http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57017
Alan Aversa <aaversa at optics dot arizona.edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aaversa at optics dot | |arizona.edu --- Comment #7 from Alan Aversa <aaversa at optics dot arizona.edu> 2013-04-24 06:22:54 UTC --- (In reply to comment #5) > What binutils version are you using? You can find out by doing "as > --version". > > I think this is a bug in the version of binutils you are using the generated > assembly is: > " rep; ret " which is a valid assembly for x86_64. GNU assembler (Linux/GNU Binutils) 2.22.52.0.2.20120424 (In reply to comment #6) > Can't reproduce, perhaps misconfigured compiler? > HAVE_AS_IX86_REP_LOCK_PREFIX test in particular. You haven't said what target > it is and how you've configured the compiler... ../gcc-4.8.0/configure --prefix=/usr --libdir=/usr/lib64 --mandir=/usr/man --infodir=/usr/info --enable-shared --enable-bootstrap --enable-languages=ada,c,c++,fortran,go,java,lto,objc --enable-threads=posix --enable-checking=release --enable-objc-gc --with-system-zlib --with-python-dir=/lib64/python2.7/site-packages --disable-libunwind-exceptions --enable-__cxa_atexit --enable-libssp --enable-lto --with-gnu-ld --verbose --enable-java-home --with-java-home=/usr/lib64/jvm/jre --with-jvm-root-dir=/usr/lib64/jvm --with-jvm-jar-dir=/usr/lib64/jvm/jvm-exports --with-arch-directory=amd64 --with-antlr-jar=/home/slackware/slackbuilds/gcc/antlr-runtime-3.4.jar --enable-multilib --target=x86_64-slackware-linux --build=x86_64-slackware-linux --host=x86_64-slackware-linux