add NULL ptr check in emit_cond()

2007-03-10 10:37:18 -07:00
parent 46bd63819e
commit c9872b80c8
1 changed files with 6 additions and 2 deletions
@@ -1014,8 +1014,12 @@ emit_cond(slang_emit_info *emitInfo, slang_ir_node *n)
    * Need to update condition code register.
    * Next instruction is typically an IR_IF.
    */
-   /* last child expr instruction: */
-   struct prog_instruction *inst = emit(emitInfo, n->Children[0]);
+   struct prog_instruction *inst;
+
+   if (!n->Children[0])
+      return NULL;
+
+   inst = emit(emitInfo, n->Children[0]);
   if (inst) {
      /* set inst's CondUpdate flag */
      inst->CondUpdate = GL_TRUE;