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* Copyright © 2019 Red Hat
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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/* Pass to find libclc functions from a clc library shader and inline
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* them into a user shader.
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* This pass should only be called once, but it also has to iterate
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* itself to make sure all instances are lowered, before validation.
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#include "nir_builder.h"
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#include "nir_spirv.h"
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lower_clc_call_instr(nir_instr *instr, nir_builder *b,
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const nir_shader *clc_shader,
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struct hash_table *copy_vars)
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nir_call_instr *call = nir_instr_as_call(instr);
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nir_function *func = NULL;
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if (!call->callee->name)
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nir_foreach_function(function, clc_shader) {
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if (strcmp(function->name, call->callee->name) == 0) {
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if (!func || !func->impl) {
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nir_ssa_def **params = rzalloc_array(b->shader, nir_ssa_def*, call->num_params);
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for (unsigned i = 0; i < call->num_params; i++) {
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params[i] = nir_ssa_for_src(b, call->params[i],
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call->callee->params[i].num_components);
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b->cursor = nir_instr_remove(&call->instr);
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nir_inline_function_impl(b, func->impl, params, copy_vars);
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nir_lower_libclc_impl(nir_function_impl *impl,
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const nir_shader *clc_shader,
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struct hash_table *copy_vars)
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nir_builder_init(&b, impl);
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bool progress = false;
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nir_foreach_block_safe(block, impl) {
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nir_foreach_instr_safe(instr, block) {
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if (instr->type == nir_instr_type_call)
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progress |= lower_clc_call_instr(instr, &b, clc_shader, copy_vars);
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nir_index_ssa_defs(impl);
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nir_index_local_regs(impl);
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nir_metadata_preserve(impl, nir_metadata_none);
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nir_metadata_preserve(impl, nir_metadata_all);
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nir_lower_libclc(nir_shader *shader,
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const nir_shader *clc_shader)
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void *ra_ctx = ralloc_context(NULL);
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struct hash_table *copy_vars = _mesa_pointer_hash_table_create(ra_ctx);
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bool progress = false, overall_progress = false;
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/* do progress passes inside the pass */
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nir_foreach_function(function, shader) {
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progress |= nir_lower_libclc_impl(function->impl, clc_shader, copy_vars);
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overall_progress |= progress;
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return overall_progress;
added
removed
src/compiler/spirv/nir_lower_libclc.c
