//===---------------------------------------------------------------------===//
-Instead of unconditionally inserting a null initializer for every GC root when
-Collector::InitRoots is set, the collector infrastructure should get a little
-bit smarter and perform a trivial DSE of the initial basic block up to the
-first safe point.
-
-//===---------------------------------------------------------------------===//
-
With a copying garbage collector, derived pointers must not be retained across
collector safe points; the collector could move the objects and invalidate the
derived pointer. This is bad enough in the first place, but safe points can