[multiple changes]

2017-04-25  Bob Duff  <duff@adacore.com>

	* freeze.adb (Freeze_Record_Type): Use the
	underlying type of the component type to determine whether it's
	elementary. For representation clause purposes, a private type
	should behave the same as its full type.
	* fname.ads, fname.adb (Is_Predefined_File_Name):
	Make sure things like "system.ali" are recognized as predefined.

2017-04-25  Javier Miranda  <miranda@adacore.com>

	* debug.adb: Update documentation of -gnatd.6.

2017-04-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch5.adb (Preanalyze_Range): Handle properly an Ada2012
	element iterator when the name is an overloaded function call,
	one of whose interpretations yields an array.

From-SVN: r247155

gcc/ada/ChangeLog

 2017-04-25  Bob Duff  <duff@adacore.com>
 
+	* freeze.adb (Freeze_Record_Type): Use the
+	underlying type of the component type to determine whether it's
+	elementary. For representation clause purposes, a private type
+	should behave the same as its full type.
+	* fname.ads, fname.adb (Is_Predefined_File_Name):
+	Make sure things like "system.ali" are recognized as predefined.
+
+2017-04-25  Javier Miranda  <miranda@adacore.com>
+
+	* debug.adb: Update documentation of -gnatd.6.
+
+2017-04-25  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch5.adb (Preanalyze_Range): Handle properly an Ada2012
+	element iterator when the name is an overloaded function call,
+	one of whose interpretations yields an array.
+
+2017-04-25  Bob Duff  <duff@adacore.com>
+
 	* uname.ads, uname.adb (Is_Predefined_Unit_Name,
 	Is_Internal_Unit_Name): New functions for operating on unit
 	names, as opposed to file names. There's some duplicated code

gcc/ada/debug.adb

@@ -160,7 +160,7 @@ package body Debug is
    --  d.3  Output debugging information from Exp_Unst
    --  d.4  Do not delete generated C file in case of errors
    --  d.5  Do not generate imported subprogram definitions in C code
-   --  d.6  Do not avoid declaring unreferenced itypes in C code
+   --  d.6  Do not avoid declaring unreferenced types in C code
    --  d.7
    --  d.8
    --  d.9
@@ -781,9 +781,9 @@ package body Debug is
    --       This debug flag disables this generation when generating C code,
    --       assuming a proper #include will be used instead.
 
-   --  d.6  By default the C back-end avoids declaring itypes that are not
+   --  d.6  By default the C back-end avoids declaring types that are not
    --       referenced by the generated C code. This debug flag restores the
-   --       output of all the itypes.
+   --       output of all the types.
 
    ------------------------------------------
    -- Documentation for Binder Debug Flags --

gcc/ada/fname.adb

@@ -134,7 +134,7 @@ package body Fname is
       return
         Is_Predefined_File_Name (Fname, Renamings_Included)
           or else Has_Prefix (Fname, Prefix => "g-")
-          or else Has_Prefix (Fname, Prefix => "gnat.ad");
+          or else Has_Prefix (Fname, Prefix => "gnat.");
    end Is_Internal_File_Name;
 
    function Is_Internal_File_Name
@@ -174,9 +174,13 @@ package body Fname is
          return False;
       end if;
 
-      if Has_Prefix (Fname, Prefix => "ada.ad")              --  Ada
-        or else Has_Prefix (Fname, Prefix => "interfac.ad")  --  Interfaces
-        or else Has_Prefix (Fname, Prefix => "system.ad")    --  System
+      --  We include the "." in the prefixes below, so we don't match (e.g.)
+      --  adamant.ads. So the first line matches "ada.ads", "ada.adb", and
+      --  "ada.ali".
+
+      if Has_Prefix (Fname, Prefix => "ada.")              --  Ada
+        or else Has_Prefix (Fname, Prefix => "interfac.")  --  Interfaces
+        or else Has_Prefix (Fname, Prefix => "system.")    --  System
       then
          return True;
       end if;
@@ -190,45 +194,46 @@ package body Fname is
       return
          --  Calendar
 
-        Has_Prefix (Fname, Prefix => "calendar.ad")
+        Has_Prefix (Fname, Prefix => "calendar.")
 
          --  Machine_Code
 
-          or else Has_Prefix (Fname, Prefix => "machcode.ad")
+          or else Has_Prefix (Fname, Prefix => "machcode.")
 
