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[Bug target/36713] [4.4 regression] r137252 breaks -O2 optimization on x86_64-unknown-linux-gnu
- From: "franke dot daniel at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Jul 2008 19:33:13 -0000
- Subject: [Bug target/36713] [4.4 regression] r137252 breaks -O2 optimization on x86_64-unknown-linux-gnu
- References: <bug-36713-13648@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #17 from franke dot daniel at gmail dot com 2008-07-03 19:33 -------
Subject: Re: [4.4 regression] r137252 breaks -O2 optimization on
x86_64-unknown-linux-gnu
> Well, the circumstances where the miscompilation occurs may be tricky.
> So you say you have a testcase but that doesn't show wrong behavior?
> That's unfortunate ... :/
There was this small glimmer of hope that you could tell from the assembly
difference that something's horribly, horribly wrong and you know perfectly
well how to fix it. No? :)
A properly failing testcase might take a while ...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36713