6041f70ae3
libitm: Fix HTM fastpath.
...
* beginend.cc (GTM::gtm_thread::serial_lock): Put on cacheline
boundary.
(htm_fastpath): Remove.
(gtm_thread::begin_transaction): Fix HTM fastpath.
(_ITM_commitTransaction): Adapt.
(_ITM_commitTransactionEH): Adapt.
* libitm/config/linux/rwlock.h (gtm_rwlock): Add htm_fastpath member
and accessors.
* libitm/config/posix/rwlock.h (gtm_rwlock): Likewise.
* libitm/config/posix/rwlock.cc (gtm_rwlock::gtm_rwlock): Adapt.
* libitm/config/x86/sjlj.S (_ITM_beginTransaction): Fix HTM fastpath.
* libitm/libitm_i.h (htm_fastpath): Remove declaration.
* libitm/method-serial.cc (htm_mg): Adapt.
(gtm_thread::serialirr_mode): Adapt.
* libitm/query.cc (_ITM_inTransaction, _ITM_getTransactionId): Adapt.
From-SVN: r232735
2016-01-22 16:13:06 +00:00
f57fc96068
libitm: Remove dead code.
...
* local_type_traits: Remove file.
* libitm_i.h: Don't include it anymore.
(sized_integral): Remove.
From-SVN: r232581
2016-01-19 19:49:14 +00:00
0d1ed41261
libitm: Remove dead code and data.
...
From-SVN: r232275
2016-01-12 14:57:45 +00:00
818ab71a41
Update copyright years.
...
From-SVN: r232055
2016-01-04 15:30:50 +01:00
4f8a3b87f9
libitm: Fix recent changes to allocations log.
...
libitm/
* libitm_i.h (gtm_alloc_action): Remove union.
* testsuite/libitm.c/alloc-1.c: New.
From-SVN: r230727
2015-11-22 20:56:20 +00:00
258c1d0722
Support __cxa_free_exception and fix exception handling.
...
gcc/cp/
* except.c (do_free_exception): Use transactional wrapper.
libitm/
* testsuite/libitm.c++/eh-5.C: New.
* libitm.h (_ITM_cxa_free_exception): New.
* libitm.map (_ITM_cxa_free_exception): Add it.
* libitm.texi: Update ABI docs.
* libitm_i.h (gtm_transaction_cp::cxa_unthrown): Remove.
(gtm_transaction_cp::cxa_uncaught_count): Add.
(gtm_thread::cxa_unthrown): Remove.
(gtm_thread::cxa_uncaught_count_ptr): Add.
(gtm_thread::cxa_uncaught_count): Add.
(gtm_thread::drop_references_allocations): Rename to...
(gtm_thread::discard_allocation): ... this and adapt.
(gtm_thread::init_cpp_exceptions): New.
* beginend.cc (gtm_thread::gtm_thread): Adapt EH handling.
(gtm_thread::begin_transaction): Likewise.
(gtm_transaction_cp::save): Likewise.
(gtm_thread::trycommit): Likewise.
* eh_cpp.cc: Add overview comments.
(__cxa_eh_globals, __cxa_get_globals, __cxa_free_exception): Declare.
(free_any_exception, _ITM_cxa_free_exception): New.
(gtm_thread::init_cpp_exceptions): Define.
(_ITM_cxa_allocate_exception, _ITM_cxa_throw): Adapt.
(_ITM_cxa_begin_catch, _ITM_cxa_end_catch): Likewise.
(gtm_thread::revert_cpp_exceptions): Likewise.
From-SVN: r230634
2015-11-20 00:10:08 +00:00
c518678b14
Support sized delete.
...
This adds transactional clones of the sized version of operator delete.
From-SVN: r230036
2015-11-09 17:30:24 +00:00
5624e564d2
Update copyright years.
...
From-SVN: r219188
2015-01-05 13:33:28 +01:00
f93608e6d4
Update copyright years in libitm/
...
From-SVN: r206298
2014-01-02 22:26:00 +00:00
bec9ec3fc1
Add custom HTM fast path for RTM on x86_64.
...
* libitm_i.h (gtm_thread): Assign an asm name to serial_lock.
(htm_fastpath): Assign an asm name.
