gcc/c-family/ChangeLog:

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
	    Matthias Klose  <doko@debian.org>

	* c-common.c (get_source_date_epoch): New function, gets the environment
	variable SOURCE_DATE_EPOCH and parses it as long long with error 
	handling.
	* c-common.h (get_source_date_epoch): Prototype.
	* c-lex.c (c_lex_with_flags): set parse_in->source_date_epoch.

gcc/ChangeLog:

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
	    Matthias Klose  <doko@debian.org>

	* doc/cppenv.texi: Document SOURCE_DATE_EPOCH environment variable.

libcpp/ChangeLog:

2016-04-28  Eduard Sanou  <dhole@openmailbox.org>
	    Matthias Klose  <doko@debian.org>

	* include/cpplib.h (cpp_init_source_date_epoch): Prototype.
	* init.c (cpp_init_source_date_epoch): New function.
	* internal.h: Added source_date_epoch variable to struct
	cpp_reader to store a reproducible date.
	* macro.c (_cpp_builtin_macro_text): Set pfile->date timestamp from 
	pfile->source_date_epoch instead of localtime if source_date_epoch is 
	set, to be used for __DATE__ and __TIME__ macros to help reproducible 
	builds.

Co-Authored-By: Matthias Klose <doko@debian.org>

From-SVN: r235550

2016-04-28  Matthias Klose  <doko@ubuntu.com>

        * decl.c (parse_version): Don't encode the minor version in the abi
        version.

From-SVN: r235546

2016-04-28  Richard Biener  <rguenther@suse.de>

	PR middle-end/70777
	* fold-const.c (fold_binary_loc): Remove x*x to pow(x,2.0)
	canonicalization.

From-SVN: r235545

gcc/
	* common/config/sh/sh-common.c: Remove SH5 support.
	* config/sh/constraints.md: Likewise.
	* config/sh/config/sh/elf.h: Likewise.
	* config/sh/linux.h: Likewise.
	* config/sh/netbsd-elf.h: Likewise.
	* config/sh/predicates.md: Likewise.
	* config/sh/sh-c.c: Likewise.
	* config/sh/sh-protos.h: Likewise.
	* config/sh/sh.c: Likewise.
	* config/sh/sh.h: Likewise.
	* config/sh/sh.md: Likewise.
	* config/sh/sh.opt: Likewise.
	* config/sh/sync.md: Likewise.
	* config/sh/sh64.h: Delete.
	* config/sh/shmedia.h: Likewise.
	* config/sh/shmedia.md: Likewise.
	* config/sh/sshmedia.h: Likewise.
	* config/sh/t-netbsd-sh5-64: Likewise.
	* config/sh/t-sh64: Likewise.
	* config/sh/ushmedia.h: Likewise.

From-SVN: r235544

From-SVN: r235543

i386.md (sign_extend to memory peephole2s): Use general_reg_operand instead of register_operand predicate.

	* config/i386/i386.md (sign_extend to memory peephole2s): Use
	general_reg_operand instead of register_operand predicate.

From-SVN: r235539

2016-04-27  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* params.def (MIN_PARTITION_SIZE): Set default value to 10000.

From-SVN: r235538

2016-04-27  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* match.pd (A - B > A, A + B < A): New transformations.

gcc/testsuite/
	* gcc.dg/tree-ssa/overflow-2.c: New testcase.
	* gcc.dg/tree-ssa/minus-ovf.c: Likewise.

From-SVN: r235537

gcc/ChangeLog:

	* genattrtab.c (write_test_expr): New parameter EMIT_PARENS
	which defaults to true.  Emit an outer pair of parentheses only if
	EMIT_PARENS.  When continuing a chain of && or || (or & or |),
	don't emit parentheses for the right-hand operand.

From-SVN: r235536

From-SVN: r235535

re PR c++/69024 ([cilkpus] cilk_spawn is broken for initializations with implicit conversion operators defined)

	PR c++/69024
	PR c++/68997
	* cilk.c (cilk_ignorable_spawn_rhs_op): Change to external linkage.
	(cilk_recognize_spawn): Renamed from recognize_spawn and change to
	external linkage.
	(cilk_detect_and_unwrap): Corresponding changes.
	(extract_free_variables): Don't extract free variables from
	AGGR_INIT_EXPR slot.
	* c-common.h (cilk_ignorable_spawn_rhs_op): Prototype.
	(cilk_recognize_spawn): Likewise.

