[Bug middle-end/63244] [4.9/5 regression] internal compiler error: Segmentation fault (program cc1plus)

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63244

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
           Priority|P3                          |P1
            Summary|[4.9 regression] internal   |[4.9/5 regression] internal
                   |compiler error:             |compiler error:
                   |Segmentation fault (program |Segmentation fault (program
                   |cc1plus)                    |cc1plus)

--- Comment #14 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
This also happens when building the Linux kernel on ppc64 with 5.0:

trippels@gcc2-power8 linux-3.17.2 % gcc -c -O2 sock.i
gcc: internal compiler error: Segmentation fault (program cc1)
0x1000f7bb execute
        ../../gcc/gcc/gcc.c:2908
0x1000fd03 do_spec_1
        ../../gcc/gcc/gcc.c:4724
0x10012807 process_brace_body
        ../../gcc/gcc/gcc.c:6007
0x10012807 handle_braces
        ../../gcc/gcc/gcc.c:5921
0x1001090f do_spec_1
        ../../gcc/gcc/gcc.c:5378
0x10012807 process_brace_body
        ../../gcc/gcc/gcc.c:6007
0x10012807 handle_braces
        ../../gcc/gcc/gcc.c:5921
0x1001090f do_spec_1
        ../../gcc/gcc/gcc.c:5378
0x1000ffb7 do_spec_1
        ../../gcc/gcc/gcc.c:5493
0x10012807 process_brace_body
        ../../gcc/gcc/gcc.c:6007
0x10012807 handle_braces
        ../../gcc/gcc/gcc.c:5921
0x1001090f do_spec_1
        ../../gcc/gcc/gcc.c:5378
0x10012807 process_brace_body
        ../../gcc/gcc/gcc.c:6007
0x10012807 handle_braces
        ../../gcc/gcc/gcc.c:5921
0x1001090f do_spec_1
        ../../gcc/gcc/gcc.c:5378
0x10012807 process_brace_body
        ../../gcc/gcc/gcc.c:6007
0x10012807 handle_braces
        ../../gcc/gcc/gcc.c:5921
0x1001090f do_spec_1
        ../../gcc/gcc/gcc.c:5378
0x10012807 process_brace_body
        ../../gcc/gcc/gcc.c:6007
0x10012807 handle_braces
        ../../gcc/gcc/gcc.c:5921
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.

dmesg shows:
[Nov 7 13:23] cc1[65025]: bad frame in setup_rt_frame: 00003fffebfbf770 nip
0000000010461268 lr 0000000010465c80

Looks like a stack overflow. Adjusting importance.