[multiple changes]

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* debug.adb (dA): Adjust comment.
	* gnat1drv.adb (Gnat1drv): Likewise.
	* opt.ads (List_Representation_Info_Extended): New variable.
	* repinfo.adb (List_Record_Info): Split implementation into...
	(Compute_Max_Length): ...this.	Recurse on records if requested.
	(List_Record_Layout): Likewise.
	* switch-c.adb (Scan_Front_End_Switches) <'R'>: Use case
	statement, accept '0' and set List_Representation_Info_Extended
	on 'e'.
	* usage.adb (Usage): Document new -gnatRe variant.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

	* sem_prag.adb (Analyze_Pragma, case Default_Storage_Pool):
	Do not save the given entity in the global variable Default_Pool
	if the pragma appears within a generic unit.

2017-09-08  Bob Duff  <duff@adacore.com>

	* errout.adb (Delete_Warning): Do not
	decrement Warnings_Treated_As_Errors. This is called before
	Warnings_Treated_As_Errors has been incremented to account for
	this warning. Decrementing it here can lead to negative values
	of Warnings_Treated_As_Errors, raising Constraint_Error in
	checks-on builds, and causing the compiler to return an error
	code in checks-off builds.

From-SVN: r251873

gcc/ada/ChangeLog

+2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* debug.adb (dA): Adjust comment.
+	* gnat1drv.adb (Gnat1drv): Likewise.
+	* opt.ads (List_Representation_Info_Extended): New variable.
+	* repinfo.adb (List_Record_Info): Split implementation into...
+	(Compute_Max_Length): ...this.	Recurse on records if requested.
+	(List_Record_Layout): Likewise.
+	* switch-c.adb (Scan_Front_End_Switches) <'R'>: Use case
+	statement, accept '0' and set List_Representation_Info_Extended
+	on 'e'.
+	* usage.adb (Usage): Document new -gnatRe variant.
+
+2017-09-08  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_prag.adb (Analyze_Pragma, case Default_Storage_Pool):
+	Do not save the given entity in the global variable Default_Pool
+	if the pragma appears within a generic unit.
+
+2017-09-08  Bob Duff  <duff@adacore.com>
+
+	* errout.adb (Delete_Warning): Do not
+	decrement Warnings_Treated_As_Errors. This is called before
+	Warnings_Treated_As_Errors has been incremented to account for
+	this warning. Decrementing it here can lead to negative values
+	of Warnings_Treated_As_Errors, raising Constraint_Error in
+	checks-on builds, and causing the compiler to return an error
+	code in checks-off builds.
+
 2017-09-08  Arnaud Charlet  <charlet@adacore.com>
 
 	* sem_util.ads, sem_util.adb (Is_CCT_Instance): Only expect

gcc/ada/debug.adb

@@ -357,7 +357,7 @@ package body Debug is
    --       information for all internal type and object entities, as well
    --       as all user defined type and object entities including private
    --       and incomplete types. This debug switch also automatically sets
-   --       the equivalent of -gnatR3m.
+   --       the equivalent of -gnatRm.
 
    --  dB   Output debug encodings for types and variants. See Exp_Dbug for
    --       exact form of the generated output.

gcc/ada/errout.adb

@@ -1434,10 +1434,6 @@ package body Errout is
             if Errors.Table (E).Info then
                Warning_Info_Messages := Warning_Info_Messages - 1;
             end if;
-
-            if Errors.Table (E).Warn_Err then
-               Warnings_Treated_As_Errors := Warnings_Treated_As_Errors - 1;
-            end if;
          end if;
       end Delete_Warning;
 

gcc/ada/gnat1drv.adb

@@ -540,7 +540,7 @@ procedure Gnat1drv is
          Configurable_Run_Time_Mode := True;
       end if;
 
-      --  Set -gnatR3m mode if debug flag A set
+      --  Set -gnatRm mode if debug flag A set
 
       if Debug_Flag_AA then
          Back_Annotate_Rep_Info := True;

gcc/ada/opt.ads

@@ -982,6 +982,11 @@ package Opt is
    --  Set true by -gnatRm switch. Causes information on mechanisms to be
    --  included in the representation output information.
 
+   List_Representation_Info_Extended : Boolean := False;
+   --  GNAT
+   --  Set true by -gnatRe switch. Causes extended information for record types
+   --  to be included in the representation output information.
+
    List_Preprocessing_Symbols : Boolean := False;
    --  GNAT, GNATPREP
    --  Set to True if symbols for preprocessing a source are to be listed

gcc/ada/sem_prag.adb

@@ -14393,10 +14393,14 @@ package body Sem_Prag is
 
                --  Record the pool name (or null). Freeze.Freeze_Entity for an
                --  access type will use this information to set the appropriate
-               --  attributes of the access type.
+               --  attributes of the access type. If the pragma appears in a
+               --  generic unit it is ignored, given that it may refer to a
+               --  local entity.
 
+               if not Inside_A_Generic then
                   Default_Pool := Pool;
                end if;
+            end if;
          end Default_Storage_Pool;
 
          -------------

gcc/ada/switch-c.adb

@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 2001-2016, Free Software Foundation, Inc.         --
+--          Copyright (C) 2001-2017, 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- --
@@ -1143,19 +1143,24 @@ package body Switch.C is
                while Ptr <= Max loop
                   C := Switch_Chars (Ptr);
 
-                  if C in '1' .. '3' then
+                  case C is
+
+                  when '0' .. '3' =>
                      List_Representation_Info :=
                        Character'Pos (C) - Character'Pos ('0');
 
-                  elsif Switch_Chars (Ptr) = 's' then
+                  when 's' =>
                      List_Representation_Info_To_File := True;
 
-                  elsif Switch_Chars (Ptr) = 'm' then
+                  when 'm' =>
                      List_Representation_Info_Mechanisms := True;
 
-                  else
+                  when 'e' =>
+                     List_Representation_Info_Extended := True;
+
+                  when others =>
                      Bad_Switch ("-gnatR" & Switch_Chars (Ptr .. Max));
-                  end if;
+                  end case;
 
                   Ptr := Ptr + 1;
                end loop;

gcc/ada/usage.adb

@@ -392,7 +392,7 @@ begin
 
    Write_Switch_Char ("R?");
    Write_Line
-     ("List rep info (?=0/1/2/3/m for none/types/all/variable/mechanisms)");
+     ("List rep info (?=0/1/2/3/e/m for none/types/all/symbolic/ext/mech)");
    Write_Switch_Char ("R?s");
    Write_Line ("List rep info to file.rep instead of standard output");