	PR c++/69024
	PR c++/68997
	* cp-gimplify.c (cp_gimplify_expr): Call cilk_cp_detect_spawn_and_unwrap
	instead of cilk_detect_spawn_and_unwrap.
	* cp-cilkplus.c (is_conversion_operator_function_decl_p): New.
	(find_spawn): New.
	(cilk_cp_detect_spawn_and_unwrap): New.
	* lambda.c: Include cp-cilkplus.h.
	* parser.c: Include cp-cilkplus.h.
	* cp-tree.h (cpp_validate_cilk_plus_loop): Move prototype into...
	* cp-cilkpus.h: New file.

	PR c++/69024
	PR c++/68997
	* g++.dg/cilk-plus/CK/pr68001.cc: Fix to not depend on broken
	diagnostic.
	* g++.dg/cilk-plus/CK/pr69024.cc: New test.
	* g++.dg/cilk-plus/CK/pr68997.cc: New test.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r235534

2016-04-27  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/altivec.md (altivec_lvx_<mode>): Remove.
	(altivec_lvx_<mode>_internal): Document.
	(altivec_lvx_<mode>_2op): New define_insn.
	(altivec_lvx_<mode>_1op): Likewise.
	(altivec_lvx_<mode>_2op_si): Likewise.
	(altivec_lvx_<mode>_1op_si): Likewise.
	(altivec_stvx_<mode>): Remove.
	(altivec_stvx_<mode>_internal): Document.
	(altivec_stvx_<mode>_2op): New define_insn.
	(altivec_stvx_<mode>_1op): Likewise.
	(altivec_stvx_<mode>_2op_si): Likewise.
	(altivec_stvx_<mode>_1op_si): Likewise.
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Expand vec_ld and vec_st during parsing.
	* config/rs6000/rs6000.c (altivec_expand_lvx_be): Commentary
	changes.
	(altivec_expand_stvx_be): Likewise.
	(altivec_expand_lv_builtin): Expand lvx built-ins to expose the
	address-masking behavior in RTL.
	(altivec_expand_stv_builtin): Expand stvx built-ins to expose the
	address-masking behavior in RTL.
	(altivec_expand_builtin): Change builtin code arguments for calls
	to altivec_expand_stv_builtin and altivec_expand_lv_builtin.
	(insn_is_swappable_p): Avoid incorrect swap optimization in the
	presence of lvx/stvx patterns.
	(alignment_with_canonical_addr): New function.
	(alignment_mask): Likewise.
	(find_alignment_op): Likewise.
	(recombine_lvx_pattern): Likewise.
	(recombine_stvx_pattern): Likewise.
	(recombine_lvx_stvx_patterns): Likewise.
	(rs6000_analyze_swaps): Perform a pre-pass to recognize lvx and
	stvx patterns from expand.
	* config/rs6000/vector.md (vector_altivec_load_<mode>): Use new
	expansions.
	(vector_altivec_store_<mode>): Likewise.

From-SVN: r235533

gcc/
	* config/aarch64/aarch64.md
	(*movhf_aarch64): Add "movi %0, #0" to zero up register and
	remove the "fp" attributes.
	(*movsf_aarch64): Add "movi %0, #0" to zero up register and
	add the "simd" attributes.
	(*movdf_aarch64): Likewise.
	(*movtf_aarch64): Remove the "fp" attributes.
	* testsuite/gcc.target/aarch64/fmovf-zero-reg.c: Update accordingly.
	* testsuite/gcc.target/aarch64/fmovd-zero-reg.c: Likewise.

From-SVN: r235532

The function maybe_set_first_label_num acts on a CODE_LABEL; we can
capture that in the type system.

gcc/ChangeLog:
	* emit-rtl.c (maybe_set_first_label_num): Strengthen param from
	rtx to rtx_code_label *.
	* rtl.h (maybe_set_first_label_num): Likewise.

From-SVN: r235525

The various struct df_problem instances are constant data; mark them
as such.

gcc/ChangeLog:
	* df-core.c (df_add_problem): Make the problem param be const.
	(df_remove_problem): Make local "problem" be const.
	* df-problems.c (problem_RD): Make const.
	(problem_LR): Likewise.
	(problem_LIVE): Likewise.
	(problem_MIR): Likewise.
	(problem_CHAIN): Likewise.
	(problem_WORD_LR): Likewise.
	(problem_NOTE): Likewise.
	(problem_MD): Likewise.
	* df-scan.c (problem_SCAN): Likewise.
	* df.h (struct df_problem): Make field "dependent_problem" be
	const.
	(struct dataflow): Likewise for field "problem".
	(df_add_problem): Make param const.

From-SVN: r235524

i386.c (ix86_spill_class): Enable for TARGET_SSE2 when inter-unit moves to/from vector registers are enabled.

	* config/i386/i386.c (ix86_spill_class): Enable for TARGET_SSE2 when
	inter-unit moves to/from vector registers are enabled.  Do not disable
	for TARGET_MMX.

