65     public static int indexOf(char[] source, int sourceOffset, int sourceCount,
  66                     @ConstantNodeParameter char[] target, int targetOffset, int targetCount,
  67                     int origFromIndex) {
  68         int fromIndex = origFromIndex;
  69         if (fromIndex >= sourceCount) {
  70             return (targetCount == 0 ? sourceCount : -1);
  71         }
  72         if (fromIndex < 0) {
  73             fromIndex = 0;
  74         }
  75         if (targetCount == 0) {
  76             // The empty string is in every string.
  77             return fromIndex;
  78         }
  79 
  80         int totalOffset = sourceOffset + fromIndex;
  81         if (sourceCount - fromIndex < targetCount) {
  82             // The empty string contains nothing except the empty string.
  83             return -1;
  84         }
  85         assert sourceCount - fromIndex > 0 && targetCount > 0;
  86 
  87         if (targetCount == 1) {
  88             Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
  89             int indexOfResult = AMD64ArrayIndexOf.indexOf1Char(sourcePointer, sourceCount - fromIndex, target[targetOffset]);
  90             if (indexOfResult >= 0) {
  91                 return indexOfResult + totalOffset;
  92             }
  93             return indexOfResult;
  94         } else if (targetCount == 2) {
  95             Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
  96             int indexOfResult = AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(sourcePointer, sourceCount - fromIndex, target[targetOffset], target[targetOffset + 1]);
  97             if (indexOfResult >= 0) {
  98                 return indexOfResult + totalOffset;
  99             }
 100             return indexOfResult;
 101         } else {
 102             int haystackLength = sourceCount - (fromIndex + (targetCount - 2));
 103             while (haystackLength > 0) {
 104                 Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
 105                 int indexOfResult = AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(sourcePointer, haystackLength, target[targetOffset], target[targetOffset + 1]);

  65     public static int indexOf(char[] source, int sourceOffset, int sourceCount,
  66                     @ConstantNodeParameter char[] target, int targetOffset, int targetCount,
  67                     int origFromIndex) {
  68         int fromIndex = origFromIndex;
  69         if (fromIndex >= sourceCount) {
  70             return (targetCount == 0 ? sourceCount : -1);
  71         }
  72         if (fromIndex < 0) {
  73             fromIndex = 0;
  74         }
  75         if (targetCount == 0) {
  76             // The empty string is in every string.
  77             return fromIndex;
  78         }
  79 
  80         int totalOffset = sourceOffset + fromIndex;
  81         if (sourceCount - fromIndex < targetCount) {
  82             // The empty string contains nothing except the empty string.
  83             return -1;
  84         }

  85 
  86         if (targetCount == 1) {
  87             Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
  88             int indexOfResult = AMD64ArrayIndexOf.indexOf1Char(sourcePointer, sourceCount - fromIndex, target[targetOffset]);
  89             if (indexOfResult >= 0) {
  90                 return indexOfResult + totalOffset;
  91             }
  92             return indexOfResult;
  93         } else if (targetCount == 2) {
  94             Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
  95             int indexOfResult = AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(sourcePointer, sourceCount - fromIndex, target[targetOffset], target[targetOffset + 1]);
  96             if (indexOfResult >= 0) {
  97                 return indexOfResult + totalOffset;
  98             }
  99             return indexOfResult;
 100         } else {
 101             int haystackLength = sourceCount - (fromIndex + (targetCount - 2));
 102             while (haystackLength > 0) {
 103                 Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
 104                 int indexOfResult = AMD64ArrayIndexOf.indexOfTwoConsecutiveChars(sourcePointer, haystackLength, target[targetOffset], target[targetOffset + 1]);