Fix usage of APInt.getRawData for big-endian systems

Recommit modified version of r266311 including build bot regression fix.

This differs from the original r266311 by:

- Fixing Scalar::Promote to correctly zero- or sign-extend value depending
  on signedness of the *source* type, not the target type.

- Omitting a few stand-alone fixes that were already committed separately.

llvm-svn: 266422
diff --git a/lldb/source/Core/Scalar.cpp b/lldb/source/Core/Scalar.cpp
index 78c1633..a45424d 100644
--- a/lldb/source/Core/Scalar.cpp
+++ b/lldb/source/Core/Scalar.cpp
@@ -16,6 +16,8 @@
 #include <cstdio>
 
 // Other libraries and framework includes
+#include "llvm/ADT/SmallString.h"
+
 // Project includes
 #include "lldb/Interpreter/Args.h"
 #include "lldb/Core/Error.h"
@@ -134,10 +136,10 @@
 Scalar::GetData (DataExtractor &data, size_t limit_byte_size) const
 {
     size_t byte_size = GetByteSize();
-    static float f_val;
-    static double d_val;
     if (byte_size > 0)
     {
+        const uint8_t *bytes = reinterpret_cast<const uint8_t *>(GetBytes());
+
         if (limit_byte_size < byte_size)
         {
             if (endian::InlHostByteOrder() == eByteOrderLittle)
@@ -145,105 +147,19 @@
                 // On little endian systems if we want fewer bytes from the
                 // current type we just specify fewer bytes since the LSByte
                 // is first...
-                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:
-                    data.SetData((const uint8_t *)m_integer.getRawData(), limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                case e_float:
-                    f_val = m_float.convertToFloat();
-                    data.SetData((uint8_t *)&f_val, limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                case e_double:
-                    d_val = m_float.convertToDouble();
-                    data.SetData((uint8_t *)&d_val, limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                case e_long_double:
-                    static llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-                    data.SetData((const uint8_t *)ldbl_val.getRawData(), limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                }
+                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
-                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:
-                    data.SetData((const uint8_t *)m_integer.getRawData() + byte_size - limit_byte_size, limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                case e_float:
-                    f_val = m_float.convertToFloat();
-                    data.SetData((uint8_t *)&f_val + byte_size - limit_byte_size, limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                case e_double:
-                    d_val = m_float.convertToDouble();
-                    data.SetData((uint8_t *)&d_val + byte_size - limit_byte_size, limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                case e_long_double:
-                    static llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-                    data.SetData((const uint8_t *)ldbl_val.getRawData() + byte_size - limit_byte_size, limit_byte_size, endian::InlHostByteOrder());
-                    return true;
-                }
+                bytes += byte_size - limit_byte_size;
+                byte_size = limit_byte_size;
             }
         }
-        else
-        {
-            // We want all of the data
-            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:
-                data.SetData((const uint8_t *)m_integer.getRawData(), byte_size, endian::InlHostByteOrder());
-                return true;
-            case e_float:
-                f_val = m_float.convertToFloat();
-                data.SetData((uint8_t *)&f_val, byte_size, endian::InlHostByteOrder());
-                return true;
-            case e_double:
-                d_val = m_float.convertToDouble();
-                data.SetData((uint8_t *)&d_val, byte_size, endian::InlHostByteOrder());
-                return true;
-            case e_long_double:
-                static llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-                data.SetData((const uint8_t *)ldbl_val.getRawData(), byte_size, endian::InlHostByteOrder());
-                return true;
-            }
-        }
+
+        data.SetData(bytes, byte_size, endian::InlHostByteOrder());
         return true;
     }
     data.Clear();
@@ -253,8 +169,11 @@
 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[4];
     switch (m_type)
     {
     case e_void:
@@ -265,11 +184,44 @@
     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;
     case e_sint128:
     case e_uint128:
+        apint_words = m_integer.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);
     case e_sint256:
     case e_uint256:
-        return reinterpret_cast<const void *>(m_integer.getRawData());
+        apint_words = m_integer.getRawData();
+        // getRawData always returns a pointer to an array of four uint64_t values,
+        // where the least-significant word always comes first.  On big-endian
+        // systems we need to swap the four words.
+        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_float:
         flt_val = m_float.convertToFloat();
         return reinterpret_cast<const void *>(&flt_val);
@@ -278,7 +230,17 @@
         return reinterpret_cast<const void *>(&dbl_val);
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return reinterpret_cast<const void *>(ldbl_val.getRawData());
+        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;
 }
@@ -338,7 +300,6 @@
 void
 Scalar::GetValue (Stream *s, bool show_type) const
 {
-    const uint64_t *src;
     if (show_type)
         s->Printf("(%s) ", GetTypeAsCString());
 
