+2019-08-20 Gary Dismukes <dismukes@adacore.com>
+
+ * ali.adb, ali.ads, aspects.adb, checks.ads, checks.adb,
+ doc/gnat_rm/implementation_defined_pragmas.rst,
+ doc/gnat_ugn/building_executable_programs_with_gnat.rst,
+ einfo.ads, exp_aggr.adb, exp_ch11.adb, exp_ch3.ads, exp_ch4.adb,
+ exp_disp.adb, inline.adb, libgnat/a-locale.ads,
+ libgnat/s-soflin.ads, par_sco.adb, repinfo.adb, sem_ch5.adb,
+ sem_disp.adb, sem_elab.adb, sem_eval.adb, sem_spark.adb,
+ sem_spark.ads, sinfo.ads: Minor reformattings, typo fixes and
+ and rewordings.
+
+2019-08-20 Dmitriy Anisimkov <anisimko@adacore.com>
+
+ * adaint.c (__gnat_to_gm_time): On _WIN32, don't round time up
+ to even second.
+
+2019-08-20 Ed Schonberg <schonberg@adacore.com>
+
+ * sem_ch3.adb (Analyze_Object_Declaration): If actual type is
+ private and distinct from nominal type in declaration, propagate
+ flags Is_Constr_Subt_For_U_Nominal and _UN_Aliased to full view
+ of private type.
+
+2019-08-20 Ed Schonberg <schonberg@adacore.com>
+
+ * exp_attr.adb (Expand_Loop_Entry_Attribute): When expanding a
+ loop entry attribute for a while_loop we construct a function
+ that incorporates the expanded condition of the loop. The itypes
+ that may be generated in that expansion must carry the scope of
+ the constructed function for proper handling in gigi.
+
+2019-08-20 Ed Schonberg <schonberg@adacore.com>
+
+ * exp_disp.adb (Build_Class_Wide_Check, Replace_Formals): When a
+ dispatching call tp a subprogram with a class-wide precondition
+ occurrs in the same declarative part as the ancestor subprogram
+ being called, the`expression for the precondition has not been
+ analyzed yet. Such a call may appear, e.g. in an expression
+ function. In that case, the replacement of formals by actuals in
+ the call cannot use the formal entities of the subprogram being
+ called, and the occurrence of the formals in the expression must
+ be located by name (Chars fields) as would be done at a later
+ freeze point, when the expression is resolved in the context of
+ the subprogram itself.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * sem_prag.adb (Persistent_BSS): If an initialization is present
+ because of Initialize_Scalars or Normalize_Scalars, generate an
+ implicit pragma Suppress_Initialization to remove that, because
+ initialization is not allowed for these variables. Other
+ initializations remain illegal.
+
+2019-08-20 Gary Dismukes <dismukes@adacore.com>
+
+ * sem_ch3.adb (OK_For_Limited_Init_In_05): In the case of type
+ conversions, apply the recursive call to the Original_Node of
+ the expression Exp rather than the Expression of the
+ Original_Node, in the case where Exp has been rewritten;
+ otherwise, when Original_Node is the same as Exp, apply the
+ recursive call to the Expression.
+ (Check_Initialization): Revise condition for special check on
+ type conversions of limited function calls to test Original_Node
+ (avoiding spurious errors on expanded unchecked conversions
+ applied to build-in-place dispatching calls).
+
+2019-08-20 Patrick Bernardi <bernardi@adacore.com>
+
+ * exp_aggr.adb (Expand_Record_Aggregate): Always convert a
+ record Aggregate to assignment statements if the option
+ Aggregate_Individually_Assign is set.
+ * opt.ads (Aggregate_Individually_Assign): New option.
+ * par-prag.adb (Prag): Add Pragma_Aggregate_Individually_Assign.
+ * sem_prag.adb (Analyze_Pragma): Likewise.
+ * snames.ads-tmpl: Add Pragma_Aggregate_Individually_Assign and
+ Name_Aggregate_Individually_Assign.
+ * doc/gnat_rm/implementation_defined_pragmas.rst: Document
+ pragma Aggregate_Individually_Assign.
+ * gnat_rm.texi: Regenerate.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * par-ch4.adb: Minor wording change in error messages.
