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Author SHA1 Message Date
Duncan Sands
52fb846578 Teach instsimplify that X+Y>=X+Z is the same as Y>=Z if neither side overflows, 
plus some variations of this.  According to my auto-simplifier this occurs a lot
but usually in combination with max/min idioms.  Because max/min aren't handled
yet this unfortunately doesn't have much effect in the testsuite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125462 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-13 17:15:40 +00:00