@@ -346,28 +307,26 @@
     {
     case e_void:
         break;
-    case e_sint:        s->Printf("%i", *(const sint_t *) m_integer.getRawData());                        break;
-    case e_uint:        s->Printf("0x%8.8x", *(const uint_t *) m_integer.getRawData());           break;
-    case e_slong:       s->Printf("%li", *(const slong_t *) m_integer.getRawData());                       break;
-    case e_ulong:       s->Printf("0x%8.8lx", *(const ulong_t *) m_integer.getRawData());         break;
-    case e_slonglong:   s->Printf("%lli", *(const slonglong_t *) m_integer.getRawData());                  break;
-    case e_ulonglong:   s->Printf("0x%16.16llx", *(const ulonglong_t *) m_integer.getRawData()); break;
+    case e_sint:
+    case e_ulong:
+    case e_slonglong:
     case e_sint128:
     case e_sint256:
         s->Printf("%s",m_integer.toString(10,true).c_str());
         break;
+    case e_uint:
+    case e_slong:
+    case e_ulonglong:
     case e_uint128:
-        src = m_integer.getRawData();
-        s->Printf("0x%16.16llx%16.16llx", *(const ulonglong_t *)src, *(const ulonglong_t *)(src + 1));
-        break;
     case e_uint256:
         s->Printf("%s",m_integer.toString(16,false).c_str());
         break;
-    case e_float:       s->Printf("%f", m_float.convertToFloat());                break;
-    case e_double:      s->Printf("%g", m_float.convertToDouble());                break;
+    case e_float:
+    case e_double:
     case e_long_double:
-        llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        s->Printf("%Lg", *(const long_double_t *)ldbl_val.getRawData());
+        llvm::SmallString<24> string;
+        m_float.toString(string);
+        s->Printf("%s", string.c_str());
         break;
     }
 }
@@ -535,39 +494,39 @@
             case e_void: break;
             case e_sint: success = true; break;
             case e_uint:
-                m_integer = llvm::APInt(sizeof(uint_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                m_integer = m_integer.sextOrTrunc(sizeof(uint_t) * 8);
                 success = true;
                 break;
 
             case e_slong:
-                m_integer = llvm::APInt(sizeof(slong_t) * 8, *(const uint64_t *)m_integer.getRawData(), true);
+                m_integer = m_integer.sextOrTrunc(sizeof(slong_t) * 8);
                 success = true;
                 break;
 
             case e_ulong:
-                m_integer = llvm::APInt(sizeof(ulong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                m_integer = m_integer.sextOrTrunc(sizeof(ulong_t) * 8);
                 success = true;
                 break;
 
             case e_slonglong:
-                m_integer = llvm::APInt(sizeof(slonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), true);
+                m_integer = m_integer.sextOrTrunc(sizeof(slonglong_t) * 8);
                 success = true;
                 break;
 
             case e_ulonglong:
-                m_integer = llvm::APInt(sizeof(ulonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                m_integer = m_integer.sextOrTrunc(sizeof(ulonglong_t) * 8);
                 success = true;
                 break;
 
             case e_sint128:
             case e_uint128:
-                m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128);
                 success = true;
                 break;
 
             case e_sint256:
             case e_uint256:
-                m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256);
                 success = true;
                 break;
 
