[multiple changes]

2011-08-30  Javier Miranda  <miranda@adacore.com>

	* sem_ch3.adb (Add_Internal_Interface_Entities): If serious errors have
	been reported and a subprogram covering an interface primitive is not
	found then skip generating the internal entity. Done to avoid crashing
	the frontend.
	(Check_Abstract_Overriding): Change text of error of wrong formal of
	protected subprogram or entry. Done for consistency to emit exactly the
	same error reported by Check_Synchronized_Overriding. In addition, the
	error is restricted to protected types (bug found working on AI05-0090)

2011-08-30  Yannick Moy  <moy@adacore.com>

	* exp_aggr.adb, exp_ch11.adb, exp_prag.adb: Remove early exit during
	expansion in Alfa mode.
	* exp_ch6.adb, exp_ch6.ads (Expand_Actuals): Make subprogram public.
	* exp_light.adb, exp_light.ads: New package defining light expansion.
	* expander.adb (Expand): Call light expansion in Alfa mode
	* exp_ch6_light.adb, exp_ch6_light.ads: Light expansion of chapter 6
	constructs.
	* exp_ch7_light.adb, exp_ch7_light.ads: Light expansion of chapter 7
	constructs.
	* exp_attr_light.adb, exp_attr_light.ads: Light expansion of attributes
	* gnat1drv.adb (Adjust_Global_Switches): Comment

2011-08-30  Yannick Moy  <moy@adacore.com>

	* lib-xref-alfa.adb: Minor refactoring.

2011-08-30  Yannick Moy  <moy@adacore.com>

	* exp_ch9.adb (Expand_Entry_Barrier): Do not perform expansion in Alfa
	mode.
	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Do not perform
	expansion in Alfa mode.
	* sem_ch9.adb (Analyze_Entry_Body): Do not perform expansion in Alfa
	mode.

2011-08-30  Robert Dewar  <dewar@adacore.com>

	* debug_a.adb: Update comment.

From-SVN: r178304

1 files changed, 219 insertions, 212 deletions

diff --git a/gcc/ada/expander.adb b/gcc/ada/expander.adb
index 95b5d97..59045e7 100644
--- a/gcc/ada/expander.adb
+++ b/gcc/ada/expander.adb
@@ -39,6 +39,7 @@ with Exp_Ch9;   use Exp_Ch9;
 with Exp_Ch11;  use Exp_Ch11;
 with Exp_Ch12;  use Exp_Ch12;
 with Exp_Ch13;  use Exp_Ch13;
+with Exp_Light; use Exp_Light;
 with Exp_Prag;  use Exp_Prag;
 with Opt;       use Opt;
 with Rtsfind;   use Rtsfind;
@@ -131,325 +132,331 @@ package body Expander is
          --  routines.
 
          begin
-            case Nkind (N) is
+            if ALFA_Mode then
+               Expand_Light (N);
 
-               when N_Abort_Statement =>
-                  Expand_N_Abort_Statement (N);
+            else
+               case Nkind (N) is
 
-               when N_Accept_Statement =>
-                  Expand_N_Accept_Statement (N);
+                  when N_Abort_Statement =>
+                     Expand_N_Abort_Statement (N);
 
-               when N_Aggregate =>
-                  Expand_N_Aggregate (N);
+                  when N_Accept_Statement =>
+                     Expand_N_Accept_Statement (N);
 
-               when N_Allocator =>
-                  Expand_N_Allocator (N);
+                  when N_Aggregate =>
+                     Expand_N_Aggregate (N);
 
-               when N_And_Then =>
-                  Expand_N_And_Then (N);
+                  when N_Allocator =>
+                     Expand_N_Allocator (N);
 
-               when N_Assignment_Statement =>
-                  Expand_N_Assignment_Statement (N);
+                  when N_And_Then =>
+                     Expand_N_And_Then (N);
 
-               when N_Asynchronous_Select =>
-                  Expand_N_Asynchronous_Select (N);
+                  when N_Assignment_Statement =>
+                     Expand_N_Assignment_Statement (N);
 
-               when N_Attribute_Definition_Clause =>
-                  Expand_N_Attribute_Definition_Clause (N);
+                  when N_Asynchronous_Select =>
+                     Expand_N_Asynchronous_Select (N);
 
-               when N_Attribute_Reference =>
-                  Expand_N_Attribute_Reference (N);
+                  when N_Attribute_Definition_Clause =>
+                     Expand_N_Attribute_Definition_Clause (N);
 
-               when N_Block_Statement =>
-                  Expand_N_Block_Statement (N);
+                  when N_Attribute_Reference =>
+                     Expand_N_Attribute_Reference (N);
 
