(setup_one_parameter): Add comment to last change.

From-SVN: r106274

diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index b17a5975dc480f5f5c2f538a74348e3048a92f58..270389bc26567f74eeb8140e06622d1481490444 100644 (file)
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -1159,6 +1159,9 @@ setup_one_parameter (inline_data *id, tree p, tree value, tree fn,
          && (!is_gimple_cast (rhs)
              || !is_gimple_val (TREE_OPERAND (rhs, 0))))
        gimplify_stmt (&init_stmt);
+
+      /* If VAR represents a zero-sized variable, it's possible that the
+        assignment statment may result in no gimple statements.  */
       if (init_stmt)
         bsi_insert_after (&bsi, init_stmt, BSI_NEW_STMT);
     }