2005-06-14 Thomas Quinot <quinot@adacore.com>
* exp_dist.adb (Add_RACW_Primitive_Declarations_And_Bodies): For an
RACW without any primitives, do not generate the if statement for
dispatching by name in the PolyORB/DSA case, as it would be malformed
(it would have an Elsif_Parts list that is not No_List, but with a
length of 0).
From-SVN: r101035
2005-06-14 Nicolas Setton <setton@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* exp_dbug.ads, exp_dbug.adb (Get_Variant_Part): Fix the encoding of
the "simple_choice" member in a variant record, in accordance with the
description in the package spec: the information output for a constant
should be "S number", not "SS number".
(Get_Encoded_Name): Return at once if not generating code. Avoids name
overflow problem when compiling with -gnatct, for ASIS/gnatmetrics.
From-SVN: r101034
2005-06-14 Ed Schonberg <schonberg@adacore.com>
* exp_ch7.adb (Find_Node_To_Be_Wrapped): If the node appears within
the entry_call alternative of a conditional entry call, wrap the
conditional entry call itself.
From-SVN: r101033
2005-06-14 Thomas Quinot <quinot@adacore.com>
* exp_ch2.adb (Param_Entity): Take the case of an expanded_name
denoting a formal parameter into account.
From-SVN: r101032
2005-06-14 Ed Schonberg <schonberg@adacore.com>
* exp_aggr.adb (Aggr_Size_OK): An array with no components can always
be expanded in place. The size computation does not require a
subtraction, which would raise an exception on a compiler built with
assertions when the upper bound is Integer'first.
(Flatten): For an array of composite components, take into account the
size of the components to determine whether it is safe to expand the
array into a purely positional representation.
From-SVN: r101031
2005-06-14 Ed Schonberg <schonberg@adacore.com>
Robert Dewar <dewar@adacore.com>
* errout.ads, errout.adb (Error_Msg_NW): Only emit warning on user
code, not on the bodies of predefined operations, to cut down on
spurious noise.
From-SVN: r101030
2005-06-14 Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
Thomas Quinot <quinot@adacore.com>
Robert Dewar <dewar@adacore.com>
Hristian Kirtchev <kirtchev@adacore.com>
Gary Dismukes <dismukes@adacore.com>
* einfo.ads, einfo.adb (Is_Local_Anonymous_Access): New flag on
anonymous access types, to indicate that the accessibility level of
the type is determined by that of the enclosing declaration.
(Has_Persistent_BSS): New flag
(Set_Is_Primitive_Wrapper): Upgrade the barrier to allow the usage
of this attribute with functions.
(Is_Primitive_Wrapper): Remove the barrier.
(Has_Specified_Stream_Input, Has_Specified_Stream_Output,
Has_Specified_Stream_Read, Has_Specified_Stream_Write):
New subprograms.
(Set_Has_Specified_Stream_Input, Set_Has_Specified_Stream_Output,
Set_Has_Specified_Stream_Read, Set_Has_Specified_Stream_Write):
New subprograms.
(Is_Pure_Unit_Access_Type): New flag
(Abstract_Interfaces): Complete the assertion to cover all usages.
(Set_Is_Interface): Complete the assertion to cover all usages.
(Is_Primitive_Wrapper): New attribute.
(Is_Obsolescent): Now applies to all entities (though it is only set
for subprograms currently)
New flag: Has_Constrained_Partial_View, to implemente Ada 2005 AI-363,
which solves various problems concerning access subtypes.
(Has_Persistent_BSS): New flag
(Is_Primitive_Wrapper, Set_Primitive_Wrapper): Code cleanup.
Remove these subprograms because this attribute is currently
not used.
New entity flags:
Has_Specified_Stream_Input (Flag190)
Has_Specified_Stream_Output (Flag191)
Has_Specified_Stream_Read (Flag192)
Has_Specified_Stream_Write (Flag193)
Present in all type and subtype entities. Set for a given view if the
corresponding stream-oriented attribute has been defined by an
attribute definition clause. When such a clause occurs, a TSS is set
on the underlying full view; the flags are used to track visibility of
the attribute definition clause for partial or incomplete views.
(Is_Pure_Unit_Access_Type): New flag
Clarify use of Is_Internal.
(Is_Primitive_Wrapper): New attribute present in primitive subprograms
internally generated to wrap the invocation of tasks and protected
types that implement interfaces.
(Implementation_Base_Type): Documentation correction
(Is_Obsolescent): Now applies to all entities (though it is only set
for subprograms currently)
New flag: Has_Constrained_Partial_View, to implement Ada 2005 AI-363,
which solves various problems concerning access subtypes.
* exp_ch9.adb (Type_Conformant_Parameters): Introduce mode conformance
for examined parameters. Identify unequal parameter list lengths as
non-conformant parameters.
(Overriding_Possible): Do not check for "All" qualifier in declaration
of controlling access parameter, following prescription of AI-404.
(Build_Entry_Wrapper_Spec, Build_Entry_Wrapper_Body): New subprograms
that build the procedure body that wraps an entry invocation
(Build_Corresponding_Record, Build_Protected_Sub_Specification,
Expand_N_Protected_Body, Expand_N_Protected_Type_Declaration,
Expand_N_Task_Body, Expand_N_Task_Type_Declaration): Modified to
give support to abstract interface types
* freeze.adb (Freeze_Entity): Issue error message if
Is_Pure_Unit_Access_Type set, unless we are in Ada 2005 mode and the
type has no storage pool (Ada 2005) AI-366.
Also modified to give support to abstract interface types
(Freeze_Subprogram): Issue an error for a dispatching subprogram with an
Inline_Always pragma.
* par-ch9.adb (P_Task_Items): Reserved words "not" or "overriding" may
now begin an entry declaration.
