[Bug c++/60687] New: [4.8.0] Infinite loop compiling recursive templates indirectly by local class in function

[Bug c++/60687] New: [4.8.0] Infinite loop compiling recursive templates indirectly by local class in function

[FBergemann at web dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60687

            Bug ID: 60687
           Summary: [4.8.0] Infinite loop compiling recursive templates
                    indirectly by local class in function
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: FBergemann at web dot de

[g++ 4.8.0 on Red Hat Linux 6.2 or Ubuntu Linux 12.04.3]
the g++ compiler is in an endless loop and has to be killed for compiling
main.cpp (attached next).
Then i get following error trace:
/opt/gcc-4.8.0/bin/g++ -O0 -g3 -Wall -c -fmessage-length=0 -std=c++11 -MMD -MP
-MF"main.d" -MT"main.d" -o "main.o" "../main.cpp"
g++: internal compiler error: Terminated (program cc1plus)
0x40cba1 execute
    ../../gcc/gcc.c:2822
0x40cee4 do_spec_1
    ../../gcc/gcc.c:4614
0x40f865 process_brace_body
    ../../gcc/gcc.c:5871
0x40f865 handle_braces
    ../../gcc/gcc.c:5785
0x40de07 do_spec_1
    ../../gcc/gcc.c:5268
0x40f865 process_brace_body
    ../../gcc/gcc.c:5871
0x40f865 handle_braces
    ../../gcc/gcc.c:5785
0x40de07 do_spec_1
    ../../gcc/gcc.c:5268
0x40daff do_spec_1
    ../../gcc/gcc.c:5373
0x40f865 process_brace_body
    ../../gcc/gcc.c:5871
0x40f865 handle_braces
    ../../gcc/gcc.c:5785
0x40de07 do_spec_1
    ../../gcc/gcc.c:5268
0x40f865 process_brace_body
    ../../gcc/gcc.c:5871
0x40f865 handle_braces
    ../../gcc/gcc.c:5785
0x40de07 do_spec_1
    ../../gcc/gcc.c:5268
0x40f865 process_brace_body
    ../../gcc/gcc.c:5871
0x40f865 handle_braces
    ../../gcc/gcc.c:5785
0x40de07 do_spec_1
    ../../gcc/gcc.c:5268
0x40f865 process_brace_body
    ../../gcc/gcc.c:5871
0x40f865 handle_braces
    ../../gcc/gcc.c:5785
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [main.o] Error 4

[Bug c++/60687] [4.8.0] Infinite loop compiling recursive templates indirectly by local class in function

[FBergemann at web dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60687

--- Comment #1 from Frank Bergemann <FBergemann at web dot de> ---
Created attachment 32466
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32466&action=edit
test program

[Bug c++/60687] [4.8.0] Infinite loop compiling recursive templates indirectly by local class in function

[jolfzverb at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60687

Yury Usishchev <jolfzverb at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jolfzverb at gmail dot com

--- Comment #2 from Yury Usishchev <jolfzverb at gmail dot com> ---
Created attachment 32479
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32479&action=edit
Reduced testcase

The loop is not infinite, eventually(after 30 minutes for my workstation) build
fails with error:

main.cpp:35:60: error: template instantiation depth exceeds maximum of 900

you can use -ftemplate-depth=100 to achieve it faster.

[Bug c++/60687] [4.8.0] Infinite loop compiling recursive templates indirectly by local class in function

[FBergemann at web dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60687

--- Comment #3 from Frank Bergemann <FBergemann at web dot de> ---
Hi Yury,
ok - thanks!
I didn't know, that the default is that high (#1024 for c++11).
So you can close it RESOLVED/WORKSFORME or INVALID.
- many thanks!

best regards,
Frank

[Bug c++/60687] [4.8.0] Infinite loop compiling recursive templates indirectly by local class in function

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60687

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Closing.