Revert "Import experimental NS2 support and accumulated GPU fixes"

This reverts commit 535b676970. The Switch 2 support comes from the nx2
work instead, merged next.

5 files changed, 0 insertions, 3176 deletions

diff --git a/src/tests/video_core/image_overlap.cpp b/src/tests/video_core/image_overlap.cpp
deleted file mode 100644
index a4a08c72ea..0000000000
--- a/src/tests/video_core/image_overlap.cpp
+++ /dev/null
@@ -1,93 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <catch2/catch_test_macros.hpp>
-#include <catch2/generators/catch_generators.hpp>
-#include "video_core/texture_cache/image_base.h"
-#include "video_core/texture_cache/image_info.h"
-#include "video_core/texture_cache/image_view_info.h"
-#include "video_core/texture_cache/util.h"
-
-namespace {
-VideoCommon::ImageInfo ArrayInfo(bool native) {
-    VideoCommon::ImageInfo info;
-    info.type = VideoCommon::ImageType::e2D;
-    info.format = VideoCore::Surface::PixelFormat::A8B8G8R8_UNORM;
-    info.size = {64, 64, 1};
-    info.native_tiling = native;
-    info.layer_stride = VideoCommon::CalculateLayerStride(info);
-    info.maybe_unaligned_layer_stride = info.layer_stride;
-    return info;
-}
-}
-
-TEST_CASE("Repeated views inside an existing array do not grow its storage", "[texture-overlap]") {
-    const auto single = ArrayInfo(GENERATE(false, true));
-    auto storage = single;
-    storage.resources.layers = 3;
-    constexpr GPUVAddr gpu = 0x100000;
-    constexpr VAddr cpu = 0x200000;
-    for (u32 frame = 0; frame < 100; ++frame) {
-        const VideoCommon::ImageBase existing{storage, gpu, cpu};
-        const u32 offset = (1 + frame % 2) * single.layer_stride;
-        const auto joined = VideoCommon::ResolveOverlap(single, gpu + offset, cpu + offset,
-                                                        existing, true, false, true);
-        REQUIRE(joined);
-        REQUIRE(joined->gpu_addr == gpu);
-        REQUIRE(joined->cpu_addr == cpu);
-        REQUIRE(joined->resources.layers == 3);
-        storage.resources = joined->resources;
-        REQUIRE(VideoCommon::CalculateUnswizzledSizeBytes(storage) == 64 * 64 * 4 * 3);
-    }
-}
-
-TEST_CASE("Array overlap extends only to the end of the new view", "[texture-overlap]") {
-    auto storage = ArrayInfo(GENERATE(false, true));
-    storage.resources.layers = 3;
-    auto view = storage;
-    view.resources.layers = 4;
-    constexpr GPUVAddr gpu = 0x100000;
-    constexpr VAddr cpu = 0x200000;
-    const VideoCommon::ImageBase existing{storage, gpu, cpu};
-    const u32 offset = 2 * storage.layer_stride;
-    const auto joined = VideoCommon::ResolveOverlap(view, gpu + offset, cpu + offset,
-                                                    existing, true, false, true);
-    REQUIRE(joined);
-    REQUIRE(joined->resources.layers == 6);
-}
-
-TEST_CASE("Native texture views retain their direct address without a legacy array prefix", "[texture-overlap]") {
-    Tegra::Texture::TICEntry raw{};
-    raw.format.Assign(Tegra::Texture::TextureFormat::A8B8G8R8);
-    raw.r_type.Assign(Tegra::Texture::ComponentType::UNORM);
-    raw.g_type.Assign(Tegra::Texture::ComponentType::UNORM);
-    raw.b_type.Assign(Tegra::Texture::ComponentType::UNORM);
-    raw.a_type.Assign(Tegra::Texture::ComponentType::UNORM);
-    raw.header_version.Assign(Tegra::Texture::TICHeaderVersion::BlockLinear);
-    raw.block_height.Assign(4);
-    raw.width_minus_one.Assign(1919);
-    raw.height_minus_1.Assign(1079);
-    const bool array = GENERATE(false, true);
-    raw.texture_type.Assign(array ? Tegra::Texture::TextureType::Texture2DArray : Tegra::Texture::TextureType::Texture2D);
-    raw.depth_minus_1.Assign(array ? 2 : 0);
-    raw.normalized_coords.Assign(1);
-    raw.address_high.Assign(0x81);
-    raw.address_low = 0x870000;
-    raw.layer_base_0_2.Assign(1);
-    raw.layer_base_3_7.Assign(4);
-    REQUIRE(raw.BaseLayer() == 33);
-    REQUIRE(VideoCommon::TextureViewHeader(raw, false) == raw);
-    const auto native = VideoCommon::TextureViewHeader(raw, true);
-    REQUIRE(native.BaseLayer() == 0);
-    REQUIRE(native.Address() == raw.Address());
-    const VideoCommon::ImageInfo info(native);
-    REQUIRE(info.size.width == 1920);
-    REQUIRE(info.size.height == 1080);
-    REQUIRE(info.resources.layers == (array ? 3 : 1));
-    REQUIRE(VideoCommon::CalculateUnswizzledSizeBytes(info) == size_t{1920} * 1080 * 4 * (array ? 3U : 1U));
-    const VideoCommon::ImageViewInfo view(native, 0);
-    REQUIRE(view.range.base.layer == 0);
-    REQUIRE(view.type == (array ? VideoCommon::ImageViewType::e2DArray : VideoCommon::ImageViewType::e2D));
-    REQUIRE(view.range.extent.layers == (array ? 3 : 1));
-    REQUIRE(VideoCommon::ImageInfo(raw).resources.layers == (array ? 36 : 34));
-}
diff --git a/src/tests/video_core/native_semaphore.cpp b/src/tests/video_core/native_semaphore.cpp
deleted file mode 100644
index 8dcafd91bc..0000000000
--- a/src/tests/video_core/native_semaphore.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <array>
-#include <optional>
-#include <vector>
-#include <catch2/catch_test_macros.hpp>
-#include "common/common_types.h"
-#include "video_core/native_semaphore.h"
-
-TEST_CASE("Native semaphore predicates require the actual producer value", "[native-gpu]") {
-    const Tegra::NativeSemaphoreWait equal{0x1000, 840, 1};
-    REQUIRE_FALSE(equal.Matches(0));
-    REQUIRE_FALSE(equal.Matches(839));
-    REQUIRE(equal.Matches(840));
-    REQUIRE_FALSE(equal.Matches(841));
-    const Tegra::NativeSemaphoreWait gequal{0x1000, 840, 4};
-    REQUIRE_FALSE(gequal.Matches(0));
-    REQUIRE_FALSE(gequal.Matches(839));
-    REQUIRE(gequal.Matches(840));
-    REQUIRE(gequal.Matches(841));
-    const Tegra::NativeSemaphoreWait mask{0x1000, 0x24, 8};
-    REQUIRE_FALSE(mask.Matches(0));
-    REQUIRE_FALSE(mask.Matches(0x10));
-    REQUIRE(mask.Matches(4));
-    REQUIRE(mask.Matches(0x20));
-    REQUIRE_FALSE(Tegra::NativeSemaphoreWait::Supported(0));
-    REQUIRE_FALSE(Tegra::NativeSemaphoreWait::Supported(2));
-    REQUIRE_FALSE(Tegra::NativeSemaphoreWait{0x1000, 0, 2}.Matches(0));
-}
-
-TEST_CASE("Native channels resume in dependency order without completing blocked work", "[native-gpu]") {
-    const std::array<size_t, 3> channels{0, 1, 2};
-    std::array<std::optional<Tegra::NativeSemaphoreWait>, 3> waits{
-        Tegra::NativeSemaphoreWait{0x1000, 1, 4},
-        Tegra::NativeSemaphoreWait{0x2000, 1, 1},
-        Tegra::NativeSemaphoreWait{0x3000, 1, 4},
-    };
-    std::array<u32, 3> words{};
-    std::array<u32, 3> following_commands{};
-    std::vector<size_t> order;
-    const auto ready = [&](size_t channel) {
-        return waits[channel] && waits[channel]->Matches(words[channel]);
-    };
-    const auto dispatch = [&](size_t channel) {
-        REQUIRE(ready(channel));
-        waits[channel].reset();
-        ++following_commands[channel];
-        order.push_back(channel);
-        if (channel) words[channel - 1] = 1;
-    };
-    REQUIRE(Tegra::ResumeReadyNativeChannels(channels, ready, dispatch) == 0);
-    REQUIRE(order.empty());
-    REQUIRE(following_commands == std::array<u32, 3>{0, 0, 0});
-    // A real independent producer releases the last channel. Its remaining
-    // FIFO commands release the next channel, then the original consumer.
-    words[2] = 1;
-    REQUIRE(Tegra::ResumeReadyNativeChannels(channels, ready, dispatch) == 3);
-    REQUIRE(order == std::vector<size_t>{2, 1, 0});
-    REQUIRE(following_commands == std::array<u32, 3>{1, 1, 1});
-    REQUIRE(Tegra::ResumeReadyNativeChannels(channels, ready, dispatch) == 0);
-    REQUIRE(following_commands == std::array<u32, 3>{1, 1, 1});
-}
diff --git a/src/tests/video_core/native_shader.cpp b/src/tests/video_core/native_shader.cpp
deleted file mode 100644
index 76424b7dbf..0000000000
--- a/src/tests/video_core/native_shader.cpp
+++ /dev/null
@@ -1,2841 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <bit>
-#include <algorithm>
-#include <cmath>
-#include <cstdlib>
-#include <cstring>
-#include <filesystem>
-#include <fstream>
-#include <limits>
-#include <unordered_map>
-#include <catch2/catch_test_macros.hpp>
-#include <catch2/generators/catch_generators.hpp>
-#include "video_core/texture_cache/format_lookup_table.h"
-#include "shader_recompiler/environment.h"
-#include "shader_recompiler/frontend/ampere/lower_to_maxwell.h"
-#include "shader_recompiler/frontend/ampere/program_override.h"
-#include "shader_recompiler/frontend/ampere/program_capture.h"
-#include "shader_recompiler/frontend/ampere/program_address_map.h"
-#include "shader_recompiler/frontend/ir/basic_block.h"
-#include "shader_recompiler/frontend/ir/modifiers.h"
-#include "shader_recompiler/frontend/maxwell/decode.h"
-#include "shader_recompiler/frontend/maxwell/instruction.h"
-#include "shader_recompiler/frontend/maxwell/translate_program.h"
-#include "shader_recompiler/host_translate_info.h"
-#include "shader_recompiler/ir_opt/passes.h"
-#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
-
-namespace {
-namespace IR = Shader::IR;
-using Native = Shader::Ampere::Instruction;
-
-class EmptyEnvironment : public Shader::Environment {
-public:
-    u64 ReadInstruction(u32) override { throw std::logic_error("unexpected instruction read"); }
-    u32 ReadCbufValue(u32, u32) override { throw std::logic_error("unexpected constant folding"); }
-    Shader::TextureType ReadTextureType(u32) override { return {}; }
-    Shader::TexturePixelFormat ReadTexturePixelFormat(u32) override { return {}; }
-    bool IsTexturePixelFormatInteger(u32) override { return false; }
-    u32 ReadViewportTransformState() override { return 1; }
-    u32 TextureBoundBuffer() const override { return 0; }
-    u32 LocalMemorySize() const override { return 0; }
-    u32 SharedMemorySize() const override { return 0; }
-    std::array<u32, 3> WorkgroupSize() const override { return {}; }
-    bool HasHLEMacroState() const override { return false; }
-    std::optional<Shader::ReplaceConstant> GetReplaceConstBuffer(u32, u32) override { return {}; }
-    void Dump(u64, u64) override {}
-};
-
-constexpr std::array<Native, 7> VertexTransform{{
-    {{0xff007321, 0x000080ff, 0x00000400, 0x000e2200}}, // load two input components
-    {{0x00037a02, 0x00c00000, 0x00000f00, 0x000fe400}}, // scale X
-    {{0x00027a02, 0x00c00100, 0x00000f00, 0x000fe200}}, // scale Y
-    {{0x00007623, 0x00c00200, 0x00010003, 0x001fe200}}, // X * scale X + offset X
-    {{0x01017623, 0x00c00300, 0x00010002, 0x000fc400}}, // Y * scale Y + offset Y
-    {{0xff007322, 0x00007000, 0x000004ff, 0x000fe200}}, // store position X/Y
-    {{0x0000794d, 0x00000000, 0x03800000, 0x000fea00}},
-}};
-
-// Evaluate the existing frontend's emitted IR, independently of native bit
-// decoding, to check actual attribute/constant/register data flow.
