Qt/Debugger: Implement "JIT" widget

13 files changed, 475 insertions, 1 deletions

diff --git a/Source/Core/DolphinQt2/CMakeLists.txt b/Source/Core/DolphinQt2/CMakeLists.txt
index a59660babc..93cab3f5bc 100644
--- a/Source/Core/DolphinQt2/CMakeLists.txt
+++ b/Source/Core/DolphinQt2/CMakeLists.txt
@@ -72,6 +72,7 @@ add_executable(dolphin-emu-qt2
   Debugger/BreakpointWidget.cpp
   Debugger/CodeViewWidget.cpp
   Debugger/CodeWidget.cpp
+  Debugger/JITWidget.cpp
   Debugger/MemoryViewWidget.cpp
   Debugger/MemoryWidget.cpp
   Debugger/NewBreakpointDialog.cpp
diff --git a/Source/Core/DolphinQt2/Debugger/CodeViewWidget.cpp b/Source/Core/DolphinQt2/Debugger/CodeViewWidget.cpp
index b04766f814..2deb4c6745 100644
--- a/Source/Core/DolphinQt2/Debugger/CodeViewWidget.cpp
+++ b/Source/Core/DolphinQt2/Debugger/CodeViewWidget.cpp
@@ -250,7 +250,7 @@ void CodeViewWidget::OnContextMenu()
   AddAction(menu, tr("Run &To Here"), this, &CodeViewWidget::OnRunToHere);
   auto* function_action =
       AddAction(menu, tr("&Add function"), this, &CodeViewWidget::OnAddFunction);
-  auto* ppc_action = AddAction(menu, tr("PPC vs x86"), this, &CodeViewWidget::OnPPCComparison);
+  auto* ppc_action = AddAction(menu, tr("PPC vs Host"), this, &CodeViewWidget::OnPPCComparison);
   auto* insert_blr_action = AddAction(menu, tr("&Insert blr"), this, &CodeViewWidget::OnInsertBLR);
   auto* insert_nop_action = AddAction(menu, tr("Insert &nop"), this, &CodeViewWidget::OnInsertNOP);
   auto* replace_action =
diff --git a/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp b/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp
index 19dff6448b..d1aa487591 100644
--- a/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp
+++ b/Source/Core/DolphinQt2/Debugger/CodeWidget.cpp
@@ -152,6 +152,9 @@ void CodeWidget::ConnectWidgets()
   connect(m_code_view, &CodeViewWidget::SymbolsChanged, this, &CodeWidget::UpdateSymbols);
   connect(m_code_view, &CodeViewWidget::BreakpointsChanged, this,
           [this] { emit BreakpointsChanged(); });
+
+  connect(m_code_view, &CodeViewWidget::RequestPPCComparison, this,
+          &CodeWidget::RequestPPCComparison);
 }
 
 void CodeWidget::OnSearchAddress()
diff --git a/Source/Core/DolphinQt2/Debugger/CodeWidget.h b/Source/Core/DolphinQt2/Debugger/CodeWidget.h
index 6739c5fa7a..b9c1a9b962 100644
--- a/Source/Core/DolphinQt2/Debugger/CodeWidget.h
+++ b/Source/Core/DolphinQt2/Debugger/CodeWidget.h
@@ -7,6 +7,8 @@
 #include <QDockWidget>
 #include <QString>
 
+#include "Common/CommonTypes.h"
+
 class CodeViewWidget;
 class QCloseEvent;
 class QLineEdit;
@@ -35,6 +37,7 @@ public:
   void Update();
 signals:
   void BreakpointsChanged();
+  void RequestPPCComparison(u32 addr);
 
