From-SVN: r251963

From-SVN: r251962

From-SVN: r251961

sem_util.adb (Check_Result_And_Post_State): Do not issue a warning about missing reference to an outcome if...

2017-09-11  Yannick Moy  <moy@adacore.com>

	* sem_util.adb (Check_Result_And_Post_State):
	Do not issue a warning about missing reference to an outcome if
	the subprogram is ghost and has no outputs.
	* lib-xref-spark_specific.adb, sem_aggr.adb, sem_aux.ads: Minor
	reformatting.

From-SVN: r251960

2017-09-11  Yannick Moy  <moy@adacore.com>

	* gnat1drv.adb (Adjust_Global_Switches): Set
	Check_Validity_Of_Parameters to False in GNATprove mode.
	* opt.ads (Check_Validity_Of_Parameters): Document switch to
	set option.

From-SVN: r251959

From-SVN: r251958

From-SVN: r251957

From-SVN: r251956

	PR ada/79441
	* gnat.dg/pack9.adb: Robustify.

From-SVN: r251951

2017-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/34640
	PR fortran/40737
	PR fortran/55763
	PR fortran/57019
	PR fortran/57116

	* expr.c (is_subref_array): Add class pointer array dummies
	to the list of expressions that return true.
	* trans-array.c: Add SPAN_FIELD and update indices for
	subsequent fields.
	(gfc_conv_descriptor_span, gfc_conv_descriptor_span_get,
	gfc_conv_descriptor_span_set, is_pointer_array,
	get_array_span): New functions.
	(gfc_get_descriptor_offsets_for_info): New function to preserve
	API for access to descriptor fields for trans-types.c.
	(gfc_conv_scalarized_array_ref): If the expression is a subref
	array, make sure that info->descriptor is a descriptor type.
	Otherwise, if info->descriptor is a pointer array, set 'decl'
	and fix it if it is a component reference.
	(build_array_ref): Simplify handling of class array refs by
	passing the vptr to gfc_build_array_ref rather than generating
	the pointer arithmetic in this function.
	(gfc_conv_array_ref): As in gfc_conv_scalarized_array_ref, set
	'decl'.
	(gfc_array_allocate): Set the span field if this is a pointer
	array. Use the expr3 element size if it is available, so that
	the dynamic type element size is used.
	(gfc_conv_expr_descriptor): Set the span field for pointer
	assignments.
	* trans-array.h: Prototypes for gfc_conv_descriptor_span_get
	gfc_conv_descriptor_span_set and
	gfc_get_descriptor_offsets_for_info added.
	trans-decl.c (gfc_get_symbol_decl): If a non-class pointer
	array, mark the declaration as a GFC_DECL_PTR_ARRAY_P. Remove
	the setting of GFC_DECL_SPAN.
	(gfc_trans_deferred_vars): Set the span field to zero in thge
	originating scope.
	* trans-expr.c (gfc_conv_procedure_call): Do not use copy-in/
	copy-out to pass subref expressions to a pointer dummy.
	(gfc_trans_pointer_assignment): Remove code for setting of
	GFC_DECL_SPAN. Set the 'span' field for non-class pointers to
	class function results. Likewise for rank remap. In the case
	that the target is not a whole array, use the target array ref
	for remap and, since the 'start' indices are missing, set the
	lbounds to one, as required by the standard.
	* trans-intrinsic.c (conv_expr_ref_to_caf_ref): Pick up the
	'token' offset from the field decl in the descriptor.
	(conv_isocbinding_subroutine): Set the 'span' field.
	* trans-io.c (gfc_trans_transfer): Always scalarize pointer
	array io.
	* trans-stmt.c (trans_associate_var): Set the 'span' field.
	* trans-types.c (gfc_get_array_descriptor_base): Add the 'span'
	field to the array descriptor.
	(gfc_get_derived_type): Pointer array components are marked as
	GFC_DECL_PTR_ARRAY_P.
	(gfc_get_array_descr_info): Replaced API breaking code for
	descriptor offset calling gfc_get_descriptor_offsets_for_info.
	* trans.c (get_array_span): New function.
	(gfc_build_array_ref): Simplify by calling get_array_span and
	obtain 'span' if 'decl' or 'vptr' present.
	* trans.h : Rename DECL_LANG_FLAG_6, GFC_DECL_SUBREF_ARRAY_P,
	as GFC_DECL_PTR_ARRAY_P.


