http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46651
--- Comment #6 from Brad Jackson <bjackson at inavia dot net> 2010-11-26 21:19:17 UTC --- It happens for me compiling Firefox from trunk source on 32-bit Intel/Linux using -march=core2, but this doesn't appear to be specific to an architecture. I'm available for applying test patches to snapshot builds if GCC developers aren't able to reproduce.
