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Automatic loop unrolling?

lionelk
Beginner
‎01-06-2003 06:51 PM
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Hello.

I'm compiling SSE code using the "QxW" and "O3" switches (I'm only interested in P4 code). Does the Intel compiler (v7) automatically unroll loops, or should I do this manually?
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TimP
Honored Contributor III
‎01-06-2003 06:56 PM
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Yes, the compiler unrolls automatically, with default optimization levels. More extensive unrolling is performed when appropriate for vectorization.
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