(P_Entry_Or_Subprogram_With_Indicator): New procedure in
P_Protected_Operation_Declaration_Opt. Parse an entry declaration or
a subprogram declaration preceded by an overriding indicator.
(P_Protected_Operation_Declaration_Opt): Add case for parsing entry
declarations or subprogram declarations preceded by reserved words
"not" or "overriding".
(P_Entry_Declaration): Update comment. Parse and check overriding
indicator, set semantic flags of entry declarations.
(P_Task): New error message in case of private applied
to a task type declaration.
(P_Protected): New error message in case of private applied
to a task type declaration.
* sem_ch7.adb (Preserve_Full_Attributes): Modified to handle the case
in which the full view of a type implementing an interface is a
concurrent type.
(Has_Overriding_Pragma): Remove obsolete implementation of AI-218.
Declare_Inherited_Private_Subprograms): If an explicit operation
overrides an operation that is inherited in the private part, mark the
explicit one as overriding, to enable overriding indicator checks.
(Preserve_Full_Attributes): Propagate Is_Unchecked_Union attribute from
full view to partial view, to simplify handling in back-end.
* sprint.adb: Print interface lists where needed: derived types,
protected types, task types.
output "is null" for null procedures. Part of implementation of
* sem_cat.adb (Validate_Access_Type_Declaration): Implement AI-366
relaxation of rules for access types in pure, shared passive partitions.
* exp_strm.adb (Build_Mutable_Record_Read_Procedure): Reorganize to
first read discriminants into temporary objects, performing checks on
the read values, then possibly performing discriminant checks on the
actual (if it is constrained), and only finally reading the components
into a constrained temporary object.
(Build_Elementary_Input_Call): Adjust the specific circuitry for the
case of reading discriminants of a mutable record type to recognize
the new form of the code generated by
Build_Mutable_Record_Read_Procedure.
* exp_tss.ads, exp_tss.adb (Make_Init_Proc_Name): Reimplement in terms
of a simple call to Make_TSS_Name.
(Make_TSS_Name_Local): Add the TSS name as the last thing in the name
buffer, in order for Is_TSS to work correctly on local TSS names.
* sem_attr.ads, sem_attr.adb (Resolve_Attribute, case 'Access): Use flag
Is_Local_Anonymous_Access to check legaliy of attributes in the
context of access components and stand-alone access objects.
(Stream_Attribute_Available): In Ada 95 mode, a stream attribute is
treated as available for a limited private type if there is an
attribute_definition_clause that applies to its full view, but not in
other cases where the attribute is available for the full view
(specifically, the sole fact that the full view is non-limited does not
make the attribute available for the partial view).
(Build_Access_Subprogram_Type): Diagnose attempt to apply 'access to a
non-overloaded intrinsic subprogram.
(Check_Stream_Attribute): Reject an attribute reference for an
unavailable stream attribute even if the prefix is not a limited type
(case of a 'Input attribute reference for an abstract, non-classwide
type)
(Stream_Attribute_Available): New function to determine whether a stream
attribute is available at a place.
(Check_Attribute): Use Stream_Attribute_Available instead of just
testing for TSS presence on the implementation base type.
(Analyze_Attribute): Modified to give support to task interfaces.
(Analyze_Access_Attribute): Add error check for use of an Access (or
Unrestricted_Access) attribute with a subprogram marked as
Inline_Always.
(Analyze_Attribute, case Attribute_Address): Add error check for use of
an Address attribute with a subprogram marked as Inline_Always.
Update Eval_Attribute to handle new value of Width from AI-395
* sem_ch13.adb (Analyze_Stream_TSS_Definition): New subprogram.
(Analyze_Attribute_Definition_Clause, cases Input, Output, Read, Write):
Factor common code across the stream-oriented attribute circcuits into
a new subprogram, Analyze_Stream_TSS_Definition. The new uniform
processing is functionally identical to the previous duplicated one,
except that an expression that denotes an abstract subprogram will now
be rejected, as mandated by AI-195 item 5.
* sem_util.ads, sem_util.adb (Type_Access_Level): Use flag
Is_Local_Anonymous_Access to apply accessibility checks to access
components and stand-alone access objects.
(Has_Discriminant_Dependent_Constraint): Moved to spec for use
elsewhere.
(Is_Potentially_Persistent_Type): New function
(Is_Dependent_Component_Of_Mutable_Object): If the enclosing object is
a heap-object whose type has a constrained partial view, the object is
unconstrained and the component may depend on a discriminant, making its
renaming illegal.
* sinfo.ads, sinfo.adb
(Must_Not_Override): Flag applicable to N_Entry_Declaration.
(Must_Override): Flag applicable to N_Entry_Declaration.
Indicate that interface_list can appear in single task and single
protected declarations.
Replace Is_Overriding and Not_Overriding with Must_Override and
Must_Not_Override, to better express intent of AI.
Is_Overriding, Not_Overriding: Ada2005 flags that indicate the presence
of an overriding indicator in a subprogram or instance.
Ada 2005 (AI-248) Null_Present can appear in a procedure specification.
Add the overriding indicator [[not] overriding] construct to the
following grammar productions:
ENTRY_DECLARATION
GENERIC_INSTANTIATION
SUBPROGRAM_SPECIFICATION
* par-ch10.adb (P_Compilation_Unit): Subprogram declaration or body
can start with an overriding indicator.
* par-ch6.adb (P_Subprogram): Recognize overriding indicator, and set
flags accordingly on subrogram specifications or instances.
* sem_ch8.adb:
(Analyze_Subprogram_Renaming): For a renaming_as_body, verify that the
overriding_indicator, if present, is consistent with status of spec.
Improve error message for null-excluding checks on controlling access
parameters.