From-SVN: r235523

Whilst debugging an issue in df, I noticed that there are
some #define constants that could be an enum (thus making them known
to gdb).

Convert them to a new enum, and update the "id" field of
struct df_problem.

gcc/ChangeLog:
	* df.h (DF_SCAN, DF_LR, DF_LIVE, DF_RD, DF_CHAIN, DF_WORD_LR,
	DF_NOTE, DF_MD, DF_MIR, DF_LAST_PROBLEM_PLUS1): Convert from
	#define to...
	(enum df_problem_id): ...this new enum.
	(struct df_problem): Convert field "id" from "int" to
	enum df_problem_id.

From-SVN: r235522

sem_aux.adb (Is_By_Reference_Type): Also return true for a tagged incomplete type without full view.

	* sem_aux.adb (Is_By_Reference_Type): Also return true for a tagged
	incomplete type without full view.
	* sem_ch6.adb (Exchange_Limited_Views): Change into a function and
	return the list of changes.
	(Restore_Limited_Views): New procedure to undo the transformation made
	by Exchange_Limited_Views.
	(Analyze_Subprogram_Body_Helper): Adjust call to Exchange_Limited_Views
	and call Restore_Limited_Views at the end, if need be.
	(Possible_Freeze): Do not delay freezing because of incomplete types.
	(Process_Formals): Remove kludges for class-wide types.
	* types.h (By_Copy_Return): Delete.
	* gcc-interface/ada-tree.h (TYPE_MAX_ALIGN): Move around.
	(TYPE_DUMMY_IN_PROFILE_P): New macro.
	* gcc-interface/gigi.h (update_profiles_with): Declare.
	(finish_subprog_decl): Likewise.
	(get_minimal_subprog_decl): Delete.
	(create_subprog_type): Likewise.
	(create_param_decl): Adjust prototype.
	(create_subprog_decl): Likewise.
	* gcc-interface/decl.c (defer_limited_with): Rename into...
	(defer_limited_with_list): ...this.
	(gnat_to_gnu_entity): Adjust to above renaming.
	(finalize_from_limited_with): Likewise.
	(tree_entity_vec_map): New structure.
	(gt_pch_nx): New helpers.
	(dummy_to_subprog_map): New hash table.
	(gnat_to_gnu_param): Set the SLOC here.  Remove MECH parameter and
	add FIRST parameter.  Deal with the mechanism here instead of...
	Do not make read-only variant of types.  Simplify expressions.
	In the by-ref case, test the mechanism before must_pass_by_ref
	and also TYPE_IS_BY_REFERENCE_P before building the reference type.
	(gnat_to_gnu_subprog_type): New static function extracted from...
	Do not special-case the type_annotate_only mode.  Call
	gnat_to_gnu_profile_type instead of gnat_to_gnu_type on return type.
	Deal with dummy return types.  Likewise for parameter types.  Deal
	with by-reference types explicitly and add a kludge for null procedures
	with untagged incomplete types.  Remove assertion on the types and be
	prepared for multiple elaboration of the declarations.  Skip the whole
	CICO processing if the profile is incomplete.  Handle the completion of
	a previously incomplete profile.
	(gnat_to_gnu_entity) <E_Variable>: Rename local variable.
	Adjust couple of calls to create_param_decl.
	<E_Access_Subprogram_Type, E_Anonymous_Access_Subprogram_Type>:
	Remove specific deferring code.
	<E_Access_Type>: Also deal with E_Subprogram_Type designated type.
	Simplify handling of dummy types and remove obsolete comment.
	Constify a couple of variables.  Do not set TYPE_UNIVERSAL_ALIASING_P
	on dummy types.
	<E_Access_Subtype>: Tweak comment and simplify condition.
	<E_Subprogram_Type>: ...here.  Call it and clean up handling.  Remove
	obsolete comment and adjust call to gnat_to_gnu_param.  Adjust call to
	create_subprog_decl.
	<E_Incomplete_Type>: Add a couple of 'const' qualifiers and get rid of
	inner break statements.  Tidy up condition guarding direct use of the
	full view.
	(get_minimal_subprog_decl): Delete.
	(finalize_from_limited_with): Call update_profiles_with on dummy types
	with TYPE_DUMMY_IN_PROFILE_P set.
	(is_from_limited_with_of_main): Delete.
	(associate_subprog_with_dummy_type): New function.
	(update_profile): Likewise.
	(update_profiles_with): Likewise.
	(gnat_to_gnu_profile_type): Likewise.
	(init_gnat_decl): Initialize dummy_to_subprog_map.
	(destroy_gnat_decl): Destroy dummy_to_subprog_map.
	* gcc-interface/misc.c (gnat_get_alias_set): Add guard for accessing
	TYPE_UNIVERSAL_ALIASING_P.
	(gnat_get_array_descr_info): Minor tweak.
	* gcc-interface/trans.c (gigi): Adjust calls to create_subprog_decl.
	(build_raise_check): Likewise.
	(Compilation_Unit_to_gnu): Likewise.
	(Identifier_to_gnu): Accept mismatches coming from a limited context.
	(Attribute_to_gnu): Remove kludge for dispatch table entities.
	(process_freeze_entity): Do not retrieve old definition if there is an
	address clause on the entity.  Call update_profiles_with on dummy types
	with TYPE_DUMMY_IN_PROFILE_P set.
	* gcc-interface/utils.c (build_dummy_unc_pointer_types): Also set
	TYPE_REFERENCE_TO to the fat pointer type.
	(create_subprog_type): Delete.
	(create_param_decl): Remove READONLY parameter.
	(finish_subprog_decl): New function extracted from...
	(create_subprog_decl): ...here.  Call it.  Remove CONST_FLAG and
	VOLATILE_FLAG parameters and adjust.
	(update_pointer_to): Also clear TYPE_REFERENCE_TO in the unconstrained
	case.

