[Bug c++/13574] New: array default initializer in class lets gcc consume all memory and die

[Bug c++/13574] New: array default initializer in class lets gcc consume all memory and die

[pabel at iam dot uni-bonn dot de]

When trying to compile this program 
--- 
class A { 
  public: 
#ifdef SAFE 
    A() : argc(0) {  }; 
#else 
    A() : argc(0), argv() {  }; 
#endif 
  private: 
    int argc; 
    char* argv[]; 
}; 
 
int main() { 
    A y; 
} 
--- 
with g++ without -DSAFE, the compiler consumes all memory until it chokes: 
g++ argv.cpp -o argv -Wall 
virtual memory exhausted: Cannot allocate memory 
 
It does not happen when using "char**" as type. 
 
some info: 
 
uname -a  
Linux operator 2.4.20-4GB #1 Wed Oct 29 22:20:11 CET 2003 i686 i686 i386 
GNU/Linux 
 
g++ -v 
Reading specs from /usr/lib/gcc-lib/i586-suse-linux/3.3.1/specs 
Configured with: ../configure --enable-threads=posix --prefix=/usr 
--with-local-prefix=/usr/local --infodir=/usr/share/info 
--mandir=/usr/share/man --libdir=/usr/lib 
--enable-languages=c,c++,f77,objc,java,ada --disable-checking --enable-libgcj 
--with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib --with-system-zlib 
--enable-shared --enable-__cxa_atexit i586-suse-linux 
Thread model: posix 
gcc version 3.3.1 (SuSE Linux)

-- 
           Summary: array default initializer in class lets gcc consume all
                    memory and die
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pabel at iam dot uni-bonn dot de
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: Linux 2.4.20-4GB i686


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3/3.4 Regression] array default initializer in class lets gcc consume all memory and die

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-05 23:45 -------
Confirmed a regression from 3.2.3, I am not going to run Phil's regression hunter on this 
because it would cause problems for Phil's machine.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2004-01-05 23:45:36
               date|                            |
            Summary|array default initializer in|[3.3/3.4 Regression] array
                   |class lets gcc consume all  |default initializer in class
                   |memory and die              |lets gcc consume all memory
                   |                            |and die
   Target Milestone|---                         |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3/3.4 Regression] array default initializer in class lets gcc consume all memory and die

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-10 22:11 -------
This should have been rejected just as ICC 6.0 (in strict ANSI mode only).

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3/3.4 Regression] array default initializer in class lets gcc consume all memory and die

[hubicka at gcc dot gnu dot org]

