[PATCH] Move easily derivable pointers optimization from CodeGenPrepare to RewriteStatepointPass

[Philip Reames]

I haven't had a chance to review the newly added bits in RewriteStatepointsForGC, but I want to comment on the CGP parts first.  I see no reason to remove this optimization.  If a statepoint is generated through a means other than RSForGC, this optimization is valid and useful.  Please update your patch to leave this code in CGP.

(If you chose to common the code in some way, that's fine.   I don't mean to discourage that.)


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http://reviews.llvm.org/D9774

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