[Bug c/53409] New: ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[Bug c/53409] New: ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[regehr at cs dot utah.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

             Bug #: 53409
           Summary: ICE: vector VEC(vec_void_p,base) index domain error,
                    in vinfo_for_stmt at tree-vectorizer.h:630
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: regehr@cs.utah.edu
                CC: chenyang@cs.utah.edu


[regehr@dyson r50]$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r187663-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r187663-install
--program-prefix=r187663- --enable-languages=c,c++
Thread model: posix
gcc version 4.8.0 20120518 (experimental) (GCC) 
[regehr@dyson r50]$ current-gcc -Wall -O3 small.c
small.c: In function 'main':
small.c:4:1: internal compiler error: vector VEC(vec_void_p,base) index domain
error, in vinfo_for_stmt at tree-vectorizer.h:630
 main ()
 ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[regehr@dyson r50]$ cat small.c
int a, c, d, e, f;
int b[0];
int
main ()
{
    if (f)
        e = 0;
    int g = d;
    c = 0;
    for (; c <= 1; c++)
    {
        a = 0;
        for (; a <= 1; a = (char) a + 1)
            b[c] = g;
        a = 0;
    }
    return 0;
}

[Bug middle-end/53409] [4.7/4.8 Regression] ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-05-19
          Component|c                           |middle-end
                 CC|                            |rguenth at gcc dot gnu.org
     Ever Confirmed|0                           |1
            Summary|ICE: vector                 |[4.7/4.8 Regression] ICE:
                   |VEC(vec_void_p,base) index  |vector VEC(vec_void_p,base)
                   |domain error, in            |index domain error, in
                   |vinfo_for_stmt at           |vinfo_for_stmt at
                   |tree-vectorizer.h:630       |tree-vectorizer.h:630
   Target Milestone|---                         |4.7.1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-05-19 20:30:50 UTC ---
It is caused by revision 171734:

http://gcc.gnu.org/ml/gcc-cvs/2011-03/msg01160.html:

[Bug middle-end/53409] [4.7/4.8 Regression] ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

Richard Guenther <rguenth at gcc dot gnu.org> changed:

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

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-21 08:53:23 UTC ---
Mine.

[Bug middle-end/53409] [4.7/4.8 Regression] ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-21 09:37:38 UTC ---
Created attachment 27455
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27455
gcc48-pr53409.patch

Untested fix.

[Bug middle-end/53409] [4.7/4.8 Regression] ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-21 14:27:21 UTC ---
Author: jakub
Date: Mon May 21 14:27:10 2012
New Revision: 187716

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187716
Log:
    PR tree-optimization/53409
    * tree-vect-loop.c (vect_analyze_loop_operations): Don't check
    vinfo_for_stmt (op_def_stmt) if op_def_stmt isn't inside loop.

    * gcc.c-torture/compile/pr53409.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr53409.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c

[Bug middle-end/53409] [4.7/4.8 Regression] ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-21 21:02:50 UTC ---
Author: jakub
Date: Mon May 21 21:02:40 2012
New Revision: 187739

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187739
Log:
    PR tree-optimization/53409
    * tree-vect-loop.c (vect_analyze_loop_operations): Don't check
    vinfo_for_stmt (op_def_stmt) if op_def_stmt isn't inside loop.

    * gcc.c-torture/compile/pr53409.c: New test.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/gcc.c-torture/compile/pr53409.c
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_7-branch/gcc/tree-vect-loop.c

[Bug middle-end/53409] [4.7/4.8 Regression] ICE: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:630

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53409

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |jakub at gcc dot gnu.org
         Resolution|                            |FIXED

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-05-22 07:38:01 UTC ---
Fixed.