2017-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/34640
	* gfortran.dg/associate_24.f90: New test.
	* gfortran.dg/assumed_type_2.f90: Adjust some of the tree dump
	checks.
	* gfortran.dg/no_arg_check_2.f90: Likewise.
	* gfortran.dg/pointer_array_1.f90: New test.
	* gfortran.dg/pointer_array_2.f90: New test.
	* gfortran.dg/pointer_array_7.f90: New test.
	* gfortran.dg/pointer_array_8.f90: New test.
	* gfortran.dg/pointer_array_component_1.f90: New test.
	* gfortran.dg/pointer_array_component_2.f90: New test.
	* gfortran.dg/goacc/kernels-alias-4.f95: Bump up both tree scan
	counts by 1.

	PR fortran/40737
	* gfortran.dg/pointer_array_3.f90: New test.

	PR fortran/57116
	* gfortran.dg/pointer_array_4.f90: New test.

	PR fortran/55763
	* gfortran.dg/pointer_array_5.f90: New test.

	PR fortran/57019
	* gfortran.dg/pointer_array_6.f90: New test.

2017-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/34640
	* libgfortran/libgfortran.h: Add span field to descriptor.
	* libgfortran/libtool-version : Bump up version number to 5:0:0.

From-SVN: r251949

	* constexpr.c (reduced_constant_expression_p): If
	CONSTRUCTOR_NO_IMPLICIT_ZERO, check that all fields are initialized.

From-SVN: r251948

From-SVN: r251945

	Check ultimate_origin before setting reusing_die.

From-SVN: r251941

From-SVN: r251940

gcc/c-family:

	PR c++/81852
	* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_threadsafe_static_init.

gcc/testsuite:

	PR c++/81852
	* g++.dg/cpp1y/feat-cxx11.C: Check __cpp_threadsafe_static_init.
	* g++.dg/cpp1y/feat-cxx14.C: Likewise.
	* g++.dg/cpp1y/feat-cxx98.C: Likewise.
	* g++.dg/cpp1y/feat-neg.C: Likewise.
	* g++.dg/cpp1z/feat-cxx1z.C: Likewise.

From-SVN: r251939

	* dwarf2out.c (gen_formal_parameter_die): Remove obsolete hunk.

	Check ultimate_origin before setting reusing_die.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r251938

decl.c (gnat_to_gnu_entity): Don't generate debug info for inner record types if -fgnat-encodings=minimal.

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Don't
	generate debug info for inner record types if -fgnat-encodings=minimal.
	(gnat_to_gnu_entity) <E_Record_Subtype>: Use the ultimate base record
	type as the debug type.

From-SVN: r251937

	* gcc-interface/decl.c (components_to_record): Do not reorder in non-
	packed record types if pragma Optimize_Alignment (Space) is enabled.

From-SVN: r251936

	* gcc-interface/trans.c (Subprogram_Body_to_gnu): Disregard inlining
	limits for expression functions.
	(gnat_to_gnu) <N_Object_Declaration>: Fix formatting.

From-SVN: r251935

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Copy the
	layout of the record from the parent type only if both are or are not
	unchecked unions.
	(is_stored_discriminant): Return false for an unchecked union.

From-SVN: r251934

	* gcc-interface/utils2.c (build_allocator): In type_annotate_only mode
	return NULL_EXPR.

From-SVN: r251933

	* gcc-interface/decl.c (promote_object_alignment): New function taken
	from...
	(gnat_to_gnu_entity) <E_Variable>: ...here.  Invoke it.
	(gnat_to_gnu_field): If the field is Atomic or VFA, invoke it and
	create a padding type on success before doing the atomic check.

From-SVN: r251931

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Apply the
	promotion to static memory earlier in the processing.

From-SVN: r251929

decl.c (gnat_to_gnu_entity): Only set the TYPE_ALIGN_OK and TYPE_BY_REFERENCE_P flags on types after various...

	* gcc-interface/decl.c (gnat_to_gnu_entity): Only set the TYPE_ALIGN_OK
	and TYPE_BY_REFERENCE_P flags on types after various promotions.
	* gcc-interface/trans.c (node_has_volatile_full_access) <N_Identifier>:
	Consider all kinds of entities.