 private:
   void CreateWidgets();
diff --git a/Source/Core/DolphinQt2/Debugger/JITWidget.cpp b/Source/Core/DolphinQt2/Debugger/JITWidget.cpp
new file mode 100644
index 0000000000..b0b4a772a5
--- /dev/null
+++ b/Source/Core/DolphinQt2/Debugger/JITWidget.cpp
@@ -0,0 +1,205 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "DolphinQt2/Debugger/JITWidget.h"
+
+#include <QPushButton>
+#include <QSplitter>
+#include <QTableWidget>
+#include <QTextBrowser>
+#include <QVBoxLayout>
+
+#include "Common/GekkoDisassembler.h"
+#include "Common/StringUtil.h"
+#include "Core/PowerPC/PPCAnalyst.h"
+#include "UICommon/Disassembler.h"
+
+#include "DolphinQt2/Settings.h"
+
+JITWidget::JITWidget(QWidget* parent) : QDockWidget(parent)
+{
+  setWindowTitle(tr("JIT Blocks"));
+  setAllowedAreas(Qt::AllDockWidgetAreas);
+
+  auto& settings = Settings::GetQSettings();
+
+  CreateWidgets();
+
+  restoreGeometry(settings.value(QStringLiteral("jitwidget/geometry")).toByteArray());
+  setFloating(settings.value(QStringLiteral("jitwidget/floating")).toBool());
+
+  m_table_splitter->restoreState(
+      settings.value(QStringLiteral("jitwidget/tablesplitter")).toByteArray());
+  m_asm_splitter->restoreState(
+      settings.value(QStringLiteral("jitwidget/asmsplitter")).toByteArray());
+
+  connect(&Settings::Instance(), &Settings::JITVisibilityChanged,
+          [this](bool visible) { setHidden(!visible); });
+
+  connect(&Settings::Instance(), &Settings::DebugModeToggled,
+          [this](bool enabled) { setHidden(!enabled || !Settings::Instance().IsJITVisible()); });
+
+  connect(&Settings::Instance(), &Settings::EmulationStateChanged, this, &JITWidget::Update);
+
+  setHidden(!Settings::Instance().IsJITVisible() || !Settings::Instance().IsDebugModeEnabled());
+
+  ConnectWidgets();
+
+#if defined(_M_X86)
+  m_disassembler = GetNewDisassembler("x86");
+#elif defined(_M_ARM_64)
+  m_disassembler = GetNewDisassembler("aarch64");
+#else
+  m_disassembler = GetNewDisassembler("UNK");
+#endif
+
+  Update();
+}
+
+JITWidget::~JITWidget()
+{
+  auto& settings = Settings::GetQSettings();
+
+  settings.setValue(QStringLiteral("jitwidget/geometry"), saveGeometry());
+  settings.setValue(QStringLiteral("jitwidget/floating"), isFloating());
+  settings.setValue(QStringLiteral("jitwidget/tablesplitter"), m_table_splitter->saveState());
+  settings.setValue(QStringLiteral("jitwidget/asmsplitter"), m_asm_splitter->saveState());
+}
+
+void JITWidget::CreateWidgets()
+{
+  m_table_widget = new QTableWidget;
+
+  m_table_widget->setColumnCount(7);
+  m_table_widget->setHorizontalHeaderLabels(
+      {tr("Address"), tr("PPC Size"), tr("Host Size"),
+       // i18n: The symbolic name of a code block
+       tr("Symbol"),
+       // i18n: These are the kinds of flags that a CPU uses (e.g. carry),
+       // not the kinds of flags that represent e.g. countries
+       tr("Flags"),
+       // i18n: The number of times a code block has been executed
+       tr("NumExec"),
+       // i18n: Performance cost, not monetary cost
+       tr("Cost")});
+
+  m_ppc_asm_widget = new QTextBrowser;
+  m_host_asm_widget = new QTextBrowser;
+
+  m_table_splitter = new QSplitter(Qt::Vertical);
+  m_asm_splitter = new QSplitter(Qt::Horizontal);
+
+  m_refresh_button = new QPushButton(tr("Refresh"));
+
+  m_table_splitter->addWidget(m_table_widget);
+  m_table_splitter->addWidget(m_asm_splitter);