-std::array<float, 2> EvaluateVertex(IR::Block& block, std::array<float, 2> input,
-                                  std::array<float, 4> constants, s32 vertex_id = 0) {
-    std::unordered_map<const IR::Inst*, u32> values;
-    std::unordered_map<const IR::Inst*, std::array<u32, 2>> pairs;
-    std::array<u32, 256> regs{};
-    std::array<float, 2> output{};
-    const auto get = [&](const IR::Value& value) {
-        if (!value.IsImmediate()) return values.at(value.Inst());
-        if (value.Type() == IR::Type::U1) return static_cast<u32>(value.U1());
-        return value.Type() == IR::Type::F32 ? std::bit_cast<u32>(value.F32()) : value.U32();
-    };
-    for (const auto& inst : block.Instructions()) {
-        const auto arg = [&](size_t i) { return get(inst.Arg(i)); };
-        switch (inst.GetOpcode()) {
-        case IR::Opcode::GetRegister:
-            values[&inst] = regs[static_cast<u32>(inst.Arg(0).Reg())];
-            break;
-        case IR::Opcode::SetRegister:
-            if (inst.Arg(0).Reg() != IR::Reg::RZ) regs[static_cast<u32>(inst.Arg(0).Reg())] = arg(1);
-            break;
-        case IR::Opcode::GetAttributeU32:
-            REQUIRE(static_cast<u32>(inst.Arg(0).Attribute()) == 0x2fc / 4);
-            values[&inst] = static_cast<u32>(vertex_id);
-            break;
-        case IR::Opcode::ShiftLeftLogical32:
-            values[&inst] = arg(0) << arg(1);
-            break;
-        case IR::Opcode::ShiftRightArithmetic32:
-            values[&inst] = static_cast<u32>(static_cast<s32>(arg(0)) >> arg(1));
-            break;
-        case IR::Opcode::SLessThan:
-            values[&inst] = static_cast<s32>(arg(0)) < static_cast<s32>(arg(1));
-            break;
-        case IR::Opcode::ULessThan:
-            values[&inst] = arg(0) < arg(1);
-            break;
-        case IR::Opcode::SelectU32:
-            values[&inst] = arg(0) ? arg(1) : arg(2);
-            break;
-        case IR::Opcode::SMin32:
-            values[&inst] = static_cast<u32>(std::min(static_cast<s32>(arg(0)), static_cast<s32>(arg(1))));
-            break;
-        case IR::Opcode::SMax32:
-            values[&inst] = static_cast<u32>(std::max(static_cast<s32>(arg(0)), static_cast<s32>(arg(1))));
-            break;
-        case IR::Opcode::INeg32:
-            values[&inst] = 0U - arg(0);
-            break;
-        case IR::Opcode::IAdd32:
-            values[&inst] = arg(0) + arg(1);
-            break;
-        case IR::Opcode::ConvertF32S32:
-            values[&inst] = std::bit_cast<u32>(static_cast<float>(static_cast<s32>(arg(0))));
-            break;
-        case IR::Opcode::GetAttribute: {
-            const auto attr = static_cast<u32>(inst.Arg(0).Attribute());
-            if (attr == 0x2fc / 4) {
-                values[&inst] = static_cast<u32>(vertex_id);
-                break;
-            }
-            REQUIRE(attr >= 0x80 / 4);
-            REQUIRE(attr < 0x88 / 4);
-            values[&inst] = std::bit_cast<u32>(input[attr - 0x80 / 4]);
-            break;
-        }
-        case IR::Opcode::GetCbufU32x2:
-            REQUIRE(arg(0) == 3);
-            REQUIRE(arg(1) % 4 == 0);
-            REQUIRE(arg(1) + 8 <= sizeof(constants));
-            pairs[&inst] = {std::bit_cast<u32>(constants[arg(1) / 4]), std::bit_cast<u32>(constants[arg(1) / 4 + 1])};
-            break;
-        case IR::Opcode::CompositeExtractU32x2:
-            values[&inst] = pairs.at(inst.Arg(0).Inst()).at(arg(1));
-            break;
-        case IR::Opcode::GetCbufF32:
-        case IR::Opcode::GetCbufU32:
-            REQUIRE(arg(0) == 3);
-            REQUIRE(arg(1) < 16);
-            values[&inst] = std::bit_cast<u32>(constants[arg(1) / 4]);
-            break;
-        case IR::Opcode::BitCastF32U32:
-        case IR::Opcode::BitCastU32F32:
-            values[&inst] = arg(0);
-            break;
-        case IR::Opcode::LogicalAnd:
-            values[&inst] = arg(0) && arg(1);
-            break;
-        case IR::Opcode::LogicalOr:
-            values[&inst] = arg(0) || arg(1);
-            break;
-        case IR::Opcode::LogicalNot:
-            values[&inst] = !arg(0);
-            break;
-        case IR::Opcode::FPIsNan32:
-            values[&inst] = std::isnan(std::bit_cast<float>(arg(0)));
-            break;
-        case IR::Opcode::FPOrdGreaterThanEqual32:
-            values[&inst] = std::bit_cast<float>(arg(0)) >= std::bit_cast<float>(arg(1));
-            break;
-        case IR::Opcode::FPRoundEven32:
-            values[&inst] = std::bit_cast<u32>(std::nearbyint(std::bit_cast<float>(arg(0))));
-            break;
-        case IR::Opcode::FPFloor32:
-            values[&inst] = std::bit_cast<u32>(std::floor(std::bit_cast<float>(arg(0))));
-            break;
-        case IR::Opcode::FPTrunc32:
-            values[&inst] = std::bit_cast<u32>(std::trunc(std::bit_cast<float>(arg(0))));
-            break;
-        case IR::Opcode::FPClamp32:
-            values[&inst] = std::bit_cast<u32>(std::clamp(std::bit_cast<float>(arg(0)),
-                std::bit_cast<float>(arg(1)), std::bit_cast<float>(arg(2))));
-            break;
-        case IR::Opcode::ConvertU32F32:
-            values[&inst] = static_cast<u32>(std::bit_cast<float>(arg(0)));
-            break;
-        case IR::Opcode::ConvertF32U32:
-            values[&inst] = std::bit_cast<u32>(static_cast<float>(arg(0)));
-            break;
-        case IR::Opcode::BitFieldUExtract:
-            values[&inst] = (arg(0) >> arg(1)) & ((1U << arg(2)) - 1);
-            break;
-        case IR::Opcode::BitwiseOr32:
-            values[&inst] = arg(0) | arg(1);
-            break;
-        case IR::Opcode::FPOrdLessThan32:
-            values[&inst] = std::bit_cast<float>(arg(0)) < std::bit_cast<float>(arg(1));
-            break;
-        case IR::Opcode::BitwiseXor32:
-            values[&inst] = arg(0) ^ arg(1);
-            break;
-        case IR::Opcode::BitwiseNot32:
-            values[&inst] = ~arg(0);
-            break;
-        case IR::Opcode::BitwiseAnd32:
-            values[&inst] = arg(0) & arg(1);
-            break;
-        case IR::Opcode::FPAdd32:
-            values[&inst] = std::bit_cast<u32>(std::bit_cast<float>(arg(0)) + std::bit_cast<float>(arg(1)));
-            break;
-        case IR::Opcode::FPMul32:
-            values[&inst] = std::bit_cast<u32>(std::bit_cast<float>(arg(0)) * std::bit_cast<float>(arg(1)));
-            break;
-        case IR::Opcode::FPMin32:
-            values[&inst] = std::bit_cast<u32>(std::fmin(std::bit_cast<float>(arg(0)), std::bit_cast<float>(arg(1))));
-            break;
-        case IR::Opcode::FPMax32:
-            values[&inst] = std::bit_cast<u32>(std::fmax(std::bit_cast<float>(arg(0)), std::bit_cast<float>(arg(1))));
-            break;
-        case IR::Opcode::SelectF32:
-            values[&inst] = arg(0) ? arg(1) : arg(2);
-            break;
-        case IR::Opcode::FPFma32: {
-            const auto control = inst.Flags<IR::FpControl>();
-            REQUIRE(control.fmz_mode == IR::FmzMode::FTZ);
-            REQUIRE(control.rounding == IR::FpRounding::RN);
-            values[&inst] = std::bit_cast<u32>(std::fma(std::bit_cast<float>(arg(0)),
-                std::bit_cast<float>(arg(1)), std::bit_cast<float>(arg(2))));
-            break;
-        }
-        case IR::Opcode::SetAttribute: {
-            const auto attr = static_cast<u32>(inst.Arg(0).Attribute());
-            REQUIRE(attr >= 0x70 / 4);
-            REQUIRE(attr < 0x78 / 4);
-            output[attr - 0x70 / 4] = std::bit_cast<float>(arg(1));
-            break;
-        }
-        default:
-            FAIL("Unexpected IR operation " << IR::NameOf(inst.GetOpcode()));
-        }
-    }
-    return output;
-}
-} // namespace
-
-TEST_CASE("Native vertex lowering preserves attribute transforms through existing shader IR", "[native-shader]") {
-    const auto lowered = Shader::Ampere::LowerToMaxwell(VertexTransform);
-    REQUIRE(lowered);
-    REQUIRE(lowered.source_size == VertexTransform.size() * 16);
-    REQUIRE(lowered.instructions.size() >= VertexTransform.size());
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const u64 word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::ALD: visitor.ALD(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::FFMA_rc: visitor.FFMA_rc(word); break;
-        case Opcode::FFMA_reg: visitor.FFMA_reg(word); break;
-        case Opcode::MOV_reg: visitor.MOV_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected lowered vertex instruction");
-        }
-    }
-    REQUIRE(EvaluateVertex(block, {2, 4}, {3, 7, 5, 11}) == std::array<float, 2>{11, 39});
-    REQUIRE(EvaluateVertex(block, {-4, 0.5f}, {-2, 4, 1, -3}) == std::array<float, 2>{9, -1});
-}
-
-TEST_CASE("Native lowering rejects unsupported forms without a partial executable", "[native-shader]") {
-    auto code = VertexTransform;
-    code[3].words[2] |= 1U << 12; // DNZ has no accepted lowering yet.
-    auto result = Shader::Ampere::LowerToMaxwell(code);
-    REQUIRE_FALSE(result);
-    REQUIRE(result.error_offset == 3 * 16);
-    REQUIRE(result.instructions.empty());
-    code = VertexTransform;
-    code[1].words[2] &= ~(15U << 8); // Partial quad-lane mask.
-    result = Shader::Ampere::LowerToMaxwell(code);
-    REQUIRE_FALSE(result);
-    REQUIRE(result.instructions.empty());
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell({}));
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(std::span{VertexTransform}.first(6)));
-}
-
-TEST_CASE("Native instruction predicates survive lowering", "[native-shader]") {
-    auto code = VertexTransform;
-    code[3].words[0] = (code[3].words[0] & ~0xf000U) | 0x9000U;
-    const auto result = Shader::Ampere::LowerToMaxwell(code);
-    REQUIRE(result);
-    const auto pred = Shader::Maxwell::Instruction{result.instructions[result.source_instruction_offsets[3]]}.Pred();
-    REQUIRE(pred.index == 1);
-    REQUIRE(pred.negated);
-}
-
-// These private input fixtures are read from the investigation directory, not
-// embedded or distributed with the emulator's source tree.
-TEST_CASE("Captured native shader pair compiles through existing control flow and shader IR", "[.native-shader-captured]") {
-    const char* directory = std::getenv("EDEN_NATIVE_SHADER_FIXTURES");
-    REQUIRE(directory != nullptr);
-    class FixtureEnvironment final : public EmptyEnvironment {
-    public:
-        FixtureEnvironment(const std::vector<u64>& code_, std::span<const u8> header, Shader::Stage stage_)
-            : code{code_} {
-            std::memcpy(&sph, header.data(), sizeof(sph));
-            stage = stage_;
-            start_address = 0;
-            is_proprietary_driver = true;
-        }
-        u64 ReadInstruction(u32 address) override { return code.at(address / 8); }
-        u32 TranslateProgramAddress(u32 address) const override {
-            const auto translated = Shader::Ampere::NativeProgramAddress(code, address);
-            if (!translated) throw std::logic_error("invalid private native branch target " + std::to_string(address));
-            return *translated;
-        }
-        u32 LocalMemorySize() const override { return static_cast<u32>(sph.LocalMemorySize()) + sph.common3.shader_local_memory_crs_size; }
-        u32 TextureBoundBuffer() const override { return 2; }
-        u32 ReadCbufValue(u32 bank, u32 offset) override {
-            if (bank == 1) {
-                REQUIRE(offset % 4 == 0);
-                return cbuf1.at(offset / 4);
-            }
-            REQUIRE(bank == 2);
-            return 0; // Synthetic texture handle; only compilation is tested here.
