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Lines Matching defs:diff

2163   int diff = S - R;
2165   if (diff >= 0) {
2166     mask = ~UINT64_C(0) >> (64 - (diff + 1));
2167     mask = (static_cast<unsigned>(diff) < (reg_size - 1)) ? mask : reg_mask;
2171     diff += reg_size;
2201   uint64_t topbits = (diff == 63) ? 0 : (~UINT64_C(0) << (diff + 1));