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739ca842aa
Summary: Even though there is no 2nd register operand in the "lw/sw $8, symbol" case, we still try to find one, and we end up with $0, which makes us generate an unnecessary "addu $8, $8, $0" (a.k.a. "move $8, $8"). We can avoid this by checking if the 2nd register operand is different from $0, before generating the addu. Reviewers: dsanders Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8055 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234406 91177308-0d34-0410-b5e6-96231b3b80d8