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c5a9270109
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8295>
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*
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* Copyright (c) 2020 Intel Corporation
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* Copyright (c) 2020 Collabora Ltd
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*
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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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*
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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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* Software.
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*
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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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* IN THE SOFTWARE.
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*/
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/*
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* Lower scoped barriers embedding a control barrier (execusion_scope != NONE)
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* to scoped_barriers-without-control-barrier + control_barrier.
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*/
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#include "brw_nir.h"
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#include "compiler/nir/nir_builder.h"
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static bool
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lower_impl(nir_function_impl *impl)
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{
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nir_builder b;
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nir_builder_init(&b, impl);
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bool progress = false;
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nir_foreach_block(block, impl) {
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nir_foreach_instr_safe(instr, block) {
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if (instr->type != nir_instr_type_intrinsic)
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continue;
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nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
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if (intr->intrinsic != nir_intrinsic_scoped_barrier ||
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nir_intrinsic_execution_scope(intr) == NIR_SCOPE_NONE)
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continue;
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if (nir_intrinsic_execution_scope(intr) == NIR_SCOPE_WORKGROUP) {
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b.cursor = nir_after_instr(&intr->instr);
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nir_control_barrier(&b);
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}
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nir_intrinsic_set_execution_scope(intr, NIR_SCOPE_NONE);
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progress = true;
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}
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}
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if (progress) {
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nir_metadata_preserve(impl, nir_metadata_block_index |
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nir_metadata_dominance);
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} else {
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nir_metadata_preserve(impl, nir_metadata_all);
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}
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return progress;
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}
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bool
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brw_nir_lower_scoped_barriers(nir_shader *nir)
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{
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bool progress = false;
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nir_foreach_function(function, nir) {
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if (function->impl)
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progress |= lower_impl(function->impl);
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}
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return progress;
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}
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