Sanjay Patel f527637432 [InstSimplify] handle all icmp i1 X, C in one place; NFCI
We already handled all of the new tests identically, but several
of those went through a lot of unnecessary processing before
getting folded.

Another motivation for grouping these cases together is that
InstCombine needs a similar fold. Currently, it handles the
'not' cases inefficiently which can lead to bugs as described
in the post-commit comments of:
https://reviews.llvm.org/D32143 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303295 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-17 20:27:55 +00:00
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2016-01-26 21:29:08 +00:00
2017-05-14 07:55:01 +00:00
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Low Level Virtual Machine (LLVM)
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