PR middle-end/81462
	* predict.c (set_even_probabilities): Cleanup; do not affect
	probabilities that are already known.
	(combine_predictions_for_bb): Call even when count is set.

	* g++.dg/torture/pr81462.C: New testcase.

From-SVN: r250310

       gcc/
	* tree-parloops.c (try_transform_to_exit_first_loop_alt): Use
	TYPE_MAX_VALUE.

       gcc/c-family/
	* c-warn.c (warn_for_memset): Use TYPE_{MIN,MAX}_VALUE.

       gcc/c/
	* c-parser.c (c_parser_array_notation): Use TYPE_{MIN,MAX}_VALUE.

       gcc/cp/ 
	* cp-array-notation.c (build_array_notation_ref): Use
	TYPE_{MIN,MAX}_VALUE.

       gcc/fortran/
	* trans.c (gfc_build_array_ref): Use TYPE_MAX_VALUE.

From-SVN: r250309

The P variable was deleted back in Nov 2015 (svn rev 231062),
but its expansion was missed.  Delete those now too.

From-SVN: r250307

	* class.c (classtype_has_move_assign_or_move_ctor): Declare.
	(add_implicitly_declared_members): Use it.
	(type_has_move_constructor, type_has_move_assign): Merge into ...
	(classtype_has_move_assign_or_move_ctor): ... this new function.
	* cp-tree.h (type_has_move_constructor, type_has_move_assign): Delete.

From-SVN: r250305

	PR target/81408
	* tree-ssa-loop-niter.c (number_of_iterations_exit): Dump missed
	optimization for loop niter analysis.

	gcc/testsuite
	* g++.dg/tree-ssa/pr81408.C: New.
	* gcc.dg/tree-ssa/pr19210-1.c: Check dump message rather than warning.

From-SVN: r250304

gcc/
	PR target/81473
	* config/avr/avr.c (avr_optimize_casesi): Don't use
	INT8_MIN, INT8_MAX, UINT8_MAX, INT16_MIN, INT16_MAX, UINT16_MAX.

From-SVN: r250301

npeel was erroneously overwritten by vect_peeling_hash_get_lowest_cost
although the corresponding dataref is not used afterwards.  It should
be safe to get rid of the npeel parameter since we use the returned
peeling_info's npeel anyway.  Also removed the body_cost_vec parameter
which is not used elsewhere.

gcc/ChangeLog:

2017-07-18  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Remove
	body_cost_vec from _vect_peel_extended_info.
	(vect_peeling_hash_get_lowest_cost): Do not set body_cost_vec.
	(vect_peeling_hash_choose_best_peeling): Remove body_cost_vec and
	npeel.

From-SVN: r250300

From-SVN: r250299

2017-07-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/80620
	PR tree-optimization/81403
	* tree-ssa-pre.c (phi_translate_1): Clear range and points-to
	info when re-using a VN table entry.

	* gcc.dg/torture/pr80620.c: New testcase.
	* gcc.dg/torture/pr81403.c: Likewise.

From-SVN: r250297

2017-06-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81418
	* tree-vect-loop.c (vectorizable_reduction): Properly compute
	vectype_in.  Verify that with lane-reducing reduction operations
	we have a single def-use cycle.

	* gcc.dg/torture/pr81418.c: New testcase.

From-SVN: r250296

gcc/ChangeLog:

2017-07-17  Carl Love  <cel@us.ibm.com>

	Revert commit r249424	2017-06-20  Carl Love  <cel@us.ibm.com>

	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
	ALTIVEC_BUILTIN_VMULESW, ALTIVEC_BUILTIN_VMULEUW,
	ALTIVEC_BUILTIN_VMULOSW, ALTIVEC_BUILTIN_VMULOUW entries.
	* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin,
	builtin_function_type): Add ALTIVEC_BUILTIN_* case statements.
	* config/rs6000/altivec.md (MVULEUW, VMULESW, VMULOUW,
	VMULOSW): New enum "unspec" values.
	(vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
	vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si,
	altivec_vmuleuw, altivec_vmulesw, altivec_vmulouw,
	altivec_vmulosw): New patterns.
	* config/rs6000/rs6000-builtin.def (VMLEUW, VMULESW, VMULOUW,
	VMULOSW): Add definitions.

gcc/testsuite/ChangeLog:

2017-07-17  Carl Love  <cel@us.ibm.com>

	Revert commit r249572 	2017-06-22 Carl Love  <cel@us.ibm.com>
	test case changes for commit 249424

	* gcc.target/powerpc/builtins-2.c (vmulosh, vmulouh, vmulesh,
	vmuleuh): Fix scan-assembler-times should check for word not half word
	instructions.

