mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-21 15:23:23 +02:00
shader: Properly store phi on Inst
This commit is contained in:
parent
16cb00c521
commit
da8096e6e3
@ -129,26 +129,21 @@ std::string DumpBlock(const Block& block, const std::map<const Block*, size_t>&
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} else {
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} else {
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ret += fmt::format(" {}", op); // '%00000 = ' -> 1 + 5 + 3 = 9 spaces
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ret += fmt::format(" {}", op); // '%00000 = ' -> 1 + 5 + 3 = 9 spaces
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}
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}
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if (op == Opcode::Phi) {
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const size_t arg_count{NumArgsOf(op)};
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size_t val_index{0};
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for (size_t arg_index = 0; arg_index < arg_count; ++arg_index) {
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for (const auto& [phi_block, phi_val] : inst.PhiOperands()) {
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const Value arg{inst.Arg(arg_index)};
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ret += val_index != 0 ? ", " : " ";
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const std::string arg_str{ArgToIndex(block_to_index, inst_to_index, arg)};
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ret += fmt::format("[ {}, {} ]", ArgToIndex(block_to_index, inst_to_index, phi_val),
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ret += arg_index != 0 ? ", " : " ";
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BlockToIndex(block_to_index, phi_block));
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if (op == Opcode::Phi) {
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++val_index;
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ret += fmt::format("[ {}, {} ]", arg_index,
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BlockToIndex(block_to_index, inst.PhiBlock(arg_index)));
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} else {
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ret += arg_str;
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}
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}
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} else {
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const Type actual_type{arg.Type()};
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const size_t arg_count{NumArgsOf(op)};
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const Type expected_type{ArgTypeOf(op, arg_index)};
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for (size_t arg_index = 0; arg_index < arg_count; ++arg_index) {
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if (!AreTypesCompatible(actual_type, expected_type)) {
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const Value arg{inst.Arg(arg_index)};
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ret += fmt::format("<type error: {} != {}>", actual_type, expected_type);
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ret += arg_index != 0 ? ", " : " ";
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ret += ArgToIndex(block_to_index, inst_to_index, arg);
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const Type actual_type{arg.Type()};
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const Type expected_type{ArgTypeOf(op, arg_index)};
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if (!AreTypesCompatible(actual_type, expected_type)) {
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ret += fmt::format("<type error: {} != {}>", actual_type, expected_type);
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}
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}
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}
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}
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}
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if (TypeOf(op) != Type::Void) {
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if (TypeOf(op) != Type::Void) {
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@ -3,6 +3,7 @@
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// Refer to the license.txt file included.
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <algorithm>
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#include <memory>
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#include "shader_recompiler/exception.h"
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#include "shader_recompiler/exception.h"
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#include "shader_recompiler/frontend/ir/microinstruction.h"
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#include "shader_recompiler/frontend/ir/microinstruction.h"
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@ -30,6 +31,22 @@ static void RemovePseudoInstruction(IR::Inst*& inst, IR::Opcode expected_opcode)
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inst = nullptr;
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inst = nullptr;
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}
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}
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Inst::Inst(IR::Opcode op_, u64 flags_) noexcept : op{op_}, flags{flags_} {
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if (op == Opcode::Phi) {
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std::construct_at(&phi_args);
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} else {
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std::construct_at(&args);
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}
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}
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Inst::~Inst() {
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if (op == Opcode::Phi) {
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std::destroy_at(&phi_args);
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} else {
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std::destroy_at(&args);
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}
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}
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bool Inst::MayHaveSideEffects() const noexcept {
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bool Inst::MayHaveSideEffects() const noexcept {
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switch (op) {
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switch (op) {
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case Opcode::Branch:
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case Opcode::Branch:
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@ -71,7 +88,10 @@ bool Inst::IsPseudoInstruction() const noexcept {
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}
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}
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}
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}
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bool Inst::AreAllArgsImmediates() const noexcept {
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bool Inst::AreAllArgsImmediates() const {
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if (op == Opcode::Phi) {
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throw LogicError("Testing for all arguments are immediates on phi instruction");
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}
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return std::all_of(args.begin(), args.begin() + NumArgs(),
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return std::all_of(args.begin(), args.begin() + NumArgs(),
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[](const IR::Value& value) { return value.IsImmediate(); });
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[](const IR::Value& value) { return value.IsImmediate(); });
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}
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}
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@ -101,7 +121,7 @@ Inst* Inst::GetAssociatedPseudoOperation(IR::Opcode opcode) {
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}
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}
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size_t Inst::NumArgs() const {
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size_t Inst::NumArgs() const {
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return NumArgsOf(op);
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return op == Opcode::Phi ? phi_args.size() : NumArgsOf(op);
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}
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}
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IR::Type Inst::Type() const {
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IR::Type Inst::Type() const {