@@ -598,34 +557,34 @@
              case e_sint:     break;
              case e_uint:     success = true; break;
              case e_slong:
-                 m_integer = llvm::APInt(sizeof(slong_t) * 8, *(const uint64_t *)m_integer.getRawData(), true);
+                 m_integer = m_integer.zextOrTrunc(sizeof(slong_t) * 8);
                  success = true;
                  break;
 
              case e_ulong:
-                 m_integer = llvm::APInt(sizeof(ulong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                 m_integer = m_integer.zextOrTrunc(sizeof(ulong_t) * 8);
                  success = true;
                  break;
 
              case e_slonglong:
-                 m_integer = llvm::APInt(sizeof(slonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), true);
+                 m_integer = m_integer.zextOrTrunc(sizeof(slonglong_t) * 8);
                  success = true;
                  break;
 
              case e_ulonglong:
-                 m_integer = llvm::APInt(sizeof(ulonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                 m_integer = m_integer.zextOrTrunc(sizeof(ulonglong_t) * 8);
                  success = true;
                  break;
 
              case e_sint128:
              case e_uint128:
-                 m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                 m_integer = m_integer.zextOrTrunc(BITWIDTH_INT128);
                  success = true;
                  break;
 
             case e_sint256:
             case e_uint256:
-                m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256);
                 success = true;
                 break;
 
@@ -657,29 +616,29 @@
              case e_uint:    break;
              case e_slong:   success = true; break;
              case e_ulong:
-                 m_integer = llvm::APInt(sizeof(ulong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                 m_integer = m_integer.sextOrTrunc(sizeof(ulong_t) * 8);
                  success = true;
                  break;
 
              case e_slonglong:
-                 m_integer = llvm::APInt(sizeof(slonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), true);
+                 m_integer = m_integer.sextOrTrunc(sizeof(slonglong_t) * 8);
                  success = true;
                  break;
 
              case e_ulonglong:
-                 m_integer = llvm::APInt(sizeof(ulonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                 m_integer = m_integer.sextOrTrunc(sizeof(ulonglong_t) * 8);
                  success = true;
                  break;
 
              case e_sint128:
              case e_uint128:
-                 m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                 m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128);
                  success = true;
                  break;
 
              case e_sint256:
              case e_uint256:
-                 m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                 m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256);
                  success = true;
                  break;
 
@@ -712,24 +671,24 @@
              case e_slong:    break;
              case e_ulong:    success = true; break;
              case e_slonglong:
-                 m_integer = llvm::APInt(sizeof(slonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), true);
+                 m_integer = m_integer.zextOrTrunc(sizeof(slonglong_t) * 8);
                  success = true;
                  break;
 
              case e_ulonglong:
-                 m_integer = llvm::APInt(sizeof(ulonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                 m_integer = m_integer.zextOrTrunc(sizeof(ulonglong_t) * 8);
                  success = true;
                  break;
 
              case e_sint128:
              case e_uint128:
-                 m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                 m_integer = m_integer.zextOrTrunc(BITWIDTH_INT128);
                  success = true;
                  break;
 
              case e_sint256:
              case e_uint256:
-                 m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                 m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256);
                  success = true;
                  break;
 
@@ -763,19 +722,19 @@
              case e_ulong:        break;
              case e_slonglong:    success = true; break;
              case e_ulonglong:
-                 m_integer = llvm::APInt(sizeof(ulonglong_t) * 8, *(const uint64_t *)m_integer.getRawData(), false);
+                 m_integer = m_integer.sextOrTrunc(sizeof(ulonglong_t) * 8);
                  success = true;
                  break;
 
              case e_sint128:
              case e_uint128:
-                 m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                 m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128);
                  success = true;
                  break;
 
              case e_sint256:
              case e_uint256:
-                 m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                 m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256);
                  success = true;
                  break;
 