(Check_In_Previous_With_Clause): Protect the frontend against
previously reported critical errors in the context clauses.
Save and restore Ada_Version_Explicit, for implementation of AI-362
(Analyze_Subprogram_Renaming): If the new entity is a dispatching
operation verify that controlling formals of the renamed entity that
are access parameters are explicitly non-null.
(Find_Expanded_Name): Improve error message when prefix is an illegal
reference to a private child unit.
* exp_imgv.adb, s-imgwch.ads, s-imgwch.adb, s-valwch.adb,
s-valwch.ads, s-widwch.adb, s-widwch.ads, s-wwdcha.adb, s-wwdwch.adb:
Rewrite to correspond to new wide character names in AI-395
* par-ch12.adb (P_Formal_Subprogram_Declaration): Recognize null
default procedures.
From-SVN: r101029
2005-06-14 Vincent Celier <celier@adacore.com>
* clean.adb (Clean_Project): Correctly delete executable specified as
absolute path names.
* make.adb (Gnatmake): Allow relative executable path names with
directory information even when project files are used.
(Change_To_Object_Directory): Fail gracefully when unable to change
current working directory to object directory of a project.
(Gnatmake): Remove exception handler that could no longer be exercized
(Compile_Sources.Compile): Use deep copies of arguments, as some of them
may be deallocated by Normalize_Arguments.
(Collect_Arguments): Eliminate empty arguments
* gnatcmd.adb (All_Projects): New Boolean flag, initialized to False,
and set to True when -U is used for GNAT PRETTY or GNAT METRIC.
(Check_Project): Return False when Project is No_Project. Return True
when All_Projects is True.
(GNATCmd): Recognize switch -U for GNAT PRETTY and GNAT METRIC and set
All_Projects to True.
Minor reformatting
From-SVN: r101028
2005-06-14 Ed Schonberg <schonberg@adacore.com>
* checks.adb (Install_Null_Excluding_Check): Do not generate checks
for an attribute reference that returns an access type.
(Apply_Discriminant_Check): No need for check if (designated) type has
constrained partial view.
(Apply_Float_Conversion_Check): Generate a short-circuit expression for
both bound checks, rather than a conjunction.
(Insert_Valid_Check): If the expression is an actual that is an indexed
component of a bit-packed array, force expansion of the packed element
reference, because it is specifically inhibited elsewhere.
From-SVN: r101027
2005-06-14 Robert Dewar <dewar@adacore.com>
* a-textio.adb (Set_Col): Fix two errors noticed recently, having to
do with treatment of Set_Col when positioned at end of line character.
From-SVN: r101025
2005-06-14 Gary Dismukes <dismukes@adacore.com>
Javier Miranda <miranda@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Hristian Kirtchev <kirtchev@adacore.com>
* exp_ch4.adb (Expand_Allocator_Expression): When an initialized
allocator's designated type is a class-wide type, and compiling for
Ada 2005, emit a run-time check that the accessibility level of the
type given in the allocator's expression is not deeper than the level
of the allocator's access type.
(Tagged_Membership): Modified to gives support to abstract interface
types.
* a-tags.ads, a-tags.adb (type Type_Specific_Data): Add component
Access_Level.
(Descendant_Tag): New predefined function
(Is_Descendant_At_Same_Level): New predefined function
(Get_Access_Level): New private function
(Set_Access_Level): New private procedure
(IW_Membership): New function. Given the tag of an object and the tag
associated with an interface, evaluate if the object implements the
interface.
(Register_Interface_Tag): New procedure used to initialize the table of
interfaces used by the IW_Membership function.
(Set_Offset_To_Top): Initialize the Offset_To_Top field in the prologue
of the dispatch table.
(Inherit_TSD): Modified to copy the table of ancestor tags plus the
table of interfaces of the parent.
(Expanded_Name): Raise Tag_Error if the passed tag equals No_Tag.
(External_Tag): Raise Tag_Error if the passed tag equals No_Tag.
(Parent_Tag): Return No_Tag in the case of a root-level tagged type,
and raise Tag_Error if the passed tag equalis No_Tag, to conform with
Ada 2005 semantics for the new predefined function.
* exp_attr.adb (Expand_N_Attribute, case Attribute_Input): Generate
call to Descendant_Tag rather than Internal_Tag.
(Expand_N_Attribute, case Attribute_Output): Emit a check to ensure that
the accessibility level of the attribute's Item parameter is not deeper
than the level of the attribute's prefix type. Tag_Error is raised if
the check fails. The check is only emitted for Ada_05.
(Find_Stream_Subprogram): If a TSS exists on the type itself for the
requested stream attribute, use it.
(Expand_N_Attribute_Reference): If the designated type is an interface
then rewrite the referenced object as a conversion to force the
displacement of the pointer to the secondary dispatch table.
(Expand_N_Attribute_Reference, case 'Constrained): Return false if this
is a dereference of an object with a constrained partial view.
* exp_ch5.adb (Expand_N_Return_Statement): When a function's result
type is a class-wide type, emit a run-time check that the accessibility
level of the returned object is not deeper than the level of the
function's master (only when compiling for Ada 2005).
* exp_disp.ads, exp_disp.adb (Ada_Actions, Action_Is_Proc,
Action_Nb_Arg): Add entries for new Get_Access_Level and
Set_Access_Level routines in these tables.
(Make_DT): Generate a call to set the accessibility level of the
tagged type in its TSD.
(Make_DT): Code cleanup. The functionality of generating all the
secondary dispatch tables has been moved to freeze_record_type.
(Make_Abstract_Interface_DT): Minor code cleanup.
(Set_All_DT_Position): Code cleanup. As part of the code cleanup
this subprogram implements a new algorithm that provides the
same functionality and it is more clear in case of primitives
associated with abstract interfaces.
