gcc/:

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

diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index 94b99a1..99ae5ee 100644 (file)
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -4417,6 +4417,11 @@ gimplify_modify_expr_rhs (tree *expr_p, tree *from_p, tree *to_p,
                /* It's OK to use the target directly if it's being
                   initialized. */
                use_target = true;
+             else if (variably_modified_type_p (TREE_TYPE (*to_p), NULL_TREE))
+               /* Always use the target and thus RSO for variable-sized types.
+                  GIMPLE cannot deal with a variable-sized assignment
+                  embedded in a call statement.  */
+               use_target = true;
              else if (TREE_CODE (*to_p) != SSA_NAME
                      && (!is_gimple_variable (*to_p)
                          || needs_to_live_in_memory (*to_p)))