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[Bug rtl-optimization/13931] [3.3/3.4/4.0 Regression] combiner much slower on big basic blocks
- From: "echristo at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Dec 2004 19:48:49 -0000
- Subject: [Bug rtl-optimization/13931] [3.3/3.4/4.0 Regression] combiner much slower on big basic blocks
- References: <20040130124106.13931.bonzini@gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From echristo at redhat dot com 2004-12-22 19:48 -------
I thought I did on the 7th. I'm not sure there's anything we can do about this.
The behavior is correct and the previous behavior was proved to be not correct.
If someone has an idea that's guaranteed to be correct in all cases I'm willing
to try to implement it though.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13931