73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
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// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <fstream>
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#include "shader_recompiler/backend/spirv/emit_spirv.h"
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#include "shader_recompiler/frontend/control_flow_graph.h"
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#include "shader_recompiler/frontend/decode.h"
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#include "shader_recompiler/frontend/structured_control_flow.h"
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#include "shader_recompiler/ir/passes/passes.h"
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#include "shader_recompiler/ir/post_order.h"
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#include "shader_recompiler/recompiler.h"
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namespace Shader {
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IR::BlockList GenerateBlocks(const IR::AbstractSyntaxList& syntax_list) {
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size_t num_syntax_blocks{};
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for (const auto& node : syntax_list) {
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if (node.type == IR::AbstractSyntaxNode::Type::Block) {
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++num_syntax_blocks;
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}
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}
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IR::BlockList blocks;
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blocks.reserve(num_syntax_blocks);
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u32 order_index{};
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for (const auto& node : syntax_list) {
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if (node.type == IR::AbstractSyntaxNode::Type::Block) {
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blocks.push_back(node.data.block);
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}
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}
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return blocks;
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}
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std::vector<u32> TranslateProgram(ObjectPool<IR::Inst>& inst_pool,
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ObjectPool<IR::Block>& block_pool, Stage stage,
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std::span<const u32> token) {
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// Ensure first instruction is expected.
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constexpr u32 token_mov_vcchi = 0xBEEB03FF;
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ASSERT_MSG(token[0] == token_mov_vcchi, "First instruction is not s_mov_b32 vcc_hi, #imm");
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Gcn::GcnCodeSlice slice(token.data(), token.data() + token.size());
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Gcn::GcnDecodeContext decoder;
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// Decode and save instructions
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IR::Program program;
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program.ins_list.reserve(token.size());
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while (!slice.atEnd()) {
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program.ins_list.emplace_back(decoder.decodeInstruction(slice));
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}
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// Create control flow graph
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ObjectPool<Gcn::Block> gcn_block_pool{64};
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Gcn::CFG cfg{gcn_block_pool, program.ins_list};
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// Structurize control flow graph and create program.
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program.syntax_list = Shader::Gcn::BuildASL(inst_pool, block_pool, cfg, stage);
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program.blocks = GenerateBlocks(program.syntax_list);
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program.post_order_blocks = Shader::IR::PostOrder(program.syntax_list.front());
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program.stage = stage;
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// Run optimization passes
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Shader::Optimization::SsaRewritePass(program.post_order_blocks);
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Shader::Optimization::ConstantPropagationPass(program.post_order_blocks);
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Shader::Optimization::IdentityRemovalPass(program.blocks);
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// Shader::Optimization::ResourceTrackingPass(program.post_order_blocks);
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Shader::Optimization::DeadCodeEliminationPass(program.blocks);
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// TODO: Pass profile from vulkan backend
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const auto code = Backend::SPIRV::EmitSPIRV(Profile{}, program);
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return code;
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}
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} // namespace Shader
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