* libitm.h (_ITM_codeProperties): Add non-ABI flags used by custom
HTM fast paths.
(_ITM_actions): Likewise.
* config/x86/target.h (HTM_CUSTOM_FASTPATH): Enable custom fastpath on
x86_64.
* config/x86/sjlj.S (_ITM_beginTransaction): Add custom HTM fast path.
* config/posix/rwlock.h (gtm_rwlock): Update comments. Move summary
field to the start of the structure.
* config/linux/rwlock.h (gtm_rwlock): Update comments.
* beginend.cc (gtm_thread::begin_transaction): Add retry policy
handling for custom HTM fast paths.
From-SVN: r202101
2013-08-30 10:33:41 +00:00
75f9527c9b
Update copyright in libitm.
...
From-SVN: r195697
2013-02-03 17:46:11 +00:00
64fbcc74a3
Add HTM fastpath and use Intel RTM for it on x86.
...
* beginend.cc (htm_fastpath): New.
(gtm_thread::begin_transaction, _ITM_commitTransaction,
_ITM_commitTransactionEH): Add HTM fastpath handling.
* config/linux/rwlock.h (gtm_rwlock.is_write_locked): New.
* config/posix/rwlock.h (gtm_rwlock.is_write_locked): New.
* config/x86/target.h (htm_available, htm_init, htm_begin_success,
htm_begin, htm_commit, htm_abort, htm_abort_should_retry): New.
* configure.tgt: Add -mrtm to XCFLAGS.
* method-serial.cc (htm_mg, o_htm_mg, htm_dispatch, dispatch_htm): New.
(gtm_thread::serialirr_mode): Add HTM fastpath handling.
* libitm_i.h (htm_fastpath, dispatch_htm): Declare.
* retry.cc (parse_default_method): Add HTM method parsing.
(gtm_thread::number_of_threads_changed): Use HTM by default if
available.
From-SVN: r193369
2012-11-09 17:04:40 +00:00
31772c9507
libitm: Add multi-lock, write-through TM method.
...
libitm/
* libitm_i.h (GTM::gtm_rwlog_entry): New.
(GTM::gtm_thread): Add read and write logs.
(GTM::dispatch_ml_wt): Declare.
* retry.cc (parse_default_method): Support ml_wt.
* method-ml.cc: New file.
* Makefile.am: Add method-ml.cc.
* Makefile.in: Regenerate.
From-SVN: r184212
2012-02-14 13:14:27 +00:00
07b6642b93
libitm: Filter out undo writes that overlap with the libitm stack.
...
PR libitm/51855
* config/generic/tls.h (GTM::mask_stack_top): New.
(GTM::mask_stack_bottom): Declare.
* config/generic/tls.c (GTM::mask_stack_bottom): New.
* local.cc (gtm_undolog::rollback): Filter out any updates that
overlap the libitm stack. Add current transaction as parameter.
* libitm_i.h (GTM::gtm_undolog::rollback): Adapt.
* beginend.cc (GTM::gtm_thread::rollback): Adapt.
* testsuite/libitm.c/stackundo.c: New test.
From-SVN: r183172
2012-01-13 23:45:06 +00:00
8377e5e546
libitm_i.h (_Unwind_DeleteException): Declare weak.
...
* libitm_i.h (_Unwind_DeleteException): Declare weak.
* eh_cpp.cc (_Unwind_DeleteException): Define for
!HAVE_ELF_STYLE_WEAKREF.
From-SVN: r183049
2012-01-09 19:16:07 -08:00
11f30bb0e4
libitm: Optimize undo log.
...
libitm/
* local.cc (GTM_LB): Use GTM::gtm_undolog.
(GTM::gtm_thread::drop_references_undolog): Remove.
(GTM::gtm_thread::commit_undolog,
GTM::gtm_thread::rollback_undolog): Move to ...
* libitm_i.h (GTM::gtm_undolog): ...here. New.
(GTM::gtm_undolog_entry): Remove.
(GTM::gtm_thread): Adapt.
* beginend.cc (GTM::gtm_thread::rollback): Adapt.
(GTM::gtm_thread::trycommit): Adapt.
* method-serial.cc (serial_dispatch::log): Adapt.
