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[Bug middle-end/36542] 300% code bloat with -O3
- From: "tim at klingt dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jun 2008 14:01:32 -0000
- Subject: [Bug middle-end/36542] 300% code bloat with -O3
- References: <bug-36542-12873@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from tim at klingt dot org 2008-06-15 14:01 -------
i see ... is it possible to enable the complete unroller manually?
from my understanding gcc-4.3 -O3 is the same as -O2 -fgcse-after-reload
-finline-functions -fpredictive-commoning -ftree-vectorize -funswitch-loops ...
using these optimizations manually don't bloat the code, though ...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36542