Merge pull request #1927 from ReinUsesLisp/shader-ir

video_core: Replace gl_shader_decompiler with an IR based decompiler

src/video_core/CMakeLists.txt

@@ -59,6 +59,34 @@ add_library(video_core STATIC
     renderer_opengl/renderer_opengl.h
     renderer_opengl/utils.cpp
     renderer_opengl/utils.h
+    shader/decode/arithmetic.cpp
+    shader/decode/arithmetic_immediate.cpp
+    shader/decode/bfe.cpp
+    shader/decode/bfi.cpp
+    shader/decode/shift.cpp
+    shader/decode/arithmetic_integer.cpp
+    shader/decode/arithmetic_integer_immediate.cpp
+    shader/decode/arithmetic_half.cpp
+    shader/decode/arithmetic_half_immediate.cpp
+    shader/decode/ffma.cpp
+    shader/decode/hfma2.cpp
+    shader/decode/conversion.cpp
+    shader/decode/memory.cpp
+    shader/decode/float_set_predicate.cpp
+    shader/decode/integer_set_predicate.cpp
+    shader/decode/half_set_predicate.cpp
+    shader/decode/predicate_set_register.cpp
+    shader/decode/predicate_set_predicate.cpp
+    shader/decode/register_set_predicate.cpp
+    shader/decode/float_set.cpp
+    shader/decode/integer_set.cpp
+    shader/decode/half_set.cpp
+    shader/decode/video.cpp
+    shader/decode/xmad.cpp
+    shader/decode/other.cpp
+    shader/decode.cpp
+    shader/shader_ir.cpp
+    shader/shader_ir.h
     surface.cpp
     surface.h
     textures/astc.cpp

src/video_core/engines/shader_bytecode.h

@@ -397,6 +397,10 @@ struct IpaMode {
     bool operator!=(const IpaMode& a) const {
         return !operator==(a);
     }
+    bool operator<(const IpaMode& a) const {
+        return std::tie(interpolation_mode, sampling_mode) <
+               std::tie(a.interpolation_mode, a.sampling_mode);
+    }
 };
 
 enum class SystemVariable : u64 {
@@ -644,6 +648,7 @@ union Instruction {
             BitField<37, 2, HalfPrecision> precision;
             BitField<32, 1, u64> saturate;
 
+            BitField<31, 1, u64> negate_b;
             BitField<30, 1, u64> negate_c;
             BitField<35, 2, HalfType> type_c;
         } rr;
@@ -1431,6 +1436,7 @@ public:
         PredicateSetRegister,
         RegisterSetPredicate,
         Conversion,
+        Video,
         Xmad,
         Unknown,
     };
@@ -1562,8 +1568,8 @@ private:
             INST("11100000--------", Id::IPA, Type::Trivial, "IPA"),
             INST("1111101111100---", Id::OUT_R, Type::Trivial, "OUT_R"),
             INST("1110111111010---", Id::ISBERD, Type::Trivial, "ISBERD"),
-            INST("01011111--------", Id::VMAD, Type::Trivial, "VMAD"),
+            INST("01011111--------", Id::VMAD, Type::Video, "VMAD"),
-            INST("0101000011110---", Id::VSETP, Type::Trivial, "VSETP"),
+            INST("0101000011110---", Id::VSETP, Type::Video, "VSETP"),
             INST("0011001-1-------", Id::FFMA_IMM, Type::Ffma, "FFMA_IMM"),
             INST("010010011-------", Id::FFMA_CR, Type::Ffma, "FFMA_CR"),
             INST("010100011-------", Id::FFMA_RC, Type::Ffma, "FFMA_RC"),

src/video_core/engines/shader_header.h

@@ -106,7 +106,7 @@ struct Header {
         } ps;
     };
 
-    u64 GetLocalMemorySize() {
+    u64 GetLocalMemorySize() const {
         return (common1.shader_local_memory_low_size |
                 (common2.shader_local_memory_high_size << 24));
     }

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -930,7 +930,7 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, Shader& shad
     const auto& gpu = Core::System::GetInstance().GPU();
     const auto& maxwell3d = gpu.Maxwell3D();
     const auto& shader_stage = maxwell3d.state.shader_stages[static_cast<std::size_t>(stage)];
-    const auto& entries = shader->GetShaderEntries().const_buffer_entries;
+    const auto& entries = shader->GetShaderEntries().const_buffers;
 
     constexpr u64 max_binds = Tegra::Engines::Maxwell3D::Regs::MaxConstBuffers;
     std::array<GLuint, max_binds> bind_buffers;
@@ -998,7 +998,7 @@ u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, Shader& shader,
     MICROPROFILE_SCOPE(OpenGL_Texture);
     const auto& gpu = Core::System::GetInstance().GPU();
     const auto& maxwell3d = gpu.Maxwell3D();
-    const auto& entries = shader->GetShaderEntries().texture_samplers;
+    const auto& entries = shader->GetShaderEntries().samplers;
 
     ASSERT_MSG(current_unit + entries.size() <= std::size(state.texture_units),
                "Exceeded the number of active textures.");

src/video_core/renderer_opengl/gl_shader_cache.cpp

@@ -10,11 +10,15 @@
 #include "video_core/engines/maxwell_3d.h"
 #include "video_core/renderer_opengl/gl_rasterizer.h"
 #include "video_core/renderer_opengl/gl_shader_cache.h"
+#include "video_core/renderer_opengl/gl_shader_decompiler.h"
 #include "video_core/renderer_opengl/gl_shader_manager.h"
 #include "video_core/renderer_opengl/utils.h"
+#include "video_core/shader/shader_ir.h"
 
 namespace OpenGL {
 
+using VideoCommon::Shader::ProgramCode;
+
 /// Gets the address for the specified shader stage program
 static VAddr GetShaderAddress(Maxwell::ShaderProgram program) {
     const auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
@@ -24,8 +28,8 @@ static VAddr GetShaderAddress(Maxwell::ShaderProgram program) {
 }
 
 /// Gets the shader program code from memory for the specified address
-static GLShader::ProgramCode GetShaderCode(VAddr addr) {
+static ProgramCode GetShaderCode(VAddr addr) {
-    GLShader::ProgramCode program_code(GLShader::MAX_PROGRAM_CODE_LENGTH);
+    ProgramCode program_code(VideoCommon::Shader::MAX_PROGRAM_LENGTH);
     Memory::ReadBlock(addr, program_code.data(), program_code.size() * sizeof(u64));
     return program_code;
 }

src/video_core/renderer_opengl/gl_shader_cache.h

@@ -12,6 +12,7 @@
 #include "common/common_types.h"
 #include "video_core/rasterizer_cache.h"
 #include "video_core/renderer_opengl/gl_resource_manager.h"
+#include "video_core/renderer_opengl/gl_shader_decompiler.h"
 #include "video_core/renderer_opengl/gl_shader_gen.h"
 
 namespace OpenGL {

src/video_core/renderer_opengl/gl_shader_decompiler.h

@@ -5,21 +5,84 @@
 #pragma once
 
 #include <array>
-#include <functional>
-#include <optional>
 #include <string>
+#include <utility>
+#include <vector>
 #include "common/common_types.h"
 #include "video_core/engines/maxwell_3d.h"
-#include "video_core/renderer_opengl/gl_shader_gen.h"
+#include "video_core/shader/shader_ir.h"
 
-namespace OpenGL::GLShader::Decompiler {
+namespace VideoCommon::Shader {
+class ShaderIR;
+}
 
-using Tegra::Engines::Maxwell3D;
+namespace OpenGL::GLShader {
+
+using Maxwell = Tegra::Engines::Maxwell3D::Regs;
+
+class ConstBufferEntry : public VideoCommon::Shader::ConstBuffer {
+public:
+    explicit ConstBufferEntry(const VideoCommon::Shader::ConstBuffer& entry,
+                              Maxwell::ShaderStage stage, const std::string& name, u32 index)
+        : VideoCommon::Shader::ConstBuffer{entry}, stage{stage}, name{name}, index{index} {}
+
+    const std::string& GetName() const {
+        return name;
+    }
+
+    Maxwell::ShaderStage GetStage() const {
+        return stage;
+    }
+
+    u32 GetIndex() const {
+        return index;
+    }
+
+    u32 GetHash() const {
+        return (static_cast<u32>(stage) << 16) | index;
+    }
+
+private:
+    std::string name;
+    Maxwell::ShaderStage stage{};
+    u32 index{};
+};
+
+class SamplerEntry : public VideoCommon::Shader::Sampler {
+public:
+    explicit SamplerEntry(const VideoCommon::Shader::Sampler& entry, Maxwell::ShaderStage stage,
+                          const std::string& name)
+        : VideoCommon::Shader::Sampler{entry}, stage{stage}, name{name} {}
+
+    const std::string& GetName() const {
+        return name;
+    }
+
+    Maxwell::ShaderStage GetStage() const {
+        return stage;
+    }
+
+    u32 GetHash() const {
+        return (static_cast<u32>(stage) << 16) | static_cast<u32>(GetIndex());
+    }
+
+private:
+    std::string name;
+    Maxwell::ShaderStage stage{};
+};
+
+struct ShaderEntries {
+    std::vector<ConstBufferEntry> const_buffers;
+    std::vector<SamplerEntry> samplers;
+    std::array<bool, Maxwell::NumClipDistances> clip_distances{};
+    std::size_t shader_length{};
+};
+
+using ProgramResult = std::pair<std::string, ShaderEntries>;
 
 std::string GetCommonDeclarations();
 
-std::optional<ProgramResult> DecompileProgram(const ProgramCode& program_code, u32 main_offset,
+ProgramResult Decompile(const VideoCommon::Shader::ShaderIR& ir, Maxwell::ShaderStage stage,
-                                              Maxwell3D::Regs::ShaderStage stage,
                         const std::string& suffix);
 
-} // namespace OpenGL::GLShader::Decompiler
+} // namespace OpenGL::GLShader

src/video_core/renderer_opengl/gl_shader_gen.cpp

@@ -7,22 +7,25 @@
 #include "video_core/engines/maxwell_3d.h"
 #include "video_core/renderer_opengl/gl_shader_decompiler.h"
 #include "video_core/renderer_opengl/gl_shader_gen.h"
+#include "video_core/shader/shader_ir.h"
 
 namespace OpenGL::GLShader {
 
 using Tegra::Engines::Maxwell3D;
+using VideoCommon::Shader::ProgramCode;
+using VideoCommon::Shader::ShaderIR;
 
 static constexpr u32 PROGRAM_OFFSET{10};
 
 ProgramResult GenerateVertexShader(const ShaderSetup& setup) {
+    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
+
     std::string out = "#version 430 core\n";
     out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
-    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
     out += "// Shader Unique Id: VS" + id + "\n\n";
-    out += Decompiler::GetCommonDeclarations();
+    out += GetCommonDeclarations();
 
     out += R"(
-
 layout (location = 0) out vec4 position;
 
 layout(std140) uniform vs_config {
@@ -30,40 +33,32 @@ layout(std140) uniform vs_config {
     uvec4 config_pack; // instance_id, flip_stage, y_direction, padding
     uvec4 alpha_test;
 };
+
 )";
-
+    ShaderIR program_ir(setup.program.code, PROGRAM_OFFSET);
-    if (setup.IsDualProgram()) {
+    ProgramResult program = Decompile(program_ir, Maxwell3D::Regs::ShaderStage::Vertex, "vertex");
-        out += "bool exec_vertex_b();\n";
-    }
-
-    ProgramResult program =
-        Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
-                                     Maxwell3D::Regs::ShaderStage::Vertex, "vertex")
-            .value_or(ProgramResult());
 
     out += program.first;
 
     if (setup.IsDualProgram()) {
+        ShaderIR program_ir_b(setup.program.code_b, PROGRAM_OFFSET);
         ProgramResult program_b =
-            Decompiler::DecompileProgram(setup.program.code_b, PROGRAM_OFFSET,
+            Decompile(program_ir_b, Maxwell3D::Regs::ShaderStage::Vertex, "vertex_b");
-                                         Maxwell3D::Regs::ShaderStage::Vertex, "vertex_b")
+
-                .value_or(ProgramResult());
         out += program_b.first;
     }
 
     out += R"(
-
 void main() {
     position = vec4(0.0, 0.0, 0.0, 0.0);
-    exec_vertex();
+    execute_vertex();
 )";
 
     if (setup.IsDualProgram()) {
-        out += "    exec_vertex_b();";
+        out += "    execute_vertex_b();";
     }
 
     out += R"(
-
     // Check if the flip stage is VertexB
     // Config pack's second value is flip_stage
     if (config_pack[1] == 1) {
@@ -77,30 +72,20 @@ void main() {
     if (config_pack[1] == 1) {
         position.w = 1.0;
     }
-}
+})";
-
-)";
 
     return {out, program.second};
 }
 
 ProgramResult GenerateGeometryShader(const ShaderSetup& setup) {
     // Version is intentionally skipped in shader generation, it's added by the lazy compilation.
-    std::string out = "#extension GL_ARB_separate_shader_objects : enable\n\n";
     const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
+
+    std::string out = "#extension GL_ARB_separate_shader_objects : enable\n\n";
     out += "// Shader Unique Id: GS" + id + "\n\n";
-    out += Decompiler::GetCommonDeclarations();
+    out += GetCommonDeclarations();
-    out += "bool exec_geometry();\n";
 
-    ProgramResult program =
-        Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
-                                     Maxwell3D::Regs::ShaderStage::Geometry, "geometry")
-            .value_or(ProgramResult());
     out += R"(
-out gl_PerVertex {
-    vec4 gl_Position;
-};
-
 layout (location = 0) in vec4 gs_position[];
 layout (location = 0) out vec4 position;
 
@@ -110,27 +95,28 @@ layout (std140) uniform gs_config {
     uvec4 alpha_test;
 };
 
-void main() {
-    exec_geometry();
-}
-
 )";
+    ShaderIR program_ir(setup.program.code, PROGRAM_OFFSET);
+    ProgramResult program =
+        Decompile(program_ir, Maxwell3D::Regs::ShaderStage::Geometry, "geometry");
     out += program.first;
+
+    out += R"(
+void main() {
+    execute_geometry();
+};)";
+
     return {out, program.second};
 }
 
 ProgramResult GenerateFragmentShader(const ShaderSetup& setup) {
+    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
+
     std::string out = "#version 430 core\n";
     out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
-    const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
     out += "// Shader Unique Id: FS" + id + "\n\n";
-    out += Decompiler::GetCommonDeclarations();
+    out += GetCommonDeclarations();
-    out += "bool exec_fragment();\n";
 
-    ProgramResult program =
-        Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
-                                     Maxwell3D::Regs::ShaderStage::Fragment, "fragment")
-            .value_or(ProgramResult());
     out += R"(
 layout (location = 0) out vec4 FragColor0;
 layout (location = 1) out vec4 FragColor1;
@@ -173,12 +159,20 @@ bool AlphaFunc(in float value) {
     }
 }
 
+)";
+    ShaderIR program_ir(setup.program.code, PROGRAM_OFFSET);
+    ProgramResult program =
+        Decompile(program_ir, Maxwell3D::Regs::ShaderStage::Fragment, "fragment");
+
+    out += program.first;
+
+    out += R"(
 void main() {
-    exec_fragment();
+    execute_fragment();
 }
 
 )";
-    out += program.first;
     return {out, program.second};
 }
+
 } // namespace OpenGL::GLShader

src/video_core/renderer_opengl/gl_shader_gen.h

@@ -10,164 +10,12 @@
 
 #include "common/common_types.h"
 #include "video_core/engines/shader_bytecode.h"
+#include "video_core/renderer_opengl/gl_shader_decompiler.h"
+#include "video_core/shader/shader_ir.h"
 
 namespace OpenGL::GLShader {
 
-constexpr std::size_t MAX_PROGRAM_CODE_LENGTH{0x1000};
+using VideoCommon::Shader::ProgramCode;
-using ProgramCode = std::vector<u64>;
-
-enum : u32 { POSITION_VARYING_LOCATION = 0, GENERIC_VARYING_START_LOCATION = 1 };
-
-class ConstBufferEntry {
-    using Maxwell = Tegra::Engines::Maxwell3D::Regs;
-
-public:
-    void MarkAsUsed(u64 index, u64 offset, Maxwell::ShaderStage stage) {
-        is_used = true;
-        this->index = static_cast<unsigned>(index);
-        this->stage = stage;
-        max_offset = std::max(max_offset, static_cast<unsigned>(offset));
-    }
-
-    void MarkAsUsedIndirect(u64 index, Maxwell::ShaderStage stage) {
-        is_used = true;
-        is_indirect = true;
-        this->index = static_cast<unsigned>(index);
-        this->stage = stage;
-    }
-
-    bool IsUsed() const {
-        return is_used;
-    }
-
-    bool IsIndirect() const {
-        return is_indirect;
-    }
-
-    unsigned GetIndex() const {
-        return index;
-    }
-
-    unsigned GetSize() const {
-        return max_offset + 1;
-    }
-
-    std::string GetName() const {
-        return BufferBaseNames[static_cast<std::size_t>(stage)] + std::to_string(index);
-    }
-
-    u32 GetHash() const {
-        return (static_cast<u32>(stage) << 16) | index;
-    }
-
-private:
-    static constexpr std::array<const char*, Maxwell::MaxShaderStage> BufferBaseNames = {
-        "buffer_vs_c", "buffer_tessc_c", "buffer_tesse_c", "buffer_gs_c", "buffer_fs_c",
-    };
-
-    bool is_used{};
-    bool is_indirect{};
-    unsigned index{};
-    unsigned max_offset{};
-    Maxwell::ShaderStage stage;
-};
-
-class SamplerEntry {
-    using Maxwell = Tegra::Engines::Maxwell3D::Regs;
-
-public:
-    SamplerEntry(Maxwell::ShaderStage stage, std::size_t offset, std::size_t index,
-                 Tegra::Shader::TextureType type, bool is_array, bool is_shadow)
-        : offset(offset), stage(stage), sampler_index(index), type(type), is_array(is_array),
-          is_shadow(is_shadow) {}
-
-    std::size_t GetOffset() const {
-        return offset;
-    }
-
-    std::size_t GetIndex() const {
-        return sampler_index;
-    }
-
-    Maxwell::ShaderStage GetStage() const {
-        return stage;
-    }
-
-    std::string GetName() const {
-        return std::string(TextureSamplerNames[static_cast<std::size_t>(stage)]) + '_' +
-               std::to_string(sampler_index);
-    }
-
-    std::string GetTypeString() const {
-        using Tegra::Shader::TextureType;
-        std::string glsl_type;
-
-        switch (type) {
-        case TextureType::Texture1D:
-            glsl_type = "sampler1D";
-            break;
-        case TextureType::Texture2D:
-            glsl_type = "sampler2D";
-            break;
-        case TextureType::Texture3D:
-            glsl_type = "sampler3D";
-            break;
-        case TextureType::TextureCube:
-            glsl_type = "samplerCube";
-            break;
-        default:
-            UNIMPLEMENTED();
-        }
-        if (is_array)
-            glsl_type += "Array";
-        if (is_shadow)
-            glsl_type += "Shadow";
-        return glsl_type;
-    }
-
-    Tegra::Shader::TextureType GetType() const {
-        return type;
-    }
-
-    bool IsArray() const {
-        return is_array;
-    }
-
-    bool IsShadow() const {
-        return is_shadow;
-    }
-
-    u32 GetHash() const {
-        return (static_cast<u32>(stage) << 16) | static_cast<u32>(sampler_index);
-    }
-
-    static std::string GetArrayName(Maxwell::ShaderStage stage) {
-        return TextureSamplerNames[static_cast<std::size_t>(stage)];
-    }
-
-private:
-    static constexpr std::array<const char*, Maxwell::MaxShaderStage> TextureSamplerNames = {
-        "tex_vs", "tex_tessc", "tex_tesse", "tex_gs", "tex_fs",
-    };
-
-    /// Offset in TSC memory from which to read the sampler object, as specified by the sampling
-    /// instruction.
-    std::size_t offset;
-    Maxwell::ShaderStage stage;      ///< Shader stage where this sampler was used.
-    std::size_t sampler_index;       ///< Value used to index into the generated GLSL sampler array.
-    Tegra::Shader::TextureType type; ///< The type used to sample this texture (Texture2D, etc)
-    bool is_array;  ///< Whether the texture is being sampled as an array texture or not.
-    bool is_shadow; ///< Whether the texture is being sampled as a depth texture or not.
-};
-
-struct ShaderEntries {
-    std::vector<ConstBufferEntry> const_buffer_entries;
-    std::vector<SamplerEntry> texture_samplers;
-    std::array<bool, Tegra::Engines::Maxwell3D::Regs::NumClipDistances> clip_distances;
-    std::size_t shader_length;
-};
-
-using ProgramResult = std::pair<std::string, ShaderEntries>;
 