-        }
-        Shader::TextureType ReadTextureType(u32) override { return Shader::TextureType::Color2D; }
-        const std::vector<u64>& code;
-        std::vector<u32> cbuf1;
-    };
-    for (const int stage : {1, 5}) {
-        const auto path = std::filesystem::path{directory} / ("native-graphics-shader-" + std::to_string(stage) + ".bin");
-        std::ifstream file(path, std::ios::binary | std::ios::ate);
-        REQUIRE(file.good());
-        const auto size = static_cast<size_t>(file.tellg());
-        REQUIRE(size >= 0x90);
-        std::vector<u8> bytes(size);
-        file.seekg(0);
-        file.read(reinterpret_cast<char*>(bytes.data()), bytes.size());
-        std::vector<Native> input((size - 0x80) / 16);
-        std::memcpy(input.data(), bytes.data() + 0x80, input.size() * 16);
-        const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-        INFO("stage=" << stage << " offset=" << lowered.error_offset << " error=" << lowered.error);
-        REQUIRE(lowered);
-        Shader::Ampere::ProgramCaptureState capture;
-        u32 captured_size{};
-        for (u32 i = 0; i < input.size(); ++i) {
-            const auto status = capture.Observe(input[i], i);
-            REQUIRE(status != Shader::Ampere::ProgramCaptureState::Result::InvalidTarget);
-            if (status == Shader::Ampere::ProgramCaptureState::Result::Complete) {
-                captured_size = (i + 1) * sizeof(Native);
-                break;
-            }
-        }
-        REQUIRE(captured_size == lowered.source_size);
-        std::vector<u64> code(0x50 / 8);
-        for (const u64 word : lowered.instructions) {
-            if ((code.size() * 8) % 32 == 0) code.push_back(0);
-            code.push_back(word);
-        }
-        code.push_back(0);
-        Shader::Ampere::AppendNativeAddressMap(code, lowered.source_instruction_offsets);
-        FixtureEnvironment env{code, std::span{bytes}.first(0x50), stage == 1 ? Shader::Stage::VertexB : Shader::Stage::Fragment};
-        auto constants_path = std::filesystem::path{directory} / ("cbuf1-" + std::to_string(stage) + ".bin");
-        if (!std::filesystem::exists(constants_path)) constants_path = std::filesystem::path{directory} / "cbuf1.bin";
-        std::ifstream constants(constants_path, std::ios::binary | std::ios::ate);
-        if (constants) {
-            env.cbuf1.resize(static_cast<size_t>(constants.tellg()) / 4);
-            constants.seekg(0);
-            constants.read(reinterpret_cast<char*>(env.cbuf1.data()), env.cbuf1.size() * 4);
-        }
-        Shader::ObjectPool<Shader::Maxwell::Flow::Block> flow_pool;
-        Shader::ObjectPool<IR::Inst> inst_pool;
-        Shader::ObjectPool<IR::Block> block_pool;
-        Shader::Maxwell::Flow::CFG cfg{env, flow_pool, 0x50};
-        Shader::HostTranslateInfo host;
-        host.support_int64 = true;
-        host.support_float64 = true;
-        host.support_float16 = true;
-        const auto program = Shader::Maxwell::TranslateProgram(inst_pool, block_pool, env, cfg, host);
-        REQUIRE(program.stage == env.ShaderStage());
-        REQUIRE_FALSE(program.blocks.empty());
-        REQUIRE_FALSE(program.post_order_blocks.empty());
-    }
-}
-
-TEST_CASE("Native scalar texture sampling preserves coordinates and split outputs", "[native-shader]") {
-    std::array<Native, 2> input{{
-        {{0x04007b60, 0x30800805, 0x041e0f02, 0x100fc200}},
-        VertexTransform.back(),
-    }};
-    const bool predicated = GENERATE(false, true);
-    if (predicated) input[0].words[0] = (input[0].words[0] & ~0xf000U) | 0x3000;
-    const bool explicit_lod = GENERATE(false, true);
-    if (explicit_lod) input[0].words[2] |= 1U << 23;
-    const auto result = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(result);
-    REQUIRE(result.required_texture_buffer == 2);
-    REQUIRE(Shader::Maxwell::Instruction{result.instructions.front()}.Pred().index == (predicated ? 3U : 7U));
-    REQUIRE_FALSE(Shader::Maxwell::Instruction{result.instructions.front()}.Pred().negated);
-    REQUIRE(Shader::Maxwell::Decode(result.instructions.front()) == Shader::Maxwell::Opcode::TEXS);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.TEXS(result.instructions.front());
-    std::vector<u32> reads;
-    std::vector<u32> writes;
-    u32 samples = 0;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::GetRegister) reads.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == (explicit_lod ? IR::Opcode::BoundImageSampleExplicitLod : IR::Opcode::BoundImageSampleImplicitLod)) {
-            ++samples;
-            if (explicit_lod) REQUIRE(inst.Arg(2).F32() == 0.0f);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructF32x2);
-            for (size_t component = 0; component < 2; ++component) {
-                const auto* cast = coords->Arg(component).Inst();
-                REQUIRE(cast->GetOpcode() == IR::Opcode::BitCastF32U32);
-                const auto* reg = cast->Arg(0).Inst();
-                REQUIRE(reg->GetOpcode() == IR::Opcode::GetRegister);
-                REQUIRE(static_cast<u32>(reg->Arg(0).Reg()) == 4 + component);
-            }
-            REQUIRE(inst.Arg(0).U32() == 0x20);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type == Shader::TextureType::Color2D);
-        }
-    }
-    REQUIRE(samples == 1);
-    std::ranges::sort(reads);
-    REQUIRE(reads == std::vector<u32>{4, 5});
-    REQUIRE(writes == std::vector<u32>{0, 1, 2, 3});
-    // Reject unsupported LOD modes, a different cbuf bank, and sparse results.
-    for (u32 bit : {89U, 54U, 81U}) {
-        auto unsupported = input;
-        unsupported[0].words[bit / 32] ^= 1U << (bit % 32);
-        const auto rejected = Shader::Ampere::LowerToMaxwell(unsupported);
-        REQUIRE_FALSE(rejected);
-        REQUIRE(rejected.instructions.empty());
-    }
-}
-
-TEST_CASE("Native texel fetch keeps integer coordinates and RGB outputs", "[native-shader]") {
-    std::array<Native, 3> input{{
-        {{0x00027305, 0x00000004, 0x0021f100, 0x001ff000}},
-        {{0x02007b66, 0x30800a05, 0x049e0702, 0x101fc200}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(lowered.required_texture_buffer == 2);
-    REQUIRE(Shader::Maxwell::Decode(lowered.instructions[0]) == Shader::Maxwell::Opcode::F2I_reg);
-    REQUIRE(Shader::Maxwell::Decode(lowered.instructions[1]) == Shader::Maxwell::Opcode::TLDS);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.F2I_reg(lowered.instructions[0]);
-    visitor.TLDS(lowered.instructions[1]);
-    std::vector<u32> writes;
-    u32 fetches = 0;
-    bool truncates = false;
-    bool handles_nan = false;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == IR::Opcode::FPTrunc32) {
-            truncates = true;
-            REQUIRE(inst.Flags<IR::FpControl>().fmz_mode == IR::FmzMode::FTZ);
-        }
-        if (inst.GetOpcode() == IR::Opcode::FPIsNan32) handles_nan = true;
-        if (inst.GetOpcode() == IR::Opcode::BoundImageFetch) {
-            ++fetches;
-            REQUIRE(inst.Arg(0).U32() == 0x28);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type == Shader::TextureType::Color2D);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructU32x2);
-            REQUIRE(coords->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{2});
-            REQUIRE(coords->Arg(1).Inst()->Arg(0).Reg() == IR::Reg{5});
-            REQUIRE(inst.Arg(3).U32() == 0);
-        }
-    }
-    REQUIRE(fetches == 1);
-    REQUIRE(truncates);
-    REQUIRE(handles_nan);
-    REQUIRE(writes == std::vector<u32>{2, 0, 1, 2});
-    auto unsupported = input;
-    unsupported[0].words[2] ^= 1U << 13; // NTZ is required by this conversion lowering.
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(unsupported));
-    unsupported = input;
-    unsupported[1].words[2] ^= 1U << 14; // multisample fetch is not implemented here.
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(unsupported));
-}
-
-TEST_CASE("Native texture component masks preserve sampled components", "[native-shader]") {
-    for (const u32 mask : {1U, 2U, 4U, 8U, 3U, 9U, 10U, 12U, 7U, 11U, 13U, 14U, 15U}) {
-        const bool split = std::popcount(mask) > 2;
-        std::array<Native, 2> input{{
-            {{0x04007b60, 0x30800805, 0x041e0f02, 0x100fc200}}, VertexTransform.back(),
-        }};
-        input[0].words[2] = (input[0].words[2] & ~0xfffU) | (split ? 6U : 255U) | (mask << 8);
-        const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-        REQUIRE(lowered);
-        Shader::ObjectPool<IR::Inst> pool;
-        IR::Block block{pool};
-        EmptyEnvironment env;
-        Shader::Maxwell::TranslatorVisitor visitor{env, block};
-        visitor.TEXS(lowered.instructions.front());
-        std::vector<u32> extracted;
-        std::vector<u32> writes;
-        for (const auto& inst : block.Instructions()) {
-            if (inst.GetOpcode() == IR::Opcode::CompositeExtractF32x4) extracted.push_back(inst.Arg(1).U32());
-            if (inst.GetOpcode() == IR::Opcode::SetRegister) writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        }
-        std::vector<u32> expected;
-        for (u32 component = 0; component < 4; ++component) if (mask & (1U << component)) expected.push_back(component);
-        REQUIRE(extracted == expected);
-        REQUIRE(writes.size() == expected.size());
-        for (u32 i = 0; i < writes.size(); ++i) REQUIRE(writes[i] == (i < 2 ? i : i + 4));
-    }
-}
-
-TEST_CASE("Native half packing and arithmetic preserve lane order numerically", "[native-shader]") {
-    const std::array<Native, 15> input{{
-        {{0x0102723e, 0x00000000, 0x000000ff, 0}}, // PACK_AB R2, R1, R0
-        {{0x02027232, 0x00000002, 0x00000000, 0}}, // HMUL2 R2, R2, R2
-        {{0xff037230, 0x20000002, 0x00004100, 0}}, // extract low half to F32 R3
-        {{0xff047230, 0x30000002, 0x00004100, 0}}, // extract high half to F32 R4
-        {{0xff05723e, 0x00000000, 0x00004002, 0}}, // MERGE_C R5, R0, R2
-        {{0x02067230, 0x20000002, 0x00000800, 0}}, // add two low halves: (2,2)
-        {{0x02077231, 0x20000002, 0x00040802, 0}}, // fused 1*1+1: (2,2)
-        {{0x02087240, 0x30000002, 0x03800800, 0}}, // min of low/high: (1,1)
-        {{0x02097840, 0x3c003c00, 0x07800c00, 0}}, // max of high/one: (4,4)
-        {{0x000a7308, 0x00000008, 0x00001200, 0}}, // reciprocal of half one
-        {{0x020b7816, 0x00005410, 0x00000007, 0}}, // concatenate low halves
-        {{0xff0c7230, 0xa0000008, 0x00004100, 0}}, // extract negated low half
-        {{0x020d7230, 0x30000002, 0x00000f00, 0}}, // -abs(high) + high: (0,0)
-        {{0x020e7431, 0x3c003c00, 0x00400802, 0}}, // (1,1) * (1,-4) + (1,1)
-        VertexTransform.back(),
-    }};
-    auto code = input;
-    const u32 selector = GENERATE(0x5410U, 0x5432U, 0x7610U, 0x7632U);
-    code[10].words[1] = selector;
-    if (selector == 0x7610 || selector == 0x7632) code[10].words[2] = 2;
-    const auto lowered = Shader::Ampere::LowerToMaxwell(code);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const u64 word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::F2F_reg: visitor.F2F_reg(word); break;
-        case Opcode::IADD_reg: visitor.IADD_reg(word); break;
-        case Opcode::ISCADD_reg: visitor.ISCADD_reg(word); break;
-        case Opcode::HMUL2_reg: visitor.HMUL2_reg(word); break;
-        case Opcode::HADD2_reg: visitor.HADD2_reg(word); break;
-        case Opcode::HFMA2_reg: visitor.HFMA2_reg(word); break;
-        case Opcode::FMNMX_reg: visitor.FMNMX_reg(word); break;
-        case Opcode::MUFU: visitor.MUFU(word); break;
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::SHR_imm: visitor.SHR_imm(word); break;
-        case Opcode::LOP32I: visitor.LOP32I(word); break;
-        case Opcode::MOV_reg: visitor.MOV_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected canonical half instruction");
-        }
-    }
-    // Independent values with exact binary16 representations exercise packing,
-    // multiplication and extraction through the actual emitted IR data flow.
