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5273295751
This fixes a bug I introduced in a previous commit (r216033). Sign-/Zero- extension from i1 cannot be folded into the ADDS/SUBS instructions. Instead both operands have to be sign-/zero-extended with separate instructions. Related to <rdar://problem/17913111>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216073 91177308-0d34-0410-b5e6-96231b3b80d8
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