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* [SimplifyCFG] Preserve !llvm.mem.parallel_loop_access when mergingHal Finkel2016-04-261-0/+55
When SimplifyCFG merges identical instructions from both sides of a diamond, it can preserve !llvm.mem.parallel_loop_access (as it does with most of the other metadata). There's no real data or control dependency change in this case. llvm-svn: 267515
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