* method-gl.cc (gl_wt_dispatch::pre_write): Adapt.
(gl_wt_dispatch::store): Fix likely/unlikely.
* containers.h (GTM::vector::resize): Add additional_capacity
parameter and handle it.
(GTM::vector::resize_noinline): New/adapt.
(GTM::vector::push): New.
From-SVN: r182992
2012-01-08 14:13:49 +00:00
610e390135
libitm: Fix privatization safety during upgrades to serial mode.
...
libitm/
* beginend.cc (GTM::gtm_thread::restart): Add and handle
finish_serial_upgrade parameter.
* libitm.h (GTM::gtm_thread::restart): Adapt declaration.
* config/linux/rwlock.cc (GTM::gtm_rwlock::write_lock_generic):
Don't unset reader flag.
(GTM::gtm_rwlock::write_upgrade_finish): New.
* config/posix/rwlock.cc: Same.
* config/linux/rwlock.h (GTM::gtm_rwlock::write_upgrade_finish):
Declare.
* config/posix/rwlock.h: Same.
* method-serial.cc (GTM::gtm_thread::serialirr_mode): Unset reader
flag after commit or after rollback when restarting.
From-SVN: r182675
2011-12-24 01:42:35 +00:00
36cfbee133
libitm: Conversion to c++11 atomics.
...
* local_atomic: New file.
* libitm_i.h: Include it.
(gtm_thread::shared_state): Use atomic template.
* beginend.cc (GTM::gtm_clock): Use atomic template.
(global_tid): Use atomic template if 64-bit atomics available.
(gtm_thread::gtm_thread): Update shared_state access.
(gtm_thread::trycommit): Likewise.
(choose_code_path): Update global_tid access.
* method-gl.cc (gl_mg::orec): Use atomic template. Update all users.
* stmlock.h (GTM::gtm_clock): Use atomic template.
(gtm_get_clock, gtm_inc_clock): Update accesses.
* config/linux/rwlock.cc (gtm_rwlock::read_lock): Remove
redundant __sync_synchronize after atomic shared_state access.
* config/posix/rwlock.cc (gtm_rwlock::read_lock): Likewise.
(gtm_rwlock::write_lock_generic): Likewise.
(gtm_rwlock::read_unlock): Likewise.
* config/alpha/target.h (atomic_read_barrier): Remove.
(atomic_write_barrier): Remove.
* config/x86/target.h (atomic_read_barrier): Remove.
(atomic_write_barrier): Remove.
From-SVN: r182294
2011-12-13 11:11:25 -08:00
062f93f255
Swap the action and jmpbuf arguments to GTM_longjmp
...
On several ABIs, the first register parameter is the same as
the return value register. Moving the action parameter first
avoids the need for register shuffling on these targets.
* libitm_i.h (GTM_longjmp): Swap first and second arguments.
* beginend.c (_ITM_abortTransaction): Update to match.
(GTM::gtm_thread::restart): Likewise.
* config/alpha/sjlj.S (GTM_longjmp): Likewise.
* config/x86/sjlj.S (GTM_longjmp): Likewise.
From-SVN: r181863
2011-11-30 14:29:33 -08:00
0b41ebef72
sjlj.S (CONCAT1, [...]): Respond to __USER_LABEL_PREFIX__ for targets that use it.
...
libitm:
* config/x86/sjlj.S (CONCAT1, CONCAT2, SYM): Respond to
__USER_LABEL_PREFIX__ for targets that use it.
TYPE, SIZE, HIDDEN): New macros to assist on non-elf targets.
(_ITM_beginTransaction): Use SYM, TYPE, SIZE macros to assist
in portability to non-elf targets.
(GTM_longjmp): LIkewise.
* libitm_i.h (begin_transaction): Apply __USER_LABEL_PREFIX__
where required.
From-SVN: r181612
2011-11-22 09:57:19 +00:00
79b1edb6b5
libitm: Remove unused code.
...
In particular, unused code that's presenting portability problems.
From-SVN: r181241
2011-11-09 14:54:55 -08:00
0a35513e4e
Merge from transactional-memory branch.
...
From-SVN: r181154
2011-11-08 11:13:41 +00:00
Torvald Riegel