[InstCombine] ctpop(rot(X)) -> ctpop(X)
Proof: https://alive2.llvm.org/ce/z/ss2zyt - rotl https://alive2.llvm.org/ce/z/ZM7Aue - rotr Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D101235
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Proof: https://alive2.llvm.org/ce/z/ss2zyt - rotl https://alive2.llvm.org/ce/z/ZM7Aue - rotr Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D101235