diff options
Diffstat (limited to 'libgomp/sections.c')
| -rw-r--r-- | libgomp/sections.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/libgomp/sections.c b/libgomp/sections.c index 7acd441de53..c7f49b7c32a 100644 --- a/libgomp/sections.c +++ b/libgomp/sections.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2005, 2007, 2008, 2009 Free Software Foundation, Inc. +/* Copyright (C) 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Richard Henderson <rth@redhat.com>. This file is part of the GNU OpenMP Library (libgomp). @@ -34,9 +34,25 @@ gomp_sections_init (struct gomp_work_share *ws, unsigned count) { ws->sched = GFS_DYNAMIC; ws->chunk_size = 1; - ws->end = count + 1; + ws->end = count + 1L; ws->incr = 1; ws->next = 1; +#ifdef HAVE_SYNC_BUILTINS + /* Prepare things to make each iteration faster. */ + if (sizeof (long) > sizeof (unsigned)) + ws->mode = 1; + else + { + struct gomp_thread *thr = gomp_thread (); + struct gomp_team *team = thr->ts.team; + long nthreads = team ? team->nthreads : 1; + + ws->mode = ((nthreads | ws->end) + < 1UL << (sizeof (long) * __CHAR_BIT__ / 2 - 1)); + } +#else + ws->mode = 0; +#endif } /* This routine is called when first encountering a sections construct |