[Bug tree-optimization/38752] New: [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[Bug tree-optimization/38752] New: [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu dot org]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1095 bytes --]

typedef struct
{
  int             baddr;
} mstruct_t;

static struct
{
  unsigned int    mapnum;
  mstruct_t       unused;
} mtab;

static mstruct_t *mactab = &mtab.unused;

int
main(void)
{
  int i;
  int addr;

  for (i=1; i <= mtab.mapnum; i++)
    {
      if (addr < mactab[i].baddr)
        {
          break;
        }
    }
  return 0;
}

./cc1 -quiet -O2 t.c
t.c: In function ‘main’:
t.c:16: internal compiler error: in set_uids_in_ptset, at
tree-ssa-structalias.c:4817
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-
                    structalias.c:4817
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-01-07 10:59 -------
Investigating.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
      Known to work|                            |4.2.4 4.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2009-01-07 10:59:56
               date|                            |
   Target Milestone|---                         |4.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-01-07 12:14 -------
We insist on finding an overlapping SFT even though it might possibly not
exist (as in this case where we do an access clearly outside of the object
boundary).  The fix is to just ignore that and let the operand machinery
add whatever memory tag it likes.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-01-07 13:12 -------
Subject: Bug 38752

Author: rguenth
Date: Wed Jan  7 13:12:17 2009
New Revision: 143155

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143155
Log:
2009-01-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38752
        * tree-ssa-structalias.c (set_uids_in_ptset): Do not assert we
        find a subvariable as we might have invalid accesses.

        * gcc.c-torture/compile/pr38752.c: New testcase.

Added:
    branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/compile/pr38752.c
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_3-branch/gcc/tree-ssa-structalias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-01-07 13:14 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30 09:00:28 UTC ---
Oops.  Fixed.

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30 08:56:04 UTC ---
Author: rguenth
Date: Thu Jun 30 08:56:02 2011
New Revision: 175687

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175687
Log:
2011-06-30  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/38752
    * gcc.c-torture/compile/pr38752.c: New testcase.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr38752.c
Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30 08:51:27 UTC ---
Author: rguenth
Date: Thu Jun 30 08:51:23 2011
New Revision: 175686

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175686
Log:
2011-06-30  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/38752
    * gcc.c-torture/compile/pr38752.c: New testcase.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.c-torture/compile/pr38752.c
Modified:
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30 08:49:37 UTC ---
Author: rguenth
Date: Thu Jun 30 08:49:30 2011
New Revision: 175685

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175685
Log:
2011-06-30  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/38752
    * gcc.c-torture/compile/pr38752.c: New testcase.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.c-torture/compile/pr38752.c
Modified:
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30 08:44:23 UTC ---
Author: rguenth
Date: Thu Jun 30 08:44:18 2011
New Revision: 175684

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175684
Log:
2011-06-30  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/38752
    * gcc.c-torture/compile/pr38752.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr38752.c
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug tree-optimization/38752] [4.3 Regression] ICE in set_uids_in_ptset, at tree-ssa-structalias.c:4817

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38752

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-06-29 23:13:01 UTC ---
This testcase was never added to the trunk.