simplify (x+c)^signbit as (x+c+signbit), pointed out by PR1288.  This implements
test/Transforms/InstCombine/xor.ll:test28


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35584 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed