mirrors/gcc
0
0
Fork 0
mirror of https://gcc.gnu.org/git/gcc.git synced 2024-11-28 06:14:10 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity
de4f64c73d
gcc/libgomp/libgomp.h
Jakub Jelinek 20906c66f2 backport: re PR fortran/46752 (OpenMP - Seg fault for unallocated allocatable array in firstprivate clause) 
Merge from gomp-3_1-branch branch:

2011-08-02  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* c-parser.c (enum c_parser_prec): New enum, moved from within
	c_parser_binary_expression.
	(c_parser_binary_expression): Add PREC argument.  Stop parsing
	if operator has lower or equal precedence than PREC.
	(c_parser_conditional_expression, c_parser_omp_for_loop): Adjust
	callers.
	(c_parser_omp_atomic): Handle parsing OpenMP 3.1 atomics.
	Adjust c_finish_omp_atomic caller.
	(c_parser_omp_taskyield): New function.
	(c_parser_pragma): Handle PRAGMA_OMP_TASKYIELD.
	(c_parser_omp_clause_name): Handle final and mergeable clauses.
	(c_parser_omp_clause_final, c_parser_omp_clause_mergeable): New
	functions.
	(c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_FINAL
	and PRAGMA_OMP_CLAUSE_MERGEABLE.
	(OMP_TASK_CLAUSE_MASK): Allow final and mergeable clauses.
	(c_parser_omp_clause_reduction): Handle min and max.
	* c-typeck.c (c_finish_omp_clauses): Don't complain about
	const qualified predetermined vars in firstprivate clause.
	andle OMP_CLAUSE_FINAL and OMP_CLAUSE_MERGEABLE.
	Handle MIN_EXPR and MAX_EXPR.
	* tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE_FINAL
	and OMP_CLAUSE_MERGEABLE.
	(dump_generic_node): Handle OMP_ATOMIC_READ, OMP_ATOMIC_CAPTURE_OLD
	and OMP_ATOMIC_CAPTURE_NEW.
	* tree.c (omp_clause_num_ops): Add OMP_CLAUSE_FINAL and
	OMP_CLAUSE_MERGEABLE.
	(omp_clause_code_name): Likewise.
	(walk_tree_1): Handle OMP_CLAUSE_FINAL and OMP_CLAUSE_MERGEABLE.
	* tree.h (enum omp_clause_code): Add OMP_CLAUSE_FINAL
	and OMP_CLAUSE_MERGEABLE.
	(OMP_CLAUSE_FINAL_EXPR): Define.
	* omp-low.c (scan_sharing_clauses): Handle OMP_CLAUSE_FINAL and
	OMP_CLAUSE_MERGEABLE.
	(expand_task_call): Likewise.
	(expand_omp_atomic_load, expand_omp_atomic_store): New functions.
	(expand_omp_atomic_fetch_op): Handle cases where old or new
	value is needed afterwards.
	(expand_omp_atomic): Call expand_omp_atomic_load resp.
	expand_omp_atomic_store.
	* gimplify.c (gimplify_omp_atomic, gimplify_expr): Handle
	OMP_ATOMIC_READ, OMP_ATOMIC_CAPTURE_OLD and OMP_ATOMIC_CAPTURE_NEW.
	(gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses): Handle
	OMP_CLAUSE_FINAL and OMP_CLAUSE_MERGEABLE.
	* tree-nested.c (convert_nonlocal_omp_clauses,
	convert_local_omp_clauses): Likewise.
	* tree.def (OMP_ATOMIC_READ, OMP_ATOMIC_CAPTURE_OLD,
	OMP_ATOMIC_CAPTURE_NEW): New.
	* gimple.h (GF_OMP_ATOMIC_NEED_VALUE): New.
	(gimple_omp_atomic_need_value_p, gimple_omp_atomic_set_need_value):
	New inlines.
	* omp-builtins.def (BUILT_IN_GOMP_TASKYIELD): New builtin.
	* doc/generic.texi: Mention OMP_CLAUSE_COLLAPSE,
	OMP_CLAUSE_UNTIED, OMP_CLAUSE_FINAL and OMP_CLAUSE_MERGEABLE.
gcc/c-family/
	* c-common.h (c_finish_omp_atomic): Adjust prototype.
