2010-06-14 Jerome Lambourg <lambourg@adacore.com>

	* exp_dbug.adb (Debug_Renaming_Declaration): Do not output any debug
	declaration for VMs, as those are useless and might lead to duplicated
	local variable names in the generated code.
	* gcc-interface/Make-lang.in: Update dependdencies.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160721 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 10 insertions, 1 deletions

diff --git a/gcc/ada/exp_dbug.adb b/gcc/ada/exp_dbug.adb
index 34ae7e2b652..610ac0e5520 100644
--- a/gcc/ada/exp_dbug.adb
+++ b/gcc/ada/exp_dbug.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 1996-2008, Free Software Foundation, Inc.         --
+--          Copyright (C) 1996-2009, 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- --
@@ -38,6 +38,7 @@ with Sinfo;    use Sinfo;
 with Stand;    use Stand;
 with Stringt;  use Stringt;
 with Table;
+with Targparm; use Targparm;
 with Tbuild;   use Tbuild;
 with Urealp;   use Urealp;
 
@@ -341,6 +342,14 @@ package body Exp_Dbug is
          return Empty;
       end if;
 
+      --  Do not output those local variables in VM case, as this does not
+      --  help debugging (they are just unused), and might lead to duplicated
+      --  local variable names.
+
+      if VM_Target /= No_VM then
+         return Empty;
+      end if;
+
       --  Get renamed entity and compute suffix
 
       Name_Len := 0;