From-SVN: r251927

2017-09-09  Paul Thomas  <pault@gcc.gnu.org>

	* decl.c : Add decl_type_param_list, type_param_spec_list as
	static variables to hold PDT spec lists.
	(build_sym): Copy 'type_param_spec_list' to symbol spec_list.
	(build_struct): Copy the 'saved_kind_expr' to the component
	'kind_expr'. Check that KIND or LEN components appear in the
	decl_type_param_list. These should appear as symbols in the
	f2k_derived namespace. If the component is itself a PDT type,
	copy the decl_type_param_list to the component param_list.
	(gfc_match_kind_spec): If the KIND expression is parameterized
	set KIND to zero and store the expression in 'saved_kind_expr'.
	(insert_parameter_exprs): New function.
	(gfc_insert_kind_parameter_exprs): New function.
	(gfc_insert_parameter_exprs): New function.
	(gfc_get_pdt_instance): New function.
	(gfc_match_decl_type_spec): Match the decl_type_spec_list if it
	is present. If it is, call 'gfc_get_pdt_instance' to obtain the
	specific instance of the PDT.
	(match_attr_spec): Match KIND and LEN attributes. Check for the
	standard and for type/kind of the parameter. They are also not
	allowed outside a derived type definition.
	(gfc_match_data_decl): Null the decl_type_param_list and the
	type_param_spec_list on entry and free them on exit.
	(gfc_match_formal_arglist): If 'typeparam' is true, add the
	formal symbol to the f2k_derived namespace.
	(gfc_match_derived_decl): Register the decl_type_param_list
	if this is a PDT. If this is a type extension, gather up all
	the type parameters and put them in the right order.
	*dump-parse-tree.c (show_attr): Signal PDT templates and the
	parameter attributes.
	(show_components): Output parameter atrributes and component
	parameter list.
	(show_symbol): Show variable parameter lists.
	* expr.c (expr.c): Copy the expression parameter list.
	(gfc_is_constant_expr): Pass on symbols representing PDT
	parameters.
	(gfc_check_init_expr): Break on PDT KIND parameters and
	PDT parameter expressions.
	(gfc_check_assign): Assigning to KIND or LEN components is an
	error.
	(derived_parameter_expr): New function.
	(gfc_derived_parameter_expr): New function.
	(gfc_spec_list_type): New function.
	* gfortran.h : Add enum gfc_param_spec_type. Add the PDT attrs
	to the structure symbol_attr. Add the 'kind_expr' and
	'param_list' field to the gfc_component structure. Comment on
	the reuse of the gfc_actual_arglist structure as storage for
	type parameter spec lists. Add the new field 'spec_type' to
	this structure. Add 'param_list' fields to gfc_symbol and
	gfc_expr. Add prototypes for gfc_insert_kind_parameter_exprs,
	gfc_insert_parameter_exprs, gfc_add_kind, gfc_add_len,
	gfc_derived_parameter_expr and gfc_spec_list_type.
	* interface.c (gfc_compare_derived_types): Treat PDTs in the
	same way as sequence types.
	* match.c : Add variable 'type_param_spec_list'.
	(gfc_op2string, gfc_match_member_sep, gfc_match_label): Remove
	trailing whitespace.
	(match_derived_type_spec): Match PDTs and find specific
	instance.
	(gfc_match_type_spec): Remove more trailing whitespace.
	(gfc_match_allocate): Assumed or deferred parameters cannot
	appear here. Copy the type parameter spec list to the expr for
	the allocatable entity. Free 'type_param_spec_list'.
	(gfc_match_common, gfc_match_namelist, gfc_match_module): Still
	more trailing whitespace to remove.
	(gfc_match_type_is): Allow PDT typespecs.
	* match.h : Modify prototypes for gfc_match_formal_arglist and
	gfc_match_actual_arglist.
	* module.c (ab_attribute, mstring attr_bits): PDT attributes
	added.
	(mio_symbol_attribute): PDT attributes handled.
	(mio_component): Deal with 'kind_expr' field.
	(mio_full_f2k_derived): For PDT templates, transfer the formal
	namespace symroot to the f2k_derived namespace.
	*primary.c (match_keyword_arg, gfc_match_actual_arglist): Add
	modifications to handle PDT spec lists. These are flagged in
	both cases by new boolean arguments, whose prototype defaults
	are false.
	(gfc_match_structure_constructor, match_variable): Remove yet
	more trailing whitespace.
	* resolve.c (get_pdt_spec_expr, get_pdt_constructor): New
	functions.
	(resolve_structure_cons): If the constructor is a PDT template,
	call get_pdt_constructor to build it using the parameter lists
	and then get the specific instance of the PDT.
	(resolve_component): PDT strings need a hidden string length
	component like deferred characters.
	(resolve_symbol): Dummy PDTs cannot have deferred parameters.
	* symbol.c (gfc_add_kind, gfc_add_len): New functions.
	(free_components): Free 'kind_expr' and 'param_list' fields.
	(gfc_free_symbol): Free the 'param_list' field.
	(gfc_find_sym_tree): If the current state is a PDT template,
	look for the symtree in the f2k_derived namspaces.
	trans-array.c (structure_alloc_comps): Allocate and deallocate
	PDTs. Check dummy arguments for compliance of LEN parameters.
	Add the new functions to the preceeding enum.
	(gfc_allocate_pdt_comp, gfc_deallocate_pdt_comp and
	gfc_check_pdt_dummy): New functions calling above.
	* trans-array.h : Add prototypes for these functions.
	trans-decl.c (gfc_get_symbol_decl): Call gfc_defer_symbol_init
	as appropriate for PDT symbols.
	(gfc_trans_deferred_vars): Allocate/deallocate PDT entities as
	they come into and out of scope. Exclude pdt_types from being
	'gcc_unreachable'.
	(gfc_trans_subcomponent_assign): PDT array components must be
	handles as if they are allocatable.
	* trans-stmt.c (gfc_trans_allocate): Handle initialization of
	PDT entities.
	(gfc_trans_deallocate): Likewise.
	* trans-types.c (gfc_get_derived_type): PDT templates must not
	arrive here. PDT string components are handles as if deferred.
	Similarly, PDT arrays are treated as if allocatable. PDT
	strings are pointer types.
	* trans.c (gfc_deferred_strlen): Handle PDT strings in the same
	way as deferred characters.