 struct ShaderSetup {
     explicit ShaderSetup(ProgramCode program_code) {

src/video_core/shader/decode.cpp

@@ -0,0 +1,206 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstring>
+#include <set>
+
+#include <fmt/format.h>
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/engines/shader_header.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+namespace {
+
+/// Merges exit method of two parallel branches.
+constexpr ExitMethod ParallelExit(ExitMethod a, ExitMethod b) {
+    if (a == ExitMethod::Undetermined) {
+        return b;
+    }
+    if (b == ExitMethod::Undetermined) {
+        return a;
+    }
+    if (a == b) {
+        return a;
+    }
+    return ExitMethod::Conditional;
+}
+
+/**
+ * Returns whether the instruction at the specified offset is a 'sched' instruction.
+ * Sched instructions always appear before a sequence of 3 instructions.
+ */
+constexpr bool IsSchedInstruction(u32 offset, u32 main_offset) {
+    constexpr u32 SchedPeriod = 4;
+    u32 absolute_offset = offset - main_offset;
+
+    return (absolute_offset % SchedPeriod) == 0;
+}
+
+} // namespace
+
+void ShaderIR::Decode() {
+    std::memcpy(&header, program_code.data(), sizeof(Tegra::Shader::Header));
+
+    std::set<u32> labels;
+    const ExitMethod exit_method = Scan(main_offset, MAX_PROGRAM_LENGTH, labels);
+    if (exit_method != ExitMethod::AlwaysEnd) {
+        UNREACHABLE_MSG("Program does not always end");
+    }
+
+    if (labels.empty()) {
+        basic_blocks.insert({main_offset, DecodeRange(main_offset, MAX_PROGRAM_LENGTH)});
+        return;
+    }
+
+    labels.insert(main_offset);
+
+    for (const u32 label : labels) {
+        const auto next_it = labels.lower_bound(label + 1);
+        const u32 next_label = next_it == labels.end() ? MAX_PROGRAM_LENGTH : *next_it;
+
+        basic_blocks.insert({label, DecodeRange(label, next_label)});
+    }
+}
+
+ExitMethod ShaderIR::Scan(u32 begin, u32 end, std::set<u32>& labels) {
+    const auto [iter, inserted] =
+        exit_method_map.emplace(std::make_pair(begin, end), ExitMethod::Undetermined);
+    ExitMethod& exit_method = iter->second;
+    if (!inserted)
+        return exit_method;
+
+    for (u32 offset = begin; offset != end && offset != MAX_PROGRAM_LENGTH; ++offset) {
+        coverage_begin = std::min(coverage_begin, offset);
+        coverage_end = std::max(coverage_end, offset + 1);
+
+        const Instruction instr = {program_code[offset]};
+        const auto opcode = OpCode::Decode(instr);
+        if (!opcode)
+            continue;
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::EXIT: {
+            // The EXIT instruction can be predicated, which means that the shader can conditionally
+            // end on this instruction. We have to consider the case where the condition is not met
+            // and check the exit method of that other basic block.
+            using Tegra::Shader::Pred;
+            if (instr.pred.pred_index == static_cast<u64>(Pred::UnusedIndex)) {
+                return exit_method = ExitMethod::AlwaysEnd;
+            } else {
+                const ExitMethod not_met = Scan(offset + 1, end, labels);
+                return exit_method = ParallelExit(ExitMethod::AlwaysEnd, not_met);
+            }
+        }
+        case OpCode::Id::BRA: {
+            const u32 target = offset + instr.bra.GetBranchTarget();
+            labels.insert(target);
+            const ExitMethod no_jmp = Scan(offset + 1, end, labels);
+            const ExitMethod jmp = Scan(target, end, labels);
+            return exit_method = ParallelExit(no_jmp, jmp);
+        }
+        case OpCode::Id::SSY:
+        case OpCode::Id::PBK: {
+            // The SSY and PBK use a similar encoding as the BRA instruction.
+            UNIMPLEMENTED_IF_MSG(instr.bra.constant_buffer != 0,
+                                 "Constant buffer branching is not supported");
+            const u32 target = offset + instr.bra.GetBranchTarget();
+            labels.insert(target);
+            // Continue scanning for an exit method.
+            break;
+        }
+        }
+    }
+    return exit_method = ExitMethod::AlwaysReturn;
+}
+
+BasicBlock ShaderIR::DecodeRange(u32 begin, u32 end) {
+    BasicBlock basic_block;
+    for (u32 pc = begin; pc < (begin > end ? MAX_PROGRAM_LENGTH : end);) {
+        pc = DecodeInstr(basic_block, pc);
+    }
+    return std::move(basic_block);
+}
+
+u32 ShaderIR::DecodeInstr(BasicBlock& bb, u32 pc) {
+    // Ignore sched instructions when generating code.
+    if (IsSchedInstruction(pc, main_offset)) {
+        return pc + 1;
+    }
+
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    // Decoding failure
+    if (!opcode) {
+        UNIMPLEMENTED_MSG("Unhandled instruction: {0:x}", instr.value);
+        return pc + 1;
+    }
+
+    bb.push_back(
+        Comment(fmt::format("{}: {} (0x{:016x})", pc, opcode->get().GetName(), instr.value)));
+
+    using Tegra::Shader::Pred;
+    UNIMPLEMENTED_IF_MSG(instr.pred.full_pred == Pred::NeverExecute,
+                         "NeverExecute predicate not implemented");
+
+    static const std::map<OpCode::Type, u32 (ShaderIR::*)(BasicBlock&, const BasicBlock&, u32)>
+        decoders = {
+            {OpCode::Type::Arithmetic, &ShaderIR::DecodeArithmetic},
+            {OpCode::Type::ArithmeticImmediate, &ShaderIR::DecodeArithmeticImmediate},
+            {OpCode::Type::Bfe, &ShaderIR::DecodeBfe},
+            {OpCode::Type::Bfi, &ShaderIR::DecodeBfi},
+            {OpCode::Type::Shift, &ShaderIR::DecodeShift},
+            {OpCode::Type::ArithmeticInteger, &ShaderIR::DecodeArithmeticInteger},
+            {OpCode::Type::ArithmeticIntegerImmediate, &ShaderIR::DecodeArithmeticIntegerImmediate},
+            {OpCode::Type::ArithmeticHalf, &ShaderIR::DecodeArithmeticHalf},
+            {OpCode::Type::ArithmeticHalfImmediate, &ShaderIR::DecodeArithmeticHalfImmediate},
+            {OpCode::Type::Ffma, &ShaderIR::DecodeFfma},
+            {OpCode::Type::Hfma2, &ShaderIR::DecodeHfma2},
+            {OpCode::Type::Conversion, &ShaderIR::DecodeConversion},
+            {OpCode::Type::Memory, &ShaderIR::DecodeMemory},
+            {OpCode::Type::FloatSetPredicate, &ShaderIR::DecodeFloatSetPredicate},
+            {OpCode::Type::IntegerSetPredicate, &ShaderIR::DecodeIntegerSetPredicate},
+            {OpCode::Type::HalfSetPredicate, &ShaderIR::DecodeHalfSetPredicate},
+            {OpCode::Type::PredicateSetRegister, &ShaderIR::DecodePredicateSetRegister},
+            {OpCode::Type::PredicateSetPredicate, &ShaderIR::DecodePredicateSetPredicate},
+            {OpCode::Type::RegisterSetPredicate, &ShaderIR::DecodeRegisterSetPredicate},
+            {OpCode::Type::FloatSet, &ShaderIR::DecodeFloatSet},
+            {OpCode::Type::IntegerSet, &ShaderIR::DecodeIntegerSet},
+            {OpCode::Type::HalfSet, &ShaderIR::DecodeHalfSet},
+            {OpCode::Type::Video, &ShaderIR::DecodeVideo},
+            {OpCode::Type::Xmad, &ShaderIR::DecodeXmad},
+        };
+
+    std::vector<Node> tmp_block;
+    if (const auto decoder = decoders.find(opcode->get().GetType()); decoder != decoders.end()) {
+        pc = (this->*decoder->second)(tmp_block, bb, pc);
+    } else {
+        pc = DecodeOther(tmp_block, bb, pc);
+    }
+
+    // Some instructions (like SSY) don't have a predicate field, they are always unconditionally
+    // executed.
+    const bool can_be_predicated = OpCode::IsPredicatedInstruction(opcode->get().GetId());
+    const auto pred_index = static_cast<u32>(instr.pred.pred_index);
+
+    if (can_be_predicated && pred_index != static_cast<u32>(Pred::UnusedIndex)) {
+        bb.push_back(
+            Conditional(GetPredicate(pred_index, instr.negate_pred != 0), std::move(tmp_block)));
+    } else {
+        for (auto& node : tmp_block) {
+            bb.push_back(std::move(node));
+        }
+    }
+
+    return pc + 1;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/arithmetic.cpp

@@ -0,0 +1,155 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::SubOp;
+
+u32 ShaderIR::DecodeArithmetic(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    Node op_a = GetRegister(instr.gpr8);
+
+    Node op_b = [&]() -> Node {
+        if (instr.is_b_imm) {
+            return GetImmediate19(instr);
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::MOV_C:
+    case OpCode::Id::MOV_R: {
+        // MOV does not have neither 'abs' nor 'neg' bits.
+        SetRegister(bb, instr.gpr0, op_b);
+        break;
+    }
+    case OpCode::Id::FMUL_C:
+    case OpCode::Id::FMUL_R:
+    case OpCode::Id::FMUL_IMM: {
+        // FMUL does not have 'abs' bits and only the second operand has a 'neg' bit.
+        UNIMPLEMENTED_IF_MSG(instr.fmul.tab5cb8_2 != 0, "FMUL tab5cb8_2({}) is not implemented",
+                             instr.fmul.tab5cb8_2.Value());
+        UNIMPLEMENTED_IF_MSG(
+            instr.fmul.tab5c68_0 != 1, "FMUL tab5cb8_0({}) is not implemented",
+            instr.fmul.tab5c68_0.Value()); // SMO typical sends 1 here which seems to be the default
+
+        op_b = GetOperandAbsNegFloat(op_b, false, instr.fmul.negate_b);
+
+        // TODO(Rodrigo): Should precise be used when there's a postfactor?
+        Node value = Operation(OperationCode::FMul, PRECISE, op_a, op_b);
+
+        if (instr.fmul.postfactor != 0) {
+            auto postfactor = static_cast<s32>(instr.fmul.postfactor);
+
+            // Postfactor encoded as 3-bit 1's complement in instruction, interpreted with below
+            // logic.
+            if (postfactor >= 4) {
+                postfactor = 7 - postfactor;
+            } else {
+                postfactor = 0 - postfactor;
+            }
+
+            if (postfactor > 0) {
+                value = Operation(OperationCode::FMul, NO_PRECISE, value,
+                                  Immediate(static_cast<f32>(1 << postfactor)));
+            } else {
+                value = Operation(OperationCode::FDiv, NO_PRECISE, value,
+                                  Immediate(static_cast<f32>(1 << -postfactor)));
+            }
+        }
+
+        value = GetSaturatedFloat(value, instr.alu.saturate_d);
+
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::FADD_C:
+    case OpCode::Id::FADD_R:
+    case OpCode::Id::FADD_IMM: {
+        op_a = GetOperandAbsNegFloat(op_a, instr.alu.abs_a, instr.alu.negate_a);
+        op_b = GetOperandAbsNegFloat(op_b, instr.alu.abs_b, instr.alu.negate_b);
+
+        Node value = Operation(OperationCode::FAdd, PRECISE, op_a, op_b);
+        value = GetSaturatedFloat(value, instr.alu.saturate_d);
+
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::MUFU: {
+        op_a = GetOperandAbsNegFloat(op_a, instr.alu.abs_a, instr.alu.negate_a);
+
+        Node value = [&]() {
+            switch (instr.sub_op) {
+            case SubOp::Cos:
+                return Operation(OperationCode::FCos, PRECISE, op_a);
+            case SubOp::Sin:
+                return Operation(OperationCode::FSin, PRECISE, op_a);
+            case SubOp::Ex2:
+                return Operation(OperationCode::FExp2, PRECISE, op_a);
+            case SubOp::Lg2:
+                return Operation(OperationCode::FLog2, PRECISE, op_a);
+            case SubOp::Rcp:
+                return Operation(OperationCode::FDiv, PRECISE, Immediate(1.0f), op_a);
+            case SubOp::Rsq:
+                return Operation(OperationCode::FInverseSqrt, PRECISE, op_a);
+            case SubOp::Sqrt:
+                return Operation(OperationCode::FSqrt, PRECISE, op_a);
+            default:
+                UNIMPLEMENTED_MSG("Unhandled MUFU sub op={0:x}",
+                                  static_cast<unsigned>(instr.sub_op.Value()));
+                return Immediate(0);
+            }
+        }();
+        value = GetSaturatedFloat(value, instr.alu.saturate_d);
+
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::FMNMX_C:
+    case OpCode::Id::FMNMX_R:
+    case OpCode::Id::FMNMX_IMM: {
+        op_a = GetOperandAbsNegFloat(op_a, instr.alu.abs_a, instr.alu.negate_a);
+        op_b = GetOperandAbsNegFloat(op_b, instr.alu.abs_b, instr.alu.negate_b);
+
+        const Node condition = GetPredicate(instr.alu.fmnmx.pred, instr.alu.fmnmx.negate_pred != 0);
+
+        const Node min = Operation(OperationCode::FMin, NO_PRECISE, op_a, op_b);
+        const Node max = Operation(OperationCode::FMax, NO_PRECISE, op_a, op_b);
+        const Node value = Operation(OperationCode::Select, NO_PRECISE, condition, min, max);
+
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::RRO_C:
+    case OpCode::Id::RRO_R:
+    case OpCode::Id::RRO_IMM: {
+        // Currently RRO is only implemented as a register move.
+        op_b = GetOperandAbsNegFloat(op_b, instr.alu.abs_b, instr.alu.negate_b);
+        SetRegister(bb, instr.gpr0, op_b);
+        LOG_WARNING(HW_GPU, "RRO instruction is incomplete");
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled arithmetic instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/arithmetic_half.cpp

@@ -0,0 +1,70 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeArithmeticHalf(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    if (opcode->get().GetId() == OpCode::Id::HADD2_C ||
+        opcode->get().GetId() == OpCode::Id::HADD2_R) {
+        UNIMPLEMENTED_IF(instr.alu_half.ftz != 0);
+    }
+    UNIMPLEMENTED_IF_MSG(instr.alu_half.saturate != 0, "Half float saturation not implemented");
+
+    const bool negate_a =
+        opcode->get().GetId() != OpCode::Id::HMUL2_R && instr.alu_half.negate_a != 0;
+    const bool negate_b =
+        opcode->get().GetId() != OpCode::Id::HMUL2_C && instr.alu_half.negate_b != 0;
+
+    const Node op_a = GetOperandAbsNegHalf(GetRegister(instr.gpr8), instr.alu_half.abs_a, negate_a);
+
+    // instr.alu_half.type_a
+
+    Node op_b = [&]() {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::HADD2_C:
+        case OpCode::Id::HMUL2_C:
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        case OpCode::Id::HADD2_R:
+        case OpCode::Id::HMUL2_R:
+            return GetRegister(instr.gpr20);
+        default:
+            UNREACHABLE();
+            return Immediate(0);
+        }
+    }();
+    op_b = GetOperandAbsNegHalf(op_b, instr.alu_half.abs_b, negate_b);
+
+    Node value = [&]() {
+        MetaHalfArithmetic meta{true, {instr.alu_half_imm.type_a, instr.alu_half.type_b}};
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::HADD2_C:
+        case OpCode::Id::HADD2_R:
+            return Operation(OperationCode::HAdd, meta, op_a, op_b);
+        case OpCode::Id::HMUL2_C:
+        case OpCode::Id::HMUL2_R:
+            return Operation(OperationCode::HMul, meta, op_a, op_b);
+        default:
+            UNIMPLEMENTED_MSG("Unhandled half float instruction: {}", opcode->get().GetName());
+            return Immediate(0);
+        }
+    }();
+    value = HalfMerge(GetRegister(instr.gpr0), value, instr.alu_half.merge);
+
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/arithmetic_half_immediate.cpp

@@ -0,0 +1,51 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeArithmeticHalfImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    if (opcode->get().GetId() == OpCode::Id::HADD2_IMM) {
+        UNIMPLEMENTED_IF(instr.alu_half_imm.ftz != 0);
+    } else {
+        UNIMPLEMENTED_IF(instr.alu_half_imm.precision != Tegra::Shader::HalfPrecision::None);
+    }
+    UNIMPLEMENTED_IF_MSG(instr.alu_half_imm.saturate != 0,
+                         "Half float immediate saturation not implemented");
+
+    Node op_a = GetRegister(instr.gpr8);
+    op_a = GetOperandAbsNegHalf(op_a, instr.alu_half_imm.abs_a, instr.alu_half_imm.negate_a);
+
+    const Node op_b = UnpackHalfImmediate(instr, true);
+
+    Node value = [&]() {
+        MetaHalfArithmetic meta{true, {instr.alu_half_imm.type_a}};
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::HADD2_IMM:
+            return Operation(OperationCode::HAdd, meta, op_a, op_b);
+        case OpCode::Id::HMUL2_IMM:
+            return Operation(OperationCode::HMul, meta, op_a, op_b);
+        default:
+            UNREACHABLE();
+            return Immediate(0);
+        }
+    }();
+    value = HalfMerge(GetRegister(instr.gpr0), value, instr.alu_half_imm.merge);
+
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/arithmetic_immediate.cpp

@@ -0,0 +1,52 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeArithmeticImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::MOV32_IMM: {
+        SetRegister(bb, instr.gpr0, GetImmediate32(instr));
+        break;
+    }
+    case OpCode::Id::FMUL32_IMM: {
+        Node value =
+            Operation(OperationCode::FMul, PRECISE, GetRegister(instr.gpr8), GetImmediate32(instr));
+        value = GetSaturatedFloat(value, instr.fmul32.saturate);
+
+        SetInternalFlagsFromFloat(bb, value, instr.op_32.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::FADD32I: {
+        const Node op_a = GetOperandAbsNegFloat(GetRegister(instr.gpr8), instr.fadd32i.abs_a,
+                                                instr.fadd32i.negate_a);
+        const Node op_b = GetOperandAbsNegFloat(GetImmediate32(instr), instr.fadd32i.abs_b,
+                                                instr.fadd32i.negate_b);
+
+        const Node value = Operation(OperationCode::FAdd, PRECISE, op_a, op_b);
+        SetInternalFlagsFromFloat(bb, value, instr.op_32.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled arithmetic immediate instruction: {}",
+                          opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/arithmetic_integer.cpp

