[Bug bootstrap/48168] New: [4.7 regression] Solaris 2/SPARC bootstrap broken: ICE in sparc_function_arg_1, at config/sparc/sparc.c:5721

["ro at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48168

           Summary: [4.7 regression] Solaris 2/SPARC bootstrap broken: ICE
                    in sparc_function_arg_1, at config/sparc/sparc.c:5721
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ro@gcc.gnu.org
                CC: jakub@redhat.com, ebotcazou@gcc.gnu.org
              Host: sparc-sun-solaris2.*
            Target: sparc-sun-solaris2.*
             Build: sparc-sun-solaris2.*


Created attachment 23692
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23692
preprocessed input file

Within the last two days, Solaris 2/SPARC got broken: cc1plus ICEs building the
64-bit streambuf-inst.lo:

$ /var/gcc/regression/trunk/11-gcc/build/./gcc/xgcc -shared-libgcc
-B/var/gcc/regression/trunk/11-gcc/build/./gcc -nostdinc++
-L/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/src
-L/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/src/.libs
-B/vol/gcc/sparc-sun-solaris2.11/bin/ -B/vol/gcc/sparc-sun-solaris2.11/lib/
-isystem /vol/gcc/sparc-sun-solaris2.11/include -isystem
/vol/gcc/sparc-sun-solaris2.11/sys-include -m64
-I/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/sparc-sun-solaris2.11
-I/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include
-I/vol/gcc/src/hg/trunk/local/libstdc++-v3/libsupc++ -fno-implicit-templates
-Wall -Wextra -Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once
-ffunction-sections -fdata-sections -g -O2 -m64 -c
/vol/gcc/src/hg/trunk/local/libstdc++-v3/src/streambuf-inst.cc  -fPIC -DPIC -o
.libs/streambuf-inst.o -save-temps
In file included from
/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/ios:44:0,
                 from
/vol/gcc/src/hg/trunk/local/libstdc++-v3/src/streambuf-inst.cc:30:
/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/streambuf:
In member function 'std::basic_streambuf<_CharT, _Traits>::pos_type
std::basic_streambuf<_CharT, _Traits>::pubseekpos(std::basic_streambuf<_CharT,
_Traits>::pos_type, std::ios_base::openmode) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_streambuf<_CharT, _Traits>::pos_type =
std::fpos<__mbstate_t>, std::ios_base::openmode = std::_Ios_Openmode]':
/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/streambuf:248:45:
internal compiler error: in sparc_function_arg_1, at config/sparc/sparc.c:5721

Can be reduced to

$ ./cc1plus streambuf-inst.ii -mptr64 -mstack-bias -mno-v8plus -mcpu=v9 -quiet
-m64 -g -O2
In file included from
/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/ios:44:0,
                 from
/vol/gcc/src/hg/trunk/local/libstdc++-v3/src/streambuf-inst.cc:30:
/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/streambuf:
In member function 'std::basic_streambuf<_CharT, _Traits>::pos_type
std::basic_streambuf<_CharT, _Traits>::pubseekpos(std::basic_streambuf<_CharT,
_Traits>::pos_type, std::ios_base::openmode) [with _CharT = char, _Traits =
std::char_traits<char>, std::basic_streambuf<_CharT, _Traits>::pos_type =
std::fpos<__mbstate_t>, std::ios_base::openmode = std::_Ios_Openmode]':
/var/gcc/regression/trunk/11-gcc/build/sparc-sun-solaris2.11/sparcv9/libstdc++-v3/include/streambuf:248:45:
internal compiler error: in sparc_function_arg_1, at config/sparc/sparc.c:5721

The stack trace is
(gdb) where
#0  fancy_abort (file=0xa8a790
"/vol/gcc/src/hg/trunk/local/gcc/config/sparc/sparc.c", line=5721,
function=0xa8c118 "sparc_function_arg_1") at
/vol/gcc/src/hg/trunk/local/gcc/diagnostic.c:893
#1  0x007c5a08 in sparc_function_arg_1 (cum=0xffbfeee4, mode=BLKmode,
type=0xff030480, named=1 '\001', incoming_p=0 '\000') at
/vol/gcc/src/hg/trunk/local/gcc/config/sparc/sparc.c:5721
#2  0x007a1580 in prepare_call_arguments () at
/vol/gcc/src/hg/trunk/local/gcc/var-tracking.c:5736
#3  vt_initialize () at /vol/gcc/src/hg/trunk/local/gcc/var-tracking.c:8785
#4  0x007a81d8 in variable_tracking_main_1 () at
/vol/gcc/src/hg/trunk/local/gcc/var-tracking.c:8939
#5  variable_tracking_main () at
/vol/gcc/src/hg/trunk/local/gcc/var-tracking.c:8991
#6  0x0051bc5c in execute_one_pass (pass=0xadb758) at
/vol/gcc/src/hg/trunk/local/gcc/passes.c:1556
#7  0x0051bfb8 in execute_pass_list (pass=0xadb758) at
/vol/gcc/src/hg/trunk/local/gcc/passes.c:1611
#8  0x0051bfdc in execute_pass_list (pass=0xad9b98) at
/vol/gcc/src/hg/trunk/local/gcc/passes.c:1612
#9  0x0051bfdc in execute_pass_list (pass=0xad9bcc) at
/vol/gcc/src/hg/trunk/local/gcc/passes.c:1612
#10 0x0063a024 in tree_rest_of_compilation (fndecl=0xfe530800) at
/vol/gcc/src/hg/trunk/local/gcc/tree-optimize.c:422
#11 0x007db700 in cgraph_expand_function (node=Unhandled dwarf expression
opcode 0xf3
) at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1576
#12 0x007de178 in cgraph_expand_all_functions () at
/vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1635
#13 cgraph_optimize () at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1899
#14 0x007de760 in cgraph_finalize_compilation_unit () at
/vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1096
#15 0x001918e0 in cp_write_global_declarations () at
/vol/gcc/src/hg/trunk/local/gcc/cp/decl2.c:4000
#16 0x005d8ffc in compile_file (argc=10, argv=0xffbff444) at
/vol/gcc/src/hg/trunk/local/gcc/toplev.c:591
#17 do_compile (argc=10, argv=0xffbff444) at
/vol/gcc/src/hg/trunk/local/gcc/toplev.c:1900
#18 toplev_main (argc=10, argv=0xffbff444) at
/vol/gcc/src/hg/trunk/local/gcc/toplev.c:1963
#19 0x000c2804 in _start ()

Maybe this indicates that Jakub's recent patch

2011-03-16  Jakub Jelinek  <jakub@redhat.com>

    * emit-rtl.c (try_split): Don't call copy_call_info debug hook.
    * calls.c: Remove debug.h include.
    (emit_call_1): Don't call virtual_call_token debug hook.

Is the culprit?