[Bug c++/11871] New: Koenig lookup regression

[Bug c++/11871] New: Koenig lookup regression

[mueller at kde dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871

           Summary: Koenig lookup regression
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mueller at kde dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

Since recently (<3 days) this testcase segfaults mainline:

$ g++ -v -Wall -W -c kplayobjectfactory.cc 
Reading specs from /opt/gcc/lib/gcc/i686-pc-linux-gnu/3.4/specs
Configured with: ../configure --prefix=/opt/gcc --enable-c99 --enable-long-long
--enable-shared --enable-threads --enable-languages=c,c++
Thread model: posix
gcc version 3.4 20030809 (experimental)
kplayobjectfactory.cc: In function `int main()':
kplayobjectfactory.cc:21: warning: unused variable 'result'
kplayobjectfactory.cc:21: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


attaching testcase in a minute

[Bug c++/11871] Koenig lookup regression

[mueller at kde dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871



------- Additional Comments From mueller at kde dot org  2003-08-09 22:51 -------
Created an attachment (id=4586)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4586&action=view)
testcase

[Bug c++/11871] Koenig lookup regression

[mueller at kde dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


mueller at kde dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Priority|P2                          |P1
   Last reconfirmed|0000-00-00 00:00:00         |2003-08-09 22:59:17
               date|                            |
            Summary|Koenig lookup regression    |[3.4 Regression] Koenig
                   |                            |lookup regression


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-09 22:59 -------
I can confirm this on the mainline (20030809).
Here is the back trace:

(gdb) bt
#0  0x0805d16e in poplevel (keep=1, reverse=1, functionbody=0) at /home/gates/pinskia/src/
gnu/gcc/src/gcc/cp/decl.c:1390
#1  0x081337cd in do_poplevel () at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/
semantics.c:339
#2  0x08134f95 in finish_for_stmt (for_stmt=0x4004c3e0) at /home/gates/pinskia/src/gnu/gcc/
src/gcc/cp/semantics.c:683
#3  0x080f6d34 in cp_parser_iteration_statement (parser=0x400ae800) at /home/gates/pinskia/
src/gnu/gcc/src/gcc/cp/parser.c:5603
#4  0x080f65a4 in cp_parser_statement (parser=0x400ae800, in_statement_expr_p=false) at /
home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:5112
#5  0x080f6852 in cp_parser_statement_seq_opt (parser=0x400ae800, 
in_statement_expr_p=false) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:5315
#6  0x080f67f1 in cp_parser_compound_statement (parser=0x400ae800, 
in_statement_expr_p=false) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:5288
#7  0x080fbf09 in cp_parser_function_body (parser=0x0) at /home/gates/pinskia/src/gnu/gcc/
src/gcc/cp/parser.c:10704
#8  0x080fbf3b in cp_parser_ctor_initializer_opt_and_function_body (parser=0x400ae800) at /
home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:10721
#9  0x080ff7f8 in cp_parser_function_definition_after_declarator (parser=0x400ae800, 
inline_p=false) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:13423
#10 0x080ff752 in cp_parser_function_definition_from_specifiers_and_declarator 
(parser=0x400ae800, decl_specifiers=0x0, attributes=0x0, declarator=0x0)
    at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:13369
#11 0x080fa493 in cp_parser_init_declarator (parser=0x400ae800, decl_specifiers=0x400b02a8, 
prefix_attributes=0x0, function_definition_allowed_p=true, member_p=false, 
    function_definition_p=0xbffec303) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/
parser.c:9228
#12 0x080f743d in cp_parser_simple_declaration (parser=0x400ae800, 
function_definition_allowed_p=true) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/
parser.c:6106
#13 0x080f7304 in cp_parser_block_declaration (parser=0x400ae800, statement_p=false) at /
home/gates/pinskia/src/gnu/gcc/src/gcc/cp/parser.c:6023
#14 0x080f71bd in cp_parser_declaration (parser=0x400ae800) at /home/gates/pinskia/src/gnu/
gcc/src/gcc/cp/parser.c:5943
#15 0x080f7068 in cp_parser_declaration_seq_opt (parser=0x400ae800) at /home/gates/pinskia/
src/gnu/gcc/src/gcc/cp/parser.c:5852
#16 0x080f3702 in cp_parser_translation_unit (parser=0x400ae800) at /home/gates/pinskia/src/
gnu/gcc/src/gcc/cp/parser.c:2136
#17 0x08100b01 in c_parse_file () at /home/gates/pinskia/src/gnu/gcc/src/gcc/cp/
parser.c:14311
#18 0x08179cdb in c_common_parse_file (set_yydebug=0) at /home/gates/pinskia/src/gnu/gcc/
src/gcc/c-opts.c:1205
#19 0x083bc05a in compile_file () at /home/gates/pinskia/src/gnu/gcc/src/gcc/toplev.c:1730
#20 0x083c088a in do_compile () at /home/gates/pinskia/src/gnu/gcc/src/gcc/toplev.c:4408
#21 0x083c099d in toplev_main (argc=0, argv=0xbffec4e4) at /home/gates/pinskia/src/gnu/
gcc/src/gcc/toplev.c:4448
#22 0x0817d92b in main (argc=0, argv=0x0) at /home/gates/pinskia/src/gnu/gcc/src/gcc/
main.c:35

