Dan Gohman fbffe63528 Make Loop::getLoopLatch() work on loops which don't have preheaders, as ...

it may be used in contexts where preheader insertion may have failed due
to an indirectbr.

Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.

These fix PR5502.

llvm-svn: 89484

2009-11-20 20:51:18 +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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basictest.ll

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dg.exp

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hardertest.ll

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indirectbr.ll

Make Loop::getLoopLatch() work on loops which don't have preheaders, as

2009-11-20 20:51:18 +00:00

merge-exits.ll

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phi-node-simplify.ll

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single-backedge.ll

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unreachable-loop-pred.ll

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