[Bug tree-optimization/22216] New: [4.1 regression] ICE during GC

[Bug tree-optimization/22216] New: [4.1 regression] ICE during GC

[schwab at suse dot de]

Broken by patch from PR21959. 
 
$ stage1/xgcc -Bstage1/ -B/usr/local/ia64-suse-linux/bin/ -c -g -O2      
-gnatpg -gnata -I- -I. -Iada -I../../gcc/ada ../../gcc/ada/par.adb -o 
ada/par.o -v 
Reading specs from stage1/specs 
Target: ia64-suse-linux 
Configured with: ../configure --host=ia64-suse-linux --enable-shared 
--enable-threads --enable-__cxa_atexit --with-system-zlib 
--with-system-libunwind 
Thread model: posix 
gcc version 4.1.0 20050628 (experimental) 
 stage1/gnat1 -I- -I. -Iada -I../../gcc/ada -quiet -dumpbase par.adb -O2 -g 
-gnatpg -gnata -gnatO ada/par.o ../../gcc/ada/par.adb -o /tmp/cccUDAec.s 
+===========================GNAT BUG DETECTED==============================+ 
| 4.1.0 20050628 (experimental) (ia64-suse-linux-gnu) Segmentation fault   | 
| Error detected at par.adb:1442:14                                        | 
 
Starting program: /tmp/cvs/gcc-20050628/Build/gcc/stage1/gnat1 -I- -I. -Iada 
-I../../gcc/ada -quiet -dumpbase par.adb -O2 -g -gnatpg -gnata -gnatO 
ada/par.o ../../gcc/ada/par.adb 
 
Program received signal SIGSEGV, Segmentation fault. 
gt_ggc_mx_basic_block_def (x_p=0x0) at gtype-desc.c:402 
402	{ 
(gdb) bt 
#0  gt_ggc_mx_basic_block_def (x_p=0x0) at gtype-desc.c:402 
#1  0x400000000096b120 in gt_ggc_mx_rtx_def (x_p=0x20000000032d2670) 
    at gtype-desc.c:846 
#2  0x400000000096a090 in gt_ggc_mx_rtx_def (x_p=0x20000000032d2670) 
    at gtype-desc.c:846 
#3  0x400000000096e820 in gt_ggc_mx_function (x_p=0x200000000072d600) 
    at gtype-desc.c:565 
#4  0x4000000000041910 in gt_ggc_mx_lang_tree_node (x_p=0x20000000004509c0) 
    at gtype-ada.h:25 
#5  0x4000000000041090 in gt_ggc_mx_lang_tree_node (x_p=0x200000000030ce70) 
    at gtype-ada.h:25 
#6  0x4000000000041070 in gt_ggc_mx_lang_tree_node (x_p=0x200000000030ce00) 
    at gtype-ada.h:25 
#7  0x4000000000041370 in gt_ggc_mx_lang_tree_node (x_p=0x20000000003def20) 
    at gtype-ada.h:25 
#8  0x40000000000413d0 in gt_ggc_mx_lang_tree_node (x_p=0x20000000004768a0) 
    at gtype-ada.h:25 
#9  0x40000000000413d0 in gt_ggc_mx_lang_tree_node (x_p=0x2000000001de12b0) 
    at gtype-ada.h:25 
#10 0x40000000000413d0 in gt_ggc_mx_lang_tree_node (x_p=0x2000000001e7d6c0) 
    at gtype-ada.h:25 
#11 0x4000000000966820 in gt_ggc_mx_reg_attrs (x_p=0x20000000029656d0) 
    at gtype-desc.c:438 
#12 0x4000000000969e20 in gt_ggc_mx_rtx_def (x_p=0x0) at gtype-desc.c:846 
#13 0x4000000000952a00 in ggc_mark_roots () at ggc-common.c:118 
#14 0x4000000000b4f840 in ggc_collect () at ggc-page.c:1972 
#15 0x4000000000b58b60 in rest_of_compilation () at passes.c:423 
#16 0x40000000005d04f0 in execute_one_pass (pass=0x600000000000e840) 
    at tree-optimize.c:665 
#17 0x40000000005d07e0 in execute_pass_list (pass=0x600000000000e840) 
    at tree-optimize.c:748 
#18 0x40000000005d0e00 in tree_rest_of_compilation (fndecl=0x20000000004509c0) 
    at tree-optimize.c:914 
#19 0x4000000000039410 in gnat_expand_body (gnu_decl=0x20000000004509c0) 
    at misc.c:635 
#20 0x4000000000bd8030 in cgraph_expand_function (node=0x2000000001a4f330) 
    at cgraphunit.c:1033 
#21 0x4000000000bdc080 in cgraph_optimize () at cgraphunit.c:1099 
#22 0x400000000003a9c0 in gnat_parse_file (set_yydebug=11478448) at misc.c:245 
#23 0x4000000000af25b0 in toplev_main (argc=241376, argv=0x600000000003aef8) 
    at toplev.c:1930 
#24 0x40000000005bd430 in main (argc=241376, argv=0x600000000003aef8) 
    at main.c:35