2017-09-09  Paul Thomas  <pault@gcc.gnu.org>

	* gfortran.dg/pdt_1.f03 : New test.
	* gfortran.dg/pdt_2.f03 : New test.
	* gfortran.dg/pdt_3.f03 : New test.
	* gfortran.dg/pdt_4.f03 : New test.
	* gfortran.dg/pdt_5.f03 : New test.

From-SVN: r251925

	* gcc-interface/utils.c (convert): When converting to a padding type,
	reuse an existing CONSTRUCTOR if it has got the right size.

From-SVN: r251924

	PR bootstrap/81926
	* cp-objcp-common.c (struct debug_type_hasher): New class.
	(debug_type_hash): New variable.
	(cp_get_debug_type): Associate the OFFSET_TYPEs with the types.

From-SVN: r251922

	* doc/xml/manual/allocator.xml: Adjust link for Hoard.
	* doc/html/manual/memory.html: Regenerate.

From-SVN: r251919

    
    The code that lowers field references can sometimes introduce a double
    pointer indirection in cases where it is not/safe appropriate. For
    example, in
    
            var p **struct { f int }
            p.f = 0
    
    the assignment LHS was being incorrectly lowered to (*(*p)).f.
    Detect this situation and issue an error.
    
    Fixes golang/go#21770
    
    Reviewed-on: https://go-review.googlesource.com/62330

From-SVN: r251918

From-SVN: r251917

	PR c++/70029 - ICE with ref-qualifier and -flto
gcc/
	* langhooks.h (struct lang_hooks_for_types): Add
	copy_lang_qualifiers.
	* attribs.c (build_type_attribute_qual_variant): Use it.
	* langhooks-def.h (LANG_HOOKS_COPY_LANG_QUALIFIERS): Default to
	NULL.
	(LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
	* tree.c (verify_type): Re-enable TYPE_CANONICAL main variant check.
gcc/cp/
	* tree.c (cxx_copy_lang_qualifiers): New.
	* cp-tree.h: Declare it.
	* cp-objcp-common.h: Define LANG_HOOKS_COPY_LANG_QUALIFIERS.

From-SVN: r251911

From-SVN: r251906

	PR target/81988
	* config/sparc/sparc.md (mulsi3): Rename into *mulsi3_sp32.
	(*mulsi3_sp64): New instruction.
	(mulsi3): New expander.