From-SVN: r235521

Commit r210360 removed the first "i" field from the various instruction
nodes in rtx.def, moving it to an explicit "int insn_uid;" field
of the union "u2" within rtx_def.

Update the comment in rtl.def to reflect this change.  Also, fix
a stray apostrophe.

gcc/ChangeLog:
	* rtl.def: Update comment for "things in the instruction chain" to
	reflect the removal of the leading "i" field for INSN_UID in
	r210360.  Fix bogus apostrophe.

From-SVN: r235520

	* config/i386/i386.md
	(lea arith with mem operand + setcc peephole2): Set operator mode.

From-SVN: r235519

128-bit SSE load and store instructions can be used for load and store
of 128-bit integers if they are the only operations on 128-bit integers.
To convert load and store of 128-bit integers to 128-bit SSE load and
store, the original STV pass, which is designed to convert 64-bit integer
operations to SSE2 operations in 32-bit mode, is extended to 64-bit mode
in the following ways:

1. Class scalar_chain is turned into base class.  The 32-bit specific
member functions are moved to the new derived class, dimode_scalar_chain.
The new derived class, timode_scalar_chain, is added to convert oad and
store of 128-bit integers to 128-bit SSE load and store.
2. Add the 64-bit version of scalar_to_vector_candidate_p and
remove_non_convertible_regs.  Only TImode load and store are allowed
for conversion.  If one instruction on the chain of dependent
instructions aren't TImode load or store, the chain of instructions
won't be converted.
3. In 64-bit, we only convert from TImode to V1TImode, which have the
same size.  The difference is only vector registers are allowed in
TImode so that 128-bit SSE load and store instructions will be used
for load and store of 128-bit integers.
4. Put the 64-bit STV pass before the CSE pass so that instructions
changed or generated by the STV pass can be CSEed.

convert_scalars_to_vector calls free_dominance_info in 64-bit mode to
work around ICE in fwprop pass:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70807

when building libgcc on Linux/x86-64.