	(c_finish_omp_taskyield): New prototype.
	* c-omp.c (c_finish_omp_atomic): Add OPCODE, V, LHS1 and RHS1
	arguments. Handle OMP_ATOMIC_READ, OMP_ATOMIC_CAPTURE_OLD and
	OMP_ATOMIC_CAPTURE_NEW in addition to OMP_ATOMIC.  If LHS1
	or RHS1 have side-effects, evaluate those too in the right spot,
	if it is a decl and LHS is also a decl, error out if they
	aren't the same.
	(c_finish_omp_taskyield): New function.
	* c-cppbuiltin.c (c_cpp_builtins): Change _OPENMP to 201107.
	* c-pragma.c (omp_pragmas): Add taskyield.
	* c-pragma.h (enum pragma_kind): Add PRAGMA_OMP_TASKYIELD.
	(enum pragma_omp_clause): Add PRAGMA_OMP_CLAUSE_FINAL and
	PRAGMA_OMP_CLAUSE_MERGEABLE.
gcc/cp/
	* cp-tree.h (finish_omp_atomic): Adjust prototype.
	(cxx_omp_const_qual_no_mutable): New prototype.
	(finish_omp_taskyield): New prototype.
	* parser.c (cp_parser_omp_atomic): (cp_parser_omp_atomic): Handle
	parsing OpenMP 3.1 atomics.  Adjust finish_omp_atomic caller.
	(cp_parser_omp_clause_name): Handle final and mergeable clauses.
	(cp_parser_omp_clause_final, cp_parser_omp_clause_mergeable): New
	functions.
	(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_FINAL
	and PRAGMA_OMP_CLAUSE_MERGEABLE.
	(OMP_TASK_CLAUSE_MASK): Allow final and mergeable clauses.
	(cp_parser_omp_taskyield): New function.
	(cp_parser_pragma): Handle PRAGMA_OMP_TASKYIELD.
	(cp_parser_omp_clause_reduction): Handle min and max.
	* pt.c (tsubst_expr) <case OMP_ATOMIC>: Handle OpenMP 3.1 atomics.
	(tsubst_omp_clauses): Handle OMP_CLAUSE_FINAL and
	OMP_CLAUSE_MERGEABLE.
	* semantics.c (finish_omp_atomic): Add OPCODE, V, LHS1 and RHS1
	arguments.  Handle OpenMP 3.1 atomics.  Adjust c_finish_omp_atomic
	caller.
	(finish_omp_clauses): Don't complain about const qualified
	predetermined vars and static data members in firstprivate clause.
	Handle OMP_CLAUSE_FINAL and OMP_CLAUSE_MERGEABLE. Handle MIN_EXPR
	and MAX_EXPR.
	(finish_omp_taskyield): New function.
	* cp-gimplify.c (cxx_omp_const_qual_no_mutable): New function.
	(cxx_omp_predetermined_sharing): Use it.
gcc/fortran/
	PR fortran/46752
	* cpp.c (cpp_define_builtins): Change _OPENMP to 201107.
	* openmp.c (gfc_free_omp_clauses): Free also final_expr.
	(OMP_CLAUSE_FINAL, OMP_CLAUSE_MERGEABLE): Define.
	(gfc_match_omp_clauses): Handle parsing final and mergeable
	clauses.
	(OMP_TASK_CLAUSES): Allow final and mergeable clauses.
	(gfc_match_omp_taskyield): New function.
	(resolve_omp_clauses): Resolve final clause.  Allow POINTERs and
	Cray pointers in clauses other than REDUCTION.
	(gfc_match_omp_atomic): Match optional
	read/write/update/capture keywords after !$omp atomic.
	(resolve_omp_atomic): Handle all OpenMP 3.1 atomic forms.
	* dump-parse-tree.c (show_omp_node): Handle EXEC_OMP_TASKYIELD,
	print final and mergeable clauses.
	(show_code_node): Handle EXEC_OMP_TASKYIELD.
	* trans-openmp.c (gfc_trans_omp_clauses): Handle final and
	mergeable clauses.
	(gfc_trans_omp_taskyield): New function.