@@ -0,0 +1,287 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::IAdd3Height;
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+using Tegra::Shader::Register;
+
+u32 ShaderIR::DecodeArithmeticInteger(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    Node op_a = GetRegister(instr.gpr8);
+    Node op_b = [&]() {
+        if (instr.is_b_imm) {
+            return Immediate(instr.alu.GetSignedImm20_20());
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::IADD_C:
+    case OpCode::Id::IADD_R:
+    case OpCode::Id::IADD_IMM: {
+        UNIMPLEMENTED_IF_MSG(instr.alu.saturate_d, "IADD saturation not implemented");
+
+        op_a = GetOperandAbsNegInteger(op_a, false, instr.alu_integer.negate_a, true);
+        op_b = GetOperandAbsNegInteger(op_b, false, instr.alu_integer.negate_b, true);
+
+        const Node value = Operation(OperationCode::IAdd, PRECISE, op_a, op_b);
+
+        SetInternalFlagsFromInteger(bb, value, instr.op_32.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::IADD3_C:
+    case OpCode::Id::IADD3_R:
+    case OpCode::Id::IADD3_IMM: {
+        Node op_c = GetRegister(instr.gpr39);
+
+        const auto ApplyHeight = [&](IAdd3Height height, Node value) {
+            switch (height) {
+            case IAdd3Height::None:
+                return value;
+            case IAdd3Height::LowerHalfWord:
+                return BitfieldExtract(value, 0, 16);
+            case IAdd3Height::UpperHalfWord:
+                return BitfieldExtract(value, 16, 16);
+            default:
+                UNIMPLEMENTED_MSG("Unhandled IADD3 height: {}", static_cast<u32>(height));
+                return Immediate(0);
+            }
+        };
+
+        if (opcode->get().GetId() == OpCode::Id::IADD3_R) {
+            op_a = ApplyHeight(instr.iadd3.height_a, op_a);
+            op_b = ApplyHeight(instr.iadd3.height_b, op_b);
+            op_c = ApplyHeight(instr.iadd3.height_c, op_c);
+        }
+
+        op_a = GetOperandAbsNegInteger(op_a, false, instr.iadd3.neg_a, true);
+        op_b = GetOperandAbsNegInteger(op_b, false, instr.iadd3.neg_b, true);
+        op_c = GetOperandAbsNegInteger(op_c, false, instr.iadd3.neg_c, true);
+
+        const Node value = [&]() {
+            const Node add_ab = Operation(OperationCode::IAdd, NO_PRECISE, op_a, op_b);
+            if (opcode->get().GetId() != OpCode::Id::IADD3_R) {
+                return Operation(OperationCode::IAdd, NO_PRECISE, add_ab, op_c);
+            }
+            const Node shifted = [&]() {
+                switch (instr.iadd3.mode) {
+                case Tegra::Shader::IAdd3Mode::RightShift:
+                    // TODO(tech4me): According to
+                    // https://envytools.readthedocs.io/en/latest/hw/graph/maxwell/cuda/int.html?highlight=iadd3
+                    // The addition between op_a and op_b should be done in uint33, more
+                    // investigation required
+                    return Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, add_ab,
+                                     Immediate(16));
+                case Tegra::Shader::IAdd3Mode::LeftShift:
+                    return Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, add_ab,
+                                     Immediate(16));
+                default:
+                    return add_ab;
+                }
+            }();
+            return Operation(OperationCode::IAdd, NO_PRECISE, shifted, op_c);
+        }();
+
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::ISCADD_C:
+    case OpCode::Id::ISCADD_R:
+    case OpCode::Id::ISCADD_IMM: {
+        UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                             "Condition codes generation in ISCADD is not implemented");
+
+        op_a = GetOperandAbsNegInteger(op_a, false, instr.alu_integer.negate_a, true);
+        op_b = GetOperandAbsNegInteger(op_b, false, instr.alu_integer.negate_b, true);
+
+        const Node shift = Immediate(static_cast<u32>(instr.alu_integer.shift_amount));
+        const Node shifted_a = Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, op_a, shift);
+        const Node value = Operation(OperationCode::IAdd, NO_PRECISE, shifted_a, op_b);
+
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::POPC_C:
+    case OpCode::Id::POPC_R:
+    case OpCode::Id::POPC_IMM: {
+        if (instr.popc.invert) {
+            op_b = Operation(OperationCode::IBitwiseNot, NO_PRECISE, op_b);
+        }
+        const Node value = Operation(OperationCode::IBitCount, PRECISE, op_b);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::SEL_C:
+    case OpCode::Id::SEL_R:
+    case OpCode::Id::SEL_IMM: {
+        const Node condition = GetPredicate(instr.sel.pred, instr.sel.neg_pred != 0);
+        const Node value = Operation(OperationCode::Select, PRECISE, condition, op_a, op_b);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::LOP_C:
+    case OpCode::Id::LOP_R:
+    case OpCode::Id::LOP_IMM: {
+        if (instr.alu.lop.invert_a)
+            op_a = Operation(OperationCode::IBitwiseNot, NO_PRECISE, op_a);
+        if (instr.alu.lop.invert_b)
+            op_b = Operation(OperationCode::IBitwiseNot, NO_PRECISE, op_b);
+
+        WriteLogicOperation(bb, instr.gpr0, instr.alu.lop.operation, op_a, op_b,
+                            instr.alu.lop.pred_result_mode, instr.alu.lop.pred48,
+                            instr.generates_cc);
+        break;
+    }
+    case OpCode::Id::LOP3_C:
+    case OpCode::Id::LOP3_R:
+    case OpCode::Id::LOP3_IMM: {
+        const Node op_c = GetRegister(instr.gpr39);
+        const Node lut = [&]() {
+            if (opcode->get().GetId() == OpCode::Id::LOP3_R) {
+                return Immediate(instr.alu.lop3.GetImmLut28());
+            } else {
+                return Immediate(instr.alu.lop3.GetImmLut48());
+            }
+        }();
+
+        WriteLop3Instruction(bb, instr.gpr0, op_a, op_b, op_c, lut, instr.generates_cc);
+        break;
+    }
+    case OpCode::Id::IMNMX_C:
+    case OpCode::Id::IMNMX_R:
+    case OpCode::Id::IMNMX_IMM: {
+        UNIMPLEMENTED_IF(instr.imnmx.exchange != Tegra::Shader::IMinMaxExchange::None);
+
+        const bool is_signed = instr.imnmx.is_signed;
+
+        const Node condition = GetPredicate(instr.imnmx.pred, instr.imnmx.negate_pred != 0);
+        const Node min = SignedOperation(OperationCode::IMin, is_signed, NO_PRECISE, op_a, op_b);
+        const Node max = SignedOperation(OperationCode::IMax, is_signed, NO_PRECISE, op_a, op_b);
+        const Node value = Operation(OperationCode::Select, NO_PRECISE, condition, min, max);
+
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::LEA_R2:
+    case OpCode::Id::LEA_R1:
+    case OpCode::Id::LEA_IMM:
+    case OpCode::Id::LEA_RZ:
+    case OpCode::Id::LEA_HI: {
+        const auto [op_a, op_b, op_c] = [&]() -> std::tuple<Node, Node, Node> {
+            switch (opcode->get().GetId()) {
+            case OpCode::Id::LEA_R2: {
+                return {GetRegister(instr.gpr20), GetRegister(instr.gpr39),
+                        Immediate(static_cast<u32>(instr.lea.r2.entry_a))};
+            }
+
+            case OpCode::Id::LEA_R1: {
+                const bool neg = instr.lea.r1.neg != 0;
+                return {GetOperandAbsNegInteger(GetRegister(instr.gpr8), false, neg, true),
+                        GetRegister(instr.gpr20),
+                        Immediate(static_cast<u32>(instr.lea.r1.entry_a))};
+            }
+
+            case OpCode::Id::LEA_IMM: {
+                const bool neg = instr.lea.imm.neg != 0;
+                return {Immediate(static_cast<u32>(instr.lea.imm.entry_a)),
+                        GetOperandAbsNegInteger(GetRegister(instr.gpr8), false, neg, true),
+                        Immediate(static_cast<u32>(instr.lea.imm.entry_b))};
+            }
+
+            case OpCode::Id::LEA_RZ: {
+                const bool neg = instr.lea.rz.neg != 0;
+                return {GetConstBuffer(instr.lea.rz.cb_index, instr.lea.rz.cb_offset),
+                        GetOperandAbsNegInteger(GetRegister(instr.gpr8), false, neg, true),
+                        Immediate(static_cast<u32>(instr.lea.rz.entry_a))};
+            }
+
+            case OpCode::Id::LEA_HI:
+            default:
+                UNIMPLEMENTED_MSG("Unhandled LEA subinstruction: {}", opcode->get().GetName());
+
+                return {Immediate(static_cast<u32>(instr.lea.imm.entry_a)), GetRegister(instr.gpr8),
+                        Immediate(static_cast<u32>(instr.lea.imm.entry_b))};
+            }
+        }();
+
+        UNIMPLEMENTED_IF_MSG(instr.lea.pred48 != static_cast<u64>(Pred::UnusedIndex),
+                             "Unhandled LEA Predicate");
+
+        const Node shifted_c =
+            Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, Immediate(1), op_c);
+        const Node mul_bc = Operation(OperationCode::IMul, NO_PRECISE, op_b, shifted_c);
+        const Node value = Operation(OperationCode::IAdd, NO_PRECISE, op_a, mul_bc);
+
+        SetRegister(bb, instr.gpr0, value);
+
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled ArithmeticInteger instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+void ShaderIR::WriteLop3Instruction(BasicBlock& bb, Register dest, Node op_a, Node op_b, Node op_c,
+                                    Node imm_lut, bool sets_cc) {
+    constexpr u32 lop_iterations = 32;
+    const Node one = Immediate(1);
+    const Node two = Immediate(2);
+
+    Node value{};
+    for (u32 i = 0; i < lop_iterations; ++i) {
+        const Node shift_amount = Immediate(i);
+
+        const Node a = Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, op_c, shift_amount);
+        const Node pack_0 = Operation(OperationCode::IBitwiseAnd, NO_PRECISE, a, one);
+
+        const Node b = Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, op_b, shift_amount);
+        const Node c = Operation(OperationCode::IBitwiseAnd, NO_PRECISE, b, one);
+        const Node pack_1 = Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, c, one);
+
+        const Node d = Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, op_a, shift_amount);
+        const Node e = Operation(OperationCode::IBitwiseAnd, NO_PRECISE, d, one);
+        const Node pack_2 = Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, e, two);
+
+        const Node pack_01 = Operation(OperationCode::IBitwiseAnd, NO_PRECISE, pack_0, pack_1);
+        const Node pack_012 = Operation(OperationCode::IBitwiseAnd, NO_PRECISE, pack_01, pack_2);
+
+        const Node shifted_bit =
+            Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, imm_lut, pack_012);
+        const Node bit = Operation(OperationCode::IBitwiseAnd, NO_PRECISE, shifted_bit, one);
+
+        const Node right =
+            Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, bit, shift_amount);
+
+        if (i > 0) {
+            value = Operation(OperationCode::IBitwiseOr, NO_PRECISE, value, right);
+        } else {
+            value = right;
+        }
+    }
+
+    SetInternalFlagsFromInteger(bb, value, sets_cc);
+    SetRegister(bb, dest, value);
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/arithmetic_integer_immediate.cpp

@@ -0,0 +1,96 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::LogicOperation;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+using Tegra::Shader::PredicateResultMode;
+using Tegra::Shader::Register;
+
+u32 ShaderIR::DecodeArithmeticIntegerImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    Node op_a = GetRegister(instr.gpr8);
+    Node op_b = Immediate(static_cast<s32>(instr.alu.imm20_32));
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::IADD32I: {
+        UNIMPLEMENTED_IF_MSG(instr.iadd32i.saturate, "IADD32I saturation is not implemented");
+
+        op_a = GetOperandAbsNegInteger(op_a, false, instr.iadd32i.negate_a, true);
+
+        const Node value = Operation(OperationCode::IAdd, PRECISE, op_a, op_b);
+
+        SetInternalFlagsFromInteger(bb, value, instr.op_32.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::LOP32I: {
+        if (instr.alu.lop32i.invert_a)
+            op_a = Operation(OperationCode::IBitwiseNot, NO_PRECISE, op_a);
+
+        if (instr.alu.lop32i.invert_b)
+            op_b = Operation(OperationCode::IBitwiseNot, NO_PRECISE, op_b);
+
+        WriteLogicOperation(bb, instr.gpr0, instr.alu.lop32i.operation, op_a, op_b,
+                            PredicateResultMode::None, Pred::UnusedIndex, instr.op_32.generates_cc);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled ArithmeticIntegerImmediate instruction: {}",
+                          opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+void ShaderIR::WriteLogicOperation(BasicBlock& bb, Register dest, LogicOperation logic_op,
+                                   Node op_a, Node op_b, PredicateResultMode predicate_mode,
+                                   Pred predicate, bool sets_cc) {
+    const Node result = [&]() {
+        switch (logic_op) {
+        case LogicOperation::And:
+            return Operation(OperationCode::IBitwiseAnd, PRECISE, op_a, op_b);
+        case LogicOperation::Or:
+            return Operation(OperationCode::IBitwiseOr, PRECISE, op_a, op_b);
+        case LogicOperation::Xor:
+            return Operation(OperationCode::IBitwiseXor, PRECISE, op_a, op_b);
+        case LogicOperation::PassB:
+            return op_b;
+        default:
+            UNIMPLEMENTED_MSG("Unimplemented logic operation={}", static_cast<u32>(logic_op));
+            return Immediate(0);
+        }
+    }();
+
+    SetInternalFlagsFromInteger(bb, result, sets_cc);
+    SetRegister(bb, dest, result);
+
+    // Write the predicate value depending on the predicate mode.
+    switch (predicate_mode) {
+    case PredicateResultMode::None:
+        // Do nothing.
+        return;
+    case PredicateResultMode::NotZero: {
+        // Set the predicate to true if the result is not zero.
+        const Node compare = Operation(OperationCode::LogicalINotEqual, result, Immediate(0));
+        SetPredicate(bb, static_cast<u64>(predicate), compare);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unimplemented predicate result mode: {}",
+                          static_cast<u32>(predicate_mode));
+    }
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/bfe.cpp

@@ -0,0 +1,49 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeBfe(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF(instr.bfe.negate_b);
+
+    Node op_a = GetRegister(instr.gpr8);
+    op_a = GetOperandAbsNegInteger(op_a, false, instr.bfe.negate_a, false);
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::BFE_IMM: {
+        UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                             "Condition codes generation in BFE is not implemented");
+
+        const Node inner_shift_imm = Immediate(static_cast<u32>(instr.bfe.GetLeftShiftValue()));
+        const Node outer_shift_imm =
+            Immediate(static_cast<u32>(instr.bfe.GetLeftShiftValue() + instr.bfe.shift_position));
+
+        const Node inner_shift =
+            Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, op_a, inner_shift_imm);
+        const Node outer_shift =
+            Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, inner_shift, outer_shift_imm);
+
+        SetInternalFlagsFromInteger(bb, outer_shift, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, outer_shift);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled BFE instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/bfi.cpp

@@ -0,0 +1,41 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeBfi(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const auto [base, packed_shift] = [&]() -> std::tuple<Node, Node> {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::BFI_IMM_R:
+            return {GetRegister(instr.gpr39), Immediate(instr.alu.GetSignedImm20_20())};
+        default:
+            UNREACHABLE();
+            return {Immediate(0), Immediate(0)};
+        }
+    }();
+    const Node insert = GetRegister(instr.gpr8);
+    const Node offset = BitfieldExtract(packed_shift, 0, 8);
+    const Node bits = BitfieldExtract(packed_shift, 8, 8);
+
+    const Node value =
+        Operation(OperationCode::UBitfieldInsert, PRECISE, base, insert, offset, bits);
+
+    SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/conversion.cpp

@@ -0,0 +1,149 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Register;
+
+u32 ShaderIR::DecodeConversion(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::I2I_R: {
+        UNIMPLEMENTED_IF(instr.conversion.selector);
+
+        const bool input_signed = instr.conversion.is_input_signed;
+        const bool output_signed = instr.conversion.is_output_signed;
+
+        Node value = GetRegister(instr.gpr20);
+        value = ConvertIntegerSize(value, instr.conversion.src_size, input_signed);
+
+        value = GetOperandAbsNegInteger(value, instr.conversion.abs_a, instr.conversion.negate_a,
+                                        input_signed);
+        if (input_signed != output_signed) {
+            value = SignedOperation(OperationCode::ICastUnsigned, output_signed, NO_PRECISE, value);
+        }
+
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::I2F_R:
+    case OpCode::Id::I2F_C: {
+        UNIMPLEMENTED_IF(instr.conversion.dest_size != Register::Size::Word);
+        UNIMPLEMENTED_IF(instr.conversion.selector);
+        UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                             "Condition codes generation in I2F is not implemented");
+
+        Node value = [&]() {
+            if (instr.is_b_gpr) {
+                return GetRegister(instr.gpr20);
+            } else {
+                return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+            }
+        }();
+        const bool input_signed = instr.conversion.is_input_signed;
+        value = ConvertIntegerSize(value, instr.conversion.src_size, input_signed);
+        value = GetOperandAbsNegInteger(value, instr.conversion.abs_a, false, input_signed);
+        value = SignedOperation(OperationCode::FCastInteger, input_signed, PRECISE, value);
+        value = GetOperandAbsNegFloat(value, false, instr.conversion.negate_a);
+
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::F2F_R:
+    case OpCode::Id::F2F_C: {
+        UNIMPLEMENTED_IF(instr.conversion.dest_size != Register::Size::Word);
+        UNIMPLEMENTED_IF(instr.conversion.src_size != Register::Size::Word);
+        UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                             "Condition codes generation in F2F is not implemented");
+
+        Node value = [&]() {
+            if (instr.is_b_gpr) {
+                return GetRegister(instr.gpr20);
+            } else {
+                return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+            }
+        }();
+
+        value = GetOperandAbsNegFloat(value, instr.conversion.abs_a, instr.conversion.negate_a);
+
+        value = [&]() {
+            switch (instr.conversion.f2f.rounding) {
+            case Tegra::Shader::F2fRoundingOp::None:
+                return value;
+            case Tegra::Shader::F2fRoundingOp::Round:
+                return Operation(OperationCode::FRoundEven, PRECISE, value);
+            case Tegra::Shader::F2fRoundingOp::Floor:
+                return Operation(OperationCode::FFloor, PRECISE, value);
+            case Tegra::Shader::F2fRoundingOp::Ceil:
+                return Operation(OperationCode::FCeil, PRECISE, value);
+            case Tegra::Shader::F2fRoundingOp::Trunc:
+                return Operation(OperationCode::FTrunc, PRECISE, value);
+            }
+            UNIMPLEMENTED_MSG("Unimplemented F2F rounding mode {}",
+                              static_cast<u32>(instr.conversion.f2f.rounding.Value()));
+            return Immediate(0);
+        }();
+        value = GetSaturatedFloat(value, instr.alu.saturate_d);
+
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::F2I_R:
+    case OpCode::Id::F2I_C: {
+        UNIMPLEMENTED_IF(instr.conversion.src_size != Register::Size::Word);
+        UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                             "Condition codes generation in F2I is not implemented");
+        Node value = [&]() {
+            if (instr.is_b_gpr) {
+                return GetRegister(instr.gpr20);
+            } else {
+                return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+            }
+        }();
+
+        value = GetOperandAbsNegFloat(value, instr.conversion.abs_a, instr.conversion.negate_a);
+
+        value = [&]() {
+            switch (instr.conversion.f2i.rounding) {
+            case Tegra::Shader::F2iRoundingOp::None:
+                return value;
+            case Tegra::Shader::F2iRoundingOp::Floor:
+                return Operation(OperationCode::FFloor, PRECISE, value);
+            case Tegra::Shader::F2iRoundingOp::Ceil:
+                return Operation(OperationCode::FCeil, PRECISE, value);
+            case Tegra::Shader::F2iRoundingOp::Trunc:
+                return Operation(OperationCode::FTrunc, PRECISE, value);
+            default:
+                UNIMPLEMENTED_MSG("Unimplemented F2I rounding mode {}",
+                                  static_cast<u32>(instr.conversion.f2i.rounding.Value()));
+                return Immediate(0);
+            }
+        }();
+        const bool is_signed = instr.conversion.is_output_signed;
+        value = SignedOperation(OperationCode::ICastFloat, is_signed, PRECISE, value);
+        value = ConvertIntegerSize(value, instr.conversion.dest_size, is_signed);
+
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled conversion instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/ffma.cpp

@@ -0,0 +1,59 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeFfma(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF_MSG(instr.ffma.cc != 0, "FFMA cc not implemented");
+    UNIMPLEMENTED_IF_MSG(instr.ffma.tab5980_0 != 1, "FFMA tab5980_0({}) not implemented",
+                         instr.ffma.tab5980_0.Value()); // Seems to be 1 by default based on SMO
+    UNIMPLEMENTED_IF_MSG(instr.ffma.tab5980_1 != 0, "FFMA tab5980_1({}) not implemented",
+                         instr.ffma.tab5980_1.Value());
+
+    const Node op_a = GetRegister(instr.gpr8);
+
+    auto [op_b, op_c] = [&]() -> std::tuple<Node, Node> {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::FFMA_CR: {
+            return {GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset),
+                    GetRegister(instr.gpr39)};
+        }
+        case OpCode::Id::FFMA_RR:
+            return {GetRegister(instr.gpr20), GetRegister(instr.gpr39)};
+        case OpCode::Id::FFMA_RC: {
+            return {GetRegister(instr.gpr39),
+                    GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset)};
+        }
+        case OpCode::Id::FFMA_IMM:
+            return {GetImmediate19(instr), GetRegister(instr.gpr39)};
+        default:
+            UNIMPLEMENTED_MSG("Unhandled FFMA instruction: {}", opcode->get().GetName());
+            return {Immediate(0), Immediate(0)};
+        }
+    }();
+
+    op_b = GetOperandAbsNegFloat(op_b, false, instr.ffma.negate_b);
+    op_c = GetOperandAbsNegFloat(op_c, false, instr.ffma.negate_c);
+
+    Node value = Operation(OperationCode::FFma, PRECISE, op_a, op_b, op_c);
+    value = GetSaturatedFloat(value, instr.alu.saturate_d);
+
+    SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/float_set.cpp

@@ -0,0 +1,58 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeFloatSet(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const Node op_a = GetOperandAbsNegFloat(GetRegister(instr.gpr8), instr.fset.abs_a != 0,
+                                            instr.fset.neg_a != 0);
+
+    Node op_b = [&]() {
+        if (instr.is_b_imm) {
+            return GetImmediate19(instr);
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+
+    op_b = GetOperandAbsNegFloat(op_b, instr.fset.abs_b != 0, instr.fset.neg_b != 0);
+
+    // The fset instruction sets a register to 1.0 or -1 (depending on the bf bit) if the
+    // condition is true, and to 0 otherwise.
+    const Node second_pred = GetPredicate(instr.fset.pred39, instr.fset.neg_pred != 0);
+
+    const OperationCode combiner = GetPredicateCombiner(instr.fset.op);
+    const Node first_pred = GetPredicateComparisonFloat(instr.fset.cond, op_a, op_b);
+
+    const Node predicate = Operation(combiner, first_pred, second_pred);
+
+    const Node true_value = instr.fset.bf ? Immediate(1.0f) : Immediate(-1);
+    const Node false_value = instr.fset.bf ? Immediate(0.0f) : Immediate(0);
+    const Node value =
+        Operation(OperationCode::Select, PRECISE, predicate, true_value, false_value);
+
+    if (instr.fset.bf) {
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+    } else {
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+    }
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/float_set_predicate.cpp

@@ -0,0 +1,56 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+
+u32 ShaderIR::DecodeFloatSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const Node op_a = GetOperandAbsNegFloat(GetRegister(instr.gpr8), instr.fsetp.abs_a != 0,
+                                            instr.fsetp.neg_a != 0);
+    Node op_b = [&]() {
+        if (instr.is_b_imm) {
+            return GetImmediate19(instr);
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+    op_b = GetOperandAbsNegFloat(op_b, instr.fsetp.abs_b, false);
+
+    // We can't use the constant predicate as destination.
+    ASSERT(instr.fsetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
+
+    const Node predicate = GetPredicateComparisonFloat(instr.fsetp.cond, op_a, op_b);
+    const Node second_pred = GetPredicate(instr.fsetp.pred39, instr.fsetp.neg_pred != 0);
+
+    const OperationCode combiner = GetPredicateCombiner(instr.fsetp.op);
+    const Node value = Operation(combiner, predicate, second_pred);
+
+    // Set the primary predicate to the result of Predicate OP SecondPredicate
+    SetPredicate(bb, instr.fsetp.pred3, value);
+
+    if (instr.fsetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+        // Set the secondary predicate to the result of !Predicate OP SecondPredicate,
+        // if enabled
+        const Node negated_pred = Operation(OperationCode::LogicalNegate, predicate);
+        const Node second_value = Operation(combiner, negated_pred, second_pred);
+        SetPredicate(bb, instr.fsetp.pred0, second_value);
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/half_set.cpp