+
+  m_asm_splitter->addWidget(m_ppc_asm_widget);
+  m_asm_splitter->addWidget(m_host_asm_widget);
+
+  QWidget* widget = new QWidget;
+  auto* layout = new QVBoxLayout;
+  widget->setLayout(layout);
+
+  layout->addWidget(m_table_splitter);
+  layout->addWidget(m_refresh_button);
+
+  setWidget(widget);
+}
+
+void JITWidget::ConnectWidgets()
+{
+  connect(m_refresh_button, &QPushButton::pressed, this, &JITWidget::Update);
+}
+
+void JITWidget::Compare(u32 address)
+{
+  m_address = address;
+  Update();
+}
+
+void JITWidget::Update()
+{
+  if (!m_address)
+  {
+    m_ppc_asm_widget->setHtml(QStringLiteral("<i>%1</i>").arg(tr("(ppc)")));
+    m_host_asm_widget->setHtml(QStringLiteral("<i>%1</i>").arg(tr("(host)")));
+    return;
+  }
+
+  // TODO: Actually do something with the table (Wx doesn't)
+
+  // Get host side code disassembly
+  u32 host_instructions_count = 0;
+  u32 host_code_size = 0;
+  std::string host_instructions_disasm;
+  host_instructions_disasm =
+      DisassembleBlock(m_disassembler.get(), &m_address, &host_instructions_count, &host_code_size);
+
+  m_host_asm_widget->setHtml(
+      QStringLiteral("<pre>%1</pre>").arg(QString::fromStdString(host_instructions_disasm)));
+
+  // == Fill in ppc box
+  u32 ppc_addr = m_address;
+  PPCAnalyst::CodeBuffer code_buffer(32000);
+  PPCAnalyst::BlockStats st;
+  PPCAnalyst::BlockRegStats gpa;
+  PPCAnalyst::BlockRegStats fpa;
+  PPCAnalyst::CodeBlock code_block;
+  PPCAnalyst::PPCAnalyzer analyzer;
+  analyzer.SetOption(PPCAnalyst::PPCAnalyzer::OPTION_CONDITIONAL_CONTINUE);
+  analyzer.SetOption(PPCAnalyst::PPCAnalyzer::OPTION_BRANCH_FOLLOW);
+
+  code_block.m_stats = &st;
+  code_block.m_gpa = &gpa;
+  code_block.m_fpa = &fpa;
+
+  if (analyzer.Analyze(ppc_addr, &code_block, &code_buffer, 32000) != 0xFFFFFFFF)
+  {
+    std::ostringstream ppc_disasm;
+    for (u32 i = 0; i < code_block.m_num_instructions; i++)
+    {
+      const PPCAnalyst::CodeOp& op = code_buffer.codebuffer[i];
+      std::string opcode = GekkoDisassembler::Disassemble(op.inst.hex, op.address);
+      ppc_disasm << std::setfill('0') << std::setw(8) << std::hex << op.address;
+      ppc_disasm << " " << opcode << std::endl;
+    }
+
+    // Add stats to the end of the ppc box since it's generally the shortest.
+    ppc_disasm << std::dec << std::endl;
+
+    // Add some generic analysis
+    if (st.isFirstBlockOfFunction)
+      ppc_disasm << "(first block of function)" << std::endl;
+    if (st.isLastBlockOfFunction)
+      ppc_disasm << "(last block of function)" << std::endl;
+
+    ppc_disasm << st.numCycles << " estimated cycles" << std::endl;
+
+    ppc_disasm << "Num instr: PPC: " << code_block.m_num_instructions
+               << " Host: " << host_instructions_count << " (blowup: "
+               << 100 * host_instructions_count / code_block.m_num_instructions - 100 << "%)"
+               << std::endl;
+
+    ppc_disasm << "Num bytes: PPC: " << code_block.m_num_instructions * 4
+               << " Host: " << host_code_size
+               << " (blowup: " << 100 * host_code_size / (4 * code_block.m_num_instructions) - 100
+               << "%)" << std::endl;
+
+    m_ppc_asm_widget->setHtml(
+        QStringLiteral("<pre>%1</pre>").arg(QString::fromStdString(ppc_disasm.str())));
+  }
+  else
+  {
+    m_host_asm_widget->setHtml(
+        QStringLiteral("<pre>%1</pre>")
