[InstCombine] canonicalize* LE/GE vector integer comparisons to LT/GT (PR26701, PR26819)
*We don't currently handle the edge case constants (min/max values), so it's not a complete
canonicalization.
To fully solve the motivating bugs, we need to enhance this to recognize a zero vector
too because that's a ConstantAggregateZero which is a ConstantData, not a ConstantVector
or a ConstantDataVector.
Differential Revision: http://reviews.llvm.org/D17859
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269426
91177308-0d34-0410-b5e6-
96231b3b80d8
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