* 41intnam.ads, 42intnam.ads, 4aintnam.ads, 4cintnam.ads,

	4dintnam.ads, 4gintnam.ads, 4hintnam.ads, 4lintnam.ads,
	4mintnam.ads, 4pintnam.ads, 4rintnam.ads, 4sintnam.ads,
	4uintnam.ads, 4vcalend.adb, 4zintnam.ads, 52system.ads,
	5amastop.adb, 5asystem.ads, 5ataprop.adb, 5atpopsp.adb,
	5avxwork.ads, 5bosinte.adb, 5bsystem.ads, 5esystem.ads,
	5fsystem.ads, 5ftaprop.adb, 5ginterr.adb, 5gmastop.adb,
	5gsystem.ads, 5gtaprop.adb, 5gtasinf.adb, 5gtasinf.ads,
	5hparame.ads, 5hsystem.ads, 5htaprop.adb, 5htraceb.adb,
	5itaprop.adb, 5ksystem.ads, 5kvxwork.ads, 5lintman.adb,
	5lsystem.ads, 5mvxwork.ads, 5ninmaop.adb, 5nosinte.ads,
	5ntaprop.adb, 5ointerr.adb, 5omastop.adb, 5oosinte.adb,
	5osystem.ads, 5otaprop.adb, 5otaspri.ads, 5pvxwork.ads,
	5qtaprop.adb, 5sintman.adb, 5ssystem.ads, 5staprop.adb,
	5stpopse.adb, 5svxwork.ads, 5tosinte.ads, 5uintman.adb,
	5vasthan.adb, 5vinmaop.adb, 5vinterr.adb, 5vintman.adb,
	5vmastop.adb, 5vparame.ads, 5vsystem.ads, 5vtaprop.adb,
	5vtpopde.adb, 5wmemory.adb, 5wsystem.ads, 5wtaprop.adb,
	5ysystem.ads, 5zinterr.adb, 5zintman.adb, 5zosinte.adb,
	5zosinte.ads, 5zsystem.ads, 5ztaprop.adb, 6vcpp.adb, 6vcstrea.adb,
	7sintman.adb, 7staprop.adb, 7stpopsp.adb, 9drpc.adb,
	Make-lang.in, Makefile.in, a-caldel.adb, a-comlin.ads,
	a-dynpri.adb, a-except.adb, a-except.ads, a-finali.adb,
	a-ncelfu.ads, a-reatim.adb, a-retide.adb, a-stream.ads,
	a-ststio.adb, a-ststio.ads, a-stwifi.adb, a-tags.adb, a-tasatt.adb,
	a-textio.adb, a-tideau.adb, a-tiflau.adb, a-tigeau.adb,
	a-tigeau.ads, a-tiinau.adb, a-timoau.adb, a-witeio.adb,
	a-wtdeau.adb, a-wtenau.adb, a-wtflau.adb, a-wtgeau.adb,
	a-wtgeau.ads, a-wtinau.adb, a-wtmoau.adb, ada-tree.def, ada-tree.h,
	adaint.c, adaint.h, ali-util.adb, ali.adb, ali.ads, atree.adb,
	atree.ads, atree.h, back_end.adb, bcheck.adb, bindgen.adb,
	bindusg.adb, checks.adb, comperr.adb, config-lang.in, csets.adb,
	csets.ads, cstand.adb, cstreams.c, debug.adb, debug.ads, decl.c,
	einfo.adb, einfo.ads, einfo.h, elists.h, errout.adb, errout.ads,
	eval_fat.adb, exp_aggr.adb, exp_attr.adb, exp_ch11.adb,
	exp_ch12.adb, exp_ch13.adb, exp_ch2.adb, exp_ch3.adb, exp_ch3.ads,
	exp_ch4.adb, exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch7.ads,
	exp_ch9.adb, exp_ch9.ads, exp_dbug.adb, exp_dbug.ads, exp_disp.ads,
	exp_dist.adb, exp_fixd.adb, exp_intr.adb, exp_pakd.adb,
	exp_prag.adb, exp_strm.adb, exp_util.adb, exp_util.ads,
	expander.adb, expect.c, fe.h, fmap.adb, fmap.ads, fname-uf.adb,
	freeze.adb, frontend.adb, g-awk.adb, g-cgideb.adb, g-comlin.adb,
	g-comlin.ads, g-debpoo.adb, g-dirope.adb, g-dirope.ads,
	g-dyntab.adb, g-expect.adb, g-expect.ads, g-io.ads, g-io_aux.adb,
	g-io_aux.ads, g-locfil.adb, g-locfil.ads, g-os_lib.adb,
	g-os_lib.ads, g-regexp.adb, g-regpat.adb, g-socket.adb,
	g-socket.ads, g-spipat.adb, g-table.adb, g-trasym.adb,
	g-trasym.ads, gigi.h, gmem.c, gnat1drv.adb, gnatbind.adb, gnatbl.c,
	gnatchop.adb, gnatcmd.adb, gnatdll.adb, gnatfind.adb, gnatlbr.adb,
