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[Bug tree-optimization/23153] [4.1 Regression] code size regression from 4.0 on x86
- From: "dann at godzilla dot ics dot uci dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Aug 2005 18:51:47 -0000
- Subject: [Bug tree-optimization/23153] [4.1 Regression] code size regression from 4.0 on x86
- References: <20050730230931.23153.dann@godzilla.ics.uci.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dann at godzilla dot ics dot uci dot edu 2005-08-01 18:51 -------
(In reply to comment #1)
> This could be many things, first we don't care about code size for -O2.
>
> Second this is most likely jump threading.
>
> Can you add -ftree-dominator-opts and see what the code size problems are?
I am not sure what you are asking. Aren't tree-dominator-opts enabled by default
at -O2?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23153