[Bug c++/11852] New: ICE: g++ with bad struct initializer.

[Bug c++/11852] New: ICE: g++ with bad struct initializer.

[krh at bitplanet dot net]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11852

           Summary: ICE: g++ with bad struct initializer.
           Product: gcc
           Version: 3.2.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: krh at bitplanet dot net
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: Redhat build, don't know.
  GCC host triplet: i386-redhat-linux
GCC target triplet: i386-redhat-linux

g++ crashes with an ICE on the following program:

  struct bug {
    const char *name;
    unsigned long type;
  };

  struct bug s = { 0, (unsigned long) &s | 1 };

When compiled as C code, gcc says "initializer element is not computable at load
time".

Output of gcc -v:

Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[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=11852


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2003-08-08 12:08:09
               date|                            |
            Summary|ICE: g++ with bad struct    |[3.3/3.4 Regression] ICE:
                   |initializer.                |g++ with bad struct
                   |                            |initializer.
   Target Milestone|3.4                         |3.3.2


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-08 12:08 -------
It did not crash on 2.95.3 (and was accepted).  I can confirm this in 3.3.1 (20030707) and the 
mainline (20030807).
Even 2.97 20001231 crash (according to Phil's regression hunter) and 2.96 (20000731 RedHat) 
crashes.

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[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=11852


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
  GCC build triplet|Redhat build, don't know.   |
           Priority|P2                          |P1

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[falk at debian 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=11852


falk at debian dot org changed:

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


------- Additional Comments From falk at debian dot org  2003-08-08 14:37 -------
This is really ice-on-invalid-code, since a constant expression may contain
addresses only with constant offsets. I can't reproduce the ICE with mainline
20030802 on alphaev68-unknown-linux-gnu.

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[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=11852


pinskia at gcc dot gnu dot org changed:

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


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-08 15:51 -------
Actually it is valid as in C++ you can have initializers which are not constant.  I also can confirm 
this on powerpc-apple-darwin6.6 on the mainline (20030806).

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[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=11852



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-09-07 23:48 -------
Subject: Bug 11852

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2003-09-07 23:48:34

Modified files:
	gcc            : varasm.c ChangeLog 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/init: struct1.C 

Log message:
	PR c++/11852
	* varasm.c (initializer_constant_valid_p): Correct logic for
	CONSTRUCTORs.
	
	PR c++/11852
	* g++.dg/init/struct1.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&r1=1.381&r2=1.382
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1000&r2=2.1001
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3035&r2=1.3036
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/struct1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[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=11852



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-09-07 23:51 -------
Subject: Bug 11852

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	mmitchel@gcc.gnu.org	2003-09-07 23:51:05

Modified files:
	gcc            : varasm.c ChangeLog 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/init: struct1.C 

Log message:
	PR c++/11852
	* varasm.c (initializer_constant_valid_p): Correct logic for
	CONSTRUCTORs.
	
	PR c++/11852
	* g++.dg/init/struct1.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.324.2.7&r2=1.324.2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.728&r2=1.16114.2.729
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.271&r2=1.2261.2.272
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/struct1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1

[Bug c++/11852] [3.3/3.4 Regression] ICE: g++ with bad struct initializer.

[mmitchel 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=11852


mmitchel at gcc dot gnu dot org changed:

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


------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-09-07 23:52 -------
Fixed in GCC 3.3.2, GCC 3.4.