[Bug middle-end/41935] New: ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[Bug middle-end/41935] New: ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[linuxl4 at sohu dot com]

$gcc -v
gcc version 4.4.3 20091104 (prerelease) (GCC) 

$gcc -c pid.c
kernel/pid.c: In function 'find_pid_ns':
kernel/pid.c:299: internal compiler error: tree check: expected integer_cst,
have nop_expr in int_cst_value, at tree.c:8301
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE : tree check: expected integer_cst, have nop_expr in
                    int_cst_value, at tree.c:8301
           Product: gcc
           Version: 4.4.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: linuxl4 at sohu dot com
 GCC build triplet: x86_64-pc-linux
  GCC host triplet: x86_64-pc-linux
GCC target triplet: x86_64-pc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug middle-end/41935] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[linuxl4 at sohu dot com]

------- Comment #1 from linuxl4 at sohu dot com  2009-11-04 07:29 -------
Created an attachment (id=18961)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18961&action=view)
the source


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug middle-end/41935] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2009-11-04 09:27 -------
Seems to be caused by the PR38699 changes.  Looking into it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug middle-end/41935] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2009-11-04 09:35 -------
Shorter testcase:
/* PR middle-end/41935 */

extern void abort (void);
struct A { int a; int b[10]; };

int
foo (struct A *p)
{
  return __builtin_offsetof (struct A, b[p->a]);
}

int
main ()
{
  struct A a;
  a.a = 7;
  if (foo (&a) != 7 * sizeof (int) + __builtin_offsetof (struct A, b))
    abort ();
  a.a = 2;
  if (foo (&a) != 2 * sizeof (int) + __builtin_offsetof (struct A, b))
    abort ();
  return 0;
}


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-11-04 09:35:32
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug middle-end/41935] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2009-11-04 10:37 -------
Created an attachment (id=18962)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18962&action=view)
gcc45-pr41935.patch

Patch I'm going to bootstrap/regtest.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug middle-end/41935] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2009-11-06 08:33 -------
*** Bug 41945 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jengelh at medozas dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug c/41935] [4.4/4.5 Regression] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[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
           Severity|normal                      |critical
          Component|middle-end                  |c
           Keywords|                            |ice-on-valid-code
            Summary|ICE : tree check: expected  |[4.4/4.5 Regression] ICE :
                   |integer_cst, have nop_expr  |tree check: expected
                   |in int_cst_value, at        |integer_cst, have nop_expr
                   |tree.c:8301                 |in int_cst_value, at
                   |                            |tree.c:8301
   Target Milestone|---                         |4.4.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug c/41935] [4.4/4.5 Regression] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2009-11-06 08:46 -------
Subject: Bug 41935

Author: jakub
Date: Fri Nov  6 08:46:45 2009
New Revision: 153962

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153962
Log:
        PR middle-end/41935
        * c-common.c (fold_offsetof_1) <case ARRAY_REF>: Don't crash for VLAs
        or non-constant index, allow index one past the last element and
        allow exceeding array bound in arrays that might be used as flexible
        array members.

        * gcc.dg/pr41935.c: New test.
        * c-c++-common/pr41935.c: New test.
        * c-c++-common/builtin-offsetof.c (f0): Allow index one past the last
        element.
        * gcc.c-torture/execute/pr41935.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/pr41935.c
    trunk/gcc/testsuite/gcc.c-torture/execute/pr41935.c
    trunk/gcc/testsuite/gcc.dg/pr41935.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-common.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/c-c++-common/builtin-offsetof.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug c/41935] [4.4/4.5 Regression] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2009-11-06 09:22 -------
Fixed.  On the 4.4 branch by
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153944
- partial reversion of the patch that introduced this problem.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug c/41935] [4.4/4.5 Regression] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2009-11-06 12:42 -------
*** Bug 41968 has been marked as a duplicate of this bug. ***


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug c/41935] [4.4/4.5 Regression] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2009-11-06 22:51 -------
*** Bug 41955 has been marked as a duplicate of this bug. ***


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |chris2553 at googlemail dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935

[Bug c/41935] [4.4/4.5 Regression] ICE : tree check: expected integer_cst, have nop_expr in int_cst_value, at tree.c:8301

[hjl at gcc dot gnu dot org]

------- Comment #10 from hjl at gcc dot gnu dot org  2009-11-20 14:50 -------
Subject: Bug 41935

Author: hjl
Date: Fri Nov 20 14:49:22 2009
New Revision: 154366

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154366
Log:
2009-11-20  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline:
        2009-11-18  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/41926
        * gcc.dg/vect/vect-debug-pr41926.c: New.

        2009-11-16  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/42055
        * g++.dg/template/crash92.C: New.

        2009-11-08  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/41928
        * gfortran.dg/pr41928.f90: New testcase.

        2009-11-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/41935
        * gcc.dg/pr41935.c: New test.
        * c-c++-common/pr41935.c: New test.
        * gcc.c-torture/execute/pr41935.c: New test.

        2009-11-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/41919
        * gcc.c-torture/execute/pr41919.c: New testcase.

        2009-11-03  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41907
        * gfortran.dg/missing_optional_dummy_6.f90: New test.

        2009-11-02  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/41750
        * gcc.c-torture/execute/pr41750.c: New test.

        2009-11-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/41841
        * gcc.dg/pr41841.c: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/c-c++-common/pr41935.c
      - copied unchanged from r154365,
trunk/gcc/testsuite/c-c++-common/pr41935.c
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/crash92.C
      - copied unchanged from r154365,
trunk/gcc/testsuite/g++.dg/template/crash92.C
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr41750.c
      - copied unchanged from r154365,
trunk/gcc/testsuite/gcc.c-torture/execute/pr41750.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr41919.c
      - copied unchanged from r154365,
trunk/gcc/testsuite/gcc.c-torture/execute/pr41919.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr41935.c
      - copied unchanged from r154365,
trunk/gcc/testsuite/gcc.c-torture/execute/pr41935.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr41841.c
      - copied unchanged from r154365, trunk/gcc/testsuite/gcc.dg/pr41841.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr41935.c
      - copied unchanged from r154365, trunk/gcc/testsuite/gcc.dg/pr41935.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/vect/vect-debug-pr41926.c
      - copied unchanged from r154365,
trunk/gcc/testsuite/gcc.dg/vect/vect-debug-pr41926.c
   
branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/missing_optional_dummy_6.f90
      - copied unchanged from r154365,
trunk/gcc/testsuite/gfortran.dg/missing_optional_dummy_6.f90
    branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/pr41928.f90
      - copied unchanged from r154365,
trunk/gcc/testsuite/gfortran.dg/pr41928.f90
Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41935