[PATCH] [GC] Turn {undef,null} transforms into strategy

[Ramkumar Ramachandra]

I'm just following what I think I understood from your comment: "There might be some weird collector this property does not hold for." -- so, I thought there should be a way to define a custom lowering pass for "relocate undef" or "relocate null" instead of turning them into "undef" and "null" everytime. Did I misunderstand? What are those TODO comments about?

GCStrategy code is invoked on a gc "..." annotation, irrespective of whether it uses the gcroot mechanism, no?


http://reviews.llvm.org/D6837

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