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14 Commits

Author SHA1 Message Date
Jakub Jelinek 8d9254fc8a Update copyright years. 
From-SVN: r279813
 2020-01-01 12:51:42 +01:00
Jakub Jelinek a554497024 Update copyright years. 
From-SVN: r267494
 2019-01-01 13:31:55 +01:00
Jakub Jelinek 85ec4feb11 Update copyright years. 
From-SVN: r256169
 2018-01-03 11:03:58 +01:00
Martin Sebor c3684b7b86 PR c++/80560 - warn on undefined memory operations involving non-trivial types 
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
 2017-06-15 21:48:59 -06:00
Jakub Jelinek cbe34bb5ed Update copyright years. 
From-SVN: r243994
 2017-01-01 13:07:43 +01:00
Torvald Riegel d2653984bf libitm: Ensure proxy privatization safety. 
* method-gl.cc (gl_wt_dispatch::trycommit): Ensure proxy privatization
	safety.
	* method-ml.cc (ml_wt_dispatch::trycommit): Likewise.
	* libitm/testsuite/libitm.c/priv-1.c: New.

From-SVN: r232469
 2016-01-16 22:08:41 +00:00
Torvald Riegel 629e47295b libitm: Fix privatization safety interaction with serial mode. 
From-SVN: r232322
 2016-01-13 12:40:34 +00:00
Jakub Jelinek 818ab71a41 Update copyright years. 
From-SVN: r232055
 2016-01-04 15:30:50 +01:00
Torvald Riegel e7f7330fed libitm: Use multiplicative hashing in the multi-lock TM method. 
* method-ml.cc (ml_mg): Use multiplicative instead of simple hashing.
	(ml_wt_dispatch::pre_write): Adapt.
	(ml_wt_dispatch::pre_load): Likewise.

From-SVN: r230975
 2015-11-26 16:10:54 +00:00
Jakub Jelinek 5624e564d2 Update copyright years. 
From-SVN: r219188
 2015-01-05 13:33:28 +01:00
Richard Sandiford f93608e6d4 Update copyright years in libitm/ 
From-SVN: r206298
 2014-01-02 22:26:00 +00:00
Richard Sandiford 75f9527c9b Update copyright in libitm. 
From-SVN: r195697
 2013-02-03 17:46:11 +00:00
Torvald Riegel b679c81340 Ask dispatch whether it requires serial mode. 
* retry.cc (gtm_thread::decide_begin_dispatch): Ask dispatch whether
	it requires serial mode instead of assuming that for certain
	dispatchs.
	* dispatch.h (abi_dispatch::requires_serial): New.
	(abi_dispatch::abi_dispatch): Adapt.
	* method-gl.cc (gl_wt_dispatch::gl_wt_dispatch): Adapt.
	* method-ml.cc (ml_wt_dispatch::ml_wt_dispatch): Same.
	* method-serial.cc (serialirr_dispatch::serialirr_dispatch,
	serial_dispatch::serial_dispatch,
	serialirr_onwrite_dispatch::serialirr_onwrite_dispatch): Same.

From-SVN: r192777
 2012-10-24 19:52:02 +00:00
Torvald Riegel 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