[Bug c++/24278] New: ICE

[Bug c++/24278] New: ICE

[igodard at pacbell dot net]

-- 
           Summary: ICE
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: igodard at pacbell dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] ICE

[igodard at pacbell dot net]

------- Comment #1 from igodard at pacbell dot net  2005-10-08 19:54 -------
Created an attachment (id=9939)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9939&action=view)
compiler output


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] ICE

[igodard at pacbell dot net]

------- Comment #2 from igodard at pacbell dot net  2005-10-08 19:55 -------
Created an attachment (id=9940)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9940&action=view)
source code (compressed)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1 Regression] ICE in build_c_cast, at cp/typeck.c:5238

[rguenth at gcc dot gnu dot org]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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------- Comment #3 from rguenth at gcc dot gnu dot org  2005-10-08 20:16 -------
Confirmed, for 3.4.5 we get

/home/ivan/ootbc/common/include/exception.hh:181: error: type `
Internal compiler error: Error reporting routines re-entered.

while for 4.0 and 4.1 we fail with

/home/ivan/ootbc/common/include/bitset.hh:460:   instantiated from
âbitset<char>â
/home/ivan/ootbc/common/include/bitset.hh:889:   instantiated from here
/home/ivan/ootbc/common/include/bitset.hh:365: internal compiler error: in
build_c_cast, at cp/typeck.c:5231


reducing.


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |3.4.5 4.0.2 4.1.0
      Known to work|                            |3.3.6
            Summary|ICE                         |[3.4/4.0/4.1 Regression] ICE
                   |                            |in build_c_cast, at
                   |                            |cp/typeck.c:5238


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] ICE while trying to print out error

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2005-10-08 22:03 -------
The 4.0 and 4.1 ICEs are dups of PR24277, the 3.4 ICE turned into endless
looping
in

Run till exit from #1  0x0000000000940ff0 in examine_argument (mode=BLKmode, 
    type=0x2a96f4d8f0, in_return=1, int_nregs=0x7fbfffe654,
sse_nregs=0x7fbfffe650)
    at i386.c:2302

trying to reduce that one instead.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] ICE while trying to print out error

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2005-10-09 01:58 -------
Confirmed, reduced testcase:
         template<typename T>  struct throwInfo {       throwInfo(T v) : T(v) {
}     };
         void format(int r) {
       throwInfo<char*>("");
           }


This is invalid code as T(v) is invalid, not a regression.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-10-09 01:58:46
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1 regression] ICE while trying to print out error

[reichelt at gcc dot gnu dot org]

------- Comment #6 from reichelt at gcc dot gnu dot org  2005-11-17 11:08 -------
The following testcase crashes since GCC 2.95.3 except 3.1 and 3.2:

===============================
template<typename T> struct A
{
    A() : T(0) {}
};

A<int*> a;
===============================

The error message with GCC 3.2 was:
  bug.cc: In constructor `A<T>::A() [with T = int*]':
  bug.cc:6:   instantiated from here
  bug.cc:3: type `int*' is not a base type for type `A<int*>'

So we have a regression.


-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
           Keywords|                            |monitored
      Known to fail|3.4.5 4.0.2 4.1.0 3.3.3     |3.4.5 4.0.2 4.1.0 2.95.3
                   |3.0.4 2.95.3                |3.0.4 3.2.1 3.2.3 3.3.6
      Known to work|                            |3.1 3.2
            Summary|ICE while trying to print   |[3.4/4.0/4.1 regression] ICE
                   |out error                   |while trying to print out
                   |                            |error
   Target Milestone|---                         |4.0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1/4.2 regression] ICE while trying to print out error

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           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=24278

[Bug c++/24278] [3.4/4.0/4.1/4.2 regression] ICE while trying to print out error

[steven at gcc dot gnu dot org]

------- Comment #7 from steven at gcc dot gnu dot org  2005-12-18 16:04 -------
comment #6 says "invalid code".  So is this an ICE on valid, or _invalid_ code?

Anyway,

Starting program: /abuild/stevenb/build/gcc/cc1plus t.C
 A<T>::A()
Breakpoint 4, expand_member_init (name=0x401c9958) at init.c:950
950       if (!current_class_ref)
(gdb) cont
Continuing.
 A<T>::A() [with T = int*]
Breakpoint 4, expand_member_init (name=0x40153c38) at init.c:950
950       if (!current_class_ref)
(gdb) next
953       if (!name)
(gdb) p debug_generic_expr(name)
intD.2 *
$9 = void
(gdb) next
973       else if (TYPE_P (name))
(gdb)
975           basetype = TYPE_MAIN_VARIANT (name);
(gdb)
976           name = TYPE_NAME (name);
(gdb)
983       if (basetype)
(gdb) p debug_generic_expr(name)

$10 = void
(gdb) p debug_generic_expr(basetype)
intD.2 *
$11 = void
(gdb) 

So we have nullified name.  Then we go on to the error message without a name:

(gdb) b init.c:1025
Breakpoint 5 at 0x815c5fb: file init.c, line 1025.
(gdb) cont
Continuing.

