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Re: propagate_freq enormous performance hit in 3.1
- To: jh at suse dot cz
- Subject: Re: propagate_freq enormous performance hit in 3.1
- From: Brad Lucier <lucier at math dot purdue dot edu>
- Date: Mon, 13 Aug 2001 11:43:31 -0500 (EST)
- Cc: lucier at math dot purdue dot edu (Brad Lucier), gcc at gcc dot gnu dot org
>From examining the sources, it seems that predict.c is your baby,
and it seems to have a serious performance problem in propagate_freq
for large flow graphs, see
Do you have any idea of what's going on here?
BTW, I apologize for the large, useless inclusion in that GNAT PR. The real
source code I tested it on is at