[Bug c++/33372] New: segfault on incomplete code in openmp mode

[Bug c++/33372] New: segfault on incomplete code in openmp mode

[gcc at abeckmann dot de]

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Playing with the code reduction tools, i produced a segfault with the following
(incomplete) code:

=======================================
template < typename T >
void f ( )
{
unsigned n ( ) ;
#pragma omp parallel num_threads(n)
=======================================

$ /suse/NOBACKUP/gcc/gcc-4.2-branch/bin/g++ -v -march=i686 -O3 -fopenmp  -W
-Wall -c segfault2.ii
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4_2-branch/configure --enable-languages=c,c++
--prefix=/suse/NOBACKUP/gcc/gcc-4.2-branch
Thread model: posix
gcc version 4.2.2 20070910 (prerelease)
 /suse/NOBACKUP/gcc/gcc-4.2-branch/libexec/gcc/i686-pc-linux-gnu/4.2.2/cc1plus
-fpreprocessed segfault2.ii -quiet -dumpbase segfault2.ii -march=i686 -auxbase
segfault2 -O3 -W -Wall -version -fopenmp -o /tmp/ccUQF7PA.s
GNU C++ version 4.2.2 20070910 (prerelease) (i686-pc-linux-gnu)
        compiled by GNU C version 4.2.2 20070908 (prerelease).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 4c766e638e42be49e7fc1a3400590598
segfault2.ii: In function ‘void f()’:
segfault2.ii:5: internal compiler error: Segmentation fault

without -fopenmp, I get

segfault2.ii:5: warning: ignoring #pragma omp parallel
segfault2.ii:4: error: expected `}' at end of input


-- 
           Summary: segfault on incomplete code in openmp mode
           Product: gcc
           Version: 4.2.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gcc at abeckmann dot de
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33372

[Bug libgomp/33372] segfault on incomplete code in openmp mode

[bangerth at dealii dot org]

------- Comment #1 from bangerth at dealii dot org  2007-09-11 20:04 -------
Confirmed.


-- 

bangerth at dealii dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c++                         |libgomp
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-09-11 20:04:11
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33372

[Bug c++/33372] segfault on incomplete code in openmp mode

[jakub at gcc dot gnu dot org]

-- 

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|NEW                         |ASSIGNED
          Component|libgomp                     |c++
   Last reconfirmed|2007-09-11 20:04:11         |2007-10-22 02:45:50
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33372

[Bug c++/33372] segfault on incomplete code in openmp mode

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2007-10-22 19:11 -------
Subject: Bug 33372

Author: jakub
Date: Mon Oct 22 19:11:36 2007
New Revision: 129555

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129555
Log:
        PR c++/33372
        * semantics.c (finish_omp_clauses): Check !type_dependent_expression_p
        before checking if its type is integral.

        * g++.dg/gomp/pr33372-1.C: New test.
        * g++.dg/gomp/pr33372-2.C: New test.
        * g++.dg/gomp/pr33372-3.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/gomp/pr33372-1.C
    trunk/gcc/testsuite/g++.dg/gomp/pr33372-2.C
    trunk/gcc/testsuite/g++.dg/gomp/pr33372-3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33372

[Bug c++/33372] segfault on incomplete code in openmp mode

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-12-03 03:48 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
           Keywords|                            |ice-on-invalid-code
         Resolution|                            |FIXED
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33372