* config/arm/lib1funcs.asm (ARM_FUNC_ALIAS): Also alias _L__name.

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

diff --git a/gcc/c-common.c b/gcc/c-common.c
index c3dc4ea..09373dd 100644 (file)
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -2711,7 +2711,10 @@ c_common_get_alias_set (tree t)
            NULL);
   slot = htab_find_slot (type_hash_table, t, INSERT);
   if (*slot != NULL)
-    return TYPE_ALIAS_SET ((tree)*slot);
+    {
+      TYPE_ALIAS_SET (t) = TYPE_ALIAS_SET ((tree)*slot);
+      return TYPE_ALIAS_SET ((tree)*slot);
+    }
   else
     /* Our caller will assign and record (in t) a new alias set; all we need
        to do is remember t in the hash table.  */
@@ -5378,6 +5381,9 @@ c_warn_unused_result (tree *top_p)
       break;
 
     case CALL_EXPR:
+      if (TREE_USED (t))
+       break;
+
       /* This is a naked call, as opposed to a CALL_EXPR nested inside
         a MODIFY_EXPR.  All calls whose value is ignored should be
         represented like this.  Look for the attribute.  */