-               when N_Case_Expression =>
-                  Expand_N_Case_Expression (N);
+                  when N_Block_Statement =>
+                     Expand_N_Block_Statement (N);
 
-               when N_Case_Statement =>
-                  Expand_N_Case_Statement (N);
+                  when N_Case_Expression =>
+                     Expand_N_Case_Expression (N);
 
-               when N_Conditional_Entry_Call =>
-                  Expand_N_Conditional_Entry_Call (N);
+                  when N_Case_Statement =>
+                     Expand_N_Case_Statement (N);
 
-               when N_Conditional_Expression =>
-                  Expand_N_Conditional_Expression (N);
+                  when N_Conditional_Entry_Call =>
+                     Expand_N_Conditional_Entry_Call (N);
 
-               when N_Delay_Relative_Statement =>
-                  Expand_N_Delay_Relative_Statement (N);
+                  when N_Conditional_Expression =>
+                     Expand_N_Conditional_Expression (N);
 
-               when N_Delay_Until_Statement =>
-                  Expand_N_Delay_Until_Statement (N);
+                  when N_Delay_Relative_Statement =>
+                     Expand_N_Delay_Relative_Statement (N);
 
-               when N_Entry_Body =>
-                  Expand_N_Entry_Body (N);
+                  when N_Delay_Until_Statement =>
+                     Expand_N_Delay_Until_Statement (N);
 
-               when N_Entry_Call_Statement =>
-                  Expand_N_Entry_Call_Statement (N);
+                  when N_Entry_Body =>
+                     Expand_N_Entry_Body (N);
 
-               when N_Entry_Declaration =>
-                  Expand_N_Entry_Declaration (N);
+                  when N_Entry_Call_Statement =>
+                     Expand_N_Entry_Call_Statement (N);
 
-               when N_Exception_Declaration =>
-                  Expand_N_Exception_Declaration (N);
+                  when N_Entry_Declaration =>
+                     Expand_N_Entry_Declaration (N);
 
-               when N_Exception_Renaming_Declaration =>
-                  Expand_N_Exception_Renaming_Declaration (N);
+                  when N_Exception_Declaration =>
+                     Expand_N_Exception_Declaration (N);
 
-               when N_Exit_Statement =>
-                  Expand_N_Exit_Statement (N);
+                  when N_Exception_Renaming_Declaration =>
+                     Expand_N_Exception_Renaming_Declaration (N);
 
-               when N_Expanded_Name =>
-                  Expand_N_Expanded_Name (N);
+                  when N_Exit_Statement =>
+                     Expand_N_Exit_Statement (N);
 
-               when N_Explicit_Dereference =>
-                  Expand_N_Explicit_Dereference (N);
+                  when N_Expanded_Name =>
+                     Expand_N_Expanded_Name (N);
 
-               when N_Expression_With_Actions =>
-                  Expand_N_Expression_With_Actions (N);
+                  when N_Explicit_Dereference =>
+                     Expand_N_Explicit_Dereference (N);
 
-               when N_Extended_Return_Statement =>
-                  Expand_N_Extended_Return_Statement (N);
+                  when N_Expression_With_Actions =>
+                     Expand_N_Expression_With_Actions (N);
 
-               when N_Extension_Aggregate =>
-                  Expand_N_Extension_Aggregate (N);
+                  when N_Extended_Return_Statement =>
+                     Expand_N_Extended_Return_Statement (N);
 
-               when N_Free_Statement =>
-                  Expand_N_Free_Statement (N);
+                  when N_Extension_Aggregate =>
+                     Expand_N_Extension_Aggregate (N);
 
-               when N_Freeze_Entity =>
-                  Expand_N_Freeze_Entity (N);
+                  when N_Free_Statement =>
+                     Expand_N_Free_Statement (N);
 
-               when N_Full_Type_Declaration =>
-                  Expand_N_Full_Type_Declaration (N);
+                  when N_Freeze_Entity =>
+                     Expand_N_Freeze_Entity (N);
 
-               when N_Function_Call =>
-                  Expand_N_Function_Call (N);
+                  when N_Full_Type_Declaration =>
+                     Expand_N_Full_Type_Declaration (N);
 
-               when N_Generic_Instantiation =>
-                  Expand_N_Generic_Instantiation (N);
+                  when N_Function_Call =>
+                     Expand_N_Function_Call (N);
 
-               when N_Goto_Statement =>
-                  Expand_N_Goto_Statement (N);
+                  when N_Generic_Instantiation =>
+                     Expand_N_Generic_Instantiation (N);
 
