diff -r 79ac274d1cc4 -r 4733f662362a stage4/generate_c/generate_c_il.cc
--- a/stage4/generate_c/generate_c_il.cc	Mon Feb 20 19:44:40 2012 +0000
+++ b/stage4/generate_c/generate_c_il.cc	Tue Feb 21 17:39:57 2012 +0000
@@ -1556,6 +1556,12 @@
   return NULL;
 }
 
+// SYM_REF1(il_simple_instruction_c, il_simple_instruction, symbol_c *prev_il_instruction;)
+void *visit(il_simple_instruction_c *symbol)	{
+  return symbol->il_simple_instruction->accept(*this);
+}
+
+
 /* | il_initial_param_list il_param_instruction */
 // SYM_LIST(il_param_list_c)
 void *visit(il_param_list_c *symbol) {ERROR; return NULL;} // should never get called!