gcc 4.3 fails to build the attached testcase with optimization levels above -O0. Note that the problem does not occur on arm oldabi, and that it doesn't exists in gcc 4.2
Using built-in specs. Target: arm-linux-gnueabi Configured with: ../src/configure -v --with-pkgversion='Debian 4.3.0-5' --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 --disable-libssp --disable-sjlj-exceptions --enable-checking=release --build=arm-linux-gnueabi --host=arm-linux-gnueabi --target=arm-linux-gnueabi Thread model: posix gcc version 4.3.1 20080523 (prerelease) (Debian 4.3.0-5) -- Summary: internal compiler error: in extract_insn, at recog.c:1990 Product: gcc Version: 4.3.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: aurelien at aurel32 dot net GCC build triplet: arm-linux-gnueabi GCC host triplet: arm-linux-gnueabi GCC target triplet: arm-linux-gnueabi http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36415