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@ -109,13 +129,23 @@ IR::Type Inst::Type() const {
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}
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}
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Value Inst::Arg(size_t index) const {
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Value Inst::Arg(size_t index) const {
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if (index >= NumArgsOf(op)) {
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if (op == Opcode::Phi) {
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throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
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if (index >= phi_args.size()) {
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throw InvalidArgument("Out of bounds argument index {} in phi instruction", index);
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}
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return phi_args[index].second;
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} else {
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if (index >= NumArgsOf(op)) {
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throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
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}
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return args[index];
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}
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}
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return args[index];
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}
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}
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void Inst::SetArg(size_t index, Value value) {
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void Inst::SetArg(size_t index, Value value) {
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if (op == Opcode::Phi) {
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throw LogicError("Setting argument on a phi instruction");
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}
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if (index >= NumArgsOf(op)) {
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if (index >= NumArgsOf(op)) {
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throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
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throw InvalidArgument("Out of bounds argument index {} in opcode {}", index, op);
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}
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}
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@ -128,15 +158,21 @@ void Inst::SetArg(size_t index, Value value) {
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args[index] = value;
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args[index] = value;
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}
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}
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std::span<const std::pair<Block*, Value>> Inst::PhiOperands() const noexcept {
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Block* Inst::PhiBlock(size_t index) const {
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return phi_operands;
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if (op != Opcode::Phi) {
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throw LogicError("{} is not a Phi instruction", op);
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}
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if (index >= phi_args.size()) {
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throw InvalidArgument("Out of bounds argument index {} in phi instruction");
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}
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return phi_args[index].first;
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}
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}
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void Inst::AddPhiOperand(Block* predecessor, const Value& value) {
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void Inst::AddPhiOperand(Block* predecessor, const Value& value) {
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if (!value.IsImmediate()) {
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if (!value.IsImmediate()) {
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Use(value);
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Use(value);
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}
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}
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phi_operands.emplace_back(predecessor, value);
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phi_args.emplace_back(predecessor, value);
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}
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}
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void Inst::Invalidate() {
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void Inst::Invalidate() {
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@ -145,18 +181,22 @@ void Inst::Invalidate() {
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}
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}
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void Inst::ClearArgs() {
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void Inst::ClearArgs() {
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for (auto& value : args) {
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if (op == Opcode::Phi) {
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if (!value.IsImmediate()) {
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for (auto& pair : phi_args) {
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UndoUse(value);
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IR::Value& value{pair.second};
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if (!value.IsImmediate()) {
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UndoUse(value);
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}
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}
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}
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value = {};
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phi_args.clear();
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}
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} else {
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for (auto& [phi_block, phi_op] : phi_operands) {
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for (auto& value : args) {
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if (!phi_op.IsImmediate()) {
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if (!value.IsImmediate()) {
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UndoUse(phi_op);
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UndoUse(value);
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}
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value = {};
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}
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}
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}
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}
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phi_operands.clear();
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}
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}
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void Inst::ReplaceUsesWith(Value replacement) {
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void Inst::ReplaceUsesWith(Value replacement) {
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@ -167,24 +207,29 @@ void Inst::ReplaceUsesWith(Value replacement) {
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if (!replacement.IsImmediate()) {
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if (!replacement.IsImmediate()) {
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Use(replacement);
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Use(replacement);
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}
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}
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args[0] = replacement;
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if (op == Opcode::Phi) {
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phi_args[0].second = replacement;
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} else {
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args[0] = replacement;
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}
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}
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}
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void Inst::Use(const Value& value) {
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void Inst::Use(const Value& value) {
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++value.Inst()->use_count;