-    const std::array<std::pair<u16, float>, 5> halves{{{u16{0x4200}, 3.0f}, {u16{0}, 0.0f}, {u16{0x3c00}, 1.0f}, {u16{0x4000}, 2.0f}, {u16{0x4400}, 4.0f}}};
-    const auto from_half = [&](u16 bits) {
-        for (const auto& [encoded, value] : halves) if (encoded == (bits & 0x7fff)) return (bits & 0x8000) ? -value : value;
-        throw std::logic_error("unexpected half value");
-    };
-    const auto to_half = [&](float value) {
-        for (const auto& [encoded, reference] : halves) if (std::abs(value) == reference) return static_cast<u16>(encoded | (std::signbit(value) ? 0x8000 : 0));
-        throw std::logic_error("unexpected float value");
-    };
-    std::array<u32, 256> regs{};
-    regs[0] = std::bit_cast<u32>(1.0f);
-    regs[1] = std::bit_cast<u32>(2.0f);
-    std::unordered_map<const IR::Inst*, u64> values;
-    const auto get = [&](const IR::Value& value) -> u64 {
-        if (!value.IsImmediate()) return values.at(value.Inst());
-        if (value.Type() == IR::Type::U1) return value.U1();
-        if (value.Type() == IR::Type::F32) return std::bit_cast<u32>(value.F32());
-        if (value.Type() == IR::Type::U16 || value.Type() == IR::Type::F16) return value.U16();
-        return value.U32();
-    };
-    for (const auto& inst : block.Instructions()) {
-        const auto arg = [&](size_t i) { return get(inst.Arg(i)); };
-        switch (inst.GetOpcode()) {
-        case IR::Opcode::GetRegister: values[&inst] = regs[static_cast<u32>(inst.Arg(0).Reg())]; break;
-        case IR::Opcode::SetRegister: regs[static_cast<u32>(inst.Arg(0).Reg())] = static_cast<u32>(arg(1)); break;
-        case IR::Opcode::BitCastF32U32:
-        case IR::Opcode::BitCastU32F32: values[&inst] = arg(0); break;
-        case IR::Opcode::ConvertF16F32: values[&inst] = to_half(std::bit_cast<float>(static_cast<u32>(arg(0)))); break;
-        case IR::Opcode::ConvertF32F16: values[&inst] = std::bit_cast<u32>(from_half(static_cast<u16>(arg(0)))); break;
-        case IR::Opcode::CompositeConstructF16x2: values[&inst] = arg(0) | (arg(1) << 32); break;
-        case IR::Opcode::CompositeExtractF16x2: values[&inst] = (arg(0) >> (arg(1) * 32)) & 0xffff; break;
-        case IR::Opcode::PackFloat2x16: values[&inst] = (arg(0) & 0xffff) | ((arg(0) >> 32) << 16); break;
-        case IR::Opcode::UnpackFloat2x16: values[&inst] = (arg(0) & 0xffff) | ((arg(0) >> 16) << 32); break;
-        case IR::Opcode::FPMul16: values[&inst] = to_half(from_half(static_cast<u16>(arg(0))) * from_half(static_cast<u16>(arg(1)))); break;
-        case IR::Opcode::FPAdd16: values[&inst] = to_half(from_half(static_cast<u16>(arg(0))) + from_half(static_cast<u16>(arg(1)))); break;
-        case IR::Opcode::FPFma16: values[&inst] = to_half(std::fma(from_half(static_cast<u16>(arg(0))), from_half(static_cast<u16>(arg(1))), from_half(static_cast<u16>(arg(2))))); break;
-        case IR::Opcode::FPNeg16: values[&inst] = arg(0) ^ 0x8000; break;
-        case IR::Opcode::FPAbs16: values[&inst] = arg(0) & 0x7fff; break;
-        case IR::Opcode::FPAdd32: values[&inst] = std::bit_cast<u32>(std::bit_cast<float>(static_cast<u32>(arg(0))) + std::bit_cast<float>(static_cast<u32>(arg(1)))); break;
-        case IR::Opcode::FPMin32: values[&inst] = std::bit_cast<u32>(std::fmin(std::bit_cast<float>(static_cast<u32>(arg(0))), std::bit_cast<float>(static_cast<u32>(arg(1))))); break;
-        case IR::Opcode::FPMax32: values[&inst] = std::bit_cast<u32>(std::fmax(std::bit_cast<float>(static_cast<u32>(arg(0))), std::bit_cast<float>(static_cast<u32>(arg(1))))); break;
-        case IR::Opcode::FPRecip32: values[&inst] = std::bit_cast<u32>(1.0f / std::bit_cast<float>(static_cast<u32>(arg(0)))); break;
-        case IR::Opcode::SelectF32: values[&inst] = arg(0) ? arg(1) : arg(2); break;
-        case IR::Opcode::BitwiseAnd32: values[&inst] = arg(0) & arg(1); break;
-        case IR::Opcode::BitwiseXor32: values[&inst] = arg(0) ^ arg(1); break;
-
-        case IR::Opcode::ShiftRightLogical32: values[&inst] = static_cast<u32>(arg(0)) >> arg(1); break;
-        case IR::Opcode::SLessThan: values[&inst] = static_cast<s32>(arg(0)) < static_cast<s32>(arg(1)); break;
-        case IR::Opcode::ULessThan: values[&inst] = static_cast<u32>(arg(0)) < static_cast<u32>(arg(1)); break;
-        case IR::Opcode::SelectU32: values[&inst] = arg(0) ? arg(1) : arg(2); break;
-        case IR::Opcode::IAdd32: values[&inst] = static_cast<u32>(arg(0) + arg(1)); break;
-        case IR::Opcode::ShiftLeftLogical32: values[&inst] = static_cast<u32>(arg(0) << arg(1)); break;
-        default: FAIL("Unexpected IR operation in half arithmetic");
-        }
-    }
-    REQUIRE(regs[2] == 0x44003c00);
-    REQUIRE(regs[5] == 0x3c003c00);
-    REQUIRE(regs[6] == 0x40004000U);
-    REQUIRE(regs[7] == 0x40004000U);
-    REQUIRE(regs[8] == 0x3c003c00U);
-    REQUIRE(regs[9] == 0x44004400U);
-    REQUIRE(regs[10] == 0x3c00U);
-    REQUIRE(regs[11] == (selector == 0x7632 ? 0x44004400U : selector == 0x7610 ? 0x44003c00U : selector == 0x5432 ? 0x40004400U : 0x40003c00U));
-    REQUIRE(std::bit_cast<float>(regs[12]) == -1.0f);
-    REQUIRE(regs[13] == 0U);
-    REQUIRE(regs[14] == 0xc2004000U);
-
-    REQUIRE(std::bit_cast<float>(regs[3]) == 1.0f);
-    REQUIRE(std::bit_cast<float>(regs[4]) == 4.0f);
-}
-
-TEST_CASE("Live shader overrides require the exact original instructions", "[native-shader]") {
-    const auto program = Shader::Ampere::LowerToMaxwell(VertexTransform);
-    REQUIRE(program);
-    const auto bytes = Shader::Ampere::EncodeProgramOverride(VertexTransform, program);
-    REQUIRE_FALSE(bytes.empty());
-    REQUIRE(Shader::Ampere::ProgramOverrideSourceSize(bytes) == VertexTransform.size() * 16);
-    REQUIRE(Shader::Ampere::ProgramOverrideSourceSize(std::span{bytes}.first(12)) == 0);
-    auto invalid_source = bytes;
-    invalid_source[8] ^= 1;
-    REQUIRE(Shader::Ampere::ProgramOverrideSourceSize(invalid_source) == 0);
-    const auto decoded = Shader::Ampere::DecodeProgramOverride(bytes, VertexTransform);
-    REQUIRE(decoded);
-    REQUIRE(decoded.instructions == program.instructions);
-    REQUIRE(decoded.source_instruction_offsets == program.source_instruction_offsets);
-    auto invalid_map = bytes;
-    const u32 invalid_target = static_cast<u32>(program.instructions.size());
-    std::memcpy(invalid_map.data() + invalid_map.size() - program.source_instruction_offsets.size() * 4,
-                &invalid_target, sizeof(invalid_target));
-    const auto invalid_mapping = Shader::Ampere::DecodeProgramOverride(invalid_map, VertexTransform);
-    REQUIRE_FALSE(invalid_mapping);
-    REQUIRE(invalid_mapping.instructions.empty());
-
-    REQUIRE(decoded.source_size == program.source_size);
-    REQUIRE(decoded.required_texture_buffer == program.required_texture_buffer);
-    auto different = VertexTransform;
-    different[0].words[1] ^= 4;
-    REQUIRE(Shader::Ampere::NativeProgramKey(different) != Shader::Ampere::NativeProgramKey(VertexTransform));
-    const auto mismatch = Shader::Ampere::DecodeProgramOverride(bytes, different);
-    REQUIRE_FALSE(mismatch);
-    REQUIRE(mismatch.instructions.empty());
-    REQUIRE_FALSE(Shader::Ampere::DecodeProgramOverride(std::span{bytes}.first(12), VertexTransform));
-    REQUIRE_FALSE(Shader::Ampere::DecodeProgramOverride(std::span{bytes}.first(bytes.size() - 1), VertexTransform));
-    auto wrong_version = bytes;
-    wrong_version[4] ^= 1;
-    REQUIRE_FALSE(Shader::Ampere::DecodeProgramOverride(wrong_version, VertexTransform));
-    auto wrong_binding = bytes;
-    const u32 bank = 18;
-    std::memcpy(wrong_binding.data() + 16, &bank, sizeof(bank));
-    REQUIRE_FALSE(Shader::Ampere::DecodeProgramOverride(wrong_binding, VertexTransform));
-}
-
-TEST_CASE("Native integer shader forms preserve signed arithmetic and immediate values", "[native-shader]") {
-    // Synthetic vertex program: output (id + arithmetic_shift(id, 1), 4.0).
-    const std::array<Native, 7> input{{
-        {{0xff007321, 0x0002fcff, 0x00000000, 0x000e2200}},
-        {{0xff017819, 0x00000001, 0x00011400, 0x000fe400}},
-        {{0x00007824, 0x00000001, 0x078e0201, 0x000fe200}},
-        {{0x00007245, 0x00000000, 0x00201400, 0x000fc600}},
-        {{0xff017424, 0x40800000, 0x078e00ff, 0x000fe200}},
-        {{0xff007322, 0x00007000, 0x000004ff, 0x000fe200}},
-        VertexTransform.back(),
-    }};
-    auto program = input;
-    const u32 mode = GENERATE(0U, 1U, 2U, 3U, 4U, 5U, 6U, 7U, 8U);
-    if (mode == 7) program[2] = Native{{0x00007217, 1, 0x03800200, 0}};
-    if (mode == 8) program[2] = Native{{0x00007217, 1, 0x07800200, 0}};
-    if (mode == 5) program[2] = Native{{0x00007210, 0x00000001, 0x07ffe1ff, 0}};
-    if (mode == 6) program[2] = Native{{0x00007817, 0x0000003f, 0x07800200, 0}};
-    if (mode == 4) program[2] = Native{{0x00007817, 0x0000003f, 0x03800200, 0}};
-    if (mode == 1) program[2] = Native{{0x00007210, 0x00000001, 0x07ffe0ff, 0x000fe200}};
-    if (mode == 3) program[2] = Native{{0x00007210, 0x80000001, 0x07ffe0ff, 0x000fe200}};
-    if (mode == 2) program[1] = Native{{0x00017819, 0x00000001, 0x000006ff, 0x000fe200}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(program);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const u64 word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::ALD: visitor.ALD(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::SHR_imm: visitor.SHR_imm(word); break;
-        case Opcode::SHL_imm: visitor.SHL_imm(word); break;
-        case Opcode::IMNMX_reg: visitor.IMNMX_reg(word); break;
-        case Opcode::IMNMX_imm: visitor.IMNMX_imm(word); break;
-        case Opcode::IADD_reg: visitor.IADD_reg(word); break;
-        case Opcode::I2F_reg: visitor.I2F_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected lowered integer shader instruction");
-        }
-    }
-    for (const s32 id : {0, 1, 2, -1, -3, 12345}) {
-        REQUIRE(EvaluateVertex(block, {}, {}, id) ==
-                std::array<float, 2>{static_cast<float>(mode == 2 ? id * 3 : mode == 3 ? id - (id >> 1) : mode == 4 ? std::min<s32>(id, 63) : mode == 5 ? -id + (id >> 1) : mode == 6 ? std::max<s32>(id, 63) : mode == 7 ? std::min<s32>(id, id >> 1) : mode == 8 ? std::max<s32>(id, id >> 1) : id + (id >> 1)), 4.0f});
-    }
-}
-
-TEST_CASE("Native single-channel texel fetch writes only its selected result", "[native-shader]") {
-    std::array<Native, 2> input{{
-        {{0x04017b66, 0x30800805, 0x049e01ff, 0x001fc200}},
-        VertexTransform.back(),
-    }};
-    const u32 component = GENERATE(0U, 1U, 2U, 3U);
-    input[0].words[2] = (input[0].words[2] & ~0xf00U) | (1U << (8 + component));
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(lowered.required_texture_buffer == 2);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.TLDS(lowered.instructions.front());
-    std::vector<u32> writes;
-    u32 fetches = 0;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::SetRegister)
-            writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == IR::Opcode::BoundImageFetch) {
-            ++fetches;
-            REQUIRE(inst.Arg(0).U32() == 0x20);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructU32x2);
-            REQUIRE(coords->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{4});
-            REQUIRE(coords->Arg(1).Inst()->Arg(0).Reg() == IR::Reg{5});
-        }
-        if (inst.GetOpcode() == IR::Opcode::CompositeExtractF32x4)
-            REQUIRE(inst.Arg(1).U32() == component);
-    }
-    REQUIRE(fetches == 1);
-    REQUIRE(writes == std::vector<u32>{1});
-}
-
-TEST_CASE("Native IMAD move loads the actual constant-buffer value", "[native-shader]") {
-    const std::array<Native, 3> input{{
-        {{0xff007624, 0x00c00100, 0x078e00ff, 0x000fe200}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0x000fe200}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    REQUIRE(Shader::Maxwell::Decode(lowered.instructions.front()) == Shader::Maxwell::Opcode::MOV_cbuf);
-    visitor.MOV_cbuf(lowered.instructions[0]);
-    visitor.AST(lowered.instructions[1]);
-    REQUIRE(EvaluateVertex(block, {}, {13, -2.5f, 99, 7}) == std::array<float, 2>{-2.5f, 0.0f});
