[Bug c/19885] New: dwarf-2 support is broken for head 4.0.0

["bjoern dot m dot haase at web dot de" <gcc-bugzilla at gcc dot gnu dot org>]

I have just been checking out the entire gcc tree (head 4.0.0) and run a clean  
rebuild: 
 
cd build_directory 
rm -r * 
../gcc/configure --target=avr --prefix=/home/bmh --disable-nls --with-dwarf2  
--enable-languages="c" 
make all 
 
(Note that I have used --with-dwarf2!) What I am getting is :-( : 
 
../../gcc/gcc/libgcc2.c:535: internal compiler error: in simplify_subreg, at  
simplify-rtx.c:3671 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions. 
make[2]: *** [libgcc/./_muldi3.o] Fehler 1 
make[2]: Leaving directory `/home/bmh/gnucvs/head/build/gcc' 
make[1]: *** [stmp-multilib] Fehler 2 
make[1]: Leaving directory `/home/bmh/gnucvs/head/build/gcc' 
make: *** [all-gcc] Fehler 2 
 
When building head 4.0.0 without --with-dwarf2, the build succeeds. I have  
made the same observation with last week's snapshot on another build system. 
 
Unfortunate thing is: dwarf-2 is the main debugging format for all the windows  
users that use the Atmel debugger (avr-gdb is so slow under cygwin that it is  
almost not useful to use it). 
 
Yours, 
 
Björn

-- 
           Summary: dwarf-2 support is broken for head 4.0.0
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bjoern dot m dot haase at web dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-linux
  GCC host triplet: i686-linux
GCC target triplet: avr-unknown-none


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19885