@@ -811,13 +770,13 @@
              case e_ulonglong:    success = true; break;
              case e_sint128:
              case e_uint128:
-                 m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                 m_integer = m_integer.zextOrTrunc(BITWIDTH_INT128);
                  success = true;
                  break;
 
              case e_sint256:
              case e_uint256:
-                 m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                 m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256);
                  success = true;
                  break;
 
@@ -853,13 +812,13 @@
              case e_ulonglong:   break;
              case e_sint128:     success = true; break;
              case e_uint128:
-                 m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                 m_integer = m_integer.sextOrTrunc(BITWIDTH_INT128);
                  success = true;
                  break;
 
              case e_sint256:
              case e_uint256:
-                 m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                 m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256);
                  success = true;
                  break;
 
@@ -897,7 +856,7 @@
              case e_uint128:    success = true; break;
              case e_sint256:
              case e_uint256:
-                 m_integer = llvm::APInt(BITWIDTH_INT256, NUM_OF_WORDS_INT256, ((const type256 *)m_integer.getRawData()));
+                 m_integer = m_integer.zextOrTrunc(BITWIDTH_INT256);
                  success = true;
                  break;
 
@@ -935,7 +894,7 @@
             case e_uint128: break;
             case e_sint256: success = true; break;
             case e_uint256:
-                m_integer = llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((const type128 *)m_integer.getRawData()));
+                m_integer = m_integer.sextOrTrunc(BITWIDTH_INT256);
                 success = true;
                 break;
 
