Sanjay Patel a2db716bbb [InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
The benefits of this change include:
1. Remove DeMorgan-matching code that was added specifically to work-around 
   the missing transform in http://reviews.llvm.org/rL248634.
2. Makes the DeMorgan transform work for vectors too.
3. Fix PR28476: https://llvm.org/bugs/show_bug.cgi?id=28476

Extending this transform to other casts and other associative operators may
be useful too. See https://reviews.llvm.org/D22421 for a prerequisite for
doing that though.

Differential Revision: https://reviews.llvm.org/D22271



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276221 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-21 00:24:18 +00:00
2016-07-20 22:24:52 +00:00
2016-06-23 22:07:21 +00:00
2016-05-10 16:23:54 +00:00

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