ReinUsesLisp
5 years ago
committed by
ameerj
ameerj
33 changed files with 1346 additions and 590 deletions
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2externals/sirit
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4src/shader_recompiler/CMakeLists.txt
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45src/shader_recompiler/backend/spirv/emit_spirv.cpp
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18src/shader_recompiler/backend/spirv/emit_spirv.h
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8src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
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25src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp
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12src/shader_recompiler/backend/spirv/emit_spirv_undefined.cpp
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64src/shader_recompiler/frontend/ir/basic_block.cpp
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40src/shader_recompiler/frontend/ir/basic_block.h
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14src/shader_recompiler/frontend/ir/condition.cpp
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2src/shader_recompiler/frontend/ir/condition.h
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2src/shader_recompiler/frontend/ir/function.h
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43src/shader_recompiler/frontend/ir/ir_emitter.cpp
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23src/shader_recompiler/frontend/ir/ir_emitter.h
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4src/shader_recompiler/frontend/ir/microinstruction.cpp
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16src/shader_recompiler/frontend/ir/opcodes.inc
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742src/shader_recompiler/frontend/ir/structured_control_flow.cpp
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22src/shader_recompiler/frontend/ir/structured_control_flow.h
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426src/shader_recompiler/frontend/maxwell/control_flow.cpp
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77src/shader_recompiler/frontend/maxwell/control_flow.h
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12src/shader_recompiler/frontend/maxwell/location.h
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69src/shader_recompiler/frontend/maxwell/program.cpp
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2src/shader_recompiler/frontend/maxwell/program.h
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86src/shader_recompiler/frontend/maxwell/termination_code.cpp
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17src/shader_recompiler/frontend/maxwell/termination_code.h
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2src/shader_recompiler/frontend/maxwell/translate/impl/integer_shift_left.cpp
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17src/shader_recompiler/frontend/maxwell/translate/translate.cpp
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7src/shader_recompiler/frontend/maxwell/translate/translate.h
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50src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
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24src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp
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4src/shader_recompiler/ir_opt/verification_pass.cpp
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29src/shader_recompiler/main.cpp
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28src/shader_recompiler/shader_info.h
@ -1 +1 @@ |
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Subproject commit 1f7b70730d610cfbd5099ab93dd38ec8a78e7e35 |
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Subproject commit c374bfd9fdff02a0cff85d005488967b1b0f675e |
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@ -0,0 +1,742 @@ |
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// 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 <ranges>
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#include <string>
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#include <unordered_map>
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#include <utility>
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#include <vector>
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#include <fmt/format.h>
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#include <boost/intrusive/list.hpp>
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#include "shader_recompiler/frontend/ir/basic_block.h"
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#include "shader_recompiler/frontend/ir/ir_emitter.h"
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#include "shader_recompiler/object_pool.h"
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namespace Shader::IR { |
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namespace { |
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struct Statement; |
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// Use normal_link because we are not guaranteed to destroy the tree in order
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using ListBaseHook = |
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boost::intrusive::list_base_hook<boost::intrusive::link_mode<boost::intrusive::normal_link>>; |
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using Tree = boost::intrusive::list<Statement, |
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// Allow using Statement without a definition
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boost::intrusive::base_hook<ListBaseHook>, |
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// Avoid linear complexity on splice, size is never called
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boost::intrusive::constant_time_size<false>>; |
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using Node = Tree::iterator; |
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using ConstNode = Tree::const_iterator; |
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enum class StatementType { |
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Code, |
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Goto, |
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Label, |
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If, |
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Loop, |
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Break, |
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Return, |
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Function, |
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Identity, |
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Not, |
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Or, |
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SetVariable, |
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Variable, |
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}; |
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bool HasChildren(StatementType type) { |
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switch (type) { |