@@ -0,0 +1,67 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <array>
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeHalfSet(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF(instr.hset2.ftz != 0);
+
+    // instr.hset2.type_a
+    // instr.hset2.type_b
+    Node op_a = GetRegister(instr.gpr8);
+    Node op_b = [&]() {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::HSET2_R:
+            return GetRegister(instr.gpr20);
+        default:
+            UNREACHABLE();
+            return Immediate(0);
+        }
+    }();
+
+    op_a = GetOperandAbsNegHalf(op_a, instr.hset2.abs_a, instr.hset2.negate_a);
+    op_b = GetOperandAbsNegHalf(op_b, instr.hset2.abs_b, instr.hset2.negate_b);
+
+    const Node second_pred = GetPredicate(instr.hset2.pred39, instr.hset2.neg_pred);
+
+    MetaHalfArithmetic meta{false, {instr.hset2.type_a, instr.hset2.type_b}};
+    const Node comparison_pair = GetPredicateComparisonHalf(instr.hset2.cond, meta, op_a, op_b);
+
+    const OperationCode combiner = GetPredicateCombiner(instr.hset2.op);
+
+    // HSET2 operates on each half float in the pack.
+    std::array<Node, 2> values;
+    for (u32 i = 0; i < 2; ++i) {
+        const u32 raw_value = instr.hset2.bf ? 0x3c00 : 0xffff;
+        const Node true_value = Immediate(raw_value << (i * 16));
+        const Node false_value = Immediate(0);
+
+        const Node comparison =
+            Operation(OperationCode::LogicalPick2, comparison_pair, Immediate(i));
+        const Node predicate = Operation(combiner, comparison, second_pred);
+
+        values[i] =
+            Operation(OperationCode::Select, NO_PRECISE, predicate, true_value, false_value);
+    }
+
+    const Node value = Operation(OperationCode::UBitwiseOr, NO_PRECISE, values[0], values[1]);
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/half_set_predicate.cpp

@@ -0,0 +1,62 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+
+u32 ShaderIR::DecodeHalfSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF(instr.hsetp2.ftz != 0);
+
+    Node op_a = GetRegister(instr.gpr8);
+    op_a = GetOperandAbsNegHalf(op_a, instr.hsetp2.abs_a, instr.hsetp2.negate_a);
+
+    const Node op_b = [&]() {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::HSETP2_R:
+            return GetOperandAbsNegHalf(GetRegister(instr.gpr20), instr.hsetp2.abs_a,
+                                        instr.hsetp2.negate_b);
+        default:
+            UNREACHABLE();
+            return Immediate(0);
+        }
+    }();
+
+    // We can't use the constant predicate as destination.
+    ASSERT(instr.hsetp2.pred3 != static_cast<u64>(Pred::UnusedIndex));
+
+    const Node second_pred = GetPredicate(instr.hsetp2.pred39, instr.hsetp2.neg_pred != 0);
+
+    const OperationCode combiner = GetPredicateCombiner(instr.hsetp2.op);
+    const OperationCode pair_combiner =
+        instr.hsetp2.h_and ? OperationCode::LogicalAll2 : OperationCode::LogicalAny2;
+
+    MetaHalfArithmetic meta = {false, {instr.hsetp2.type_a, instr.hsetp2.type_b}};
+    const Node comparison = GetPredicateComparisonHalf(instr.hsetp2.cond, meta, op_a, op_b);
+    const Node first_pred = Operation(pair_combiner, comparison);
+
+    // Set the primary predicate to the result of Predicate OP SecondPredicate
+    const Node value = Operation(combiner, first_pred, second_pred);
+    SetPredicate(bb, instr.hsetp2.pred3, value);
+
+    if (instr.hsetp2.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+        // Set the secondary predicate to the result of !Predicate OP SecondPredicate, if enabled
+        const Node negated_pred = Operation(OperationCode::LogicalNegate, first_pred);
+        SetPredicate(bb, instr.hsetp2.pred0, Operation(combiner, negated_pred, second_pred));
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/hfma2.cpp

@@ -0,0 +1,76 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <tuple>
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::HalfPrecision;
+using Tegra::Shader::HalfType;
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeHfma2(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    if (opcode->get().GetId() == OpCode::Id::HFMA2_RR) {
+        UNIMPLEMENTED_IF(instr.hfma2.rr.precision != HalfPrecision::None);
+    } else {
+        UNIMPLEMENTED_IF(instr.hfma2.precision != HalfPrecision::None);
+    }
+
+    constexpr auto identity = HalfType::H0_H1;
+
+    const HalfType type_a = instr.hfma2.type_a;
+    const Node op_a = GetRegister(instr.gpr8);
+
+    bool neg_b{}, neg_c{};
+    auto [saturate, type_b, op_b, type_c,
+          op_c] = [&]() -> std::tuple<bool, HalfType, Node, HalfType, Node> {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::HFMA2_CR:
+            neg_b = instr.hfma2.negate_b;
+            neg_c = instr.hfma2.negate_c;
+            return {instr.hfma2.saturate, instr.hfma2.type_b,
+                    GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset), instr.hfma2.type_reg39,
+                    GetRegister(instr.gpr39)};
+        case OpCode::Id::HFMA2_RC:
+            neg_b = instr.hfma2.negate_b;
+            neg_c = instr.hfma2.negate_c;
+            return {instr.hfma2.saturate, instr.hfma2.type_reg39, GetRegister(instr.gpr39),
+                    instr.hfma2.type_b, GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset)};
+        case OpCode::Id::HFMA2_RR:
+            neg_b = instr.hfma2.rr.negate_b;
+            neg_c = instr.hfma2.rr.negate_c;
+            return {instr.hfma2.rr.saturate, instr.hfma2.type_b, GetRegister(instr.gpr20),
+                    instr.hfma2.rr.type_c, GetRegister(instr.gpr39)};
+        case OpCode::Id::HFMA2_IMM_R:
+            neg_c = instr.hfma2.negate_c;
+            return {instr.hfma2.saturate, identity, UnpackHalfImmediate(instr, true),
+                    instr.hfma2.type_reg39, GetRegister(instr.gpr39)};
+        default:
+            return {false, identity, Immediate(0), identity, Immediate(0)};
+        }
+    }();
+    UNIMPLEMENTED_IF_MSG(saturate, "HFMA2 saturation is not implemented");
+
+    op_b = GetOperandAbsNegHalf(op_b, false, neg_b);
+    op_c = GetOperandAbsNegHalf(op_c, false, neg_c);
+
+    MetaHalfArithmetic meta{true, {type_a, type_b, type_c}};
+    Node value = Operation(OperationCode::HFma, meta, op_a, op_b, op_c);
+    value = HalfMerge(GetRegister(instr.gpr0), value, instr.hfma2.merge);
+
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/integer_set.cpp

@@ -0,0 +1,50 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeIntegerSet(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const Node op_a = GetRegister(instr.gpr8);
+    const Node op_b = [&]() {
+        if (instr.is_b_imm) {
+            return Immediate(instr.alu.GetSignedImm20_20());
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+
+    // The iset instruction sets a register to 1.0 or -1 (depending on the bf bit) if the condition
+    // is true, and to 0 otherwise.
+    const Node second_pred = GetPredicate(instr.iset.pred39, instr.iset.neg_pred != 0);
+    const Node first_pred =
+        GetPredicateComparisonInteger(instr.iset.cond, instr.iset.is_signed, op_a, op_b);
+
+    const OperationCode combiner = GetPredicateCombiner(instr.iset.op);
+
+    const Node predicate = Operation(combiner, first_pred, second_pred);
+
+    const Node true_value = instr.iset.bf ? Immediate(1.0f) : Immediate(-1);
+    const Node false_value = instr.iset.bf ? Immediate(0.0f) : Immediate(0);
+    const Node value =
+        Operation(OperationCode::Select, PRECISE, predicate, true_value, false_value);
+
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/integer_set_predicate.cpp

@@ -0,0 +1,53 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+
+u32 ShaderIR::DecodeIntegerSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const Node op_a = GetRegister(instr.gpr8);
+
+    const Node op_b = [&]() {
+        if (instr.is_b_imm) {
+            return Immediate(instr.alu.GetSignedImm20_20());
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+
+    // We can't use the constant predicate as destination.
+    ASSERT(instr.isetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
+
+    const Node second_pred = GetPredicate(instr.isetp.pred39, instr.isetp.neg_pred != 0);
+    const Node predicate =
+        GetPredicateComparisonInteger(instr.isetp.cond, instr.isetp.is_signed, op_a, op_b);
+
+    // Set the primary predicate to the result of Predicate OP SecondPredicate
+    const OperationCode combiner = GetPredicateCombiner(instr.isetp.op);
+    const Node value = Operation(combiner, predicate, second_pred);
+    SetPredicate(bb, instr.isetp.pred3, value);
+
+    if (instr.isetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+        // Set the secondary predicate to the result of !Predicate OP SecondPredicate, if enabled
+        const Node negated_pred = Operation(OperationCode::LogicalNegate, predicate);
+        SetPredicate(bb, instr.isetp.pred0, Operation(combiner, negated_pred, second_pred));
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/memory.cpp