-    auto unsupported = input;
-    unsupported[0].words[1] |= 1U << 30;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(unsupported));
-}
-
-TEST_CASE("Depth-stencil descriptors ignore the unused blue and alpha component types", "[native-gpu]") {
-    using Tegra::Texture::ComponentType;
-    using Tegra::Texture::TextureFormat;
-    using VideoCore::Surface::PixelFormat;
-    for (const auto unused : {ComponentType::UNORM, ComponentType::UINT}) {
-        REQUIRE(VideoCommon::PixelFormatFromTextureInfo(TextureFormat::S8Z24,
-            ComponentType::UNORM, ComponentType::UINT, unused, unused, false) ==
-            PixelFormat::D24_UNORM_S8_UINT);
-    }
-}
-
-TEST_CASE("Native floating min/max clamps actual shader input", "[native-shader]") {
-    const std::array<Native, 5> input{{
-        {{0xff007321, 0x000080ff, 0x00000000, 0x000e2200}},
-        {{0x00007a09, 0x00c00000, 0x07810000, 0x000fe400}},
-        {{0x00007a09, 0x00c00100, 0x03810000, 0x000fe400}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0x000fe200}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::ALD: visitor.ALD(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::FMNMX_reg: visitor.FMNMX_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected native min/max lowering");
-        }
-    }
-    for (const float value : {-20.0f, -1.0f, 0.25f, 2.0f, 100.0f})
-        REQUIRE(EvaluateVertex(block, {value, 0}, {-1, 2, 0, 0}) ==
-                std::array<float, 2>{std::clamp(value, -1.0f, 2.0f), 0});
-}
-
-TEST_CASE("Native boolean float comparison preserves register moves and absolute inputs", "[native-shader]") {
-    const std::array<Native, 5> input{{
-        {{0xff007321, 0x000080ff, 0x00000000, 0}},
-        {{0xff017224, 0x000000ff, 0x078e0000, 0}},
-        {{0x01007a0a, 0x00c00000, 0x03811200, 0}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::ALD: visitor.ALD(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV_reg: visitor.MOV_reg(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::LOP32I: visitor.LOP32I(word); break;
-        case Opcode::FSET_reg: visitor.FSET_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected native boolean float comparison lowering");
-        }
-    }
-    for (const float value : {-3.0f, -1.0f, 0.0f, 2.0f, 4.0f})
-        REQUIRE(EvaluateVertex(block, {value, 0}, {2, 0, 0, 0}) ==
-                std::array<float, 2>{std::abs(value) < 2.0f ? 1.0f : 0.0f, 0});
-}
-
-TEST_CASE("Native unsigned conversion saturates, clears NaNs, and extracts the low byte", "[native-shader]") {
-    std::array<Native, 5> input{{
-        {{0xff007321, 0x000080ff, 0x00000000, 0}},
-        {{0x00017305, 0x00000000, 0x0021f000, 0}},
-        {{0x00007306, 0x00000001, 0x00001000, 0}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0}},
-        VertexTransform.back(),
-    }};
-    const bool constant_source = GENERATE(false, true);
-    if (constant_source) input[1] = Native{{0x00017b05, 0x00c00000, 0x0021f000, 0}};
-    const u32 conversion_mode = GENERATE(0U, 1U, 2U);
-    const bool short_round = conversion_mode == 1;
-    if (conversion_mode == 2) input[1].words[2] = 0x00207000;
-    if (short_round) input[1].words[2] = 0x00212800;
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::ALD: visitor.ALD(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::FSET_reg: visitor.FSET_reg(word); break;
-        case Opcode::FMNMX_reg: visitor.FMNMX_reg(word); break;
-        case Opcode::LOP_reg: visitor.LOP_reg(word); break;
-        case Opcode::F2I_reg: visitor.F2I_reg(word); break;
-        case Opcode::I2F_reg: visitor.I2F_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected unsigned conversion lowering");
-        }
-    }
-    const std::array<std::pair<float, float>, 9> cases{{
-        {std::numeric_limits<float>::quiet_NaN(), 0.0f},
-        {-std::numeric_limits<float>::infinity(), 0.0f}, {-3.0f, 0.0f}, {1.9f, 1.0f},
-        {300.75f, 44.0f}, {65535.0f, 255.0f}, {4294967040.0f, 0.0f},
-        {4294967296.0f, 255.0f}, {std::numeric_limits<float>::infinity(), 255.0f},
-    }};
-    for (const auto& [value, expected] : cases) {
-        const float rounded = std::isnan(value) ? 0.0f : static_cast<float>(static_cast<u32>(
-            std::clamp(std::nearbyint(static_cast<double>(value)), 0.0, 65535.0)) & 255);
-        REQUIRE(EvaluateVertex(block, {value, 0}, {value, 0, 0, 0}) == std::array<float, 2>{short_round ? rounded : expected, 0});
-    }
-}
-
-TEST_CASE("Native depth-comparison sample preserves XY coordinates and reference depth", "[native-shader]") {
-    const std::array<Native, 2> input{{
-        {{0x04017b60, 0x30800806, 0x041e41ff, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.TEXS(lowered.instructions.front());
-    u32 samples = 0;
-    std::vector<u32> writes;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::SetRegister)
-            writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == IR::Opcode::BoundImageSampleDrefImplicitLod) {
-            ++samples;
-            REQUIRE(inst.Arg(0).U32() == 0x20);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructF32x2);
-            for (u32 i = 0; i < 2; ++i)
-                REQUIRE(coords->Arg(i).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{4 + i});
-            REQUIRE(inst.Arg(2).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{6});
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().is_depth == 1);
-        }
-    }
-    REQUIRE(samples == 1);
-    REQUIRE(writes == std::vector<u32>{1});
-}
-
-TEST_CASE("Native array texel fetch preserves layer and separates XY registers", "[native-shader]") {
-    std::array<Native, 2> input{{
-        {{0x06007b66, 0xb0800809, 0x009e0f02, 0}},
-        VertexTransform.back(),
-    }};
-    const bool sparse = GENERATE(false, true);
-    if (sparse) input[0].words[2] = 0x009e0b23;
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.MOV_reg(lowered.instructions[0]);
-    visitor.MOV_reg(lowered.instructions[1]);
-    visitor.TLDS(lowered.instructions[2]);
-    u32 fetches = 0;
-    std::vector<u32> writes, components;
-    std::vector<std::pair<u32, u32>> copies;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::SetRegister && static_cast<u32>(inst.Arg(0).Reg()) < 250)
-            writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == IR::Opcode::CompositeExtractF32x4)
-            components.push_back(inst.Arg(1).U32());
-        if (inst.GetOpcode() == IR::Opcode::SetRegister &&
-            static_cast<u32>(inst.Arg(0).Reg()) >= 250) {
-            REQUIRE(inst.Arg(1).Inst()->GetOpcode() == IR::Opcode::GetRegister);
-            copies.emplace_back(static_cast<u32>(inst.Arg(0).Reg()),
-                                static_cast<u32>(inst.Arg(1).Inst()->Arg(0).Reg()));
-        }
-        if (inst.GetOpcode() == IR::Opcode::BoundImageFetch) {
-            ++fetches;
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type == Shader::TextureType::ColorArray2D);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructU32x3);
-            REQUIRE(coords->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{250});
-            REQUIRE(coords->Arg(1).Inst()->Arg(0).Reg() == IR::Reg{251});
-            const auto* layer = coords->Arg(2).Inst();
-            REQUIRE(layer->GetOpcode() == IR::Opcode::BitFieldUExtract);
-            REQUIRE(layer->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{6});
-            REQUIRE(layer->Arg(1).U32() == 0);
-            REQUIRE(layer->Arg(2).U32() == 16);
-        }
-    }
-    REQUIRE(fetches == 1);
-    REQUIRE(writes == (sparse ? std::vector<u32>{0, 1, 35} : std::vector<u32>{0, 1, 2, 3}));
-    REQUIRE(components == (sparse ? std::vector<u32>{0, 1, 3} : std::vector<u32>{0, 1, 2, 3}));
-    REQUIRE(copies == std::vector<std::pair<u32, u32>>{{250, 7}, {251, 9}});
-}
-
-TEST_CASE("Native bitwise LUT forms preserve source bits without changing predicates", "[native-shader]") {
-    std::array<Native, 5> input{{
-        {{0x00007a02, 0x00c00000, 0x00000f00, 0}},
-        {{0x00027a02, 0x00c00200, 0x00000f00, 0}},
-        {{0x00007812, 0x80000000, 0x078ef802, 0}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0}},
-        VertexTransform.back(),
-    }};
-    const u32 mode = GENERATE(0U, 1U, 2U);
-    if (mode == 2) input[2] = Native{{0x00007812, 0x80000000, 0x078ee202, 0}};
-    if (mode == 1) input[2] = Native{{0x00007212, 0x00000002, 0x078efcff, 0}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::LOP_reg: visitor.LOP_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected native bitwise LUT lowering");
-        }
-    }
-    for (const auto& inst : block.Instructions()) REQUIRE(inst.GetOpcode() != IR::Opcode::SetPred);
-    for (const float a : {-1.0f, 1.0f}) for (const float c : {-2.0f, 2.0f}) {
-        const u32 c_bits = std::bit_cast<u32>(c);
-        const u32 a_bits = std::bit_cast<u32>(a);
-        const u32 expected = mode == 2 ? (a_bits & 0x80000000U) | (c_bits & 0x7fffffffU) :
-            a_bits | (mode == 1 ? c_bits : c_bits & 0x80000000U);
-        REQUIRE(EvaluateVertex(block, {}, {a, 0, c, 0}) ==
-                std::array<float, 2>{std::bit_cast<float>(expected), 0});
-    }
-}
-
-TEST_CASE("Native one-dimensional texel fetch preserves its integer coordinate", "[native-shader]") {
-    const std::array<Native, 2> input{{
-        {{0x04017b66, 0x108008ff, 0x009e01ff, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.TLDS(lowered.instructions.front());
-    u32 fetches = 0;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageFetch) {
-            ++fetches;
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type == Shader::TextureType::Color1D);
-            REQUIRE(inst.Arg(1).Inst()->GetOpcode() == IR::Opcode::GetRegister);
-            REQUIRE(inst.Arg(1).Inst()->Arg(0).Reg() == IR::Reg{4});
-        }
-    }
-    REQUIRE(fetches == 1);
-}
-
-TEST_CASE("Native call and return preserve values through the actual shader frontend", "[native-shader]") {
-    std::array<Native, 9> input{{
-        {{0x00007802, 0x40000000, 0x00000f00, 0}}, // argument 2.0
-        {{0x00377802, 0x00000030, 0x00000f00, 0}}, // native return PC
-        {{0x00007944, 0x00000020, 0x03c00000, 0}}, // call offset0x50
-        {{0xff007322, 0x00007003, 0x000000ff, 0}},
-        VertexTransform.back(),
-        {{0x00037421, 0x40400000, 0x00010000, 0}}, // callee: add 3.0
-        {{0x00087202, 0x00000037, 0x00000f00, 0}},
-        {{0x00097802, 0x00000000, 0x00000f00, 0}},
-        {{0x08007950, 0xffffff70, 0x03c3ffff, 0}},
-    }};
-    const bool alternate_link = GENERATE(false, true);
-    if (alternate_link) {
-        input[1].words[0] = 0x00397802;
-        input[6] = Native{{0x00007202, 0x00000039, 0x00000f00, 0}};
-        input[7].words[0] = 0x00017802;
-        input[8].words[0] = 0x00007950;
-    }
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(lowered.source_size == input.size() * 16);
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(std::span{input}.first(5)));
-    auto broken = input;
-    broken[1].words[1] += 16;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(broken));
-    broken = input;
-    broken.back().words[1] += 16;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(broken));
-    std::vector<u64> code(0x50 / 8);
-    for (const auto word : lowered.instructions) {
-        if ((code.size() * 8) % 32 == 0) code.push_back(0);
-        code.push_back(word);
-    }
-    class CallEnvironment final : public EmptyEnvironment {
-    public:
-        explicit CallEnvironment(const std::vector<u64>& code_) : code{code_} { stage = Shader::Stage::VertexB; }
-        u64 ReadInstruction(u32 address) override { return code.at(address / 8); }
-        const std::vector<u64>& code;
-    } env{code};
-    Shader::ObjectPool<Shader::Maxwell::Flow::Block> flow_pool;
-    Shader::ObjectPool<IR::Inst> inst_pool;
-    Shader::ObjectPool<IR::Block> block_pool;
-    Shader::Maxwell::Flow::CFG cfg{env, flow_pool, 0x50};
-    REQUIRE(cfg.Functions().size() == 2);
-    Shader::HostTranslateInfo host;
-    const auto program = Shader::Maxwell::TranslateProgram(inst_pool, block_pool, env, cfg, host);
-    u32 stores = 0;
