[Bug middle-end/20635] New: [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[Bug middle-end/20635] New: [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[jakub at gcc dot gnu dot org]

PR middle-end/20225 introduced a regression on the following testcase at -O2.

void fn1 (void *);
void fn2 (void *);
void foo (void);
void bar (void);

extern inline void *
baz (void)
{
  return 0;
}

void
foo (void)
{
  fn1 (baz ());
  fn2 (baz ());
}

void
bar (void)
{
  fn1 (baz ());
  fn2 (baz);
}

-- 
           Summary: [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: critical
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[jakub at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[pluto at pld-linux dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pluto at pld-linux dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[schwab at suse dot de]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |20225
              nThis|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-03-25 14:12:19
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[hubicka at gcc dot gnu dot org]

------- Additional Comments From hubicka at gcc dot gnu dot org  2005-03-27 19:41 -------
How this is supposed to be failing?  I do get undefined reference to baz, but same I do get with my system compiler here and it seem to be right as baz is extern inline function....

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[hubicka at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[jakub at gcc dot gnu dot org]

------- Additional Comments From jakub at gcc dot gnu dot org  2005-03-27 20:47 -------
LC_ALL=C ./xgcc -B ./ pr20635.c  -O2 -v
Reading specs from ./specs
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --enable-languages=c,c++ : (reconfigured)
../configure --enable-languages=c,c++ --no-create --no-recursion
Thread model: posix
gcc version 4.1.0 20050327 (experimental)
 ./cc1 -quiet -v -iprefix
/usr/src/gcc/obj/gcc/../lib/gcc/x86_64-unknown-linux-gnu/4.1.0/ -isystem
./include pr20635.c -quiet -dumpbase pr20635.c -mtune=k8 -auxbase pr20635 -O2
-version -o /tmp/ccmjI4n7.s
ignoring nonexistent directory
"/usr/src/gcc/obj/gcc/../lib/gcc/x86_64-unknown-linux-gnu/4.1.0/include"
ignoring nonexistent directory
"/usr/src/gcc/obj/gcc/../lib/gcc/x86_64-unknown-linux-gnu/4.1.0/../../../../x86_64-unknown-linux-gnu/include"
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory
"/usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.1.0/include"
ignoring nonexistent directory
"/usr/local/lib/../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 ./include
 /usr/local/include
 /usr/include
End of search list.
GNU C version 4.1.0 20050327 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 3.4.3 20050221 (Red Hat 3.4.3-20).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
pr20635.c: In function 'bar':
pr20635.c:24: internal compiler error: in cgraph_mark_reachable_node, at
cgraph.c:473
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Similarly on gcc-4_0-branch:
...
GNU C version 4.0.0 20050325 (prerelease) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 3.4.3 20050221 (Red Hat 3.4.3-20).
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=128053
pr20635.c: In function 'bar':
pr20635.c:24: internal compiler error: in cgraph_mark_reachable_node, at
cgraph.c:477
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
   Last reconfirmed|2005-03-25 14:12:19         |2005-03-27 20:47:43
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[jakub at gcc dot gnu dot org]

------- Additional Comments From jakub at gcc dot gnu dot org  2005-03-27 20:55 -------
Forgot to add, this testcase was meant for gcc.c-torture/compile, i.e. an
compile test only.  It of course won't link, because baz is extern inline.
But it should compile.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[hubicka at gcc dot gnu dot org]

------- Additional Comments From hubicka at gcc dot gnu dot org  2005-03-27 21:42 -------
I see I forgot my tree with checking enabled.  This is obviously latent bug in handling extern inline functions, I am looking into it.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jh at suse dot cz
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-03-28 14:10 -------
Subject: Bug 20635

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	hubicka@gcc.gnu.org	2005-03-28 14:10:05

Modified files:
	gcc            : ChangeLog varasm.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/compile: 20050328-1.c 

Log message:
	PR middle-end/20635
	* varasm.c (mark_decl_referenced): Do not mark extern inline functions
	as needed.
	
	* compile/gcc.c-torture/compile/20050328-1.c: New testcase made
	by Jakub Jelinek.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8005&r2=2.8006
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&r1=1.485&r2=1.486
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5225&r2=1.5226
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20050328-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0/4.1 Regression] ICE in cgraph_mark_reachable_node

[gschafer at zip dot com dot au]

------- Additional Comments From gschafer at zip dot com dot au  2005-03-29 04:53 -------
I just hit this trying to compile psmisc-21.6 with snapshot gcc-4.0-20050326:

pstree.c: In function 'dump_tree':
pstree.c:539: internal compiler error: in cgraph_mark_reachable_node, at
cgraph.c:477

I'll apply the patch and report back later if it fixes the problem. Would be
nice to get this applied on the 4.0 branch. Thanks.



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gschafer at zip dot com dot
                   |                            |au


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0 Regression] ICE in cgraph_mark_reachable_node

[gschafer at zip dot com dot au]

------- Additional Comments From gschafer at zip dot com dot au  2005-03-29 23:41 -------
(In reply to comment #6)
> I'll apply the patch and report back later if it fixes the problem. Would be
> nice to get this applied on the 4.0 branch. Thanks.

It did indeed fix the problem. Thanks.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0 Regression] ICE in cgraph_mark_reachable_node

[jh at suse dot cz]

------- Additional Comments From jh at suse dot cz  2005-03-29 23:48 -------
Subject: Re:  [4.0 Regression] ICE in cgraph_mark_reachable_node

> 
> ------- Additional Comments From gschafer at zip dot com dot au  2005-03-29 23:41 -------
> (In reply to comment #6)
> > I'll apply the patch and report back later if it fixes the problem. Would be
> > nice to get this applied on the 4.0 branch. Thanks.
> 
> It did indeed fix the problem. Thanks.

I didn't hat time to look closer into the patch yet, but won't we run
into symmetric problem with aliased functions too?

Thanks for fixing the problem!
Honza
> 
> -- 
> 
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635
> 
> ------- You are receiving this mail because: -------
> You are the assignee for the bug, or are watching the assignee.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0 Regression] ICE in cgraph_mark_reachable_node

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-04-01 12:41 -------
Subject: Bug 20635

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	hubicka@gcc.gnu.org	2005-04-01 12:41:19

Modified files:
	gcc            : ChangeLog varasm.c 

Log message:
	PR middle-end/20635
	* varasm.c (mark_decl_referenced): Do not mark extern inline functions
	as needed.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.108&r2=2.7592.2.109
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/varasm.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.477.6.6&r2=1.477.6.7



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635

[Bug middle-end/20635] [4.0 Regression] ICE in cgraph_mark_reachable_node

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-01 13:11 -------
Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20635