[Bug fastjar/36542] New: 300% code bloat with -O3

["tim at klingt dot org" <gcc-bugzilla at gcc dot gnu dot org>]

the attached code (preprocessed source) compiles to the following sizes:

gcc-4.2, -O2:  51072
gcc-4.2, -O3:  53492
gcc-4.3, -O2:  44976
gcc-4.3, -O3: 143736

the full command line is:
$g++ -c -OX -mfpmath=sse -msse -msse2 -fvisibility=hidden -fPIC -DNDEBUG
path/to/file

gcc-4.3 -v:
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.3.1-2'
--with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3
--program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug
--enable-objc-gc --enable-mpfr --enable-targets=all --enable-cld
--enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu
--target=i486-linux-gnu
Thread model: posix
gcc version 4.3.1 (Debian 4.3.1-2)


-- 
           Summary: 300% code bloat with -O3
           Product: gcc
           Version: 4.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fastjar
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tim at klingt dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36542