@@ -0,0 +1,688 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <vector>
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Attribute;
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Register;
+using Tegra::Shader::TextureMiscMode;
+using Tegra::Shader::TextureProcessMode;
+using Tegra::Shader::TextureType;
+
+static std::size_t GetCoordCount(TextureType texture_type) {
+    switch (texture_type) {
+    case TextureType::Texture1D:
+        return 1;
+    case TextureType::Texture2D:
+        return 2;
+    case TextureType::Texture3D:
+    case TextureType::TextureCube:
+        return 3;
+    default:
+        UNIMPLEMENTED_MSG("Unhandled texture type: {}", static_cast<u32>(texture_type));
+        return 0;
+    }
+}
+
+u32 ShaderIR::DecodeMemory(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::LD_A: {
+        // Note: Shouldn't this be interp mode flat? As in no interpolation made.
+        UNIMPLEMENTED_IF_MSG(instr.gpr8.Value() != Register::ZeroIndex,
+                             "Indirect attribute loads are not supported");
+        UNIMPLEMENTED_IF_MSG((instr.attribute.fmt20.immediate.Value() % sizeof(u32)) != 0,
+                             "Unaligned attribute loads are not supported");
+
+        Tegra::Shader::IpaMode input_mode{Tegra::Shader::IpaInterpMode::Perspective,
+                                          Tegra::Shader::IpaSampleMode::Default};
+
+        u64 next_element = instr.attribute.fmt20.element;
+        auto next_index = static_cast<u64>(instr.attribute.fmt20.index.Value());
+
+        const auto LoadNextElement = [&](u32 reg_offset) {
+            const Node buffer = GetRegister(instr.gpr39);
+            const Node attribute = GetInputAttribute(static_cast<Attribute::Index>(next_index),
+                                                     next_element, input_mode, buffer);
+
+            SetRegister(bb, instr.gpr0.Value() + reg_offset, attribute);
+
+            // Load the next attribute element into the following register. If the element
+            // to load goes beyond the vec4 size, load the first element of the next
+            // attribute.
+            next_element = (next_element + 1) % 4;
+            next_index = next_index + (next_element == 0 ? 1 : 0);
+        };
+
+        const u32 num_words = static_cast<u32>(instr.attribute.fmt20.size.Value()) + 1;
+        for (u32 reg_offset = 0; reg_offset < num_words; ++reg_offset) {
+            LoadNextElement(reg_offset);
+        }
+        break;
+    }
+    case OpCode::Id::LD_C: {
+        UNIMPLEMENTED_IF(instr.ld_c.unknown != 0);
+
+        Node index = GetRegister(instr.gpr8);
+
+        const Node op_a =
+            GetConstBufferIndirect(instr.cbuf36.index, instr.cbuf36.offset + 0, index);
+
+        switch (instr.ld_c.type.Value()) {
+        case Tegra::Shader::UniformType::Single:
+            SetRegister(bb, instr.gpr0, op_a);
+            break;
+
+        case Tegra::Shader::UniformType::Double: {
+            const Node op_b =
+                GetConstBufferIndirect(instr.cbuf36.index, instr.cbuf36.offset + 4, index);
+
+            SetTemporal(bb, 0, op_a);
+            SetTemporal(bb, 1, op_b);
+            SetRegister(bb, instr.gpr0, GetTemporal(0));
+            SetRegister(bb, instr.gpr0.Value() + 1, GetTemporal(1));
+            break;
+        }
+        default:
+            UNIMPLEMENTED_MSG("Unhandled type: {}", static_cast<unsigned>(instr.ld_c.type.Value()));
+        }
+        break;
+    }
+    case OpCode::Id::LD_L: {
+        UNIMPLEMENTED_IF_MSG(instr.ld_l.unknown == 1, "LD_L Unhandled mode: {}",
+                             static_cast<unsigned>(instr.ld_l.unknown.Value()));
+
+        const Node index = Operation(OperationCode::IAdd, GetRegister(instr.gpr8),
+                                     Immediate(static_cast<s32>(instr.smem_imm)));
+        const Node lmem = GetLocalMemory(index);
+
+        switch (instr.ldst_sl.type.Value()) {
+        case Tegra::Shader::StoreType::Bytes32:
+            SetRegister(bb, instr.gpr0, lmem);
+            break;
+        default:
+            UNIMPLEMENTED_MSG("LD_L Unhandled type: {}",
+                              static_cast<unsigned>(instr.ldst_sl.type.Value()));
+        }
+        break;
+    }
+    case OpCode::Id::ST_A: {
+        UNIMPLEMENTED_IF_MSG(instr.gpr8.Value() != Register::ZeroIndex,
+                             "Indirect attribute loads are not supported");
+        UNIMPLEMENTED_IF_MSG((instr.attribute.fmt20.immediate.Value() % sizeof(u32)) != 0,
+                             "Unaligned attribute loads are not supported");
+
+        u64 next_element = instr.attribute.fmt20.element;
+        auto next_index = static_cast<u64>(instr.attribute.fmt20.index.Value());
+
+        const auto StoreNextElement = [&](u32 reg_offset) {
+            const auto dest = GetOutputAttribute(static_cast<Attribute::Index>(next_index),
+                                                 next_element, GetRegister(instr.gpr39));
+            const auto src = GetRegister(instr.gpr0.Value() + reg_offset);
+
+            bb.push_back(Operation(OperationCode::Assign, dest, src));
+
+            // Load the next attribute element into the following register. If the element
+            // to load goes beyond the vec4 size, load the first element of the next
+            // attribute.
+            next_element = (next_element + 1) % 4;
+            next_index = next_index + (next_element == 0 ? 1 : 0);
+        };
+
+        const u32 num_words = static_cast<u32>(instr.attribute.fmt20.size.Value()) + 1;
+        for (u32 reg_offset = 0; reg_offset < num_words; ++reg_offset) {
+            StoreNextElement(reg_offset);
+        }
+
+        break;
+    }
+    case OpCode::Id::ST_L: {
+        UNIMPLEMENTED_IF_MSG(instr.st_l.unknown == 0, "ST_L Unhandled mode: {}",
+                             static_cast<u32>(instr.st_l.unknown.Value()));
+
+        const Node index = Operation(OperationCode::IAdd, NO_PRECISE, GetRegister(instr.gpr8),
+                                     Immediate(static_cast<s32>(instr.smem_imm)));
+
+        switch (instr.ldst_sl.type.Value()) {
+        case Tegra::Shader::StoreType::Bytes32:
+            SetLocalMemory(bb, index, GetRegister(instr.gpr0));
+            break;
+        default:
+            UNIMPLEMENTED_MSG("ST_L Unhandled type: {}",
+                              static_cast<u32>(instr.ldst_sl.type.Value()));
+        }
+        break;
+    }
+    case OpCode::Id::TEX: {
+        UNIMPLEMENTED_IF_MSG(instr.tex.UsesMiscMode(TextureMiscMode::AOFFI),
+                             "AOFFI is not implemented");
+
+        if (instr.tex.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TEX.NODEP implementation is incomplete");
+        }
+
+        const TextureType texture_type{instr.tex.texture_type};
+        const bool is_array = instr.tex.array != 0;
+        const bool depth_compare = instr.tex.UsesMiscMode(TextureMiscMode::DC);
+        const auto process_mode = instr.tex.GetTextureProcessMode();
+        WriteTexInstructionFloat(
+            bb, instr, GetTexCode(instr, texture_type, process_mode, depth_compare, is_array));
+        break;
+    }
+    case OpCode::Id::TEXS: {
+        const TextureType texture_type{instr.texs.GetTextureType()};
+        const bool is_array{instr.texs.IsArrayTexture()};
+        const bool depth_compare = instr.texs.UsesMiscMode(TextureMiscMode::DC);
+        const auto process_mode = instr.texs.GetTextureProcessMode();
+
+        if (instr.texs.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TEXS.NODEP implementation is incomplete");
+        }
+
+        const Node4 components =
+            GetTexsCode(instr, texture_type, process_mode, depth_compare, is_array);
+
+        if (instr.texs.fp32_flag) {
+            WriteTexsInstructionFloat(bb, instr, components);
+        } else {
+            WriteTexsInstructionHalfFloat(bb, instr, components);
+        }
+        break;
+    }
+    case OpCode::Id::TLD4: {
+        ASSERT(instr.tld4.array == 0);
+        UNIMPLEMENTED_IF_MSG(instr.tld4.UsesMiscMode(TextureMiscMode::AOFFI),
+                             "AOFFI is not implemented");
+        UNIMPLEMENTED_IF_MSG(instr.tld4.UsesMiscMode(TextureMiscMode::NDV),
+                             "NDV is not implemented");
+        UNIMPLEMENTED_IF_MSG(instr.tld4.UsesMiscMode(TextureMiscMode::PTP),
+                             "PTP is not implemented");
+
+        if (instr.tld4.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TLD4.NODEP implementation is incomplete");
+        }
+
+        const auto texture_type = instr.tld4.texture_type.Value();
+        const bool depth_compare = instr.tld4.UsesMiscMode(TextureMiscMode::DC);
+        const bool is_array = instr.tld4.array != 0;
+        WriteTexInstructionFloat(bb, instr,
+                                 GetTld4Code(instr, texture_type, depth_compare, is_array));
+        break;
+    }
+    case OpCode::Id::TLD4S: {
+        UNIMPLEMENTED_IF_MSG(instr.tld4s.UsesMiscMode(TextureMiscMode::AOFFI),
+                             "AOFFI is not implemented");
+
+        if (instr.tld4s.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TLD4S.NODEP implementation is incomplete");
+        }
+
+        const bool depth_compare = instr.tld4s.UsesMiscMode(TextureMiscMode::DC);
+        const Node op_a = GetRegister(instr.gpr8);
+        const Node op_b = GetRegister(instr.gpr20);
+
+        std::vector<Node> coords;
+
+        // TODO(Subv): Figure out how the sampler type is encoded in the TLD4S instruction.
+        if (depth_compare) {
+            // Note: TLD4S coordinate encoding works just like TEXS's
+            const Node op_y = GetRegister(instr.gpr8.Value() + 1);
+            coords.push_back(op_a);
+            coords.push_back(op_y);
+            coords.push_back(op_b);
+        } else {
+            coords.push_back(op_a);
+            coords.push_back(op_b);
+        }
+        const auto num_coords = static_cast<u32>(coords.size());
+        coords.push_back(Immediate(static_cast<u32>(instr.tld4s.component)));
+
+        const auto& sampler =
+            GetSampler(instr.sampler, TextureType::Texture2D, false, depth_compare);
+
+        Node4 values;
+        for (u32 element = 0; element < values.size(); ++element) {
+            auto params = coords;
+            MetaTexture meta{sampler, element, num_coords};
+            values[element] =
+                Operation(OperationCode::F4TextureGather, std::move(meta), std::move(params));
+        }
+
+        WriteTexsInstructionFloat(bb, instr, values);
+        break;
+    }
+    case OpCode::Id::TXQ: {
+        if (instr.txq.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TXQ.NODEP implementation is incomplete");
+        }
+
+        // TODO: The new commits on the texture refactor, change the way samplers work.
+        // Sadly, not all texture instructions specify the type of texture their sampler
+        // uses. This must be fixed at a later instance.
+        const auto& sampler =
+            GetSampler(instr.sampler, Tegra::Shader::TextureType::Texture2D, false, false);
+
+        switch (instr.txq.query_type) {
+        case Tegra::Shader::TextureQueryType::Dimension: {
+            for (u32 element = 0; element < 4; ++element) {
+                MetaTexture meta{sampler, element};
+                const Node value = Operation(OperationCode::F4TextureQueryDimensions,
+                                             std::move(meta), GetRegister(instr.gpr8));
+                SetTemporal(bb, element, value);
+            }
+            for (u32 i = 0; i < 4; ++i) {
+                SetRegister(bb, instr.gpr0.Value() + i, GetTemporal(i));
+            }
+            break;
+        }
+        default:
+            UNIMPLEMENTED_MSG("Unhandled texture query type: {}",
+                              static_cast<u32>(instr.txq.query_type.Value()));
+        }
+        break;
+    }
+    case OpCode::Id::TMML: {
+        UNIMPLEMENTED_IF_MSG(instr.tmml.UsesMiscMode(Tegra::Shader::TextureMiscMode::NDV),
+                             "NDV is not implemented");
+
+        if (instr.tmml.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TMML.NODEP implementation is incomplete");
+        }
+
+        auto texture_type = instr.tmml.texture_type.Value();
+        const bool is_array = instr.tmml.array != 0;
+        const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, false);
+
+        std::vector<Node> coords;
+
+        // TODO: Add coordinates for different samplers once other texture types are implemented.
+        switch (texture_type) {
+        case TextureType::Texture1D:
+            coords.push_back(GetRegister(instr.gpr8));
+            break;
+        case TextureType::Texture2D:
+            coords.push_back(GetRegister(instr.gpr8.Value() + 0));
+            coords.push_back(GetRegister(instr.gpr8.Value() + 1));
+            break;
+        default:
+            UNIMPLEMENTED_MSG("Unhandled texture type {}", static_cast<u32>(texture_type));
+
+            // Fallback to interpreting as a 2D texture for now
+            coords.push_back(GetRegister(instr.gpr8.Value() + 0));
+            coords.push_back(GetRegister(instr.gpr8.Value() + 1));
+            texture_type = TextureType::Texture2D;
+        }
+
+        for (u32 element = 0; element < 2; ++element) {
+            auto params = coords;
+            MetaTexture meta_texture{sampler, element, static_cast<u32>(coords.size())};
+            const Node value =
+                Operation(OperationCode::F4TextureQueryLod, meta_texture, std::move(params));
+            SetTemporal(bb, element, value);
+        }
+        for (u32 element = 0; element < 2; ++element) {
+            SetRegister(bb, instr.gpr0.Value() + element, GetTemporal(element));
+        }
+
+        break;
+    }
+    case OpCode::Id::TLDS: {
+        const Tegra::Shader::TextureType texture_type{instr.tlds.GetTextureType()};
+        const bool is_array{instr.tlds.IsArrayTexture()};
+
+        UNIMPLEMENTED_IF_MSG(instr.tlds.UsesMiscMode(TextureMiscMode::AOFFI),
+                             "AOFFI is not implemented");
+        UNIMPLEMENTED_IF_MSG(instr.tlds.UsesMiscMode(TextureMiscMode::MZ), "MZ is not implemented");
+
+        if (instr.tlds.UsesMiscMode(TextureMiscMode::NODEP)) {
+            LOG_WARNING(HW_GPU, "TMML.NODEP implementation is incomplete");
+        }
+
+        WriteTexsInstructionFloat(bb, instr, GetTldsCode(instr, texture_type, is_array));
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled memory instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+const Sampler& ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler, TextureType type,
+                                    bool is_array, bool is_shadow) {
+    const auto offset = static_cast<std::size_t>(sampler.index.Value());
+
+    // If this sampler has already been used, return the existing mapping.
+    const auto itr =
+        std::find_if(used_samplers.begin(), used_samplers.end(),
+                     [&](const Sampler& entry) { return entry.GetOffset() == offset; });
+    if (itr != used_samplers.end()) {
+        ASSERT(itr->GetType() == type && itr->IsArray() == is_array &&
+               itr->IsShadow() == is_shadow);
+        return *itr;
+    }
+
+    // Otherwise create a new mapping for this sampler
+    const std::size_t next_index = used_samplers.size();
+    const Sampler entry{offset, next_index, type, is_array, is_shadow};
+    return *used_samplers.emplace(entry).first;
+}
+
+void ShaderIR::WriteTexInstructionFloat(BasicBlock& bb, Instruction instr,
+                                        const Node4& components) {
+    u32 dest_elem = 0;
+    for (u32 elem = 0; elem < 4; ++elem) {
+        if (!instr.tex.IsComponentEnabled(elem)) {
+            // Skip disabled components
+            continue;
+        }
+        SetTemporal(bb, dest_elem++, components[elem]);
+    }
+    // After writing values in temporals, move them to the real registers
+    for (u32 i = 0; i < dest_elem; ++i) {
+        SetRegister(bb, instr.gpr0.Value() + i, GetTemporal(i));
+    }
+}
+
+void ShaderIR::WriteTexsInstructionFloat(BasicBlock& bb, Instruction instr,
+                                         const Node4& components) {
+    // TEXS has two destination registers and a swizzle. The first two elements in the swizzle
+    // go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1
+
+    u32 dest_elem = 0;
+    for (u32 component = 0; component < 4; ++component) {
+        if (!instr.texs.IsComponentEnabled(component))
+            continue;
+        SetTemporal(bb, dest_elem++, components[component]);
+    }
+
+    for (u32 i = 0; i < dest_elem; ++i) {
+        if (i < 2) {
+            // Write the first two swizzle components to gpr0 and gpr0+1
+            SetRegister(bb, instr.gpr0.Value() + i % 2, GetTemporal(i));
+        } else {
+            ASSERT(instr.texs.HasTwoDestinations());
+            // Write the rest of the swizzle components to gpr28 and gpr28+1
+            SetRegister(bb, instr.gpr28.Value() + i % 2, GetTemporal(i));
+        }
+    }
+}
+
+void ShaderIR::WriteTexsInstructionHalfFloat(BasicBlock& bb, Instruction instr,
+                                             const Node4& components) {
+    // TEXS.F16 destionation registers are packed in two registers in pairs (just like any half
+    // float instruction).
+
+    Node4 values;
+    u32 dest_elem = 0;
+    for (u32 component = 0; component < 4; ++component) {
+        if (!instr.texs.IsComponentEnabled(component))
+            continue;
+        values[dest_elem++] = components[component];
+    }
+    if (dest_elem == 0)
+        return;
+
+    std::generate(values.begin() + dest_elem, values.end(), [&]() { return Immediate(0); });
+
+    const Node first_value = Operation(OperationCode::HPack2, values[0], values[1]);
+    if (dest_elem <= 2) {
+        SetRegister(bb, instr.gpr0, first_value);
+        return;
+    }
+
+    SetTemporal(bb, 0, first_value);
+    SetTemporal(bb, 1, Operation(OperationCode::HPack2, values[2], values[3]));
+
+    SetRegister(bb, instr.gpr0, GetTemporal(0));
+    SetRegister(bb, instr.gpr28, GetTemporal(1));
+}
+
+Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
+                               TextureProcessMode process_mode, bool depth_compare, bool is_array,
+                               std::size_t array_offset, std::size_t bias_offset,
+                               std::vector<Node>&& coords) {
+    UNIMPLEMENTED_IF_MSG(
+        (texture_type == TextureType::Texture3D && (is_array || depth_compare)) ||
+            (texture_type == TextureType::TextureCube && is_array && depth_compare),
+        "This method is not supported.");
+
+    const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, depth_compare);
+
+    const bool lod_needed = process_mode == TextureProcessMode::LZ ||
+                            process_mode == TextureProcessMode::LL ||
+                            process_mode == TextureProcessMode::LLA;
+
+    // LOD selection (either via bias or explicit textureLod) not supported in GL for
+    // sampler2DArrayShadow and samplerCubeArrayShadow.
+    const bool gl_lod_supported =
+        !((texture_type == Tegra::Shader::TextureType::Texture2D && is_array && depth_compare) ||
+          (texture_type == Tegra::Shader::TextureType::TextureCube && is_array && depth_compare));
+
+    const OperationCode read_method =
+        lod_needed && gl_lod_supported ? OperationCode::F4TextureLod : OperationCode::F4Texture;
+
+    UNIMPLEMENTED_IF(process_mode != TextureProcessMode::None && !gl_lod_supported);
+
+    std::optional<u32> array_offset_value;
+    if (is_array)
+        array_offset_value = static_cast<u32>(array_offset);
+
+    const auto coords_count = static_cast<u32>(coords.size());
+
+    if (process_mode != TextureProcessMode::None && gl_lod_supported) {
+        if (process_mode == TextureProcessMode::LZ) {
+            coords.push_back(Immediate(0.0f));
+        } else {
+            // If present, lod or bias are always stored in the register indexed by the gpr20
+            // field with an offset depending on the usage of the other registers
+            coords.push_back(GetRegister(instr.gpr20.Value() + bias_offset));
+        }
+    }
+
+    Node4 values;
+    for (u32 element = 0; element < values.size(); ++element) {
+        auto params = coords;
+        MetaTexture meta{sampler, element, coords_count, array_offset_value};
+        values[element] = Operation(read_method, std::move(meta), std::move(params));
+    }
+
+    return values;
+}
+
+Node4 ShaderIR::GetTexCode(Instruction instr, TextureType texture_type,
+                           TextureProcessMode process_mode, bool depth_compare, bool is_array) {
+    const bool lod_bias_enabled =
+        (process_mode != TextureProcessMode::None && process_mode != TextureProcessMode::LZ);
+
+    const auto [coord_count, total_coord_count] = ValidateAndGetCoordinateElement(
+        texture_type, depth_compare, is_array, lod_bias_enabled, 4, 5);
+    // If enabled arrays index is always stored in the gpr8 field
+    const u64 array_register = instr.gpr8.Value();
+    // First coordinate index is the gpr8 or gpr8 + 1 when arrays are used
+    const u64 coord_register = array_register + (is_array ? 1 : 0);
+
+    std::vector<Node> coords;
+    for (std::size_t i = 0; i < coord_count; ++i) {
+        coords.push_back(GetRegister(coord_register + i));
+    }
+    // 1D.DC in opengl the 2nd component is ignored.
+    if (depth_compare && !is_array && texture_type == TextureType::Texture1D) {
+        coords.push_back(Immediate(0.0f));
+    }
+    std::size_t array_offset{};
+    if (is_array) {
+        array_offset = coords.size();
+        coords.push_back(GetRegister(array_register));
+    }
+    if (depth_compare) {
+        // Depth is always stored in the register signaled by gpr20
+        // or in the next register if lod or bias are used
+        const u64 depth_register = instr.gpr20.Value() + (lod_bias_enabled ? 1 : 0);
+        coords.push_back(GetRegister(depth_register));
+    }
+    // Fill ignored coordinates
+    while (coords.size() < total_coord_count) {
+        coords.push_back(Immediate(0));
+    }
+
+    return GetTextureCode(instr, texture_type, process_mode, depth_compare, is_array, array_offset,
+                          0, std::move(coords));
+}
+
+Node4 ShaderIR::GetTexsCode(Instruction instr, TextureType texture_type,
+                            TextureProcessMode process_mode, bool depth_compare, bool is_array) {
+    const bool lod_bias_enabled =
+        (process_mode != TextureProcessMode::None && process_mode != TextureProcessMode::LZ);
+
+    const auto [coord_count, total_coord_count] = ValidateAndGetCoordinateElement(
+        texture_type, depth_compare, is_array, lod_bias_enabled, 4, 4);
+    // If enabled arrays index is always stored in the gpr8 field
+    const u64 array_register = instr.gpr8.Value();
+    // First coordinate index is stored in gpr8 field or (gpr8 + 1) when arrays are used
+    const u64 coord_register = array_register + (is_array ? 1 : 0);
+    const u64 last_coord_register =
+        (is_array || !(lod_bias_enabled || depth_compare) || (coord_count > 2))
+            ? static_cast<u64>(instr.gpr20.Value())
+            : coord_register + 1;
+
+    std::vector<Node> coords;
+    for (std::size_t i = 0; i < coord_count; ++i) {
+        const bool last = (i == (coord_count - 1)) && (coord_count > 1);
+        coords.push_back(GetRegister(last ? last_coord_register : coord_register + i));
+    }
+
+    std::size_t array_offset{};
+    if (is_array) {
+        array_offset = coords.size();
+        coords.push_back(GetRegister(array_register));
+    }
+    if (depth_compare) {
+        // Depth is always stored in the register signaled by gpr20
+        // or in the next register if lod or bias are used
+        const u64 depth_register = instr.gpr20.Value() + (lod_bias_enabled ? 1 : 0);
+        coords.push_back(GetRegister(depth_register));
+    }
+    // Fill ignored coordinates
+    while (coords.size() < total_coord_count) {
+        coords.push_back(Immediate(0));
+    }
+
+    return GetTextureCode(instr, texture_type, process_mode, depth_compare, is_array, array_offset,
+                          (coord_count > 2 ? 1 : 0), std::move(coords));
+}
+
+Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool depth_compare,
+                            bool is_array) {
+    const std::size_t coord_count = GetCoordCount(texture_type);
+    const std::size_t total_coord_count = coord_count + (is_array ? 1 : 0);
+    const std::size_t total_reg_count = total_coord_count + (depth_compare ? 1 : 0);
+
+    // If enabled arrays index is always stored in the gpr8 field
+    const u64 array_register = instr.gpr8.Value();
+    // First coordinate index is the gpr8 or gpr8 + 1 when arrays are used
+    const u64 coord_register = array_register + (is_array ? 1 : 0);
+
+    std::vector<Node> coords;
+
+    for (size_t i = 0; i < coord_count; ++i) {
+        coords.push_back(GetRegister(coord_register + i));
+    }
+    std::optional<u32> array_offset;
+    if (is_array) {
+        array_offset = static_cast<u32>(coords.size());
+        coords.push_back(GetRegister(array_register));
+    }
+
+    const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, depth_compare);
+
+    Node4 values;
+    for (u32 element = 0; element < values.size(); ++element) {
+        auto params = coords;
+        MetaTexture meta{sampler, element, static_cast<u32>(coords.size()), array_offset};
+        values[element] =
+            Operation(OperationCode::F4TextureGather, std::move(meta), std::move(params));
+    }
+
+    return values;
+}
+
+Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is_array) {
+    const std::size_t type_coord_count = GetCoordCount(texture_type);
+    const std::size_t total_coord_count = type_coord_count + (is_array ? 1 : 0);
+    const bool lod_enabled = instr.tlds.GetTextureProcessMode() == TextureProcessMode::LL;
+
+    // If enabled arrays index is always stored in the gpr8 field
+    const u64 array_register = instr.gpr8.Value();
+    // if is array gpr20 is used
+    const u64 coord_register = is_array ? instr.gpr20.Value() : instr.gpr8.Value();
+
+    const u64 last_coord_register =
+        ((type_coord_count > 2) || (type_coord_count == 2 && !lod_enabled)) && !is_array
+            ? static_cast<u64>(instr.gpr20.Value())
+            : coord_register + 1;
+
+    std::vector<Node> coords;
+
+    for (std::size_t i = 0; i < type_coord_count; ++i) {
+        const bool last = (i == (type_coord_count - 1)) && (type_coord_count > 1);
+        coords.push_back(GetRegister(last ? last_coord_register : coord_register + i));
+    }
+    std::optional<u32> array_offset;
+    if (is_array) {
+        array_offset = static_cast<u32>(coords.size());
+        coords.push_back(GetRegister(array_register));
+    }
+    const auto coords_count = static_cast<u32>(coords.size());
+
+    if (lod_enabled) {
+        // When lod is used always is in grp20
+        coords.push_back(GetRegister(instr.gpr20));
+    } else {
+        coords.push_back(Immediate(0));
+    }
+
+    const auto& sampler = GetSampler(instr.sampler, texture_type, is_array, false);
+
+    Node4 values;
+    for (u32 element = 0; element < values.size(); ++element) {
+        auto params = coords;
+        MetaTexture meta{sampler, element, coords_count, array_offset};
+        values[element] =
+            Operation(OperationCode::F4TexelFetch, std::move(meta), std::move(params));
+    }
+    return values;
+}
+
+std::tuple<std::size_t, std::size_t> ShaderIR::ValidateAndGetCoordinateElement(
+    TextureType texture_type, bool depth_compare, bool is_array, bool lod_bias_enabled,
+    std::size_t max_coords, std::size_t max_inputs) {
+    const std::size_t coord_count = GetCoordCount(texture_type);
+
+    std::size_t total_coord_count = coord_count + (is_array ? 1 : 0) + (depth_compare ? 1 : 0);
+    const std::size_t total_reg_count = total_coord_count + (lod_bias_enabled ? 1 : 0);
+    if (total_coord_count > max_coords || total_reg_count > max_inputs) {
+        UNIMPLEMENTED_MSG("Unsupported Texture operation");
+        total_coord_count = std::min(total_coord_count, max_coords);
+    }
+    // 1D.DC OpenGL is using a vec3 but 2nd component is ignored later.
+    total_coord_count +=
+        (depth_compare && !is_array && texture_type == TextureType::Texture1D) ? 1 : 0;
+
+    return {coord_count, total_coord_count};
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/other.cpp

@@ -0,0 +1,178 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::ConditionCode;
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Register;
+
+u32 ShaderIR::DecodeOther(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::EXIT: {
+        const Tegra::Shader::ConditionCode cc = instr.flow_condition_code;
+        UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, "EXIT condition code used: {}",
+                             static_cast<u32>(cc));
+
+        switch (instr.flow.cond) {
+        case Tegra::Shader::FlowCondition::Always:
+            bb.push_back(Operation(OperationCode::Exit));
+            if (instr.pred.pred_index == static_cast<u64>(Tegra::Shader::Pred::UnusedIndex)) {
+                // If this is an unconditional exit then just end processing here,
+                // otherwise we have to account for the possibility of the condition
+                // not being met, so continue processing the next instruction.
+                pc = MAX_PROGRAM_LENGTH - 1;
+            }
+            break;
+
+        case Tegra::Shader::FlowCondition::Fcsm_Tr:
+            // TODO(bunnei): What is this used for? If we assume this conditon is not
+            // satisifed, dual vertex shaders in Farming Simulator make more sense
+            UNIMPLEMENTED_MSG("Skipping unknown FlowCondition::Fcsm_Tr");
+            break;
+
+        default:
+            UNIMPLEMENTED_MSG("Unhandled flow condition: {}",
+                              static_cast<u32>(instr.flow.cond.Value()));
+        }
+        break;
+    }
+    case OpCode::Id::KIL: {
+        UNIMPLEMENTED_IF(instr.flow.cond != Tegra::Shader::FlowCondition::Always);
+
+        const Tegra::Shader::ConditionCode cc = instr.flow_condition_code;
+        UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, "KIL condition code used: {}",
+                             static_cast<u32>(cc));
+
+        bb.push_back(Operation(OperationCode::Discard));
+        break;
+    }
+    case OpCode::Id::MOV_SYS: {
+        switch (instr.sys20) {
+        case Tegra::Shader::SystemVariable::InvocationInfo: {
+            LOG_WARNING(HW_GPU, "MOV_SYS instruction with InvocationInfo is incomplete");
+            SetRegister(bb, instr.gpr0, Immediate(0u));
+            break;
+        }
+        case Tegra::Shader::SystemVariable::Ydirection: {
+            // Config pack's third value is Y_NEGATE's state.
+            SetRegister(bb, instr.gpr0, Operation(OperationCode::YNegate));
+            break;
+        }
+        default:
+            UNIMPLEMENTED_MSG("Unhandled system move: {}", static_cast<u32>(instr.sys20.Value()));
+        }
+        break;
+    }
+    case OpCode::Id::BRA: {
+        UNIMPLEMENTED_IF_MSG(instr.bra.constant_buffer != 0,
+                             "BRA with constant buffers are not implemented");
+
+        const u32 target = pc + instr.bra.GetBranchTarget();
+        const Node branch = Operation(OperationCode::Branch, Immediate(target));
+
+        const Tegra::Shader::ConditionCode cc = instr.flow_condition_code;
+        if (cc != Tegra::Shader::ConditionCode::T) {
+            bb.push_back(Conditional(GetConditionCode(cc), {branch}));
+        } else {
+            bb.push_back(branch);
+        }
+        break;
+    }
+    case OpCode::Id::SSY: {
+        UNIMPLEMENTED_IF_MSG(instr.bra.constant_buffer != 0,
+                             "Constant buffer flow is not supported");
+
+        // The SSY opcode tells the GPU where to re-converge divergent execution paths, it sets the
+        // target of the jump that the SYNC instruction will make. The SSY opcode has a similar
+        // structure to the BRA opcode.
+        const u32 target = pc + instr.bra.GetBranchTarget();
+        bb.push_back(Operation(OperationCode::PushFlowStack, Immediate(target)));
+        break;
+    }
+    case OpCode::Id::PBK: {
+        UNIMPLEMENTED_IF_MSG(instr.bra.constant_buffer != 0,
+                             "Constant buffer PBK is not supported");
+
+        // PBK pushes to a stack the address where BRK will jump to. This shares stack with SSY but
+        // using SYNC on a PBK address will kill the shader execution. We don't emulate this because
+        // it's very unlikely a driver will emit such invalid shader.
+        const u32 target = pc + instr.bra.GetBranchTarget();
+        bb.push_back(Operation(OperationCode::PushFlowStack, Immediate(target)));
+        break;
+    }
+    case OpCode::Id::SYNC: {
+        const Tegra::Shader::ConditionCode cc = instr.flow_condition_code;
+        UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, "SYNC condition code used: {}",
+                             static_cast<u32>(cc));
+
+        // The SYNC opcode jumps to the address previously set by the SSY opcode
+        bb.push_back(Operation(OperationCode::PopFlowStack));
+        break;
+    }
+    case OpCode::Id::BRK: {
+        const Tegra::Shader::ConditionCode cc = instr.flow_condition_code;
+        UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, "BRK condition code used: {}",
+                             static_cast<u32>(cc));
+
+        // The BRK opcode jumps to the address previously set by the PBK opcode
+        bb.push_back(Operation(OperationCode::PopFlowStack));
+        break;
+    }
+    case OpCode::Id::IPA: {
+        const auto& attribute = instr.attribute.fmt28;
+        const Tegra::Shader::IpaMode input_mode{instr.ipa.interp_mode.Value(),
+                                                instr.ipa.sample_mode.Value()};
+
+        const Node attr = GetInputAttribute(attribute.index, attribute.element, input_mode);
+        const Node value = GetSaturatedFloat(attr, instr.ipa.saturate);
+
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::OUT_R: {
+        UNIMPLEMENTED_IF_MSG(instr.gpr20.Value() != Register::ZeroIndex,
+                             "Stream buffer is not supported");
+
+        if (instr.out.emit) {
+            // gpr0 is used to store the next address and gpr8 contains the address to emit.
+            // Hardware uses pointers here but we just ignore it
+            bb.push_back(Operation(OperationCode::EmitVertex));
+            SetRegister(bb, instr.gpr0, Immediate(0));
+        }
+        if (instr.out.cut) {
+            bb.push_back(Operation(OperationCode::EndPrimitive));
+        }
+        break;
+    }
+    case OpCode::Id::ISBERD: {
+        UNIMPLEMENTED_IF(instr.isberd.o != 0);
+        UNIMPLEMENTED_IF(instr.isberd.skew != 0);
+        UNIMPLEMENTED_IF(instr.isberd.shift != Tegra::Shader::IsberdShift::None);
+        UNIMPLEMENTED_IF(instr.isberd.mode != Tegra::Shader::IsberdMode::None);
+        LOG_WARNING(HW_GPU, "ISBERD instruction is incomplete");
+        SetRegister(bb, instr.gpr0, GetRegister(instr.gpr8));
+        break;
+    }
+    case OpCode::Id::DEPBAR: {
+        LOG_WARNING(HW_GPU, "DEPBAR instruction is stubbed");
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/predicate_set_predicate.cpp