	(gfc_trans_omp_directive): Handle EXEC_OMP_TASKYIELD.
	(gfc_trans_omp_atomic): Handle all OpenMP 3.1 atomic forms.
	(gfc_omp_clause_copy_ctor): Handle non-allocated allocatable.
	(gfc_omp_predetermined_sharing): Adjust comment.
	* gfortran.h (gfc_statement): Add ST_OMP_TASKYIELD and
	ST_OMP_END_ATOMIC.
	(gfc_omp_clauses): Add final_expr and mergeable fields.
	(gfc_exec_op): Add EXEC_OMP_TASKYIELD.
	(gfc_omp_atomic_op): New enum typedef.
	(struct gfc_code): Add ext.omp_atomic.
	* trans.c (trans_code): Handle EXEC_OMP_TASKYIELD.
	* frontend-passes.c (gfc_code_walker): Also walk final_expr.
	* resolve.c (gfc_resolve_blocks, resolve_code): Handle
	EXEC_OMP_TASKYIELD.
	* st.c (gfc_free_statement): Likewise.
	* match.h (gfc_match_omp_taskyield): New prototype.
	* parse.c (decode_omp_directive): Handle taskyield directive.
	Handle !$omp end atomic.
	(case_executable): Add ST_OMP_TASKYIELD case.
	(gfc_ascii_statement): Handle ST_OMP_TASKYIELD.
	(parse_omp_atomic): Return gfc_statement instead of void.
	For !$omp atomic capture parse two assignments instead of
	just one and require !$omp end atomic afterwards, for
	other !$omp atomic forms just allow !$omp end atomic at the
	end.
	(parse_omp_structured_block, parse_executable): Adjust
	parse_omp_atomic callers.

2011-08-02  Tobias Burnus  <burnus@net-b.de>

	* intrinsic.c (OMP_LIB): Updated openmp_version's
	value to 201107.
	* gfortran.texi (OpenMP): Update ref to OpenMP 3.1.
	* intrinsic.texi (OpenMP Modules): Update ref to OpenMP 3.1;
	remove deleted omp_integer_kind and omp_logical_kind constants.
gcc/testsuite/
	PR fortran/46752
	* gcc.dg/gomp/atomic-5.c: Adjust expected diagnostics.
	* gcc.dg/gomp/atomic-15.c: New test.
	* g++.dg/gomp/atomic-5.C: Adjust expected diagnostics.
	* g++.dg/gomp/atomic-15.C: New test.
	* g++.dg/gomp/private-1.C: New test.
	* g++.dg/gomp/sharing-2.C: New test.
	* gfortran.dg/gomp/crayptr1.f90: Don't expect error
	about Cray pointer in FIRSTPRIVATE/LASTPRIVATE.
	* gfortran.dg/gomp/omp_atomic2.f90: New test.
libgomp/
	PR fortran/42041
	PR fortran/46752
	* omp.h.in (omp_in_final): New prototype.
	* omp_lib.f90.in (omp_in_final): New interface.
	(omp_integer_kind, omp_logical_kind): Remove
	and replace all its uses in the module with 4.
	(openmp_version): Change to 201107.
	* omp_lib.h.in (omp_sched_static, omp_sched_dynamic,
	omp_sched_guided, omp_sched_auto): Use omp_sched_kind
	kind for the parameters.
	(omp_in_final): New external.
	(openmp_version): Change to 201107.
	* task.c (omp_in_final): New function.
	(gomp_init_task): Initialize final_task.
	(GOMP_task): Remove unused attribute from flags.  Handle final
	tasks.
	(GOMP_taskyield): New function.
	(omp_in_final): Return true if if (false) or final (true) task
	or descendant of final (true).
	* fortran.c (omp_in_final_): New function.
	* libgomp.map (OMP_3.1): Export omp_in_final and omp_in_final_.
	(GOMP_3.0): Export GOMP_taskyield.
	* env.c (gomp_nthreads_var_list, gomp_nthreads_var_list_len): New
	variables.
	(parse_unsigned_long_list): New function.