	gnatlink.adb, gnatls.adb, gnatmem.adb, gnatprep.adb, gnatvsn.ads,
	gnatxref.adb, hlo.adb, hostparm.ads, i-cobol.adb, i-cpp.adb,
	i-cstrea.ads, i-cstrin.adb, i-pacdec.adb, i-vxwork.ads,
	impunit.adb, init.c, inline.adb, io-aux.c, layout.adb, lib-load.adb,
	lib-util.adb, lib-writ.adb, lib-writ.ads, lib-xref.adb,
	lib-xref.ads, lib.adb, lib.ads, make.adb, makeusg.adb, mdll.adb,
	memroot.adb, misc.c, mlib-tgt.adb, mlib-utl.adb, mlib-utl.ads,
	mlib.adb, namet.adb, namet.ads, namet.h, nlists.h, nmake.adb,
	nmake.ads, nmake.adt, opt.adb, opt.ads, osint.adb, osint.ads,
	output.adb, output.ads, par-ch2.adb, par-ch3.adb, par-ch5.adb,
	par-prag.adb, par-tchk.adb, par-util.adb, par.adb, prj-attr.adb,
	prj-dect.adb, prj-env.adb, prj-env.ads, prj-nmsc.adb, prj-part.adb,
	prj-proc.adb, prj-strt.adb, prj-tree.adb, prj-tree.ads, prj.adb,
	prj.ads, raise.c, raise.h, repinfo.adb, restrict.adb, restrict.ads,
	rident.ads, rtsfind.adb, rtsfind.ads, s-arit64.adb, s-asthan.adb,
	s-atacco.adb, s-atacco.ads, s-auxdec.adb, s-crc32.adb, s-crc32.ads,
	s-direio.adb, s-fatgen.adb, s-fileio.adb, s-finimp.adb,
	s-gloloc.adb, s-gloloc.ads, s-interr.adb, s-mastop.adb,
	s-mastop.ads, s-memory.adb, s-parame.ads, s-parint.adb,
	s-pooglo.adb, s-pooloc.adb, s-rpc.adb, s-secsta.adb, s-sequio.adb,
	s-shasto.adb, s-soflin.adb, s-soflin.ads, s-stache.adb,
	s-taasde.adb, s-taasde.ads, s-tadeca.adb, s-tadeca.ads,
	s-tadert.adb, s-tadert.ads, s-taenca.adb, s-taenca.ads,
	s-taprob.adb, s-taprop.ads, s-tarest.adb, s-tasdeb.adb,
	s-tasini.adb, s-tasini.ads, s-taskin.adb, s-taskin.ads,
	s-tasque.adb, s-tasque.ads, s-tasren.adb, s-tasren.ads,
	s-tassta.adb, s-tasuti.adb, s-tasuti.ads, s-tataat.adb,
	s-tataat.ads, s-tpoben.adb, s-tpoben.ads, s-tpobop.adb,
	s-tposen.adb, s-tposen.ads, s-traceb.adb, s-traceb.ads,
	s-unstyp.ads, s-widenu.adb, scn-nlit.adb, scn.adb, sem.adb,
	sem_aggr.adb, sem_attr.adb, sem_attr.ads, sem_case.adb,
	sem_ch10.adb, sem_ch11.adb, sem_ch11.ads, sem_ch12.adb,
	sem_ch13.adb, sem_ch13.ads, sem_ch2.adb, sem_ch3.adb, sem_ch3.ads,
	sem_ch4.adb, sem_ch5.adb, sem_ch6.adb, sem_ch6.ads, sem_ch7.adb,
	sem_ch8.adb, sem_ch8.ads, sem_ch9.adb, sem_disp.adb, sem_dist.adb,
	sem_elab.adb, sem_elim.adb, sem_elim.ads, sem_eval.adb,
	sem_intr.adb, sem_mech.adb, sem_prag.adb, sem_res.adb,
	sem_type.adb, sem_util.adb, sem_util.ads, sem_vfpt.adb,
	sem_warn.adb, sinfo.adb, sinfo.ads, sinfo.h, sinput-l.adb,
	sinput-l.ads, sinput.adb, sinput.ads, snames.adb, snames.ads,
	snames.h, sprint.adb, sprint.ads, stringt.adb, stringt.ads,
	stringt.h, style.adb, switch.adb, switch.ads, sysdep.c, system.ads,
	table.adb, targparm.adb, targparm.ads, targtyps.c, tbuild.adb,
	tbuild.ads, tracebak.c, trans.c, tree_gen.adb, tree_io.adb,
	treepr.adb, treepr.ads, treeprs.ads, treeprs.adt, ttypes.ads,
	types.adb, types.ads, types.h, uintp.ads, urealp.ads, usage.adb,
	utils.c, utils2.c, validsw.adb, xnmake.adb, xr_tabls.adb,
	xr_tabls.ads, xref_lib.adb, xref_lib.ads : Merge in ACT changes.