(Set_All_Interfaces_DTC_Entity): Removed. As part of the code
clean up, the functionality of this subprogram is now provided
by Set_All_DT_Position.
(Write_DT): New subprogram: a debugging procedure designed to be called
within gdb to display the dispatch tables associated with a tagged
type.
(Collect_All_Interfaces): New subprogram that collects the whole list
of interfaces that are directly or indirectly implemented by a tagged
type.
(Default_Prim_Op_Position): New subprogram that returns the fixed
position in the dispatch table of the default primitive operations.
(Expand_Interface_Actuals): New subprogram to generate code that
displaces all the actuals corresponding to class-wide interfaces to
reference the interface tag of the actual object.
(Expand_Interface_Conversion): New subprogram. Reference the base of
the object to give access to the interface tag associated with the
secondary dispatch table.
(Expand_Interface_Thunk): New subprogram that generates the code of the
thunk. This is required for compatibility with the C+ ABI.
(Make_Abstract_Interface_DT): New subprogram that generate the
declarations for the secondary dispatch tables associated with an
abstract interface.
(Set_All_Interfaces_DTC_Entity): New subprogram that sets the DTC_Entity
attribute for each primitive operation covering interface subprograms
(Expand_Dispatching_Call, Fill_DT_Entry, Make_DT, Set_All_DT_Position):
These subprograms were upgraded to give support to abstract interfaces
* rtsfind.ads (type RE_Id): Add RE_Descendant_Tag,
RE_Is_Descendant_At_Same_Level, RE_Get_Access_Level, and
RE_Set_Access_Level.
(RE_Unit_Table): Add entries for new Ada.Tags operations.
Add support to call the followig new run-time subprograms:
IW_Membership, Register_Interface_Tag, and Set_Offset_To_Top
* sem_ch3.adb (Constant_Redeclaration): Allow a deferred constant to
match its full declaration when both have an access definition with
statically matching designated subtypes.
(Analyze_Component_Declaration): Delete commented out code that was
incorrectly setting the scope of an anonymous access component's type.
(Process_Discriminants): Set Is_Local_Anonymous_Access for the type of
an access discriminant when the containing type is nonlimited.
(Make_Incomplete_Type_Declaration): Create an incomplete type
declaration for a record type that includes self-referential access
components.
(Check_Anonymous_Access_Types): Before full analysis of a record type
declaration, create anonymous access types for each self-referential
access component.
(Analyze_Component_Declaration, Array_Type_Declaration): Indicate that
an access component in this context is a Local_Anonymous_Access, for
proper accessibility checks.
(Access_Definition): Set properly the scope of the anonymous access type
created for a stand-alone access object.
(Find_Type_Of_Object): An object declaration may be given with an access
definition.
(Complete_Subprograms_Derivation): New subprogram used to complete
type derivation of private tagged types implementing interfaces.
In this case some interface primitives may have been overriden
with the partial-view and, instead of re-calculating them, they
are included in the list of primitive operations of the full-view.
(Build_Derived_Record_Type): Modified to give support to private
types implemening interfaces.
(Access_Definition): Reject ALL on anonymous access types.
(Build_Derived_Record_Type): In the case of Ada 2005, allow a tagged
type derivation to occur at a deeper accessibility level than the
parent type.
For the case of derivation within a generic body however, disallow the
derivation if the derived type has an ancestor that is a formal type
declared in the formal part of an enclosing generic.
(Analyze_Object_Declaration): For protected objects, remove the check
that they cannot contain interrupt handlers if not declared at library
level.
(Add_Interface_Tag_Components): New subprogram to add the tag components
corresponding to all the abstract interface types implemented by a
record type or a derived record type.
(Analyze_Private_Extension_Declaration, Build_Derived_Record_Type,
Derived_Type_Declaration, Find_Type_Name, Inherit_Components,
Process_Full_View, Record_Type_Declaration): Modified to give
support to abstract interface types
(Collect_Interfaces): New subprogram that collects the list of
interfaces that are not already implemented by the ancestors
(Process_Full_View): Set flag Has_Partial_Constrained_View appropriately
when partial view has no discriminants and full view has defaults.
(Constrain_Access): Reject a constraint on a general access type
if the discriminants of the designated type have defaults.
(Access_Subprogram_Declaration): Associate the Itype node with the inner
full-type declaration or subprogram spec. This is required to handle
nested anonymous declarations.
(Analyze_Private_Extension_Declaration, Build_Derived_Record_Type,
Derived_Type_Declaration, Find_Type_Name, Inherit_Components,
Process_Full_View, Record_Type_Declaration): Modified to give
support to abstract interface types
(Derive_Subprograms): Addition of a new formal to indicate if
we are in the case of an abstact-interface derivation
(Find_Type_Of_Subtype_Indic): Moved from the body of the package
to the specification because it is requied to analyze all the
identifiers found in a list of interfaces
* debug.adb: Complete documentation of flag "-gnatdZ"
* exp_ch3.adb: Implement config version of persistent_bss pragma
(Check_Stream_Attributes): Use Stream_Attribute_Available instead of
testing for TSS presence to properly enforce visibility rules.
(Freeze_Record_Type): Code cleanup. Modified to call the subprogram
Make_Abstract_Interfaces_DT to generate the secondary tables
associated with abstract interfaces.
(Build_Init_Procedure): Modified to initialize all the tags
corresponding.
(Component_Needs_Simple_Initialization): Similar to other tags,
interface tags do not need initialization.
(Freeze_Record_Type): Modified to give support to abstract interface
types.
(Expand_N_Object_Declaration): Do not generate an initialization for
a scalar temporary marked as internal.
