const Scalar &rhs) { +  switch (m_type) { +  case e_void: +  case e_float: +  case e_double: +  case e_long_double: +    m_type = e_void; +    break; + +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    switch (rhs.m_type) { +    case e_void: +    case e_float: +    case e_double: +    case e_long_double: +      m_type = e_void; +      break; +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +      m_integer = m_integer << rhs.m_integer; +      break; +    } +    break; +  } +  return *this; +} + +bool Scalar::ShiftRightLogical(const Scalar &rhs) { +  switch (m_type) { +  case e_void: +  case e_float: +  case e_double: +  case e_long_double: +    m_type = e_void; +    break; + +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    switch (rhs.m_type) { +    case e_void: +    case e_float: +    case e_double: +    case e_long_double: +      m_type = e_void; +      break; +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.lshr(rhs.m_integer); +      break; +    } +    break; +  } +  return m_type != e_void; +} + +Scalar &Scalar::operator>>=(const Scalar &rhs) { +  switch (m_type) { +  case e_void: +  case e_float: +  case e_double: +  case e_long_double: +    m_type = e_void; +    break; + +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    switch (rhs.m_type) { +    case e_void: +    case e_float: +    case e_double: +    case e_long_double: +      m_type = e_void; +      break; +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +      m_integer = m_integer.ashr(rhs.m_integer); +      break; +    } +    break; +  } +  return *this; +} + +Scalar &Scalar::operator&=(const Scalar &rhs) { +  switch (m_type) { +  case e_void: +  case e_float: +  case e_double: +  case e_long_double: +    m_type = e_void; +    break; + +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    switch (rhs.m_type) { +    case e_void: +    case e_float: +    case e_double: +    case e_long_double: +      m_type = e_void; +      break; +    case e_sint: +    case e_uint: +    case e_slong: +    case e_ulong: +    case e_slonglong: +    case e_ulonglong: +    case e_sint128: +    case e_uint128: +    case e_sint256: +    case e_uint256: +    case e_sint512: +    case e_uint512: +      m_integer &= rhs.m_integer; +      break; +    } +    break; +  } +  return *this; +} + +bool Scalar::AbsoluteValue() { +  switch (m_type) { +  case e_void: +    break; + +  case e_sint: +  case e_slong: +  case e_slonglong: +  case e_sint128: +  case e_sint256: +  case e_sint512: +    if (m_integer.isNegative()) +      m_integer = -m_integer; +    return true; + +  case e_uint: +  case e_ulong: +  case e_ulonglong: +    return true; +  case e_uint128: +  case e_uint256: +  case e_uint512: +  case e_float: +  case e_double: +  case e_long_double: +    m_float.clearSign(); +    return true; +  } +  return false; +} + +bool Scalar::UnaryNegate() { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    m_integer = -m_integer; +    return true; +  case e_float: +  case e_double: +  case e_long_double: +    m_float.changeSign(); +    return true; +  } +  return false; +} + +bool Scalar::OnesComplement() { +  switch (m_type) { +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    m_integer = ~m_integer; +    return true; + +  case e_void: +  case e_float: +  case e_double: +  case e_long_double: +    break; +  } +  return false; +} + +const Scalar lldb_private::operator+(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_void: +      break; +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      result.m_integer = a->m_integer + b->m_integer; +      break; +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      result.m_float = a->m_float + b->m_float; +      break; +    } +  } +  return result; +} + +const Scalar lldb_private::operator-(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_void: +      