@@ -1380,6 +1339,32 @@
     return success;
 }
 
+bool
+Scalar::MakeUnsigned ()
+{
+    bool success = false;
+
+    switch (m_type)
+    {
+    case e_void:                                break;
+    case e_sint:                                success = true; break;
+    case e_uint:        m_type = e_uint;        success = true; break;
+    case e_slong:                               success = true; break;
+    case e_ulong:       m_type = e_ulong;       success = true; break;
+    case e_slonglong:                           success = true; break;
+    case e_ulonglong:   m_type = e_ulonglong;   success = true; break;
+    case e_sint128:                             success = true; break;
+    case e_uint128:     m_type = e_uint128;     success = true; break;
+    case e_sint256:                             success = true; break;
+    case e_uint256:     m_type = e_uint256;     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
 {
@@ -1396,14 +1381,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const schar_t *)(m_integer.sextOrTrunc(sizeof(schar_t) * 8)).getRawData();
+        return (schar_t)(m_integer.sextOrTrunc(sizeof(schar_t) * 8)).getSExtValue();
     case e_float:
         return (schar_t)m_float.convertToFloat();
     case e_double:
         return (schar_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return (schar_t)*ldbl_val.getRawData();
+        return (schar_t)(ldbl_val.sextOrTrunc(sizeof(schar_t) * 8)).getSExtValue();
     }
     return fail_value;
 }
@@ -1424,14 +1409,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const uchar_t *)m_integer.getRawData();
+        return (uchar_t)(m_integer.zextOrTrunc(sizeof(uchar_t) * 8)).getZExtValue();
     case e_float:
         return (uchar_t)m_float.convertToFloat();
     case e_double:
         return (uchar_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return (uchar_t)*ldbl_val.getRawData();
+        return (uchar_t)(ldbl_val.zextOrTrunc(sizeof(uchar_t) * 8)).getZExtValue();
     }
     return fail_value;
 }
@@ -1452,14 +1437,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const sshort_t *)(m_integer.sextOrTrunc(sizeof(sshort_t) * 8)).getRawData();
+        return (sshort_t)(m_integer.sextOrTrunc(sizeof(sshort_t) * 8)).getSExtValue();
     case e_float:
         return (sshort_t)m_float.convertToFloat();
     case e_double:
         return (sshort_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const sshort_t *)ldbl_val.getRawData();
+        return (sshort_t)(ldbl_val.sextOrTrunc(sizeof(sshort_t) * 8)).getSExtValue();
     }
     return fail_value;
 }
@@ -1480,14 +1465,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const ushort_t *)m_integer.getRawData();
+        return (ushort_t)(m_integer.zextOrTrunc(sizeof(ushort_t) * 8)).getZExtValue();
     case e_float:
         return (ushort_t)m_float.convertToFloat();
     case e_double:
         return (ushort_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const ushort_t *)ldbl_val.getRawData();;
+        return (ushort_t)(ldbl_val.zextOrTrunc(sizeof(ushort_t) * 8)).getZExtValue();
     }
     return fail_value;
 }
@@ -1508,14 +1493,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const sint_t *)(m_integer.sextOrTrunc(sizeof(sint_t) * 8)).getRawData();
+        return (sint_t)(m_integer.sextOrTrunc(sizeof(sint_t) * 8)).getSExtValue();
     case e_float:
         return (sint_t)m_float.convertToFloat();
     case e_double:
         return (sint_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const sint_t *)ldbl_val.getRawData();
+        return (sint_t)(ldbl_val.sextOrTrunc(sizeof(sint_t) * 8)).getSExtValue();
     }
     return fail_value;
 }
@@ -1536,14 +1521,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const uint_t *)m_integer.getRawData();
+        return (uint_t)(m_integer.zextOrTrunc(sizeof(uint_t) * 8)).getZExtValue();
     case e_float:
         return (uint_t)m_float.convertToFloat();
     case e_double:
         return (uint_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const uint_t *)ldbl_val.getRawData();
+        return (uint_t)(ldbl_val.zextOrTrunc(sizeof(uint_t) * 8)).getZExtValue();
     }
     return fail_value;
 }
@@ -1564,14 +1549,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const slong_t *)(m_integer.sextOrTrunc(sizeof(slong_t) * 8)).getRawData();
+        return (slong_t)(m_integer.sextOrTrunc(sizeof(slong_t) * 8)).getSExtValue();
     case e_float:
         return (slong_t)m_float.convertToFloat();
     case e_double:
         return (slong_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const slong_t *)ldbl_val.getRawData();
