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by touisteur
534 days ago
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Sometimes you have a scalar instruction but not a vectorized one, or it doesn't match the 'lanes' you want to operate (ISTR weird holes in AVX where I could find a specific instruction for 8, 32, 64-bits lanes but not for 16). Always good to have an escape hatch there, especially a highly pipelined (or pipeline-able) one. |
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