+ * sem_aggr.adb (Resolve_Delta_Aggregate): Emit an error for Ada
+ versions prior to Ada 2020.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * freeze.adb (Is_Atomic_VFA_Aggregate): Make the temp for
+ initialization of the atomic variable be constant. This is
+ cleaner, and might improve efficiency.
+
+2019-08-20 Eric Botcazou <ebotcazou@adacore.com>
+
+ * repinfo.adb (List_Record_Info): In -gnatR4 mode, set the
+ relevant flag on the implicit base type of a record subtype.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * sem_eval.adb (Expr_Value): Implement the case of an unchecked
+ conversion of a static expression.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * sem_ch13.adb (Is_Null_Array): New function, used to detect the
+ null array case; used to warn about uncheckedly converting to a
+ zero-sized array. It is unfortunate that we can't just check
+ the size, and warn on all cases of converting from a
+ nonzero-sized type to a zero-sized one. That's because "0" means
+ two different things: "size is zero" and "size is unknown".
+ Until we fix that design flaw, we need this more targeted fix.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * libgnat/a-cborma.adb, libgnat/a-cborse.adb (Clear): Repeatedly
+ call Delete. This avoids clearing the free list, which
+ substantially speeds up future Delete operations.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * sem_ch13.adb (Component_Order_Check): New procedure to check
+ for out-of-order clauses.
+ * warnsw.ads, warnsw.adb: New -gnatw_r switch.
+ * doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+ Document new switch.
+ * gnat_ugn.texi: Regenerate.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * sem_ch13.adb (Object_Size): Give an error for zero. It really
+ rubs me the wrong way that we don't honor "for T'Object_Size use
+ 0;", but it's not important enough to fix. In any case, if we're
+ not going to obey the clause, we should give an error.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * errout.adb (Error_Msg_Internal): Set Warn_Err in case of
+ Is_Style_Msg.
+ * erroutc.adb (Output_Msg_Text): Do Warnings_Treated_As_Errors
+ processing and [warning-as-error] modification for style
+ messages. Clean up code, simplify, remove unnecessary block
+ statement, add renaming of table entry.
+ * erroutc.ads (Warning_Treated_As_Error): Fix comment: no such
+ thing as Set_Warning_As_Error.
+ * opt.ads: Clean up comments and move related declarations near
+ each other.
+ * par-prag.adb: Process Warning_As_Error. This is necessary
+ because many style warning happen during parsing.
+ * sem_prag.adb: Use new Acquire_Warning_Match_String.
+ * sem_util.ads, sem_util.adb (Acquire_Warning_Match_String): New
+ function shared by par-prag.adb and sem_prag.adb. Replaces the
+ procedure in sem_prag.adb. Avoid use of global variables.
+ * stringt.ads, stringt.adb (To_String): New function to convert
+ String_Id to String.
+ * doc/gnat_rm/implementation_defined_pragmas.rst: Document the
+ new feature.
+ * gnat_rm.texi: Regenerate.
+
+2019-08-20 Eric Botcazou <ebotcazou@adacore.com>
+
+ * lib.ads: Add with clause for GNAT.HTable.
+ Add pragma Inline for Is_Loaded and alphabetize the list.
+ (Unit_Name_Table_Size): New constant.
+ (Unit_Name_Header_Num): New subtype.
+ (Unit_Name_Hash): New function declaration.
+ (Unit_Names): New simple hash table.
+ (Init_Unit_Name): New procedure declaration.
+ * lib.adb (Set_Unit_Name): Unregister the old name in the table,
+ if any, and then register the new name.
+ (Init_Unit_Name): New procedure.
+ (Is_Loaded): Reimplement using a lookup in the names table.
+ (Remove_Unit): Unregister the name.
+ (Unit_Name_Hash): New function.
+ * lib-load.adb (Create_Dummy_Package_Unit): Call Init_Unit_Name.
+ (Load_Unit): Use a lookup in the names table to find out whether
+ the unit has already been loaded. Call Init_Unit_Name and then
+ Remove_Unit if the loading has failed.
+ (Make_Child_Decl_Unit): Call Init_Unit_Name.
+ (Make_Instance_Unit): Likewise.
+ * lib-writ.adb (Ensure_System_Dependency): Likewise.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * sem_ch13.adb (Record_Hole_Check): Initialize After_Last.
+
+2019-08-20 Piotr Trojanek <trojanek@adacore.com>
+
+ * impunit.adb (Get_Kind_Of_Unit): Revert change for adapting
+ this routine for gnatprove.
+
+2019-08-20 Arnaud Charlet <charlet@adacore.com>
+
+ * doc/gnat_rm/implementation_defined_pragmas.rst: Document
+ requirements for Pragma Lock_Free.
+ * gnat_rm.texi: Regenerate.
+
+2019-08-20 Philippe Gil <gil@adacore.com>
+
+ * bindgen.adb (Gen_Main): Set gnat_argc/gnat_argv to argc/argv
+ only when still uninitialized.
+
+2019-08-20 Bob Duff <duff@adacore.com>
+
+ * libgnat/g-comlin.ads (Exit_From_Command_Line): Fix
+ documentation for GNAT.Command_Line.
+
+2019-08-20 Pierre-Marie de Rodat <derodat@adacore.com>
+
+ PR ada/91492
+ * gcc-interface/lang.opt (-fdump-scos): Add missing dot at the
+ end of the documentation.
+
+2019-08-20 Richard Sandiford <richard.sandiford@arm.com>
+
+ * gcc-interface/misc.c (default_pass_by_ref): Update call to
+ pass_by_reference.
+
+2019-08-19 Bob Duff <duff@adacore.com>
+
+ * doc/gnat_rm/implementation_advice.rst: Fix documentation for
+ stream oriented attributes.
+ * gnat_rm.texi: Regenerate.
+
+2019-08-19 Gary Dismukes <dismukes@adacore.com>
+
+ * einfo.ads (E_Function, E_Procedure): Update comments to
+ reflect that Renamed_Entity is also used for nongeneric
+ subprograms.
+
+2019-08-19 Eric Botcazou <ebotcazou@adacore.com>
+
+ * sem_prag.adb (Is_Before_First_Decl): Deal with rewritten
+ pragmas.
+
+2019-08-19 Bob Duff <duff@adacore.com>
+
+ * sem_warn.adb (Warn_On_Unreferenced_Entity): Suppress warning
+ on formal parameters of dispatching operations.
+
+2019-08-19 Ed Schonberg <schonberg@adacore.com>
+
+ * sem_res.adb (Resolve_Call): A call to an expression function
+ freezes when expander is active, unless the call appears within
+ the body of another expression function,
+
+2019-08-19 Dmitriy Anisimkov <anisimko@adacore.com>
+
+ * libgnat/s-os_lib.ads, libgnat/s-os_lib.adb (To_Ada, To_C): New
+ routines.
+
+2019-08-19 Bob Duff <duff@adacore.com>
+
+ * exp_attr.adb (Attribute_Valid): Correct the handling of
+ private types where the full type is modular. System.Address is
+ an example. Otherwise, we convert uncheckedly to a signed type,
+ so we get an incorrect range 0 .. -1, for which all values will
+ fail. The 'Valid attribute is illegal for such types, but we
+ generate such illegal attribute_references for 'Valid_Scalars,
+ and we generate 'Valid_Scalars when the -gnateV switch is used.
+ Rename Btyp --> PBtyp to avoid hiding the outer Btyp, which was
+ confusing.
+ * libgnat/a-except.adb: Set the Exception_Raised component.
+ Otherwise, we have incorrect reads of invalid data.
+
+2019-08-19 Pierre-Marie de Rodat <derodat@adacore.com>
+
+ * libgnat/a-cgaaso.ads, libgnat/a-cgarso.ads,
+ libgnat/a-cogeso.ads, libgnat/a-contai.ads,
+ libgnat/a-locale.ads: Import documentation from the RM.
+
+2019-08-19 Jerome Guitton <guitton@adacore.com>
+
+ * Makefile.rtl (system.o): New target to add generation of
+ target properties.
+ * gcc-interface/Makefile.in (install-gnatlib): Install
+ ada_target_properties.
+
+2019-08-19 Eric Botcazou <ebotcazou@adacore.com>
+
+ * inline.adb (Add_Inlined_Body): Do not special-case instances
+ that are compilation units.
