//===---------------------------------------------------------------------===//
-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
The ocaml frametable structure supports liveness information. It would be good
to support it.
+
+//===---------------------------------------------------------------------===//
+
+The FIXME in ComputeCommonTailLength in BranchFolding.cpp needs to be
+revisited. The check is there to work around a misuse of directives in inline
+assembly.
+
+//===---------------------------------------------------------------------===//
+
+It would be good to detect collector/target compatibility instead of silently
+doing the wrong thing.
+
+//===---------------------------------------------------------------------===//
+
+It would be really nice to be able to write patterns in .td files for copies,
+which would eliminate a bunch of explicit predicates on them (e.g. no side
+effects). Once this is in place, it would be even better to have tblgen
+synthesize the various copy insertion/inspection methods in TargetInstrInfo.
+
+//===---------------------------------------------------------------------===//