From-SVN: r250295

From-SVN: r250294

	* config/alpha/alpha.c: Include predict.h.

From-SVN: r250290

2017-07-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/81162
	* gcc.dg/pr81162.c: Move this to...
	* gcc.dg/ubsan/pr81162.c: ...here.

From-SVN: r250284

parser.c (cp_parser_decl_specifier_seq): Add fix-it hints for friend outside class and obsolete auto as...

        * parser.c (cp_parser_decl_specifier_seq): Add fix-it hints for
        friend outside class and obsolete auto as storage-class-specifier.

        * g++.dg/diagnostic/friend1.C: New test.
        * g++.dg/cpp0x/auto1.C: Add check for fix-it hint.

From-SVN: r250282

	* class.c (maybe_warn_about_overly_private_class): Ignore public
	copy ctors.

	* g++.dg/warn/ctor-dtor-privacy-3.C: New.

From-SVN: r250281

	* class.c (type_has_user_declared_move_constructor,
	type_has_user_declared_move_assign): Combine into ...
	(classtype_has_user_move_assign_or_move_ctor_p): ... this new function.
	* cp-tree.h (type_has_user_declared_move_constructor,
	type_has_user_declared_move_assign): Combine into ...
	(classtype_has_user_move_assign_or_move_ctor_p): ... this. Declare.
	* method.c (maybe_explain_implicit_delete): Use it.
	(lazily_declare_fn): Use it.
	* tree.c (type_has_nontrivial_copy_init): Use it.

From-SVN: r250280

2017-07-17  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * lib/gcc-dg.exp: Increase expect's match buffer size.

From-SVN: r250279

2017-07-17  Yury Gribov  <tetra2005@gmail.com>

gcc/
        * tree-vrp.c (compare_assert_loc): Fix comparison function
	to return predictable results.

From-SVN: r250278

Emitting subregs in the expand will result in broken code due to LRA handling of them. Issue observed while turning on mlra and mexpand-adddi options using dejagnu test suite. Deprecate this
option.

gcc/
2017-04-26  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (adddi3): Remove support for mexpand-adddi
	option.
	(subdi3): Likewise.
	* config/arc/arc.opt (mexpand-adddi): Deprecate it.
	* doc/invoke.texi (mexpand-adddi): Update text.

From-SVN: r250276

Emmitting COND_EXEC rtxes during expand does introduces errors due to LRA handling of them. Issue discovered while running dejagnu test suit with mlra option on.

gcc/
2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (clzsi2): Expand to an arc_clzsi2 instruction
	that also clobbers the CC register. The old expand code is moved
	to ...
	(*arc_clzsi2): ... here.
	(ctzsi2): Expand to an arc_ctzsi2 instruction that also clobbers
	the CC register. The old expand code is moved to ...
	(arc_ctzsi2): ... here.

From-SVN: r250275

Enable indexed loads only for elf target, as the linux ones need more testing.

gcc/
2017-02-28  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.opt (mindexed-loads): Use initial value
	TARGET_INDEXED_LOADS_DEFAULT.
	(mauto-modify-reg): Use initial value
	TARGET_AUTO_MODIFY_REG_DEFAULT.
	* config/arc/elf.h (TARGET_INDEXED_LOADS_DEFAULT): Define.
	(TARGET_AUTO_MODIFY_REG_DEFAULT): Likewise.
	* config/arc/linux.h (TARGET_INDEXED_LOADS_DEFAULT): Define.
	(TARGET_AUTO_MODIFY_REG_DEFAULT): Likewise.

