[gstreamer-bugs] [Bug 599546] Faster read/write macros
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Tue Oct 27 01:34:30 PDT 2009
https://bugzilla.gnome.org/show_bug.cgi?id=599546
GStreamer | gstreamer (core) | git
--- Comment #10 from Sebastian Dröge <slomo at circular-chaos.org> 2009-10-27 08:34:29 UTC ---
(In reply to comment #9)
> It also seems that latest gcc (since 4.4 maybe ?) will automatically error out
> on aliasing issues. That's the reason of those two extra commits.
>
> If gcc 4.4 now properly errors out... can't we just fix all modules and be done
> with it ?
gcc developers said, that there's no guarantee that gcc will warn about all
aliasing issues. That was in gcc 4.2 times, not long ago. Are you sure this has
changed? Does gcc 4.4 warn about the aliasing issue in bug #348114? And will
gcc 4.4 on x86 warn about possible aliasing issues on other architectures
(because of different possible optimizations and stuff, bug #348114 for example
only happened on PPC)? If you can answer all those questions it's probably a
good idea to change the normal macros, otherwise it's probably better to add
new unsafe variants.
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