diff options
| author | Bas Nieuwenhuizen <[email protected]> | 2017-02-09 00:12:10 +0100 |
|---|---|---|
| committer | Timothy Arceri <[email protected]> | 2017-10-18 09:19:35 +1100 |
| commit | 06f05040eb73382e9b1afb155a4ff12f3b20ed49 (patch) | |
| tree | 0b183c477812fd6f0cc811276c82b996ba78ae0e /src/amd/vulkan/radv_pipeline.c | |
| parent | dbbf10541b134253a576da23ea6b3c6a5afc0dc8 (diff) | |
radv: Link shaders.
Here we make use of NIR the linking helpers to remove unused
varyings.
Sascha Willems demo results:
computecullandlod 39 -> 41 fps
pipelines ~6100 -> ~6200 fps
Signed-off-by: Bas Nieuwenhuizen <[email protected]>
Signed-off-by: Timothy Arceri <[email protected]>
Acked-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/amd/vulkan/radv_pipeline.c')
| -rw-r--r-- | src/amd/vulkan/radv_pipeline.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c index e95925fda58..559862678e7 100644 --- a/src/amd/vulkan/radv_pipeline.c +++ b/src/amd/vulkan/radv_pipeline.c @@ -1522,6 +1522,46 @@ static void calculate_ps_inputs(struct radv_pipeline *pipeline) pipeline->graphics.ps_input_cntl_num = ps_offset; } +static void +radv_link_shaders(struct radv_pipeline *pipeline, nir_shader **shaders) +{ + nir_shader* ordered_shaders[MESA_SHADER_STAGES]; + int shader_count = 0; + + if(shaders[MESA_SHADER_FRAGMENT]) { + ordered_shaders[shader_count++] = shaders[MESA_SHADER_FRAGMENT]; + } + if(shaders[MESA_SHADER_GEOMETRY]) { + ordered_shaders[shader_count++] = shaders[MESA_SHADER_GEOMETRY]; + } + if(shaders[MESA_SHADER_TESS_EVAL]) { + ordered_shaders[shader_count++] = shaders[MESA_SHADER_TESS_EVAL]; + } + if(shaders[MESA_SHADER_TESS_CTRL]) { + ordered_shaders[shader_count++] = shaders[MESA_SHADER_TESS_CTRL]; + } + if(shaders[MESA_SHADER_VERTEX]) { + ordered_shaders[shader_count++] = shaders[MESA_SHADER_VERTEX]; + } + + for (int i = 1; i < shader_count; ++i) { + nir_remove_dead_variables(ordered_shaders[i], + nir_var_shader_out); + nir_remove_dead_variables(ordered_shaders[i - 1], + nir_var_shader_in); + + bool progress = nir_remove_unused_varyings(ordered_shaders[i], + ordered_shaders[i - 1]); + + if (progress) { + nir_lower_global_vars_to_local(ordered_shaders[i]); + radv_optimize_nir(ordered_shaders[i]); + nir_lower_global_vars_to_local(ordered_shaders[i - 1]); + radv_optimize_nir(ordered_shaders[i - 1]); + } + } +} + static void radv_create_shaders(struct radv_pipeline *pipeline, struct radv_device *device, @@ -1588,6 +1628,8 @@ void radv_create_shaders(struct radv_pipeline *pipeline, nir_lower_tes_patch_vertices(nir[MESA_SHADER_TESS_EVAL], nir[MESA_SHADER_TESS_CTRL]->info.tess.tcs_vertices_out); } + radv_link_shaders(pipeline, nir); + if (nir[MESA_SHADER_FRAGMENT]) { pipeline->shaders[MESA_SHADER_FRAGMENT] = radv_shader_variant_create(device, modules[MESA_SHADER_FRAGMENT], nir[MESA_SHADER_FRAGMENT], |