On Thu, Mar 7, 2013 at 12:33 AM, Mike Hommey <mh-...@glandium.org> wrote: > On Thu, Mar 07, 2013 at 12:28:22AM -0800, Andrew Pinski wrote: >> On Thu, Mar 7, 2013 at 12:24 AM, Mike Hommey <mh-...@glandium.org> wrote: >> > Hi, >> > >> > At Mozilla, we've encountered a GCC 4.6 miscompilation in the ARMv6 >> > build of Firefox for Android. We'd like to evaluate whether this bug is >> > hitting us in more places than the one we spotted. To that end, we'd >> > need to know what particular bug in GCC leads to this miscompilation. >> > >> > The attached file is the preprocessed source, slightly simplified. I was >> > able to reproduce the miscompilation with both the GCC 4.6 from the >> > Android NDK r8d and 4.6.3 from Debian unstable. It apparently happens >> > for any -march, with -marm, but not -mthumb. It happens at -Os but not >> > -O2. >> >> No attached file. > > Sent it afterwards.
Still not on the list. I bet it was too big so it was rejected by the list. Try filing a bug report instead. Thanks, Andrew > >> Also does -fno-strict-aliasing fix it? > > It doesn't (in fact, the file was already built with > -fno-strict-aliasing in Firefox) > > Mike