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case StatementType::If: |
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case StatementType::Loop: |
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case StatementType::Function: |
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return true; |
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default: |
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return false; |
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} |
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} |
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struct Goto {}; |
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struct Label {}; |
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struct If {}; |
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struct Loop {}; |
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struct Break {}; |
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struct Return {}; |
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struct FunctionTag {}; |
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struct Identity {}; |
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struct Not {}; |
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struct Or {}; |
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struct SetVariable {}; |
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struct Variable {}; |
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable : 26495) // Always initialize a member variable, expected in Statement
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#endif
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struct Statement : ListBaseHook { |
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Statement(Block* code_, Statement* up_) : code{code_}, up{up_}, type{StatementType::Code} {} |
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Statement(Goto, Statement* cond_, Node label_, Statement* up_) |
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: label{label_}, cond{cond_}, up{up_}, type{StatementType::Goto} {} |
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Statement(Label, u32 id_, Statement* up_) : id{id_}, up{up_}, type{StatementType::Label} {} |
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Statement(If, Statement* cond_, Tree&& children_, Statement* up_) |
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: children{std::move(children_)}, cond{cond_}, up{up_}, type{StatementType::If} {} |
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Statement(Loop, Statement* cond_, Tree&& children_, Statement* up_) |
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: children{std::move(children_)}, cond{cond_}, up{up_}, type{StatementType::Loop} {} |
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Statement(Break, Statement* cond_, Statement* up_) |
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: cond{cond_}, up{up_}, type{StatementType::Break} {} |
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Statement(Return) : type{StatementType::Return} {} |
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Statement(FunctionTag) : children{}, type{StatementType::Function} {} |
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Statement(Identity, Condition cond_) : guest_cond{cond_}, type{StatementType::Identity} {} |
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Statement(Not, Statement* op_) : op{op_}, type{StatementType::Not} {} |
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Statement(Or, Statement* op_a_, Statement* op_b_) |
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: op_a{op_a_}, op_b{op_b_}, type{StatementType::Or} {} |
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Statement(SetVariable, u32 id_, Statement* op_, Statement* up_) |
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: op{op_}, id{id_}, up{up_}, type{StatementType::SetVariable} {} |
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Statement(Variable, u32 id_) : id{id_}, type{StatementType::Variable} {} |
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~Statement() { |
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if (HasChildren(type)) { |
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std::destroy_at(&children); |
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} |
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} |
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union { |
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Block* code; |
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Node label; |
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Tree children; |
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Condition guest_cond; |
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Statement* op; |
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Statement* op_a; |
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}; |
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union { |
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Statement* cond; |
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Statement* op_b; |
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u32 id; |
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}; |
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Statement* up{}; |
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StatementType type; |
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}; |
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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std::string DumpExpr(const Statement* stmt) { |
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switch (stmt->type) { |
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case StatementType::Identity: |
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return fmt::format("{}", stmt->guest_cond); |
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case StatementType::Not: |
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return fmt::format("!{}", DumpExpr(stmt->op)); |
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case StatementType::Or: |
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return fmt::format("{} || {}", DumpExpr(stmt->op_a), DumpExpr(stmt->op_b)); |
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case StatementType::Variable: |
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return fmt::format("goto_L{}", stmt->id); |
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default: |
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return "<invalid type>"; |
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} |
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} |
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std::string DumpTree(const Tree& tree, u32 indentation = 0) { |
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std::string ret; |
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std::string indent(indentation, ' '); |
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for (auto stmt = tree.begin(); stmt != tree.end(); ++stmt) { |
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switch (stmt->type) { |
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case StatementType::Code: |
