Mesa (master): tnl: if NAN_CHECK is enabled, also assert that pos.x != 0

[Brian Paul]

Module: Mesa
Branch: master
Commit: 53dfd5d87074cefb9258fbe4dbc916fd18597116
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=53dfd5d87074cefb9258fbe4dbc916fd18597116

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Aug 13 12:42:52 2009 -0600

tnl: if NAN_CHECK is enabled, also assert that pos.x != 0

---

 src/mesa/tnl/t_vb_program.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c
index 66c5e13..dc954bc 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],