diff options
| author | Timothy Arceri <[email protected]> | 2017-10-18 13:46:44 +1100 |
|---|---|---|
| committer | Timothy Arceri <[email protected]> | 2017-10-25 17:02:40 +1100 |
| commit | 767ca5bdf18e1590d97728144f13223db26782da (patch) | |
| tree | 5004140ee9eb6ecea6896e39422e4f13b2d9d48d /src/amd/vulkan | |
| parent | 8ebaf8192a78cd4beb2014cd0765e1032e06b2e0 (diff) | |
radv: enable lower to scalar nir pass
This will allow dead components of varyings to be removed.
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src/amd/vulkan')
| -rw-r--r-- | src/amd/vulkan/radv_pipeline.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c index d6b33a5327e..926e3788cc2 100644 --- a/src/amd/vulkan/radv_pipeline.c +++ b/src/amd/vulkan/radv_pipeline.c @@ -1756,6 +1756,17 @@ void radv_create_shaders(struct radv_pipeline *pipeline, modules[MESA_SHADER_FRAGMENT] = &fs_m; } + /* Determine first and last stage. */ + unsigned first = MESA_SHADER_STAGES; + unsigned last = 0; + for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) { + if (!pStages[i]) + continue; + if (first == MESA_SHADER_STAGES) + first = i; + last = i; + } + for (unsigned i = 0; i < MESA_SHADER_STAGES; ++i) { const VkPipelineShaderStageCreateInfo *stage = pStages[i]; @@ -1766,6 +1777,7 @@ void radv_create_shaders(struct radv_pipeline *pipeline, stage ? stage->pName : "main", i, stage ? stage->pSpecializationInfo : NULL); pipeline->active_stages |= mesa_to_vk_shader_stage(i); + /* We don't want to alter meta shaders IR directly so clone it * first. */ @@ -1773,6 +1785,18 @@ void radv_create_shaders(struct radv_pipeline *pipeline, nir[i] = nir_shader_clone(NULL, nir[i]); } + if (first != last) { + nir_variable_mode mask = 0; + + if (i != first) + mask = mask | nir_var_shader_in; + + if (i != last) + mask = mask | nir_var_shader_out; + + nir_lower_io_to_scalar_early(nir[i], mask); + radv_optimize_nir(nir[i]); + } } if (nir[MESA_SHADER_TESS_CTRL]) { |