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ret += fmt::format("{} Block {:04x};\n", indent, stmt->code->LocationBegin()); |
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break; |
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case StatementType::Goto: |
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ret += fmt::format("{} if ({}) goto L{};\n", indent, DumpExpr(stmt->cond), |
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stmt->label->id); |
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break; |
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case StatementType::Label: |
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ret += fmt::format("{}L{}:\n", indent, stmt->id); |
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break; |
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case StatementType::If: |
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ret += fmt::format("{} if ({}) {{\n", indent, DumpExpr(stmt->cond)); |
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ret += DumpTree(stmt->children, indentation + 4); |
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ret += fmt::format("{} }}\n", indent); |
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break; |
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case StatementType::Loop: |
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ret += fmt::format("{} do {{\n", indent); |
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ret += DumpTree(stmt->children, indentation + 4); |
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ret += fmt::format("{} }} while ({});\n", indent, DumpExpr(stmt->cond)); |
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break; |
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case StatementType::Break: |
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ret += fmt::format("{} if ({}) break;\n", indent, DumpExpr(stmt->cond)); |
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break; |
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case StatementType::Return: |
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ret += fmt::format("{} return;\n", indent); |
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break; |
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case StatementType::SetVariable: |
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ret += fmt::format("{} goto_L{} = {};\n", indent, stmt->id, DumpExpr(stmt->op)); |
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break; |
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case StatementType::Function: |
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case StatementType::Identity: |
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case StatementType::Not: |
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case StatementType::Or: |
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case StatementType::Variable: |
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throw LogicError("Statement can't be printed"); |
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} |
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} |
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return ret; |
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} |
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bool HasNode(const Tree& tree, ConstNode stmt) { |
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const auto end{tree.end()}; |
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for (auto it = tree.begin(); it != end; ++it) { |
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if (it == stmt || (HasChildren(it->type) && HasNode(it->children, stmt))) { |
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return true; |
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} |
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} |
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return false; |
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} |
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Node FindStatementWithLabel(Tree& tree, ConstNode goto_stmt) { |
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const ConstNode label_stmt{goto_stmt->label}; |
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const ConstNode end{tree.end()}; |
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for (auto it = tree.begin(); it != end; ++it) { |
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if (it == label_stmt || (HasChildren(it->type) && HasNode(it->children, label_stmt))) { |
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return it; |
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} |
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} |
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throw LogicError("Lift label not in tree"); |
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} |
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void SanitizeNoBreaks(const Tree& tree) { |
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if (std::ranges::find(tree, StatementType::Break, &Statement::type) != tree.end()) { |
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throw NotImplementedException("Capturing statement with break nodes"); |
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} |
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} |
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size_t Level(Node stmt) { |
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size_t level{0}; |
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Statement* node{stmt->up}; |
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while (node) { |
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++level; |
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node = node->up; |
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} |
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return level; |
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} |
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bool IsDirectlyRelated(Node goto_stmt, Node label_stmt) { |
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const size_t goto_level{Level(goto_stmt)}; |
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const size_t label_level{Level(label_stmt)}; |
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size_t min_level; |
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size_t max_level; |
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Node min; |
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Node max; |
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if (label_level < goto_level) { |
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min_level = label_level; |
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max_level = goto_level; |
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min = label_stmt; |
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max = goto_stmt; |
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} else { // goto_level < label_level
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min_level = goto_level; |
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max_level = label_level; |