gcc/

	PR target/70155
	* config/i386/i386.c (scalar_to_vector_candidate_p): Renamed
	to ...
	(dimode_scalar_to_vector_candidate_p): This.
	(timode_scalar_to_vector_candidate_p): New function.
	(scalar_to_vector_candidate_p): Likewise.
	(timode_check_non_convertible_regs): Likewise.
	(timode_remove_non_convertible_regs): Likewise.
	(remove_non_convertible_regs): Likewise.
	(remove_non_convertible_regs): Renamed to ...
	(dimode_remove_non_convertible_regs): This.
	(scalar_chain::~scalar_chain): Make it virtual.
	(scalar_chain::compute_convert_gain): Make it pure virtual.
	(scalar_chain::mark_dual_mode_def): Likewise.
	(scalar_chain::convert_insn): Likewise.
	(scalar_chain::convert_registers): Likewise.
	(scalar_chain::add_to_queue): Make it protected.
	(scalar_chain::emit_conversion_insns): Likewise.
	(scalar_chain::replace_with_subreg): Likewise.
	(scalar_chain::replace_with_subreg_in_insn): Likewise.
	(scalar_chain::convert_op): Likewise.
	(scalar_chain::convert_reg): Likewise.
	(scalar_chain::make_vector_copies): Likewise.
	(scalar_chain::convert_registers): New pure virtual function.
	(class dimode_scalar_chain): New class.
	(class timode_scalar_chain): Likewise.
	(scalar_chain::mark_dual_mode_def): Renamed to ...
	(dimode_scalar_chain::mark_dual_mode_def): This.
	(timode_scalar_chain::mark_dual_mode_def): New function.
	(timode_scalar_chain::convert_insn): Likewise.
	(dimode_scalar_chain::convert_registers): Likewise.
	(scalar_chain::compute_convert_gain): Renamed to ...
	(dimode_scalar_chain::compute_convert_gain): This.
	(scalar_chain::replace_with_subreg): Renamed to ...
	(dimode_scalar_chain::replace_with_subreg): This.
	(scalar_chain::replace_with_subreg_in_insn): Renamed to ...
	(dimode_scalar_chain::replace_with_subreg_in_insn): This.
	(scalar_chain::make_vector_copies): Renamed to ...
	(dimode_scalar_chain::make_vector_copies): This.
	(scalar_chain::convert_reg): Renamed to ...
	(dimode_scalar_chain::convert_reg ): This.
	(scalar_chain::convert_op): Renamed to ...
	(dimode_scalar_chain::convert_op): This.
	(scalar_chain::convert_insn): Renamed to ...
	(dimode_scalar_chain::convert_insn): This.
	(scalar_chain::convert): Call convert_registers.
	(convert_scalars_to_vector): Change to scalar_chain pointer to
	use timode_scalar_chain in 64-bit mode and dimode_scalar_chain
	in 32-bit mode.  Delete scalar_chain pointer.  Call
	free_dominance_info in 64-bit mode.
	(pass_stv::gate): Remove TARGET_64BIT check.
	(ix86_option_override): Put the 64-bit STV pass before the CSE
	pass.

gcc/testsuite/

	PR target/70155
	* gcc.target/i386/pr55247-2.c: Updated to check movti_internal
	and movv1ti_internal patterns
	* gcc.target/i386/pr70155-1.c: New test.
	* gcc.target/i386/pr70155-2.c: Likewise.
	* gcc.target/i386/pr70155-3.c: Likewise.
	* gcc.target/i386/pr70155-4.c: Likewise.
	* gcc.target/i386/pr70155-5.c: Likewise.
	* gcc.target/i386/pr70155-6.c: Likewise.
	* gcc.target/i386/pr70155-7.c: Likewise.
	* gcc.target/i386/pr70155-8.c: Likewise.
	* gcc.target/i386/pr70155-9.c: Likewise.
	* gcc.target/i386/pr70155-10.c: Likewise.
	* gcc.target/i386/pr70155-11.c: Likewise.
	* gcc.target/i386/pr70155-12.c: Likewise.
	* gcc.target/i386/pr70155-13.c: Likewise.
	* gcc.target/i386/pr70155-14.c: Likewise.
	* gcc.target/i386/pr70155-15.c: Likewise.
	* gcc.target/i386/pr70155-16.c: Likewise.
	* gcc.target/i386/pr70155-17.c: Likewise.
	* gcc.target/i386/pr70155-18.c: Likewise.
	* gcc.target/i386/pr70155-19.c: Likewise.
	* gcc.target/i386/pr70155-20.c: Likewise.
	* gcc.target/i386/pr70155-21.c: Likewise.
	* gcc.target/i386/pr70155-22.c: Likewise.

From-SVN: r235518

	* gcc.target/i386/avx512vl-vmovdqa64-1.c: Replace ".{5}" with
	".{5,6}".

From-SVN: r235516

As discussed on
<https://gcc.gnu.org/ml/gcc-patches/2016-02/msg01708.html>, this change
removes a field in the dw_loc_descr_node structure so we can get rid of
the CHECKING_P macro usage.

This field was used to perform consistency checks for frame offset in
DWARF procedures. As a replacement, this commit turns the "visited
nodes" set in resolve_args_picking_1 into a map that remembers for each
dw_loc_descr_node the frame offset associated to it, so that the
consistency check is still operational.

Boostrapped and regtested on x86_64-linux.

2016-04-27  Pierre-Marie de Rodat  <derodat@adacore.com>

	* dwarf2out.h (struct dw_loc_descr_node): Remove the
	dw_loc_frame_offset field.
	* dwarf2out.c (new_loc_descr): Likewise.
	(resolve_args_picking_1): Turn the VISITED hash set into a
	FRAME_OFFSET hash map. Use it to associate a frame offset to
	visited nodes. Remove uses of the CHECKING_P macro.
	(resolve_args_picking): Update call to resolve_args_picking_1.

From-SVN: r235515

	* tree-ssa-loop-ivopts.c (iv_ca_dump): Fix level of indentation.
	(free_loop_data): Release vuses of groups.

From-SVN: r235514

tree-ssa-loop-ivopts.c (struct iv): Use pointer to struct iv_use instead of redundant use_id and boolean have_use_for.

