[Bug debug/14114] New: ICE in gen_subprogram_die

[Bug debug/14114] New: ICE in gen_subprogram_die

[gcc-bugzilla at gcc dot gnu dot org]

gcc crashes compiling the C code below, if both debugging and optimization
are on:

$ ./cc1 x.c -quiet -g -O2
x.c: In function `a':
x.c:5: internal compiler error: in gen_subprogram_die, at dwarf2out.c:10696
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
$
[sss@karma gcc]
It's tripping over this abort in gen_subprogram_die:

	  /* ??? This can happen if there is a bug in the program, for
	     instance, if it has duplicate function definitions.  Ideally,
	     we should detect this case and ignore it.  For now, if we have
	     already reported an error, any error at all, then assume that
	     we got here because of an input error, not a dwarf2 bug.  */
	  if (errorcount)
	    return;
	  abort ();

Environment:
System: Linux karma 2.6.1 #10 Tue Feb 10 04:31:35 EST 2004 i686 i686 i386 GNU/Linux
Architecture: i686

	<machine, os, target, libraries (multiple lines)>
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure --prefix=/usr/local/gcc --enable-threads=posix --enable-long-long --enable-languages=c,c++,f77

How-To-Repeat:

Compile with -g -O2:

---------------------------------------
void a()
{
  void c();
  c();
}

void b()
{
  void c();
}

void c() {}
---------------------------------------
------- Additional Comments From snyder at fnal dot gov  2004-02-11 20:06 -------
Fix:
	<how to correct or work around the problem, if known (multiple lines)>

-- 
           Summary: ICE in gen_subprogram_die
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: snyder at fnal dot gov
                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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug debug/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-02-11 20:47 -------
Confirmed, this is an unit-at-a-time problem.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2004-02-11 20:47:53
               date|                            |
            Summary|ICE in gen_subprogram_die   |[3.4/3.5 Regression] [unit-
                   |                            |at-a-time] ICE in
                   |                            |gen_subprogram_die
   Target Milestone|---                         |3.4.0
            Version|3.4                         |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug debug/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-02-11 20:53 -------
Or it could be caused by Zack's rewrite of c-decl.c I do not know which one because they interact with 
each other.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zack at gcc dot gnu dot org
      Known to fail|                            |3.4.0 3.5.0
      Known to work|                            |3.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug debug/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-02-13 15:11 -------
*** Bug 14139 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jkillius at arcor dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug debug/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2004-03-01 20:27 -------
Investigating.


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2004-03-06 09:23 -------
We eventually sort of agreed that this is a C front-end problem.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|debug                       |c


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-06 09:28 -------
Subject: Bug 14114

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	ebotcazou@gcc.gnu.org	2004-03-06 09:28:51

Modified files:
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: decl-5.c 

Log message:
	PR c/14114
	* gcc.dg/decl-5.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3572&r2=1.3573
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/decl-5.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-06 09:39 -------
Subject: Bug 14114

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	ebotcazou@gcc.gnu.org	2004-03-06 09:39:18

Modified files:
	gcc            : ChangeLog c-decl.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: decl-5.c 

Log message:
	PR c/14114
	* c-decl (pushdecl): Do not record a previous, not-in-scope,
	external decl for restoration.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.294&r2=2.2326.2.295
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-decl.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.470.4.6&r2=1.470.4.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.123&r2=1.3389.2.124
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/decl-5.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.5 Regression] ICE in gen_subprogram_die

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2004-03-06 09:46 -------
Fixed on the 3.4 branch: http://gcc.gnu.org/ml/gcc-patches/2004-03/msg00258.html

Zack doesn't want the patch to interfere with his new c-decl.c rewrite.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|ebotcazou at gcc dot gnu dot|zack at gcc dot gnu dot org
                   |org                         |
            Summary|[3.4/3.5 Regression] [unit- |[3.5 Regression] ICE in
                   |at-a-time] ICE in           |gen_subprogram_die
                   |gen_subprogram_die          |
   Target Milestone|3.4.0                       |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.5 Regression] ICE in gen_subprogram_die

[ebotcazou at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|zack at gcc dot gnu dot org |
   Target Milestone|3.5.0                       |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.5 Regression] ICE in gen_subprogram_die

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-07 00:39 -------
Subject: Bug 14114

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	ebotcazou@gcc.gnu.org	2004-03-07 00:39:03

Modified files:
	gcc            : ChangeLog c-decl.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: decl-6.c 

Log message:
	PR c/14465
	PR c/14114
	* c-decl (pushdecl): Revert previous change.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.297&r2=2.2326.2.298
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-decl.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.470.4.7&r2=1.470.4.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.125&r2=1.3389.2.126
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/decl-6.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2004-03-11 06:32 -------
Patch: http://gcc.gnu.org/ml/gcc-patches/2004-03/msg00724.html

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mmitchel at gcc dot gnu dot
                   |                            |org
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[mark at codesourcery dot com]

------- Additional Comments From mark at codesourcery dot com  2004-03-13 15:44 -------
Subject: Re:  [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

This patch is OK for 3.4.0.



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.4/3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-13 19:05 -------
Subject: Bug 14114

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	ebotcazou@gcc.gnu.org	2004-03-13 19:05:48

Modified files:
	gcc            : ChangeLog c-decl.c 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/gcc.dg: decl-5.c 

Log message:
	PR c/14114
	* c-decl.c (merge_decls): Do not copy the C_DECL_INVISIBLE flag
	from the new decl to the old decl.
	(pushdecl): Use lookup_name to search for a previous decl with the
	same identifier.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.339&r2=2.2326.2.340
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-decl.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.470.4.9&r2=1.470.4.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.143&r2=1.3389.2.144
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/decl-5.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.1.2.3&r2=1.1.2.4



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] 3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2004-03-13 19:08 -------
Fixed on 3.4 branch.

Zack, I reassign the PR to you.  Let me know if I can do anything else.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu dot
                   |                            |org
         AssignedTo|ebotcazou at gcc dot gnu dot|zack at gcc dot gnu dot org
                   |org                         |
      Known to fail|3.4.0 3.5.0                 |3.5.0
      Known to work|3.3.3                       |3.3.3 3.4.0
            Summary|[3.4/3.5 Regression] [unit- |3.5 Regression] [unit-at-a-
                   |at-a-time] ICE in           |time] ICE in
                   |gen_subprogram_die          |gen_subprogram_die


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.0                       |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2004-03-16 20:57 -------
Fixed by the c-decl.c rewrite:
http://gcc.gnu.org/ml/gcc-patches/2004-03/msg01280.html

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114

[Bug c/14114] [3.5 Regression] [unit-at-a-time] ICE in gen_subprogram_die

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2004-03-23 23:54 -------
Now fixed in 3.5.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14114