	(initialize_env): Use it for OMP_NUM_THREADS.  Call parse_boolean
	with "OMP_PROC_BIND".  If OMP_PROC_BIND=true, call gomp_init_affinity
	even if parse_affinity returned false.
	* config/linux/affinity.c (gomp_init_affinity): Handle
	gomp_cpu_affinity_len == 0.
	* libgomp_g.h (GOMP_taskyield): New prototype.
	* libgomp.h (struct gomp_task): Add final_task field.
	(gomp_nthreads_var_list, gomp_nthreads_var_list_len): New externs.
	* team.c (gomp_team_start): Override new task's nthreads_var icv
	if list form OMP_NUM_THREADS has been used and it has value for
	the new nesting level.

	* testsuite/libgomp.c/atomic-11.c: New test.
	* testsuite/libgomp.c/atomic-12.c: New test.
	* testsuite/libgomp.c/atomic-13.c: New test.
	* testsuite/libgomp.c/atomic-14.c: New test.
	* testsuite/libgomp.c/reduction-6.c: New test.
	* testsuite/libgomp.c/task-5.c: New test.
	* testsuite/libgomp.c++/atomic-2.C: New test.
	* testsuite/libgomp.c++/atomic-3.C: New test.
	* testsuite/libgomp.c++/atomic-4.C: New test.
	* testsuite/libgomp.c++/atomic-5.C: New test.
	* testsuite/libgomp.c++/atomic-6.C: New test.
	* testsuite/libgomp.c++/atomic-7.C: New test.
	* testsuite/libgomp.c++/atomic-8.C: New test.
	* testsuite/libgomp.c++/atomic-9.C: New test.
	* testsuite/libgomp.c++/task-8.C: New test.
	* testsuite/libgomp.c++/reduction-4.C: New test.
	* testsuite/libgomp.fortran/allocatable7.f90: New test.
	* testsuite/libgomp.fortran/allocatable8.f90: New test.
	* testsuite/libgomp.fortran/crayptr3.f90: New test.
	* testsuite/libgomp.fortran/omp_atomic3.f90: New test.
	* testsuite/libgomp.fortran/omp_atomic4.f90: New test.
	* testsuite/libgomp.fortran/pointer1.f90: New test.
	* testsuite/libgomp.fortran/pointer2.f90: New test.
	* testsuite/libgomp.fortran/task4.f90: New test.

2011-08-02  Tobias Burnus  <burnus@net-b.de>

	* libgomp.texi: Update OpenMP spec references to 3.1.
	(omp_in_final,OMP_PROC_BIND): New sections.
	(OMP_NUM_THREADS): Document that the value can be now a list.
	(GOMP_STACKSIZE,GOMP_CPU_AFFINITY): Update @ref.

From-SVN: r177194
2011-08-02 18:13:29 +02:00

581 lines
18 KiB
C
Raw Blame History

/* Copyright (C) 2005, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU OpenMP Library (libgomp).
Libgomp is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* This file contains data types and function declarations that are not
part of the official OpenMP user interface. There are declarations
in here that are part of the GNU OpenMP ABI, in that the compiler is
required to know about them and use them.
The convention is that the all caps prefix "GOMP" is used group items
that are part of the external ABI, and the lower case prefix "gomp"
is used group items that are completely private to the library. */
#ifndef LIBGOMP_H
#define LIBGOMP_H 1
#include "config.h"
#include "gstdint.h"
#include <pthread.h>
#include <stdbool.h>
#ifdef HAVE_ATTRIBUTE_VISIBILITY
# pragma GCC visibility push(hidden)
#endif
#include "sem.h"
#include "mutex.h"
#include "bar.h"
#include "ptrlock.h"
/* This structure contains the data to control one work-sharing construct,
either a LOOP (FOR/DO) or a SECTIONS. */
enum gomp_schedule_type
{
GFS_RUNTIME,
GFS_STATIC,
GFS_DYNAMIC,
GFS_GUIDED,
GFS_AUTO
};
struct gomp_work_share
{
/* This member records the SCHEDULE clause to be used for this construct.
The user specification of "runtime" will already have been resolved.