-               when N_Handled_Sequence_Of_Statements =>
-                  Expand_N_Handled_Sequence_Of_Statements (N);
+                  when N_Goto_Statement =>
+                     Expand_N_Goto_Statement (N);
 
-               when N_Identifier =>
-                  Expand_N_Identifier (N);
+                  when N_Handled_Sequence_Of_Statements =>
+                     Expand_N_Handled_Sequence_Of_Statements (N);
 
-               when N_Indexed_Component =>
-                  Expand_N_Indexed_Component (N);
+                  when N_Identifier =>
+                     Expand_N_Identifier (N);
 
-               when N_If_Statement =>
-                  Expand_N_If_Statement (N);
+                  when N_Indexed_Component =>
+                     Expand_N_Indexed_Component (N);
 
-               when N_In =>
-                  Expand_N_In (N);
+                  when N_If_Statement =>
+                     Expand_N_If_Statement (N);
 
-               when N_Loop_Statement =>
-                  Expand_N_Loop_Statement (N);
+                  when N_In =>
+                     Expand_N_In (N);
 
-               when N_Not_In =>
-                  Expand_N_Not_In (N);
+                  when N_Loop_Statement =>
+                     Expand_N_Loop_Statement (N);
 
-               when N_Null =>
-                  Expand_N_Null (N);
+                  when N_Not_In =>
+                     Expand_N_Not_In (N);
 
-               when N_Object_Declaration =>
-                  Expand_N_Object_Declaration (N);
+                  when N_Null =>
+                     Expand_N_Null (N);
 
-               when N_Object_Renaming_Declaration =>
-                  Expand_N_Object_Renaming_Declaration (N);
+                  when N_Object_Declaration =>
+                     Expand_N_Object_Declaration (N);
 
-               when N_Op_Add =>
-                  Expand_N_Op_Add (N);
+                  when N_Object_Renaming_Declaration =>
+                     Expand_N_Object_Renaming_Declaration (N);
 
-               when N_Op_Abs =>
-                  Expand_N_Op_Abs (N);
+                  when N_Op_Add =>
+                     Expand_N_Op_Add (N);
 
-               when N_Op_And =>
-                  Expand_N_Op_And (N);
+                  when N_Op_Abs =>
+                     Expand_N_Op_Abs (N);
 
-               when N_Op_Concat =>
-                  Expand_N_Op_Concat (N);
+                  when N_Op_And =>
+                     Expand_N_Op_And (N);
 
-               when N_Op_Divide =>
-                  Expand_N_Op_Divide (N);
+                  when N_Op_Concat =>
+                     Expand_N_Op_Concat (N);
 
-               when N_Op_Eq =>
-                  Expand_N_Op_Eq (N);
+                  when N_Op_Divide =>
+                     Expand_N_Op_Divide (N);
 
-               when N_Op_Expon =>
-                  Expand_N_Op_Expon (N);
+                  when N_Op_Eq =>
+                     Expand_N_Op_Eq (N);
 
-               when N_Op_Ge =>
-                  Expand_N_Op_Ge (N);
+                  when N_Op_Expon =>
+                     Expand_N_Op_Expon (N);
 
-               when N_Op_Gt =>
-                  Expand_N_Op_Gt (N);
+                  when N_Op_Ge =>
+                     Expand_N_Op_Ge (N);
 
-               when N_Op_Le =>
-                  Expand_N_Op_Le (N);
+                  when N_Op_Gt =>
+                     Expand_N_Op_Gt (N);
 
-               when N_Op_Lt =>
-                  Expand_N_Op_Lt (N);
+                  when N_Op_Le =>
+                     Expand_N_Op_Le (N);
 
-               when N_Op_Minus =>
-                  Expand_N_Op_Minus (N);
+                  when N_Op_Lt =>
+                     Expand_N_Op_Lt (N);
 
-               when N_Op_Mod =>
-                  Expand_N_Op_Mod (N);
+                  when N_Op_Minus =>
+                     Expand_N_Op_Minus (N);
 
-               when N_Op_Multiply =>
-                  Expand_N_Op_Multiply (N);
+                  when N_Op_Mod =>
+                     Expand_N_Op_Mod (N);
 
-               when N_Op_Ne =>
-                  Expand_N_Op_Ne (N);
+                  when N_Op_Multiply =>
+                     Expand_N_Op_Multiply (N);
 
-               when N_Op_Not =>
-                  Expand_N_Op_Not (N);
+                  when N_Op_Ne =>
+                     Expand_N_Op_Ne (N);
 
