| Index: runtime/vm/zone.cc | 
| =================================================================== | 
| --- runtime/vm/zone.cc	(revision 42786) | 
| +++ runtime/vm/zone.cc	(working copy) | 
| @@ -63,6 +63,7 @@ | 
| Zone::Segment* Zone::Segment::New(intptr_t size, Zone::Segment* next) { | 
| ASSERT(size >= 0); | 
| Segment* result = reinterpret_cast<Segment*>(new uint8_t[size]); | 
| +  ASSERT(Utils::IsAligned(result->start(), Zone::kAlignment)); | 
| if (result != NULL) { | 
| #ifdef DEBUG | 
| // Zap the entire allocated segment (including the header). | 
|  |