Reid Kleckner 41390b47de Revert r346810 "Preserve loop metadata when splitting exit blocks" ...

It broke the Windows self-host:
http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/1457

llvm-svn: 346823

2018-11-14 01:47:32 +00:00

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2003-04-25-AssertFail.ll

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2003-05-12-PreheaderExitOfChild.ll

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2003-08-15-PreheadersFail.ll

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2003-12-10-ExitBlocksProblem.ll

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2004-02-05-DominatorInfoCorruption.ll

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2004-03-15-IncorrectDomUpdate.ll

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2004-04-01-IncorrectDomUpdate.ll

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2004-04-12-LoopSimplify-SwitchBackedges.ll

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2004-04-13-LoopSimplifyUpdateDomFrontier.ll

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2007-10-28-InvokeCrash.ll

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2010-07-15-IncorrectDomFrontierUpdate.ll

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2010-12-26-PHIInfiniteLoop.ll

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2011-12-14-LandingpadHeader.ll

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2012-03-20-indirectbr.ll

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ashr-crash.ll

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basictest.ll

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dbg-loc.ll

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dup-preds.ll

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hardertest.ll

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indirectbr-backedge.ll

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indirectbr.ll

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merge-exits.ll

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notify-scev.ll

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phi-node-simplify.ll

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pr26682.ll

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pr28272.ll

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pr30454.ll

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pr33494.ll

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preserve-llvm-loop-metadata.ll

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preserve-scev.ll

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single-backedge.ll

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unreachable-loop-pred.ll

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