[multiple changes]

2004-03-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* trans.c: Reflect GCC changes to fix bootstrap problem.
	Add warning for suspicious aliasing unchecked conversion.

2004-03-05  Robert Dewar  <dewar@gnat.com>

	* 56taprop.adb, 5ataprop.adb: Remove unneeded unchecked conversions

	* a-tags.adb, a-tags.ads, s-finimp.adb, s-finroo.ads,
	i-cpoint.ads, i-cpoint.adb, i-cstrin.adb, i-cstrin.ads,
	5iosinte.ads, 5sosinte.ads, 5staspri.ads, 5itaprop.adb,
	5staprop.adb, 5wtaprop.adb, s-tataat.ads, s-tataat.adb: Move
	unchecked conversion to spec to avoid warnings.

	* s-tasini.adb, s-taskin.ads, 5atpopsp.adb: Correct spelling Task_Id
	to Task_ID

	* 7stpopsp.adb: Correct casing in To_Task_ID call

	* a-strsea.ads, a-strsea.adb: Minor reformatting

	* einfo.ads, einfo.adb: Define new flag No_Strict_Aliasing

	* errout.ads: Switch for VMS is now NO_STRICT_ALIASING.
	Adjust Max_Msg_Length to be clearly large enough.

	* fe.h: Define In_Same_Source_Unit

	* osint.adb: Add pragma Warnings Off to suppress warnings
	* g-dyntab.adb, g-table.adb, g-thread.adb: Add Warnings (Off) to kill
	aliasing warnings.

	* opt.ads: Put entries in alpha order. Add entry for No_Strict_Aliasing

	* par-prag.adb: Add dummy entry for No_Strict_Aliasing pragma

	* sem_ch13.adb: Generate validate unchecked conversion nodes for gcc.

	* sem_ch3.adb: Set No_Strict_Aliasing flag if config pragma set.

	* sem_prag.adb: Implement pragma No_Strict_Aliasing.

	* sinfo.ads: Remove obsolete comment on validate unchecked conversion
	node. We now do generate them for gcc back end.

	* table.adb, sinput.adb: Add pragma Warnings Off to suppress aliasing
	warning.

	* sinput-c.adb: Fix bad name in header.
	Add pragma Warnings Off to suppress aliasing warning.

	* sinput-l.adb: Add pragma Warnings Off to suppress aliasing warning.

	* snames.h, snames.ads, snames.adb: Add entry for pragma
	No_Strict_Aliasing.

2004-03-05  Vincent Celier  <celier@gnat.com>

	* prj-com.ads: Add hash table Files_Htable to check when a file name
	is already a source of another project.

	* prj-nmsc.adb (Record_Source): Before recording a new source, check
	if its file name is not already a source of another project. Report an
	error if it is.

	* gnatcmd.adb: When GNAT PRETTY is invoked with a project file and no
	source file name, call gnatpp with all the sources of the main project.

	* vms_conv.adb (Initialize): GNAT PRETTY may be called with any number
	of file names.

	* vms_data.ads: Correct documentation of new /OPTIMIZE keyword
	NO_STRICT_ALIASING. Add new qualifier for GNAT PRETTY:
	/RUNTIME_SYSTEM=, converted to --RTS=
	/NOTABS, converted to -notabs

2004-03-05  Pascal Obry  <obry@gnat.com>

	* make.adb: Minor reformatting.

2004-03-05  Ed Schonberg  <schonberg@gnat.com>

	Part of implemention of AI-262.
	* par-ch10.adb (P_Context_Clause): Recognize private with_clauses.

	* sem_ch10.ads, sem_ch10.adb: (Install_Private_With_Clauses): New
	procedure.

	* sem_ch3.adb (Analyze_Component_Declaration): Improve error message
	when component type is a partially constrained class-wide subtype.
	(Constrain_Discriminated_Type): If parent type has unknown
	discriminants, a constraint is illegal, even if full view has
	discriminants.
	(Build_Derived_Record_Type): Inherit discriminants when deriving a type
	with unknown discriminants whose full view is a discriminated record.

