Duncan P. N. Exon Smith 43724649c3 IR: Don't cast the end iterator to Instruction* ...

End iterators are usually sentinels, not actually Instruction* at all.
Stop casting to it just to get an iterator back.

There is likely no observable functionality change here right now
(although this is relying on UB, I doubt it was triggering anything),
but I'll be removing the cast soon.

llvm-svn: 278346

2016-08-11 15:45:04 +00:00

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