If this is a SECTIONS construct, this value will always be DYNAMIC. */
enum gomp_schedule_type sched;
int mode;
union {
struct {
/* This is the chunk_size argument to the SCHEDULE clause. */
long chunk_size;
/* This is the iteration end point. If this is a SECTIONS construct,
this is the number of contained sections. */
long end;
/* This is the iteration step. If this is a SECTIONS construct, this
is always 1. */
long incr;
};
struct {
/* The same as above, but for the unsigned long long loop variants. */
unsigned long long chunk_size_ull;
unsigned long long end_ull;
unsigned long long incr_ull;
};
};
/* This is a circular queue that details which threads will be allowed
into the ordered region and in which order. When a thread allocates
iterations on which it is going to work, it also registers itself at
the end of the array. When a thread reaches the ordered region, it
checks to see if it is the one at the head of the queue. If not, it
blocks on its RELEASE semaphore. */
unsigned *ordered_team_ids;
/* This is the number of threads that have registered themselves in
the circular queue ordered_team_ids. */
unsigned ordered_num_used;
/* This is the team_id of the currently acknowledged owner of the ordered
section, or -1u if the ordered section has not been acknowledged by
any thread. This is distinguished from the thread that is *allowed*
to take the section next. */
unsigned ordered_owner;
/* This is the index into the circular queue ordered_team_ids of the
current thread that's allowed into the ordered reason. */
unsigned ordered_cur;
/* This is a chain of allocated gomp_work_share blocks, valid only
in the first gomp_work_share struct in the block. */
struct gomp_work_share *next_alloc;
/* The above fields are written once during workshare initialization,
or related to ordered worksharing. Make sure the following fields
are in a different cache line. */
/* This lock protects the update of the following members. */
gomp_mutex_t lock __attribute__((aligned (64)));
/* This is the count of the number of threads that have exited the work
share construct. If the construct was marked nowait, they have moved on
to other work; otherwise they're blocked on a barrier. The last member
of the team to exit the work share construct must deallocate it. */
unsigned threads_completed;
union {
/* This is the next iteration value to be allocated. In the case of
GFS_STATIC loops, this the iteration start point and never changes. */
long next;
/* The same, but with unsigned long long type. */
unsigned long long next_ull;
/* This is the returned data structure for SINGLE COPYPRIVATE. */
void *copyprivate;
};
union {
/* Link to gomp_work_share struct for next work sharing construct
encountered after this one. */
gomp_ptrlock_t next_ws;
/* gomp_work_share structs are chained in the free work share cache
through this. */
struct gomp_work_share *next_free;
};
/* If only few threads are in the team, ordered_team_ids can point
to this array which fills the padding at the end of this struct. */
unsigned inline_ordered_team_ids[0];
};
/* This structure contains all of the thread-local data associated with
a thread team. This is the data that must be saved when a thread
encounters a nested PARALLEL construct. */
struct gomp_team_state
{
/* This is the team of which the thread is currently a member. */
struct gomp_team *team;
/* This is the work share construct which this thread is currently
processing. Recall that with NOWAIT, not all threads may be
processing the same construct. */
struct gomp_work_share *work_share;
/* This is the previous work share construct or NULL if there wasn't any.