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min = goto_stmt; |
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max = label_stmt; |
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} |
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while (max_level > min_level) { |
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--max_level; |
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max = max->up; |
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} |
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return min->up == max->up; |
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} |
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bool IsIndirectlyRelated(Node goto_stmt, Node label_stmt) { |
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return goto_stmt->up != label_stmt->up && !IsDirectlyRelated(goto_stmt, label_stmt); |
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} |
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bool SearchNode(const Tree& tree, ConstNode stmt, size_t& offset) { |
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++offset; |
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const auto end = tree.end(); |
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for (ConstNode it = tree.begin(); it != end; ++it) { |
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++offset; |
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if (stmt == it) { |
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return true; |
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} |
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if (HasChildren(it->type) && SearchNode(it->children, stmt, offset)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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class GotoPass { |
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public: |
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explicit GotoPass(std::span<Block* const> blocks, ObjectPool<Statement, 64>& stmt_pool) |
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: pool{stmt_pool} { |
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std::vector gotos{BuildUnorderedTreeGetGotos(blocks)}; |
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fmt::print(stdout, "BEFORE\n{}\n", DumpTree(root_stmt.children)); |
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for (const Node& goto_stmt : gotos | std::views::reverse) { |
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RemoveGoto(goto_stmt); |
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} |
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fmt::print(stdout, "AFTER\n{}\n", DumpTree(root_stmt.children)); |
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} |
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Statement& RootStatement() noexcept { |
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return root_stmt; |
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} |
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private: |
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void RemoveGoto(Node goto_stmt) { |
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// Force goto_stmt and label_stmt to be directly related
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const Node label_stmt{goto_stmt->label}; |
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if (IsIndirectlyRelated(goto_stmt, label_stmt)) { |
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// Move goto_stmt out using outward-movement transformation until it becomes
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// directly related to label_stmt
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while (!IsDirectlyRelated(goto_stmt, label_stmt)) { |
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goto_stmt = MoveOutward(goto_stmt); |
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} |
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} |
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// Force goto_stmt and label_stmt to be siblings
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if (IsDirectlyRelated(goto_stmt, label_stmt)) { |
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const size_t label_level{Level(label_stmt)}; |
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size_t goto_level{Level(goto_stmt)}; |
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if (goto_level > label_level) { |
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// Move goto_stmt out of its level using outward-movement transformations
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while (goto_level > label_level) { |
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goto_stmt = MoveOutward(goto_stmt); |
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--goto_level; |
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} |
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} else { // Level(goto_stmt) < Level(label_stmt)
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if (Offset(goto_stmt) > Offset(label_stmt)) { |
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// Lift goto_stmt to above stmt containing label_stmt using goto-lifting
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// transformations
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goto_stmt = Lift(goto_stmt); |
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} |
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// Move goto_stmt into label_stmt's level using inward-movement transformation
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while (goto_level < label_level) { |
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goto_stmt = MoveInward(goto_stmt); |
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++goto_level; |
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} |
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} |
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} |
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// TODO: Remove this
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Node it{goto_stmt}; |
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bool sibling{false}; |
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do { |
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sibling |= it == label_stmt; |
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--it; |
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} while (it != goto_stmt->up->children.begin()); |
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while (it != goto_stmt->up->children.end()) { |
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sibling |= it == label_stmt; |
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++it; |
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} |
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if (!sibling) { |
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throw LogicError("Not siblings"); |
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} |
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// goto_stmt and label_stmt are guaranteed to be siblings, eliminate
