bfee0724e0
* config/linux/wait.h (do_spin): New inline, largely copied from do_wait, just don't do futex_wait here, instead return true if it should be done. (do_wait): Implement using do_spin. * config/linux/mutex.h (gomp_mutex_lock_slow): Add an int argument to prototype. (gomp_mutex_lock): Use __sync_val_compare_and_swap instead of __sync_bool_compare_and_swap, pass the oldval to gomp_mutex_lock_slow. * config/linux/mutex.c (gomp_mutex_lock_slow): Add oldval argument. If all mutex contenders are just spinning and not sleeping, don't change state to 2 unnecessarily. Optimize the loop when state has already become 2 to use just one atomic operation per loop instead of two. * config/linux/ia64/mutex.h (gomp_mutex_lock_slow): Add an int argument to prototype. (gomp_mutex_lock): Use __sync_val_compare_and_swap instead of __sync_bool_compare_and_swap, pass the oldval to gomp_mutex_lock_slow. From-SVN: r176326 |
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| .. | ||
| config | ||
| testsuite | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| alloc.c | ||
| barrier.c | ||
| ChangeLog | ||
| ChangeLog.graphite | ||
| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.tgt | ||
| critical.c | ||
| env.c | ||
| error.c | ||
| fortran.c | ||
| iter.c | ||
| iter_ull.c | ||
| libgomp.h | ||
| libgomp.map | ||
| libgomp.spec.in | ||
| libgomp.texi | ||
| libgomp_f.h.in | ||
| libgomp_g.h | ||
| loop.c | ||
| loop_ull.c | ||
| Makefile.am | ||
| Makefile.in | ||
| omp.h.in | ||
| omp_lib.f90.in | ||
| omp_lib.h.in | ||
| ordered.c | ||
| parallel.c | ||
| sections.c | ||
| single.c | ||
| task.c | ||
| team.c | ||
| work.c | ||