-               when N_Op_Or =>
-                  Expand_N_Op_Or (N);
+                  when N_Op_Not =>
+                     Expand_N_Op_Not (N);
 
-               when N_Op_Plus =>
-                  Expand_N_Op_Plus (N);
+                  when N_Op_Or =>
+                     Expand_N_Op_Or (N);
 
-               when N_Op_Rem =>
-                  Expand_N_Op_Rem (N);
+                  when N_Op_Plus =>
+                     Expand_N_Op_Plus (N);
 
-               when N_Op_Rotate_Left =>
-                  Expand_N_Op_Rotate_Left (N);
+                  when N_Op_Rem =>
+                     Expand_N_Op_Rem (N);
 
-               when N_Op_Rotate_Right =>
-                  Expand_N_Op_Rotate_Right (N);
+                  when N_Op_Rotate_Left =>
+                     Expand_N_Op_Rotate_Left (N);
 
-               when N_Op_Shift_Left =>
-                  Expand_N_Op_Shift_Left (N);
+                  when N_Op_Rotate_Right =>
+                     Expand_N_Op_Rotate_Right (N);
 
-               when N_Op_Shift_Right =>
-                  Expand_N_Op_Shift_Right (N);
+                  when N_Op_Shift_Left =>
+                     Expand_N_Op_Shift_Left (N);
 
-               when N_Op_Shift_Right_Arithmetic =>
-                  Expand_N_Op_Shift_Right_Arithmetic (N);
+                  when N_Op_Shift_Right =>
+                     Expand_N_Op_Shift_Right (N);
 
-               when N_Op_Subtract =>
-                  Expand_N_Op_Subtract (N);
+                  when N_Op_Shift_Right_Arithmetic =>
+                     Expand_N_Op_Shift_Right_Arithmetic (N);
 
-               when N_Op_Xor =>
-                  Expand_N_Op_Xor (N);
+                  when N_Op_Subtract =>
+                     Expand_N_Op_Subtract (N);
 
-               when N_Or_Else =>
-                  Expand_N_Or_Else (N);
+                  when N_Op_Xor =>
+                     Expand_N_Op_Xor (N);
 
-               when N_Package_Body =>
-                  Expand_N_Package_Body (N);
+                  when N_Or_Else =>
+                     Expand_N_Or_Else (N);
 
-               when N_Package_Declaration =>
-                  Expand_N_Package_Declaration (N);
+                  when N_Package_Body =>
+                     Expand_N_Package_Body (N);
 
-               when N_Package_Renaming_Declaration =>
-                  Expand_N_Package_Renaming_Declaration (N);
+                  when N_Package_Declaration =>
+                     Expand_N_Package_Declaration (N);
 
-               when N_Subprogram_Renaming_Declaration =>
-                  Expand_N_Subprogram_Renaming_Declaration (N);
+                  when N_Package_Renaming_Declaration =>
+                     Expand_N_Package_Renaming_Declaration (N);
 
-               when N_Pragma =>
-                  Expand_N_Pragma (N);
+                  when N_Subprogram_Renaming_Declaration =>
+                     Expand_N_Subprogram_Renaming_Declaration (N);
 
-               when N_Procedure_Call_Statement =>
-                  Expand_N_Procedure_Call_Statement (N);
+                  when N_Pragma =>
+                     Expand_N_Pragma (N);
 
-               when N_Protected_Type_Declaration =>
-                  Expand_N_Protected_Type_Declaration (N);
+                  when N_Procedure_Call_Statement =>
+                     Expand_N_Procedure_Call_Statement (N);
 
-               when N_Protected_Body =>
-                  Expand_N_Protected_Body (N);
+                  when N_Protected_Type_Declaration =>
+                     Expand_N_Protected_Type_Declaration (N);
 
-               when N_Qualified_Expression =>
-                  Expand_N_Qualified_Expression (N);
+                  when N_Protected_Body =>
+                     Expand_N_Protected_Body (N);
 
-               when N_Quantified_Expression  =>
-                  Expand_N_Quantified_Expression (N);
+                  when N_Qualified_Expression =>
+                     Expand_N_Qualified_Expression (N);
 
-               when N_Raise_Statement =>
-                  Expand_N_Raise_Statement (N);
+                  when N_Quantified_Expression  =>
+                     Expand_N_Quantified_Expression (N);
 
-               when N_Raise_Constraint_Error =>
-                  Expand_N_Raise_Constraint_Error (N);
+                  when N_Raise_Statement =>
+                     Expand_N_Raise_Statement (N);
 
-               when N_Raise_Program_Error =>
-                  Expand_N_Raise_Program_Error (N);
+                  when N_Raise_Constraint_Error =>
+                     Expand_N_Raise_Constraint_Error (N);
 
