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5494792536
We were incorrectly assuming that all VOP2 instructions can read SGPRs in Src0, but this is not true for instructions that read carry-in from VCC. The old logic has been replaced with new logic which checks the defined register classes of the VOP2 instruction to determine whether or not to legalize the operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214465 91177308-0d34-0410-b5e6-96231b3b80d8
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