Not much effect on dota2/talos, but positive on deferred.
Signed-off-by: Bas Nieuwenhuizen <ba...@google.com>
---
src/amd/vulkan/radv_pipeline.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index d6989137a55..7340675915f 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -61,6 +61,7 @@ static const struct nir_shader_compiler_options nir_options =
{
.lower_unpack_unorm_4x8 = true,
.lower_extract_byte = true,
.lower_extract_word = true,
+ .max_unroll_iterations = 32
};
VkResult radv_CreateShaderModule(
@@ -152,6 +153,12 @@ radv_optimize_nir(struct nir_shader *shader)
NIR_PASS(progress, shader, nir_copy_prop);
NIR_PASS(progress, shader, nir_opt_remove_phis);
NIR_PASS(progress, shader, nir_opt_dce);
+ if (nir_opt_trivial_continues(shader)) {
+ progress = true;
+ NIR_PASS(progress, shader, nir_copy_prop);
+ NIR_PASS(progress, shader, nir_opt_dce);
+ }
+ NIR_PASS(progress, shader, nir_opt_if);
NIR_PASS(progress, shader, nir_opt_dead_cf);
NIR_PASS(progress, shader, nir_opt_cse);
NIR_PASS(progress, shader, nir_opt_peephole_select, 8);
@@ -159,6 +166,9 @@ radv_optimize_nir(struct nir_shader *shader)
NIR_PASS(progress, shader, nir_opt_constant_folding);
NIR_PASS(progress, shader, nir_opt_undef);
NIR_PASS(progress, shader, nir_opt_conditional_discard);
+ if (shader->options->max_unroll_iterations) {
+ NIR_PASS(progress, shader, nir_opt_loop_unroll, 0);
+ }
} while (progress);
}
--
2.12.2
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