[Bug tree-optimization/15741] New: ICE: SEGV in unchecked_make_edge

[Bug tree-optimization/15741] New: ICE: SEGV in unchecked_make_edge

[green at redhat dot com]

I discovered this while building xerces from rhug. 

public final class  Base64 {
    public static String decode(String base64Data) {
        try {
            System.out.println ("Hello");
        } catch(Exception e) {
        }
        finally {
            return null;
        }
    }
}
                                                                                
$ gcj -O2 Base64.java  -c
Base64.java: In class `Base64':
Base64.java: In method `Base64.decode(java.lang.String)':
Base64.java:2: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


Here's a stack trace:

Program received signal SIGSEGV, Segmentation fault.
0x081d7d9f in unchecked_make_edge (src=0xf6d6c984, dst=0x0, flags=10)
    at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:284
284       e->pred_next = dst->pred;
(gdb) where
#0  0x081d7d9f in unchecked_make_edge (src=0xf6d6c984, dst=0x0, flags=10)
    at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:284
#1  0x081d7eaf in cached_make_edge (edge_cache=0x0, src=0xf6d6c984, dst=0x0,
    flags=10) at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:332
#2  0x081d7f2c in make_edge (src=0xf6d6c984, dest=0x0, flags=10)
    at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:346
#3  0x0812951d in make_eh_edge (region=0xf6d6a380, data=0xf6d88d3c)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-eh.c:1646
#4  0x08240170 in add_reachable_handler (info=0xfef52a30,
    lp_region=0xf6d6a380, region=0xf6d6a380)
    at /home/green/sources/jhbuild-src/gcc/gcc/except.c:2827
#5  0x082401b1 in reachable_next_level (region=0xf6d6a380, type_thrown=0x0,
    info=0xfef52a30) at /home/green/sources/jhbuild-src/gcc/gcc/except.c:2845
#6  0x08240547 in foreach_reachable_handler (region_number=2, is_resx=false,
    callback=0x81294ce <make_eh_edge>, callback_data=0xf6d88d3c)
    at /home/green/sources/jhbuild-src/gcc/gcc/except.c:3028
#7  0x08129641 in make_eh_edges (stmt=0xf6d88d3c)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-eh.c:1668
#8  0x08110bf3 in make_exit_edges (bb=0xf6d6c984)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:559
#9  0x081107b8 in make_edges ()
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:442
#10 0x08110097 in build_tree_cfg (tp=0xf6df3fc4)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:173
#11 0x08110133 in execute_build_cfg ()
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:196
#12 0x0812d9bf in execute_one_pass (pass=0x861e420)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:406
#13 0x0812da63 in execute_pass_list (pass=0x861e420)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:435
#14 0x0812da81 in execute_pass_list (pass=0x861e740)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:436
#15 0x0812dd9d in tree_rest_of_compilation (fndecl=0xf6df3f68, nested_p=false)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:530
#16 0x080caad2 in java_expand_body (fndecl=0xf6df3f68)
    at /home/green/sources/jhbuild-src/gcc/gcc/java/decl.c:1846
#17 0x084f46ae in cgraph_expand_function (node=0xf6d72f68)
    at /home/green/sources/jhbuild-src/gcc/gcc/cgraphunit.c:794
#18 0x084f652a in cgraph_expand_all_functions ()
    at /home/green/sources/jhbuild-src/gcc/gcc/cgraphunit.c:1668
#19 0x084f680b in cgraph_optimize ()
    at /home/green/sources/jhbuild-src/gcc/gcc/cgraphunit.c:1758
#20 0x080efb95 in java_parse_file (set_yydebug=0)
    at /home/green/sources/jhbuild-src/gcc/gcc/java/jcf-parse.c:1123
#21 0x08486e28 in compile_file ()
    at /home/green/sources/jhbuild-src/gcc/gcc/toplev.c:1653

-- 
           Summary: ICE: SEGV in unchecked_make_edge
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: green at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-05-31 01:57 -------
Confirmed, I think this is fixed by though:
2004-05-30  Steven Bosscher  <stevenb@suse.de>

        * gimplify.c (sort_case_labels): New.  Split out from...
        (gimplify_switch_expr): ...here.  Use it.
        * tree-eh.c (lower_try_finally_switch): Sort the labels of
        the SWITCH_EXPR created here before leaving the function.
        * tree.c (sort_case_labels): Add prototype.

I will test tommorrow around noon EDT after my daily build/test is done.
If you can test before it would be nice.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |WAITING
           Keywords|                            |ice-on-valid-code
            Summary|ICE: SEGV in                |[3.5 Regression] ICE: SEGV
                   |unchecked_make_edge         |in unchecked_make_edge
   Target Milestone|---                         |3.5.0
            Version|unknown                     |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |steven at gcc dot gnu dot
                   |                            |org
             Status|WAITING                     |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-05-31 02:22:21
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[green at redhat dot com]

------- Additional Comments From green at redhat dot com  2004-06-01 22:42 -------
(In reply to comment #1)
> Confirmed, I think this is fixed by though:
> 2004-05-30  Steven Bosscher  <stevenb@suse.de>
> 

No, it is not fixed by this.  I already had that patch in my compiler.  This is
still a bug.



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-01 22:45 -------
But should be fixed when this patch gets approved and applied: <http://gcc.gnu.org/ml/gcc-patches/
2004-06/msg00059.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[rmathew at gcc dot gnu dot org]

------- Additional Comments From rmathew at gcc dot gnu dot org  2004-06-02 07:21 -------
I was facing a very similar issue, which was fixed by:

  http://gcc.gnu.org/ml/gcc-patches/2004-06/msg00059.html

(At the time of writing this, it has not yet been approved
or applied.)

See if it solves your problem too.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-06-02 08:00 -------
Geez, might as well take this one if my patch fixes it.
After all I was also responsible for this breakage ;-)


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[green at redhat dot com]

------- Additional Comments From green at redhat dot com  2004-06-02 15:01 -------
Steven's patch does appear to fix the problem.  Hopefully somebody will approve
it soon.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741

[Bug tree-optimization/15741] [3.5 Regression] ICE: SEGV in unchecked_make_edge

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-04 13:21 -------
Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741