------- Additional Comments From hubicka at gcc dot gnu dot org  2004-01-10 22:18 -------
Note that the memory consumption happens while trying to intialize the array and
taking (unsigned int)-1 as upper bound.#0  0x40093d45 in memset () from
/lib/libc.so.6
#1  0x084f61a7 in ggc_alloc (size=67108852) at ../../gcc/ggc-page.c:1156
#2  0x0832ab45 in ggc_alloc_cleared (size=67108852) at ../../gcc/ggc-common.c:134
#3  0x0832abe2 in ggc_calloc (s1=16777213, s2=4) at ../../gcc/ggc-common.c:188
#4  0x085a12b9 in htab_expand (htab=0x40177780) at ../../libiberty/hashtab.c:393
#5  0x085a149d in htab_find_slot_with_hash (htab=0x40177780, element=0x5acac8fc,
hash=140315878, insert=INSERT)
    at ../../libiberty/hashtab.c:510
#6  0x085a14cf in htab_find_slot (htab=0x40177780, element=0x5acac8fc,
insert=INSERT) at ../../libiberty/hashtab.c:558
#7  0x082d294b in size_int_type_wide (number=6291408, type=0x401799b4) at
../../gcc/fold-const.c:1569
#8  0x082d1662 in int_const_binop (code=PLUS_EXPR, arg1=0x5acac8c0,
arg2=0x4016d94c, notrunc=0) at ../../gcc/fold-const.c:1334
#9  0x082d2aa0 in size_binop (code=PLUS_EXPR, arg0=0x5acac8c0, arg1=0x4016d94c)
at ../../gcc/fold-const.c:1609
#10 0x0815d7a0 in build_zero_init (type=0x4024372c, nelts=0x0,
static_storage_p=false) at ../../gcc/cp/init.c:231
#11 0x0815d8dc in build_default_init (type=0x4024372c, nelts=0x0) at
../../gcc/cp/init.c:296
#12 0x0815dc81 in perform_member_init (member=0x40243798, init=0x0) at
../../gcc/cp/init.c:362
#13 0x0815ee30 in emit_mem_initializers (mem_inits=0x40238ed8) at
../../gcc/cp/init.c:694
#14 0x0817abe3 in finish_mem_initializers (mem_inits=0x40238e88) at
../../gcc/cp/semantics.c:1187
#15 0x08127ed8 in cp_parser_mem_initializer_list (parser=0x40242800) at
../../gcc/cp/parser.c:7063
#16 0x08127db7 in cp_parser_ctor_initializer_opt (parser=0x40242800) at
../../gcc/cp/parser.c:7020
#17 0x0812cdb5 in cp_parser_ctor_initializer_opt_and_function_body
(parser=0x40242800) at ../../gcc/cp/parser.c:11183
#18 0x08131453 in cp_parser_function_definition_after_declarator
(parser=0x40242800, inline_p=true)
    at ../../gcc/cp/parser.c:13989
#19 0x08132047 in cp_parser_late_parsing_for_member (parser=0x40242800,
member_function=0x402433cc)
    at ../../gcc/cp/parser.c:14380
#20 0x0812db6b in cp_parser_class_specifier (parser=0x40242800) at
../../gcc/cp/parser.c:11650
#21 0x08129c5f in cp_parser_type_specifier (parser=0x40242800,
flags=CP_PARSER_FLAGS_OPTIONAL, is_friend=false,
    is_declaration=true, declares_class_or_enum=0xbffff620,
is_cv_qualifier=0xbffff61f) at ../../gcc/cp/parser.c:8541
#22 0x08127813 in cp_parser_decl_specifier_seq (parser=0x40242800,
flags=CP_PARSER_FLAGS_OPTIONAL, attributes=0xbffff66c,
    declares_class_or_enum=0xbffff668) at ../../gcc/cp/parser.c:6652
#23 0x081274df in cp_parser_simple_declaration (parser=0x40242800,
function_definition_allowed_p=true)
    at ../../gcc/cp/parser.c:6382
#24 0x081274ac in cp_parser_block_declaration (parser=0x40242800,
statement_p=false) at ../../gcc/cp/parser.c:6342
#25 0x08127359 in cp_parser_declaration (parser=0x40242800) at
../../gcc/cp/parser.c:6262
#26 0x08127184 in cp_parser_declaration_seq_opt (parser=0x40242800) at
../../gcc/cp/parser.c:6171
#27 0x08122d82 in cp_parser_translation_unit (parser=0x40242800) at
../../gcc/cp/parser.c:2307
#28 0x0813315c in c_parse_file () at ../../gcc/cp/parser.c:15044
#29 0x081f4be8 in c_common_parse_file (set_yydebug=0) at ../../gcc/c-opts.c:1216
#30 0x084b9390 in compile_file () at ../../gcc/toplev.c:1804
#31 0x084be34e in do_compile () at ../../gcc/toplev.c:4611
#32 0x084be3e6 in toplev_main (argc=3, argv=0xbffff834) at ../../gcc/toplev.c:4651
#33 0x081f8fcf in main (argc=3, argv=0xbffff834) at ../../gcc/main.c:35

ibm:~ # 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3/3.4 Regression] array default initializer in class lets gcc consume all memory and die

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |mark at codesourcery dot com
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3 Regression] array default initializer in class lets gcc consume all memory and die

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-01-16 19:28 -------
Fixed in GCC 3.4.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|mark at codesourcery dot com|unassigned at gcc dot gnu
                   |                            |dot org
             Status|ASSIGNED                    |NEW
            Summary|[3.3/3.4 Regression] array  |[3.3 Regression] array
                   |default initializer in class|default initializer in class
                   |lets gcc consume all memory |lets gcc consume all memory
                   |and die                     |and die


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3/3.4 Regression] array default initializer in class lets gcc consume all memory and die

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-16 19:28 -------
Subject: Bug 13574

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2004-01-16 19:28:11

Modified files:
	gcc/cp         : ChangeLog decl.c init.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/ext: array1.C 

Log message:
	PR c++/13574
	* decl.c (compute_array_index_type): Fix grammar in comment.
	* init.c (build_zero_init): Handle zero-sized arrays correctly.
	
	PR c++/13574
	* g++.dg/ext/array1.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3891&r2=1.3892
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&r1=1.1173&r2=1.1174
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/init.c.diff?cvsroot=gcc&r1=1.355&r2=1.356
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3388&r2=1.3389
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/array1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3 Regression] array default initializer in class lets gcc consume all memory and die

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.0                       |3.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3 Regression] array default initializer in class lets gcc consume all memory and die

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-21 08:06 -------
Subject: Bug 13574

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	gdr@gcc.gnu.org	2004-01-21 08:06:38

Modified files:
	gcc/cp         : ChangeLog decl.c init.c 
Added files:
	gcc/testsuite/g++.dg/ext: array1.C 

Log message:
	Backport from mainline
	2004-01-16  Mark Mitchell  <mark@codesourcery.com>
	
	PR c++/13574
	* decl.c (compute_array_index_type): Fix grammar in comment.
	* init.c (build_zero_init): Handle zero-sized arrays correctly.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.241&r2=1.3076.2.242
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.965.2.71&r2=1.965.2.72
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/init.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.299.2.12&r2=1.299.2.13
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/array1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.6.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574

[Bug c++/13574] [3.3 Regression] array default initializer in class lets gcc consume all memory and die

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-01-21 08:07 -------
Fixed with backport from 3.4.0

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13574