From-SVN: r251904

2017-09-08  Nicolas Roche  <roche@adacore.com>

	* gcc-interface/Make-lang.in, gcc-interface/Makefile.in: Find runtime
	source in libgnat/
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	g-hesora.ads, s-pack29.adb, a-nurear.ads, g-catiio.adb, s-stposu.adb,
	g-bubsor.ads, a-wtenio.ads, a-cbsyqu.ads, a-suewst.adb,
	system-vxworks-x86.ads, s-pack29.ads, a-cbmutr.adb, a-cbprqu.adb,
	s-imenne.adb, g-sothco-dummy.adb, g-casuti.adb, g-catiio.ads,
	s-stposu.ads, a-stzsea.adb, s-pack38.adb, a-suewst.ads, s-imgllw.adb,
	a-cbprqu.ads, a-cbmutr.ads, s-imenne.ads, g-sothco-dummy.ads,
	g-casuti.ads, s-htable.adb, s-fatsfl.ads, g-trasym.adb, unchconv.ads,
	a-stzsea.ads, s-arit64.adb, s-pack38.ads, a-nllcar.ads, s-valrea.adb,
	s-imgllw.ads, s-htable.ads, a-sequio.adb, g-trasym.ads, a-ngcoar.adb,
	s-exnllf.adb, s-pack47.adb, s-arit64.ads, g-sercom-mingw.adb,
	s-valrea.ads, g-socthi-mingw.adb, g-bytswa.adb, g-sehash.adb,
	unchdeal.ads, a-sequio.ads, a-ngcoar.ads, s-exnllf.ads, a-wtdeio.adb,
	s-pack47.ads, g-socthi-mingw.ads, a-excpol-abort.adb, a-ztgeau.adb,
	g-bytswa.ads, g-sehash.ads, s-pack56.adb, a-wtdeio.ads, a-ngelfu.adb,
	a-ztgeau.ads, a-cforse.adb, s-filatt.ads, a-stzfix.adb, a-cihase.adb,
	s-pack56.ads, a-sfztio.ads, a-ngelfu.ads, s-trasym-dwarf.adb,
	a-cforse.ads, a-ztfiio.adb, g-timsta.adb, a-stzfix.ads, a-cihase.ads,
	a-ztfiio.ads, system-darwin-arm.ads: Move non-tasking runtime sources
	to libgnat subdirectory.

From-SVN: r251902

From-SVN: r251901

2017-09-08  Yannick Moy  <moy@adacore.com>

	* sem_aux.adb, sem_aux.ads (Get_Called_Entity): New function to
	return the entity associated with the call.
	* sem_util.adb, sem_util.ads (Check_Function_Writable_Actuals):
	Replace the internal Get_Function_Id with the new
	Sem_Aux.Get_Called_Entity.
	(Iterate_Call_Parameters): New
	procedure to iterate on formals and actuals at the same time.
	* sem_ch12.adb (Analyze_Subprogram_Instantiation):
	Set SPARK_Mode from spec when set, for analysis
	of instance. Restore after analysis of instance.
	(Instantiate_Subprogram_Body): Set SPARK_Mode from body when
	set, for analysis of body instance. Restored automatically at
	the end of the subprogram.
	* gnat1drv.adb (Adjust_Global_Switches): Set
	Check_Validity_Of_Parameters to False in GNATprove mode.
	* opt.ads (Check_Validity_Of_Parameters): Document switch to
	set option.

From-SVN: r251900

	* config/alpha/alpha.c (alpha_print_operand) <case 'S'>: Remove.

From-SVN: r251899

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.adb (NCT_Tables_In_Use): Move to library level from...
	(New_Copy_Tree): ...there.  Reset the hash tables only if they
	were used in the previous invocation.
	* s-htable.adb: Fix typo.

2017-09-08  Bob Duff  <duff@adacore.com>

	* a-ssicst.adb (Open): Set File.Last_Op to the appropriate value.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

	* sem_aggr.adb: minor style fix.

2017-09-08  Bob Duff  <duff@adacore.com>

	* sprint.adb (Write_Corresponding_Source): Ignore if there is
	no current source file.
	(Write_Name_With_Col_Check, Write_Name_With_Col_Check_Sloc):
	Print something helpful in case N is invalid.
	* sprint.ads: Minor comment fix.

From-SVN: r251897

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb: (Aggr_Assignment_OK_For_Backend): Add early return for
	access types.

From-SVN: r251896

2017-09-08  Bob Duff  <duff@adacore.com>

	* par-prag.adb, sem_prag.adb, snames.ads-tmpl: Implement pragma
	Ada_2020, along the same lines as the other Ada version pragmas.

2017-09-08  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch12.adb: Minor typo fixes and reformatting.

2017-09-08  Yannick Moy  <moy@adacore.com>

	* sem_aggr.adb (Resolve_Record_Aggregate):
	Rewrite bounds of aggregate subexpressions which may depend on
	discriminants of the enclosing aggregate.

2017-09-08  Yannick Moy  <moy@adacore.com>

	* sem_ch5.adb: Prevent assertion failure on illegal code.

2017-09-08  Yannick Moy  <moy@adacore.com>

	* lib-xref-spark_specific.adb (Add_SPARK_Xrefs.Is_SPARK_Scope): Avoid
	calling Renamed_Entity on an entity which cannot be a renaming.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb: Add with & use clause for Urealp.
	(Aggr_Assignment_OK_For_Backend): Accept (almost all)
	elementary types instead of just discrete types.
	* sem_eval.adb (Expr_Value): Deal with N_Null for access types.
	* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>:
	Be prepared for the FP zero value in the memset case.  Add small
	guard.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* s-htable.adb (Static_HTable.Reset): Use aggregate instead
	of loop.

From-SVN: r251894