+        return (slong_t)(ldbl_val.sextOrTrunc(sizeof(slong_t) * 8)).getSExtValue();
     }
     return fail_value;
 }
@@ -1592,44 +1577,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const ulong_t *)m_integer.getRawData();
+        return (ulong_t)(m_integer.zextOrTrunc(sizeof(ulong_t) * 8)).getZExtValue();
     case e_float:
         return (ulong_t)m_float.convertToFloat();
     case e_double:
         return (ulong_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const ulong_t *)ldbl_val.getRawData();
-    }
-    return fail_value;
-}
-
-uint64_t
-Scalar::GetRawBits64(uint64_t 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:
-        return *m_integer.getRawData();
-    case e_float:
-        return (uint64_t)m_float.convertToFloat();
-    case e_double:
-        return (uint64_t)m_float.convertToDouble();
-    case e_long_double:
-        llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *ldbl_val.getRawData();
+        return (ulong_t)(ldbl_val.zextOrTrunc(sizeof(ulong_t) * 8)).getZExtValue();
     }
     return fail_value;
 }
@@ -1650,14 +1605,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const slonglong_t *)(m_integer.sextOrTrunc(sizeof(slonglong_t) * 8)).getRawData();
+        return (slonglong_t)(m_integer.sextOrTrunc(sizeof(slonglong_t) * 8)).getSExtValue();
     case e_float:
         return (slonglong_t)m_float.convertToFloat();
     case e_double:
         return (slonglong_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const slonglong_t *)ldbl_val.getRawData();
+        return (slonglong_t)(ldbl_val.sextOrTrunc(sizeof(slonglong_t) * 8)).getSExtValue();
     }
     return fail_value;
 }
@@ -1678,14 +1633,14 @@
     case e_uint128:
     case e_sint256:
     case e_uint256:
-        return *(const ulonglong_t *)m_integer.getRawData();
+        return (ulonglong_t)(m_integer.zextOrTrunc(sizeof(ulonglong_t) * 8)).getZExtValue();
     case e_float:
         return (ulonglong_t)m_float.convertToFloat();
     case e_double:
         return (ulonglong_t)m_float.convertToDouble();
     case e_long_double:
         llvm::APInt ldbl_val = m_float.bitcastToAPInt();
-        return *(const ulonglong_t *)ldbl_val.getRawData();
+        return (ulonglong_t)(ldbl_val.zextOrTrunc(sizeof(ulonglong_t) * 8)).getZExtValue();
     }
     return fail_value;
 }
@@ -1948,7 +1903,7 @@
              case e_uint128:
              case e_sint256:
              case e_uint256:
-                 m_integer <<= *rhs.m_integer.getRawData();
+                 m_integer = m_integer << rhs.m_integer;
                  break;
         }
         break;
@@ -1996,7 +1951,8 @@
         case e_uint128:
         case e_sint256:
         case e_uint256:
-            m_integer = m_integer.lshr(*(const uint_t *) rhs.m_integer.getRawData());   break;
+            m_integer = m_integer.lshr(rhs.m_integer);
+            break;
         }
         break;
     }
@@ -2043,7 +1999,7 @@
         case e_uint128:
         case e_sint256:
         case e_uint256:
-            m_integer = m_integer.ashr(*(const uint_t *)rhs.m_integer.getRawData());
+            m_integer = m_integer.ashr(rhs.m_integer);
             break;
         }
         break;
@@ -2258,18 +2214,24 @@
         {
         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:
+            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:
             if (b->m_integer != 0)
             {
-                result.m_integer = *a->m_integer.getRawData() / *b->m_integer.getRawData();
+                result.m_integer = a->m_integer.udiv(b->m_integer);
                 return result;
             }
             break;
@@ -2405,18 +2367,23 @@
         default:                    break;
              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:
+                 if (b->m_integer != 0)
+                 {
+                     result.m_integer = a->m_integer.srem(b->m_integer);
+                     return result;
+                 }
+             case Scalar::e_uint:
+             case Scalar::e_ulong:
+             case Scalar::e_ulonglong:
+             case Scalar::e_uint128:
              case Scalar::e_uint256:
                  if (b->m_integer != 0)
                  {
-                     result.m_integer = *a->m_integer.getRawData() % *b->m_integer.getRawData();
+                     result.m_integer = a->m_integer.urem(b->m_integer);
                      return result;
                  }
                  break;
@@ -2477,27 +2444,6 @@
     return result;
 }
 