* exp_ch6.adb (Add_Simple_Call_By_Copy_Code): Handle properly an
in-out parameter that is a component in an initialization procedure,
whose constraint might depend on discriminants, and that may be
misaligned because of packing or representation clauses.
(Is_Legal_Copy): New predicate to determine whether a possibly
misaligned in-out actual can actually be passed by copy/return. This
is an error in case the type is by_reference, and a warning if this is
the consequence of a DEC import pragma on the subprogram.
(Expand_Call, Freeze_Subprogram): Modified to give support to abstract
interface types
(Expand_Inlined_Call): Mark temporary generated for the return value as
internal, so that no useless scalar normalization is generated for it.
(Expand_N_Subprogram_Declaration): Save unanalyzed body so calls to
null procedure can always be inlined.
(Expand_N_Subprogram_Declaration): If this is the declaration of a null
procedure, generate an explicit empty body for it.
* exp_util.ads, exp_util.adb (Find_Interface_ADT): New subprogram.
Given a type implementing an interface, returns the corresponding
access_disp_table value.
(Find_Interface_Tag): New subprogram. Given a type implementing an
interface, returns the record component containing the tag of the
interface.
(Find_Interface_Tag): New overloaded subprogram. Subsidiary to the
previous ones that return the corresponding tag and access_disp_table
entities.
(Is_Predefined_Dispatching_Operation): Determines if a subprogram
is a predefined primitive operation.
(Expand_Subtype_From_Expr): If the expression is a selected component
within an initialization procedure, compute its actual subtype, because
the component may depend on the discriminants of the enclosing record.
* i-cpp.ads, i-cpp.adb:
This package has been left available for compatibility with previous
versions of the frontend. As part of the new layout this is now a
dummy package that uses declarations available at a-tags.ads
* par-ch3.adb (P_Identifier_Declarations): Give an error for use of
"constant access" and "aliased [constant] access" when not compiling
with -gnat05.
Suppress Ada 2005 keyword warning if -gnatwY used
(P_Identifier_Declarations): Add support for object declarations with
access definitions.
(Private_Extension_Declaration): Complete the documentation
(P_Derived_Type_Def_Or_Private_Ext_Decl): Fill the inteface_list
attribute in case of private extension declaration
(P_Type_Declaration): Mark as "abstract" the type declarations
corresponding with protected, synchronized and task interfaces
(P_Declarative_Items): "not" and "overriding" are overriding indicators
for a subprogram or instance declaration.
* sem_ch12.adb (Analyze_Subprogram_Instantiation): Verify that an
instantiation that is a dispatching operation has controlling access
parameters that are null excluding.
Save and restore Ada_Version_Explicit, for implementation of AI-362
(Validate_Derived_Type_Instance): Add check for abstract interface
types.
(Analyze_Formal_Package): Establish Instantiation source for the copy of
the generic that is created to represent the formal package.
(Analyze_Package_Instantiation): Instantiate body immediately if the
package is a predefined unit that contains inlined subprograms, and
we are compiling for a Configurable_Run_Time.
(Instantiate_Formal_Subprogram): Indicate that null default subprogram
If the program has a null default, generate an empty body for it.
* sem_ch6.adb, sem_ch9.adb (Analyze_Subprograms_Declaration): Update
error message condition, null procedures are correctly detected now.
(New_Overloaded_Entity): Bypass trivial overriding indicator check
for subprograms in the context of protected types. Instead, the
indicator is examined in Sem_Ch9 while analysing the subprogram
declaration.
(Check_Overriding_Indicator): Check consistency of overriding indicator
on subprogram stubs as well.
(Analyze_Subprogram_Declaration): Diagnose null procedures declared at
the library level.
(Analize_Subprogram_Specification): When analyzing a subprogram in which
the type of the first formal is a concurrent type, replace this type
by the corresponding record type.
(Analyze_Subprogram_Body): Undo the previous work.
(Analyze_Procedure_Call): If the call has the form Object.Op, the
analysis of the prefix ends up analyzing the call itself, after which
we are done.
(Has_Interface_Formals): New subprogram subsidiary to analyze
subprogram_specification that returns true if some non
class-wide interface subprogram is found
(New_Overloaded_Entity): Modified to give support to abstract
interface types
(Conforming_Types): In Ada 2005 mode, conformance checking of anonymous
access to subprograms must be recursive.
(Is_Unchecked_Conversion): Improve the test that recognizes
instantiations of Unchecked_Conversion, and allows them in bodies that
are to be inlined by the front-end. When the body comes from an
instantiation, a reference to Unchecked_Conversion will be an
Expanded_Name, even though the body has not been analyzed yet.
Replace Is_Overriding and Not_Overriding in subprogram_indication with
Must_Override and Must_Not_Override, to better express intent of AI.
(Analyze_Subprogram_Body): If an overriding indicator is given, check
that it is consistent with the overrinding status of the subprogram
at this point.
(Analyze_Subprogram_Declaration): Indicate that a null procedure is
always inlined.
If the subprogram is a null procedure, indicate that it does not need
a completion.
* sem_disp.adb (Check_Controlling_Type): Give support to entities
available through limited-with clauses.
(Check_Dispatching_Operation): A stub acts like a body, and therefore is
allowed as the last primitive of a tagged type if it has no previous
spec.
(Override_Dispatching_Operation, Check_Dispatching_Operation): Modified
to give support to abstract interface types
* sem_res.adb (Valid_Conversion): Perform an accessibility level check
in the case where the target type is an anonymous access type of an
object or component (that is, when Is_Local_Anonymous_Access is true).
Prevent the special checks for conversions of access discriminants in
the case where the discriminant belongs to a nonlimited type, since
such discriminants have their accessibility level defined in the same
way as a normal component of an anonymous access type.