-- 
           Summary: [4.1 regression] ICE during GC
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, build
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schwab at suse dot de
                CC: dnovillo at gcc dot gnu dot org,gcc-bugs at gcc dot gnu
                    dot org
GCC target triplet: ia64-*-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[dnovillo at redhat dot com]

------- Additional Comments From dnovillo at redhat dot com  2005-06-28 12:16 -------
Subject: Re:  New: [4.1 regression] ICE during GC

On Tue, Jun 28, 2005 at 11:52:20AM -0000, schwab at suse dot de wrote:
> Broken by patch from PR21959. 
>  
Are you sure?  Kenner seemed to get good results from that patch.
If this was introduced by that patch, then it must've triggered a
latent bug elsewhere.  The patch merely prevented transformation
opportunities in VRP.

> #14 0x4000000000b4f840 in ggc_collect () at ggc-page.c:1972 
> #15 0x4000000000b58b60 in rest_of_compilation () at passes.c:423 
> #16 0x40000000005d04f0 in execute_one_pass (pass=0x600000000000e840) 
>     at tree-optimize.c:665 
>
Show me '*pass'?


Diego.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2005-06-28 12:42 -------
> Are you sure? 
 
Yes. 
 
> Show me '*pass'? 
 
$1 = {name = 0x0, gate = 0,  
  execute = @0x4000000001013990: 0x4000000000b569d0 <rest_of_compilation>,  
  sub = 0x0, next = 0x0, static_pass_number = -1, tv_id = 116,  
  properties_required = 267, properties_provided = 11,  
  properties_destroyed = 256, todo_flags_start = 0, todo_flags_finish = 2,  
  letter = 0 '\0'} 
 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[dnovillo at redhat dot com]

------- Additional Comments From dnovillo at redhat dot com  2005-06-28 12:52 -------
Subject: Re:  [4.1 regression] ICE during GC

On Tue, Jun 28, 2005 at 12:42:03PM -0000, schwab at suse dot de wrote:

> $1 = {name = 0x0, gate = 0,  
>   execute = @0x4000000001013990: 0x4000000000b569d0 <rest_of_compilation>,  
>   sub = 0x0, next = 0x0, static_pass_number = -1, tv_id = 116,  
>   properties_required = 267, properties_provided = 11,  
>   properties_destroyed = 256, todo_flags_start = 0, todo_flags_finish = 2,  
>   letter = 0 '\0'} 
>  
Huh, well that tells me nothing.  If my ia64 supports Ada, I'll
try to take a look, otherwise you'll have to debug this yourself.


Diego.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-28 13:29 -------
Looking at the backtrace, it looks more like one of Honza's patches rather than the patch for PR21959.
On more likely the following patch (as I got a clean bootstrap on powerpc-darwin with no problems 
before this, I have not tried after though):
-2005-06-28  Jan Hubicka  <jh@suse.cz>
-
-       * cgraph.c (cgraph_remove_node): Do not release function bodies until
-       full cgraph is built.
....

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jh at suse dot cz
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[dnovillo at redhat dot com]

------- Additional Comments From dnovillo at redhat dot com  2005-06-28 14:18 -------
Subject: Re:  [4.1 regression] ICE during GC

On Tue, Jun 28, 2005 at 12:42:03PM -0000, schwab at suse dot de wrote:

> > Are you sure? 
>  
> Yes. 
>  
You need to check your script then.  The patch for 21959 had
nothing to do with this failure.  I get the same ICE without that
patch.


Diego.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[dnovillo at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|dnovillo at gcc dot gnu dot |
                   |org                         |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-07-09 16:40 -------
Does this work now?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2005-07-09 17:15 -------
I can't reproduce it any more.  Whether it's gone dormant again or fixed for  
real I don't know.  

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[jh at suse dot cz]

------- Additional Comments From jh at suse dot cz  2005-07-09 17:50 -------
Subject: Re:  [4.1 regression] ICE during GC

> 
> ------- Additional Comments From schwab at suse dot de  2005-07-09 17:15 -------
> I can't reproduce it any more.  Whether it's gone dormant again or fixed for  
> real I don't know.  
I've bootstrapped with gcac from tree about a week old and it went
fluently, so hopefully it is fixed somehow.

Honza
> 
> -- 
> 
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216
> 
> ------- You are receiving this mail because: -------
> You are on the CC list for the bug, or are watching someone who is.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-07-10 18:34 -------
So closing as fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2005-07-17 19:49 -------
Definitely not fixed. 

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2005-07-26 23:29 -------
Why "definitely not fixed"?  You weren't so sure in comment #7.  Did the 
failure re-surface for you now? 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2005-07-26 23:48 -------
Yes, it did, for more than a week now, after being hidden for 2 weeks. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug tree-optimization/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |GC


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug middle-end/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|tree-optimization           |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216

[Bug middle-end/22216] [4.1 regression] ICE during GC

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-31 16:00 -------
>From the backtrace, this looks like PR 23651.  I wonder what root is this from.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |23651


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22216