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intel/cs: Rework the way thread local ID is handled

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Previously, brw_nir_lower_intrinsics added the param and then emitted a
load_uniform intrinsic to load it directly.  This commit switches things
over to use a specific NIR intrinsic for the thread id.  The one thing I
don't like about this approach is that we have to copy thread_local_id
over to the new visitor in import_uniforms.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Jason Ekstrand
2017-09-29 17:57:32 -07:00
parent 25f7453c9e
commit 80ddfab2f5
6 changed files with 32 additions and 46 deletions
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src/intel/compiler/brw_fs.cpp
+2 -2
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@@ -996,6 +996,7 @@ fs_visitor::import_uniforms(fs_visitor *v)
this->push_constant_loc = v->push_constant_loc;
this->pull_constant_loc = v->pull_constant_loc;
this->uniforms = v->uniforms;
this->thread_local_id = v->thread_local_id;
}
void
@@ -6834,8 +6835,7 @@ brw_compile_cs(const struct brw_compiler *compiler, void *log_data,
{
nir_shader *shader = nir_shader_clone(mem_ctx, src_shader);
shader = brw_nir_apply_sampler_key(shader, compiler, &key->tex, true);
brw_nir_lower_cs_intrinsics(shader, prog_data);
brw_nir_lower_cs_intrinsics(shader);
shader = brw_postprocess_nir(shader, compiler, true);
prog_data->local_size[0] = shader->info.cs.local_size[0];