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Author SHA1 Message Date
Nick Lewycky
4333f49afe Reinstate this optimization to fold icmp of xor when possible. Don't try to 
turn icmp eq a+x, b+x into icmp eq a, b if a+x or b+x has other uses. This
may have been increasing register pressure leading to the bzip2 slowdown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63487 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 21:30:05 +00:00