fixed release build

[r17251]

diff --git a/ir/ir/irvrfy.c b/ir/ir/irvrfy.c
index a3586e6..39a87d5 100644 (file)
--- a/ir/ir/irvrfy.c
+++ b/ir/ir/irvrfy.c
@@ -2031,7 +2031,10 @@ int irg_verify(ir_graph *irg, unsigned flags) {
 
        rem = current_ir_graph;
        current_ir_graph = irg;
-       last_irg_error = NULL;
+
+#ifndef NDEBUG
+    last_irg_error = NULL;
+#endif /* NDEBUG */
 
        assert(get_irg_pinned(irg) == op_pin_state_pinned && "Verification need pinned graph");