          --  Unchecked_Conversion
 
-          or else Has_Prefix (Fname, Prefix => "unchconv.ad")
+          or else Has_Prefix (Fname, Prefix => "unchconv.")
 
          --  Unchecked_Deallocation
 
-          or else Has_Prefix (Fname, Prefix => "unchdeal.ad")
+          or else Has_Prefix (Fname, Prefix => "unchdeal.")
 
          --  Direct_IO
 
-          or else Has_Prefix (Fname, Prefix => "directio.ad")
+          or else Has_Prefix (Fname, Prefix => "directio.")
 
          --  IO_Exceptions
 
-          or else Has_Prefix (Fname, Prefix => "ioexcept.ad")
+          or else Has_Prefix (Fname, Prefix => "ioexcept.")
 
          --  Sequential_IO
 
-          or else Has_Prefix (Fname, Prefix => "sequenio.ad")
+          or else Has_Prefix (Fname, Prefix => "sequenio.")
 
          --  Text_IO
 
-          or else Has_Prefix (Fname, Prefix => "text_io.ad");
+          or else Has_Prefix (Fname, Prefix => "text_io.");
    end Is_Predefined_File_Name;
 
    function Is_Predefined_File_Name
      (Fname              : File_Name_Type;
       Renamings_Included : Boolean := True) return Boolean
    is
-   begin
-      return
+      Result : constant Boolean :=
         Is_Predefined_File_Name
           (Get_Name_String (Fname), Renamings_Included);
+   begin
+      return Result;
    end Is_Predefined_File_Name;
 
    ---------------

gcc/ada/freeze.adb

@@ -3756,14 +3756,15 @@ package body Freeze is
          --  cannot modify the size of alignment of an aliased component.
 
          All_Elem_Components : Boolean := True;
-         --  Set False if we encounter a component of a composite type
+         --  True if all components are of a type whose underlying type is
+         --  elementary.
 
          All_Sized_Components : Boolean := True;
-         --  Set False if we encounter a component with unknown RM_Size
+         --  True if all components have a known RM_Size
 
          All_Storage_Unit_Components : Boolean := True;
-         --  Set False if we encounter a component of a composite type whose
-         --  RM_Size is not a multiple of the storage unit.
+         --  True if all components have an RM_Size that is a multiple of the
+         --  storage unit.
 
          Elem_Component_Total_Esize : Uint := Uint_0;
          --  Accumulates total Esize values of all elementary components. Used
@@ -4091,7 +4092,9 @@ package body Freeze is
                Sized_Component_Total_RM_Size :=
                  Sized_Component_Total_RM_Size + RM_Size (Etype (Comp));
 
-               if Is_Elementary_Type (Etype (Comp)) then
+               if Present (Underlying_Type (Etype (Comp)))
+                 and then Is_Elementary_Type (Underlying_Type (Etype (Comp)))
+               then
                   Elem_Component_Total_Esize :=
                     Elem_Component_Total_Esize + Esize (Etype (Comp));
                else

gcc/ada/sem_ch5.adb

@@ -3811,6 +3811,7 @@ package body Sem_Ch5 is
       if Nkind (R_Copy) in N_Subexpr and then Is_Overloaded (R_Copy) then
 
          --  Apply preference rules for range of predefined integer types, or
+         --  check for array or iterable construct for "of" iterator, or
          --  diagnose true ambiguity.
 
          declare
@@ -3842,6 +3843,24 @@ package body Sem_Ch5 is
                         exit;
                      end if;
                   end if;
+
+               elsif Nkind (Parent (R_Copy)) = N_Iterator_Specification
+                 and then Of_Present (Parent (R_Copy))
+               then
+                  if Is_Array_Type (It.Typ)
+                    or else Has_Aspect (It.Typ, Aspect_Iterator_Element)
+                    or else Has_Aspect (It.Typ, Aspect_Constant_Indexing)
+                    or else Has_Aspect (It.Typ, Aspect_Variable_Indexing)
+                  then
+                     if No (Found) then
+                        Found := It.Typ;
+                        Set_Etype (R_Copy, It.Typ);
+
+                     else
+                        Error_Msg_N
+                          ("ambiguous domain of iteration", R_Copy);
+                     end if;
+                  end if;
                end if;
 
                Get_Next_Interp (I, It);