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if (std::next(goto_stmt) == label_stmt) { |
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// Simply eliminate the goto if the label is next to it
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goto_stmt->up->children.erase(goto_stmt); |
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} else if (Offset(goto_stmt) < Offset(label_stmt)) { |
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// Eliminate goto_stmt with a conditional
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EliminateAsConditional(goto_stmt, label_stmt); |
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} else { |
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// Eliminate goto_stmt with a loop
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EliminateAsLoop(goto_stmt, label_stmt); |
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} |
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} |
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std::vector<Node> BuildUnorderedTreeGetGotos(std::span<Block* const> blocks) { |
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// Assume all blocks have two branches
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std::vector<Node> gotos; |
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gotos.reserve(blocks.size() * 2); |
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const std::unordered_map labels_map{BuildLabels(blocks)}; |
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Tree& root{root_stmt.children}; |
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auto insert_point{root.begin()}; |
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for (Block* const block : blocks) { |
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++insert_point; // Skip label
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++insert_point; // Skip set variable
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root.insert(insert_point, *pool.Create(block, &root_stmt)); |
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if (block->IsTerminationBlock()) { |
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root.insert(insert_point, *pool.Create(Return{})); |
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continue; |
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} |
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const Condition cond{block->BranchCondition()}; |
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Statement* const true_cond{pool.Create(Identity{}, Condition{true})}; |
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if (cond == Condition{true} || cond == Condition{false}) { |
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const bool is_true{cond == Condition{true}}; |
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const Block* const branch{is_true ? block->TrueBranch() : block->FalseBranch()}; |
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const Node label{labels_map.at(branch)}; |
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Statement* const goto_stmt{pool.Create(Goto{}, true_cond, label, &root_stmt)}; |
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gotos.push_back(root.insert(insert_point, *goto_stmt)); |
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} else { |
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Statement* const ident_cond{pool.Create(Identity{}, cond)}; |
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const Node true_label{labels_map.at(block->TrueBranch())}; |
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const Node false_label{labels_map.at(block->FalseBranch())}; |
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Statement* goto_true{pool.Create(Goto{}, ident_cond, true_label, &root_stmt)}; |
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Statement* goto_false{pool.Create(Goto{}, true_cond, false_label, &root_stmt)}; |
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gotos.push_back(root.insert(insert_point, *goto_true)); |
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gotos.push_back(root.insert(insert_point, *goto_false)); |
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} |
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} |
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return gotos; |
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} |
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std::unordered_map<const Block*, Node> BuildLabels(std::span<Block* const> blocks) { |
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// TODO: Consider storing labels intrusively inside the block
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std::unordered_map<const Block*, Node> labels_map; |
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Tree& root{root_stmt.children}; |
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u32 label_id{0}; |
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for (const Block* const block : blocks) { |
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Statement* const label{pool.Create(Label{}, label_id, &root_stmt)}; |
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labels_map.emplace(block, root.insert(root.end(), *label)); |
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Statement* const false_stmt{pool.Create(Identity{}, Condition{false})}; |
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root.push_back(*pool.Create(SetVariable{}, label_id, false_stmt, &root_stmt)); |
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++label_id; |
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} |
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return labels_map; |
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} |
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void UpdateTreeUp(Statement* tree) { |
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for (Statement& stmt : tree->children) { |
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stmt.up = tree; |
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} |
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} |
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void EliminateAsConditional(Node goto_stmt, Node label_stmt) { |
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Tree& body{goto_stmt->up->children}; |
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Tree if_body; |
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if_body.splice(if_body.begin(), body, std::next(goto_stmt), label_stmt); |
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Statement* const cond{pool.Create(Not{}, goto_stmt->cond)}; |
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Statement* const if_stmt{pool.Create(If{}, cond, std::move(if_body), goto_stmt->up)}; |
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UpdateTreeUp(if_stmt); |
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body.insert(goto_stmt, *if_stmt); |
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body.erase(goto_stmt); |
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} |
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void EliminateAsLoop(Node goto_stmt, Node label_stmt) { |