+            .arg(QString::fromStdString(StringFromFormat("(non-code address: %08x)", m_address))));
+    m_ppc_asm_widget->setHtml(QStringLiteral("<i>---</i>"));
+  }
+}
+
+void JITWidget::closeEvent(QCloseEvent*)
+{
+  Settings::Instance().SetJITVisible(false);
+}
diff --git a/Source/Core/DolphinQt2/Debugger/JITWidget.h b/Source/Core/DolphinQt2/Debugger/JITWidget.h
new file mode 100644
index 0000000000..4549d39261
--- /dev/null
+++ b/Source/Core/DolphinQt2/Debugger/JITWidget.h
@@ -0,0 +1,44 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QDockWidget>
+#include <memory>
+
+#include "Common/CommonTypes.h"
+
+class QCloseEvent;
+class QSplitter;
+class QTextBrowser;
+class QTableWidget;
+class QPushButton;
+class HostDisassembler;
+
+class JITWidget : public QDockWidget
+{
+  Q_OBJECT
+public:
+  explicit JITWidget(QWidget* parent = nullptr);
+  ~JITWidget();
+
+  void Compare(u32 address);
+
+private:
+  void Update();
+  void CreateWidgets();
+  void ConnectWidgets();
+
+  void closeEvent(QCloseEvent*) override;
+
+  QTableWidget* m_table_widget;
+  QTextBrowser* m_ppc_asm_widget;
+  QTextBrowser* m_host_asm_widget;
+  QSplitter* m_table_splitter;
+  QSplitter* m_asm_splitter;
+  QPushButton* m_refresh_button;
+
+  std::unique_ptr<HostDisassembler> m_disassembler;
+  u32 m_address = 0;
+};
diff --git a/Source/Core/DolphinQt2/DolphinQt2.vcxproj b/Source/Core/DolphinQt2/DolphinQt2.vcxproj
index 1d925a3950..ed0255c4d3 100644
--- a/Source/Core/DolphinQt2/DolphinQt2.vcxproj
+++ b/Source/Core/DolphinQt2/DolphinQt2.vcxproj
@@ -98,6 +98,7 @@
     <QtMoc Include="Debugger\BreakpointWidget.h" />
     <QtMoc Include="Debugger\CodeWidget.h" />
     <QtMoc Include="Debugger\CodeViewWidget.h" />
+    <QtMoc Include="Debugger\JITWidget.h" />
     <QtMoc Include="Debugger\MemoryWidget.h" />
     <QtMoc Include="Debugger\MemoryViewWidget.h" />
     <QtMoc Include="Debugger\NewBreakpointDialog.h" />
@@ -176,6 +177,7 @@
     <ClCompile Include="$(QtMocOutPrefix)InfoWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)InterfacePane.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)IOWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)JITWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GridProxyModel.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)ListProxyModel.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)LogConfigWidget.cpp" />
@@ -257,6 +259,7 @@
     <ClCompile Include="Config\SettingsWindow.cpp" />
     <ClCompile Include="Debugger\CodeViewWidget.cpp" />
     <ClCompile Include="Debugger\CodeWidget.cpp" />
+    <ClCompile Include="Debugger\JITWidget.cpp" />
     <ClCompile Include="Debugger\MemoryWidget.cpp" />
     <ClCompile Include="Debugger\MemoryViewWidget.cpp" />
     <ClCompile Include="FIFOPlayerWindow.cpp" />
diff --git a/Source/Core/DolphinQt2/MainWindow.cpp b/Source/Core/DolphinQt2/MainWindow.cpp
index 49cf3a3af9..38170ee6cf 100644
--- a/Source/Core/DolphinQt2/MainWindow.cpp
+++ b/Source/Core/DolphinQt2/MainWindow.cpp
@@ -55,6 +55,7 @@
 #include "DolphinQt2/Config/SettingsWindow.h"
 #include "DolphinQt2/Debugger/BreakpointWidget.h"
 #include "DolphinQt2/Debugger/CodeWidget.h"
+#include "DolphinQt2/Debugger/JITWidget.h"
 #include "DolphinQt2/Debugger/MemoryWidget.h"
 #include "DolphinQt2/Debugger/RegisterWidget.h"
 #include "DolphinQt2/Debugger/WatchWidget.h"
@@ -202,6 +203,7 @@ void MainWindow::CreateComponents()
 