When all threads are done with the current work sharing construct,
the previous one can be freed. The current one can't, as its
next_ws field is used. */
struct gomp_work_share *last_work_share;
/* This is the ID of this thread within the team. This value is
guaranteed to be between 0 and N-1, where N is the number of
threads in the team. */
unsigned team_id;
/* Nesting level. */
unsigned level;
/* Active nesting level. Only active parallel regions are counted. */
unsigned active_level;
#ifdef HAVE_SYNC_BUILTINS
/* Number of single stmts encountered. */
unsigned long single_count;
#endif
/* For GFS_RUNTIME loops that resolved to GFS_STATIC, this is the
trip number through the loop. So first time a particular loop
is encountered this number is 0, the second time through the loop
is 1, etc. This is unused when the compiler knows in advance that
the loop is statically scheduled. */
unsigned long static_trip;
};
/* These are the OpenMP 3.0 Internal Control Variables described in
section 2.3.1. Those described as having one copy per task are
stored within the structure; those described as having one copy
for the whole program are (naturally) global variables. */
struct gomp_task_icv
{
unsigned long nthreads_var;
enum gomp_schedule_type run_sched_var;
int run_sched_modifier;
bool dyn_var;
bool nest_var;
};
extern struct gomp_task_icv gomp_global_icv;
extern unsigned long gomp_thread_limit_var;
extern unsigned long gomp_remaining_threads_count;
#ifndef HAVE_SYNC_BUILTINS
extern gomp_mutex_t gomp_remaining_threads_lock;
#endif
extern unsigned long gomp_max_active_levels_var;
extern unsigned long long gomp_spin_count_var, gomp_throttled_spin_count_var;
extern unsigned long gomp_available_cpus, gomp_managed_threads;
extern unsigned long *gomp_nthreads_var_list, gomp_nthreads_var_list_len;
enum gomp_task_kind
{
GOMP_TASK_IMPLICIT,
GOMP_TASK_IFFALSE,
GOMP_TASK_WAITING,
GOMP_TASK_TIED
};
/* This structure describes a "task" to be run by a thread. */
struct gomp_task
{
struct gomp_task *parent;
struct gomp_task *children;
struct gomp_task *next_child;
struct gomp_task *prev_child;
struct gomp_task *next_queue;
struct gomp_task *prev_queue;
struct gomp_task_icv icv;
void (*fn) (void *);
void *fn_data;
enum gomp_task_kind kind;
bool in_taskwait;
bool in_tied_task;
bool final_task;
gomp_sem_t taskwait_sem;
};
/* This structure describes a "team" of threads. These are the threads
that are spawned by a PARALLEL constructs, as well as the work sharing
constructs that the team encounters. */
struct gomp_team
{
/* This is the number of threads in the current team. */
unsigned nthreads;
/* This is number of gomp_work_share structs that have been allocated
as a block last time. */
unsigned work_share_chunk;
/* This is the saved team state that applied to a master thread before
the current thread was created. */
struct gomp_team_state prev_ts;
/* This semaphore should be used by the master thread instead of its
"native" semaphore in the thread structure. Required for nested
parallels, as the master is a member of two teams. */
gomp_sem_t master_release;
/* This points to an array with pointers to the release semaphore
of the threads in the team. */
gomp_sem_t **ordered_release;
/* List of gomp_work_share structs chained through next_free fields.
This is populated and taken off only by the first thread in the
team encountering a new work sharing construct, in a critical
section. */
struct gomp_work_share *work_share_list_alloc;
/* List of gomp_work_share structs freed by free_work_share. New
entries are atomically added to the start of the list, and
alloc_work_share can safely only move all but the first entry
to work_share_list alloc, as free_work_share can happen concurrently
with alloc_work_share. */
struct gomp_work_share *work_share_list_free;
#ifdef HAVE_SYNC_BUILTINS
/* Number of simple single regions encountered by threads in this
team. */
unsigned long single_count;
#else
/* Mutex protecting addition of workshares to work_share_list_free. */
gomp_mutex_t work_share_list_free_lock;
#endif
/* This barrier is used for most synchronization of the team. */