-    for (const auto* block : program.blocks) {
-        for (const auto& inst : block->Instructions()) {
-            if (inst.GetOpcode() != IR::Opcode::SetAttribute) continue;
-            ++stores;
-            REQUIRE(inst.Arg(1).IsImmediate());
-            REQUIRE(inst.Arg(1).F32() == 5.0f);
-        }
-    }
-    REQUIRE(stores == 1);
-}
-
-TEST_CASE("Native scaled multiplication preserves captured power-of-two scales", "[native-shader]") {
-    std::array<Native, 4> input{{
-        VertexTransform.front(),
-        {{0x00007220, 0x00000001, 0x00310000, 0}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0}},
-        VertexTransform.back(),
-    }};
-    const u32 scale = GENERATE(3U, 4U, 5U, 6U);
-    input[1].words[2] = (scale << 20) | 0x10000;
-    const float factor = scale == 3 ? 0.5f : scale == 5 ? 2.0f : scale == 6 ? 4.0f : 1.0f;
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.ALD(lowered.instructions[0]);
-    visitor.FMUL_reg(lowered.instructions[1]);
-    visitor.AST(lowered.instructions[2]);
-    REQUIRE(EvaluateVertex(block, {8, 4}, {}) == std::array<float, 2>{32 * factor, 0});
-    REQUIRE(EvaluateVertex(block, {-2, 3}, {}) == std::array<float, 2>{-6 * factor, 0});
-}
-
-TEST_CASE("Native integer multiply preserves high words and modular multiply-add", "[native-shader]") {
-    const u32 mode = GENERATE(0U, 1U, 2U, 3U, 4U);
-    Native instruction{{0x00037827, 0xcccccccd, 0x078e00ff, 0}};
-    if (mode == 1) instruction = Native{{0x00037824, 0xfffffff6, 0x078e0202, 0}};
-    if (mode == 2) instruction = Native{{0x00037a24, 0x00c00000, 0x078e0202, 0}};
-    if (mode == 4) instruction = Native{{0x00037811, 0x00000070, 0x078e20ff, 0}};
-    if (mode == 3) instruction = Native{{0x00037224, 0x00000001, 0x078e0202, 0}};
-    const std::array<Native, 2> input{{instruction, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::XMAD_imm: visitor.XMAD_imm(word); break;
-        case Opcode::XMAD_reg: visitor.XMAD_reg(word); break;
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::ISCADD_reg: visitor.ISCADD_reg(word); break;
-        case Opcode::SHR_imm: visitor.SHR_imm(word); break;
-        case Opcode::IADD_reg: visitor.IADD_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected canonical integer multiplication instruction");
-        }
-    }
-    for (u32 a : {0U, 1U, 9U, 10U, 65535U, 65536U, 0x80000000U, 0xfffffffeU, 0xffffffffU, 0x12345678U}) {
-        std::array<u32, 256> regs{};
-        regs[0] = a;
-        regs[1] = 0x76543210;
-        regs[2] = 0xfedcba98;
-        std::unordered_map<const IR::Inst*, u32> values;
-        const auto get = [&](const IR::Value& value) -> u32 {
-            if (!value.IsImmediate()) return values.at(value.Inst());
-            return value.Type() == IR::Type::U1 ? static_cast<u32>(value.U1()) : value.U32();
-        };
-        for (const auto& inst : block.Instructions()) {
-            const auto arg = [&](size_t i) { return get(inst.Arg(i)); };
-            switch (inst.GetOpcode()) {
-            case IR::Opcode::GetRegister: values[&inst] = regs[static_cast<u32>(inst.Arg(0).Reg())]; break;
-            case IR::Opcode::SetRegister: regs[static_cast<u32>(inst.Arg(0).Reg())] = arg(1); break;
-            case IR::Opcode::GetCbufU32:
-                REQUIRE(arg(0) == 3);
-                REQUIRE(arg(1) == 0);
-                values[&inst] = 0x76543210;
-                break;
-            case IR::Opcode::BitFieldUExtract: values[&inst] = (arg(0) >> arg(1)) & ((1U << arg(2)) - 1); break;
-            case IR::Opcode::IMul32: values[&inst] = arg(0) * arg(1); break;
-            case IR::Opcode::IAdd32: values[&inst] = arg(0) + arg(1); break;
-            case IR::Opcode::ShiftLeftLogical32: values[&inst] = arg(0) << arg(1); break;
-            case IR::Opcode::ShiftRightLogical32: values[&inst] = arg(0) >> arg(1); break;
-            case IR::Opcode::ULessThan: values[&inst] = arg(0) < arg(1); break;
-            case IR::Opcode::SLessThan: values[&inst] = static_cast<s32>(arg(0)) < static_cast<s32>(arg(1)); break;
-            case IR::Opcode::SelectU32: values[&inst] = arg(0) ? arg(1) : arg(2); break;
-            default: FAIL("Unexpected multiplication IR operation " << IR::NameOf(inst.GetOpcode()));
-            }
-        }
-        const u32 b = mode == 0 ? 0xcccccccd : mode == 1 ? 0xfffffff6 : 0x76543210;
-        const u64 product = u64{a} * b;
-        const u32 expected = mode == 4 ? (a << 4) + 0x70U : mode == 0 ? static_cast<u32>(product >> 32)
-                                       : static_cast<u32>(product + 0xfedcba98U);
-        REQUIRE(regs[3] == expected);
-    }
-}
-
-TEST_CASE("Native uniform constants keep their indexed load and arithmetic values", "[native-shader]") {
-    const std::array<Native, 7> input{{
-        {{0xff007321, 0x000080ff, 0x00000000, 0}},
-        {{0x00047ab9, 0x00c00000, 0x00000800, 0}},
-        {{0x04047899, 0x00000002, 0x0800063f, 0}},
-        {{0x04057abb, 0x00c00000, 0x08000800, 0}},
-        {{0x00007c20, 0x00000005, 0x08410000, 0}},
-        {{0x00007e21, 0x80000005, 0x08010000, 0}},
-        VertexTransform.back(),
-    }};
-    auto code = input;
-    // Store the computed scalar instead of ending immediately.
-    std::vector<Native> program(code.begin(), code.end() - 1);
-    program.push_back(Native{{0xff007322, 0x00007000, 0x000000ff, 0}});
-    program.push_back(VertexTransform.back());
-    const auto lowered = Shader::Ampere::LowerToMaxwell(program);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::ALD: visitor.ALD(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::MOV_reg: visitor.MOV_reg(word); break;
-        case Opcode::LOP32I: visitor.LOP32I(word); break;
-        case Opcode::SHL_imm: visitor.SHL_imm(word); break;
-        case Opcode::LDC: visitor.LDC(word); break;
-        case Opcode::FMUL_reg: visitor.FMUL_reg(word); break;
-        case Opcode::FADD_reg: visitor.FADD_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected uniform instruction lowering");
-        }
-    }
-    const std::array<float, 4> constants{std::bit_cast<float>(1U), 3.0f, 7.0f, 9.0f};
-    REQUIRE(EvaluateVertex(block, {2, 0}, constants) == std::array<float, 2>{3, 0});
-    REQUIRE(EvaluateVertex(block, {4, 0}, constants) == std::array<float, 2>{9, 0});
-    auto conflict = program;
-    conflict[0].words[0] = 0xfff87321; // Native R248 conflicts with the reserved uniform bank.
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(conflict));
-}
-
-TEST_CASE("Native predicate-output LUTs preserve boolean bit tests", "[native-shader]") {
-    const std::array<Native, 3> input{{
-        {{0x00ff7812, 0x00000001, 0x0780c0ff, 0}},
-        {{0x01ff7812, 0x00000001, 0x07824802, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::LOP_reg: visitor.LOP_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected predicate LUT lowering");
-        }
-    }
-    for (u32 a = 0; a < 4; ++a) for (u32 b = 0; b < 4; ++b) for (u32 c = 0; c < 4; ++c) {
-        std::array<u32, 256> regs{};
-        regs[0] = a; regs[1] = b; regs[2] = c;
-        std::array<bool, 7> predicates{false, false, true, false, true, false, true};
-        std::unordered_map<const IR::Inst*, u32> values;
-        const auto get = [&](const IR::Value& value) -> u32 {
-            if (!value.IsImmediate()) return values.at(value.Inst());
-            return value.Type() == IR::Type::U1 ? static_cast<u32>(value.U1()) : value.U32();
-        };
-        for (const auto& inst : block.Instructions()) {
-            const auto arg = [&](size_t i) { return get(inst.Arg(i)); };
-            switch (inst.GetOpcode()) {
-            case IR::Opcode::GetRegister: values[&inst] = regs[static_cast<u32>(inst.Arg(0).Reg())]; break;
-            case IR::Opcode::SetRegister: regs[static_cast<u32>(inst.Arg(0).Reg())] = arg(1); break;
-            case IR::Opcode::BitwiseAnd32: values[&inst] = arg(0) & arg(1); break;
-            case IR::Opcode::BitwiseOr32: values[&inst] = arg(0) | arg(1); break;
-            case IR::Opcode::BitwiseXor32: values[&inst] = arg(0) ^ arg(1); break;
-            case IR::Opcode::INotEqual: values[&inst] = arg(0) != arg(1); break;
-            case IR::Opcode::SetPred: predicates[static_cast<u32>(inst.Arg(0).Pred())] = arg(1) != 0; break;
-            default: FAIL("Unexpected predicate LUT IR " << IR::NameOf(inst.GetOpcode()));
-            }
-        }
-        REQUIRE(predicates[0] == ((a & 1) != 0));
-        REQUIRE(predicates[1] == (((b ^ c) & 1) != 0));
-        REQUIRE(std::array<bool, 5>{predicates[2], predicates[3], predicates[4], predicates[5], predicates[6]} ==
-                std::array<bool, 5>{true, false, true, false, true});
-    }
-}
-
-TEST_CASE("Native cube sampling preserves XYZ, explicit LOD, and split RGB destinations", "[native-shader]") {
-    std::array<Native, 2> input{{
-        {{0x04007b60, 0x70800808, 0x059e0703, 0}},
-        VertexTransform.back(),
-    }};
-    const bool volume = GENERATE(false, true);
-    if (volume) {
-        input[0].words[1] = (input[0].words[1] & ~(7U << 29)) | (2U << 29);
-        input[0].words[2] = (input[0].words[2] & ~(7U << 23)) | (1U << 23);
-    }
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::MOV_reg: visitor.MOV_reg(word); break;
-        case Opcode::TEX: visitor.TEX(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected cube sampling lowering");
-        }
-    }
-    u32 samples = 0;
-    std::vector<std::pair<u32, u32>> copies;
-    std::vector<u32> writes;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) {
-            const u32 target = static_cast<u32>(inst.Arg(0).Reg());
-            if (target < 248) writes.push_back(target);
-            if (inst.Arg(1).Inst()->GetOpcode() == IR::Opcode::GetRegister)
-                copies.emplace_back(target, static_cast<u32>(inst.Arg(1).Inst()->Arg(0).Reg()));
-        }
-        if (inst.GetOpcode() == IR::Opcode::BoundImageSampleExplicitLod) {
-            ++samples;
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type == (volume ? Shader::TextureType::Color3D : Shader::TextureType::ColorCube));
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructF32x3);
-            for (u32 i = 0; i < 3; ++i)
-                REQUIRE(coords->Arg(i).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{250 + i});
-            if (volume) REQUIRE(inst.Arg(2).F32() == 0.0f);
-            else REQUIRE(inst.Arg(2).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{9});
-        }
-    }
-    REQUIRE(samples == 1);
-    REQUIRE(writes == std::vector<u32>{0, 1, 3});
-    REQUIRE(copies == std::vector<std::pair<u32, u32>>{{250, 4}, {251, 5}, {252, 8}, {0, 250}, {1, 251}, {3, 252}});
-}
-
-TEST_CASE("Native branch maps survive code caching and reject invalid addresses", "[native-shader]") {
-    std::vector<u64> code(64);
-    const std::array<u32, 4> offsets{0, 2, 4, 8};
-    Shader::Ampere::AppendNativeAddressMap(code, offsets);
-    REQUIRE(Shader::Ampere::HasNativeAddressMap(code));
-    REQUIRE(Shader::Ampere::NativeProgramAddress(code, 0) == 0x50U);
-    REQUIRE(Shader::Ampere::NativeProgramAddress(code, 16) == 0x68U);
-    const auto restored = code;
-    REQUIRE(Shader::Ampere::NativeProgramAddress(restored, 48) == 0xa8U);
-    REQUIRE_FALSE(Shader::Ampere::NativeProgramAddress(code, 1));
-    REQUIRE_FALSE(Shader::Ampere::NativeProgramAddress(code, 64));
-    code[code.size() - 2] = 100000;
-    REQUIRE_FALSE(Shader::Ampere::NativeProgramAddress(code, 0));
-}
-
-TEST_CASE("Native computed jumps retain table values while mapping code destinations", "[native-shader]") {
-    const std::array<Native, 12> input{{
-        {{0xff007321, 0x0002fcff, 0x00000000, 0}},
-        {{0x00007817, 0x00000001, 0x03800000, 0}},
-        {{0x00027819, 0x00000002, 0x000006ff, 0}},
-        {{0x02007b82, 0x00400000, 0x00000800, 0}},
-        {{0xff037421, 0x3f000000, 0x00010000, 0}},
-        {{0x00007949, 0xffffffa0, 0x0383ffff, 0}},
-        {{0x00007802, 0x3f800000, 0x00000f00, 0}},
-        {{0x00007947, 0x00000020, 0x03800000, 0}},
-        {{0x00007802, 0x40000000, 0x00000f00, 0}},
-        {{0x00007947, 0x00000000, 0x03800000, 0}},