From-SVN: r250274

	* semantics.c (classtype_has_nothrow_assign_or_copy_p): Clarify
	semantics, simplify implementation.

From-SVN: r250272

2017-07-17  Martin Liska  <mliska@suse.cz>

	PR sanitizer/81302
	* opts.c (finish_options): Do not allow -fgnu-tm
	w/ -fsanitize={kernel-,}address.  Say sorry.

From-SVN: r250271

	PR target/81369
	* tree-loop-distribution.c (classify_partition): Only assert on
	numer of iterations.
	(merge_dep_scc_partitions): Delete prameter.  Update function call.
	(distribute_loop): Remove code handling loop with unknown niters.
	(pass_loop_distribution::execute): Skip loop with unknown niters.

From-SVN: r250270

	PR target/81369
	* tree-loop-distribution.c (merge_dep_scc_partitions): Sink call to
	function sort_partitions_by_post_order.

	gcc/testsuite
	* gcc.dg/tree-ssa/pr81369.c: New.

From-SVN: r250269

	PR tree-optimization/81374
	* tree-loop-distribution.c (pass_loop_distribution::execute): Record
	the max index of basic blocks, rather than number of basic blocks.

From-SVN: r250268

This patch refactors a number of functions and compiler hooks into using a
single function which checks if a rtx is suited for pic or not. Removed
functions are arc_legitimate_pc_offset_p and arc_legitimate_pic_operand_p
beeing replaced by calls to arc_legitimate_pic_addr_p. Thus we have an
unitary way of checking a rtx beeing pic.

gcc/
2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-protos.h (arc_legitimate_pc_offset_p): Remove
	proto.
	(arc_legitimate_pic_operand_p): Likewise.
	* config/arc/arc.c (arc_legitimate_pic_operand_p): Remove
	function.
	(arc_needs_pcl_p): Likewise.
	(arc_legitimate_pc_offset_p): Likewise.
	(arc_legitimate_pic_addr_p): Remove LABEL_REF case, as this
	function is also used in constrains.md.
	(arc_legitimate_constant_p): Use arc_legitimate_pic_addr_p to
	validate pic constants. Handle CONST_INT, CONST_DOUBLE, MINUS and
	PLUS.  Only return true/false in known cases, otherwise assert.
	(arc_legitimate_address_p): Remove arc_legitimate_pic_addr_p as it
	is already called in arc_legitimate_constant_p.
	* config/arc/arc.h (CONSTANT_ADDRESS_P): Consider also LABEL for
	pic addresses.
	(LEGITIMATE_PIC_OPERAND_P): Use
	arc_raw_symbolic_reference_mentioned_p function.
	* config/arc/constraints.md (Cpc): Use arc_legitimate_pic_addr_p
	function.
	(Cal): Likewise.
	(C32): Likewise.

gcc/testsuite
2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>

	* gcc.target/arc/pr9000674901.c: New file.
	* gcc.target/arc/pic-1.c: Likewise.
	* gcc.target/arc/pr9001191897.c: Likewise.

From-SVN: r250267

gcc/
2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * config/arc/arc-protos.h (arc_compute_function_type): Change prototype.
        (arc_return_address_register): New function.
        * config/arc/arc.c (arc_handle_fndecl_attribute): New function.
        (arc_handle_fndecl_attribute): Add naked attribute.
        (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Define.
        (TARGET_WARN_FUNC_RETURN): Likewise.
        (arc_allocate_stack_slots_for_args): New function.
        (arc_warn_func_return): Likewise.
        (machine_function): Change type fn_type.
        (arc_compute_function_type): Consider new naked function type,
        change function return type.
        (arc_must_save_register): Adapt to handle new
        arc_compute_function_type's return type.
        (arc_expand_prologue): Likewise.
        (arc_expand_epilogue): Likewise.
        (arc_return_address_regs): Delete.
        (arc_return_address_register): New function.
        (arc_epilogue_uses): Use above function.
        * config/arc/arc.h (arc_return_address_regs): Delete prototype.
        (arc_function_type): Change encoding, add naked type.
        (ARC_INTERRUPT_P): Change to handle the new encoding.
        (ARC_FAST_INTERRUPT_P): Likewise.
        (ARC_NORMAL_P): Define.
        (ARC_NAKED_P): Likewise.
        (arc_compute_function_type): Delete prototype.
        * config/arc/arc.md (in_ret_delay_slot): Use
        arc_return_address_register function.
        (simple_return): Likewise.
        (p_return_i): Likewise.