(Resolve_Allocator): When an allocator's designated type is a class-wide
type, check that the accessibility level of type given in the
allocator's expression or subtype indication is not statically deeper
than the level of the allocator's access type.
(Check_Discriminant_Use): Diagnose discriminant given by an expanded
name in a discriminant constraint of a record component.
(Resolve_Explicit_Dereference): Do not check whether the type is
incomplete when the dereference is a use of an access discriminant in
an initialization procedure.
(Resolve_Type_Conversion): Handle conversions to abstract interface
types.
(Valid_Tagged_Conversion): The conversion of a tagged type to an
abstract interface type is always valid.
(Valid_Conversion): Modified to give support to abstract interface types
(Resolve_Actuals): Enable full error reporting on view conversions
between unrelated by_reference array types.
The rule for view conversions of arrays with aliased components is
weakened in Ada 2005.
Call to obsolescent subprogram is now considered to be a violation of
pragma Restrictions (No_Obsolescent_Features).
(Check_Direct_Boolean_Operator): If the boolean operation has been
constant-folded, there is nothing to check.
(Resolve_Comparison_Op, Resolve_Equality_Op, Resolve_Boolean_Op): Defer
check on possible violation of restriction No_Direct_Boolean_Operators
until after expansion of operands, to prevent spurious errors when
operation is constant-folded.
* sem_type.ads, sem_type.adb (Covers, Intersect_Types, Specific_Type,
Has_Compatible_Type): Modified to give support to abstract interface
types.
(Interface_Present_In_Ancestor): New function to theck if some ancestor
of a given type implements a given interface
* sem_ch4.adb (Analyze_Call): Handle properly an indirect call whose
prefix is a parameterless function that returns an access_to_procedure.
(Transform_Object_Operation): Handle properly function calls of the
form Obj.Op (X), which prior to analysis appear as indexed components.
(Analyze_One_Call): Complete the error notification to help new Ada
2005 users.
(Analyze_Allocator): For an allocator without an initial value, where
the designated type has a constrained partial view, a discriminant
constraint is illegal.
From-SVN: r101024
2005-06-14 Pascal Obry <obry@adacore.com>
* a-stzunb.adb, a-stwiun.adb, a-strunb.adb (Realloc_For_Chunk): New
implementation which is slightly more efficient.
From-SVN: r101023
2005-06-14 Robert Dewar <dewar@adacore.com>
* a-except.adb (Exception_Identity): return Null_Id for null occurrence
instead of raising CE (AI-241)
Add warnings off to allow categorization violations for AI-362
From-SVN: r101021
2005-06-14 Doug Rupp <rupp@adacore.com>
Pascal Obry <obry@adacore.com>
* adaint.c (__gnat_to_canonical_file_spec): Check for error returns in
call to decc$translate_vms.
(__gnat_locate_regular_file): Check if the path_val contains quotes. We
need to remove those quotes before catenating the filename.
(__gnat_locate_exec_on_path): improvements to the Win32 section:
* avoid allocating the memory twice for better efficiency;
* allocate 32K buffer for environment expansion as suggested by MSDN;
* prepend ".;" to the path so that current directory is searched too.
From-SVN: r101020
2005-06-14 Pascal Obry <obry@adacore.com>
* mlib-tgt-mingw.adb (Build_Dynamic_Library): Replace the previous
implementation. This new version generates the proper DllMain routine
to initialize the SAL. The DllMain is generated in Ada and compiled
before being added as option to the library build command.
From-SVN: r101019
2005-06-14 Vincent Celier <celier@adacore.com>
* gnatsym.adb: Adapt to modification of package Symbols: procedure
Process is now in package Processing.
* symbols.ads, symbols.adb:
(Processing): New package, containing procedure Process
* symbols-vms-alpha.adb:
Replaced by symbols-vms.adb and symbols-processing-vms-alpha.adb
* symbols-vms.adb, symbols-processing-vms-alpha.adb,
symbols-processing-vms-ia64.adb: New files.
From-SVN: r101018
2005-06-14 Robert Dewar <dewar@adacore.com>
* system-unixware.ads, system-linux-ia64.ads, system-freebsd-x86.ads,
system-lynxos-ppc.ads, system-lynxos-x86.ads, system-linux-x86_64.ads,
system-tru64.ads, system-aix.ads, system-vxworks-sparcv9.ads,
system-vxworks-xscale.ads, system-solaris-x86.ads, system-irix-o32.ads,
system-irix-n32.ads, system-hpux.ads, system-vxworks-m68k.ads,
system-linux-x86.ads, system-vxworks-mips.ads, system-vxworks-mips.ads,
system-os2.ads, system-interix.ads, system-solaris-sparc.ads,
system-solaris-sparcv9.ads, system-vms.ads, system-mingw.ads,
system-vms-zcx.ads, system-vxworks-ppc.ads, system.ads,
system-darwin-ppc.ads, system-vxworks-x86.ads, system-linux-ppc.ads,
system-linux-hppa.ads, system-vms_64.ads,
system-vxworks-alpha.ads: Minor comment update for
AI-362 (unit is Pure).
* a-chahan.ads, a-chahan.adb: Move Wide_Wide functions to Conversions
Add pragma Pure_05 for AI-362
Make remaining conversion functions obsolescent in Ada 95
* impunit.adb: Change a-swunha to a-swuwha and a-szunha to a-szuzha
Make Ada.Wide_Characters[.Unicode] available in Ada 95 mode
Add entries for a-wichun and a-zchuni
Add a-widcha a-zchara for AI-395
Add a-chacon (Ada.Characters.Conversions) to list of Ada 2005 routines
* Makefile.rtl: Change a-swunha to a-swuwha and a-szunha to a-szuzha
Add entries for a-wichun.o and a-zchuni.o
Entries for a-widcha.o and a-zchara.o
Add entry for a-chacon.o
* a-ztenau.adb: Add with of Ada.Characters.Conversions
* a-chacon.ads, a-chacon.adb: New files.
