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PR middle-end/62263 PR middle-end/82498 * tree-ssa-forwprop.c (simplify_rotate): Allow def_arg1[N] to be any operand_equal_p operands. For & (B - 1) require B to be power of 2. Recognize (X << (Y & (B - 1))) | (X >> ((-Y) & (B - 1))) and similar patterns. * c-c++-common/rotate-5.c (f2): New function. Move old function to ... (f4): ... this. Use 127 instead of 128. (f3, f5, f6): New functions. (main): Test all f[1-6] functions, with both 0 and 1 as second arguments. * c-c++-common/rotate-6.c: New test. * c-c++-common/rotate-6a.c: New test. * c-c++-common/rotate-7.c: New test. * c-c++-common/rotate-7a.c: New test. * c-c++-common/rotate-8.c: New test. From-SVN: r253760
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