Mesa (master): i965: Implement nir_intrinsic_load_primitive.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: c5ae34f38f239d346090212a9f33a947a3b7642e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c5ae34f38f239d346090212a9f33a947a3b7642e

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Wed Sep 23 18:59:57 2015 -0700

i965: Implement nir_intrinsic_load_primitive.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Kristian Høgsberg <krh at bitplanet.net>

---

 src/mesa/drivers/dri/i965/brw_fs_nir.cpp |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index 792663f..123e86e 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -30,6 +30,7 @@
 #include "brw_fs_surface_builder.h"
 #include "brw_nir.h"
 #include "brw_fs_surface_builder.h"
+#include "brw_vec4_gs_visitor.h"
 
 using namespace brw;
 using namespace brw::surface_access;
@@ -1367,6 +1368,13 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
    case nir_intrinsic_load_vertex_id:
       unreachable("should be lowered by lower_vertex_id()");
 
+   case nir_intrinsic_load_primitive_id:
+      assert(stage == MESA_SHADER_GEOMETRY);
+      assert(((struct brw_gs_prog_data *)prog_data)->include_primitive_id);
+      bld.MOV(retype(dest, BRW_REGISTER_TYPE_UD),
+              retype(fs_reg(brw_vec8_grf(2, 0)), BRW_REGISTER_TYPE_UD));
+      break;
+
    case nir_intrinsic_load_vertex_id_zero_base:
    case nir_intrinsic_load_base_vertex:
    case nir_intrinsic_load_instance_id: