r203032 - /branches/gomp-4_0-branch/libgomp/has...

[jakub@gcc.gnu.org]

Author: jakub
Date: Mon Sep 30 13:10:15 2013
New Revision: 203032

URL: http://gcc.gnu.org/viewcvs?rev=203032&root=gcc&view=rev
Log:
	* libgomp.h: Include stdlib.h.
	(struct gomp_task_depend_entry,
	struct gomp_dependers_vec): New types.
	(struct gomp_task): Add dependers, depend_hash, depend_count,
	num_dependees and depend fields.
	(struct gomp_taskgroup): Add num_children field.
	(gomp_finish_task): Free depend_hash if non-NULL.
	* libgomp_g.h (GOMP_task): Add depend argument.
	* hashtab.h: New file.
	* task.c: Include hashtab.h.
	(hash_entry_type): New typedef.
	(htab_alloc, htab_free, htab_hash, htab_eq): New inlines.
	(gomp_init_task): Clear dependers, depend_hash and depend_count
	fields.
	(GOMP_task): Add depend argument, handle depend clauses.  Increment
	num_children field in taskgroup.
	(gomp_task_run_pre): Don't increment task_running_count here,
	nor clear task_pending bit.
	(gomp_task_run_post_handle_depend_hash,
	gomp_task_run_post_handle_dependers,
	gomp_task_run_post_handle_depend): New functions.
	(gomp_task_run_post_remove_parent): Clear in_taskwait before
	signalling corresponding semaphore.
	(gomp_task_run_post_remove_taskgroup): Decrement num_children
	field and make the decrement to 0 MEMMODEL_RELEASE operation,
	rather than storing NULL to taskgroup->children.  Clear
	in_taskgroup_wait before signalling corresponding semaphore.
	(gomp_barrier_handle_tasks): Move task_running_count increment
	and task_pending bit clearing here.  Call
	gomp_task_run_post_handle_depend.  If more than one new tasks
	have been queued, wake other threads if needed.
	(GOMP_taskwait): Call gomp_task_run_post_handle_depend.  If more
	than one new tasks have been queued, wake other threads if needed.
	After waiting on taskwait_sem, enter critical section again.
	(GOMP_taskgroup_start): Initialize num_children field.
	(GOMP_taskgroup_end): Check num_children instead of children
	before critical section.  If children is NULL, but num_children
	is non-zero, wait on taskgroup_sem.  Call
	gomp_task_run_post_handle_depend.  If more than one new tasks have
	been queued, wake other threads if needed.  After waiting on
	taskgroup_sem, enter critical section again.
	* testsuite/libgomp.c/depend-1.c: New test.
	* testsuite/libgomp.c/depend-2.c: New test.
	* testsuite/libgomp.c/depend-3.c: New test.
	* testsuite/libgomp.c/depend-4.c: New test.

Added:
    branches/gomp-4_0-branch/libgomp/hashtab.h