anv: Enable the guardband clip test

In workloads where there is a lot of geometry drawn that crosses over
the edge of the viewport, this should substantially improve clipper
performance.  Not really sure why it's taken 3 years to turn it on but
we never got around to it.

Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index 6b64f7ea8c7..e35bb5e3405 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -1077,6 +1077,7 @@ emit_3dstate_clip(struct anv_pipeline *pipeline,
       clip.EarlyCullEnable          = true;
       clip.APIMode                  = APIMODE_D3D,
       clip.ViewportXYClipTestEnable = true;
+      clip.GuardbandClipTestEnable  = true;
 
 #if GEN_GEN >= 8
       clip.VertexSubPixelPrecisionSelect = _8Bit;