@@ -0,0 +1,67 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+
+u32 ShaderIR::DecodePredicateSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::PSETP: {
+        const Node op_a = GetPredicate(instr.psetp.pred12, instr.psetp.neg_pred12 != 0);
+        const Node op_b = GetPredicate(instr.psetp.pred29, instr.psetp.neg_pred29 != 0);
+
+        // We can't use the constant predicate as destination.
+        ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
+
+        const Node second_pred = GetPredicate(instr.psetp.pred39, instr.psetp.neg_pred39 != 0);
+
+        const OperationCode combiner = GetPredicateCombiner(instr.psetp.op);
+        const Node predicate = Operation(combiner, op_a, op_b);
+
+        // Set the primary predicate to the result of Predicate OP SecondPredicate
+        SetPredicate(bb, instr.psetp.pred3, Operation(combiner, predicate, second_pred));
+
+        if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+            // Set the secondary predicate to the result of !Predicate OP SecondPredicate, if
+            // enabled
+            SetPredicate(bb, instr.psetp.pred0,
+                         Operation(combiner, Operation(OperationCode::LogicalNegate, predicate),
+                                   second_pred));
+        }
+        break;
+    }
+    case OpCode::Id::CSETP: {
+        const Node pred = GetPredicate(instr.csetp.pred39, instr.csetp.neg_pred39 != 0);
+        const Node condition_code = GetConditionCode(instr.csetp.cc);
+
+        const OperationCode combiner = GetPredicateCombiner(instr.csetp.op);
+
+        if (instr.csetp.pred3 != static_cast<u64>(Pred::UnusedIndex)) {
+            SetPredicate(bb, instr.csetp.pred3, Operation(combiner, condition_code, pred));
+        }
+        if (instr.csetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+            const Node neg_cc = Operation(OperationCode::LogicalNegate, condition_code);
+            SetPredicate(bb, instr.csetp.pred0, Operation(combiner, neg_cc, pred));
+        }
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled predicate instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/predicate_set_register.cpp

@@ -0,0 +1,46 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodePredicateSetRegister(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                         "Condition codes generation in PSET is not implemented");
+
+    const Node op_a = GetPredicate(instr.pset.pred12, instr.pset.neg_pred12 != 0);
+    const Node op_b = GetPredicate(instr.pset.pred29, instr.pset.neg_pred29 != 0);
+    const Node first_pred = Operation(GetPredicateCombiner(instr.pset.cond), op_a, op_b);
+
+    const Node second_pred = GetPredicate(instr.pset.pred39, instr.pset.neg_pred39 != 0);
+
+    const OperationCode combiner = GetPredicateCombiner(instr.pset.op);
+    const Node predicate = Operation(combiner, first_pred, second_pred);
+
+    const Node true_value = instr.pset.bf ? Immediate(1.0f) : Immediate(0xffffffff);
+    const Node false_value = instr.pset.bf ? Immediate(0.0f) : Immediate(0);
+    const Node value =
+        Operation(OperationCode::Select, PRECISE, predicate, true_value, false_value);
+
+    if (instr.pset.bf) {
+        SetInternalFlagsFromFloat(bb, value, instr.generates_cc);
+    } else {
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+    }
+    SetRegister(bb, instr.gpr0, value);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/register_set_predicate.cpp

@@ -0,0 +1,51 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeRegisterSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF(instr.r2p.mode != Tegra::Shader::R2pMode::Pr);
+
+    const Node apply_mask = [&]() {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::R2P_IMM:
+            return Immediate(static_cast<u32>(instr.r2p.immediate_mask));
+        default:
+            UNREACHABLE();
+            return Immediate(static_cast<u32>(instr.r2p.immediate_mask));
+        }
+    }();
+    const Node mask = GetRegister(instr.gpr8);
+    const auto offset = static_cast<u32>(instr.r2p.byte) * 8;
+
+    constexpr u32 programmable_preds = 7;
+    for (u64 pred = 0; pred < programmable_preds; ++pred) {
+        const auto shift = static_cast<u32>(pred);
+
+        const Node apply_compare = BitfieldExtract(apply_mask, shift, 1);
+        const Node condition =
+            Operation(OperationCode::LogicalUNotEqual, apply_compare, Immediate(0));
+
+        const Node value_compare = BitfieldExtract(mask, offset + shift, 1);
+        const Node value = Operation(OperationCode::LogicalUNotEqual, value_compare, Immediate(0));
+
+        const Node code = Operation(OperationCode::LogicalAssign, GetPredicate(pred), value);
+        bb.push_back(Conditional(condition, {code}));
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/shift.cpp

@@ -0,0 +1,55 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeShift(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const Node op_a = GetRegister(instr.gpr8);
+    const Node op_b = [&]() {
+        if (instr.is_b_imm) {
+            return Immediate(instr.alu.GetSignedImm20_20());
+        } else if (instr.is_b_gpr) {
+            return GetRegister(instr.gpr20);
+        } else {
+            return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset);
+        }
+    }();
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::SHR_C:
+    case OpCode::Id::SHR_R:
+    case OpCode::Id::SHR_IMM: {
+        const Node value = SignedOperation(OperationCode::IArithmeticShiftRight,
+                                           instr.shift.is_signed, PRECISE, op_a, op_b);
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::SHL_C:
+    case OpCode::Id::SHL_R:
+    case OpCode::Id::SHL_IMM: {
+        const Node value = Operation(OperationCode::ILogicalShiftLeft, PRECISE, op_a, op_b);
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled shift instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/video.cpp

@@ -0,0 +1,111 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+using Tegra::Shader::Pred;
+using Tegra::Shader::VideoType;
+using Tegra::Shader::VmadShr;
+
+u32 ShaderIR::DecodeVideo(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    const Node op_a =
+        GetVideoOperand(GetRegister(instr.gpr8), instr.video.is_byte_chunk_a, instr.video.signed_a,
+                        instr.video.type_a, instr.video.byte_height_a);
+    const Node op_b = [&]() {
+        if (instr.video.use_register_b) {
+            return GetVideoOperand(GetRegister(instr.gpr20), instr.video.is_byte_chunk_b,
+                                   instr.video.signed_b, instr.video.type_b,
+                                   instr.video.byte_height_b);
+        }
+        if (instr.video.signed_b) {
+            const auto imm = static_cast<s16>(instr.alu.GetImm20_16());
+            return Immediate(static_cast<u32>(imm));
+        } else {
+            return Immediate(instr.alu.GetImm20_16());
+        }
+    }();
+
+    switch (opcode->get().GetId()) {
+    case OpCode::Id::VMAD: {
+        const bool result_signed = instr.video.signed_a == 1 || instr.video.signed_b == 1;
+        const Node op_c = GetRegister(instr.gpr39);
+
+        Node value = SignedOperation(OperationCode::IMul, result_signed, NO_PRECISE, op_a, op_b);
+        value = SignedOperation(OperationCode::IAdd, result_signed, NO_PRECISE, value, op_c);
+
+        if (instr.vmad.shr == VmadShr::Shr7 || instr.vmad.shr == VmadShr::Shr15) {
+            const Node shift = Immediate(instr.vmad.shr == VmadShr::Shr7 ? 7 : 15);
+            value =
+                SignedOperation(OperationCode::IArithmeticShiftRight, result_signed, value, shift);
+        }
+
+        SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
+        SetRegister(bb, instr.gpr0, value);
+        break;
+    }
+    case OpCode::Id::VSETP: {
+        // We can't use the constant predicate as destination.
+        ASSERT(instr.vsetp.pred3 != static_cast<u64>(Pred::UnusedIndex));
+
+        const bool sign = instr.video.signed_a == 1 || instr.video.signed_b == 1;
+        const Node first_pred = GetPredicateComparisonInteger(instr.vsetp.cond, sign, op_a, op_b);
+        const Node second_pred = GetPredicate(instr.vsetp.pred39, false);
+
+        const OperationCode combiner = GetPredicateCombiner(instr.vsetp.op);
+
+        // Set the primary predicate to the result of Predicate OP SecondPredicate
+        SetPredicate(bb, instr.vsetp.pred3, Operation(combiner, first_pred, second_pred));
+
+        if (instr.vsetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) {
+            // Set the secondary predicate to the result of !Predicate OP SecondPredicate,
+            // if enabled
+            const Node negate_pred = Operation(OperationCode::LogicalNegate, first_pred);
+            SetPredicate(bb, instr.vsetp.pred0, Operation(combiner, negate_pred, second_pred));
+        }
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unhandled video instruction: {}", opcode->get().GetName());
+    }
+
+    return pc;
+}
+
+Node ShaderIR::GetVideoOperand(Node op, bool is_chunk, bool is_signed,
+                               Tegra::Shader::VideoType type, u64 byte_height) {
+    if (!is_chunk) {
+        return BitfieldExtract(op, static_cast<u32>(byte_height * 8), 8);
+    }
+    const Node zero = Immediate(0);
+
+    switch (type) {
+    case Tegra::Shader::VideoType::Size16_Low:
+        return BitfieldExtract(op, 0, 16);
+    case Tegra::Shader::VideoType::Size16_High:
+        return BitfieldExtract(op, 16, 16);
+    case Tegra::Shader::VideoType::Size32:
+        // TODO(Rodrigo): From my hardware tests it becomes a bit "mad" when this type is used
+        // (1 * 1 + 0 == 0x5b800000). Until a better explanation is found: abort.
+        UNIMPLEMENTED();
+        return zero;
+    case Tegra::Shader::VideoType::Invalid:
+        UNREACHABLE_MSG("Invalid instruction encoding");
+        return zero;
+    default:
+        UNREACHABLE();
+        return zero;
+    }
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/decode/xmad.cpp

@@ -0,0 +1,97 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Instruction;
+using Tegra::Shader::OpCode;
+
+u32 ShaderIR::DecodeXmad(BasicBlock& bb, const BasicBlock& code, u32 pc) {
+    const Instruction instr = {program_code[pc]};
+    const auto opcode = OpCode::Decode(instr);
+
+    UNIMPLEMENTED_IF(instr.xmad.sign_a);
+    UNIMPLEMENTED_IF(instr.xmad.sign_b);
+    UNIMPLEMENTED_IF_MSG(instr.generates_cc,
+                         "Condition codes generation in XMAD is not implemented");
+
+    Node op_a = GetRegister(instr.gpr8);
+
+    // TODO(bunnei): Needs to be fixed once op_a or op_b is signed
+    UNIMPLEMENTED_IF(instr.xmad.sign_a != instr.xmad.sign_b);
+    const bool is_signed_a = instr.xmad.sign_a == 1;
+    const bool is_signed_b = instr.xmad.sign_b == 1;
+    const bool is_signed_c = is_signed_a;
+
+    auto [is_merge, op_b, op_c] = [&]() -> std::tuple<bool, Node, Node> {
+        switch (opcode->get().GetId()) {
+        case OpCode::Id::XMAD_CR:
+            return {instr.xmad.merge_56, GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset),
+                    GetRegister(instr.gpr39)};
+        case OpCode::Id::XMAD_RR:
+            return {instr.xmad.merge_37, GetRegister(instr.gpr20), GetRegister(instr.gpr39)};
+        case OpCode::Id::XMAD_RC:
+            return {false, GetRegister(instr.gpr39),
+                    GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset)};
+        case OpCode::Id::XMAD_IMM:
+            return {instr.xmad.merge_37, Immediate(static_cast<u32>(instr.xmad.imm20_16)),
+                    GetRegister(instr.gpr39)};
+        }
+        UNIMPLEMENTED_MSG("Unhandled XMAD instruction: {}", opcode->get().GetName());
+        return {false, Immediate(0), Immediate(0)};
+    }();
+
+    op_a = BitfieldExtract(op_a, instr.xmad.high_a ? 16 : 0, 16);
+
+    const Node original_b = op_b;
+    op_b = BitfieldExtract(op_b, instr.xmad.high_b ? 16 : 0, 16);
+
+    // TODO(Rodrigo): Use an appropiate sign for this operation
+    Node product = Operation(OperationCode::IMul, NO_PRECISE, op_a, op_b);
+    if (instr.xmad.product_shift_left) {
+        product = Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, product, Immediate(16));
+    }
+
+    const Node original_c = op_c;
+    op_c = [&]() {
+        switch (instr.xmad.mode) {
+        case Tegra::Shader::XmadMode::None:
+            return original_c;
+        case Tegra::Shader::XmadMode::CLo:
+            return BitfieldExtract(original_c, 0, 16);
+        case Tegra::Shader::XmadMode::CHi:
+            return BitfieldExtract(original_c, 16, 16);
+        case Tegra::Shader::XmadMode::CBcc: {
+            const Node shifted_b = SignedOperation(OperationCode::ILogicalShiftLeft, is_signed_b,
+                                                   NO_PRECISE, original_b, Immediate(16));
+            return SignedOperation(OperationCode::IAdd, is_signed_c, NO_PRECISE, original_c,
+                                   shifted_b);
+        }
+        default:
+            UNIMPLEMENTED_MSG("Unhandled XMAD mode: {}", static_cast<u32>(instr.xmad.mode.Value()));
+            return Immediate(0);
+        }
+    }();
+
+    // TODO(Rodrigo): Use an appropiate sign for this operation
+    Node sum = Operation(OperationCode::IAdd, product, op_c);
+    if (is_merge) {
+        const Node a = BitfieldExtract(sum, 0, 16);
+        const Node b =
+            Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, original_b, Immediate(16));
+        sum = Operation(OperationCode::IBitwiseOr, NO_PRECISE, a, b);
+    }
+
+    SetInternalFlagsFromInteger(bb, sum, instr.generates_cc);
+    SetRegister(bb, instr.gpr0, sum);
+
+    return pc;
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/shader_ir.cpp

