[multiple changes]

2017-04-25  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb (Insert_Valid_Check): Do not generate
	a validity check when inside a generic.

2017-04-25  Yannick Moy  <moy@adacore.com>

	* sem_res.adb (Resolve_Type_Conversion): Fix bad logic.

2017-04-25  Arnaud Charlet  <charlet@adacore.com>

	* snames.ads-tmpl (Snames): More names for detecting predefined
	potentially blocking subprograms.

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

	* sem_prag.adb (Analyze_Pre_Post_Condition): The rules
	concerning inheritance of class-wide preconditions do not apply
	to postconditions.

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

	* s-ficobl.ads: Minor comment fix.

From-SVN: r247174

gcc/ada/ChangeLog

+2017-04-25  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* checks.adb (Insert_Valid_Check): Do not generate
+	a validity check when inside a generic.
+
+2017-04-25  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Type_Conversion): Fix bad logic.
+
+2017-04-25  Arnaud Charlet  <charlet@adacore.com>
+
+	* snames.ads-tmpl (Snames): More names for detecting predefined
+	potentially blocking subprograms.
+
+2017-04-25  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_prag.adb (Analyze_Pre_Post_Condition): The rules
+	concerning inheritance of class-wide preconditions do not apply
+	to postconditions.
+
+2017-04-25  Bob Duff  <duff@adacore.com>
+
+	* s-ficobl.ads: Minor comment fix.
+
 2017-04-25  Yannick Moy  <moy@adacore.com>
 
 	* checks.adb (Apply_Scalar_Range_Check): Analyze precisely

gcc/ada/checks.adb

@@ -7233,27 +7233,31 @@ package body Checks is
         or else Expr_Known_Valid (Expr)
       then
          return;
-      end if;
 
       --  Do not insert checks within a predicate function. This will arise
       --  if the current unit and the predicate function are being compiled
       --  with validity checks enabled.
 
-      if Present (Predicate_Function (Typ))
+      elsif Present (Predicate_Function (Typ))
         and then Current_Scope = Predicate_Function (Typ)
       then
          return;
-      end if;
 
       --  If the expression is a packed component of a modular type of the
       --  right size, the data is always valid.
 
-      if Nkind (Expr) = N_Selected_Component
+      elsif Nkind (Expr) = N_Selected_Component
         and then Present (Component_Clause (Entity (Selector_Name (Expr))))
         and then Is_Modular_Integer_Type (Typ)
         and then Modulus (Typ) = 2 ** Esize (Entity (Selector_Name (Expr)))
       then
          return;
+
+      --  Do not generate a validity check when inside a generic unit as this
+      --  is an expansion activity.
+
+      elsif Inside_A_Generic then
+         return;
       end if;
 
       --  If we have a checked conversion, then validity check applies to

gcc/ada/s-ficobl.ads

@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---            Copyright (C) 1992-2014, Free Software Foundation, Inc.       --
+--            Copyright (C) 1992-2016, 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- --
@@ -89,7 +89,7 @@ package System.File_Control_Block is
       Name : Pstring;
       --  A pointer to the file name. The file name is null for temporary
       --  files, and also for standard files (stdin, stdout, stderr). The
-      --  name is always null-terminated if it is non-null.
+      --  name is always NUL-terminated if it is non-null.
 
       Encoding : System.CRTL.Filename_Encoding;
       --  Encoding used to specified the filename

gcc/ada/sem_prag.adb

@@ -4417,6 +4417,7 @@ package body Sem_Prag is
 
             begin
                if Class_Present (N)
+                 and then Pragma_Name (N) = Name_Precondition
                  and then Present (Overridden_Operation (E))
                  and then not Inherits_Class_Wide_Pre (E)
                then

gcc/ada/sem_res.adb

@@ -11055,17 +11055,17 @@ package body Sem_Res is
 
       --  If at this stage we have a real to integer conversion, make sure that
       --  the Do_Range_Check flag is set, because such conversions in general
-      --  need a range check. We only need this if expansion is off, or we are
-      --  in GNATprove mode and the conversion if from fixed-point to integer
+      --  need a range check. We only need this if expansion is off.
+      --  In GNATprove mode, we only do that when converting from fixed-point
       --  (as floating-point to integer conversions are now handled in
       --  GNATprove mode).
 
       if Nkind (N) = N_Type_Conversion
         and then not Expander_Active
         and then Is_Integer_Type (Target_Typ)
-        and then (Is_Real_Type (Operand_Typ)
-                   or else (GNATprove_Mode
-                             and then Is_Fixed_Point_Type (Operand_Typ)))
+        and then (Is_Fixed_Point_Type (Operand_Typ)
+                   or else (not GNATprove_Mode
+                             and then Is_Floating_Point_Type (Operand_Typ)))
       then
          Set_Do_Range_Check (Operand);
       end if;

gcc/ada/snames.ads-tmpl

@@ -275,14 +275,18 @@ package Snames is
    Name_EDF                            : constant Name_Id := N + $;
    Name_Reset_Standard_Files           : constant Name_Id := N + $;
    Name_Sequential_IO                  : constant Name_Id := N + $;
+   Name_Strings                        : constant Name_Id := N + $;
    Name_Streams                        : constant Name_Id := N + $;
    Name_Suspend_Until_True             : constant Name_Id := N + $;
    Name_Suspend_Until_True_And_Set_Deadline : constant Name_Id := N + $;
    Name_Synchronous_Barriers           : constant Name_Id := N + $;
    Name_Task_Identification            : constant Name_Id := N + $;
    Name_Text_Streams                   : constant Name_Id := N + $;
+   Name_Unbounded                      : constant Name_Id := N + $;
    Name_Unbounded_IO                   : constant Name_Id := N + $;
    Name_Wait_For_Release               : constant Name_Id := N + $;
+   Name_Wide_Unbounded                 : constant Name_Id := N + $;
+   Name_Wide_Wide_Unbounded            : constant Name_Id := N + $;
    Name_Yield                          : constant Name_Id := N + $;
 
    --  Names of implementations of the distributed systems annex