gomp_barrier_t barrier;
/* Initial work shares, to avoid allocating any gomp_work_share
structs in the common case. */
struct gomp_work_share work_shares[8];
gomp_mutex_t task_lock;
struct gomp_task *task_queue;
int task_count;
int task_running_count;
/* This array contains structures for implicit tasks. */
struct gomp_task implicit_task[];
};
/* This structure contains all data that is private to libgomp and is
allocated per thread. */
struct gomp_thread
{
/* This is the function that the thread should run upon launch. */
void (*fn) (void *data);
void *data;
/* This is the current team state for this thread. The ts.team member
is NULL only if the thread is idle. */
struct gomp_team_state ts;
/* This is the task that the thread is currently executing. */
struct gomp_task *task;
/* This semaphore is used for ordered loops. */
gomp_sem_t release;
/* user pthread thread pool */
struct gomp_thread_pool *thread_pool;
};
struct gomp_thread_pool
{
/* This array manages threads spawned from the top level, which will
return to the idle loop once the current PARALLEL construct ends. */
struct gomp_thread **threads;
unsigned threads_size;
unsigned threads_used;
struct gomp_team *last_team;
/* This barrier holds and releases threads waiting in threads. */
gomp_barrier_t threads_dock;
};
/* ... and here is that TLS data. */
#ifdef HAVE_TLS
extern __thread struct gomp_thread gomp_tls_data;
static inline struct gomp_thread *gomp_thread (void)
{
return &gomp_tls_data;
}
#else
extern pthread_key_t gomp_tls_key;
static inline struct gomp_thread *gomp_thread (void)
{
return pthread_getspecific (gomp_tls_key);
}
#endif
extern struct gomp_task_icv *gomp_new_icv (void);
/* Here's how to access the current copy of the ICVs. */
static inline struct gomp_task_icv *gomp_icv (bool write)
{
struct gomp_task *task = gomp_thread ()->task;
if (task)
return &task->icv;
else if (write)
return gomp_new_icv ();
else
return &gomp_global_icv;
}
/* The attributes to be used during thread creation. */
extern pthread_attr_t gomp_thread_attr;
/* Other variables. */
extern unsigned short *gomp_cpu_affinity;
extern size_t gomp_cpu_affinity_len;
/* Function prototypes. */
/* affinity.c */
extern void gomp_init_affinity (void);
extern void gomp_init_thread_affinity (pthread_attr_t *);
/* alloc.c */
extern void *gomp_malloc (size_t) __attribute__((malloc));
extern void *gomp_malloc_cleared (size_t) __attribute__((malloc));
extern void *gomp_realloc (void *, size_t);
/* Avoid conflicting prototypes of alloca() in system headers by using
GCC's builtin alloca(). */
#define gomp_alloca(x) __builtin_alloca(x)
/* error.c */
extern void gomp_error (const char *, ...)
__attribute__((format (printf, 1, 2)));
extern void gomp_fatal (const char *, ...)
__attribute__((noreturn, format (printf, 1, 2)));
/* iter.c */
extern int gomp_iter_static_next (long *, long *);
extern bool gomp_iter_dynamic_next_locked (long *, long *);
extern bool gomp_iter_guided_next_locked (long *, long *);
#ifdef HAVE_SYNC_BUILTINS
extern bool gomp_iter_dynamic_next (long *, long *);
extern bool gomp_iter_guided_next (long *, long *);
#endif
/* iter_ull.c */
extern int gomp_iter_ull_static_next (unsigned long long *,
unsigned long long *);
extern bool gomp_iter_ull_dynamic_next_locked (unsigned long long *,
unsigned long long *);
extern bool gomp_iter_ull_guided_next_locked (unsigned long long *,
unsigned long long *);
#if defined HAVE_SYNC_BUILTINS && defined __LP64__
extern bool gomp_iter_ull_dynamic_next (unsigned long long *,
unsigned long long *);
extern bool gomp_iter_ull_guided_next (unsigned long long *,
unsigned long long *);
#endif
/* ordered.c */
extern void gomp_ordered_first (void);
extern void gomp_ordered_last (void);
extern void gomp_ordered_next (void);
extern void gomp_ordered_static_init (void);
extern void gomp_ordered_static_next (void);
extern void gomp_ordered_sync (void);
/* parallel.c */
extern unsigned gomp_resolve_num_threads (unsigned, unsigned);
/* proc.c (in config/) */
extern void gomp_init_num_threads (void);
extern unsigned gomp_dynamic_max_threads (void);