* a-taside.adb, a-exstat.adb, a-excach.adb: Add warnings off to allow
categorization violations.
* a-strmap.ads: Add pragma Pure_05 for AI-362
* a-strmap.ads: Add note on implicit categorization for AI-362
* a-tgdico.ads, a-taside.ads: Add pragma Preelaborate_05 for AI-362
* par-prag.adb: Dummy entry for pragma Persistent_BSS
Set Ada_Version_Explicit, for implementation of AI-362
Add processing for pragma Pure_05 and Preelaborate_05
Add entry for Assertion_Policy pragma
* sem.adb: Make sure predefined units are compiled with GNAT_Mode true
when needed for proper processing of categorization stuff
* sem_cat.adb:
For several cases, make errors in preealborate units warnings,
instead of errors, if GNAT_Mode is set. For AI-362.
* sem_elab.adb (Check_Elab_Call): Call to non-static subprogram in
preelaborate unit is now warning if in GNAT mode
* s-stoele.ads: Document AI-362 for pragma preelaborate
From-SVN: r101016
2005-06-14 Jose Ruiz <ruiz@adacore.com>
Arnaud Charlet <charlet@adacore.com>
* a-sytaco.ads, a-sytaco.adb (Suspension_Object): These objects are no
longer protected objects. They have been replaced by lower-level
suspension objects made up by a mutex and a condition variable (or
their equivalent given a particular OS) plus some internal data to
reflect the state of the suspension object.
(Initialize, Finalize): Add this initialization procedure for
Suspension_Object, which is a controlled type.
(Finalize): Add the finalization procedure for Suspension_Object,
which is a controlled type.
* a-sytaco-vxworks.ads, a-sytaco-vxworks.adb: Remove this version of
Ada.Synchronous_Task_Control because there is no longer a need for a
VxWorks specific version of this package. Target dependencies
has been moved to System.Task_Primitives.Operations.
* s-osinte-mingw.ads (pCRITICAL_SECTION): Remove this type which is no
longer needed.
(InitializeCriticalSection, EnterCriticalSection,
LeaveCriticalSection, DeleteCriticalSection): Replace the type
pCriticalSection by an anonymous access type so that we avoid problems
of accessibility to local objects.
* s-taprop.ads, s-taprop-posix.adb, s-taprop-vxworks.adb,
s-taprop-mingw.adb, s-taprop-vms.adb, s-taprop-solaris.adb,
s-taprop-os2.adb, s-taprop-dummy.adb, s-taprop-hpux-dce.adb,
s-taprop-linux.adb, s-taprop-irix.adb, s-taprop-irix-athread.adb,
s-taprop-tru64.adb, s-taprop-lynxos.adb (Elaboration Code): No longer
set the environment task mask here.
(Current_State): Add this function that returns the state of the
suspension object.
(Set_False): Add this procedure that sets the state of the suspension
object to False.
(Set_True): Add this procedure that sets the state of the suspension
object to True, releasing the task that was suspended, if any.
(Suspend_Until_True): Add this procedure that blocks the calling task
until the state of the object is True. Program_Error is raised if
another task is already waiting on that suspension object.
(Initialize): Add this procedure for initializing the suspension
object. It initializes the mutex and the condition variable which are
used for synchronization and queuing, and it sets the internal state
to False.
(Finalize): Add this procedure for finalizing the suspension object,
destroying the mutex and the condition variable.
* s-taspri-posix.ads, s-taspri-vxworks.ads, s-taspri-mingw.ads,
s-taspri-vms.ads, s-taspri-solaris.ads, s-taspri-os2.ads,
s-taspri-dummy.ads, s-taspri-hpux-dce.ads, s-taspri-linux.ads,
s-taspri-tru64.ads, s-taspri-lynxos.ads (Suspension_Object): New object
which provides a low-level abstraction (using operating system
primitives) for Ada.Synchronous_Task_Control.
This object is made up by a mutex (for ensuring mutual exclusion), a
condition variable (for queuing threads until the condition is
signaled), a Boolean (State) indicating whether the object is open,
and a Boolean (Waiting) reflecting whether there is a task already
suspended on this object.
* s-intman.ads, s-intman-irix.adb, s-intman-irix-athread.adb,
s-intman-dummy.adb, s-intman-solaris.adb, s-intman-vms.adb,
s-intman-vms.ads, s-intman-mingw.adb,
(Initialize_Interrupts): Removed, no longer used.
* s-inmaop-posix.adb, s-inmaop-vms.adb, s-inmaop-dummy.adb,
(Setup_Interrupt_Mask): New procedure.
* s-intman-vxworks.ads, s-intman-vxworks.adb: Update comments.
* s-inmaop.ads (Setup_Interrupt_Mask): New procedure
* s-interr.adb: Add explicit call to Setup_Interrupt_Mask now that
this is no longer done in the body of s-taprop
(Server_Task): Explicitely test for Pending_Action in case
System.Parameters.No_Abort is True.
* s-taasde.adb: Add explicit call to Setup_Interrupt_Mask now that this
is no longer done in the body of s-taprop
From-SVN: r101015
2005-06-14 Olivier Hainque <hainque@adacore.com>
Eric Botcazou <ebotcazou@adacore.com>
* s-mastop-irix.adb (Pop_Frame): Revert shorcuts avoiding calls to
exc_unwind, now that we are generating proper .debug_frame output for
that target.
* tracebak.c: Remove the mips-irix section, as we are now using the
s-mastop based unwinder again.
Under SPARC/Solaris, take into account the stack bias to compute the
frame offset. The stack bias is 0 for the V8 ABI and 2047 for the V9
ABI.
