Sanjay Patel 72428f5e04 [SimplifyCFG] use pass options and remove the latesimplifycfg pass
This is no-functional-change-intended.

This is repackaging the functionality of D30333 (defer switch-to-lookup-tables) and 
D35411 (defer folding unconditional branches) with pass parameters rather than a named
"latesimplifycfg" pass. Now that we have individual options to control the functionality,
we could decouple when these fire (but that's an independent patch if desired). 

The next planned step would be to add another option bit to disable the sinking transform
mentioned in D38566. This should also make it clear that the new pass manager needs to
be updated to limit simplifycfg in the same way as the old pass manager.

Differential Revision: https://reviews.llvm.org/D38631



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316835 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-28 18:43:07 +00:00
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2017-10-25 13:40:08 +00:00
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