Mesa (master): mesa: added NaN checking code (disabled)

[Brian Paul]

Module: Mesa
Branch: master
Commit: 92009543705918760df92abb0cbb8cad68875e72
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=92009543705918760df92abb0cbb8cad68875e72

Author: Brian Paul <brianp at vmware.com>
Date:   Wed Jun  3 15:43:53 2009 -0600

mesa: added NaN checking code (disabled)

---

 src/mesa/shader/prog_execute.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index 2b7237e..f4beb9a 100644
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -225,6 +225,13 @@ fetch_vector4(const struct prog_src_register *source,
       result[2] = -result[2];
       result[3] = -result[3];
    }
+
+#ifdef NAN_CHECK
+   assert(!IS_INF_OR_NAN(result[0]));
+   assert(!IS_INF_OR_NAN(result[0]));
+   assert(!IS_INF_OR_NAN(result[0]));
+   assert(!IS_INF_OR_NAN(result[0]));
+#endif
 }
 
 
@@ -479,6 +486,13 @@ store_vector4(const struct prog_instruction *inst,
       }
    }
 
+#ifdef NAN_CHECK
+   assert(!IS_INF_OR_NAN(value[0]));
+   assert(!IS_INF_OR_NAN(value[0]));
+   assert(!IS_INF_OR_NAN(value[0]));
+   assert(!IS_INF_OR_NAN(value[0]));
+#endif
+
    if (writeMask & WRITEMASK_X)
       dst[0] = value[0];
    if (writeMask & WRITEMASK_Y)