   m_hotkey_window = new MappingWindow(this, MappingWindow::Type::MAPPING_HOTKEYS, 0);
 
+  m_jit_widget = new JITWidget(this);
   m_log_widget = new LogWidget(this);
   m_log_config_widget = new LogConfigWidget(this);
   m_fifo_window = new FIFOPlayerWindow(this);
@@ -222,6 +224,7 @@ void MainWindow::CreateComponents()
 
   connect(m_code_widget, &CodeWidget::BreakpointsChanged, m_breakpoint_widget,
           &BreakpointWidget::Update);
+  connect(m_code_widget, &CodeWidget::RequestPPCComparison, m_jit_widget, &JITWidget::Compare);
   connect(m_memory_widget, &MemoryWidget::BreakpointsChanged, m_breakpoint_widget,
           &BreakpointWidget::Update);
 
@@ -430,6 +433,7 @@ void MainWindow::ConnectStack()
   addDockWidget(Qt::RightDockWidgetArea, m_watch_widget);
   addDockWidget(Qt::RightDockWidgetArea, m_breakpoint_widget);
   addDockWidget(Qt::RightDockWidgetArea, m_memory_widget);
+  addDockWidget(Qt::RightDockWidgetArea, m_jit_widget);
 
   tabifyDockWidget(m_log_widget, m_log_config_widget);
   tabifyDockWidget(m_log_widget, m_code_widget);
@@ -437,6 +441,7 @@ void MainWindow::ConnectStack()
   tabifyDockWidget(m_log_widget, m_watch_widget);
   tabifyDockWidget(m_log_widget, m_breakpoint_widget);
   tabifyDockWidget(m_log_widget, m_memory_widget);
+  tabifyDockWidget(m_log_widget, m_jit_widget);
 }
 
 QString MainWindow::PromptFileName()
diff --git a/Source/Core/DolphinQt2/MainWindow.h b/Source/Core/DolphinQt2/MainWindow.h
index c654dfb538..160c39ddf0 100644
--- a/Source/Core/DolphinQt2/MainWindow.h
+++ b/Source/Core/DolphinQt2/MainWindow.h
@@ -30,6 +30,7 @@ class FIFOPlayerWindow;
 class GCTASInputWindow;
 class GraphicsWindow;
 class HotkeyScheduler;
+class JITWidget;
 class LogConfigWidget;
 class LogWidget;
 class MappingWindow;
@@ -184,6 +185,7 @@ private:
 
   BreakpointWidget* m_breakpoint_widget;
   CodeWidget* m_code_widget;
+  JITWidget* m_jit_widget;
   LogWidget* m_log_widget;
   LogConfigWidget* m_log_config_widget;
   MemoryWidget* m_memory_widget;
diff --git a/Source/Core/DolphinQt2/MenuBar.cpp b/Source/Core/DolphinQt2/MenuBar.cpp
index b02fd70ad2..ec05e55e56 100644
--- a/Source/Core/DolphinQt2/MenuBar.cpp
+++ b/Source/Core/DolphinQt2/MenuBar.cpp
@@ -33,8 +33,10 @@
 #include "Core/IOS/IOS.h"
 #include "Core/IOS/USB/Bluetooth/BTEmu.h"
 #include "Core/Movie.h"
+#include "Core/PowerPC/JitInterface.h"
 #include "Core/PowerPC/PPCAnalyst.h"
 #include "Core/PowerPC/PPCSymbolDB.h"
+#include "Core/PowerPC/PowerPC.h"
 #include "Core/PowerPC/SignatureDB/SignatureDB.h"
 #include "Core/State.h"
 #include "Core/TitleDatabase.h"
@@ -57,6 +59,7 @@ MenuBar::MenuBar(QWidget* parent) : QMenuBar(parent)
   AddOptionsMenu();
   AddToolsMenu();
   AddViewMenu();
+  AddJITMenu();
   AddSymbolsMenu();
   AddHelpMenu();
 
@@ -102,6 +105,22 @@ void MenuBar::OnEmulationStateChanged(Core::State state)
   // Tools
   m_show_cheat_manager->setEnabled(Settings::Instance().GetCheatsEnabled());
 
+  // JIT
+  m_jit_interpreter_core->setEnabled(running);
+  m_jit_block_linking->setEnabled(!running);
+  m_jit_disable_cache->setEnabled(!running);
+  m_jit_clear_cache->setEnabled(running);
+  m_jit_log_coverage->setEnabled(!running);
+  m_jit_search_instruction->setEnabled(running);
+
+  for (QAction* action :
+       {m_jit_off, m_jit_loadstore_off, m_jit_loadstore_lbzx_off, m_jit_loadstore_lxz_off,
+        m_jit_loadstore_lwz_off, m_jit_loadstore_floating_off, m_jit_loadstore_paired_off,
+        m_jit_floatingpoint_off, m_jit_integer_off, m_jit_paired_off, m_jit_systemregisters_off})
+  {
+    action->setEnabled(running);
+  }
+
   // Symbols
   m_symbols->setEnabled(running);
 