	* tree-ssa-loop-ivopts.c (struct iv): Use pointer to struct iv_use
	instead of redundant use_id and boolean have_use_for.
	(struct iv_use): Change sub_id into group_id.  Remove field next.
	Move fields: related_cands, n_map_members, cost_map and selected
	to ...
	(struct iv_group): ... here.  New structure.
	(struct iv_common_cand): Use structure declaration directly.
	(struct ivopts_data, iv_ca, iv_ca_delta): Rename fields.
	(MAX_CONSIDERED_USES): Rename macro to ...
	(MAX_CONSIDERED_GROUPS): ... here.
	(n_iv_uses, iv_use, n_iv_cands, iv_cand): Delete.
	(dump_iv, dump_use, dump_cand): Refactor format of dump information.
	(dump_uses): Rename to ...
	(dump_groups): ... here.  Update all uses.
	(tree_ssa_iv_optimize_init, alloc_iv): Update all uses.
	(find_induction_variables): Refactor format of dump information.
	(record_sub_use): Delete.
	(record_use): Update all uses.
	(record_group): New function.
	(record_group_use, find_interesting_uses_op): Call above functions.
	Update all uses.
	(find_interesting_uses_cond): Ditto.
	(group_compare_offset): New function.
	(split_all_small_groups): Rename to ...
	(split_small_address_groups_p): ... here.  Update all uses.
	(split_address_groups):  Update all uses.
	(find_interesting_uses): Refactor format of dump information.
	(add_candidate_1): Update all uses.  Remove redundant check on iv,
	base and step.
	(add_candidate, record_common_cand): Remove redundant assert.
	(add_iv_candidate_for_biv): Update use.
	(add_iv_candidate_derived_from_uses): Update all uses.
	(add_iv_candidate_for_groups, record_important_candidates): Ditto.
	(alloc_use_cost_map): Ditto.
	(set_use_iv_cost, get_use_iv_cost): Rename to ...
	(set_group_iv_cost, get_group_iv_cost): ... here.  Update all uses.
	(determine_use_iv_cost_generic): Ditto.
	(determine_group_iv_cost_generic): Ditto.
	(determine_use_iv_cost_address): Ditto.
	(determine_group_iv_cost_address): Ditto.
	(determine_use_iv_cost_condition): Ditto.
	(determine_group_iv_cost_cond): Ditto.
	(determine_use_iv_cost): Ditto.
	(determine_group_iv_cost): Ditto.
	(set_autoinc_for_original_candidates): Update all uses.
	(find_iv_candidates): Update all uses.  Refactor dump information.
	(determine_use_iv_costs): Ditto.
	(determine_iv_costs): Ditto.
	(iv_ca_cand_for_use): Rename to ...
	(iv_ca_cand_for_group): ... here.  Update all uses.
	(iv_ca_add_use, iv_ca_add_group): Ditto.
	(iv_ca_set_cp, iv_ca_cost, iv_ca_delta_add): Update all uses.
	(iv_ca_delta_join, iv_ca_delta_reverse, iv_ca_delta_free): Ditto.
	(iv_ca_new, iv_ca_dump, iv_ca_extend, iv_ca_narrow): Ditto.
	(iv_ca_prune, cheaper_cost_with_cand, iv_ca_replace): Ditto.
	(try_add_cand_for, try_improve_iv_set, find_optimal_iv_set): Ditto.
	(create_new_iv, adjust_iv_update_pos): Ditto.
	(rewrite_use_address): Delete.
	(rewrite_use_address_1): Rename to ...
	(rewrite_use_address): ... here.
	(rewrite_use_compare): Update all uses.
	(rewrite_use): Delete.
	(rewrite_uses): Rename to ...
	(rewrite_groups): ... here.  Update all uses.
	(remove_unused_ivs, free_loop_data): Update all uses.
	(tree_ssa_iv_optimize_finalize, tree_ssa_iv_optimize_loop): Ditto.

	gcc/testsuite/ChangeLog
	* gcc.dg/tree-ssa/pr64705.c: Revise check string.
	* gcc.dg/tree-ssa/scev-9.c: Ditto.
	* gcc.dg/tree-ssa/scev-10.c: Ditto.
	* gcc.dg/tree-ssa/scev-11.c: Ditto.
	* gcc.dg/tree-ssa/scev-12.c: Ditto.

From-SVN: r235513

	* rtlanal.c (nonzero_bits1): Convert preprocessor check
	for WORD_REGISTER_OPERATIONS to runtime check.

