mkcolg
Joined: 30 Jun 2004
Posts: 4996
Location: The Portland Group Inc.
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 Posted: Mon Mar 11, 2013 10:45 am Post subject: |
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| Quote: | | If that is true of what advantage is unrolling? |
Besides the reduction in branching, which can be quite costly, the compiler can better perform instruction scheduling, memory prefetching (which benefits caching), and may be able to eliminate repeated instrucitons.
- Mat |
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