ICE in compiling complex/cacos.c for arm/thumb

[Ralf Corsepius]

On 10/09/2010 10:35 AM, Ralf Corsepius wrote:
> Hi,
>
> when bootstrapping GCC/newlib for arm/thumb using gcc-4.5.1 or
> gcc-4_5-branch, I am facing a GCC ICE:
>
> ...
> /builddir/build/BUILD/rtems-4.11-arm-rtems4.11-gcc-4.5.1/build/./gcc/xgcc -B/builddir/build/BUILD/rtems-4.11-arm-rtems4.11-gcc-4.5.1/build/./gcc/
> -nostdinc
> -B/builddir/build/BUILD/rtems-4.11-arm-rtems4.11-gcc-4.5.1/build/arm-rtems4.11/thumb/newlib/
> -isystem
> /builddir/build/BUILD/rtems-4.11-arm-rtems4.11-gcc-4.5.1/build/arm-rtems4.11/thumb/newlib/targ-include
> -isystem
> /builddir/build/BUILD/rtems-4.11-arm-rtems4.11-gcc-4.5.1/gcc-4.5.1/newlib/libc/include
> -B/opt/rtems-4.11/arm-rtems4.11/bin/
> -B/opt/rtems-4.11/arm-rtems4.11/lib/ -isystem
> /opt/rtems-4.11/arm-rtems4.11/include -isystem
> /opt/rtems-4.11/arm-rtems4.11/sys-include -mthumb
> -DPACKAGE_NAME=\"newlib\" -DPACKAGE_TARNAME=\"newlib\"
> -DPACKAGE_VERSION=\"1.18.0\" -DPACKAGE_STRING=\"newlib\ 1.18.0\"
> -DPACKAGE_BUGREPORT=\"\" -I.
> -I../../../../../../gcc-4.5.1/newlib/libm/complex
> -I../../../../../../gcc-4.5.1/newlib/libm/complex/../common
> -I../../../../../../gcc-4.5.1/newlib/libm/complex/ -D_COMPILING_NEWLIB
> -DMALLOC_PROVIDED -DEXIT_PROVIDED -DSIGNAL_PROVIDED
> -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_NANOSLEEP -DHAVE_BLKSIZE
> -DHAVE_FCNTL -DHAVE_ASSERT_FUNC -D_NO_GETLOGIN -D_NO_GETPWENT
> -D_NO_GETUT -D_NO_GETPASS -D_NO_SIGSET -D_NO_WORDEXP -D_NO_POPEN
> -fno-builtin -g -O2 -mthumb -c -o lib_a-cacos.o `test -f 'cacos.c' ||
> echo '../../../../../../gcc-4.5.1/newlib/libm/complex/'`cacos.c
> ../../../../../../gcc-4.5.1/newlib/libm/complex/cacos.c: In function
> 'cacos':
> ../../../../../../gcc-4.5.1/newlib/libm/complex/cacos.c:46:1: internal
> compiler error: in find_valid_class, at reload.c:704
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.
> make[8]: *** [lib_a-cacos.o] Error 1
>
>
> Though this definitely is a compiler bug, I found reordering the code in
> complex/cacos.c lets building succeed.
>
> I am going to add this patch to RTEMS newlib patches and would
> appreciate if it was considered for inclusion in newlib.
>
> TIA,
>
> Ralf

Ping!

Ralf