@@ -0,0 +1,444 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cmath>
+#include <unordered_map>
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "common/logging/log.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+using Tegra::Shader::Attribute;
+using Tegra::Shader::Instruction;
+using Tegra::Shader::IpaMode;
+using Tegra::Shader::Pred;
+using Tegra::Shader::PredCondition;
+using Tegra::Shader::PredOperation;
+using Tegra::Shader::Register;
+
+Node ShaderIR::StoreNode(NodeData&& node_data) {
+    auto store = std::make_unique<NodeData>(node_data);
+    const Node node = store.get();
+    stored_nodes.push_back(std::move(store));
+    return node;
+}
+
+Node ShaderIR::Conditional(Node condition, std::vector<Node>&& code) {
+    return StoreNode(ConditionalNode(condition, std::move(code)));
+}
+
+Node ShaderIR::Comment(const std::string& text) {
+    return StoreNode(CommentNode(text));
+}
+
+Node ShaderIR::Immediate(u32 value) {
+    return StoreNode(ImmediateNode(value));
+}
+
+Node ShaderIR::GetRegister(Register reg) {
+    if (reg != Register::ZeroIndex) {
+        used_registers.insert(static_cast<u32>(reg));
+    }
+    return StoreNode(GprNode(reg));
+}
+
+Node ShaderIR::GetImmediate19(Instruction instr) {
+    return Immediate(instr.alu.GetImm20_19());
+}
+
+Node ShaderIR::GetImmediate32(Instruction instr) {
+    return Immediate(instr.alu.GetImm20_32());
+}
+
+Node ShaderIR::GetConstBuffer(u64 index_, u64 offset_) {
+    const auto index = static_cast<u32>(index_);
+    const auto offset = static_cast<u32>(offset_);
+
+    const auto [entry, is_new] = used_cbufs.try_emplace(index);
+    entry->second.MarkAsUsed(offset);
+
+    return StoreNode(CbufNode(index, Immediate(offset)));
+}
+
+Node ShaderIR::GetConstBufferIndirect(u64 index_, u64 offset_, Node node) {
+    const auto index = static_cast<u32>(index_);
+    const auto offset = static_cast<u32>(offset_);
+
+    const auto [entry, is_new] = used_cbufs.try_emplace(index);
+    entry->second.MarkAsUsedIndirect();
+
+    const Node final_offset = Operation(OperationCode::UAdd, NO_PRECISE, node, Immediate(offset));
+    return StoreNode(CbufNode(index, final_offset));
+}
+
+Node ShaderIR::GetPredicate(u64 pred_, bool negated) {
+    const auto pred = static_cast<Pred>(pred_);
+    if (pred != Pred::UnusedIndex && pred != Pred::NeverExecute) {
+        used_predicates.insert(pred);
+    }
+
+    return StoreNode(PredicateNode(pred, negated));
+}
+
+Node ShaderIR::GetPredicate(bool immediate) {
+    return GetPredicate(static_cast<u64>(immediate ? Pred::UnusedIndex : Pred::NeverExecute));
+}
+
+Node ShaderIR::GetInputAttribute(Attribute::Index index, u64 element,
+                                 const Tegra::Shader::IpaMode& input_mode, Node buffer) {
+    const auto [entry, is_new] =
+        used_input_attributes.emplace(std::make_pair(index, std::set<Tegra::Shader::IpaMode>{}));
+    entry->second.insert(input_mode);
+
+    return StoreNode(AbufNode(index, static_cast<u32>(element), input_mode, buffer));
+}
+
+Node ShaderIR::GetOutputAttribute(Attribute::Index index, u64 element, Node buffer) {
+    if (index == Attribute::Index::ClipDistances0123 ||
+        index == Attribute::Index::ClipDistances4567) {
+        const auto clip_index =
+            static_cast<u32>((index == Attribute::Index::ClipDistances4567 ? 1 : 0) + element);
+        used_clip_distances.at(clip_index) = true;
+    }
+    used_output_attributes.insert(index);
+
+    return StoreNode(AbufNode(index, static_cast<u32>(element), buffer));
+}
+
+Node ShaderIR::GetInternalFlag(InternalFlag flag, bool negated) {
+    const Node node = StoreNode(InternalFlagNode(flag));
+    if (negated) {
+        return Operation(OperationCode::LogicalNegate, node);
+    }
+    return node;
+}
+
+Node ShaderIR::GetLocalMemory(Node address) {
+    return StoreNode(LmemNode(address));
+}
+
+Node ShaderIR::GetTemporal(u32 id) {
+    return GetRegister(Register::ZeroIndex + 1 + id);
+}
+
+Node ShaderIR::GetOperandAbsNegFloat(Node value, bool absolute, bool negate) {
+    if (absolute) {
+        value = Operation(OperationCode::FAbsolute, NO_PRECISE, value);
+    }
+    if (negate) {
+        value = Operation(OperationCode::FNegate, NO_PRECISE, value);
+    }
+    return value;
+}
+
+Node ShaderIR::GetSaturatedFloat(Node value, bool saturate) {
+    if (!saturate) {
+        return value;
+    }
+    const Node positive_zero = Immediate(std::copysignf(0, 1));
+    const Node positive_one = Immediate(1.0f);
+    return Operation(OperationCode::FClamp, NO_PRECISE, value, positive_zero, positive_one);
+}
+
+Node ShaderIR::ConvertIntegerSize(Node value, Tegra::Shader::Register::Size size, bool is_signed) {
+    switch (size) {
+    case Register::Size::Byte:
+        value = SignedOperation(OperationCode::ILogicalShiftLeft, is_signed, NO_PRECISE, value,
+                                Immediate(24));
+        value = SignedOperation(OperationCode::IArithmeticShiftRight, is_signed, NO_PRECISE, value,
+                                Immediate(24));
+        return value;
+    case Register::Size::Short:
+        value = SignedOperation(OperationCode::ILogicalShiftLeft, is_signed, NO_PRECISE, value,
+                                Immediate(16));
+        value = SignedOperation(OperationCode::IArithmeticShiftRight, is_signed, NO_PRECISE, value,
+                                Immediate(16));
+    case Register::Size::Word:
+        // Default - do nothing
+        return value;
+    default:
+        UNREACHABLE_MSG("Unimplemented conversion size: {}", static_cast<u32>(size));
+        return value;
+    }
+}
+
+Node ShaderIR::GetOperandAbsNegInteger(Node value, bool absolute, bool negate, bool is_signed) {
+    if (!is_signed) {
+        // Absolute or negate on an unsigned is pointless
+        return value;
+    }
+    if (absolute) {
+        value = Operation(OperationCode::IAbsolute, NO_PRECISE, value);
+    }
+    if (negate) {
+        value = Operation(OperationCode::INegate, NO_PRECISE, value);
+    }
+    return value;
+}
+
+Node ShaderIR::UnpackHalfImmediate(Instruction instr, bool has_negation) {
+    const Node value = Immediate(instr.half_imm.PackImmediates());
+    if (!has_negation) {
+        return value;
+    }
+    const Node first_negate = GetPredicate(instr.half_imm.first_negate != 0);
+    const Node second_negate = GetPredicate(instr.half_imm.second_negate != 0);
+
+    return Operation(OperationCode::HNegate, HALF_NO_PRECISE, value, first_negate, second_negate);
+}
+
+Node ShaderIR::HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge) {
+    switch (merge) {
+    case Tegra::Shader::HalfMerge::H0_H1:
+        return src;
+    case Tegra::Shader::HalfMerge::F32:
+        return Operation(OperationCode::HMergeF32, src);
+    case Tegra::Shader::HalfMerge::Mrg_H0:
+        return Operation(OperationCode::HMergeH0, dest, src);
+    case Tegra::Shader::HalfMerge::Mrg_H1:
+        return Operation(OperationCode::HMergeH1, dest, src);
+    }
+    UNREACHABLE();
+    return src;
+}
+
+Node ShaderIR::GetOperandAbsNegHalf(Node value, bool absolute, bool negate) {
+    if (absolute) {
+        value = Operation(OperationCode::HAbsolute, HALF_NO_PRECISE, value);
+    }
+    if (negate) {
+        value = Operation(OperationCode::HNegate, HALF_NO_PRECISE, value, GetPredicate(true),
+                          GetPredicate(true));
+    }
+    return value;
+}
+
+Node ShaderIR::GetPredicateComparisonFloat(PredCondition condition, Node op_a, Node op_b) {
+    static const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
+        {PredCondition::LessThan, OperationCode::LogicalFLessThan},
+        {PredCondition::Equal, OperationCode::LogicalFEqual},
+        {PredCondition::LessEqual, OperationCode::LogicalFLessEqual},
+        {PredCondition::GreaterThan, OperationCode::LogicalFGreaterThan},
+        {PredCondition::NotEqual, OperationCode::LogicalFNotEqual},
+        {PredCondition::GreaterEqual, OperationCode::LogicalFGreaterEqual},
+        {PredCondition::LessThanWithNan, OperationCode::LogicalFLessThan},
+        {PredCondition::NotEqualWithNan, OperationCode::LogicalFNotEqual},
+        {PredCondition::LessEqualWithNan, OperationCode::LogicalFLessEqual},
+        {PredCondition::GreaterThanWithNan, OperationCode::LogicalFGreaterThan},
+        {PredCondition::GreaterEqualWithNan, OperationCode::LogicalFGreaterEqual}};
+
+    const auto comparison{PredicateComparisonTable.find(condition)};
+    UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
+                         "Unknown predicate comparison operation");
+
+    Node predicate = Operation(comparison->second, NO_PRECISE, op_a, op_b);
+
+    if (condition == PredCondition::LessThanWithNan ||
+        condition == PredCondition::NotEqualWithNan ||
+        condition == PredCondition::LessEqualWithNan ||
+        condition == PredCondition::GreaterThanWithNan ||
+        condition == PredCondition::GreaterEqualWithNan) {
+
+        predicate = Operation(OperationCode::LogicalOr, predicate,
+                              Operation(OperationCode::LogicalFIsNan, op_a));
+        predicate = Operation(OperationCode::LogicalOr, predicate,
+                              Operation(OperationCode::LogicalFIsNan, op_b));
+    }
+
+    return predicate;
+}
+
+Node ShaderIR::GetPredicateComparisonInteger(PredCondition condition, bool is_signed, Node op_a,
+                                             Node op_b) {
+    static const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
+        {PredCondition::LessThan, OperationCode::LogicalILessThan},
+        {PredCondition::Equal, OperationCode::LogicalIEqual},
+        {PredCondition::LessEqual, OperationCode::LogicalILessEqual},
+        {PredCondition::GreaterThan, OperationCode::LogicalIGreaterThan},
+        {PredCondition::NotEqual, OperationCode::LogicalINotEqual},
+        {PredCondition::GreaterEqual, OperationCode::LogicalIGreaterEqual},
+        {PredCondition::LessThanWithNan, OperationCode::LogicalILessThan},
+        {PredCondition::NotEqualWithNan, OperationCode::LogicalINotEqual},
+        {PredCondition::LessEqualWithNan, OperationCode::LogicalILessEqual},
+        {PredCondition::GreaterThanWithNan, OperationCode::LogicalIGreaterThan},
+        {PredCondition::GreaterEqualWithNan, OperationCode::LogicalIGreaterEqual}};
+
+    const auto comparison{PredicateComparisonTable.find(condition)};
+    UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
+                         "Unknown predicate comparison operation");
+
+    Node predicate = SignedOperation(comparison->second, is_signed, NO_PRECISE, op_a, op_b);
+
+    UNIMPLEMENTED_IF_MSG(condition == PredCondition::LessThanWithNan ||
+                             condition == PredCondition::NotEqualWithNan ||
+                             condition == PredCondition::LessEqualWithNan ||
+                             condition == PredCondition::GreaterThanWithNan ||
+                             condition == PredCondition::GreaterEqualWithNan,
+                         "NaN comparisons for integers are not implemented");
+    return predicate;
+}
+
+Node ShaderIR::GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition,
+                                          const MetaHalfArithmetic& meta, Node op_a, Node op_b) {
+
+    UNIMPLEMENTED_IF_MSG(condition == PredCondition::LessThanWithNan ||
+                             condition == PredCondition::NotEqualWithNan ||
+                             condition == PredCondition::LessEqualWithNan ||
+                             condition == PredCondition::GreaterThanWithNan ||
+                             condition == PredCondition::GreaterEqualWithNan,
+                         "Unimplemented NaN comparison for half floats");
+
+    static const std::unordered_map<PredCondition, OperationCode> PredicateComparisonTable = {
+        {PredCondition::LessThan, OperationCode::Logical2HLessThan},
+        {PredCondition::Equal, OperationCode::Logical2HEqual},
+        {PredCondition::LessEqual, OperationCode::Logical2HLessEqual},
+        {PredCondition::GreaterThan, OperationCode::Logical2HGreaterThan},
+        {PredCondition::NotEqual, OperationCode::Logical2HNotEqual},
+        {PredCondition::GreaterEqual, OperationCode::Logical2HGreaterEqual},
+        {PredCondition::LessThanWithNan, OperationCode::Logical2HLessThan},
+        {PredCondition::NotEqualWithNan, OperationCode::Logical2HNotEqual},
+        {PredCondition::LessEqualWithNan, OperationCode::Logical2HLessEqual},
+        {PredCondition::GreaterThanWithNan, OperationCode::Logical2HGreaterThan},
+        {PredCondition::GreaterEqualWithNan, OperationCode::Logical2HGreaterEqual}};
+
+    const auto comparison{PredicateComparisonTable.find(condition)};
+    UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonTable.end(),
+                         "Unknown predicate comparison operation");
+
+    const Node predicate = Operation(comparison->second, meta, op_a, op_b);
+
+    return predicate;
+}
+
+OperationCode ShaderIR::GetPredicateCombiner(PredOperation operation) {
+    static const std::unordered_map<PredOperation, OperationCode> PredicateOperationTable = {
+        {PredOperation::And, OperationCode::LogicalAnd},
+        {PredOperation::Or, OperationCode::LogicalOr},
+        {PredOperation::Xor, OperationCode::LogicalXor},
+    };
+
+    const auto op = PredicateOperationTable.find(operation);
+    UNIMPLEMENTED_IF_MSG(op == PredicateOperationTable.end(), "Unknown predicate operation");
+    return op->second;
+}
+
+Node ShaderIR::GetConditionCode(Tegra::Shader::ConditionCode cc) {
+    switch (cc) {
+    case Tegra::Shader::ConditionCode::NEU:
+        return GetInternalFlag(InternalFlag::Zero, true);
+    default:
+        UNIMPLEMENTED_MSG("Unimplemented condition code: {}", static_cast<u32>(cc));
+        return GetPredicate(static_cast<u64>(Pred::NeverExecute));
+    }
+}
+
+void ShaderIR::SetRegister(BasicBlock& bb, Register dest, Node src) {
+    bb.push_back(Operation(OperationCode::Assign, GetRegister(dest), src));
+}
+
+void ShaderIR::SetPredicate(BasicBlock& bb, u64 dest, Node src) {
+    bb.push_back(Operation(OperationCode::LogicalAssign, GetPredicate(dest), src));
+}
+
+void ShaderIR::SetInternalFlag(BasicBlock& bb, InternalFlag flag, Node value) {
+    bb.push_back(Operation(OperationCode::LogicalAssign, GetInternalFlag(flag), value));
+}
+
+void ShaderIR::SetLocalMemory(BasicBlock& bb, Node address, Node value) {
+    bb.push_back(Operation(OperationCode::Assign, GetLocalMemory(address), value));
+}
+
+void ShaderIR::SetTemporal(BasicBlock& bb, u32 id, Node value) {
+    SetRegister(bb, Register::ZeroIndex + 1 + id, value);
+}
+
+void ShaderIR::SetInternalFlagsFromFloat(BasicBlock& bb, Node value, bool sets_cc) {
+    if (!sets_cc) {
+        return;
+    }
+    const Node zerop = Operation(OperationCode::LogicalFEqual, value, Immediate(0.0f));
+    SetInternalFlag(bb, InternalFlag::Zero, zerop);
+    LOG_WARNING(HW_GPU, "Condition codes implementation is incomplete");
+}
+
+void ShaderIR::SetInternalFlagsFromInteger(BasicBlock& bb, Node value, bool sets_cc) {
+    if (!sets_cc) {
+        return;
+    }
+    const Node zerop = Operation(OperationCode::LogicalIEqual, value, Immediate(0));
+    SetInternalFlag(bb, InternalFlag::Zero, zerop);
+    LOG_WARNING(HW_GPU, "Condition codes implementation is incomplete");
+}
+
+Node ShaderIR::BitfieldExtract(Node value, u32 offset, u32 bits) {
+    return Operation(OperationCode::UBitfieldExtract, NO_PRECISE, value, Immediate(offset),
+                     Immediate(bits));
+}
+
+/*static*/ OperationCode ShaderIR::SignedToUnsignedCode(OperationCode operation_code,
+                                                        bool is_signed) {
+    if (is_signed) {
+        return operation_code;
+    }
+    switch (operation_code) {
+    case OperationCode::FCastInteger:
+        return OperationCode::FCastUInteger;
+    case OperationCode::IAdd:
+        return OperationCode::UAdd;
+    case OperationCode::IMul:
+        return OperationCode::UMul;
+    case OperationCode::IDiv:
+        return OperationCode::UDiv;
+    case OperationCode::IMin:
+        return OperationCode::UMin;
+    case OperationCode::IMax:
+        return OperationCode::UMax;
+    case OperationCode::ICastFloat:
+        return OperationCode::UCastFloat;
+    case OperationCode::ICastUnsigned:
+        return OperationCode::UCastSigned;
+    case OperationCode::ILogicalShiftLeft:
+        return OperationCode::ULogicalShiftLeft;
+    case OperationCode::ILogicalShiftRight:
+        return OperationCode::ULogicalShiftRight;
+    case OperationCode::IArithmeticShiftRight:
+        return OperationCode::UArithmeticShiftRight;
+    case OperationCode::IBitwiseAnd:
+        return OperationCode::UBitwiseAnd;
+    case OperationCode::IBitwiseOr:
+        return OperationCode::UBitwiseOr;
+    case OperationCode::IBitwiseXor:
+        return OperationCode::UBitwiseXor;
+    case OperationCode::IBitwiseNot:
+        return OperationCode::UBitwiseNot;
+    case OperationCode::IBitfieldInsert:
+        return OperationCode::UBitfieldInsert;
+    case OperationCode::IBitCount:
+        return OperationCode::UBitCount;
+    case OperationCode::LogicalILessThan:
+        return OperationCode::LogicalULessThan;
+    case OperationCode::LogicalIEqual:
+        return OperationCode::LogicalUEqual;
+    case OperationCode::LogicalILessEqual:
+        return OperationCode::LogicalULessEqual;
+    case OperationCode::LogicalIGreaterThan:
+        return OperationCode::LogicalUGreaterThan;
+    case OperationCode::LogicalINotEqual:
+        return OperationCode::LogicalUNotEqual;
+    case OperationCode::LogicalIGreaterEqual:
+        return OperationCode::LogicalUGreaterEqual;
+    case OperationCode::INegate:
+        UNREACHABLE_MSG("Can't negate an unsigned integer");
+    case OperationCode::IAbsolute:
+        UNREACHABLE_MSG("Can't apply absolute to an unsigned integer");
+    }
+    UNREACHABLE_MSG("Unknown signed operation with code={}", static_cast<u32>(operation_code));
+    return {};
+}
+
+} // namespace VideoCommon::Shader