-        {{0xff007322, 0x00007000, 0x000000ff, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    std::vector<u64> code(0x50 / 8);
-    for (const auto word : lowered.instructions) {
-        if ((code.size() * 8) % 32 == 0) code.push_back(0);
-        code.push_back(word);
-    }
-    code.push_back(0);
-    Shader::Ampere::AppendNativeAddressMap(code, lowered.source_instruction_offsets);
-    class BranchEnvironment final : public EmptyEnvironment {
-    public:
-        explicit BranchEnvironment(const std::vector<u64>& code_) : code{code_} { stage = Shader::Stage::VertexB; }
-        u64 ReadInstruction(u32 address) override { return code.at(address / 8); }
-        u32 ReadCbufValue(u32 bank, u32 offset) override {
-            REQUIRE(bank == 1);
-            REQUIRE((offset == 0 || offset == 4));
-            return offset == 0 ? 0x60 : 0x80;
-        }
-        u32 TranslateProgramAddress(u32 address) const override {
-            const auto target = Shader::Ampere::NativeProgramAddress(code, address);
-            if (!target) throw std::logic_error("invalid synthetic branch target");
-            return *target;
-        }
-        const std::vector<u64>& code;
-    } env{code};
-    Shader::ObjectPool<Shader::Maxwell::Flow::Block> flow_pool;
-    Shader::ObjectPool<IR::Inst> inst_pool;
-    Shader::ObjectPool<IR::Block> block_pool;
-    Shader::Maxwell::Flow::CFG cfg{env, flow_pool, 0x50};
-    u32 jumps = 0;
-    for (const auto& block : cfg.Functions().front().blocks) {
-        if (block.end_class != Shader::Maxwell::Flow::EndClass::IndirectBranch) continue;
-        ++jumps;
-        REQUIRE(block.branch_offset == 0);
-        REQUIRE(block.indirect_branches.size() == 2);
-        for (const auto& branch : block.indirect_branches) {
-            REQUIRE((branch.address == 0x60 || branch.address == 0x80));
-            REQUIRE(branch.block->begin.Offset() == env.TranslateProgramAddress(branch.address));
-            REQUIRE(branch.block->begin.Offset() != branch.address);
-        }
-    }
-    REQUIRE(jumps == 1);
-    Shader::HostTranslateInfo host;
-    const auto program = Shader::Maxwell::TranslateProgram(inst_pool, block_pool, env, cfg, host);
-    REQUIRE_FALSE(program.blocks.empty());
-}
-
-TEST_CASE("Native forward branches retain paths beyond an early unconditional exit", "[native-shader]") {
-    const Native exit{{0x0000794d, 0, 0x03800000, 0x000fea00}};
-    const std::array<Native, 4> source{{
-        {{0x00000947, 0x20, 0x03800000, 0x000fea00}},
-        exit,
-        {{0x00017802, 42, 0x00000f00, 0x000fe400}},
-        exit,
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(source);
-    REQUIRE(lowered);
-    REQUIRE(lowered.source_size == sizeof(source));
-    REQUIRE(lowered.source_instruction_offsets.size() == source.size());
-    REQUIRE(lowered.instructions.size() == 4);
-    const auto truncated = Shader::Ampere::LowerToMaxwell(std::span{source}.first(2));
-    REQUIRE_FALSE(truncated);
-    REQUIRE(truncated.instructions.empty());
-}
-
-TEST_CASE("Native register-to-predicate writes only masked predicate bits", "[native-shader]") {
-    const std::array<Native, 2> source{{{{0x05007804, 7, 0, 0x000fe200}}, VertexTransform.back()}};
-    for (u32 byte = 0; byte < 4; ++byte) {
-        auto selected = source;
-        selected[0].words[2] = byte << 12;
-        const auto lowered = Shader::Ampere::LowerToMaxwell(selected);
-        REQUIRE(lowered);
-        REQUIRE(Shader::Maxwell::Decode(lowered.instructions[0]) == Shader::Maxwell::Opcode::R2P_imm);
-        Shader::ObjectPool<IR::Inst> pool;
-        IR::Block block{pool};
-        EmptyEnvironment env;
-        Shader::Maxwell::TranslatorVisitor visitor{env, block};
-        visitor.R2P_imm(lowered.instructions[0]);
-        for (u32 value = 0; value < 128; ++value) {
-            std::array<bool, 7> predicates{true, false, true, false, true, false, true};
-            std::unordered_map<const IR::Inst*, u32> values;
-            const auto get = [&](const IR::Value& v) -> u32 {
-                if (!v.IsImmediate()) return values.at(v.Inst());
-                return v.Type() == IR::Type::U1 ? static_cast<u32>(v.U1()) : v.U32();
-            };
-            for (const auto& inst : block.Instructions()) {
-                const auto arg = [&](size_t i) { return get(inst.Arg(i)); };
-                switch (inst.GetOpcode()) {
-                case IR::Opcode::GetRegister:
-                    REQUIRE(static_cast<u32>(inst.Arg(0).Reg()) == 5);
-                    values[&inst] = value << (byte * 8); break;
-                case IR::Opcode::GetPred: values[&inst] = predicates[static_cast<u32>(inst.Arg(0).Pred())]; break;
-                case IR::Opcode::SetPred: predicates[static_cast<u32>(inst.Arg(0).Pred())] = arg(1) != 0; break;
-                case IR::Opcode::BitFieldUExtract: values[&inst] = (arg(0) >> arg(1)) & ((1U << arg(2)) - 1); break;
-                case IR::Opcode::GetZeroFromOp: values[&inst] = arg(0) == 0; break;
-                case IR::Opcode::IEqual: values[&inst] = arg(0) == arg(1); break;
-                case IR::Opcode::LogicalNot: values[&inst] = !arg(0); break;
-                case IR::Opcode::SelectU1: values[&inst] = arg(0) ? arg(1) : arg(2); break;
-                default: FAIL("Unexpected R2P IR " << IR::NameOf(inst.GetOpcode()));
-                }
-            }
-            for (u32 bit = 0; bit < 7; ++bit)
-                REQUIRE(predicates[bit] == (bit < 3 ? bool(value & (1U << bit)) : bool(bit % 2 == 0)));
-        }
-    }
-    auto invalid = source;
-    invalid[0].words[2] = 1;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(invalid));
-}
-
-TEST_CASE("Native 2D explicit LOD sampling preserves its paired coordinates", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0xc007b60, 0x30800812, 0x59e070b, 0x100f4200}}, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.TEXS(lowered.instructions[0]);
-    u32 samples = 0;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() != IR::Opcode::BoundImageSampleExplicitLod) continue;
-        ++samples;
-        REQUIRE(inst.Flags<IR::TextureInstInfo>().type == Shader::TextureType::Color2D);
-        const auto* coords = inst.Arg(1).Inst();
-        REQUIRE(coords->GetOpcode() == IR::Opcode::CompositeConstructF32x2);
-        for (u32 i = 0; i < 2; ++i)
-            REQUIRE(coords->Arg(i).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{12 + i});
-        REQUIRE(inst.Arg(2).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{18});
-    }
-    REQUIRE(samples == 1);
-}
-
-namespace {
-using Warp = std::array<u32, 32>;
-void ExecuteNativeWarp(IR::Block& block, u32 active,
-                       std::array<std::array<u32, 256>, 32>& registers,
-                       std::array<std::array<bool, 7>, 32>& predicates) {
-    std::unordered_map<const IR::Inst*, Warp> values;
-    const auto get = [&](const IR::Value& value) -> Warp {
-        if (!value.IsImmediate()) return values.at(value.Inst());
-        Warp result;
-        result.fill(value.Type() == IR::Type::U1 ? static_cast<u32>(value.U1()) : value.U32());
-        return result;
-    };
-    for (const auto& inst : block.Instructions()) {
-        std::array<Warp, 4> args{};
-        for (size_t i = 0; i < inst.NumArgs(); ++i) {
-            if (inst.Arg(i).Type() != IR::Type::Reg && inst.Arg(i).Type() != IR::Type::Pred)
-                args[i] = get(inst.Arg(i));
-        }
-        Warp result{};
-        const auto op = inst.GetOpcode();
-        if (op == IR::Opcode::SubgroupBallot || op == IR::Opcode::VoteAny || op == IR::Opcode::VoteAll) {
-            u32 mask = 0;
-            for (u32 lane = 0; lane < 32; ++lane)
-                if ((active & (1U << lane)) && args[0][lane]) mask |= 1U << lane;
-            result.fill(op == IR::Opcode::SubgroupBallot ? mask : op == IR::Opcode::VoteAny ? mask != 0 : mask == active);
-        } else {
-            for (u32 lane = 0; lane < 32; ++lane) {
-                const auto a = args[0][lane], b = args[1][lane], c = args[2][lane];
-                switch (op) {
-                case IR::Opcode::GetRegister: result[lane] = static_cast<u32>(inst.Arg(0).Reg()) == 255 ? 0 : registers[lane][static_cast<u32>(inst.Arg(0).Reg())]; break;
-                case IR::Opcode::SetRegister:
-                    if ((active & (1U << lane)) && static_cast<u32>(inst.Arg(0).Reg()) != 255) registers[lane][static_cast<u32>(inst.Arg(0).Reg())] = b;
-                    break;
-                case IR::Opcode::GetPred: result[lane] = predicates[lane][static_cast<u32>(inst.Arg(0).Pred())]; break;
-                case IR::Opcode::SetPred:
-                    if (active & (1U << lane)) predicates[lane][static_cast<u32>(inst.Arg(0).Pred())] = b != 0;
-                    break;
-                case IR::Opcode::BitCastF32U32: case IR::Opcode::BitCastU32F32: result[lane] = a; break;
-                case IR::Opcode::SelectU32: case IR::Opcode::SelectU1: result[lane] = a ? b : c; break;
-                case IR::Opcode::BitwiseAnd32: result[lane] = a & b; break;
-                case IR::Opcode::BitwiseOr32: result[lane] = a | b; break;
-                case IR::Opcode::ShiftRightLogical32: result[lane] = b < 32 ? a >> b : 0; break;
-                case IR::Opcode::ShiftLeftLogical32: result[lane] = b < 32 ? a << b : 0; break;
-                case IR::Opcode::INeg32: result[lane] = 0U - a; break;
-                case IR::Opcode::IAdd32: result[lane] = a + b; break;
-                case IR::Opcode::FindUMsb32: result[lane] = a ? 31U - std::countl_zero(a) : ~0U; break;
-                case IR::Opcode::BitFieldUExtract: result[lane] = (a >> b) & ((1U << c) - 1); break;
-                case IR::Opcode::ULessThan: result[lane] = a < b; break;
-                case IR::Opcode::SLessThan: result[lane] = static_cast<s32>(a) < static_cast<s32>(b); break;
-                case IR::Opcode::IEqual: result[lane] = a == b; break;
-                case IR::Opcode::GetZeroFromOp: result[lane] = a == 0; break;
-                case IR::Opcode::LogicalAnd: result[lane] = a && b; break;
-                case IR::Opcode::LogicalNot: result[lane] = !a; break;
-                case IR::Opcode::GetInBoundsFromOp: result[lane] = get(inst.Arg(0).Inst()->Arg(1))[lane] <= 31; break;
-                case IR::Opcode::FSwizzleAdd: {
-                    const u32 mode = (c >> ((lane & 3) * 2)) & 3;
-                    const float x = std::bit_cast<float>(a), y = std::bit_cast<float>(b);
-                    const float ma = mode == 0 || mode == 2 ? -1.0f : mode == 1 ? 1.0f : 0.0f;
-                    const float mb = mode == 0 || mode == 1 ? -1.0f : mode == 2 ? 1.0f : 0.0f;
-                    result[lane] = std::bit_cast<u32>(x * ma + y * mb);
-                    break;
-                }
-                case IR::Opcode::ShuffleButterfly: result[lane] = args[0][lane ^ b]; break;
-                case IR::Opcode::ShuffleIndex: result[lane] = (active & (1U << (b & 31))) ? args[0][b & 31] : 0xdeadbeefU; break;
-                default: FAIL("Unexpected warp-uniform IR " << IR::NameOf(op));
-                }
-            }
-        }
-        values.emplace(&inst, result);
-    }
-}
-}
-
-TEST_CASE("Native warp uniform transfers use the first selected active lane and preserve predicates", "[native-shader]") {
-    const u32 operation = GENERATE(0U, 1U, 2U, 3U, 4U, 5U, 6U, 7U);
-    const Native instruction = operation < 2
-        ? Native{{operation == 0 ? 0x020513c2U : 0x020593c2U, 0, 0x000e0000, 0}}
-        : operation < 4 ? Native{{0x003f7886, 0, operation == 2 ? 0x00800100U : 0x00800000U, 0}}
-        : Native{{0x0000781c, 0, operation == 4 ? 0x03f2f008U : operation == 5 ? 0x03f0f070U : operation == 6 ? 0x03f0e170U : 0x00f41070U, 0}};
-    const std::array<Native, 2> source{{instruction, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(source);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::PSETP: visitor.PSETP(word); break;
-        case Opcode::SHR_imm: visitor.SHR_imm(word); break;
-        case Opcode::SHL_imm: visitor.SHL_imm(word); break;
-        case Opcode::MOV32I: visitor.MOV32I(word); break;