break; +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      result.m_integer = a->m_integer - b->m_integer; +      break; +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      result.m_float = a->m_float - b->m_float; +      break; +    } +  } +  return result; +} + +const Scalar lldb_private::operator/(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_void: +      break; +    case Scalar::e_sint: +    case Scalar::e_slong: +    case Scalar::e_slonglong: +    case Scalar::e_sint128: +    case Scalar::e_sint256: +    case Scalar::e_sint512: +      if (b->m_integer != 0) { +        result.m_integer = a->m_integer.sdiv(b->m_integer); +        return result; +      } +      break; +    case Scalar::e_uint: +    case Scalar::e_ulong: +    case Scalar::e_ulonglong: +    case Scalar::e_uint128: +    case Scalar::e_uint256: +    case Scalar::e_uint512: +      if (b->m_integer != 0) { +        result.m_integer = a->m_integer.udiv(b->m_integer); +        return result; +      } +      break; +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      if (!b->m_float.isZero()) { +        result.m_float = a->m_float / b->m_float; +        return result; +      } +      break; +    } +  } +  // For division only, the only way it should make it here is if a promotion +  // failed, or if we are trying to do a divide by zero. +  result.m_type = Scalar::e_void; +  return result; +} + +const Scalar lldb_private::operator*(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_void: +      break; +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      result.m_integer = a->m_integer * b->m_integer; +      break; +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      result.m_float = a->m_float * b->m_float; +      break; +    } +  } +  return result; +} + +const Scalar lldb_private::operator&(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      result.m_integer = a->m_integer & b->m_integer; +      break; +    case Scalar::e_void: +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      // No bitwise AND on floats, doubles of long doubles +      result.m_type = Scalar::e_void; +      break; +    } +  } +  return result; +} + +const Scalar lldb_private::operator|(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      result.m_integer = a->m_integer | b->m_integer; +      break; + +    case Scalar::e_void: +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      // No bitwise AND on floats, doubles of long doubles +      result.m_type = Scalar::e_void; +      break; +    } +  } +  return result; +} + +const Scalar lldb_private::operator%(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    default: +      break; +    case Scalar::e_void: +      break; +    case Scalar::e_sint: +    case Scalar::e_slong: +    case Scalar::e_slonglong: +    case Scalar::e_sint128: +    case Scalar::e_sint256: +    case Scalar::e_sint512: +      if (b->m_integer != 0) { +        result.m_integer = a->m_integer.srem(b->m_integer); +        return result; +      } +      break; +    case Scalar::e_uint: +    case Scalar::e_ulong: +    case Scalar::e_ulonglong: +    case Scalar::e_uint128: +    case Scalar::e_uint256: +    case Scalar::e_uint512: +      if (b->m_integer != 0) { +        result.m_integer = a->m_integer.urem(b->m_integer); +        return result; +      } +      break; +    } +  } +  result.m_type = Scalar::e_void; +  return result; +} + +const Scalar lldb_private::operator^(const Scalar &lhs, const Scalar &rhs) { +  Scalar result; +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  if ((result.m_type = PromoteToMaxType(lhs, rhs, temp_value, a, b)) != +      Scalar::e_void) { +    switch (result.m_type) { +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      result.m_integer = a->m_integer ^ b->m_integer; +      break; + +    case Scalar::e_void: +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      // No