	* 1ssecsta.adb, 1ssecsta.ads, a-chlat9.ads, a-cwila9.ads,
	g-enblsp.adb, g-md5.adb, g-md5.ads, gnatname.adb, gnatname.ads,
	mkdir.c, osint-b.adb, osint-b.ads, osint-c.adb, osint-c.ads,
	osint-l.adb, osint-l.ads, osint-m.adb, osint-m.ads : New files

	* 3lsoccon.ads, 5qparame.ads, 5qvxwork.ads, 5smastop.adb,
	5zparame.ads, gnatmain.adb, gnatmain.ads, gnatpsys.adb : Removed

	* mdllfile.adb, mdllfile.ads, mdlltool.adb, mdlltool.ads : Renamed
	to mdll-fil.ad[bs] and mdll-util.ad[bs]

	* mdll-fil.adb, mdll-fil.ads, mdll-utl.adb, mdll-utl.ads : Renamed
	from mdllfile.ad[bs] and mdlltool.ad[bs]


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50451 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 62 insertions, 47 deletions

diff --git a/gcc/ada/exp_pakd.adb b/gcc/ada/exp_pakd.adb
index 5656569669c..511cd4c95a5 100644
--- a/gcc/ada/exp_pakd.adb
+++ b/gcc/ada/exp_pakd.adb
@@ -8,7 +8,7 @@
 --                                                                          --
 --                            $Revision$
 --                                                                          --
---          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
+--          Copyright (C) 1992-2002 Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -591,7 +591,7 @@ package body Exp_Pakd is
                  Right_Opnd =>
                    Convert_To (Standard_Integer,
                      Make_Attribute_Reference (Loc,
-                       Prefix => New_Occurrence_Of (Styp, Loc),
+                       Prefix         => New_Occurrence_Of (Styp, Loc),
                        Attribute_Name => Name_First)));
 
