From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-184594-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 23229 invoked by alias); 2 May 2006 14:19:17 -0000
Received: (qmail 23205 invoked by uid 48); 2 May 2006 14:19:13 -0000
Date: Tue, 02 May 2006 14:19:00 -0000
Subject: [Bug middle-end/27388]  New: omp_is_private issues
X-Bugzilla-Reason: CC
Message-ID: <bug-27388-87@http.gcc.gnu.org/bugzilla/>
Reply-To: gcc-bugzilla@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org
From: "jakub at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2006-05/txt/msg00150.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

void
foo (void)
{
  int i;
  i = 0;
#pragma omp parallel shared (i)
    {
#pragma omp master
      i++;
#pragma omp parallel for
      for (i = 0; i < 10; i++)
        ;
    }
}

results in very weird omplower dump:
1) #pragma omp parallel shared(iD.1922) private(iD.1922)
   for the outer parallel
   (surely we don't want i being shared and private at the same time,
   just shared here)
2) #pragma omp parallel shared(iD.1922)
   for the inner parallel - in this case i certainly ought to be private,
   not shared
I think 1) is caused by n->value = GOVD_PRIVATE; messing up outer context,
while 2) probably because omp_is_private shouldn't recurse over is_parallel
contexts.


-- 
           Summary: omp_is_private issues
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: openmp
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27388