/* task.c */
extern void gomp_init_task (struct gomp_task *, struct gomp_task *,
struct gomp_task_icv *);
extern void gomp_end_task (void);
extern void gomp_barrier_handle_tasks (gomp_barrier_state_t);
static void inline
gomp_finish_task (struct gomp_task *task)
{
gomp_sem_destroy (&task->taskwait_sem);
}
/* team.c */
extern struct gomp_team *gomp_new_team (unsigned);
extern void gomp_team_start (void (*) (void *), void *, unsigned,
struct gomp_team *);
extern void gomp_team_end (void);
/* work.c */
extern void gomp_init_work_share (struct gomp_work_share *, bool, unsigned);
extern void gomp_fini_work_share (struct gomp_work_share *);
extern bool gomp_work_share_start (bool);
extern void gomp_work_share_end (void);
extern void gomp_work_share_end_nowait (void);
static inline void
gomp_work_share_init_done (void)
{
struct gomp_thread *thr = gomp_thread ();
if (__builtin_expect (thr->ts.last_work_share != NULL, 1))
gomp_ptrlock_set (&thr->ts.last_work_share->next_ws, thr->ts.work_share);
}
#ifdef HAVE_ATTRIBUTE_VISIBILITY
# pragma GCC visibility pop
#endif
/* Now that we're back to default visibility, include the globals. */
#include "libgomp_g.h"
/* Include omp.h by parts. */
#include "omp-lock.h"
#define _LIBGOMP_OMP_LOCK_DEFINED 1
#include "omp.h.in"
#if !defined (HAVE_ATTRIBUTE_VISIBILITY) \
|| !defined (HAVE_ATTRIBUTE_ALIAS) \
|| !defined (HAVE_AS_SYMVER_DIRECTIVE) \
|| !defined (PIC) \
|| !defined (HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
# undef LIBGOMP_GNU_SYMBOL_VERSIONING
#endif
#ifdef LIBGOMP_GNU_SYMBOL_VERSIONING
extern void gomp_init_lock_30 (omp_lock_t *) __GOMP_NOTHROW;
extern void gomp_destroy_lock_30 (omp_lock_t *) __GOMP_NOTHROW;
extern void gomp_set_lock_30 (omp_lock_t *) __GOMP_NOTHROW;
extern void gomp_unset_lock_30 (omp_lock_t *) __GOMP_NOTHROW;
extern int gomp_test_lock_30 (omp_lock_t *) __GOMP_NOTHROW;
extern void gomp_init_nest_lock_30 (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void gomp_destroy_nest_lock_30 (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void gomp_set_nest_lock_30 (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void gomp_unset_nest_lock_30 (omp_nest_lock_t *) __GOMP_NOTHROW;
extern int gomp_test_nest_lock_30 (omp_nest_lock_t *) __GOMP_NOTHROW;
extern void gomp_init_lock_25 (omp_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_destroy_lock_25 (omp_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_set_lock_25 (omp_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_unset_lock_25 (omp_lock_25_t *) __GOMP_NOTHROW;
extern int gomp_test_lock_25 (omp_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_init_nest_lock_25 (omp_nest_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_destroy_nest_lock_25 (omp_nest_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_set_nest_lock_25 (omp_nest_lock_25_t *) __GOMP_NOTHROW;
extern void gomp_unset_nest_lock_25 (omp_nest_lock_25_t *) __GOMP_NOTHROW;
extern int gomp_test_nest_lock_25 (omp_nest_lock_25_t *) __GOMP_NOTHROW;
# define strong_alias(fn, al) \
extern __typeof (fn) al __attribute__ ((alias (#fn)));
# define omp_lock_symver(fn) \
__asm (".symver g" #fn "_30, " #fn "@@OMP_3.0"); \
__asm (".symver g" #fn "_25, " #fn "@OMP_1.0");
#else
# define gomp_init_lock_30 omp_init_lock
# define gomp_destroy_lock_30 omp_destroy_lock
# define gomp_set_lock_30 omp_set_lock
# define gomp_unset_lock_30 omp_unset_lock
# define gomp_test_lock_30 omp_test_lock
# define gomp_init_nest_lock_30 omp_init_nest_lock
# define gomp_destroy_nest_lock_30 omp_destroy_nest_lock
# define gomp_set_nest_lock_30 omp_set_nest_lock
# define gomp_unset_nest_lock_30 omp_unset_nest_lock
# define gomp_test_nest_lock_30 omp_test_nest_lock
#endif
#ifdef HAVE_ATTRIBUTE_VISIBILITY
# define attribute_hidden __attribute__ ((visibility ("hidden")))
#else
# define attribute_hidden
#endif
#ifdef HAVE_ATTRIBUTE_ALIAS
# define ialias(fn) \
extern __typeof (fn) gomp_ialias_##fn \
__attribute__ ((alias (#fn))) attribute_hidden;
#else
# define ialias(fn)
#endif
#endif /* LIBGOMP_H */
Reference in New Issue View Git Blame Copy Permalink