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Inst* const inst{value.Inst()};
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++inst->use_count;
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switch (op) {
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switch (op) {
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case Opcode::GetZeroFromOp:
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case Opcode::GetZeroFromOp:
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SetPseudoInstruction(value.Inst()->zero_inst, this);
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SetPseudoInstruction(inst->zero_inst, this);
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break;
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break;
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case Opcode::GetSignFromOp:
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case Opcode::GetSignFromOp:
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SetPseudoInstruction(value.Inst()->sign_inst, this);
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SetPseudoInstruction(inst->sign_inst, this);
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break;
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break;
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case Opcode::GetCarryFromOp:
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case Opcode::GetCarryFromOp:
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SetPseudoInstruction(value.Inst()->carry_inst, this);
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SetPseudoInstruction(inst->carry_inst, this);
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break;
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break;
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case Opcode::GetOverflowFromOp:
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case Opcode::GetOverflowFromOp:
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SetPseudoInstruction(value.Inst()->overflow_inst, this);
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SetPseudoInstruction(inst->overflow_inst, this);
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break;
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break;
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default:
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default:
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break;
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break;
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@ -192,20 +237,21 @@ void Inst::Use(const Value& value) {
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}
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}
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void Inst::UndoUse(const Value& value) {
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void Inst::UndoUse(const Value& value) {
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--value.Inst()->use_count;
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Inst* const inst{value.Inst()};
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--inst->use_count;
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switch (op) {
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switch (op) {
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case Opcode::GetZeroFromOp:
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case Opcode::GetZeroFromOp:
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RemovePseudoInstruction(value.Inst()->zero_inst, Opcode::GetZeroFromOp);
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RemovePseudoInstruction(inst->zero_inst, Opcode::GetZeroFromOp);
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break;
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break;
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case Opcode::GetSignFromOp:
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case Opcode::GetSignFromOp:
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RemovePseudoInstruction(value.Inst()->sign_inst, Opcode::GetSignFromOp);
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RemovePseudoInstruction(inst->sign_inst, Opcode::GetSignFromOp);
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break;
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break;
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case Opcode::GetCarryFromOp:
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case Opcode::GetCarryFromOp:
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RemovePseudoInstruction(value.Inst()->carry_inst, Opcode::GetCarryFromOp);
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RemovePseudoInstruction(inst->carry_inst, Opcode::GetCarryFromOp);
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break;
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break;
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case Opcode::GetOverflowFromOp:
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case Opcode::GetOverflowFromOp:
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RemovePseudoInstruction(value.Inst()->overflow_inst, Opcode::GetOverflowFromOp);
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RemovePseudoInstruction(inst->overflow_inst, Opcode::GetOverflowFromOp);
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break;
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break;
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default:
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default:
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break;
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break;
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@ -6,8 +6,8 @@
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#include <array>
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#include <array>
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#include <cstring>
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#include <cstring>
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#include <span>
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#include <type_traits>
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#include <type_traits>
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#include <utility>
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#include <vector>
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#include <vector>
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#include <boost/intrusive/list.hpp>
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#include <boost/intrusive/list.hpp>
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@ -25,7 +25,14 @@ constexpr size_t MAX_ARG_COUNT = 4;
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class Inst : public boost::intrusive::list_base_hook<> {
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class Inst : public boost::intrusive::list_base_hook<> {
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public:
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public:
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explicit Inst(Opcode op_, u64 flags_) noexcept : op{op_}, flags{flags_} {}
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explicit Inst(Opcode op_, u64 flags_) noexcept;
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~Inst();
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Inst& operator=(const Inst&) = delete;
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Inst(const Inst&) = delete;
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Inst& operator=(Inst&&) = delete;
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Inst(Inst&&) = delete;
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/// Get the number of uses this instruction has.
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/// Get the number of uses this instruction has.
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[[nodiscard]] int UseCount() const noexcept {
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[[nodiscard]] int UseCount() const noexcept {
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@ -50,26 +57,26 @@ public:
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[[nodiscard]] bool IsPseudoInstruction() const noexcept;
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[[nodiscard]] bool IsPseudoInstruction() const noexcept;
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/// Determines if all arguments of this instruction are immediates.
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/// Determines if all arguments of this instruction are immediates.
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[[nodiscard]] bool AreAllArgsImmediates() const noexcept;
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[[nodiscard]] bool AreAllArgsImmediates() const;
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/// Determines if there is a pseudo-operation associated with this instruction.
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/// Determines if there is a pseudo-operation associated with this instruction.
