[olofsonprojects] EEL/GCC 4.2.2 issue resolved
- From: David Olofson <david@xxxxxxxxxxx>
- To: olofsonprojects@xxxxxxxxxxxxx
- Date: Mon, 11 Feb 2008 15:40:34 +0100
(From the "kobodeluxe patch to allow..." thread:)
On Monday 11 February 2008, David Olofson wrote:
[...]
> (Right now I'm busy fighting GCC 4.2.2, which is apparently trying
> to optimize the EEL VM beyond the speed of light or something... Of
> course, all that does is corrupt VM registers when the VM tries to
> do inplace operations, which results in a mess not even Valgrind can
> make much sense of. *heh* Even so, I've narrowed it down two
> functions now, so I should have it sorted pretty soon.)
[...]
In case anyone else has been running into this with EEL or other code,
it's a known compiler bug:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32328
The fix for now is to use -fno-strict-aliasing with -O2 and higher.
//David Olofson - Programmer, Composer, Open Source Advocate
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