From 8087e8d0bf16e5d277f97bdcf57dcdfcacf018b7 Mon Sep 17 00:00:00 2001 From: sh Date: Thu, 3 Sep 2015 11:24:34 +0000 Subject: [PATCH] [gomp] Simplify thread pool initialization libgomp/ChangeLog * team.c (gomp_new_thread_pool): Delete and move content to ... (gomp_get_thread_pool): ... new function. Allocate and initialize thread pool on demand. (get_last_team): Use gomp_get_thread_pool(). (gomp_team_start): Delete thread pool initialization. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227439 138bc75d-0d04-0410-961f-82ee72b054a4 --- libgomp/ChangeLog | 8 ++++++++ libgomp/team.c | 56 +++++++++++++++++++++++++++---------------------------- 2 files changed, 35 insertions(+), 29 deletions(-) diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog index d5aaa486204..319795c41ba 100644 --- a/libgomp/ChangeLog +++ b/libgomp/ChangeLog @@ -1,3 +1,11 @@ +2015-09-03 Sebastian Huber + + * team.c (gomp_new_thread_pool): Delete and move content to ... + (gomp_get_thread_pool): ... new function. Allocate and + initialize thread pool on demand. + (get_last_team): Use gomp_get_thread_pool(). + (gomp_team_start): Delete thread pool initialization. + 2015-09-03 Tom de Vries PR tree-optimization/65637 diff --git a/libgomp/team.c b/libgomp/team.c index 7671b05c5bd..e1c4d60270e 100644 --- a/libgomp/team.c +++ b/libgomp/team.c @@ -134,22 +134,39 @@ gomp_thread_start (void *xdata) return NULL; } +/* Get the thread pool, allocate and initialize it on demand. */ + +static inline struct gomp_thread_pool * +gomp_get_thread_pool (struct gomp_thread *thr, unsigned nthreads) +{ + struct gomp_thread_pool *pool = thr->thread_pool; + if (__builtin_expect (pool == NULL, 0)) + { + pool = gomp_malloc (sizeof (*pool)); + pool->threads = NULL; + pool->threads_size = 0; + pool->threads_used = 0; + pool->last_team = NULL; + pool->threads_busy = nthreads; + thr->thread_pool = pool; + pthread_setspecific (gomp_thread_destructor, thr); + } + return pool; +} + static inline struct gomp_team * get_last_team (unsigned nthreads) { struct gomp_thread *thr = gomp_thread (); if (thr->ts.team == NULL) { - struct gomp_thread_pool *pool = thr->thread_pool; - if (pool != NULL) - { - struct gomp_team *last_team = pool->last_team; - if (last_team != NULL && last_team->nthreads == nthreads) - { - pool->last_team = NULL; - return last_team; - } - } + struct gomp_thread_pool *pool = gomp_get_thread_pool (thr, nthreads); + struct gomp_team *last_team = pool->last_team; + if (last_team != NULL && last_team->nthreads == nthreads) + { + pool->last_team = NULL; + return last_team; + } } return NULL; } @@ -219,19 +236,6 @@ free_team (struct gomp_team *team) free (team); } -/* Allocate and initialize a thread pool. */ - -static struct gomp_thread_pool *gomp_new_thread_pool (void) -{ - struct gomp_thread_pool *pool - = gomp_malloc (sizeof(struct gomp_thread_pool)); - pool->threads = NULL; - pool->threads_size = 0; - pool->threads_used = 0; - pool->last_team = NULL; - return pool; -} - static void gomp_free_pool_helper (void *thread_pool) { @@ -316,12 +320,6 @@ gomp_team_start (void (*fn) (void *), void *data, unsigned nthreads, thr = gomp_thread (); nested = thr->ts.team != NULL; - if (__builtin_expect (thr->thread_pool == NULL, 0)) - { - thr->thread_pool = gomp_new_thread_pool (); - thr->thread_pool->threads_busy = nthreads; - pthread_setspecific (gomp_thread_destructor, thr); - } pool = thr->thread_pool; task = thr->task; icv = task ? &task->icv : &gomp_global_icv; -- 2.11.4.GIT