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@@ -1,90 +0,0 @@
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/*
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* Copyright (C) 2020-2021 Collabora, Ltd.
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* Copyright © 2020 Valve Corporation
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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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#include "compiler/nir/nir.h"
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#include "compiler/nir/nir_builder.h"
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#include "midgard_nir.h"
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static bool
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pass(nir_builder *b, nir_instr *instr, UNUSED void *data)
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{
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if (instr->type != nir_instr_type_intrinsic)
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return false;
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nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
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switch (intr->intrinsic) {
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case nir_intrinsic_global_atomic_add:
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case nir_intrinsic_global_atomic_and:
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case nir_intrinsic_global_atomic_comp_swap:
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case nir_intrinsic_global_atomic_exchange:
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case nir_intrinsic_global_atomic_fadd:
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case nir_intrinsic_global_atomic_fcomp_swap:
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case nir_intrinsic_global_atomic_fmax:
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case nir_intrinsic_global_atomic_fmin:
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case nir_intrinsic_global_atomic_imax:
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case nir_intrinsic_global_atomic_imin:
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case nir_intrinsic_global_atomic_or:
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case nir_intrinsic_global_atomic_umax:
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case nir_intrinsic_global_atomic_umin:
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case nir_intrinsic_global_atomic_xor:
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case nir_intrinsic_image_atomic_add:
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case nir_intrinsic_image_atomic_and:
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case nir_intrinsic_image_atomic_comp_swap:
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case nir_intrinsic_image_atomic_dec_wrap:
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case nir_intrinsic_image_atomic_exchange:
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case nir_intrinsic_image_atomic_fadd:
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case nir_intrinsic_image_atomic_imax:
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case nir_intrinsic_image_atomic_imin:
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case nir_intrinsic_image_atomic_inc_wrap:
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case nir_intrinsic_image_atomic_or:
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case nir_intrinsic_image_atomic_umax:
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case nir_intrinsic_image_atomic_umin:
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case nir_intrinsic_image_atomic_xor:
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case nir_intrinsic_image_store:
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case nir_intrinsic_store_global:
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break;
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default:
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return false;
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}
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b->cursor = nir_before_instr(instr);
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nir_ssa_def *helper = nir_load_helper_invocation(b, 1);
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nir_push_if(b, nir_inot(b, helper));
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nir_instr_remove(instr);
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nir_builder_instr_insert(b, instr);
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nir_pop_if(b, NULL);
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return true;
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}
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bool
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midgard_nir_lower_helper_writes(nir_shader *shader)
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{
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if (shader->info.stage != MESA_SHADER_FRAGMENT)
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return false;
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return nir_shader_instructions_pass(shader, pass, nir_metadata_none, NULL);
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}
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