-// Return the raw unsigned integer without any casting or conversion
-unsigned int
-Scalar::RawUInt () const
-{
-    return *(const uint_t *) m_integer.getRawData();
-}
-
-// Return the raw unsigned long without any casting or conversion
-unsigned long
-Scalar::RawULong () const
-{
-    return *(const ulong_t *) m_integer.getRawData();
-}
-
-// Return the raw unsigned long long without any casting or conversion
-unsigned long long
-Scalar::RawULongLong () const
-{
-    return *(const ulonglong_t *) m_integer.getRawData();
-}
-
 Error
 Scalar::SetValueFromCString (const char *value_str, Encoding encoding, size_t byte_size)
 {
@@ -2828,37 +2774,20 @@
     if (bit_size == 0)
         return true;
 
-    uint32_t msbit = bit_offset + bit_size - 1;
-    uint32_t lsbit = bit_offset;
-    uint64_t result;
     switch (m_type)
     {
         case Scalar::e_void:
+        case Scalar::e_float:
+        case Scalar::e_double:
+        case Scalar::e_long_double:
             break;
             
-        case e_float:
-            result = SignedBits ((uint64_t )m_float.convertToFloat(), msbit, lsbit);
-            m_float = llvm::APFloat((float_t)result);
-            return true;
-        case e_double:
-            result = SignedBits ((uint64_t )m_float.convertToDouble(), msbit, lsbit);
-            m_float = llvm::APFloat((double_t)result);
-            return true;
-        case e_long_double:
-            m_integer = m_float.bitcastToAPInt();
-            result = SignedBits (*m_integer.getRawData(), msbit, lsbit);
-            if(m_ieee_quad)
-                m_float = llvm::APFloat(llvm::APFloat::IEEEquad, llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((type128 *)&result)->x));
-            else
-                m_float = llvm::APFloat(llvm::APFloat::x87DoubleExtended, llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((type128 *)&result)->x));
-            return true;
-            
         case Scalar::e_sint:
         case Scalar::e_slong:
         case Scalar::e_slonglong:
         case Scalar::e_sint128:
         case Scalar::e_sint256:
-            m_integer = SignedBits (*m_integer.getRawData(), msbit, lsbit);
+            m_integer = m_integer.ashr(bit_offset).trunc(bit_size).sext(8 * GetByteSize());
             return true;
 
         case Scalar::e_uint:
@@ -2866,7 +2795,7 @@
         case Scalar::e_ulonglong:
         case Scalar::e_uint128:
         case Scalar::e_uint256:
-            m_integer = UnsignedBits (*m_integer.getRawData(), msbit, lsbit);
+            m_integer = m_integer.lshr(bit_offset).trunc(bit_size).zext(8 * GetByteSize());
             return true;
     }
     return false;
diff --git a/lldb/source/Expression/IRInterpreter.cpp b/lldb/source/Expression/IRInterpreter.cpp
index a0d7a16..2871a06 100644
--- a/lldb/source/Expression/IRInterpreter.cpp
+++ b/lldb/source/Expression/IRInterpreter.cpp
@@ -231,7 +231,7 @@
 
         lldb_private::Scalar cast_scalar;
 
-        if (!AssignToMatchType(cast_scalar, scalar.GetRawBits64(0), value->getType()))
+        if (!AssignToMatchType(cast_scalar, scalar.ULongLong(), value->getType()))
             return false;
 
         size_t value_byte_size = m_target_data.getTypeStoreSize(value->getType());
@@ -373,19 +373,18 @@
         if (!ResolveConstantValue(resolved_value, constant))
             return false;
 
-        lldb_private::StreamString buffer (lldb_private::Stream::eBinary,
-                                           m_execution_unit.GetAddressByteSize(),
-                                           m_execution_unit.GetByteOrder());
-
         size_t constant_size = m_target_data.getTypeStoreSize(constant->getType());
+        lldb_private::DataBufferHeap buf(constant_size, 0);
 
-        const uint64_t *raw_data = resolved_value.getRawData();
+        lldb_private::Error get_data_error;
 
-        buffer.PutRawBytes(raw_data, constant_size, lldb_private::endian::InlHostByteOrder());
+        lldb_private::Scalar resolved_scalar(resolved_value.zextOrTrunc(llvm::NextPowerOf2(constant_size) * 8));
+        if (!resolved_scalar.GetAsMemoryData(buf.GetBytes(), buf.GetByteSize(), m_byte_order, get_data_error))
+            return false;
 
         lldb_private::Error write_error;
 
-        m_execution_unit.WriteMemory(process_address, (const uint8_t*)buffer.GetData(), constant_size, write_error);
+        m_execution_unit.WriteMemory(process_address, buf.GetBytes(), buf.GetByteSize(), write_error);
 
         return write_error.Success();
     }
@@ -819,7 +818,9 @@
                         result = L / R;
                         break;
                     case Instruction::UDiv:
-                        result = L.GetRawBits64(0) / R.GetRawBits64(1);
+                        L.MakeUnsigned();
+                        R.MakeUnsigned();
+                        result = L / R;
                         break;
                     case Instruction::SRem:
                         L.MakeSigned();
@@ -827,7 +828,9 @@
                         result = L % R;
                         break;
                     case Instruction::URem:
-                        result = L.GetRawBits64(0) % R.GetRawBits64(1);
+                        L.MakeUnsigned();
+                        R.MakeUnsigned();
+                        result = L % R;
                         break;
                     case Instruction::Shl:
                         result = L << R;
@@ -1030,7 +1033,7 @@
                         return false;
                     }
 