From-SVN: r101012
cp:
* rtti.c (get_tinfo_decl): Avoid caching tinfo_descs when it might
change.
(create_pseudo_type_info): First parameter is an int.
testsuite:
* g++.dg/rtti/crash2.C: New.
From-SVN: r101011
2005-06-15 Andrew Pinski <pinskia@physics.uc.edu>
PR tree-opt/21923
* tree-ssa.c (tree_ssa_useless_type_conversion_1): Conversions between
integer types whos ranges are different are not useless.
From-SVN: r100996
2005-06-15 Andrew Pinski <pinskia@physics.uc.edu>
PR tree-opt/22024
* tree-ssa-reassoc.c (init_reassoc): Also give chain decl a distint
rank.
From-SVN: r100993
2005-06-15 Frank Ch. Eigler <fche@redhat.com>
Fix for uncaching bug reported by Herman ten Brugge.
* mf-runtime.c (__mf_uncache_object): Search whole cache.
* testsuite/libmudflap.c/fail40-frag.c: New test.
From-SVN: r100985
* c-tree.h (default_function_array_conversion): Declare.
* c-typeck.c (default_function_array_conversion): Export. Correct
comment.
(default_conversion): Do not call
default_function_array_conversion. Do not allow FUNCTION_TYPE.
(build_function_call): Call default_function_array_conversion on
the function.
(convert_arguments): Do not call it on the function arguments.
(build_unary_op): Do not allow ARRAY_TYPE or FUNCTION_TYPE for
TRUTH_NOT_EXPR. Call default_function_array_conversion for taking
address of ARRAY_REF.
(build_compound_expr): Do not call
default_function_array_conversion.
(build_c_cast): Do not call default_function_array_conversion.
(convert_for_assignment): Do not call default_conversion.
(digest_init): Call default_function_array_conversion to convert
string constants and compound literals to pointers, but not
otherwise.
(output_init_element): Likewise.
(build_asm_expr): Do not call default_function_array_conversion.
(c_process_expr_stmt): Likewise.
(c_objc_common_truthvalue_conversion): Likewise. Do not allow
FUNCTION_TYPE.
* c-parser.c (c_parser_expression_conv): New.
(c_parser_asm_operands, c_parser_expr_list): Add convert_p
argument. All callers changed. Call
default_function_array_conversion if convert_p.
(c_parser_initializer, c_parser_initval): Call
default_function_array_conversion except for string constants and
compound literals.
(c_parser_initelt): Call default_function_array_conversion for
ObjC expression received.
(c_parser_statement_after_labels): Call c_parser_expression_conv
for return and expression statements.
(c_parser_paren_condition, c_parser_for_statement,
c_parser_conditional_expression): Call c_parser_expression_conv.
(c_parser_expr_no_commas, c_parser_conditional_expression,
c_parser_binary_expression, c_parser_cast_expression,
c_parser_unary_expression): Call
default_function_array_conversion.
objc:
* objc-act.c (my_build_string_pointer): New.
(objc_get_class_reference, get_super_receiver): Call
my_build_string_pointer instead of my_build_string when building
function arguments.
testsuite:
* gcc.dg/noncompile/20040203-3.c: Update expected message.
From-SVN: r100984
* config/mips/mips.h (GENERATE_MIPS16E): New definition.
* config/mips/mips.md (zero_extend<SHORT:mode><GPR:mode>2):
Changed expand condition to exclude generating of "and" if
GENERATE_MIPS16E is true.
(*zero_extend<SHORT:mode><GPR:mode>2_mips16e): New pattern for
matching mips16e zeb/zeh.
(*extend<SHORT:mode><GPR:mode>2_mips16e): New pattern for matching
mips16e seb/seh.
(*extend<SHORT:mode><GPR:mode>2): Disable this pattern for
GENERATE_MIPS16E.
* doc/invoke.texi (MIPS Options): Add comment to -mips16
indicating MIPS16e ASE is used if targetting for MIPS32 or MIPS64.
From-SVN: r100979
* Makefile.in (local-alloc.o): Depend on $(GGC_H) and reload.h.
* local-alloc.c: Include "ggc.h" and "reload.h".
(struct equivalence): New member is_arg_equivalence.
(local_alloc): Always call update_equiv_regs.
(update_equiv_regs): Allocate reg_equiv_init; set reg_equiv_init_size.
Detect equivalences made by stores to memory in a second pass.
Return early if not optimizing.
Initialize reg_equiv_init for all equivalences; treat equivalences for
REG_EQUIV notes existing before this pass specially.
(no_equiv): Don't clear reg_equiv_init or remove notes if the
is_arg_equivalence field is set.
* reload.h (reg_equiv_init, reg_equiv_init_size): Declare.
* reload1.c (reg_equiv_init): No longer static.
(reg_equiv_init_size): New variable.
(reload): Don't allocate reg_equiv_init; don't free it when done but
clear it.
Restructure equivalence set up code not to set reg_equiv_init, but to
clear it when we can't use an equivalence.
Undo change disabling equivalences for MEM_READONLY_P memrefs.
Dump equivalencing insns to dump_file.
From-SVN: r100975
Robert Dewar
Thomas Quinot
Nicolas Setton
Ed Schonberg
Vincent Celier
Gary Dismukes
Pascal Obry
Doug Rupp
Jose Ruiz
Olivier Hainque
Nathan Sidwell
Kelley Cook
GCC Administrator
Jan Hubicka
Tom Tromey
James A. Morrison
Andreas Tobler
Andrew Pinski
Goffredo Baroncelli
Paolo Carlini
Diego Novillo
Frank Ch. Eigler
Joseph Myers
David Ung
Richard Sandiford
Aldy Hernandez
Bernd Schmidt