[Mesa-dev] [PATCH 9/9] radv: enable nir component packing

[Timothy Arceri]

SaschaWillems Vulkan demo tessellation:

~4000fps -> ~4600fps

Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
---
 src/amd/vulkan/radv_pipeline.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 322cd7951b2..ec7c2393fc9 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -1815,6 +1815,7 @@ void radv_create_shaders(struct radv_pipeline *pipeline,
 		last = i;
 	}
 
+	int prev = -1;
 	for (unsigned i = 0; i < MESA_SHADER_STAGES; ++i) {
 		const VkPipelineShaderStageCreateInfo *stage = pStages[i];
 
@@ -1845,6 +1846,11 @@ void radv_create_shaders(struct radv_pipeline *pipeline,
 			nir_lower_io_to_scalar_early(nir[i], mask);
 			radv_optimize_nir(nir[i]);
 		}
+
+		if (prev != -1) {
+			nir_compact_varyings(nir[prev], nir[i], true);
+		}
+		prev = i;
 	}
 
 	if (nir[MESA_SHADER_TESS_CTRL]) {
-- 
2.13.6