From 9115fa1d132b3ed38180f05c303f9190cde23878 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Wed, 28 Oct 2015 21:11:46 -0700
Subject: [PATCH] i965/cfg: Handle no-idom case in cfg_t::dump_domtree().

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---
 src/mesa/drivers/dri/i965/brw_cfg.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_cfg.cpp b/src/mesa/drivers/dri/i965/brw_cfg.cpp
index 10bcd4b..5d46615 100644
--- a/src/mesa/drivers/dri/i965/brw_cfg.cpp
+++ b/src/mesa/drivers/dri/i965/brw_cfg.cpp
@@ -528,7 +528,9 @@ cfg_t::dump_domtree()
 {
    printf("digraph DominanceTree {\n");
    foreach_block(block, this) {
-      printf("\t%d -> %d\n", block->idom->num, block->num);
+      if (block->idom) {
+         printf("\t%d -> %d\n", block->idom->num, block->num);
+      }
    }
    printf("}\n");
 }
-- 
2.7.4