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Tree& body{goto_stmt->up->children}; |
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Tree loop_body; |
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loop_body.splice(loop_body.begin(), body, label_stmt, goto_stmt); |
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Statement* const cond{goto_stmt->cond}; |
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Statement* const loop{pool.Create(Loop{}, cond, std::move(loop_body), goto_stmt->up)}; |
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UpdateTreeUp(loop); |
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body.insert(goto_stmt, *loop); |
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body.erase(goto_stmt); |
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} |
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[[nodiscard]] Node MoveOutward(Node goto_stmt) { |
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switch (goto_stmt->up->type) { |
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case StatementType::If: |
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return MoveOutwardIf(goto_stmt); |
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case StatementType::Loop: |
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return MoveOutwardLoop(goto_stmt); |
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default: |
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throw LogicError("Invalid outward movement"); |
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} |
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} |
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[[nodiscard]] Node MoveInward(Node goto_stmt) { |
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Statement* const parent{goto_stmt->up}; |
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Tree& body{parent->children}; |
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const Node label_nested_stmt{FindStatementWithLabel(body, goto_stmt)}; |
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const Node label{goto_stmt->label}; |
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const u32 label_id{label->id}; |
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Statement* const goto_cond{goto_stmt->cond}; |
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Statement* const set_var{pool.Create(SetVariable{}, label_id, goto_cond, parent)}; |
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body.insert(goto_stmt, *set_var); |
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Tree if_body; |
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if_body.splice(if_body.begin(), body, std::next(goto_stmt), label_nested_stmt); |
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Statement* const variable{pool.Create(Variable{}, label_id)}; |
|||
Statement* const neg_var{pool.Create(Not{}, variable)}; |
|||
if (!if_body.empty()) { |
|||
Statement* const if_stmt{pool.Create(If{}, neg_var, std::move(if_body), parent)}; |
|||
UpdateTreeUp(if_stmt); |
|||
body.insert(goto_stmt, *if_stmt); |
|||
} |
|||
body.erase(goto_stmt); |
|||
|
|||
// Update nested if condition
|
|||
switch (label_nested_stmt->type) { |
|||
case StatementType::If: |
|||
label_nested_stmt->cond = pool.Create(Or{}, neg_var, label_nested_stmt->cond); |
|||
break; |
|||
case StatementType::Loop: |
|||
break; |
|||
default: |
|||
throw LogicError("Invalid inward movement"); |
|||
} |
|||
Tree& nested_tree{label_nested_stmt->children}; |
|||
Statement* const new_goto{pool.Create(Goto{}, variable, label, &*label_nested_stmt)}; |
|||
return nested_tree.insert(nested_tree.begin(), *new_goto); |
|||
} |
|||
|
|||
[[nodiscard]] Node Lift(Node goto_stmt) { |
|||
Statement* const parent{goto_stmt->up}; |
|||
Tree& body{parent->children}; |
|||
const Node label{goto_stmt->label}; |
|||
const u32 label_id{label->id}; |
|||
const Node label_nested_stmt{FindStatementWithLabel(body, goto_stmt)}; |
|||
const auto type{label_nested_stmt->type}; |
|||
|
|||
Tree loop_body; |
|||
loop_body.splice(loop_body.begin(), body, label_nested_stmt, goto_stmt); |
|||
SanitizeNoBreaks(loop_body); |
|||
Statement* const variable{pool.Create(Variable{}, label_id)}; |
|||
Statement* const loop_stmt{pool.Create(Loop{}, variable, std::move(loop_body), parent)}; |
|||
UpdateTreeUp(loop_stmt); |
|||
const Node loop_node{body.insert(goto_stmt, *loop_stmt)}; |
|||
|
|||
Statement* const new_goto{pool.Create(Goto{}, variable, label, loop_stmt)}; |
|||
loop_stmt->children.push_front(*new_goto); |
|||
const Node new_goto_node{loop_stmt->children.begin()}; |
|||
|
|||
Statement* const set_var{pool.Create(SetVariable{}, label_id, goto_stmt->cond, loop_stmt)}; |
|||
loop_stmt->children.push_back(*set_var); |
|||
|
|||
body.erase(goto_stmt); |
|||
return new_goto_node; |
|||
} |
|||
|
|||
Node MoveOutwardIf(Node goto_stmt) { |
|||
const Node parent{Tree::s_iterator_to(*goto_stmt->up)}; |
|||
Tree& body{parent->children}; |
|||
const u32 label_id{goto_stmt->label->id}; |
|||
Statement* const goto_cond{goto_stmt->cond}; |
|||
Statement* const set_goto_var{pool.Create(SetVariable{}, label_id, goto_cond, &*parent)}; |
|||
body.insert(goto_stmt, *set_goto_var); |
|||
|
|||
Tree if_body; |
|||
if_body.splice(if_body.begin(), body, std::next(goto_stmt), body.end()); |
|||
if_body.pop_front(); |
|||
Statement* const cond{pool.Create(Variable{}, label_id)}; |
|||
Statement* const neg_cond{pool.Create(Not{}, cond)}; |
|||
Statement* const if_stmt{pool.Create(If{}, neg_cond, std::move(if_body), &*parent)}; |
|||
UpdateTreeUp(if_stmt); |
|||
body.insert(goto_stmt, *if_stmt); |
|||
|
|||
body.erase(goto_stmt); |
|||
|
|||
Statement* const new_cond{pool.Create(Variable{}, label_id)}; |
|||
Statement* const new_goto{pool.Create(Goto{}, new_cond, goto_stmt->label, parent->up)}; |
|||
Tree& parent_tree{parent->up->children}; |
|||
return parent_tree.insert(std::next(parent), *new_goto); |
|||
} |
|||
|
|||
Node MoveOutwardLoop(Node goto_stmt) { |
|||
Statement* const parent{goto_stmt->up}; |
|||
Tree& body{parent->children}; |
|||
const u32 label_id{goto_stmt->label->id}; |
|||
Statement* const goto_cond{goto_stmt->cond}; |
|||
Statement* const set_goto_var{pool.Create(SetVariable{}, label_id, goto_cond, parent)}; |
|||
Statement* const cond{pool.Create(Variable{}, label_id)}; |
|||
Statement* const break_stmt{pool.Create(Break{}, cond, parent)}; |
|||
body.insert(goto_stmt, *set_goto_var); |
|||
body.insert(goto_stmt, *break_stmt); |
|||
body.erase(goto_stmt); |
|||
|
|||
const Node loop{Tree::s_iterator_to(*goto_stmt->up)}; |
|||
Statement* const new_goto_cond{pool.Create(Variable{}, label_id)}; |
|||
Statement* const new_goto{pool.Create(Goto{}, new_goto_cond, goto_stmt->label, loop->up)}; |
|||
Tree& parent_tree{loop->up->children}; |
|||
return parent_tree.insert(std::next(loop), *new_goto); |
|||
} |
|||
|
|||
size_t Offset(ConstNode stmt) const { |
|||
size_t offset{0}; |
|||
if (!SearchNode(root_stmt.children, stmt, offset)) { |
|||
fmt::print(stdout, "{}\n", DumpTree(root_stmt.children)); |
|||
throw LogicError("Node not found in tree"); |
|||
} |
|||
return offset; |
|||
} |
|||
|
|||
ObjectPool<Statement, 64>& pool; |
|||
Statement root_stmt{FunctionTag{}}; |
