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Dan Gohman
6479d0cbb7
Don't copy the operand of a SwitchInst into virtual registers as
eagerly. This helps avoid CopyToReg nodes in some cases where they aren't needed, and also helps subsequent optimizer heuristics in cases where the extra nodes would cause the node to appear to have multiple results. This doesn't have a significant impact currently; it'll help an upcoming change. llvm-svn: 68667
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