@@ -124,11 +143,18 @@ void MenuBar::OnDebugModeToggled(bool enabled)
   m_show_watch->setVisible(enabled);
   m_show_breakpoints->setVisible(enabled);
   m_show_memory->setVisible(enabled);
+  m_show_jit->setVisible(enabled);
 
   if (enabled)
+  {
+    addMenu(m_jit);
     addMenu(m_symbols);
+  }
   else
+  {
+    removeAction(m_jit->menuAction());
     removeAction(m_symbols->menuAction());
+  }
 }
 
 void MenuBar::AddDVDBackupMenu(QMenu* file_menu)
@@ -410,6 +436,12 @@ void MenuBar::AddViewMenu()
   connect(&Settings::Instance(), &Settings::MemoryVisibilityChanged, m_show_memory,
           &QAction::setChecked);
 
+  m_show_jit = view_menu->addAction(tr("&JIT"));
+  m_show_jit->setCheckable(true);
+  m_show_jit->setChecked(Settings::Instance().IsJITVisible());
+  connect(m_show_jit, &QAction::toggled, &Settings::Instance(), &Settings::SetJITVisible);
+  connect(&Settings::Instance(), &Settings::JITVisibilityChanged, m_show_jit, &QAction::setChecked);
+
   view_menu->addSeparator();
 
   AddGameListTypeSection(view_menu);
@@ -654,6 +686,106 @@ void MenuBar::AddMovieMenu()
           [](bool value) { SConfig::GetInstance().m_DumpAudio = value; });
 }
 