|||
}; |
|||
|
|||
Block* TryFindForwardBlock(const Statement& stmt) { |
|||
const Tree& tree{stmt.up->children}; |
|||
const ConstNode end{tree.cend()}; |
|||
ConstNode forward_node{std::next(Tree::s_iterator_to(stmt))}; |
|||
while (forward_node != end && !HasChildren(forward_node->type)) { |
|||
if (forward_node->type == StatementType::Code) { |
|||
return forward_node->code; |
|||
} |
|||
++forward_node; |
|||
} |
|||
return nullptr; |
|||
} |
|||
|
|||
[[nodiscard]] U1 VisitExpr(IREmitter& ir, const Statement& stmt) { |
|||
switch (stmt.type) { |
|||
case StatementType::Identity: |
|||
return ir.Condition(stmt.guest_cond); |
|||
case StatementType::Not: |
|||
return ir.LogicalNot(U1{VisitExpr(ir, *stmt.op)}); |
|||
case StatementType::Or: |
|||
return ir.LogicalOr(VisitExpr(ir, *stmt.op_a), VisitExpr(ir, *stmt.op_b)); |
|||
case StatementType::Variable: |
|||
return ir.GetGotoVariable(stmt.id); |
|||
default: |
|||
throw NotImplementedException("Statement type {}", stmt.type); |
|||
} |
|||
} |
|||
|
|||
class TranslatePass { |
|||
public: |
|||
TranslatePass(ObjectPool<Inst>& inst_pool_, ObjectPool<Block>& block_pool_, |
|||
ObjectPool<Statement, 64>& stmt_pool_, Statement& root_stmt, |
|||
const std::function<void(IR::Block*)>& func_, BlockList& block_list_) |
|||
: stmt_pool{stmt_pool_}, inst_pool{inst_pool_}, block_pool{block_pool_}, func{func_}, |
|||
block_list{block_list_} { |
|||
Visit(root_stmt, nullptr, nullptr); |
|||
} |
|||
|
|||
private: |
|||
void Visit(Statement& parent, Block* continue_block, Block* break_block) { |
|||
Tree& tree{parent.children}; |
|||
Block* current_block{nullptr}; |
|||
|
|||
for (auto it = tree.begin(); it != tree.end(); ++it) { |
|||
Statement& stmt{*it}; |
|||
switch (stmt.type) { |
|||
case StatementType::Label: |
|||
// Labels can be ignored
|
|||
break; |
|||
case StatementType::Code: { |
|||
if (current_block && current_block != stmt.code) { |
|||
IREmitter ir{*current_block}; |
|||
ir.Branch(stmt.code); |
|||
} |
|||
current_block = stmt.code; |
|||
func(stmt.code); |
|||
block_list.push_back(stmt.code); |
|||
break; |
|||
} |
|||
case StatementType::SetVariable: { |
|||
if (!current_block) { |
|||
current_block = MergeBlock(parent, stmt); |
|||
} |
|||
IREmitter ir{*current_block}; |
|||
ir.SetGotoVariable(stmt.id, VisitExpr(ir, *stmt.op)); |
|||
break; |
|||
} |
|||
case StatementType::If: { |
|||
if (!current_block) { |
|||
current_block = block_pool.Create(inst_pool); |
|||
block_list.push_back(current_block); |
|||
} |
|||
Block* const merge_block{MergeBlock(parent, stmt)}; |
|||
|
|||
// Visit children
|
|||
const size_t first_block_index{block_list.size()}; |
|||
Visit(stmt, merge_block, break_block); |
|||
|
|||
// Implement if header block
|
|||
Block* const first_if_block{block_list.at(first_block_index)}; |
|||
IREmitter ir{*current_block}; |
|||
const U1 cond{VisitExpr(ir, *stmt.cond)}; |
|||
ir.SelectionMerge(merge_block); |
|||
ir.BranchConditional(cond, first_if_block, merge_block); |
|||
|
|||
current_block = merge_block; |
|||
break; |
|||
} |
|||
case StatementType::Loop: { |
|||
Block* const loop_header_block{block_pool.Create(inst_pool)}; |
|||
if (current_block) { |
|||
IREmitter{*current_block}.Branch(loop_header_block); |
|||
} |
|||
block_list.push_back(loop_header_block); |
|||
|
|||
Block* const new_continue_block{block_pool.Create(inst_pool)}; |
|||
Block* const merge_block{MergeBlock(parent, stmt)}; |
|||
|
|||
// Visit children
|
|||
const size_t first_block_index{block_list.size()}; |
|||
Visit(stmt, new_continue_block, merge_block); |
|||
|
|||
// The continue block is located at the end of the loop
|
|||
block_list.push_back(new_continue_block); |
|||
|
|||
// Implement loop header block
|
|||
Block* const first_loop_block{block_list.at(first_block_index)}; |
|||
IREmitter ir{*loop_header_block}; |
|||
ir.LoopMerge(merge_block, new_continue_block); |
|||
ir.Branch(first_loop_block); |
|||
|
|||
// Implement continue block
|
|||
IREmitter continue_ir{*new_continue_block}; |
|||
const U1 continue_cond{VisitExpr(continue_ir, *stmt.cond)}; |
|||
continue_ir.BranchConditional(continue_cond, ir.block, merge_block); |
|||
|
|||
current_block = merge_block; |
|||
break; |
|||
} |
|||
case StatementType::Break: { |
|||
if (!current_block) { |
|||
current_block = block_pool.Create(inst_pool); |
|||
block_list.push_back(current_block); |
|||
} |
|||
Block* const skip_block{MergeBlock(parent, stmt)}; |
|||
|
|||
IREmitter ir{*current_block}; |
|||
ir.BranchConditional(VisitExpr(ir, *stmt.cond), break_block, skip_block); |
|||
|
|||
current_block = skip_block; |
|||
break; |
|||
} |
|||
case StatementType::Return: { |
|||
if (!current_block) { |
|||
current_block = block_pool.Create(inst_pool); |
|||
block_list.push_back(current_block); |
|||
} |
|||
IREmitter{*current_block}.Return(); |
|||
current_block = nullptr; |
|||
break; |
|||
} |
|||
default: |
|||
throw NotImplementedException("Statement type {}", stmt.type); |
|||
} |
|||
} |
|||
if (current_block && continue_block) { |
|||
IREmitter ir{*current_block}; |
|||
ir.Branch(continue_block); |
|||
} |
|||
} |
|||
|
|||
Block* MergeBlock(Statement& parent, Statement& stmt) { |
|||
if (Block* const block{TryFindForwardBlock(stmt)}) { |
|||
return block; |
|||
} |
|||
// Create a merge block we can visit later
|
|||
Block* const block{block_pool.Create(inst_pool)}; |
|||
Statement* const merge_stmt{stmt_pool.Create(block, &parent)}; |
|||
parent.children.insert(std::next(Tree::s_iterator_to(stmt)), *merge_stmt); |
|||
return block; |
|||
} |
|||
|
|||
ObjectPool<Statement, 64>& stmt_pool; |
|||
ObjectPool<Inst>& inst_pool; |
|||
ObjectPool<Block>& block_pool; |
|||
const std::function<void(IR::Block*)>& func; |
|||
BlockList& block_list; |
|||
}; |
|||
} // Anonymous namespace
|
|||
|
|||
BlockList VisitAST(ObjectPool<Inst>& inst_pool, ObjectPool<Block>& block_pool, |
|||
std::span<Block* const> unordered_blocks, |
|||
const std::function<void(Block*)>& func) { |
|||
ObjectPool<Statement, 64> stmt_pool; |
|||
GotoPass goto_pass{unordered_blocks, stmt_pool}; |
|||
BlockList block_list; |
|||
TranslatePass translate_pass{inst_pool, block_pool, stmt_pool, goto_pass.RootStatement(), |
|||
func, block_list}; |
|||
return block_list; |
|||
} |
|||
|
|||
} // namespace Shader::IR
|
|||
@ -0,0 +1,22 @@ |
|||
// Copyright 2021 yuzu Emulator Project |
|||
// Licensed under GPLv2 or any later version |
|||
// Refer to the license.txt file included. |
|||
|
|||
#pragma once |
|||
|
|||
#include <functional> |
|||
#include <span> |
|||
|
|||
#include <boost/intrusive/list.hpp> |
|||
|
|||
#include "shader_recompiler/frontend/ir/basic_block.h" |
|||
#include "shader_recompiler/frontend/ir/microinstruction.h" |
|||
#include "shader_recompiler/object_pool.h" |
|||
|
|||
namespace Shader::IR { |
|||
|
|||
[[nodiscard]] BlockList VisitAST(ObjectPool<Inst>& inst_pool, ObjectPool<Block>& block_pool, |
|||
std::span<Block* const> unordered_blocks, |
|||
const std::function<void(Block*)>& func); |
|||
|
|||
} // namespace Shader::IR |
|||
@ -1,86 +0,0 @@ |
|||
// Copyright 2021 yuzu Emulator Project
|
|||
// Licensed under GPLv2 or any later version
|
|||
// Refer to the license.txt file included.
