Automatic loop unrolling?

Automatic loop unrolling?

lionelk's picture
lionelk
Mon, 01/06/2003 - 18:51

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?

RSS Top
2 posts / 0 new
Last post
For more complete information about compiler optimizations, see our Optimization Notice.
TimP (Intel)'s picture
TimP (Intel)
Mon, 01/06/2003 - 18:56

Yes, the compiler unrolls automatically, with default optimization levels. More extensive unrolling is performed when appropriate for vectorization.

Top

Login to leave a comment.