From-SVN: r235512

2016-04-27  Richard Biener  <rguenther@suse.de>

	PR ipa/70760
	* tree-ssa-structalias.c (find_func_aliases_for_call): Use
	aggregate_value_p to determine if a function result is
	returned by reference.
	(ipa_pta_execute): Functions having their address taken are
	not automatically nonlocal.

	* g++.dg/ipa/ipa-pta-2.C: New testcase.
	* gcc.dg/ipa/ipa-pta-1.c: Adjust.

From-SVN: r235511

	PR sanitizer/70683
	* tree-core.h (enum operand_equal_flag): Add OEP_NO_HASH_CHECK.
	* fold-const.c (operand_equal_p): If flag_checking and
	OEP_NO_HASH_CHECK is not set in flag, recurse with OEP_NO_HASH_CHECK
	and if it returns non-zero, assert iterative_hash_expr on both
	args is the same.

From-SVN: r235507

	cp/
	* constexpr.c (get_fundef_copy): Use the original function for
	non-recursive evaluations.
	(save_fundef_copy): Always expect a slot to be available.

	testsuite/
	* g++.dg/cpp0x/constexpr-recursion3.C: New.
	* g++.dg/ubsan/pr63956.C: Adjust error location.

From-SVN: r235506

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

	* aa_util.adb, aa_util.ads: Removed, no longer used.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Analyze_Pragma): An object
	renaming declaration resulting from the expansion of an object
	declaration is a suitable context for pragma Ghost.

2016-04-27  Doug Rupp  <rupp@adacore.com>

	* init.c: Refine last checkin so the only requirement is the
	signaling compilation unit is compiled with the same mode as
	the compilation unit containing the initial landing pad.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Valid_Default_Iterator): Better filter of illegal
	specifications for Default_Iterator, including overloaded cases
	where no interpretations are legal, and return types that are
	not iterator types.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch5.adb (Expand_N_Assignment_Statement): Do not install
	an accessibility check when the left hand side of the assignment
	denotes a container cursor.
	* exp_util.ads, exp_util.adb (Find_Primitive_Operations): Removed.
	* sem_ch4.adb (Find_Indexing_Operations): New routine.
	(Try_Container_Indexing): Code cleanup.

From-SVN: r235505

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch10.adb, sem_case.adb: Mark messages udner -gnatwr when needed.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* errout.adb, errutil.adb: Minor reformatting.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Analyze_Aspect_Specifications, case Pre/Post):
	Check that the classwide version is illegal when the prefix is
	an operation of an untagged synchronized type.

From-SVN: r235504

2016-04-27  Arnaud Charlet  <charleT@adacore.com>

	* sinput-l.ads, sem_ch13.adb: Minor editing.

2016-04-27  Doug Rupp  <rupp@adacore.com>

	* init.c (__gnat_adjust_context_for_raise) [arm-linux thumb]:
	Bump the pc so the lower order bit is set.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_case.adb, sem_case.ads (NO_Op): If appropriate warning is
	enabled, report an empty range in a case construct.

From-SVN: r235503

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

	* sinput.ads, a-cfdlli.adb, a-crbtgo.adb, a-chtgop.adb, a-cbhama.adb,
	a-rbtgbo.adb, a-crdlli.adb, a-chtgbo.adb: Minor editing.

From-SVN: r235502

2016-04-27  Bob Duff  <duff@adacore.com>

	* a-chtgop.adb (Adjust): Zero the tampering counts on assignment,
	as is done for the other containers.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* ghost.adb (In_Subprogram_Body_Profile): New routine.
	(Is_OK_Declaration): Treat an unanalyzed expression
	function as an OK context.  Treat a reference to a Ghost entity
	as OK when it appears within the profile of a subprogram body.

2016-04-27  Bob Duff  <duff@adacore.com>

	* errout.ads: Document the fact that informational messages
	don't have to be warnings.
	* errout.adb (Error_Msg_Internal): In statistics counts, deal
	correctly with informational messages that are not warnings.
	(Error_Msg_NEL): Remove useless 'if' aroung Set_Posted, because
	Set_Posted already checks for errors and ignores others.
	* erroutc.adb (Prescan_Message): Set Is_Serious_Error to False
	if Is_Info_Msg; the previous code was assuming that Is_Info_Msg
	implies Is_Warning_Msg.
	* errutil.adb (Error_Msg): In statistics counts, deal correctly
	with informational messages that are not warnings.

