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ece4a53017
Add these transformations to the existing add/sub ones: (and (select cc, -1, c), x) -> (select cc, x, (and, x, c)) (or (select cc, 0, c), x) -> (select cc, x, (or, x, c)) (xor (select cc, 0, c), x) -> (select cc, x, (xor, x, c)) The selects can then be transformed to a single predicated instruction by peephole. This transformation will make it possible to eliminate the ISD::CAND, COR, and CXOR custom DAG nodes. llvm-svn: 162176 |
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