[Bug tree-optimization/34467] New: [4.3 Regression] ICE in lookup_subvars_for_var, at tree-flow-inline.h:1586

[Bug tree-optimization/34467] New: [4.3 Regression] ICE in lookup_subvars_for_var, at tree-flow-inline.h:1586

[tbm at cyrius dot com]

With trunk from 2007-12-12 on Alpha:

(sid)tbm@lima:~$ /usr/lib/gcc-snapshot/bin/gcc -c -O3 gtk-gnutella-host_addr.c
gtk-gnutella-host_addr.c: In function 'socket_addr_set':
gtk-gnutella-host_addr.c:17: internal compiler error: in
lookup_subvars_for_var, at tree-flow-inline.h:1586
Please submit a full bug report,
with preprocessed source if appropriate.


-- 
           Summary: [4.3 Regression] ICE in lookup_subvars_for_var, at tree-
                    flow-inline.h:1586
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
GCC target triplet: alpha-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34467

[Bug tree-optimization/34467] [4.3 Regression] ICE in lookup_subvars_for_var, at tree-flow-inline.h:1586

[tbm at cyrius dot com]

------- Comment #1 from tbm at cyrius dot com  2007-12-14 20:04 -------
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */

typedef struct host_addr
{
  union
  {
    char ipv6[2];
  }
  addr;
}
host_addr_t;
static const host_addr_t ipv4_unspecified = {
  { 0, 0 }
};
void socket_addr_set (const host_addr_t addr)
{
  socket_addr_set (ipv4_unspecified);
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34467

[Bug middle-end/34467] [4.3 Regression] ICE in lookup_subvars_for_var, at tree-flow-inline.h:1586

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2007-12-14 23:02 -------
alpha seems to use a different initializer for addr, 'C.0', compared to i686,
which just uses ipv4_unspecified in setup_one_parameter during recursively
inlining the call.

This initializer is never referenced before and thus doesn't have its var
annotation created.

But - confirmed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|tree-optimization           |middle-end
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-12-14 23:02:28
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34467

[Bug middle-end/34467] [4.3 Regression] ICE in lookup_subvars_for_var, at tree-flow-inline.h:1586

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34467

[Bug middle-end/34467] [4.3 Regression] ICE in lookup_subvars_for_var, at tree-flow-inline.h:1586

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2007-12-20 20:01 -------
This is a dup of PR34448, Aldy's latest patch fixes it as well.

*** This bug has been marked as a duplicate of 34448 ***


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34467