http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55142
--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-10-31 12:49:45 UTC --- > I am 100% sure that it is a 4.8 regression. You can verify it yourself. Precisely I cannot, that's why I'm asking: eric@polaris:~/build/gcc-4_7-branch/native> gcc/xgcc -Bgcc -S -mx32 -mtune=generic -march=x86-64 pr55142.c -S -O2 -fPIC -maddress-mode=long xgcc: error: unrecognized command line option '-maddress-mode=long' eric@polaris:~/build/gcc-4_7-branch/native> gcc/xgcc -v Using built-in specs. COLLECT_GCC=gcc/xgcc Target: x86_64-suse-linux Configured with: /home/eric/svn/gcc-4_7-branch/configure --build=x86_64-suse-linux --prefix=/home/eric/install/gcc-4_7-branch --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-__cxa_atexit --disable-nls --disable-libmudflap Thread model: posix gcc version 4.7.3 20121021 (prerelease) [gcc-4_7-branch revision 192648] (GCC)