[LLVMdev] Newbie question on front-end and code compaction

Mike Stump mrs at apple.com
Fri Sep 5 10:06:54 PDT 2008


On Sep 4, 2008, at 8:03 PM, Bernardo Elayda wrote:
> I'm also interested in helping out with compaction(making code with  
> a small footprint).

People pointed out recently on the list that -Os doesn't work so  
well.  See the email from regehr at cs.utah.edu on Aug 20 on llvmdev.   
You should be able to work with him to get testcases, from there you  
just grind through them and find why they are bigger and reduce them.   
Failing that, just compile up any software and compare.  Should be  
lots of low hanging fruit.



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