[Bug rtl-optimization/41928] New: segfault at gcc/bitmap.c:297

[Bug rtl-optimization/41928] New: segfault at gcc/bitmap.c:297

[jv244 at cam dot ac dot uk]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 4218 bytes --]

the attached code causes the compiler to segfault as:

Program received signal SIGSEGV, Segmentation fault.
bitmap_clear (head=0x78) at /data03/vondele/gcc_trunk/gcc/gcc/bitmap.c:297
297       if (head->first)
(gdb) bt
#0  bitmap_clear (head=0x78) at /data03/vondele/gcc_trunk/gcc/gcc/bitmap.c:297
#1  0x0000000000738265 in move_loop_invariants () at
/data03/vondele/gcc_trunk/gcc/gcc/loop-invariant.c:1568
#2  0x0000000000734e8d in rtl_move_loop_invariants () at
/data03/vondele/gcc_trunk/gcc/gcc/loop-init.c:254
#3  0x0000000000770fd4 in execute_one_pass (pass=0x11c1480) at
/data03/vondele/gcc_trunk/gcc/gcc/passes.c:1518
#4  0x00000000007711e5 in execute_pass_list (pass=0x11c1480) at
/data03/vondele/gcc_trunk/gcc/gcc/passes.c:1567
#5  0x00000000007711fd in execute_pass_list (pass=0x11c1360) at
/data03/vondele/gcc_trunk/gcc/gcc/passes.c:1568
#6  0x00000000007711fd in execute_pass_list (pass=0x1242580) at
/data03/vondele/gcc_trunk/gcc/gcc/passes.c:1568
#7  0x000000000086c0e1 in tree_rest_of_compilation (fndecl=0x7fdb5deb3d00) at
/data03/vondele/gcc_trunk/gcc/gcc/tree-optimize.c:392
#8  0x00000000009e806d in cgraph_expand_function (node=0x7fdb5ddc8300) at
/data03/vondele/gcc_trunk/gcc/gcc/cgraphunit.c:1160
#9  0x00000000009eaa24 in cgraph_optimize () at
/data03/vondele/gcc_trunk/gcc/gcc/cgraphunit.c:1219
#10 0x00000000009eb3ad in cgraph_finalize_compilation_unit () at
/data03/vondele/gcc_trunk/gcc/gcc/cgraphunit.c:1089
#11 0x000000000073325d in write_global_declarations () at
/data03/vondele/gcc_trunk/gcc/gcc/langhooks.c:309
#12 0x000000000081781e in toplev_main (argc=27, argv=0x7fff67e09dc8) at
/data03/vondele/gcc_trunk/gcc/gcc/toplev.c:1061

when compiled with:

gfortran  -c -O1 -march=native -g -ffree-form -fbounds-check

more details:

> gfortran  -c -O1 -march=native -g -ffree-form -fbounds-check -v bug.f90 
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/data03/vondele/gcc_trunk/build/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /data03/vondele/gcc_trunk/gcc/configure --disable-bootstrap
--prefix=/data03/vondele/gcc_trunk/build --enable-languages=c,c++,fortran
--disable-multilib --with-ppl=/data03/vondele/gcc_trunk/build/
--with-cloog=/data03/vondele/gcc_trunk/build/
--with-libelf=/data03/vondele/libelf-0.8.12/build/ --enable-gold --enable-lto
--enable-plugins
Thread model: posix
gcc version 4.5.0 20091103 (experimental) [trunk revision 153852] (GCC) 
COLLECT_GCC_OPTIONS='-c' '-O1'  '-g' '-ffree-form' '-fbounds-check' '-v'

/data03/vondele/gcc_trunk/build/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/f951
bug.f90 -march=k8-sse3 -mcx16 -msahf --param l1-cache-size=64 --param
l1-cache-line-size=64 --param l2-cache-size=1024 -mtune=k8 -quiet -dumpbase
bug.f90 -auxbase bug -g -O1 -version -ffree-form -fbounds-check
-fintrinsic-modules-path
/data03/vondele/gcc_trunk/build/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/finclude
-o /tmp/ccSGzPfe.s
GNU Fortran (GCC) version 4.5.0 20091103 (experimental) [trunk revision 153852]
(x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.3.1 20080507 (prerelease) [gcc-4_3-branch
revision 135036], GMP version 4.2.2, MPFR version 2.3.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU Fortran (GCC) version 4.5.0 20091103 (experimental) [trunk revision 153852]
(x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.3.1 20080507 (prerelease) [gcc-4_3-branch
revision 135036], GMP version 4.2.2, MPFR version 2.3.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
bug.f90: In function ‘moment’:
bug.f90:124:0: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: segfault at gcc/bitmap.c:297
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] segfault at gcc/bitmap.c:297

[jv244 at cam dot ac dot uk]

------- Comment #1 from jv244 at cam dot ac dot uk  2009-11-03 17:53 -------
might be a dup of PR41903 or PR41891. However, I might have a reasonably sized
testcase (delta still running).


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|segfault at gcc/bitmap.c:297|[4.5 Regression] segfault at
                   |                            |gcc/bitmap.c:297
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[jv244 at cam dot ac dot uk]

------- Comment #2 from jv244 at cam dot ac dot uk  2009-11-03 18:06 -------
Created an attachment (id=18958)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18958&action=view)
testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-11-07 22:36 -------
Confirmed with -O1 -fbounds-check.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-11-07 22:36:53
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-11-07 23:15 -------
I have a patch.


-- 

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|NEW                         |ASSIGNED
   Last reconfirmed|2009-11-07 22:36:53         |2009-11-07 23:15:35
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-11-07 23:27 -------
*** Bug 41891 has been marked as a duplicate of this bug. ***


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lucier at math dot purdue
                   |                            |dot edu
Bug 41928 depends on bug 41891, which changed state.

Bug 41891 Summary: [4.5 Regression] ICE in move_loop_invariants
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41891

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2009-11-07 23:27 -------
*** Bug 41903 has been marked as a duplicate of this bug. ***


-- 

rguenth 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=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2009-11-07 23:28 -------
*** Bug 41944 has been marked as a duplicate of this bug. ***


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fijall at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2009-11-08 12:10 -------
Subject: Bug 41928

Author: rguenth
Date: Sun Nov  8 12:10:32 2009
New Revision: 154008

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154008
Log:
2009-11-08  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/41928
        * loop-invariant.c (free_loop_data): If we didn't allocate
        loop data do not try to free it.

        * gfortran.dg/pr41928.f90: New testcase.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr41928.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/loop-invariant.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2009-11-08 12:10 -------
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=41928

[Bug rtl-optimization/41928] [4.5 Regression] segfault at gcc/bitmap.c:297

[hjl at gcc dot gnu dot org]

------- Comment #10 from hjl at gcc dot gnu dot org  2009-11-20 14:50 -------
Subject: Bug 41928

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=41928