(In reply to comment #3)
> Please add all information and especially preprocessed source, as explained in
> http://gcc.gnu.org/bugs/#detailed

Crypto++ sources:
`svn checkout https://cryptopp.svn.sourceforge.net/svnroot/cryptopp/trunk/c5 cryptopp`

Output from command is below, and asn.s attached:

jeffrey@bruno:~/Desktop/cryptopp$ make clean
...
jeffrey@bruno:~/Desktop/cryptopp$ gcc -v -save-temps -DNDEBUG -g -O2 -march=native -pipe -c asn.cpp 
gcc: warning: -pipe ignored because -save-temps specified
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/lto-wrapper
Target: i686-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.5.2-8ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.5/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.5 --enable-shared --enable-multiarch --with-multiarch-defaults=i386-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/i386-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.5 --libdir=/usr/lib/i386-linux-gnu --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-gold --enable-ld=default --with-plugin-ld=ld.gold --enable-objc-gc --enable-targets=all --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu
Thread model: posix
gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-DNDEBUG' '-g' '-O2'  '-pipe' '-c'
 /usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/cc1plus -E -quiet -v -D_GNU_SOURCE -DNDEBUG asn.cpp -D_FORTIFY_SOURCE=2 -march=prescott --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=1024 -mtune=prescott -g -fworking-directory -O2 -fpch-preprocess -fstack-protector -o asn.ii
ignoring nonexistent directory "/usr/local/include/i386-linux-gnu"
ignoring nonexistent directory "/usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/../../../../../i686-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/4.5
 /usr/include/c++/4.5/i686-linux-gnu
 /usr/include/c++/4.5/backward
 /usr/local/include
 /usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/include
 /usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/include-fixed
 /usr/include/i386-linux-gnu
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-DNDEBUG' '-g' '-O2'  '-pipe' '-c'
 /usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/cc1plus -fpreprocessed asn.ii -march=prescott --param l1-cache-size=16 --param l1-cache-line-size=64 --param l2-cache-size=1024 -mtune=prescott -quiet -dumpbase asn.cpp -auxbase asn -g -O2 -version -fstack-protector -o asn.s
GNU C++ (Ubuntu/Linaro 4.5.2-8ubuntu4) version 4.5.2 (i686-linux-gnu)
	compiled by GNU C version 4.5.2, GMP version 4.3.2, MPFR version 3.0.0-p8, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C++ (Ubuntu/Linaro 4.5.2-8ubuntu4) version 4.5.2 (i686-linux-gnu)
	compiled by GNU C version 4.5.2, GMP version 4.3.2, MPFR version 3.0.0-p8, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 0c5cb630517b5952f4898dfa56d7e8e5
asn.cpp: In member function ‘void CryptoPP::OID::DEREncode(CryptoPP::BufferedTransformation&) const’:
asn.cpp:254:1: error: unrecognizable insn:
(insn 191 175 192 2 asn.cpp:248 (set (reg:SI 2 cx)
        (mem:QI (plus:SI (reg/f:SI 1 dx [orig:60 D.44160 ] [60])
                (const_int 4 [0x4])) [16 S1 A32])) -1 (nil))
asn.cpp:254:1: internal compiler error: in extract_insn, at recog.c:2104
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.5/README.Bugs> for instructions.
jeffrey@bruno:~/Desktop/cryptopp$