	* sem_ch7.adb (Preserve_Full_Attributes): Preserve Has_Discriminants
	flag, to handle properly derivations of tagged types with unknown
	discriminants.
	(Analyze_Package_Spec, Analyze_Package_Body): Install
	Private_With_Clauses before analyzing private part or body.

	* einfo.ads: Indicate that both Has_Unknown_Discriminants and
	Has_Discriminants can be true for a given type (documentation).

2004-03-05  Arnaud Charlet  <charlet@act-europe.fr>

	* s-restri.ads: Fix license (GPL->GMGPL).

	* s-tassta.adb: Minor reformatting.

	* s-tasren.adb: Replace manual handling of Self_Id.ATC_Nesting_Level
	by calls to Exit_One_ATC_Level, since additional clean up is performed
	by this function.

	* s-tpobop.adb: Replace manual handling of Self_Id.ATC_Nesting_Level
	by calls to Exit_One_ATC_Level, since additional clean up is performed
	by this function.

2004-03-05  GNAT Script  <nobody@gnat.com>

	* Make-lang.in: Makefile automatically updated

From-SVN: r78964

1 files changed, 31 insertions, 2 deletions

diff --git a/gcc/ada/sem_prag.adb b/gcc/ada/sem_prag.adb
index acf7ae1..f0aad74 100644
--- a/gcc/ada/sem_prag.adb
+++ b/gcc/ada/sem_prag.adb
@@ -2333,7 +2333,6 @@ package body Sem_Prag is
                        and then Paren_Count (Arg_Parameter_Types) = 0
                      then
                         Ptype := First (Expressions (Arg_Parameter_Types));
-
                         while Present (Ptype) or else Present (Formal) loop
                            if No (Ptype)
                              or else No (Formal)
@@ -3431,7 +3430,6 @@ package body Sem_Prag is
          if not Is_Check_Name (Chars (Expression (Arg1))) then
             Error_Pragma_Arg
               ("argument of pragma% is not valid check name", Arg1);
-
          else
             C := Get_Check_Id (Chars (Expression (Arg1)));
          end if;
@@ -7484,6 +7482,36 @@ package body Sem_Prag is
             end if;
          end No_Return;
 
+         ------------------------
+         -- No_Strict_Aliasing --
+         ------------------------
+
+         when Pragma_No_Strict_Aliasing => No_Strict_Alias : declare
+            E_Id : Entity_Id;
+
+         begin
+            GNAT_Pragma;
+            Check_At_Most_N_Arguments (1);
+
+            if Arg_Count = 0 then
+               Check_Valid_Configuration_Pragma;
+               Opt.No_Strict_Aliasing := True;
+
+            else
+               Check_Optional_Identifier (Arg2, Name_Entity);
+               Check_Arg_Is_Local_Name (Arg1);
+               E_Id := Entity (Expression (Arg1));
+
+               if E_Id = Any_Type then
+                  return;
+               elsif No (E_Id) or else not Is_Access_Type (E_Id) then
+                  Error_Pragma_Arg ("pragma% requires access type", Arg1);
+               end if;
+
+               Set_No_Strict_Aliasing (Base_Type (E_Id));
+            end if;
+         end No_Strict_Alias;
+
          -----------------
          -- Obsolescent --
          -----------------
@@ -9899,6 +9927,7 @@ package body Sem_Prag is
       Pragma_Memory_Size                  => -1,
       Pragma_No_Return                    =>  0,
       Pragma_No_Run_Time                  => -1,
+      Pragma_No_Strict_Aliasing           => -1,
       Pragma_Normalize_Scalars            => -1,
       Pragma_Obsolescent                  =>  0,
       Pragma_Optimize                     => -1,