[multiple changes]

2012-06-12  Robert Dewar  <dewar@adacore.com>

	* sem_ch6.adb: Minor reformatting.

2012-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* gnat_ugn.texi: Couple of minor corrections.

2012-06-12  Thomas Quinot  <quinot@adacore.com>

	* sem_prag.adb (Check_Variant): An empty component list is not
	illegal in an unchecked union variant.

From-SVN: r188436

4 files changed, 21 insertions, 16 deletions

diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index a5a2548..c10eef0 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,16 @@
+2012-06-12  Robert Dewar  <dewar@adacore.com>
+
+	* sem_ch6.adb: Minor reformatting.
+
+2012-06-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat_ugn.texi: Couple of minor corrections.
+
+2012-06-12  Thomas Quinot  <quinot@adacore.com>
+
+	* sem_prag.adb (Check_Variant): An empty component list is not
+	illegal in an unchecked union variant.
+
 2012-06-12  Gary Dismukes  <dismukes@adacore.com>
 
 	* projects.texi: Remove comments.
diff --git a/gcc/ada/gnat_ugn.texi b/gcc/ada/gnat_ugn.texi
index 8380530..825c8a4 100644
--- a/gcc/ada/gnat_ugn.texi
+++ b/gcc/ada/gnat_ugn.texi
@@ -10618,13 +10618,13 @@ Any one of the following applies: @code{pragma Inline} is applied to the
 subprogram and the @option{^-gnatn^/INLINE^} switch is specified; the
 subprogram is local to the unit and called once from within it; the
 subprogram is small and optimization level @option{-O2} is specified;
-optimization level @option{-O3}) is specified.
+optimization level @option{-O3} is specified.
 @end itemize
 
 @noindent
 Calls to subprograms in @code{with}'ed units are normally not inlined.
 To achieve actual inlining (that is, replacement of the call by the code
-in the body of the subprogram), the following conditions must all be true.
+in the body of the subprogram), the following conditions must all be true:
 
 @itemize @bullet
 @item
diff --git a/gcc/ada/sem_ch6.adb b/gcc/ada/sem_ch6.adb
index 80e07fd..c69bf91 100644
--- a/gcc/ada/sem_ch6.adb
+++ b/gcc/ada/sem_ch6.adb
@@ -7416,6 +7416,7 @@ package body Sem_Ch6 is
             --  The following is too permissive. A more precise test should
             --  check that the generic actual is an ancestor subtype of the
             --  other ???.
+
             --  See code in Find_Corresponding_Spec that applies an additional
             --  filter to handle accidental amiguities in instances.
 
@@ -8164,19 +8165,17 @@ package body Sem_Ch6 is
 
       begin
          if Ekind (E) = E_Function
-           and then Is_Generic_Actual_Type (Etype (E))
-           /= Is_Generic_Actual_Type (Etype (Designator))
+           and then Is_Generic_Actual_Type (Etype (E)) /=
+                    Is_Generic_Actual_Type (Etype (Designator))
          then
             return True;
          end if;
 
          F1 := First_Formal (Designator);
          F2 := First_Formal (E);
-
          while Present (F1) loop
-            if
-              Is_Generic_Actual_Type (Etype (F1))
-              /= Is_Generic_Actual_Type (Etype (F2))
+            if Is_Generic_Actual_Type (Etype (F1)) /=
+               Is_Generic_Actual_Type (Etype (F2))
             then
                return True;
             end if;
@@ -8202,7 +8201,7 @@ package body Sem_Ch6 is
          if Scope (E) = Current_Scope then
             if Current_Scope = Standard_Standard
               or else (Ekind (E) = Ekind (Designator)
-                         and then Type_Conformant (E, Designator))
+                        and then Type_Conformant (E, Designator))
             then
                --  Within an instantiation, we know that spec and body are
                --  subtype conformant, because they were subtype conformant in
diff --git a/gcc/ada/sem_prag.adb b/gcc/ada/sem_prag.adb
index fa41b2c..cbcc0be 100644
--- a/gcc/ada/sem_prag.adb
+++ b/gcc/ada/sem_prag.adb
@@ -2483,13 +2483,6 @@ package body Sem_Prag is
          Comp  : Node_Id;
 
       begin
-         if not Is_Non_Empty_List (Component_Items (Clist)) then
-            Error_Msg_N
-              ("Unchecked_Union may not have empty component list",
-               Variant);
-            return;
-         end if;
-
          Comp := First (Component_Items (Clist));
          while Present (Comp) loop
             Check_Component (Comp, UU_Typ, In_Variant_Part => True);