-               when N_Raise_Storage_Error =>
-                  Expand_N_Raise_Storage_Error (N);
+                  when N_Raise_Program_Error =>
+                     Expand_N_Raise_Program_Error (N);
 
-               when N_Real_Literal =>
-                  Expand_N_Real_Literal (N);
+                  when N_Raise_Storage_Error =>
+                     Expand_N_Raise_Storage_Error (N);
 
-               when N_Record_Representation_Clause =>
-                  Expand_N_Record_Representation_Clause (N);
+                  when N_Real_Literal =>
+                     Expand_N_Real_Literal (N);
 
-               when N_Requeue_Statement =>
-                  Expand_N_Requeue_Statement (N);
+                  when N_Record_Representation_Clause =>
+                     Expand_N_Record_Representation_Clause (N);
 
-               when N_Simple_Return_Statement =>
-                  Expand_N_Simple_Return_Statement (N);
+                  when N_Requeue_Statement =>
+                     Expand_N_Requeue_Statement (N);
 
-               when N_Selected_Component =>
-                  Expand_N_Selected_Component (N);
+                  when N_Simple_Return_Statement =>
+                     Expand_N_Simple_Return_Statement (N);
 
-               when N_Selective_Accept =>
-                  Expand_N_Selective_Accept (N);
+                  when N_Selected_Component =>
+                     Expand_N_Selected_Component (N);
 
-               when N_Single_Task_Declaration =>
-                  Expand_N_Single_Task_Declaration (N);
+                  when N_Selective_Accept =>
+                     Expand_N_Selective_Accept (N);
 
-               when N_Slice =>
-                  Expand_N_Slice (N);
+                  when N_Single_Task_Declaration =>
+                     Expand_N_Single_Task_Declaration (N);
 
-               when N_Subtype_Indication =>
-                  Expand_N_Subtype_Indication (N);
+                  when N_Slice =>
+                     Expand_N_Slice (N);
 
-               when N_Subprogram_Body =>
-                  Expand_N_Subprogram_Body (N);
+                  when N_Subtype_Indication =>
+                     Expand_N_Subtype_Indication (N);
 
-               when N_Subprogram_Body_Stub =>
-                  Expand_N_Subprogram_Body_Stub (N);
+                  when N_Subprogram_Body =>
+                     Expand_N_Subprogram_Body (N);
 
-               when N_Subprogram_Declaration =>
-                  Expand_N_Subprogram_Declaration (N);
+                  when N_Subprogram_Body_Stub =>
+                     Expand_N_Subprogram_Body_Stub (N);
 
-               when N_Subprogram_Info =>
-                  Expand_N_Subprogram_Info (N);
+                  when N_Subprogram_Declaration =>
+                     Expand_N_Subprogram_Declaration (N);
 
-               when N_Task_Body =>
-                  Expand_N_Task_Body (N);
+                  when N_Subprogram_Info =>
+                     Expand_N_Subprogram_Info (N);
 
-               when N_Task_Type_Declaration =>
-                  Expand_N_Task_Type_Declaration (N);
+                  when N_Task_Body =>
+                     Expand_N_Task_Body (N);
 
-               when N_Timed_Entry_Call =>
-                  Expand_N_Timed_Entry_Call (N);
+                  when N_Task_Type_Declaration =>
+                     Expand_N_Task_Type_Declaration (N);
 
-               when N_Type_Conversion =>
-                  Expand_N_Type_Conversion (N);
+                  when N_Timed_Entry_Call =>
+                     Expand_N_Timed_Entry_Call (N);
 
-               when N_Unchecked_Expression =>
-                  Expand_N_Unchecked_Expression (N);
+                  when N_Type_Conversion =>
+                     Expand_N_Type_Conversion (N);
 
-               when N_Unchecked_Type_Conversion =>
-                  Expand_N_Unchecked_Type_Conversion (N);
+                  when N_Unchecked_Expression =>
+                     Expand_N_Unchecked_Expression (N);
 
-               when N_Variant_Part =>
-                  Expand_N_Variant_Part (N);
+                  when N_Unchecked_Type_Conversion =>
+                     Expand_N_Unchecked_Type_Conversion (N);
 
-               --  For all other node kinds, no expansion activity is required
+                  when N_Variant_Part =>
+                     Expand_N_Variant_Part (N);
 
-               when others => null;
+                  --  For all other node kinds, no expansion activity is
+                  --  required.
 
-            end case;
+                  when others => null;
+
+               end case;
+            end if;
 
          exception
             when RE_Not_Available =>