             --  For larger integer types, subtract first, then convert to
@@ -606,7 +606,7 @@ package body Exp_Pakd is
                      Left_Opnd => Newsub,
                    Right_Opnd =>
                      Make_Attribute_Reference (Loc,
-                       Prefix => New_Occurrence_Of (Styp, Loc),
+                       Prefix         => New_Occurrence_Of (Styp, Loc),
                        Attribute_Name => Name_First)));
             end if;
 
@@ -625,18 +625,18 @@ package body Exp_Pakd is
               Make_Op_Subtract (Loc,
                 Left_Opnd => Convert_To (Standard_Integer,
                   Make_Attribute_Reference (Loc,
-                    Prefix => New_Occurrence_Of (Styp, Loc),
+                    Prefix         => New_Occurrence_Of (Styp, Loc),
                     Attribute_Name => Name_Pos,
-                    Expressions => New_List (Newsub))),
+                    Expressions    => New_List (Newsub))),
 
                 Right_Opnd =>
                   Convert_To (Standard_Integer,
                     Make_Attribute_Reference (Loc,
-                      Prefix => New_Occurrence_Of (Styp, Loc),
+                      Prefix         => New_Occurrence_Of (Styp, Loc),
                       Attribute_Name => Name_Pos,
-                      Expressions => New_List (
+                      Expressions    => New_List (
                         Make_Attribute_Reference (Loc,
-                        Prefix => New_Occurrence_Of (Styp, Loc),
+                        Prefix         => New_Occurrence_Of (Styp, Loc),
                         Attribute_Name => Name_First)))));
          end if;
 
@@ -761,7 +761,7 @@ package body Exp_Pakd is
          end if;
 
          Set_Is_Itype (PAT, True);
-         Set_Is_Packed_Array_Type (PAT, True);
+         Set_Packed_Array_Type (Typ, PAT);
          Analyze (Decl, Suppress => All_Checks);
 
          if Pushed_Scope then
@@ -780,10 +780,11 @@ package body Exp_Pakd is
 
          --  Set remaining fields of packed array type
 
-         Init_Alignment (PAT);
-         Set_Parent     (PAT, Empty);
-         Set_Packed_Array_Type (Typ, PAT);
+         Init_Alignment                (PAT);
+         Set_Parent                    (PAT, Empty);
          Set_Associated_Node_For_Itype (PAT, Typ);
+         Set_Is_Packed_Array_Type      (PAT, True);
+         Set_Original_Array_Type       (PAT, Typ);
 
          --  We definitely do not want to delay freezing for packed array
          --  types. This is of particular importance for the itypes that
@@ -801,14 +802,17 @@ package body Exp_Pakd is
       procedure Set_PB_Type is
       begin
          --  If the user has specified an explicit alignment for the
-         --  component, take it into account.
+         --  type or component, take it into account.
 
          if Csize <= 2 or else Csize = 4 or else Csize mod 2 /= 0
+           or else Alignment (Typ) = 1
            or else Component_Alignment (Typ) = Calign_Storage_Unit
          then
             PB_Type := RTE (RE_Packed_Bytes1);
 
-         elsif Csize mod 4 /= 0 then
+         elsif Csize mod 4 /= 0
+           or else Alignment (Typ) = 2
+         then
             PB_Type := RTE (RE_Packed_Bytes2);
 
          else
@@ -973,17 +977,28 @@ package body Exp_Pakd is
                 Type_Definition => Typedef);
          end;
 
+         --  Set type as packed array type and install it
+
+         Set_Is_Packed_Array_Type (PAT);
          Install_PAT;
          return;
 
-      --  Case of bit-packing required for unconstrained array. We simply
-      --  use Packed_Bytes{1,2,4} as appropriate, and we do not need to
-      --  construct a special packed array type.
+      --  Case of bit-packing required for unconstrained array. We create
+      --  a subtype that is equivalent to use Packed_Bytes{1,2,4} as needed.
 
