Dotan Shavit wrote:
On Monday 21 December 2009 14:00:39 Shachar Shemesh wrote:
Where it gets worrying is when I try to cancel loop unrolling. I tried
"-fno-unroll-loops" and "-fno-peel-loops", to no effect. I even tried
messing with the --param option (max-unrolled-insns, max-unroll-times,
max-peel-times) to no noticeable effect
max-completely-peeled-insns is your friend
This param's value is also the difference between -O3 and -O2 you were missing
Out of curiosity, how do you know that? Did you grep the gcc sources?
Shachar
--
Shachar Shemesh
Lingnu Open Source Consulting Ltd.
http://www.lingnu.com
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