[Bug c/34720] New: ICE in real_to_decimal, at real.c:1656

["tgall dot foo at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

overview:

building gcc 4.3 with gcc 4.3 fails on a 64 bit ppc64 box. (yes, running as
elf64)

gcc -v
Using built-in specs.
Target: powerpc64-unknown-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/configure
--prefix=/usr
--bindir=/usr/powerpc64-unknown-linux-gnu/gcc-bin/4.3.0-alpha20080104
--includedir=/usr/lib/gcc/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/include
--datadir=/usr/share/gcc-data/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104
--mandir=/usr/share/gcc-data/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/man
--infodir=/usr/share/gcc-data/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/info
--with-gxx-include-dir=/usr/lib/gcc/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/include/g++-v4
--host=powerpc64-unknown-linux-gnu --build=powerpc64-unknown-linux-gnu
--disable-altivec --disable-nls --with-system-zlib --disable-checking
--disable-werror --enable-secureplt --disable-libunwind-exceptions
--disable-multilib --disable-libmudflap --disable-libssp --disable-libgcj
--enable-languages=c --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 4.3.0-alpha20080104  (experimental) (GCC)


./configure options:
        --prefix=/usr           
        --bindir=/usr/powerpc64-unknown-linux-gnu/gcc-bin/4.3.0-alpha20080104   
       
--includedir=/usr/lib/gcc/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/include 
       
--datadir=/usr/share/gcc-data/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104   
       
--mandir=/usr/share/gcc-data/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/man 
       
--infodir=/usr/share/gcc-data/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/info 
       
--with-gxx-include-dir=/usr/lib/gcc/powerpc64-unknown-linux-gnu/4.3.0-alpha20080104/include/g++-v4 
        --host=powerpc64-unknown-linux-gnu 
        --build=powerpc64-unknown-linux-gnu 
        --disable-altivec 
        --enable-nls 
        --without-included-gettext              
        --with-system-zlib              
        --disable-checking              
        --disable-werror                
        --enable-secureplt              
        --disable-libunwind-exceptions 
        --disable-multilib 
        --disable-libmudflap 
        --disable-libssp 
        --disable-libgcj 
        --enable-languages=c,c++,treelang 
        --enable-shared 
        --enable-threads=posix 
        --enable-__cxa_atexit 
        --enable-clocale=gnu


output + cmd issued that died

sed -e s/TARGET_GETGROUPS_T/gid_t/ \
         
/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/sys-types.h
/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/sys-protos.h
> SYSCALLS.c
/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/build/./gcc/xgcc
-B/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/build/./gcc/
-B/usr/powerpc64-unknown-linux-gnu/bin/ -B/usr/powerpc64-unknown-linux-gnu/lib/
-isystem /usr/powerpc64-unknown-linux-gnu/include -isystem
/usr/powerpc64-unknown-linux-gnu/sys-include -O2 -g -O2 -pipe   -DIN_GCC    -W
-Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -Wno-strict-prototypes -Wno-error -isystem ./include 
-I. -I.
-I/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc
-I/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/.
-I/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/../include
-I/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/../libcpp/include

-I/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/../libdecnumber
-I/var/tmp/portage/sys-devel/gcc-4.3.0_alpha20080104/work/gcc-4.3-20080104/gcc/../libdecnumber/dpd
-I../libdecnumber    \
          -aux-info SYSCALLS.c.X -S -o tmp-SYSCALLS.s SYSCALLS.c
<built-in>:0: internal compiler error: in real_to_decimal, at real.c:1656
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

I'm still digging into this .. I'll attach the -save-temps output in a bit


-- 
           Summary: ICE in real_to_decimal, at real.c:1656
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tgall dot foo at gmail dot com
 GCC build triplet: powerpc64-unknown-linux-gnu
  GCC host triplet: powerpc64-unknown-linux-gnu
GCC target triplet: powerpc64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34720