src/video_core/shader/shader_ir.h

@@ -0,0 +1,793 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <cstring>
+#include <map>
+#include <set>
+#include <string>
+#include <tuple>
+#include <variant>
+#include <vector>
+
+#include "common/common_types.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/engines/shader_bytecode.h"
+#include "video_core/engines/shader_header.h"
+
+namespace VideoCommon::Shader {
+
+class OperationNode;
+class ConditionalNode;
+class GprNode;
+class ImmediateNode;
+class InternalFlagNode;
+class PredicateNode;
+class AbufNode; ///< Attribute buffer
+class CbufNode; ///< Constant buffer
+class LmemNode; ///< Local memory
+class GmemNode; ///< Global memory
+class CommentNode;
+
+using ProgramCode = std::vector<u64>;
+
+using NodeData =
+    std::variant<OperationNode, ConditionalNode, GprNode, ImmediateNode, InternalFlagNode,
+                 PredicateNode, AbufNode, CbufNode, LmemNode, GmemNode, CommentNode>;
+using Node = const NodeData*;
+using Node4 = std::array<Node, 4>;
+using BasicBlock = std::vector<Node>;
+
+constexpr u32 MAX_PROGRAM_LENGTH = 0x1000;
+
+enum class OperationCode {
+    Assign, /// (float& dest, float src) -> void
+
+    Select, /// (MetaArithmetic, bool pred, float a, float b) -> float
+
+    FAdd,          /// (MetaArithmetic, float a, float b) -> float
+    FMul,          /// (MetaArithmetic, float a, float b) -> float
+    FDiv,          /// (MetaArithmetic, float a, float b) -> float
+    FFma,          /// (MetaArithmetic, float a, float b, float c) -> float
+    FNegate,       /// (MetaArithmetic, float a) -> float
+    FAbsolute,     /// (MetaArithmetic, float a) -> float
+    FClamp,        /// (MetaArithmetic, float value, float min, float max) -> float
+    FMin,          /// (MetaArithmetic, float a, float b) -> float
+    FMax,          /// (MetaArithmetic, float a, float b) -> float
+    FCos,          /// (MetaArithmetic, float a) -> float
+    FSin,          /// (MetaArithmetic, float a) -> float
+    FExp2,         /// (MetaArithmetic, float a) -> float
+    FLog2,         /// (MetaArithmetic, float a) -> float
+    FInverseSqrt,  /// (MetaArithmetic, float a) -> float
+    FSqrt,         /// (MetaArithmetic, float a) -> float
+    FRoundEven,    /// (MetaArithmetic, float a) -> float
+    FFloor,        /// (MetaArithmetic, float a) -> float
+    FCeil,         /// (MetaArithmetic, float a) -> float
+    FTrunc,        /// (MetaArithmetic, float a) -> float
+    FCastInteger,  /// (MetaArithmetic, int a) -> float
+    FCastUInteger, /// (MetaArithmetic, uint a) -> float
+
+    IAdd,                  /// (MetaArithmetic, int a, int b) -> int
+    IMul,                  /// (MetaArithmetic, int a, int b) -> int
+    IDiv,                  /// (MetaArithmetic, int a, int b) -> int
+    INegate,               /// (MetaArithmetic, int a) -> int
+    IAbsolute,             /// (MetaArithmetic, int a) -> int
+    IMin,                  /// (MetaArithmetic, int a, int b) -> int
+    IMax,                  /// (MetaArithmetic, int a, int b) -> int
+    ICastFloat,            /// (MetaArithmetic, float a) -> int
+    ICastUnsigned,         /// (MetaArithmetic, uint a) -> int
+    ILogicalShiftLeft,     /// (MetaArithmetic, int a, uint b) -> int
+    ILogicalShiftRight,    /// (MetaArithmetic, int a, uint b) -> int
+    IArithmeticShiftRight, /// (MetaArithmetic, int a, uint b) -> int
+    IBitwiseAnd,           /// (MetaArithmetic, int a, int b) -> int
+    IBitwiseOr,            /// (MetaArithmetic, int a, int b) -> int
+    IBitwiseXor,           /// (MetaArithmetic, int a, int b) -> int
+    IBitwiseNot,           /// (MetaArithmetic, int a) -> int
+    IBitfieldInsert,       /// (MetaArithmetic, int base, int insert, int offset, int bits) -> int
+    IBitfieldExtract,      /// (MetaArithmetic, int value, int offset, int offset) -> int
+    IBitCount,             /// (MetaArithmetic, int) -> int
+
+    UAdd,                  /// (MetaArithmetic, uint a, uint b) -> uint
+    UMul,                  /// (MetaArithmetic, uint a, uint b) -> uint
+    UDiv,                  /// (MetaArithmetic, uint a, uint b) -> uint
+    UMin,                  /// (MetaArithmetic, uint a, uint b) -> uint
+    UMax,                  /// (MetaArithmetic, uint a, uint b) -> uint
+    UCastFloat,            /// (MetaArithmetic, float a) -> uint
+    UCastSigned,           /// (MetaArithmetic, int a) -> uint
+    ULogicalShiftLeft,     /// (MetaArithmetic, uint a, uint b) -> uint
+    ULogicalShiftRight,    /// (MetaArithmetic, uint a, uint b) -> uint
+    UArithmeticShiftRight, /// (MetaArithmetic, uint a, uint b) -> uint
+    UBitwiseAnd,           /// (MetaArithmetic, uint a, uint b) -> uint
+    UBitwiseOr,            /// (MetaArithmetic, uint a, uint b) -> uint
+    UBitwiseXor,           /// (MetaArithmetic, uint a, uint b) -> uint
+    UBitwiseNot,           /// (MetaArithmetic, uint a) -> uint
+    UBitfieldInsert,  /// (MetaArithmetic, uint base, uint insert, int offset, int bits) -> uint
+    UBitfieldExtract, /// (MetaArithmetic, uint value, int offset, int offset) -> uint
+    UBitCount,        /// (MetaArithmetic, uint) -> uint
+
+    HAdd,      /// (MetaHalfArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
+    HMul,      /// (MetaHalfArithmetic, f16vec2 a, f16vec2 b) -> f16vec2
+    HFma,      /// (MetaHalfArithmetic, f16vec2 a, f16vec2 b, f16vec2 c) -> f16vec2
+    HAbsolute, /// (f16vec2 a) -> f16vec2
+    HNegate,   /// (f16vec2 a, bool first, bool second) -> f16vec2
+    HMergeF32, /// (f16vec2 src) -> float
+    HMergeH0,  /// (f16vec2 dest, f16vec2 src) -> f16vec2
+    HMergeH1,  /// (f16vec2 dest, f16vec2 src) -> f16vec2
+    HPack2,    /// (float a, float b) -> f16vec2
+
+    LogicalAssign, /// (bool& dst, bool src) -> void
+    LogicalAnd,    /// (bool a, bool b) -> bool
+    LogicalOr,     /// (bool a, bool b) -> bool
+    LogicalXor,    /// (bool a, bool b) -> bool
+    LogicalNegate, /// (bool a) -> bool
+    LogicalPick2,  /// (bool2 pair, uint index) -> bool
+    LogicalAll2,   /// (bool2 a) -> bool
+    LogicalAny2,   /// (bool2 a) -> bool
+
+    LogicalFLessThan,     /// (float a, float b) -> bool
+    LogicalFEqual,        /// (float a, float b) -> bool
+    LogicalFLessEqual,    /// (float a, float b) -> bool
+    LogicalFGreaterThan,  /// (float a, float b) -> bool
+    LogicalFNotEqual,     /// (float a, float b) -> bool
+    LogicalFGreaterEqual, /// (float a, float b) -> bool
+    LogicalFIsNan,        /// (float a) -> bool
+
+    LogicalILessThan,     /// (int a, int b) -> bool
+    LogicalIEqual,        /// (int a, int b) -> bool
+    LogicalILessEqual,    /// (int a, int b) -> bool
+    LogicalIGreaterThan,  /// (int a, int b) -> bool
+    LogicalINotEqual,     /// (int a, int b) -> bool
+    LogicalIGreaterEqual, /// (int a, int b) -> bool
+
+    LogicalULessThan,     /// (uint a, uint b) -> bool
+    LogicalUEqual,        /// (uint a, uint b) -> bool
+    LogicalULessEqual,    /// (uint a, uint b) -> bool
+    LogicalUGreaterThan,  /// (uint a, uint b) -> bool
+    LogicalUNotEqual,     /// (uint a, uint b) -> bool
+    LogicalUGreaterEqual, /// (uint a, uint b) -> bool
+
+    Logical2HLessThan,     /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
+    Logical2HEqual,        /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
+    Logical2HLessEqual,    /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
+    Logical2HGreaterThan,  /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
+    Logical2HNotEqual,     /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
+    Logical2HGreaterEqual, /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
+
+    F4Texture,                /// (MetaTexture, float[N] coords, float[M] params) -> float4
+    F4TextureLod,             /// (MetaTexture, float[N] coords, float[M] params) -> float4
+    F4TextureGather,          /// (MetaTexture, float[N] coords, float[M] params) -> float4
+    F4TextureQueryDimensions, /// (MetaTexture, float a) -> float4
+    F4TextureQueryLod,        /// (MetaTexture, float[N] coords) -> float4
+    F4TexelFetch,             /// (MetaTexture, int[N], int) -> float4
+
+    Branch,        /// (uint branch_target) -> void
+    PushFlowStack, /// (uint branch_target) -> void
+    PopFlowStack,  /// () -> void
+    Exit,          /// () -> void
+    Discard,       /// () -> void
+
+    EmitVertex,   /// () -> void
+    EndPrimitive, /// () -> void
+
+    YNegate, /// () -> float
+
+    Amount,
+};
+
+enum class InternalFlag {
+    Zero = 0,
+    Sign = 1,
+    Carry = 2,
+    Overflow = 3,
+    Amount = 4,
+};
+
+/// Describes the behaviour of code path of a given entry point and a return point.
+enum class ExitMethod {
+    Undetermined, ///< Internal value. Only occur when analyzing JMP loop.
+    AlwaysReturn, ///< All code paths reach the return point.
+    Conditional,  ///< Code path reaches the return point or an END instruction conditionally.
+    AlwaysEnd,    ///< All code paths reach a END instruction.
+};
+
+class Sampler {
+public:
+    explicit Sampler(std::size_t offset, std::size_t index, Tegra::Shader::TextureType type,
+                     bool is_array, bool is_shadow)
+        : offset{offset}, index{index}, type{type}, is_array{is_array}, is_shadow{is_shadow} {}
+
+    std::size_t GetOffset() const {
+        return offset;
+    }
+
+    std::size_t GetIndex() const {
+        return index;
+    }
+
+    Tegra::Shader::TextureType GetType() const {
+        return type;
+    }
+
+    bool IsArray() const {
+        return is_array;
+    }
+
+    bool IsShadow() const {
+        return is_shadow;
+    }
+
+    bool operator<(const Sampler& rhs) const {
+        return std::tie(offset, index, type, is_array, is_shadow) <
+               std::tie(rhs.offset, rhs.index, rhs.type, rhs.is_array, rhs.is_shadow);
+    }
+
+private:
+    /// Offset in TSC memory from which to read the sampler object, as specified by the sampling
+    /// instruction.
+    std::size_t offset{};
+    std::size_t index{}; ///< Value used to index into the generated GLSL sampler array.
+    Tegra::Shader::TextureType type{}; ///< The type used to sample this texture (Texture2D, etc)
+    bool is_array{};  ///< Whether the texture is being sampled as an array texture or not.
+    bool is_shadow{}; ///< Whether the texture is being sampled as a depth texture or not.
+};
+
+class ConstBuffer {
+public:
+    void MarkAsUsed(u64 offset) {
+        max_offset = std::max(max_offset, static_cast<u32>(offset));
+    }
+
+    void MarkAsUsedIndirect() {
+        is_indirect = true;
+    }
+
+    bool IsIndirect() const {
+        return is_indirect;
+    }
+
+    u32 GetSize() const {
+        return max_offset + 1;
+    }
+
+private:
+    u32 max_offset{};
+    bool is_indirect{};
+};
+
+struct MetaArithmetic {
+    bool precise{};
+};
+
+struct MetaHalfArithmetic {
+    bool precise{};
+    std::array<Tegra::Shader::HalfType, 3> types = {Tegra::Shader::HalfType::H0_H1,
+                                                    Tegra::Shader::HalfType::H0_H1,
+                                                    Tegra::Shader::HalfType::H0_H1};
+};
+
+struct MetaTexture {
+    const Sampler& sampler;
+    u32 element{};
+    u32 coords_count{};
+    std::optional<u32> array_index;
+};
+
+constexpr MetaArithmetic PRECISE = {true};
+constexpr MetaArithmetic NO_PRECISE = {false};
+constexpr MetaHalfArithmetic HALF_NO_PRECISE = {false};
+
+using Meta = std::variant<MetaArithmetic, MetaHalfArithmetic, MetaTexture>;
+
+/// Holds any kind of operation that can be done in the IR
+class OperationNode final {
+public:
+    template <typename... T>
+    explicit constexpr OperationNode(OperationCode code) : code{code}, meta{} {}
+
+    template <typename... T>
+    explicit constexpr OperationNode(OperationCode code, Meta&& meta)
+        : code{code}, meta{std::move(meta)} {}
+
+    template <typename... T>
+    explicit constexpr OperationNode(OperationCode code, const T*... operands)
+        : OperationNode(code, {}, operands...) {}
+
+    template <typename... T>
+    explicit constexpr OperationNode(OperationCode code, Meta&& meta, const T*... operands_)
+        : code{code}, meta{std::move(meta)} {
+
+        auto operands_list = {operands_...};
+        for (auto& operand : operands_list) {
+            operands.push_back(operand);
+        }
+    }
+
+    explicit OperationNode(OperationCode code, Meta&& meta, std::vector<Node>&& operands)
+        : code{code}, meta{meta}, operands{std::move(operands)} {}
+
+    explicit OperationNode(OperationCode code, std::vector<Node>&& operands)
+        : code{code}, meta{}, operands{std::move(operands)} {}
+
+    OperationCode GetCode() const {
+        return code;
+    }
+
+    const Meta& GetMeta() const {
+        return meta;
+    }
+
+    std::size_t GetOperandsCount() const {
+        return operands.size();
+    }
+
+    Node operator[](std::size_t operand_index) const {
+        return operands.at(operand_index);
+    }
+
+private:
+    const OperationCode code;
+    const Meta meta;
+    std::vector<Node> operands;
+};
+
+/// Encloses inside any kind of node that returns a boolean conditionally-executed code
+class ConditionalNode final {
+public:
+    explicit ConditionalNode(Node condition, std::vector<Node>&& code)
+        : condition{condition}, code{std::move(code)} {}
+
+    Node GetCondition() const {
+        return condition;
+    }
+
+    const std::vector<Node>& GetCode() const {
+        return code;
+    }
+
+private:
+    const Node condition;   ///< Condition to be satisfied
+    std::vector<Node> code; ///< Code to execute
+};
+
+/// A general purpose register
+class GprNode final {
+public:
+    explicit constexpr GprNode(Tegra::Shader::Register index) : index{index} {}
+
+    u32 GetIndex() const {
+        return static_cast<u32>(index);
+    }
+
+private:
+    const Tegra::Shader::Register index;
+};
+
+/// A 32-bits value that represents an immediate value
+class ImmediateNode final {
+public:
+    explicit constexpr ImmediateNode(u32 value) : value{value} {}
+
+    u32 GetValue() const {
+        return value;
+    }
+
+private:
+    const u32 value;
+};
+
+/// One of Maxwell's internal flags
+class InternalFlagNode final {
+public:
+    explicit constexpr InternalFlagNode(InternalFlag flag) : flag{flag} {}
+
+    InternalFlag GetFlag() const {
+        return flag;
+    }
+
+private:
+    const InternalFlag flag;
+};
+
+/// A predicate register, it can be negated without aditional nodes
+class PredicateNode final {
+public:
+    explicit constexpr PredicateNode(Tegra::Shader::Pred index, bool negated)
+        : index{index}, negated{negated} {}
+
+    Tegra::Shader::Pred GetIndex() const {
+        return index;
+    }
+
+    bool IsNegated() const {
+        return negated;
+    }
+
+private:
+    const Tegra::Shader::Pred index;
+    const bool negated;
+};
+
+/// Attribute buffer memory (known as attributes or varyings in GLSL terms)
+class AbufNode final {
+public:
+    explicit constexpr AbufNode(Tegra::Shader::Attribute::Index index, u32 element,
+                                const Tegra::Shader::IpaMode& input_mode, Node buffer = {})
+        : input_mode{input_mode}, index{index}, element{element}, buffer{buffer} {}
+
+    explicit constexpr AbufNode(Tegra::Shader::Attribute::Index index, u32 element,
+                                Node buffer = {})
+        : input_mode{}, index{index}, element{element}, buffer{buffer} {}
+
+    Tegra::Shader::IpaMode GetInputMode() const {
+        return input_mode;
+    }
+
+    Tegra::Shader::Attribute::Index GetIndex() const {
+        return index;
+    }
+
+    u32 GetElement() const {
+        return element;
+    }
+
+    Node GetBuffer() const {
+        return buffer;
+    }
+
+private:
+    const Tegra::Shader::IpaMode input_mode;
+    const Node buffer;
+    const Tegra::Shader::Attribute::Index index;
+    const u32 element;
+};
+
+/// Constant buffer node, usually mapped to uniform buffers in GLSL
+class CbufNode final {
+public:
+    explicit constexpr CbufNode(u32 index, Node offset) : index{index}, offset{offset} {}
+
+    u32 GetIndex() const {
+        return index;
+    }
+
+    Node GetOffset() const {
+        return offset;
+    }
+
+private:
+    const u32 index;
+    const Node offset;
+};
+
+/// Local memory node
+class LmemNode final {
+public:
+    explicit constexpr LmemNode(Node address) : address{address} {}
+
+    Node GetAddress() const {
+        return address;
+    }
+
+private:
+    const Node address;
+};
+
+/// Global memory node
+class GmemNode final {
+public:
+    explicit constexpr GmemNode(Node address) : address{address} {}
+
+    Node GetAddress() const {
+        return address;
+    }
+
+private:
+    const Node address;
+};
+
+/// Commentary, can be dropped
+class CommentNode final {
+public:
+    explicit CommentNode(std::string text) : text{std::move(text)} {}
+
+    const std::string& GetText() const {
+        return text;
+    }
+
+private:
+    std::string text;
+};
+
+class ShaderIR final {
+public:
+    explicit ShaderIR(const ProgramCode& program_code, u32 main_offset)
+        : program_code{program_code}, main_offset{main_offset} {
+
+        Decode();
+    }
+
+    const std::map<u32, BasicBlock>& GetBasicBlocks() const {
+        return basic_blocks;
+    }
+
+    const std::set<u32>& GetRegisters() const {
+        return used_registers;
+    }
+
+    const std::set<Tegra::Shader::Pred>& GetPredicates() const {
+        return used_predicates;
+    }
+
+    const std::map<Tegra::Shader::Attribute::Index, std::set<Tegra::Shader::IpaMode>>&
+    GetInputAttributes() const {
+        return used_input_attributes;
+    }
+
+    const std::set<Tegra::Shader::Attribute::Index>& GetOutputAttributes() const {
+        return used_output_attributes;
+    }
+
+    const std::map<u32, ConstBuffer>& GetConstantBuffers() const {
+        return used_cbufs;
+    }
+
+    const std::set<Sampler>& GetSamplers() const {
+        return used_samplers;
+    }
+
+    const std::array<bool, Tegra::Engines::Maxwell3D::Regs::NumClipDistances>& GetClipDistances()
+        const {
+        return used_clip_distances;
+    }
+
+    std::size_t GetLength() const {
+        return static_cast<std::size_t>(coverage_end * sizeof(u64));
+    }
+
+    const Tegra::Shader::Header& GetHeader() const {
+        return header;
+    }
+
+private:
+    void Decode();
+
+    ExitMethod Scan(u32 begin, u32 end, std::set<u32>& labels);
+
+    BasicBlock DecodeRange(u32 begin, u32 end);
+
+    /**
+     * Decodes a single instruction from Tegra to IR.
+     * @param bb Basic block where the nodes will be written to.
+     * @param pc Program counter. Offset to decode.
+     * @return Next address to decode.
+     */
+    u32 DecodeInstr(BasicBlock& bb, u32 pc);
+
+    u32 DecodeArithmetic(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeArithmeticImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeBfe(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeBfi(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeShift(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeArithmeticInteger(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeArithmeticIntegerImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeArithmeticHalf(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeArithmeticHalfImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeFfma(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeHfma2(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeConversion(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeMemory(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeFloatSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeIntegerSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeHalfSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodePredicateSetRegister(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodePredicateSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeRegisterSetPredicate(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeFloatSet(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeIntegerSet(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeHalfSet(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeVideo(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeXmad(BasicBlock& bb, const BasicBlock& code, u32 pc);
+    u32 DecodeOther(BasicBlock& bb, const BasicBlock& code, u32 pc);
+
+    /// Internalizes node's data and returns a managed pointer to a clone of that node
+    Node StoreNode(NodeData&& node_data);
+
+    /// Creates a conditional node
+    Node Conditional(Node condition, std::vector<Node>&& code);
+    /// Creates a commentary
+    Node Comment(const std::string& text);
+    /// Creates an u32 immediate
+    Node Immediate(u32 value);
+    /// Creates a s32 immediate
+    Node Immediate(s32 value) {
+        return Immediate(static_cast<u32>(value));
+    }
+    /// Creates a f32 immediate
+    Node Immediate(f32 value) {
+        u32 integral;
+        std::memcpy(&integral, &value, sizeof(u32));
+        return Immediate(integral);
+    }
+
+    /// Generates a node for a passed register.
+    Node GetRegister(Tegra::Shader::Register reg);
+    /// Generates a node representing a 19-bit immediate value
+    Node GetImmediate19(Tegra::Shader::Instruction instr);
+    /// Generates a node representing a 32-bit immediate value
+    Node GetImmediate32(Tegra::Shader::Instruction instr);
+    /// Generates a node representing a constant buffer
+    Node GetConstBuffer(u64 index, u64 offset);
+    /// Generates a node representing a constant buffer with a variadic offset
+    Node GetConstBufferIndirect(u64 index, u64 offset, Node node);
+    /// Generates a node for a passed predicate. It can be optionally negated
+    Node GetPredicate(u64 pred, bool negated = false);
+    /// Generates a predicate node for an immediate true or false value
+    Node GetPredicate(bool immediate);
+    /// Generates a node representing an input atttribute. Keeps track of used attributes.
+    Node GetInputAttribute(Tegra::Shader::Attribute::Index index, u64 element,
+                           const Tegra::Shader::IpaMode& input_mode, Node buffer = {});
+    /// Generates a node representing an output atttribute. Keeps track of used attributes.
+    Node GetOutputAttribute(Tegra::Shader::Attribute::Index index, u64 element, Node buffer);
+    /// Generates a node representing an internal flag
+    Node GetInternalFlag(InternalFlag flag, bool negated = false);
+    /// Generates a node representing a local memory address
+    Node GetLocalMemory(Node address);
+    /// Generates a temporal, internally it uses a post-RZ register
+    Node GetTemporal(u32 id);
+
+    /// Sets a register. src value must be a number-evaluated node.
+    void SetRegister(BasicBlock& bb, Tegra::Shader::Register dest, Node src);
+    /// Sets a predicate. src value must be a bool-evaluated node
+    void SetPredicate(BasicBlock& bb, u64 dest, Node src);
+    /// Sets an internal flag. src value must be a bool-evaluated node
+    void SetInternalFlag(BasicBlock& bb, InternalFlag flag, Node value);
+    /// Sets a local memory address. address and value must be a number-evaluated node
+    void SetLocalMemory(BasicBlock& bb, Node address, Node value);
+    /// Sets a temporal. Internally it uses a post-RZ register
+    void SetTemporal(BasicBlock& bb, u32 id, Node value);
+
+    /// Sets internal flags from a float
+    void SetInternalFlagsFromFloat(BasicBlock& bb, Node value, bool sets_cc = true);
+    /// Sets internal flags from an integer
+    void SetInternalFlagsFromInteger(BasicBlock& bb, Node value, bool sets_cc = true);
+
+    /// Conditionally absolute/negated float. Absolute is applied first
+    Node GetOperandAbsNegFloat(Node value, bool absolute, bool negate);
+    /// Conditionally saturates a float
+    Node GetSaturatedFloat(Node value, bool saturate = true);
+
+    /// Converts an integer to different sizes.
+    Node ConvertIntegerSize(Node value, Tegra::Shader::Register::Size size, bool is_signed);
+    /// Conditionally absolute/negated integer. Absolute is applied first
+    Node GetOperandAbsNegInteger(Node value, bool absolute, bool negate, bool is_signed);
+
+    /// Unpacks a half immediate from an instruction
+    Node UnpackHalfImmediate(Tegra::Shader::Instruction instr, bool has_negation);
+    /// Merges a half pair into another value
+    Node HalfMerge(Node dest, Node src, Tegra::Shader::HalfMerge merge);
+    /// Conditionally absolute/negated half float pair. Absolute is applied first
+    Node GetOperandAbsNegHalf(Node value, bool absolute, bool negate);
+
+    /// Returns a predicate comparing two floats
+    Node GetPredicateComparisonFloat(Tegra::Shader::PredCondition condition, Node op_a, Node op_b);
+    /// Returns a predicate comparing two integers
+    Node GetPredicateComparisonInteger(Tegra::Shader::PredCondition condition, bool is_signed,
+                                       Node op_a, Node op_b);
+    /// Returns a predicate comparing two half floats. meta consumes how both pairs will be compared
+    Node GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition,
+                                    const MetaHalfArithmetic& meta, Node op_a, Node op_b);
+
+    /// Returns a predicate combiner operation
+    OperationCode GetPredicateCombiner(Tegra::Shader::PredOperation operation);
+
+    /// Returns a condition code evaluated from internal flags
+    Node GetConditionCode(Tegra::Shader::ConditionCode cc);
+
+    /// Accesses a texture sampler
+    const Sampler& GetSampler(const Tegra::Shader::Sampler& sampler,
+                              Tegra::Shader::TextureType type, bool is_array, bool is_shadow);
+
+    /// Extracts a sequence of bits from a node
+    Node BitfieldExtract(Node value, u32 offset, u32 bits);
+
+    void WriteTexInstructionFloat(BasicBlock& bb, Tegra::Shader::Instruction instr,
+                                  const Node4& components);
+
+    void WriteTexsInstructionFloat(BasicBlock& bb, Tegra::Shader::Instruction instr,
+                                   const Node4& components);
+    void WriteTexsInstructionHalfFloat(BasicBlock& bb, Tegra::Shader::Instruction instr,
+                                       const Node4& components);
+
+    Node4 GetTexCode(Tegra::Shader::Instruction instr, Tegra::Shader::TextureType texture_type,
+                     Tegra::Shader::TextureProcessMode process_mode, bool depth_compare,
+                     bool is_array);
+
+    Node4 GetTexsCode(Tegra::Shader::Instruction instr, Tegra::Shader::TextureType texture_type,
+                      Tegra::Shader::TextureProcessMode process_mode, bool depth_compare,
+                      bool is_array);
+
+    Node4 GetTld4Code(Tegra::Shader::Instruction instr, Tegra::Shader::TextureType texture_type,
+                      bool depth_compare, bool is_array);
+
+    Node4 GetTldsCode(Tegra::Shader::Instruction instr, Tegra::Shader::TextureType texture_type,
+                      bool is_array);
+
+    std::tuple<std::size_t, std::size_t> ValidateAndGetCoordinateElement(
+        Tegra::Shader::TextureType texture_type, bool depth_compare, bool is_array,
+        bool lod_bias_enabled, std::size_t max_coords, std::size_t max_inputs);
+
+    Node4 GetTextureCode(Tegra::Shader::Instruction instr, Tegra::Shader::TextureType texture_type,
+                         Tegra::Shader::TextureProcessMode process_mode, bool depth_compare,
+                         bool is_array, std::size_t array_offset, std::size_t bias_offset,
+                         std::vector<Node>&& coords);
+
+    Node GetVideoOperand(Node op, bool is_chunk, bool is_signed, Tegra::Shader::VideoType type,
+                         u64 byte_height);
+
+    void WriteLogicOperation(BasicBlock& bb, Tegra::Shader::Register dest,
+                             Tegra::Shader::LogicOperation logic_op, Node op_a, Node op_b,
+                             Tegra::Shader::PredicateResultMode predicate_mode,
+                             Tegra::Shader::Pred predicate, bool sets_cc);
+    void WriteLop3Instruction(BasicBlock& bb, Tegra::Shader::Register dest, Node op_a, Node op_b,
+                              Node op_c, Node imm_lut, bool sets_cc);
+
+    template <typename... T>
+    Node Operation(OperationCode code, const T*... operands) {
+        return StoreNode(OperationNode(code, operands...));
+    }
+
+    template <typename... T>
+    Node Operation(OperationCode code, Meta&& meta, const T*... operands) {
+        return StoreNode(OperationNode(code, std::move(meta), operands...));
+    }
+
+    template <typename... T>
+    Node Operation(OperationCode code, std::vector<Node>&& operands) {
+        return StoreNode(OperationNode(code, std::move(operands)));
+    }
+
+    template <typename... T>
+    Node Operation(OperationCode code, Meta&& meta, std::vector<Node>&& operands) {
+        return StoreNode(OperationNode(code, std::move(meta), std::move(operands)));
+    }
+
+    template <typename... T>
+    Node SignedOperation(OperationCode code, bool is_signed, const T*... operands) {
+        return StoreNode(OperationNode(SignedToUnsignedCode(code, is_signed), operands...));
+    }
+
+    template <typename... T>
+    Node SignedOperation(OperationCode code, bool is_signed, Meta&& meta, const T*... operands) {
+        return StoreNode(
+            OperationNode(SignedToUnsignedCode(code, is_signed), std::move(meta), operands...));
+    }
+
+    static OperationCode SignedToUnsignedCode(OperationCode operation_code, bool is_signed);
+
+    const ProgramCode& program_code;
+    const u32 main_offset;
+
+    u32 coverage_begin{};
+    u32 coverage_end{};
+    std::map<std::pair<u32, u32>, ExitMethod> exit_method_map;
+
+    std::map<u32, BasicBlock> basic_blocks;
+
+    std::vector<std::unique_ptr<NodeData>> stored_nodes;
+
+    std::set<u32> used_registers;
+    std::set<Tegra::Shader::Pred> used_predicates;
+    std::map<Tegra::Shader::Attribute::Index, std::set<Tegra::Shader::IpaMode>>
+        used_input_attributes;
+    std::set<Tegra::Shader::Attribute::Index> used_output_attributes;
+    std::map<u32, ConstBuffer> used_cbufs;
+    std::set<Sampler> used_samplers;
+    std::array<bool, Tegra::Engines::Maxwell3D::Regs::NumClipDistances> used_clip_distances{};
+
+    Tegra::Shader::Header header;
+};
+
+} // namespace VideoCommon::Shader