-                    if (C.GetRawBits64(0))
+                    if (!C.IsZero())
                         frame.Jump(br_inst->getSuccessor(0));
                     else
                         frame.Jump(br_inst->getSuccessor(1));
@@ -1181,16 +1184,24 @@
                         result = (L != R);
                         break;
                     case CmpInst::ICMP_UGT:
-                        result = (L.GetRawBits64(0) > R.GetRawBits64(0));
+                        L.MakeUnsigned();
+                        R.MakeUnsigned();
+                        result = (L > R);
                         break;
                     case CmpInst::ICMP_UGE:
-                        result = (L.GetRawBits64(0) >= R.GetRawBits64(0));
+                        L.MakeUnsigned();
+                        R.MakeUnsigned();
+                        result = (L >= R);
                         break;
                     case CmpInst::ICMP_ULT:
-                        result = (L.GetRawBits64(0) < R.GetRawBits64(0));
+                        L.MakeUnsigned();
+                        R.MakeUnsigned();
+                        result = (L < R);
                         break;
                     case CmpInst::ICMP_ULE:
-                        result = (L.GetRawBits64(0) <= R.GetRawBits64(0));
+                        L.MakeUnsigned();
+                        R.MakeUnsigned();
+                        result = (L <= R);
                         break;
                     case CmpInst::ICMP_SGT:
                         L.MakeSigned();
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp b/lldb/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp
index 62aa5b7..12ba7e3 100644
--- a/lldb/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp
+++ b/lldb/source/Plugins/ExpressionParser/Clang/IRForTarget.cpp
@@ -1105,7 +1105,13 @@
 
     if (ConstantInt *int_initializer = dyn_cast<ConstantInt>(initializer))
     {
-        memcpy (data, int_initializer->getValue().getRawData(), m_target_data->getTypeStoreSize(initializer_type));
+        size_t constant_size = m_target_data->getTypeStoreSize(initializer_type);
+        lldb_private::Scalar scalar = int_initializer->getValue().zextOrTrunc(llvm::NextPowerOf2(constant_size) * 8);
+
+        lldb_private::Error get_data_error;
+        if (!scalar.GetAsMemoryData(data, constant_size, lldb_private::endian::InlHostByteOrder(), get_data_error))
+            return false;
+
         return true;
     }
     else if (ConstantDataArray *array_initializer = dyn_cast<ConstantDataArray>(initializer))
diff --git a/lldb/source/Symbol/ClangASTContext.cpp b/lldb/source/Symbol/ClangASTContext.cpp
index aab4593..1723c20 100644
--- a/lldb/source/Symbol/ClangASTContext.cpp
+++ b/lldb/source/Symbol/ClangASTContext.cpp
@@ -72,6 +72,7 @@
 #include "lldb/Core/Module.h"
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/RegularExpression.h"
+#include "lldb/Core/Scalar.h"
 #include "lldb/Core/StreamFile.h"
 #include "lldb/Core/ThreadSafeDenseMap.h"
 #include "lldb/Core/UniqueCStringMap.h"
@@ -8667,18 +8668,10 @@
             const uint64_t byte_size = bit_size / 8;
             if (dst_size >= byte_size)
             {
-                if (bit_size == sizeof(float)*8)
-                {
-                    float float32 = ap_float.convertToFloat();
-                    ::memcpy (dst, &float32, byte_size);
+                Scalar scalar = ap_float.bitcastToAPInt().zextOrTrunc(llvm::NextPowerOf2(byte_size) * 8);
+                lldb_private::Error get_data_error;
+                if (scalar.GetAsMemoryData(dst, byte_size, lldb_private::endian::InlHostByteOrder(), get_data_error))
                     return byte_size;
-                }
-                else if (bit_size >= 64)
-                {
-                    llvm::APInt ap_int(ap_float.bitcastToAPInt());
-                    ::memcpy (dst, ap_int.getRawData(), byte_size);
-                    return byte_size;
-                }
             }
         }
     }