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[mueller at kde dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


mueller at kde dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nathan at codesourcery dot
                   |                            |com


------- Additional Comments From mueller at kde dot org  2003-08-10 20:13 -------
regression hunting shows that this commit introduced the regression: 
 
2003-07-29  Nathan Sidwell  <nathan@codesourcery.com> 
 
       PR c++/9447 
       * decl.c (add_binding): Add bval local variable. 
       (push_class_level_binding): Likewise. Allow a USING_DECL to be 
       pushed. 
       * decl2.c (do_class_using_decl):  The type of a using decl is 
       unknown. 
       * parser.c (cp_parser_postfix_expression): Refactor unqualified-id 
       function call lookup code. 
       * pt.c (tsubst): A USING_DECL will have unknown type. 
       (tsubst_copy_and_build): Allow a using decl. 
       (type_dependent_expression_p): A USING_DECL will make it 
       dependent. 
       * semantics.c (finish_member_declaration): Push a dependent using 
       declaration.

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[nathan at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


nathan at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |nathan at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[nathan at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


nathan at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |poschmid at lbl dot gov


------- Additional Comments From nathan at gcc dot gnu dot org  2003-08-25 18:06 -------
*** Bug 11886 has been marked as a duplicate of this bug. ***

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[cvs-commit at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-08-26 09:16 -------
Subject: Bug 11871

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	nathan@gcc.gnu.org	2003-08-26 09:16:17

Modified files:
	gcc/cp         : ChangeLog decl.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/lookup: crash1.C 

Log message:
	cp:
	PR c++/11871
	* decl.c (push_class_level_binding): Correct old_decl value from
	my 2003-07-29 reorganization.
	testsuite:
	PR c++/11871
	* c++.dg/lookup/crash1.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3625&r2=1.3626
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&r1=1.1117&r2=1.1118
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3001&r2=1.3002
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/crash1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[nathan at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


nathan at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


------- Additional Comments From nathan at gcc dot gnu dot org  2003-08-26 09:20 -------
2003-08-26  Nathan Sidwell  <nathan@codesourcery.com>

	PR c++/11871
	* decl.c (push_class_level_binding): Correct old_decl value from
	my 2003-07-29 reorganization.

[Bug c++/11871] [3.4 Regression] Koenig lookup regression

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11871


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Fons dot Rademakers at cern
                   |                            |dot ch


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-27 15:11 -------
*** Bug 12051 has been marked as a duplicate of this bug. ***