PR c++/51662

[pf3gnuchains/gcc-fork.git] / gcc / cfgexpand.c

diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 655bd61..6fa9d30 100644 (file)
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -1134,7 +1134,9 @@ expand_used_vars_for_block (tree block, bool toplevel)
 
   /* Expand all variables at this level.  */
   for (t = BLOCK_VARS (block); t ; t = DECL_CHAIN (t))
-    if (TREE_USED (t))
+    if (TREE_USED (t)
+        && ((TREE_CODE (t) != VAR_DECL && TREE_CODE (t) != RESULT_DECL)
+           || !DECL_NONSHAREABLE (t)))
       expand_one_var (t, toplevel, true);
 
   this_sv_num = stack_vars_num;
@@ -1167,6 +1169,8 @@ clear_tree_used (tree block)
 
   for (t = BLOCK_VARS (block); t ; t = DECL_CHAIN (t))
     /* if (!TREE_STATIC (t) && !DECL_EXTERNAL (t)) */
+    if ((TREE_CODE (t) != VAR_DECL && TREE_CODE (t) != RESULT_DECL)
+       || !DECL_NONSHAREABLE (t))
       TREE_USED (t) = 0;
 
   for (t = BLOCK_SUBBLOCKS (block); t ; t = BLOCK_CHAIN (t))