gcc/testsuite
2017-07-17  Claudiu Zissulescu  <claziss@synopsys.com>
            Andrew Burgess  <andrew.burgess@embecosm.com>

        * gcc.target/arc/naked-1.c: New file.
        * gcc.target/arc/naked-2.c: Likewise.

Co-Authored-By: Andrew Burgess <andrew.burgess@embecosm.com>

From-SVN: r250266

re PR tree-optimization/81428 (ICE: in build_one_cst, at tree.c:2079 with -O2. Fixed point division.)

	PR tree-optimization/81428
	* match.pd (X / X -> one): Don't optimize _Fract divisions, as 1
	can't be built for those types.

	* gcc.dg/fixed-point/pr81428.c: New test.

From-SVN: r250265

	* config/avr/avr-arch.h (avr_inform_devices): Remove dead proto.
	* config/avr/avr-devices.c (mcu_name, comparator, avr_mcus_str)
	(avr_inform_devices): Remove dead stuff.

From-SVN: r250264

	* gcc_update (files_and_dependencies)
	[gcc/config/avr/avr-tables.opt]: Remove dead entry.

From-SVN: r250263

2017-07-17  Tamar Christina  <tamar.christina@arm.com>

	* config/arm/arm_neon.h: Fix softp typo.

From-SVN: r250262

	PR tree-optimization/81365
	* tree-ssa-phiprop.c (propagate_with_phi): When considering hoisting
	aggregate moves onto bb predecessor edges, make sure there are no
	loads that could alias the lhs in between the start of bb and the
	loads from *phi.

	* g++.dg/torture/pr81365.C: New test.

From-SVN: r250261

	PR 80929
	* config/avr/avr.c (avr_mul_highpart_cost): New static function.
	(avr_rtx_costs_1) [TRUNCATE]: Use it to compute mul_highpart cost.
	[LSHIFTRT, outer_code = TRUNCATE]: Same.

From-SVN: r250258

re PR tree-optimization/81396 (Optimization of reading Little-Endian 64-bit number with portable code has a regression)

	PR tree-optimization/81396
	* tree-ssa-math-opts.c (struct symbolic_number): Add n_ops field.
	(init_symbolic_number): Initialize it to 1.
	(perform_symbolic_merge): Add n_ops from both operands into the new
	n_ops.
	(find_bswap_or_nop): Don't consider n->n == cmpnop computations
	without base_addr as useless if they need more than one operation.
	(bswap_replace): Handle !bswap case for NULL base_addr.

	* gcc.dg/tree-ssa/pr81396.c: New test.

From-SVN: r250257

2017-07-17  Tom de Vries  <tom@codesourcery.com>

	PR target/81069
	* config/nvptx/nvptx.c (nvptx_single): Insert diverging branch as late
	as possible.

From-SVN: r250256

In case the LEON3FT back-to-back store workaround is active
(sparc_fix_b2bst), then define the builtin define __FIX_LEON3FT_B2BST on
RTEMS.  The intended use case for this is operating system code in
assembly language.  See also:

https://lists.rtems.org/pipermail/devel/2017-July/018463.html

gcc/
	*  gcc/config/sparc/rtemself.h (TARGET_OS_CPP_BUILTINS): Add
	conditional builtin define __FIX_LEON3FT_B2BST.

From-SVN: r250254

Replace MULTILIB_EXCEPTIONS with MULTILIB_REQUIRED for readability.
-mfix-gr712rc and -mfix-ut700 are currently equivalent.

gcc/
	* config/sparc/t-rtems: Add mfix-gr712rc multilibs. Replace
	MULTILIB_EXCEPTIONS with MULTILIB_REQUIRED. Match -mfix-gr712rc
	with -mfix-ut700.

From-SVN: r250252

From-SVN: r250251