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[[nodiscard]] bool HasAssociatedPseudoOperation() const noexcept;
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[[nodiscard]] bool HasAssociatedPseudoOperation() const noexcept;
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/// Gets a pseudo-operation associated with this instruction
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/// Gets a pseudo-operation associated with this instruction
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[[nodiscard]] Inst* GetAssociatedPseudoOperation(IR::Opcode opcode);
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[[nodiscard]] Inst* GetAssociatedPseudoOperation(IR::Opcode opcode);
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/// Get the number of arguments this instruction has.
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[[nodiscard]] size_t NumArgs() const;
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/// Get the type this instruction returns.
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/// Get the type this instruction returns.
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[[nodiscard]] IR::Type Type() const;
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[[nodiscard]] IR::Type Type() const;
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/// Get the number of arguments this instruction has.
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[[nodiscard]] size_t NumArgs() const;
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/// Get the value of a given argument index.
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/// Get the value of a given argument index.
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[[nodiscard]] Value Arg(size_t index) const;
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[[nodiscard]] Value Arg(size_t index) const;
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/// Set the value of a given argument index.
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/// Set the value of a given argument index.
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void SetArg(size_t index, Value value);
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void SetArg(size_t index, Value value);
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/// Get an immutable span to the phi operands.
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/// Get a pointer to the block of a phi argument.
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[[nodiscard]] std::span<const std::pair<Block*, Value>> PhiOperands() const noexcept;
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[[nodiscard]] Block* PhiBlock(size_t index) const;
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/// Add phi operand to a phi instruction.
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/// Add phi operand to a phi instruction.
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void AddPhiOperand(Block* predecessor, const Value& value);
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void AddPhiOperand(Block* predecessor, const Value& value);
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@ -87,18 +94,26 @@ public:
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}
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}
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private:
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private:
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struct NonTriviallyDummy {
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NonTriviallyDummy() noexcept {}
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};
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void Use(const Value& value);
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void Use(const Value& value);
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void UndoUse(const Value& value);
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void UndoUse(const Value& value);
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IR::Opcode op{};
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IR::Opcode op{};
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int use_count{};
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int use_count{};
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std::array<Value, MAX_ARG_COUNT> args{};
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u64 flags{};
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union {
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NonTriviallyDummy dummy{};
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std::array<Value, MAX_ARG_COUNT> args;
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std::vector<std::pair<Block*, Value>> phi_args;
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};
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Inst* zero_inst{};
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Inst* zero_inst{};
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Inst* sign_inst{};
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Inst* sign_inst{};
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Inst* carry_inst{};
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Inst* carry_inst{};
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Inst* overflow_inst{};
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Inst* overflow_inst{};
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std::vector<std::pair<Block*, Value>> phi_operands;
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u64 flags{};
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};
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};
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static_assert(sizeof(Inst) <= 128, "Inst size unintentionally increased its size");
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} // namespace Shader::IR
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} // namespace Shader::IR
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@ -3,9 +3,9 @@
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// Refer to the license.txt file included.
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// Refer to the license.txt file included.
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// opcode name, return type, arg1 type, arg2 type, arg3 type, arg4 type, ...
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// opcode name, return type, arg1 type, arg2 type, arg3 type, arg4 type, ...