Breakpoint 5, expand_member_init (name=0x0) at init.c:1025
1025                error ("type %qD is not a direct base of %qT",
(gdb) l
1020            {
1021              if (CLASSTYPE_VBASECLASSES (current_class_type))
1022                error ("type %qD is not a direct or virtual base of %qT",
1023                       name, current_class_type);
1024              else
1025                error ("type %qD is not a direct base of %qT",
1026                       name, current_class_type);
1027              return NULL_TREE;
1028            }
1029
(gdb) p name
$12 = 0x0
(gdb) 

Obviously we ICE when we try to print the NULL name.


-- 

steven at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1/4.2 regression] ICE while trying to print out error

[mmitchel at gcc dot gnu dot org]

------- Comment #8 from mmitchel at gcc dot gnu dot org  2005-12-20 04:59 -------
Subject: Bug 24278

Author: mmitchel
Date: Tue Dec 20 04:59:42 2005
New Revision: 108840

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108840
Log:
        PR c++/24278
        * init.c (expand_member_init): Print messages about baseclasses
        using %T rather than %D.
        PR c++/24278
        * g++.dg/template/ctor5.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/template/ctor5.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1/4.2 regression] ICE while trying to print out error

[mmitchel at gcc dot gnu dot org]

------- Comment #10 from mmitchel at gcc dot gnu dot org  2005-12-20 05:34 -------
Subject: Bug 24278

Author: mmitchel
Date: Tue Dec 20 05:34:22 2005
New Revision: 108843

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108843
Log:
        PR c++/24278
        * init.c (expand_member_init): Print messages about baseclasses
        using %T rather than %D.
        PR c++/24278
        * g++.dg/template/ctor5.C: New test.

Added:
    branches/gcc-4_1-branch/gcc/testsuite/g++.dg/template/ctor5.C
Modified:
    branches/gcc-4_1-branch/gcc/cp/ChangeLog
    branches/gcc-4_1-branch/gcc/cp/init.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1/4.2 regression] ICE while trying to print out error

[mmitchel at gcc dot gnu dot org]

------- Comment #9 from mmitchel at gcc dot gnu dot org  2005-12-20 05:34 -------
Subject: Bug 24278

Author: mmitchel
Date: Tue Dec 20 05:33:58 2005
New Revision: 108842

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108842
Log:
        PR c++/24278
        * init.c (expand_member_init): Print messages about baseclasses
        using %T rather than %D.
        PR c++/24278
        * g++.dg/template/ctor5.C: New test.

Added:
    branches/gcc-4_0-branch/gcc/testsuite/g++.dg/template/ctor5.C
Modified:
    branches/gcc-4_0-branch/gcc/cp/ChangeLog
    branches/gcc-4_0-branch/gcc/cp/init.c
    branches/gcc-4_0-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4/4.0/4.1/4.2 regression] ICE while trying to print out error

[mmitchel at gcc dot gnu dot org]

------- Comment #11 from mmitchel at gcc dot gnu dot org  2005-12-20 05:34 -------
Fixed in 4.0.3, 4.1.


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|mark at codesourcery dot com|unassigned at gcc dot gnu
                   |                            |dot org
             Status|ASSIGNED                    |NEW
   Target Milestone|4.0.3                       |3.4.6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4 regression] ICE while trying to print out error

[reichelt at gcc dot gnu dot org]

------- Comment #12 from reichelt at gcc dot gnu dot org  2006-01-31 20:27 -------
Taking care of the backport.


-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |reichelt at gcc dot gnu dot
                   |dot org                     |org
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2006-
                   |                            |01/msg02232.html
             Status|NEW                         |ASSIGNED
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4 regression] ICE while trying to print out error

[reichelt at gcc dot gnu dot org]

------- Comment #13 from reichelt at gcc dot gnu dot org  2006-02-01 11:46 -------
Subject: Bug 24278

Author: reichelt
Date: Wed Feb  1 11:46:53 2006
New Revision: 110471

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110471
Log:
        Backport:
        2005-12-19  Mark Mitchell  <mark@codesourcery.com>

        PR c++/24278
        * init.c (expand_member_init): Print messages about baseclasses
        using %T rather than %D.

        * g++.dg/template/ctor5.C: New test.

Added:
    branches/gcc-3_4-branch/gcc/testsuite/g++.dg/ext/ctor5.C
Modified:
    branches/gcc-3_4-branch/gcc/cp/ChangeLog
    branches/gcc-3_4-branch/gcc/cp/init.c
    branches/gcc-3_4-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278

[Bug c++/24278] [3.4 regression] ICE while trying to print out error

[reichelt at gcc dot gnu dot org]

------- Comment #14 from reichelt at gcc dot gnu dot org  2006-02-01 11:48 -------
Now also fixed on the 3.4 branch.


-- 

reichelt at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24278