17   auto Range = RangesRef[0];  in isOrderedRanges()  local
18   if (Range.getLower().sge(Range.getUpper()))  in isOrderedRanges()
101   for (auto &Range : Ranges) {  in subtract()  local
102     if (SubRange.getUpper().sle(Range.getLower()) ||  in subtract()
103         Range.getUpper().sle(SubRange.getLower())) {  in subtract()
104       // "Range" and "SubRange" do not overlap.  in subtract()
105       //       L---U        : Range  in subtract()
108       Result.push_back(Range);  in subtract()
109     } else if (Range.getLower().sle(SubRange.getLower()) &&  in subtract()
110                SubRange.getUpper().sle(Range.getUpper())) {  in subtract()
111       // "Range" contains "SubRange".  in subtract()
112       //       L---U        : Range  in subtract()
116       AppendRangeIfNonEmpty(Range.getLower(), SubRange.getLower());  in subtract()
117       AppendRangeIfNonEmpty(SubRange.getUpper(), Range.getUpper());  in subtract()
118     } else if (SubRange.getLower().sle(Range.getLower()) &&  in subtract()
119                Range.getUpper().sle(SubRange.getUpper())) {  in subtract()
120       // "SubRange" contains "Range".  in subtract()
121       //        L-U        : Range  in subtract()
124     } else if (Range.getLower().sge(SubRange.getLower()) &&  in subtract()
125                Range.getLower().sle(SubRange.getUpper())) {  in subtract()
126       // "Range" and "SubRange" overlap at the left.  in subtract()
127       //       L---U        : Range  in subtract()
129       AppendRangeIfNonEmpty(SubRange.getUpper(), Range.getUpper());  in subtract()
131       // "Range" and "SubRange" overlap at the right.  in subtract()
132       //       L---U        : Range  in subtract()
134       assert(SubRange.getLower().sge(Range.getLower()) &&  in subtract()
135              SubRange.getLower().sle(Range.getUpper()));  in subtract()
136       AppendRangeIfNonEmpty(Range.getLower(), SubRange.getLower());  in subtract()
155   // "PreviousRange" tracks the lowest unioned range that is being processed.  in unionWith()
165   // "PreviousRange" to the result and assign it to "CR", a new union range.  in unionWith()
207     auto &Range = this->Ranges[i];  in intersectWith()  local
216     APInt Start = APIntOps::smax(Range.getLower(), OtherRange.getLower());  in intersectWith()
217     APInt End = APIntOps::smin(Range.getUpper(), OtherRange.getUpper());  in intersectWith()
221     // Move to the next Range in one list determined by the uppers.  in intersectWith()
224     if (Range.getUpper().slt(OtherRange.getUpper()))  in intersectWith()