26   for (unsigned i = 0; i < Regions.size(); ++i) {  in print()
27     OS << "  " << i << ": [" << Regions[i].Start << ", " << Regions[i].End  in print()
28        << "), range " << Regions[i].Range << "\n";  in print()
51     unsigned LastRegionEnd = Regions.empty() ? 0 : Regions.back().End;  in layoutObject()
54     Regions.emplace_back(Start, End, Obj.Range);  in layoutObject()
65   for (const StackRegion &R : Regions) {  in layoutObject()
87   unsigned LastRegionEnd = Regions.empty() ? 0 : Regions.back().End;  in layoutObject()
93       Regions.emplace_back(LastRegionEnd, Start, StackColoring::LiveRange());  in layoutObject()
98     Regions.emplace_back(LastRegionEnd, End, Obj.Range);  in layoutObject()
103   for (unsigned i = 0; i < Regions.size(); ++i) {  in layoutObject()
104     StackRegion &R = Regions[i];  in layoutObject()
108       Regions.insert(&R, R0);  in layoutObject()
114       Regions.insert(&R, R0);  in layoutObject()
120   for (StackRegion &R : Regions) {  in layoutObject()