i965/vec4: add dst_null_df()

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index 2c5f75e..625ab9e 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -79,6 +79,11 @@ public:
       return dst_reg(brw_null_reg());
    }
 
+   dst_reg dst_null_df()
+   {
+      return dst_reg(retype(brw_null_reg(), BRW_REGISTER_TYPE_DF));
+   }
+
    dst_reg dst_null_d()
    {
       return dst_reg(retype(brw_null_reg(), BRW_REGISTER_TYPE_D));