+void MenuBar::AddJITMenu()
+{
+  m_jit = addMenu(tr("JIT"));
+
+  m_jit_interpreter_core = m_jit->addAction(tr("Interpreter Core"));
+  m_jit_interpreter_core->setCheckable(true);
+  m_jit_interpreter_core->setChecked(SConfig::GetInstance().iCPUCore == PowerPC::CORE_INTERPRETER);
+
+  m_jit->addSeparator();
+
+  m_jit_block_linking = m_jit->addAction(tr("JIT Block Linking Off"));
+  m_jit_block_linking->setCheckable(true);
+  m_jit_block_linking->setChecked(SConfig::GetInstance().bJITNoBlockLinking);
+  connect(m_jit_block_linking, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITNoBlockLinking = enabled; });
+
+  m_jit_disable_cache = m_jit->addAction(tr("Disable JIT Cache"));
+  m_jit_disable_cache->setCheckable(true);
+  m_jit_disable_cache->setChecked(SConfig::GetInstance().bJITNoBlockCache);
+  connect(m_jit_disable_cache, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITNoBlockCache = enabled; });
+
+  m_jit_clear_cache = AddAction(m_jit, tr("Clear Cache"), this, &MenuBar::ClearCache);
+
+  m_jit->addSeparator();
+
+  m_jit_log_coverage =
+      AddAction(m_jit, tr("Log JIT Instruction Coverage"), this, &MenuBar::LogInstructions);
+  m_jit_search_instruction =
+      AddAction(m_jit, tr("Search for an Instruction"), this, &MenuBar::SearchInstruction);
+
+  m_jit->addSeparator();
+
+  m_jit_off = m_jit->addAction(tr("JIT Off (JIT Core)"));
+  m_jit_off->setCheckable(true);
+  m_jit_off->setChecked(SConfig::GetInstance().bJITOff);
+  connect(m_jit_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITOff = enabled; });
+
+  m_jit_loadstore_off = m_jit->addAction(tr("JIT LoadStore Off"));
+  m_jit_loadstore_off->setCheckable(true);
+  m_jit_loadstore_off->setChecked(SConfig::GetInstance().bJITLoadStoreOff);
+  connect(m_jit_loadstore_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITLoadStoreOff = enabled; });
+
+  m_jit_loadstore_lbzx_off = m_jit->addAction(tr("JIT LoadStore lbzx Off"));
+  m_jit_loadstore_lbzx_off->setCheckable(true);
+  m_jit_loadstore_lbzx_off->setChecked(SConfig::GetInstance().bJITLoadStorelbzxOff);
+  connect(m_jit_loadstore_lbzx_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITLoadStorelbzxOff = enabled; });
+
+  m_jit_loadstore_lxz_off = m_jit->addAction(tr("JIT LoadStore lXz Off"));
+  m_jit_loadstore_lxz_off->setCheckable(true);
+  m_jit_loadstore_lxz_off->setChecked(SConfig::GetInstance().bJITLoadStorelXzOff);
+  connect(m_jit_loadstore_lxz_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITLoadStorelXzOff = enabled; });
+
+  m_jit_loadstore_lwz_off = m_jit->addAction(tr("JIT LoadStore lwz Off"));
+  m_jit_loadstore_lwz_off->setCheckable(true);
+  m_jit_loadstore_lwz_off->setChecked(SConfig::GetInstance().bJITLoadStorelwzOff);
+  connect(m_jit_loadstore_lwz_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITLoadStorelwzOff = enabled; });
+
+  m_jit_loadstore_floating_off = m_jit->addAction(tr("JIT LoadStore Floating Off"));
+  m_jit_loadstore_floating_off->setCheckable(true);
+  m_jit_loadstore_floating_off->setChecked(SConfig::GetInstance().bJITLoadStoreFloatingOff);
+  connect(m_jit_loadstore_floating_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITLoadStoreFloatingOff = enabled; });
+
+  m_jit_loadstore_paired_off = m_jit->addAction(tr("JIT LoadStore Paired Off"));
+  m_jit_loadstore_paired_off->setCheckable(true);
+  m_jit_loadstore_paired_off->setChecked(SConfig::GetInstance().bJITLoadStorePairedOff);
+  connect(m_jit_loadstore_paired_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITLoadStorePairedOff = enabled; });
+
+  m_jit_floatingpoint_off = m_jit->addAction(tr("JIT FloatingPoint Off"));
+  m_jit_floatingpoint_off->setCheckable(true);
+  m_jit_floatingpoint_off->setChecked(SConfig::GetInstance().bJITFloatingPointOff);
+  connect(m_jit_floatingpoint_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITFloatingPointOff = enabled; });
+
+  m_jit_integer_off = m_jit->addAction(tr("JIT Integer Off"));
+  m_jit_integer_off->setCheckable(true);
+  m_jit_integer_off->setChecked(SConfig::GetInstance().bJITIntegerOff);
+  connect(m_jit_integer_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITIntegerOff = enabled; });
+
+  m_jit_paired_off = m_jit->addAction(tr("JIT Paired Off"));
+  m_jit_paired_off->setCheckable(true);
+  m_jit_paired_off->setChecked(SConfig::GetInstance().bJITPairedOff);
+  connect(m_jit_paired_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITPairedOff = enabled; });
+
+  m_jit_systemregisters_off = m_jit->addAction(tr("JIT SystemRegisters Off"));
+  m_jit_systemregisters_off->setCheckable(true);
+  m_jit_systemregisters_off->setChecked(SConfig::GetInstance().bJITSystemRegistersOff);
+  connect(m_jit_systemregisters_off, &QAction::toggled,
+          [](bool enabled) { SConfig::GetInstance().bJITSystemRegistersOff = enabled; });
+}
+
 void MenuBar::AddSymbolsMenu()
 {
   m_symbols = addMenu(tr("Symbols"));
@@ -1041,3 +1173,37 @@ void MenuBar::PatchHLEFunctions()
 {
   HLE::PatchFunctions();
 }
+
+void MenuBar::ClearCache()
+{
+  Core::RunAsCPUThread(JitInterface::ClearCache);
+}
+
+void MenuBar::LogInstructions()
+{
+  PPCTables::LogCompiledInstructions();
+}
+
+void MenuBar::SearchInstruction()
+{
+  bool good;
+  QString op = QInputDialog::getText(this, tr("Search instruction"), tr("Instruction:"),
+                                     QLineEdit::Normal, QStringLiteral(""), &good);
+
+  if (!good)
+    return;
+
+  bool found = false;
+  for (u32 addr = 0x80000000; addr < 0x81800000; addr += 4)
+  {
+    auto ins_name =
+        QString::fromStdString(PPCTables::GetInstructionName(PowerPC::HostRead_U32(addr)));
+    if (op == ins_name)
+    {
+      NOTICE_LOG(POWERPC, "Found %s at %08x", op.toStdString().c_str(), addr);
+      found = true;
+    }
+  }
+  if (!found)
+    NOTICE_LOG(POWERPC, "Opcode %s not found", op.toStdString().c_str());
+}
diff --git a/Source/Core/DolphinQt2/MenuBar.h b/Source/Core/DolphinQt2/MenuBar.h
index cb2678dca6..fb2f2b9d4b 100644
--- a/Source/Core/DolphinQt2/MenuBar.h
+++ b/Source/Core/DolphinQt2/MenuBar.h
@@ -123,6 +123,7 @@ private:
   void AddToolsMenu();
   void AddHelpMenu();
   void AddMovieMenu();
+  void AddJITMenu();
   void AddSymbolsMenu();
 