+ (Add_Pending_Instantiation): Likewise.
+ (Instantiate_Body): Skip instantiations that are compilation
+ units and have already been performed.
+ * sem_ch12.adb (Needs_Body_Instantiated): Do not special-case
+ instances that are compilation units.
+ (Load_Parent_Of_Generic): Be prepared for parent that is a
+ compilation unit but whose instantiation node has not been
+ replaced.
+
+2019-08-19 Eric Botcazou <ebotcazou@adacore.com>
+
+ * inline.adb (Initialize, Lock): Deal with
+ Called_Pending_Instantiations.
+
+2019-08-19 Ed Schonberg <schonberg@adacore.com>
+
+ * sem_ch6.adb (Check_Synchronized_Overriding): Complete
+ predicate that applies legality check in 9.4 (11.9/2): if an
+ inherited subprogram is implemented by a protected procedure or
+ entry, its first paarameter must be out, in_out or
+ access_to_varible.
+
+2019-08-19 Javier Miranda <miranda@adacore.com>
+
+ PR ada/65696
+ * exp_atag.ads, exp_atag.adb (Build_Inherit_Predefined_Prims):
+ Adding formal to specify how many predefined primitives are
+ inherited from the parent type.
+ * exp_disp.adb (Number_Of_Predefined_Prims): New subprogram.
+ (Make_Secondary_DT): Compute the number of predefined primitives
+ of all tagged types (including tagged types not defined at
+ library level). Previously we unconditionally relied on the
+ Max_Predef_Prims constant value when building the dispatch
+ tables of tagged types not defined at library level (thus
+ consuming more memory for their dispatch tables than required).
+ (Make_DT): Compute the number of predefined primitives that must
+ be inherited from their parent type when building the dispatch
+ tables of tagged types not defined at library level. Previously
+ we unconditionally relied on the Max_Predef_Prims constant value
+ when building the dispatch tables of tagged types not defined at
+ library level (thus copying more data than required from the
+ parent type).
+
+2019-08-19 Bob Duff <duff@adacore.com>
+
+ * sem_ch13.adb (Record_Hole_Check): Procedure to check for holes
+ that incudes processing type extensions. A type extension is
+ processed by first calling Record_Hole_Check recursively on the
+ parent type to compute the bit number after the last component
+ of the parent.
+
+2019-08-19 Gary Dismukes <dismukes@adacore.com>
+
+ * checks.adb (Length_Mismatch_Info_Message): New function in
+ Selected_Length_Checks to return a message indicating the
+ element counts for the mismatched lengths for a failed
+ compile-time length check.
+ (Plural_Or_Singular_Ending): Support function in
+ Length_Mismatch_Info_Message to return either "" or "s", for
+ concatenating to the end of words.
+ (Selected_Length_Checks): Pass the result of
+ Length_Mismatch_Info_Message as an extra warning message to
+ Compile_Time_Constraint_Error to indicate the mismatched lengths
+ for a failed compile-time length check.
+ * sem_util.ads (Compile_Time_Constraint_Error): Add an optional
+ message formal (Extra_Msg), defaulted to the empty string.
+ * sem_util.adb (Compile_Time_Constraint_Error): Output an extra
+ message following the main warning message (when Extra_Msg is
+ not the empty string).
+
+2019-08-19 Patrick Bernardi <bernardi@adacore.com>
+
+ * socket.c: Removed the redefinition of getaddrinfo, getnameinfo
+ and freeaddrinfo to internal VxWorks kernel calls because they
+ are, well, internal kernel calls and cannot be called from RTPs.
+ VxWorks provides the necessary components to call these routines
+ directly.
+
+2019-08-19 Eric Botcazou <ebotcazou@adacore.com>
+
+ * exp_dist.adb (Is_Generic_Actual_Subtype): New predicate.
+ (Build_From_Any_Call, Build_To_Any_Call, Build_TypeCode_Call):
+ Use it instead of Is_Generic_Actual_Type flag to detect subtypes
+ representing generic actual types.
+
2019-08-19 Ed Schonberg <schonberg@adacore.com>
* sem_warn.adb (Check_References, Generic_Body_Formal): When a
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