bitwise AND on floats, doubles of long doubles +      result.m_type = Scalar::e_void; +      break; +    } +  } +  return result; +} + +const Scalar lldb_private::operator<<(const Scalar &lhs, const Scalar &rhs) { +  Scalar result = lhs; +  result <<= rhs; +  return result; +} + +const Scalar lldb_private::operator>>(const Scalar &lhs, const Scalar &rhs) { +  Scalar result = lhs; +  result >>= rhs; +  return result; +} + +Status Scalar::SetValueFromCString(const char *value_str, Encoding encoding, +                                   size_t byte_size) { +  Status error; +  if (value_str == nullptr || value_str[0] == '\0') { +    error.SetErrorString("Invalid c-string value string."); +    return error; +  } +  switch (encoding) { +  case eEncodingInvalid: +    error.SetErrorString("Invalid encoding."); +    break; + +  case eEncodingUint: +    if (byte_size <= sizeof(uint64_t)) { +      uint64_t uval64; +      if (!llvm::to_integer(value_str, uval64)) +        error.SetErrorStringWithFormat( +            "'%s' is not a valid unsigned integer string value", value_str); +      else if (!UIntValueIsValidForSize(uval64, byte_size)) +        error.SetErrorStringWithFormat( +            "value 0x%" PRIx64 " is too large to fit in a %" PRIu64 +            " byte unsigned integer value", +            uval64, static_cast<uint64_t>(byte_size)); +      else { +        m_type = Scalar::GetValueTypeForUnsignedIntegerWithByteSize(byte_size); +        switch (m_type) { +        case e_uint: +          m_integer = llvm::APInt(sizeof(uint_t) * 8, uval64, false); +          break; +        case e_ulong: +          m_integer = llvm::APInt(sizeof(ulong_t) * 8, uval64, false); +          break; +        case e_ulonglong: +          m_integer = llvm::APInt(sizeof(ulonglong_t) * 8, uval64, false); +          break; +        default: +          error.SetErrorStringWithFormat( +              "unsupported unsigned integer byte size: %" PRIu64 "", +              static_cast<uint64_t>(byte_size)); +          break; +        } +      } +    } else { +      error.SetErrorStringWithFormat( +          "unsupported unsigned integer byte size: %" PRIu64 "", +          static_cast<uint64_t>(byte_size)); +      return error; +    } +    break; + +  case eEncodingSint: +    if (byte_size <= sizeof(int64_t)) { +      int64_t sval64; +      if (!llvm::to_integer(value_str, sval64)) +        error.SetErrorStringWithFormat( +            "'%s' is not a valid signed integer string value", value_str); +      else if (!SIntValueIsValidForSize(sval64, byte_size)) +        error.SetErrorStringWithFormat( +            "value 0x%" PRIx64 " is too large to fit in a %" PRIu64 +            " byte signed integer value", +            sval64, static_cast<uint64_t>(byte_size)); +      else { +        m_type = Scalar::GetValueTypeForSignedIntegerWithByteSize(byte_size); +        switch (m_type) { +        case e_sint: +          m_integer = llvm::APInt(sizeof(sint_t) * 8, sval64, true); +          break; +        case e_slong: +          m_integer = llvm::APInt(sizeof(slong_t) * 8, sval64, true); +          break; +        case e_slonglong: +          m_integer = llvm::APInt(sizeof(slonglong_t) * 8, sval64, true); +          break; +        default: +          error.SetErrorStringWithFormat( +              "unsupported signed integer byte size: %" PRIu64 "", +              static_cast<uint64_t>(byte_size)); +          break; +        } +      } +    } else { +      error.SetErrorStringWithFormat( +          "unsupported signed integer byte size: %" PRIu64 "", +          static_cast<uint64_t>(byte_size)); +      return error; +    } +    break; + +  case eEncodingIEEE754: +    static float f_val; +    static double d_val; +    static long double l_val; +    if (byte_size == sizeof(float)) { +      if (::sscanf(value_str, "%f", &f_val) == 1) { +        m_float = llvm::APFloat(f_val); +        m_type = e_float; +      } else +        error.SetErrorStringWithFormat("'%s' is not a valid float string value", +                                       value_str); +    } else if (byte_size == sizeof(double)) { +      if (::sscanf(value_str, "%lf", &d_val) == 1) { +        m_float = llvm::APFloat(d_val); +        m_type = e_double; +      } else +        error.SetErrorStringWithFormat("'%s' is not a valid float string value", +                                       value_str); +    } else if (byte_size == sizeof(long double)) { +      if (::sscanf(value_str, "%Lf", &l_val) == 1) { +        m_float = llvm::APFloat( +            llvm::APFloat::x87DoubleExtended(), +            llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, +                        (reinterpret_cast<type128 *>(&l_val))->x)); +        m_type = e_long_double; +      } else +        error.SetErrorStringWithFormat("'%s' is not a valid float string value", +                                       value_str); +    } else { +      error.SetErrorStringWithFormat("unsupported float byte size: %" PRIu64 "", +                                     static_cast<uint64_t>(byte_size)); +      return error; +    } +    break; + +  case eEncodingVector: +    error.SetErrorString("vector encoding unsupported."); +    break; +  } +  if (error.Fail()) +    m_type = e_void; + +  return error; +} + +Status Scalar::SetValueFromData(DataExtractor &data, lldb::Encoding encoding, +                                size_t byte_size) { +  Status error; + +  type128 int128; +  type256 int256; +  switch (encoding) { +  case lldb::eEncodingInvalid: +    error.SetErrorString("invalid encoding"); +    break; +  case lldb::eEncodingVector: +    error.SetErrorString("vector encoding unsupported"); +    break; +  case lldb::eEncodingUint: { +    lldb::offset_t offset = 0; + +    switch (byte_size) { +    case 1: +      operator=(data.GetU8(&offset)); +      break; +    case 2: +      operator=(data.GetU16(&offset)); +      break; +    case 4: +      operator=(data.GetU32(&offset)); +      break; +    case 8: +      operator=(data.GetU64(&offset)); +      break; +    case 16: +      if (data.GetByteOrder() == eByteOrderBig) { +        int128.x[1] = data.GetU64(&offset); +        int128.x[0] = data.GetU64(&offset); +      } else { +        int128.x[0] = data.GetU64(&offset); +        int128.x[1] = data.GetU64(&offset); +      } +      operator=(llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, int128.x)); +      break; +    case 32: +      if (data.GetByteOrder() == eByteOrderBig) { +        int256.x[3] = data.GetU64(&offset); +        int256.x[2] = data.GetU64(&offset); +        int256.x[1] = data.GetU64(&offset); +        int256.x[0] = data.GetU64(&offset); +      } else { +        int256.x[0] = data.GetU64(&offset); +        int256.x[1] = data.GetU64(&offset); +        int256.x[2] = data.GetU64(&offset); +        int256.x[3] = data.GetU64(&offset); +      } +      operator=(llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, int256.x)); +      break; +    default: +      error.SetErrorStringWithFormat( +          "unsupported unsigned integer byte size: %" PRIu64 "", +          static_cast<uint64_t>(byte_size)); +      break; +    } +  } break; +  case lldb::eEncodingSint: { +    lldb::offset_t offset = 0; + +    switch (byte_size) { +    case 1: +      operator=(static_cast<int8_t>(data.GetU8(&offset))); +      break; +    case 2: +      operator=(static_cast<int16_t>(data.GetU16(&offset))); +      break; +    case 4: +      operator=(static_cast<int32_t>(data.GetU32(&offset))); +      break; +    case 8: +      operator=(static_cast<int64_t>(data.GetU64(&offset))); +      break; +    case 16: +      if (data.GetByteOrder() == eByteOrderBig) { +        int128.x[1] = data.GetU64(&offset); +        int128.x[0] = data.GetU64(&offset); +      } else { +        int128.x[0] = data.GetU64(&offset); +        int128.x[1] = data.GetU64(&offset); +      } +      operator=(llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, int128.x)); +      break; +    case 32: +      if (data.GetByteOrder() == eByteOrderBig) { +        int256.x[3] = data.GetU64(&offset); +        int256.x[2] = data.GetU64(&offset); +        int256.x[1] = data.GetU64(&offset); +        int256.x[0] = data.GetU64(&offset); +      } else { +        int256.x[0] = data.GetU64(&offset); +        int256.x[1] = data.GetU64(&offset); +        int256.x[2] = data.GetU64(&offset); +        int256.x[3] = data.GetU64(&offset); +      } +      operator=(llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, int256.x)); +      break; +    default: +      error.SetErrorStringWithFormat( +          "unsupported signed integer byte size: %" PRIu64 "", +          static_cast<uint64_t>(byte_size)); +      break; +    } +  } break; +  case lldb::eEncodingIEEE754: { +    lldb::offset_t offset = 0; + +    if (byte_size == sizeof(float)) +      operator=(data.GetFloat(&offset)); +    else if (byte_size == sizeof(double)) +      operator=(data.GetDouble(&offset)); +    else if (byte_size == sizeof(long double)) +      operator=(data.GetLongDouble(&offset)); +    else +      error.SetErrorStringWithFormat("unsupported float byte size: %" PRIu64 "", +                                     static_cast<uint64_t>(byte_size)); +  } break; +  } + +  return error; +} + +bool Scalar::SignExtend(uint32_t sign_bit_pos) { +  const uint32_t max_bit_pos = GetByteSize() * 8; + +  if (sign_bit_pos < max_bit_pos) { +    switch (m_type) { +    case Scalar::e_void: +    case Scalar::e_float: +    case Scalar::e_double: +    case Scalar::e_long_double: +      return false; + +    case Scalar::e_sint: +    case Scalar::e_uint: +    case Scalar::e_slong: +    case Scalar::e_ulong: +    case Scalar::e_slonglong: +    case Scalar::e_ulonglong: +    case Scalar::e_sint128: +    case Scalar::e_uint128: +    case Scalar::e_sint256: +    case Scalar::e_uint256: +    case Scalar::e_sint512: +    case Scalar::e_uint512: +      if (max_bit_pos == sign_bit_pos) +        return true; +      else if (sign_bit_pos < (max_bit_pos - 1)) { +        llvm::APInt sign_bit = llvm::APInt::getSignMask(sign_bit_pos + 1); +        llvm::APInt bitwize_and = m_integer & sign_bit; +        if (bitwize_and.getBoolValue()) { +          const llvm::APInt mask = +              ~(sign_bit) + llvm::APInt(m_integer.getBitWidth(), 1); +          m_integer |= mask; +        } +        return true; +      } +      break; +    } +  } +  return false; +} + +size_t Scalar::GetAsMemoryData(void *dst, size_t dst_len, +                               lldb::ByteOrder dst_byte_order, +                               Status &error) const { +  // Get a data extractor that points to the native scalar data +  DataExtractor data; +  if (!GetData(data)) { +    error.SetErrorString("invalid scalar value"); +    return 0; +  } + +  const size_t src_len = data.GetByteSize(); + +  // Prepare a memory buffer that contains some or all of the register value +  const size_t bytes_copied = +      data.CopyByteOrderedData(0,               // src offset +                               src_len,         // src length +                               dst,             // dst buffer +                               dst_len,         // dst length +                               dst_byte_order); // dst byte order +  if (bytes_copied == 0) +    error.SetErrorString("failed to copy data"); + +  return bytes_copied; +} + +bool Scalar::ExtractBitfield(uint32_t bit_size, uint32_t bit_offset) { +  if (bit_size == 0) +    return true; + +  switch (m_type) { +  case Scalar::e_void: +  case Scalar::e_float: +  case Scalar::e_double: +  case Scalar::e_long_double: +    break; + +  case Scalar::e_sint: +  case Scalar::e_slong: +  case Scalar::e_slonglong: +  case Scalar::e_sint128: +  case Scalar::e_sint256: +  case Scalar::e_sint512: +    m_integer = m_integer.ashr(bit_offset) +                    .sextOrTrunc(bit_size) +                    .sextOrSelf(8 * GetByteSize()); +    return true; + +  case Scalar::e_uint: +  case Scalar::e_ulong: +  case Scalar::e_ulonglong: +  case Scalar::e_uint128: +  case Scalar::e_uint256: +  case Scalar::e_uint512: +    m_integer = m_integer.lshr(bit_offset) +                    .zextOrTrunc(bit_size) +                    .zextOrSelf(8 * GetByteSize()); +    return true; +  } +  return false; +} + +bool lldb_private::operator==(const Scalar &lhs, const Scalar &rhs) { +  // If either entry is void then we can just compare the types +  if (lhs.m_type == Scalar::e_void || rhs.m_type == Scalar::e_void) +    return lhs.m_type == rhs.m_type; + +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  llvm::APFloat::cmpResult result; +  switch (PromoteToMaxType(lhs, rhs, temp_value, a, b)) { +  case Scalar::e_void: +    break; +  case Scalar::e_sint: +  case Scalar::e_uint: +  case Scalar::e_slong: +  case Scalar::e_ulong: +  case Scalar::e_slonglong: +  case Scalar::e_ulonglong: +  case Scalar::e_sint128: +  case Scalar::e_uint128: +  case Scalar::e_sint256: +  case Scalar::e_uint256: +  case Scalar::e_sint512: +  case Scalar::e_uint512: +    return a->m_integer == b->m_integer; +  case Scalar::e_float: +  case Scalar::e_double: +  case Scalar::e_long_double: +    result = a->m_float.compare(b->m_float); +    if (result == llvm::APFloat::cmpEqual) +      return true; +  } +  return false; +} + +bool lldb_private::operator!=(const Scalar &lhs, const Scalar &rhs) { +  return !(lhs == rhs); +} + +bool lldb_private::operator<(const Scalar &lhs, const Scalar &rhs) { +  if (lhs.m_type == Scalar::e_void || rhs.m_type == Scalar::e_void) +    return false; + +  Scalar temp_value; +  const Scalar *a; +  const Scalar *b; +  llvm::APFloat::cmpResult result; +  switch (PromoteToMaxType(lhs, rhs, temp_value, a, b)) { +  case Scalar::e_void: +    break; +  case Scalar::e_sint: +  case Scalar::e_slong: +  case Scalar::e_slonglong: +  case Scalar::e_sint128: +  case Scalar::e_sint256: +  case Scalar::e_sint512: +  case Scalar::e_uint512: +    return a->m_integer.slt(b->m_integer); +  case Scalar::e_uint: +  case Scalar::e_ulong: +  case Scalar::e_ulonglong: +  case Scalar::e_uint128: +  case Scalar::e_uint256: +    return a->m_integer.ult(b->m_integer); +  case Scalar::e_float: +  case Scalar::e_double: +  case Scalar::e_long_double: +    result = a->m_float.compare(b->m_float); +    if (result == llvm::APFloat::cmpLessThan) +      return true; +  } +  return false; +} + +bool lldb_private::operator<=(const Scalar &lhs, const Scalar &rhs) { +  return !(rhs < lhs); +} + +bool lldb_private::operator>(const Scalar &lhs, const Scalar &rhs) { +  return rhs < lhs; +} + +bool lldb_private::operator>=(const Scalar &lhs, const Scalar &rhs) { +  return !(lhs < rhs); +} + +bool Scalar::ClearBit(uint32_t bit) { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    m_integer.clearBit(bit); +    return true; +  case e_float: +  case e_double: +  case e_long_double: +    break; +  } +  return false; +} + +bool Scalar::SetBit(uint32_t bit) { +  switch (m_type) { +  case e_void: +    break; +  case e_sint: +  case e_uint: +  case e_slong: +  case e_ulong: +  case e_slonglong: +  case e_ulonglong: +  case e_sint128: +  case e_uint128: +  case e_sint256: +  case e_uint256: +  case e_sint512: +  case e_uint512: +    m_integer.setBit(bit); +    return true; +  case e_float: +  case e_double: +  case e_long_double: +    break; +  } +  return false; +} + +llvm::raw_ostream &lldb_private::operator<<(llvm::raw_ostream &os, const Scalar &scalar) { +  StreamString s; +  scalar.GetValue(&s, /*show_type*/ true); +  return os << s.GetString(); +}  | 
