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From-SVN: r279813
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From-SVN: r267494
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gcc/c-family/
* c.opt (Wdeprecated-copy): New flag.
gcc/cp/
* call.c (build_over_call): Warn about deprecated trivial fns.
* class.c (classtype_has_user_copy_or_dtor): New.
(type_build_ctor_call): Check TREE_DEPRECATED.
(type_build_dtor_call): Likewise.
* decl2.c (cp_warn_deprecated_use): Move from tree.c.
Add checks. Return bool. Handle -Wdeprecated-copy.
(mark_used): Use it.
* decl.c (grokdeclarator): Remove redundant checks.
* typeck2.c (build_functional_cast): Likewise.
* method.c (lazily_declare_fn): Mark deprecated copy ops.
* init.c (build_aggr_init): Only set TREE_USED if there are
side-effects.
libitm/
* beginend.cc (save): Disable -Werror=deprecated-copy.
From-SVN: r260381
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From-SVN: r256169
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gcc/c-family/ChangeLog:
PR c++/80560
* c.opt (-Wclass-memaccess): New option.
gcc/cp/ChangeLog:
PR c++/80560
* call.c (first_non_public_field, maybe_warn_class_memaccess): New
functions.
(has_trivial_copy_assign_p, has_trivial_copy_p): Ditto.
(build_cxx_call): Call maybe_warn_class_memaccess.
gcc/ChangeLog:
PR c++/80560
* dumpfile.c (dump_register): Avoid calling memset to initialize
a class with a default ctor.
* gcc.c (struct compiler): Remove const qualification.
* genattrtab.c (gen_insn_reserv): Replace memset with initialization.
* hash-table.h: Ditto.
* ipa-cp.c (allocate_and_init_ipcp_value): Replace memset with
assignment.
* ipa-prop.c (ipa_free_edge_args_substructures): Ditto.
* omp-low.c (lower_omp_ordered_clauses): Replace memset with
default ctor.
* params.h (struct param_info): Make struct members non-const.
* tree-switch-conversion.c (emit_case_bit_tests): Replace memset
with default initialization.
* vec.h (vec_copy_construct, vec_default_construct): New helper
functions.
(vec<T>::copy, vec<T>::splice, vec<T>::reserve): Replace memcpy
with vec_copy_construct.
(vect<T>::quick_grow_cleared): Replace memset with default ctor.
(vect<T>::vec_safe_grow_cleared, vec_safe_grow_cleared): Same.
* doc/invoke.texi (-Wclass-memaccess): Document.
libcpp/ChangeLog:
PR c++/80560
* line-map.c (line_maps::~line_maps): Avoid calling htab_delete
with a null pointer.
(linemap_init): Avoid calling memset on an object of a non-trivial
type.
libitm/ChangeLog:
PR c++/80560
* beginend.cc (GTM::gtm_thread::rollback): Avoid calling memset
on an object of a non-trivial type.
(GTM::gtm_transaction_cp::commit): Use assignment instead of memcpy
to copy an object.
* method-ml.cc (orec_iterator::reinit): Avoid -Wclass-memaccess.
gcc/testsuite/ChangeLog:
PR c++/80560
* g++.dg/Wclass-memaccess.C: New test.
From-SVN: r249234
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From-SVN: r243994
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The attached patch adds the a target specific attribute via the
new target macro TARGET_BEGIN_TRANSACTION_ATTRIBUTE to the
function begin_transaction(). S/390 uses this to set the
soft-float target attribute which is needed to fix a crash with
-m31.
As there seems to be no place in libitm to document internal macros like
USE_HTM_FASTPATH or the new macro, I've put the documentation in a
comment where the macro is used.
2016-03-03 Dominik Vogt <vogt@linux.vnet.ibm.com>
* config/s390/target.h (TARGET_BEGIN_TRANSACTION_ATTRIBUTE): Define
function attribute to disable floating point in begin_transaction() on
S/390.
* beginend.cc (begin_transaction): Use
TARGET_BEGIN_TRANSACTION_ATTRIBUTE.
From-SVN: r233929
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* 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
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From-SVN: r232353
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From-SVN: r232322
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From-SVN: r232275
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From-SVN: r232055
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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
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From-SVN: r219188
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From-SVN: r206298
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* 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
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PR libitm/57643
* beginend.cc (gtm_thread::begin_transaction): Handle reentrancy in
the HTM fastpath.
From-SVN: r200250
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From-SVN: r195697
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* 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
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libitm/
* beginend.cc (GTM::gtm_thread::begin_transaction): Move serial lock
acquisition to ...
* retry.cc (GTM::gtm_thread::decide_begin_dispatch): ... here.
(default_dispatch): Make atomic.
(GTM::gtm_thread::set_default_dispatch): Access atomically.
(GTM::gtm_thread::decide_retry_strategy): Access atomically and
use decide_begin_dispatch() if default_dispatch might have changed.
(GTM::gtm_thread::number_of_threads_changed): Initialize
default_dispatch here.
From-SVN: r184392
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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
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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
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libitm/
* beginend.cc (GTM::gtm_thread::trycommit): Don't enforce
privatization safety if already in serial mode.
From-SVN: r182676
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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
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libitm/
* beginend.cc (GTM::gtm_thread::begin_transaction): Add comment.
(GTM::gtm_thread::try_commit): Changed memory order.
* config/linux/alpha/futex_bits.h (sys_futex0): Take atomic int
as parameter.
* config/linux/x86/futex_bits.h (sys_futex0): Same.
* config/linux/sh/futex_bits.h (sys_futex0): Same.
* config/linux/futex_bits.h (sys_futex0): Same.
* config/linux/futex.cc (futex_wait, futex_wake): Same.
* config/linux/futex.h (futex_wait, futex_wake): Same.
* config/linux/rwlock.h (gtm_rwlock::writers,
gtm_rwlock::writer_readers, gtm_rwlock::readers): Change to atomic
ints.
* config/linux/rwlock.cc (gtm_rwlock::read_lock,
gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
gtm_rwlock::write_unlock): Fix memory orders and fences.
* config/posix/rwlock.cc (gtm_rwlock::read_lock,
gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
gtm_rwlock::write_unlock): Same.
* config/linux/rwlock.h (gtm_rwlock::summary): Change to atomic int.
* method-gl.cc (gl_mg::init, gl_wt_dispatch::memtransfer_static,
gl_wt_dispatch::memset_static, gl_wt_dispatch::begin_or_restart):
Add comments.
(gl_wt_dispatch::pre_write, gl_wt_dispatch::validate,
gl_wt_dispatch::load, gl_wt_dispatch::store,
gl_wt_dispatch::try_commit, gl_wt_dispatch::rollback): Fix memory
orders and fences. Add comments.
From-SVN: r182674
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* 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
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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
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From-SVN: r181154
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