[Mesa-dev] [PATCH 3/6] i965/vs: Convert gen6 userclip handling to new generators.

[Eric Anholt]

This DP4 had one of its operands missing, so we were generating
garbage clip distances.  Using the per-opcode instruction generators
made it obvious.
---
 src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 68c0ed9..7334a38 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -1854,9 +1854,9 @@ vec4_visitor::emit_vue_header_gen6(int header_mrf)
 	 else
 	    m = brw_message_reg(header_mrf + 1);
 
-	 emit(BRW_OPCODE_DP4,
-	      dst_reg(brw_writemask(m, 1 << (i & 3))),
-	      src_reg(c->userplane[i]));
+	 emit(DP4(dst_reg(brw_writemask(m, 1 << (i & 3))),
+		  src_reg(output_reg[VERT_RESULT_HPOS]),
+		  src_reg(c->userplane[i])));
       }
       header_mrf += 2;
    }
-- 
1.7.5.4