83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <memory>
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#include "shader_recompiler/frontend/maxwell/program.h"
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#include "shader_recompiler/frontend/maxwell/termination_code.h"
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#include "shader_recompiler/frontend/maxwell/translate/translate.h"
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#include "shader_recompiler/ir_opt/passes.h"
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namespace Shader::Maxwell {
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namespace {
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void TranslateCode(Environment& env, const Flow::Function& cfg_function, IR::Function& function,
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std::span<IR::Block*> block_map, IR::Block* block_memory) {
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const size_t num_blocks{cfg_function.blocks.size()};
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function.blocks.reserve(num_blocks);
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for (const Flow::BlockId block_id : cfg_function.blocks) {
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const Flow::Block& flow_block{cfg_function.blocks_data[block_id]};
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function.blocks.emplace_back(std::construct_at(block_memory, Translate(env, flow_block)));
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block_map[flow_block.id] = function.blocks.back().get();
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++block_memory;
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}
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}
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void EmitTerminationInsts(const Flow::Function& cfg_function,
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std::span<IR::Block* const> block_map) {
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for (const Flow::BlockId block_id : cfg_function.blocks) {
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const Flow::Block& flow_block{cfg_function.blocks_data[block_id]};
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EmitTerminationCode(flow_block, block_map);
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}
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}
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void TranslateFunction(Environment& env, const Flow::Function& cfg_function, IR::Function& function,
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IR::Block* block_memory) {
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std::vector<IR::Block*> block_map;
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block_map.resize(cfg_function.blocks_data.size());
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TranslateCode(env, cfg_function, function, block_map, block_memory);
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EmitTerminationInsts(cfg_function, block_map);
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}
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} // Anonymous namespace
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Program::Program(Environment& env, const Flow::CFG& cfg) {
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functions.reserve(cfg.Functions().size());
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for (const Flow::Function& cfg_function : cfg.Functions()) {
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TranslateFunction(env, cfg_function, functions.emplace_back(),
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block_alloc_pool.allocate(cfg_function.blocks.size()));
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}
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std::ranges::for_each(functions, Optimization::SsaRewritePass);
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for (IR::Function& function : functions) {
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Optimization::Invoke(Optimization::DeadCodeEliminationPass, function);
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Optimization::Invoke(Optimization::IdentityRemovalPass, function);
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// Optimization::Invoke(Optimization::VerificationPass, function);
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}
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}
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std::string DumpProgram(const Program& program) {
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size_t index{0};
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std::map<const IR::Inst*, size_t> inst_to_index;
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std::map<const IR::Block*, size_t> block_to_index;
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for (const IR::Function& function : program.functions) {
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for (const auto& block : function.blocks) {
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block_to_index.emplace(block.get(), index);
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++index;
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}
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}
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std::string ret;
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for (const IR::Function& function : program.functions) {
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ret += fmt::format("Function\n");
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for (const auto& block : function.blocks) {
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ret += IR::DumpBlock(*block, block_to_index, inst_to_index, index) + '\n';
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}
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}
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return ret;
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}
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} // namespace Shader::Maxwell
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