   void InstallWAD();
@@ -144,6 +145,9 @@ private:
   void SaveCode();
   void CreateSignatureFile();
   void PatchHLEFunctions();
+  void ClearCache();
+  void LogInstructions();
+  void SearchInstruction();
 
   void OnSelectionChanged(std::shared_ptr<const UICommon::GameFile> game_file);
   void OnRecordingStatusChanged(bool recording);
@@ -204,7 +208,28 @@ private:
   QAction* m_show_watch;
   QAction* m_show_breakpoints;
   QAction* m_show_memory;
+  QAction* m_show_jit;
+
+  // JIT
+  QMenu* m_jit;
 
   // Symbols
   QMenu* m_symbols;
+  QAction* m_jit_interpreter_core;
+  QAction* m_jit_block_linking;
+  QAction* m_jit_disable_cache;
+  QAction* m_jit_clear_cache;
+  QAction* m_jit_log_coverage;
+  QAction* m_jit_search_instruction;
+  QAction* m_jit_off;
+  QAction* m_jit_loadstore_off;
+  QAction* m_jit_loadstore_lbzx_off;
+  QAction* m_jit_loadstore_lxz_off;
+  QAction* m_jit_loadstore_lwz_off;
+  QAction* m_jit_loadstore_floating_off;
+  QAction* m_jit_loadstore_paired_off;
+  QAction* m_jit_floatingpoint_off;
+  QAction* m_jit_integer_off;
+  QAction* m_jit_paired_off;
+  QAction* m_jit_systemregisters_off;
 };
diff --git a/Source/Core/DolphinQt2/Settings.cpp b/Source/Core/DolphinQt2/Settings.cpp
index 8a523605de..764aa62801 100644
--- a/Source/Core/DolphinQt2/Settings.cpp
+++ b/Source/Core/DolphinQt2/Settings.cpp
@@ -319,6 +319,20 @@ bool Settings::IsMemoryVisible() const
   return QSettings().value(QStringLiteral("debugger/showmemory")).toBool();
 }
 
+void Settings::SetJITVisible(bool enabled)
+{
+  if (IsJITVisible() == enabled)
+    return;
+  QSettings().setValue(QStringLiteral("debugger/showjit"), enabled);
+
+  emit JITVisibilityChanged(enabled);
+}
+
+bool Settings::IsJITVisible() const
+{
+  return QSettings().value(QStringLiteral("debugger/showjit")).toBool();
+}
+
 void Settings::SetDebugFont(QFont font)
 {
   if (GetDebugFont() != font)
diff --git a/Source/Core/DolphinQt2/Settings.h b/Source/Core/DolphinQt2/Settings.h
index dcde3434d6..335de1d005 100644
--- a/Source/Core/DolphinQt2/Settings.h
+++ b/Source/Core/DolphinQt2/Settings.h
@@ -103,6 +103,8 @@ public:
   bool IsCodeVisible() const;
   void SetMemoryVisible(bool enabled);
   bool IsMemoryVisible() const;
+  void SetJITVisible(bool enabled);
+  bool IsJITVisible() const;
   QFont GetDebugFont() const;
   void SetDebugFont(QFont font);
 
@@ -136,6 +138,7 @@ signals:
   void BreakpointsVisibilityChanged(bool visible);
   void CodeVisibilityChanged(bool visible);
   void MemoryVisibilityChanged(bool visible);
+  void JITVisibilityChanged(bool visible);
   void DebugModeToggled(bool enabled);
   void DebugFontChanged(QFont font);
   void AutoUpdateTrackChanged(const QString& mode);