[Bug middle-end/48591] New: OpenMP ICE with atomics on __float128 in 32-bit only i686 cc1

[Bug middle-end/48591] New: OpenMP ICE with atomics on __float128 in 32-bit only i686 cc1

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48591

           Summary: OpenMP ICE with atomics on __float128 in 32-bit only
                    i686 cc1
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, openmp
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: jakub@gcc.gnu.org
        ReportedBy: jakub@gcc.gnu.org


extern void abort (void);

int
main ()
{
  __float128 f = 0.0;
  int i;
  #pragma omp parallel for reduction(+:f)
  for (i = 0; i < 128; i++)
    f++;
  if (f != 128.0Q)
    abort ();
  return 0;
}

ICEs with -fopenmp in 32-bit i686-linux cc1 (while works fine with x86_64-linux
cc1 with -fopenmp -m32).

[Bug middle-end/48591] OpenMP ICE with atomics on __float128 in 32-bit only i686 cc1

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48591

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-13 13:12:19 UTC ---
Created attachment 23973
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23973
gcc46-pr48591.patch

Untested fix.

[Bug middle-end/48591] OpenMP ICE with atomics on __float128 in 32-bit only i686 cc1

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48591

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-13 15:50:12 UTC ---
Author: jakub
Date: Wed Apr 13 15:50:02 2011
New Revision: 172379

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172379
Log:
    PR middle-end/48591
    * omp-low.c (expand_omp_atomic_fetch_op): Return false if decl is
    NULL.
    (expand_omp_atomic_pipeline): Return false if cmpxchg is NULL.

    * gcc.dg/gomp/pr48591.c: New test.

    * testsuite/libgomp.c/pr48591.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/gomp/pr48591.c
    trunk/libgomp/testsuite/libgomp.c/pr48591.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/omp-low.c
    trunk/gcc/testsuite/ChangeLog
    trunk/libgomp/ChangeLog

[Bug middle-end/48591] OpenMP ICE with atomics on __float128 in 32-bit only i686 cc1

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48591

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-13 15:52:22 UTC ---
Author: jakub
Date: Wed Apr 13 15:52:17 2011
New Revision: 172381

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172381
Log:
    PR middle-end/48591
    * omp-low.c (expand_omp_atomic_fetch_op): Return false if decl is
    NULL.
    (expand_omp_atomic_pipeline): Return false if cmpxchg is NULL.

    * gcc.dg/gomp/pr48591.c: New test.

    * testsuite/libgomp.c/pr48591.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.dg/gomp/pr48591.c
    branches/gcc-4_6-branch/libgomp/testsuite/libgomp.c/pr48591.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/omp-low.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_6-branch/libgomp/ChangeLog

[Bug middle-end/48591] OpenMP ICE with atomics on __float128 in 32-bit only i686 cc1

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48591

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

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

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-13 15:59:18 UTC ---
Fixed for 4.6+.