Backport from mainline

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-live.c

diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c
index b8a056e..80ab425 100644 (file)
--- a/gcc/tree-ssa-live.c
+++ b/gcc/tree-ssa-live.c
@@ -1,5 +1,5 @@
 /* Liveness for SSA trees.
-   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
    Contributed by Andrew MacLeod <amacleod@redhat.com>
 
@@ -451,11 +451,8 @@ remove_unused_scope_block_p (tree scope)
       else if (TREE_CODE (*t) == VAR_DECL && DECL_HAS_VALUE_EXPR_P (*t))
        unused = false;
 
-      /* Remove everything we don't generate debug info for.
-        Don't remove larger vars though, because BLOCK_VARS are
-        used also during expansion to determine which variables
-        might share stack space.  */
-      else if (DECL_IGNORED_P (*t) && is_gimple_reg (*t))
+      /* Remove everything we don't generate debug info for.  */
+      else if (DECL_IGNORED_P (*t))
        {
          *t = DECL_CHAIN (*t);
          next = t;