|
|||
|
|||
#include <span>
|
|||
|
|||
#include "shader_recompiler/exception.h"
|
|||
#include "shader_recompiler/frontend/ir/basic_block.h"
|
|||
#include "shader_recompiler/frontend/ir/ir_emitter.h"
|
|||
#include "shader_recompiler/frontend/maxwell/control_flow.h"
|
|||
#include "shader_recompiler/frontend/maxwell/termination_code.h"
|
|||
|
|||
namespace Shader::Maxwell { |
|||
|
|||
static void EmitExit(IR::IREmitter& ir) { |
|||
ir.Exit(); |
|||
} |
|||
|
|||
static IR::U1 GetFlowTest(IR::FlowTest flow_test, IR::IREmitter& ir) { |
|||
switch (flow_test) { |
|||
case IR::FlowTest::T: |
|||
return ir.Imm1(true); |
|||
case IR::FlowTest::F: |
|||
return ir.Imm1(false); |
|||
case IR::FlowTest::NE: |
|||
// FIXME: Verify this
|
|||
return ir.LogicalNot(ir.GetZFlag()); |
|||
case IR::FlowTest::NaN: |
|||
// FIXME: Verify this
|
|||
return ir.LogicalAnd(ir.GetSFlag(), ir.GetZFlag()); |
|||
default: |
|||
throw NotImplementedException("Flow test {}", flow_test); |
|||
} |
|||
} |
|||
|
|||
static IR::U1 GetCond(IR::Condition cond, IR::IREmitter& ir) { |
|||
const IR::FlowTest flow_test{cond.FlowTest()}; |
|||
const auto [pred, pred_negated]{cond.Pred()}; |
|||
if (pred == IR::Pred::PT && !pred_negated) { |
|||
return GetFlowTest(flow_test, ir); |
|||
} |
|||
if (flow_test == IR::FlowTest::T) { |
|||
return ir.GetPred(pred, pred_negated); |
|||
} |
|||
return ir.LogicalAnd(ir.GetPred(pred, pred_negated), GetFlowTest(flow_test, ir)); |
|||
} |
|||
|
|||
static void EmitBranch(const Flow::Block& flow_block, std::span<IR::Block* const> block_map, |
|||
IR::IREmitter& ir) { |
|||
const auto add_immediate_predecessor = [&](Flow::BlockId label) { |
|||
block_map[label]->AddImmediatePredecessor(&ir.block); |
|||
}; |
|||
if (flow_block.cond == true) { |
|||
add_immediate_predecessor(flow_block.branch_true); |
|||
return ir.Branch(block_map[flow_block.branch_true]); |
|||
} |
|||
if (flow_block.cond == false) { |
|||
add_immediate_predecessor(flow_block.branch_false); |
|||
return ir.Branch(block_map[flow_block.branch_false]); |
|||
} |
|||
add_immediate_predecessor(flow_block.branch_true); |
|||
add_immediate_predecessor(flow_block.branch_false); |
|||
return ir.BranchConditional(GetCond(flow_block.cond, ir), block_map[flow_block.branch_true], |
|||
block_map[flow_block.branch_false]); |
|||
} |
|||
|
|||
void EmitTerminationCode(const Flow::Block& flow_block, std::span<IR::Block* const> block_map) { |
|||
IR::Block* const block{block_map[flow_block.id]}; |
|||
IR::IREmitter ir(*block); |
|||
switch (flow_block.end_class) { |
|||
case Flow::EndClass::Branch: |
|||
EmitBranch(flow_block, block_map, ir); |
|||
break; |
|||
case Flow::EndClass::Exit: |
|||
EmitExit(ir); |
|||
break; |
|||
case Flow::EndClass::Return: |
|||
ir.Return(); |
|||
break; |
|||
case Flow::EndClass::Unreachable: |
|||
ir.Unreachable(); |
|||
break; |
|||
} |
|||
} |
|||
|
|||
} // namespace Shader::Maxwell
|
|||
@ -1,17 +0,0 @@ |
|||
// Copyright 2021 yuzu Emulator Project |
|||
// Licensed under GPLv2 or any later version |
|||
// Refer to the license.txt file included. |
|||
|
|||
#pragma once |
|||
|
|||
#include <span> |
|||
|
|||
#include "shader_recompiler/frontend/ir/basic_block.h" |
|||
#include "shader_recompiler/frontend/maxwell/control_flow.h" |
|||
|
|||
namespace Shader::Maxwell { |
|||
|
|||
/// Emit termination instructions and collect immediate predecessors |
|||
void EmitTerminationCode(const Flow::Block& flow_block, std::span<IR::Block* const> block_map); |
|||
|
|||
} // namespace Shader::Maxwell |
|||
@ -0,0 +1,28 @@ |
|||
// Copyright 2021 yuzu Emulator Project |
|||
// Licensed under GPLv2 or any later version |
|||
// Refer to the license.txt file included. |
|||
|
|||
#pragma once |
|||
|
|||
#include <array> |
|||
|
|||
#include <boost/container/static_vector.hpp> |
|||
|
|||
namespace Shader { |
|||
|
|||
struct Info { |
|||
struct ConstantBuffer { |
|||
|
|||
}; |
|||
|
|||
struct { |
|||
bool workgroup_id{}; |
|||
bool local_invocation_id{}; |
|||
bool fp16{}; |
|||
bool fp64{}; |
|||
} uses; |
|||
|
|||
std::array<18 |
|||
}; |
|||
|
|||
} // namespace Shader |
|||
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