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OPCODE(Phi, Opaque, )
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OPCODE(Void, Void, )
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OPCODE(Void, Void, )
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OPCODE(Identity, Opaque, Opaque, )
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OPCODE(Identity, Opaque, Opaque, )
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OPCODE(Phi, Opaque, /*todo*/ )
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// Control flow
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// Control flow
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OPCODE(Branch, Void, Label, )
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OPCODE(Branch, Void, Label, )
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@ -104,32 +104,34 @@ private:
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val = ReadVariable(variable, preds.front());
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val = ReadVariable(variable, preds.front());
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} else {
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} else {
|
||||||
// Break potential cycles with operandless phi
|
// Break potential cycles with operandless phi
|
||||||
val = IR::Value{&*block->PrependNewInst(block->begin(), IR::Opcode::Phi)};
|
IR::Inst& phi_inst{*block->PrependNewInst(block->begin(), IR::Opcode::Phi)};
|
||||||
|
val = IR::Value{&phi_inst};
|
||||||
WriteVariable(variable, block, val);
|
WriteVariable(variable, block, val);
|
||||||
val = AddPhiOperands(variable, val, block);
|
val = AddPhiOperands(variable, phi_inst, block);
|
||||||
}
|
}
|
||||||
WriteVariable(variable, block, val);
|
WriteVariable(variable, block, val);
|
||||||
return val;
|
return val;
|
||||||
}
|
}
|
||||||
|
|
||||||
IR::Value AddPhiOperands(auto variable, const IR::Value& phi, IR::Block* block) {
|
IR::Value AddPhiOperands(auto variable, IR::Inst& phi, IR::Block* block) {
|
||||||
for (IR::Block* const pred : block->ImmediatePredecessors()) {
|
for (IR::Block* const pred : block->ImmediatePredecessors()) {
|
||||||
phi.Inst()->AddPhiOperand(pred, ReadVariable(variable, pred));
|
phi.AddPhiOperand(pred, ReadVariable(variable, pred));
|
||||||
}
|
}
|
||||||
return TryRemoveTrivialPhi(phi, block, UndefOpcode(variable));
|
return TryRemoveTrivialPhi(phi, block, UndefOpcode(variable));
|
||||||
}
|
}
|
||||||
|
|
||||||
IR::Value TryRemoveTrivialPhi(const IR::Value& phi, IR::Block* block, IR::Opcode undef_opcode) {
|
IR::Value TryRemoveTrivialPhi(IR::Inst& phi, IR::Block* block, IR::Opcode undef_opcode) {
|
||||||
IR::Value same;
|
IR::Value same;
|
||||||
for (const auto& pair : phi.Inst()->PhiOperands()) {
|
const size_t num_args{phi.NumArgs()};
|
||||||
const IR::Value& op{pair.second};
|
for (size_t arg_index = 0; arg_index < num_args; ++arg_index) {
|
||||||
if (op == same || op == phi) {
|
const IR::Value& op{phi.Arg(arg_index)};
|
||||||
|
if (op == same || op == IR::Value{&phi}) {
|
||||||
// Unique value or self-reference
|
// Unique value or self-reference
|
||||||
continue;
|
continue;
|
||||||
}
|
}
|
||||||
if (!same.IsEmpty()) {
|
if (!same.IsEmpty()) {
|
||||||
// The phi merges at least two values: not trivial
|
// The phi merges at least two values: not trivial
|
||||||
return phi;
|
return IR::Value{&phi};
|
||||||
}
|
}
|
||||||
same = op;
|
same = op;
|
||||||
}
|
}
|
||||||
@ -139,7 +141,7 @@ private:
|
|||||||
same = IR::Value{&*block->PrependNewInst(first_not_phi, undef_opcode)};
|
same = IR::Value{&*block->PrependNewInst(first_not_phi, undef_opcode)};
|
||||||
}
|
}
|
||||||
// Reroute all uses of phi to same and remove phi
|
// Reroute all uses of phi to same and remove phi
|
||||||
phi.Inst()->ReplaceUsesWith(same);
|
phi.ReplaceUsesWith(same);
|
||||||
// TODO: Try to recursively remove all phi users, which might have become trivial
|
// TODO: Try to recursively remove all phi users, which might have become trivial
|
||||||
return same;
|
return same;
|
||||||
}
|
}
|
||||||
|
@ -6,6 +6,7 @@
|
|||||||
|
|
||||||
#include <memory>
|
#include <memory>
|
||||||
#include <type_traits>
|
#include <type_traits>
|
||||||
|
#include <utility>
|
||||||
|
|
||||||
namespace Shader {
|
namespace Shader {
|
||||||
|
|
||||||
@ -31,14 +32,12 @@ public:
|
|||||||
|
|
||||||
void ReleaseContents() {
|
void ReleaseContents() {
|
||||||
Chunk* chunk{&root};
|
Chunk* chunk{&root};
|
||||||
if (chunk) {
|
while (chunk) {
|
||||||
const size_t free_objects{chunk->free_objects};
|
if (chunk->free_objects == chunk_size) {
|
||||||
if (free_objects == chunk_size) {
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
chunk->free_objects = chunk_size;
|
for (; chunk->free_objects < chunk_size; ++chunk->free_objects) {
|
||||||
for (size_t obj_id = free_objects; obj_id < chunk_size; ++obj_id) {
|
chunk->storage[chunk->free_objects].object.~T();
|
||||||
chunk->storage[obj_id].object.~T();
|
|
||||||
}
|
}
|
||||||
chunk = chunk->next.get();
|
chunk = chunk->next.get();
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user