Re: c++/8183: ICE when compiling classes with virtual base classon sparc64-sun-solaris2.8

[Christian Jönsson<c dot christian dot joensson at telia dot com>]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8183

well, the bug-or-feature was introduced between

Sep 16 08:16:13 UTC 2002, and Sep 20 10:00 UTC 2002

however, trying to bootstrap, a usual 2 stage bootstrap, using gcc 3.2.2 
20021204 (prerelease) as bootstrapping compiler, the Sep 20 10:00 UTC 
2002 gcc cvs trunk, then 3.3 experimental, gets me this ICE:

/bin/sh ../libtool --tag CXX --mode=compile 
/usr/local/src/gcc-binutils/trunk/objdir/gcc/xgcc -shared-libgcc 
-B/usr/local/src/gcc-binutils/trunk/objdir/gcc/ -nostdinc++ 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src/.libs 
-B/usr/local/gcc-binutils/sparc64-linux/bin/ 
-B/usr/local/gcc-binutils/sparc64-linux/lib/ -isystem 
/usr/local/gcc-binutils/sparc64-linux/include -nostdinc++ 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/sparc64-linux 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libsupc++  
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libmath    -g -O2 
-D_GNU_SOURCE -fno-implicit-templates  -Wall -Wno-format -W 
-Wwrite-strings -Winline  -fdiagnostics-show-location=once  
-ffunction-sections -fdata-sections -g    -c 
/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/src/complex_io.cc
/usr/local/src/gcc-binutils/trunk/objdir/gcc/xgcc -shared-libgcc 
-B/usr/local/src/gcc-binutils/trunk/objdir/gcc/ -nostdinc++ 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src/.libs 
-B/usr/local/gcc-binutils/sparc64-linux/bin/ 
-B/usr/local/gcc-binutils/sparc64-linux/lib/ -isystem 
/usr/local/gcc-binutils/sparc64-linux/include -nostdinc++ 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/sparc64-linux 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libsupc++ 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libmath -g -O2 
-D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W 
-Wwrite-strings -Winline -fdiagnostics-show-location=once 
-ffunction-sections -fdata-sections -g -c 
/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/src/complex_io.cc  
-fPIC -DPIC -o .libs/complex_io.o
In file included from 
/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/sstream:367,
                from 
/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/complex:51,
                from 
/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/src/complex_io.cc:30:
/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/iosfwd: 
Ininstantiation of `std::basic_iostream<char, std::char_traits<char> >':
/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/bits/sstream.tcc:234:   
instantiated from `std::basic_stringstream<char, std::char_traits<char>, 
std::allocator<char> >'
/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/bits/sstream.tcc:234:   
instantiated from here
/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/iosfwd:64: 
internal compiler error: in
  lookup_base_r, at cp/search.c:282
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make[4]: *** [complex_io.lo] Error 1

and trying the ice.ii testcase gives me this:

chj@u1sparc:/usr/local/src/gcc-binutils/trunk/objdir$ 
/usr/local/src/gcc-binutils/trunk/objdir/gcc/xgcc -shared-libgcc 
-B/usr/local/src/gcc-binutils/trunk/objdir/gcc/ -nostdinc++ 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src/.libs 
-B/usr/local/gcc-binutils/sparc64-linux/bin/ 
-B/usr/local/gcc-binutils/sparc64-linux/lib/ -isystem 
/usr/local/gcc-binutils/sparc64-linux/include -nostdinc++ 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/sparc64-linux 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libsupc++ 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libmath -g -O2 
-D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W 
-Wwrite-strings -Winline -fdiagnostics-show-location=once 
-ffunction-sections -fdata-sections -g -c /home/chj/ice.ii -fPIC -DPIC 
-o /tmp/out.o
/home/chj/ice.ii:4: internal compiler error: in lookup_base_r, at 
cp/search.c:
  282
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
chj@u1sparc:/usr/local/src/gcc-binutils/trunk/objdir$

however, if I just build the compiler, i.e., not doing a bootstrap, I do 
not get the ICE.

Furthermore, trying to run gdb gets me nowhere, I suppose from the fact 
that it's a 64/bit binary

Current directory is /usr/local/src/gcc-binutils/trunk/objdir/gcc/
GNU gdb Red Hat Linux (5.2-2)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain 
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "sparc-redhat-linux"...
Breakpoint 1 at 0x10cf44: file 
/usr/local/src/gcc-binutils/trunk/gcc/gcc/gcc.c, line 6366.
Breakpoint 2 at 0x216ea0
Breakpoint 3 at 0x216ac0
(gdb) set args -shared-libgcc 
-B/usr/local/src/gcc-binutils/trunk/objdir/gcc/ -nostdinc++ 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src/.libs 
-B/usr/local/gcc-binutils/sparc64-linux/bin/ 
-B/usr/local/gcc-binutils/sparc64-linux/lib/ -isystem 
/usr/local/gcc-binutils/sparc64-linux/include -nostdinc++ 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/sparc64-linux 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libsupc++ 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libmath -g -O2 
-D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W 
-Wwrite-strings -Winline -fdiagnostics-show-location=once 
-ffunction-sections -fdata-sections -g -c /home/chj/ice.ii -fPIC -DPIC 
-o /tmp/out.o
(gdb) r
Starting program: /usr/local/src/gcc-binutils/trunk/objdir/gcc/xgcc 
-shared-libgcc -B/usr/local/src/gcc-binutils/trunk/objdir/gcc/ 
-nostdinc++ 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src 
-L/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/src/.libs 
-B/usr/local/gcc-binutils/sparc64-linux/bin/ 
-B/usr/local/gcc-binutils/sparc64-linux/lib/ -isystem 
/usr/local/gcc-binutils/sparc64-linux/include -nostdinc++ 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include/sparc64-linux 
-I/usr/local/src/gcc-binutils/trunk/objdir/sparc64-linux/libstdc++-v3/include 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libsupc++ 
-I/usr/local/src/gcc-binutils/trunk/gcc/libstdc++-v3/libmath -g -O2 
-D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W 
-Wwrite-strings -Winline -fdiagnostics-show-location=once 
-ffunction-sections -fdata-sections -g -c /home/chj/ice.ii -fPIC -DPIC 
-o /tmp/out.o
warning: Cannot insert breakpoint -1:
Cannot access memory at address 0xef80
(gdb) quit
The program is running.  Exit anyway? (y or n) y

Debugger finished

I'm just plain out of ideas right now...

So, I wonder what the analysis is?

Cheers,

/ChJ