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Re: optimization/6007: cfg cleanup tremendous performance hog with -O1
- From: Brad Lucier <lucier at math dot purdue dot edu>
- To: jh at suse dot cz (Jan Hubicka)
- Cc: dje at watson dot ibm dot com (David Edelsohn), lucier at math dot purdue dot edu, gcc at gcc dot gnu dot org, mark at codesourcery dot com, feeley at iro dot umontreal dot ca
- Date: Sun, 24 Mar 2002 20:59:16 -0500 (EST)
- Subject: Re: optimization/6007: cfg cleanup tremendous performance hog with -O1
[RE: crossjumping]
> I will try to check whether I can squeze out some more cycles or
> find way how to limit this.
My code uses a lot of computed goto's, with many labels. Is crossjumping
possibly a win in this case? Can it ignore these jumps?
Brad