From-SVN: r235500

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.ads, sem_util.adb (Is_Null_Record_Type): New predicate
	to determine whether a record type is a null record.
	* sem_ch3.adb (Analyze_Object_Declaration): If the type is a
	null record and there is no expression in the declaration,
	no predicate check applies to the object.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch7.adb (Analyze_Package_Body_Helper): The body of an
	instantiated package should not cause freezing of previous contracts.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_dim.adb (Analyze_Dimension): Handle subtype declarations
	that do not come from source.
	(Analyze_Dimension_Subtype_Declaration): Allow confirming
	dimensions on subtype entity, either inherited from base type
	or provided by aspect specification.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* s-gearop.ads (Matrix_Vector_Solution, Matrix_Matrix_Solution):
	Add scalar formal object Zero, to allow detection and report
	when the matrix is singular.
	* s-gearop.adb (Matrix_Vector_Solution, Matrix_Matrix_Solution):
	Raise Constraint_Error if the Forward_Eliminate pass has
	determined that determinant is Zero.o
	* s-ngrear.adb (Solve): Add actual for Zero in corresponding
	instantiations.
	* s-ngcoar.adb (Solve): Ditto.

From-SVN: r235499

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch3.adb: Minor reformatting.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_dim.adb (Analyze_Dimension, case N_Identifier): Check
	that identifier has a usable type before analysis, to handle
	properly identifiers introduced after some lexical/syntactic
	recovery that created new identifiers.

From-SVN: r235498

2016-04-27  Bob Duff  <duff@adacore.com>

	* a-coinve.adb, a-comutr.adb, a-conhel.adb, a-convec.adb,
	exp_util.adb: Remove assertions that can fail in obscure cases when
	assertions are turned on but tampering checks are turned off.

2016-04-27  Javier Miranda  <miranda@adacore.com>

	* exp_ch6.adb (Add_Call_By_Copy_Code,
	Add_Simple_Call_By_Copy_Code, Expand_Actuals): Handle formals
	whose type comes from the limited view.

2016-04-27  Yannick Moy  <moy@adacore.com>

	* a-textio.adb: Complete previous patch.

2016-04-27  Yannick Moy  <moy@adacore.com>

	* inline.adb (Expand_Inlined_Call): Use Cannot_Inline instead of
	Error_Msg_N to issue message about impossibility to inline call,
	with slight change of message.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_spark.adb (Expand_Potential_Renaming): Removed.
	(Expand_SPARK): Update the call to expand a potential renaming.
	(Expand_SPARK_Potential_Renaming): New routine.
	* exp_spark.ads (Expand_SPARK_Potential_Renaming): New routine.
	* sem.adb Add with and use clauses for Exp_SPARK.
	(Analyze): Expand a non-overloaded potential renaming for SPARK.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Constrain_Discriminated_Type): In an instance,
	check full view for the presence of defaulted discriminants,
	even when the partial view of a private type has no visible and
	no unknown discriminants.

From-SVN: r235497

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* lib-xref.adb, exp_ch3.adb: Minor reformatting.

2016-04-27  Nicolas Roche  <roche@adacore.com>

	* rtinit.c: Add weak symbol __gnat_do_argv_expansion.

From-SVN: r235496

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Process_Atomic_Independent_Shared_Volatile): Code
	cleanup. Check the original node when trying to determine the node kind
	of pragma Volatile's argument to account for untagged derivations
	where the type is transformed into a constrained subtype.

2016-04-27  Olivier Hainque  <hainque@adacore.com>

	* mkdir.c (__gnat_mkdir): Rework the vxworks section to use a
	consistent posix interface on the caller side.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch10.adb (Build_Limited_View, Decorate_Type): If this
	is a limited view of a type, initialize the Limited_Dependents
	field to catch misuses of the type in a client unit.

2016-04-27  Thomas Quinot  <quinot@adacore.com>

	* a-strunb-shared.adb (Finalize): add missing Reference call.
	* s-strhas.adb: minor grammar fix and extension of comment
	* sem_ch8.adb: minor whitespace fixes

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* lib-xref.adb (Get_Type_Reference): Handle properly the case
	of an object declaration whose type definition is a class-wide
	subtype and whose expression is a function call that returns a
	classwide type.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.ads, sem_util.adb (Output_Entity): New routine.
	(Output_Name): New routine.

2016-04-27  Bob Duff  <duff@adacore.com>

	* exp_ch3.adb (Rewrite_As_Renaming): Disable previous change for now.

From-SVN: r235495

2016-04-27  Vincent Celier  <celier@adacore.com>

	* gnatcmd.adb: For "gnat ls -V -P", recognize switch
	--unchecked-shared-lib-imports and set the flag
	Opt.Unchecked_Shared_Lib_Imports accordingly.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_prag.adb (Analyze_Pre_Post_Condition_In_Decl_Part):
	A generic subprogram is never a primitive operation, and thus
	a classwide condition for it is not legal.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_aggr.adb, sem_dim.adb, sem_dim.ads, einfo.adb: Minor
	reformatting.

From-SVN: r235494