From 53dfd5d87074cefb9258fbe4dbc916fd18597116 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Thu, 13 Aug 2009 12:42:52 -0600
Subject: tnl: if NAN_CHECK is enabled, also assert that pos.x != 0

---
 src/mesa/tnl/t_vb_program.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c
index 66c5e13729..dc954bcba1 100644
--- a/src/mesa/tnl/t_vb_program.c
+++ b/src/mesa/tnl/t_vb_program.c
@@ -386,6 +386,9 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
 #endif
          COPY_4V(store->results[attr].data[i], machine.Outputs[attr]);
       }
+#ifdef NAN_CHECK
+      ASSERT(machine.Outputs[0][3] != 0.0F);
+#endif
 #if 0
       printf("HPOS: %f %f %f %f\n",
              machine.Outputs[0][0], 
-- 
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