       elsif not Is_Constrained (Typ) then
+         PAT :=
+           Make_Defining_Identifier (Loc,
+             Chars => Make_Packed_Array_Type_Name (Typ, Csize));
+
+         Set_Packed_Array_Type (Typ, PAT);
          Set_PB_Type;
-         Set_Packed_Array_Type (Typ, PB_Type);
-         Set_Is_Packed_Array_Type (Packed_Array_Type (Typ), True);
+
+         Decl :=
+           Make_Subtype_Declaration (Loc,
+             Defining_Identifier => PAT,
+               Subtype_Indication => New_Occurrence_Of (PB_Type, Loc));
+         Install_PAT;
          return;
 
       --  Remaining code is for the case of bit-packing for constrained array
@@ -1453,9 +1468,9 @@ package body Exp_Pakd is
               Make_Procedure_Call_Statement (Loc,
                   Name => New_Occurrence_Of (Set_nn, Loc),
                   Parameter_Associations => New_List (
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
-                      Prefix => Obj),
+                      Prefix         => Obj),
                     Subscr,
                     Unchecked_Convert_To (Bits_nn,
                       Convert_To (Ctyp, Rhs)))));
@@ -1507,13 +1522,13 @@ package body Exp_Pakd is
                 Left_Opnd => Subscr,
                 Right_Opnd =>
                  Make_Attribute_Reference (Ploc,
-                   Prefix => New_Occurrence_Of (Atyp, Ploc),
+                   Prefix         => New_Occurrence_Of (Atyp, Ploc),
                    Attribute_Name => Name_Component_Size));
 
          elsif Nkind (Pref) = N_Selected_Component then
             Term :=
               Make_Attribute_Reference (Ploc,
-                Prefix => Selector_Name (Pref),
+                Prefix         => Selector_Name (Pref),
                 Attribute_Name => Name_Bit_Position);
 
          else
@@ -1541,7 +1556,7 @@ package body Exp_Pakd is
             Left_Opnd =>
               Unchecked_Convert_To (RTE (RE_Integer_Address),
                 Make_Attribute_Reference (Loc,
-                  Prefix => Pref,
+                  Prefix         => Pref,
                   Attribute_Name => Name_Address)),
 
             Right_Opnd =>
@@ -1619,7 +1634,8 @@ package body Exp_Pakd is
 
                         Right_Opnd =>
                           Convert_To (BT,
-                            New_Occurrence_Of (Standard_True, Loc))))));
+                            New_Occurrence_Of (Standard_True, Loc)))),
+                Reason => CE_Range_Check_Failed));
          end;
       end if;
 
@@ -1701,9 +1717,9 @@ package body Exp_Pakd is
                 Name => New_Occurrence_Of (RTE (E_Id), Loc),
                   Parameter_Associations => New_List (
 
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
-                      Prefix => L),
+                      Prefix         => L),
 
                     Make_Op_Multiply (Loc,
                       Left_Opnd =>
@@ -1715,9 +1731,9 @@ package body Exp_Pakd is
                       Right_Opnd =>
                         Make_Integer_Literal (Loc, Component_Size (Ltyp))),
 
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
-                      Prefix => R),
+                      Prefix         => R),
 
                     Make_Op_Multiply (Loc,
                       Left_Opnd =>
@@ -1729,7 +1745,7 @@ package body Exp_Pakd is
                       Right_Opnd =>
                         Make_Integer_Literal (Loc, Component_Size (Rtyp))),
 
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
                       Prefix => New_Occurrence_Of (Result_Ent, Loc))))));
 
@@ -1841,9 +1857,9 @@ package body Exp_Pakd is
                 Make_Function_Call (Loc,
                   Name => New_Occurrence_Of (Get_nn, Loc),
                   Parameter_Associations => New_List (
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
-                      Prefix => Obj),
+                      Prefix         => Obj),
                     Subscr))));
          end;
       end if;
@@ -1885,7 +1901,7 @@ package body Exp_Pakd is
           Left_Opnd =>
             Make_Attribute_Reference (Loc,
               Attribute_Name => Name_Length,
-              Prefix => New_Occurrence_Of (Ltyp, Loc)),
+              Prefix         => New_Occurrence_Of (Ltyp, Loc)),
           Right_Opnd =>
             Make_Integer_Literal (Loc, Component_Size (Ltyp)));
 
