gimple-fold.c (canonicalize_constructor_val): Make sure we have referenced vars setup...

2011-11-08  Richard Guenther  <rguenther@suse.de>

	* gimple-fold.c (canonicalize_constructor_val): Make sure
	we have referenced vars setup before adding to them.

From-SVN: r181155

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e6816e58628d1228d3335ae599b059880d3603fc..c1287513256c0c39f108de46276a85237f2cee37 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-08  Richard Guenther  <rguenther@suse.de>
+
+       * gimple-fold.c (canonicalize_constructor_val): Make sure
+       we have referenced vars setup before adding to them.
+
 2011-11-07  Richard Henderson  <rth@redhat.com>
            Aldy Hernandez  <aldyh@redhat.com>
            Andrew MacLeod  <amacleod@redhat.com>

diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c
index 53bfb9641f884bba390493f0c77b0741aa9a7c1a..08b7ccc83dbd062e49b2eec80e59a6e0b4652852 100644 (file)
--- a/gcc/gimple-fold.c
+++ b/gcc/gimple-fold.c
@@ -137,7 +137,8 @@ canonicalize_constructor_val (tree cval)
              || TREE_CODE (base) == FUNCTION_DECL)
          && !can_refer_decl_in_current_unit_p (base))
        return NULL_TREE;
-      if (cfun && base && TREE_CODE (base) == VAR_DECL)
+      if (cfun && gimple_referenced_vars (cfun)
+         && base && TREE_CODE (base) == VAR_DECL)
        add_referenced_var (base);
       /* Fixup types in global initializers.  */
       if (TREE_TYPE (TREE_TYPE (cval)) != TREE_TYPE (TREE_OPERAND (cval, 0)))