@@ -1894,7 +1910,7 @@ package body Exp_Pakd is
           Left_Opnd =>
             Make_Attribute_Reference (Loc,
               Attribute_Name => Name_Length,
-              Prefix => New_Occurrence_Of (Rtyp, Loc)),
+              Prefix         => New_Occurrence_Of (Rtyp, Loc)),
           Right_Opnd =>
             Make_Integer_Literal (Loc, Component_Size (Rtyp)));
 
@@ -1934,15 +1950,15 @@ package body Exp_Pakd is
            Make_Function_Call (Loc,
              Name => New_Occurrence_Of (RTE (RE_Bit_Eq), Loc),
              Parameter_Associations => New_List (
-               Make_Attribute_Reference (Loc,
+               Make_Byte_Aligned_Attribute_Reference (Loc,
                  Attribute_Name => Name_Address,
-                 Prefix => L),
+                 Prefix         => L),
 
                LLexpr,
 
-               Make_Attribute_Reference (Loc,
+               Make_Byte_Aligned_Attribute_Reference (Loc,
                  Attribute_Name => Name_Address,
-                 Prefix => R),
+                 Prefix         => R),
 
                RLexpr)));
       end if;
@@ -1995,7 +2011,8 @@ package body Exp_Pakd is
                  Right_Opnd =>
                    Make_Attribute_Reference (Loc,
                      Prefix         => New_Occurrence_Of (CT, Loc),
-                     Attribute_Name => Name_Last))));
+                     Attribute_Name => Name_Last)),
+             Reason => CE_Range_Check_Failed));
       end;
 
       --  Now that that silliness is taken care of, get packed array type
@@ -2052,9 +2069,9 @@ package body Exp_Pakd is
                 Name => New_Occurrence_Of (RTE (RE_Bit_Not), Loc),
                   Parameter_Associations => New_List (
 
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
-                      Prefix => Opnd),
+                      Prefix         => Opnd),
 
                     Make_Op_Multiply (Loc,
                       Left_Opnd =>
@@ -2066,7 +2083,7 @@ package body Exp_Pakd is
                       Right_Opnd =>
                         Make_Integer_Literal (Loc, Component_Size (Rtyp))),
 
-                    Make_Attribute_Reference (Loc,
+                    Make_Byte_Aligned_Attribute_Reference (Loc,
                       Attribute_Name => Name_Address,
                       Prefix => New_Occurrence_Of (Result_Ent, Loc))))));
 
@@ -2146,13 +2163,11 @@ package body Exp_Pakd is
       --  If we have a specified alignment, see if it is sufficient, if not
       --  then we can't possibly be aligned enough in any case.
 
-      elsif Is_Entity_Name (Obj)
-        and then Known_Alignment (Entity (Obj))
-      then
+      elsif Known_Alignment (Etype (Obj)) then
          --  Alignment required is 4 if size is a multiple of 4, and
          --  2 otherwise (e.g. 12 bits requires 4, 10 bits requires 2)
 
-         if Alignment (Entity (Obj)) < 4 - (Csiz mod 4) then
+         if Alignment (Etype (Obj)) < 4 - (Csiz mod 4) then
             return False;
          end if;
       end if;
@@ -2345,7 +2360,7 @@ package body Exp_Pakd is
             then
                Rewrite (Expr,
                  Make_Attribute_Reference (Loc,
-                   Prefix => New_Occurrence_Of (Expr_Typ, Loc),
+                   Prefix         => New_Occurrence_Of (Expr_Typ, Loc),
                    Attribute_Name => Name_Pos,
                    Expressions    => New_List (Relocate_Node (Expr))));
                Analyze_And_Resolve (Expr, Standard_Natural);