-        case Opcode::P2R_imm: visitor.P2R_imm(word); break;
-        case Opcode::R2P_imm: visitor.R2P_imm(word); break;
-        case Opcode::VOTE: visitor.VOTE(word); break;
-        case Opcode::IADD_reg: visitor.IADD_reg(word); break;
-        case Opcode::LOP_reg: visitor.LOP_reg(word); break;
-        case Opcode::FLO_reg: visitor.FLO_reg(word); break;
-        case Opcode::SHFL: visitor.SHFL(word); break;
-        case Opcode::SEL_reg: visitor.SEL_reg(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected warp-uniform lowering");
-        }
-    }
-    using Warp = std::array<u32, 32>;
-    for (const u32 active : {1U, 0x80000000U, 0x80000001U, 0x55555555U, 0xffffffffU}) {
-        for (const u32 selected : {0U, 1U, 0x80000000U, 0xaaaaaaaaU, 0xffffffffU}) {
-            std::array<std::array<u32, 256>, 32> registers{};
-            std::array<std::array<bool, 7>, 32> predicates{};
-            for (u32 lane = 0; lane < 32; ++lane) {
-                registers[lane][2] = 100 + lane * 17;
-                registers[lane][221] = 0xcafebeef;
-                registers[lane][239] = (selected & (1U << lane)) ? 64 : 0;
-                for (u32 p = 0; p < 7; ++p) predicates[lane][p] = ((lane + p) & 1) != 0;
-                predicates[lane][1] = ((selected & (1U << lane)) != 0) != (operation == 4);
-            }
-            const auto original_predicates = predicates;
-            ExecuteNativeWarp(block, active, registers, predicates);
-            const u32 ballot = active & (operation == 1 ? ~selected : selected);
-            const u32 first = ballot ? std::countr_zero(ballot) : 0;
-            for (u32 lane = 0; lane < 32; ++lane) {
-                if (!(active & (1U << lane))) continue;
-                auto expected_predicates = original_predicates[lane];
-                if (operation == 7) expected_predicates[2] = original_predicates[lane][1] && original_predicates[lane][0];
-                if (operation == 4) expected_predicates[1] = (selected & (1U << lane)) != 0;
-                if (operation == 5 || operation == 6) expected_predicates[0] = operation == 5;
-                REQUIRE(predicates[lane] == expected_predicates);
-                if (operation < 2) REQUIRE(registers[lane][221] == (ballot ? 100 + first * 17 : 0xcafebeef));
-                else if (operation < 4) REQUIRE(registers[lane][239] == (operation == 2 ? (ballot ? 64U : 0U) : (ballot == active ? 64U : 0U)));
-            }
-        }
-    }
-}
-
-TEST_CASE("Native uniform 64-bit loads populate consecutive registers", "[native-shader]") {
-    const std::array<Native, 6> input{{
-        {{0x00057ab9, 0x00c00000, 0x00000800, 0}},
-        {{0x05067abb, 0x00c00100, 0x08000a00, 0}},
-        {{0x00007c02, 6, 0x08000f00, 0}},
-        {{0x00017c02, 7, 0x08000f00, 0}},
-        {{0xff007322, 0x00007000, 0x000004ff, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (const auto word : lowered.instructions) {
-        using Shader::Maxwell::Opcode;
-        switch (Shader::Maxwell::Decode(word)) {
-        case Opcode::MOV_cbuf: visitor.MOV_cbuf(word); break;
-        case Opcode::MOV_reg: visitor.MOV_reg(word); break;
-        case Opcode::LDC: visitor.LDC(word); break;
-        case Opcode::AST: visitor.AST(word); break;
-        case Opcode::EXIT: break;
-        default: FAIL("Unexpected uniform pair lowering");
-        }
-    }
-    REQUIRE(EvaluateVertex(block, {}, {std::bit_cast<float>(0U), 3, 7, 9}) == std::array<float, 2>{3, 7});
-}
-
-TEST_CASE("Native texture dimension queries retain mip input and width-height outputs", "[native-shader]") {
-    const std::array<Native, 2> source{{{{0x03027b6f, 0x00800800, 0x000003ff, 0}}, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(source);
-    REQUIRE(lowered);
-    REQUIRE(lowered.required_texture_buffer == 2);
-    REQUIRE(Shader::Maxwell::Decode(lowered.instructions[0]) == Shader::Maxwell::Opcode::TXQ);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.TXQ(lowered.instructions[0]);
-    std::vector<std::pair<u32, u32>> outputs;
-    u32 queries = 0;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageQueryDimensions) {
-            ++queries;
-            REQUIRE(inst.Arg(0).U32() == 32);
-            REQUIRE(inst.Arg(1).Inst()->Arg(0).Reg() == IR::Reg{3});
-            REQUIRE(inst.Arg(2).U1());
-        }
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) {
-            const auto* extract = inst.Arg(1).Inst();
-            REQUIRE(extract->GetOpcode() == IR::Opcode::CompositeExtractU32x4);
-            outputs.emplace_back(static_cast<u32>(inst.Arg(0).Reg()), extract->Arg(1).U32());
-        }
-    }
-    REQUIRE(queries == 1);
-    REQUIRE(outputs == std::vector<std::pair<u32, u32>>{{2, 0}, {3, 1}});
-    auto invalid = source;
-    invalid[0].words[1] |= 1U << 30;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(invalid));
-}
-
-TEST_CASE("Native scalar global stores retain both uniform address words and source data", "[native-shader]") {
-    std::array<Native, 2> input{{
-        {{0xff007986, 7, 0x0c10a904, 0}},
-        VertexTransform.back(),
-    }};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(Shader::Maxwell::Decode(lowered.instructions.front()) == Shader::Maxwell::Opcode::STG);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.STG(lowered.instructions.front());
-    std::vector<u32> registers;
-    u32 stores{};
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::GetRegister)
-            registers.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-        if (inst.GetOpcode() == IR::Opcode::CompositeConstructU32x2) {
-            REQUIRE(inst.Arg(0).Inst()->Arg(0).Reg() == IR::Reg::R220);
-            REQUIRE(inst.Arg(1).Inst()->Arg(0).Reg() == IR::Reg::R221);
-        }
-        if (inst.GetOpcode() == IR::Opcode::WriteGlobal32) {
-            REQUIRE(inst.Arg(1).Inst()->Arg(0).Reg() == IR::Reg::R7);
-            ++stores;
-        }
-    }
-    std::sort(registers.begin(), registers.end());
-    REQUIRE(registers == std::vector<u32>{7, 220, 221});
-    REQUIRE(stores == 1);
-    input[0].words[2] |= 1; // An unaligned uniform address pair is unsupported.
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(input));
-    input[0].words[2] = 0x0c10ab04; // A different store width must not become scalar.
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(input));
-}
-
-TEST_CASE("Captured native compute compiles with shared memory and atomics", "[.native-compute-captured]") {
-    const char* directory = std::getenv("EDEN_NATIVE_SHADER_FIXTURES");
-    REQUIRE(directory != nullptr);
-    std::ifstream file(std::filesystem::path{directory} / "compute.source.bin", std::ios::binary | std::ios::ate);
-    REQUIRE(file.good());
-    const auto size = static_cast<size_t>(file.tellg());
-    REQUIRE(size % 16 == 0);
-    std::vector<Native> input(size / 16);
-    file.seekg(0);
-    file.read(reinterpret_cast<char*>(input.data()), size);
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    INFO("offset=" << lowered.error_offset << " error=" << lowered.error);
-    REQUIRE(lowered);
-    std::vector<u64> code(0x50 / 8);
-    for (u64 word : lowered.instructions) {
-        if ((code.size() * 8) % 32 == 0) code.push_back(0);
-        code.push_back(word);
-    }
-    code.push_back(0);
-    Shader::Ampere::AppendNativeAddressMap(code, lowered.source_instruction_offsets);
-    std::array<u32, 64> qmd{};
-    std::ifstream descriptor(std::filesystem::path{directory} / "compute.qmd.bin", std::ios::binary);
-    REQUIRE(descriptor.good());
-    descriptor.read(reinterpret_cast<char*>(qmd.data()), sizeof(qmd));
-    const std::array<u32, 3> group{qmd[18] >> 16, qmd[19] & 0xffff, qmd[19] >> 16};
-    const u32 shared_size = qmd[17] & 0x3ffff;
-    class ComputeFixtureEnvironment final : public EmptyEnvironment {
-    public:
-        ComputeFixtureEnvironment(const std::vector<u64>& code_, u32 shared_, std::array<u32, 3> group_, Shader::TextureType texture_)
-            : code{code_}, shared{shared_}, group{group_}, texture{texture_} {
-            stage = Shader::Stage::Compute;
-            start_address = 0x50;
-            is_proprietary_driver = true;
-        }
-        u64 ReadInstruction(u32 address) override { return code.at(address / 8); }
-        u32 TranslateProgramAddress(u32 address) const override {
-            const auto translated = Shader::Ampere::NativeProgramAddress(code, address);
-            if (!translated) throw std::logic_error("invalid compute branch target");
-            return *translated;
-        }
-        u32 ReadCbufValue(u32, u32) override { return 0; }
-        u32 TextureBoundBuffer() const override { return 0; }
-        u32 SharedMemorySize() const override { return shared; }
-        std::array<u32, 3> WorkgroupSize() const override { return group; }
-        Shader::TextureType ReadTextureType(u32) override { return texture; }
-        const std::vector<u64>& code;
-        u32 shared;
-        std::array<u32, 3> group;
-        Shader::TextureType texture;
-    } env{code, shared_size, group,
-        std::any_of(input.begin(), input.end(), [](const auto& instruction) {
-            return instruction.Bits(0, 12) == 0xb66 && instruction.Bits(61, 3) == 2;
-        }) ? Shader::TextureType::Color3D : std::any_of(input.begin(), input.end(), [](const auto& instruction) {
-            return (instruction.Bits(0, 12) == 0xb66 && instruction.Bits(61, 3) == 1) ||
-                   instruction.Bits(0, 12) == 0xb97 || instruction.Bits(0, 12) == 0xb9b;
-        }) ? Shader::TextureType::Color2D : Shader::TextureType::Color1D};
-    Shader::ObjectPool<Shader::Maxwell::Flow::Block> flow_pool;
-    Shader::ObjectPool<IR::Inst> inst_pool;
-    Shader::ObjectPool<IR::Block> block_pool;
-    Shader::Maxwell::Flow::CFG cfg{env, flow_pool, env.StartAddress()};
-    Shader::HostTranslateInfo host;
-    host.support_int64 = true;
-    host.support_float64 = true;
-    host.support_float16 = true;
-    host.support_conditional_barrier = true;
-    const auto program = Shader::Maxwell::TranslateProgram(inst_pool, block_pool, env, cfg, host);
-    REQUIRE(program.stage == Shader::Stage::Compute);
-    REQUIRE_FALSE(program.blocks.empty());
-    u32 barriers{}, shared_atomics{}, global_atomics{}, stores{}, image_stores{}, image_loads{};
-    for (const auto* block : program.blocks) for (const auto& inst : block->Instructions()) {
-        image_loads += inst.GetOpcode() == IR::Opcode::ImageRead || inst.GetOpcode() == IR::Opcode::BoundImageRead;
-        barriers += inst.GetOpcode() == IR::Opcode::Barrier;
-        shared_atomics += inst.GetOpcode() == IR::Opcode::SharedAtomicIAdd32;
-        global_atomics += inst.GetOpcode() == IR::Opcode::GlobalAtomicIAdd32 || inst.GetOpcode() == IR::Opcode::StorageAtomicIAdd32;
-        stores += inst.GetOpcode() == IR::Opcode::WriteGlobal32 || inst.GetOpcode() == IR::Opcode::WriteStorage32;
-        image_stores += inst.GetOpcode() == IR::Opcode::ImageWrite || inst.GetOpcode() == IR::Opcode::BoundImageWrite;
-    }
-    const bool surface = std::any_of(input.begin(), input.end(), [](const auto& instruction) { return instruction.Bits(0, 12) == 0xb9b; });
-    if (surface) {
-        const auto expected_barriers = std::count_if(input.begin(), input.end(), [](const auto& instruction) {
-            return instruction.Bits(0, 12) == 0xb1d;
-        });
-        REQUIRE(barriers >= expected_barriers);
-        REQUIRE(image_stores >= 1);
-        const auto expected_loads = std::count_if(input.begin(), input.end(), [](const auto& instruction) {
-            return instruction.Bits(0, 12) == 0xb97;
-        });
-        REQUIRE(image_loads >= expected_loads);
-    } else if (std::any_of(input.begin(), input.end(), [](const auto& instruction) { return instruction.Bits(0, 12) == 0xf8c; })) {
-        REQUIRE(barriers >= 2);
-        REQUIRE(shared_atomics >= 4);
-        REQUIRE(global_atomics >= 2);
-    } else if (shared_size) {
-        REQUIRE(barriers >= 5);
-        REQUIRE(shared_atomics >= 2);
-        REQUIRE(global_atomics >= 1);
-        REQUIRE(stores >= 8);
-    } else {
-        REQUIRE(barriers == 0);
-        REQUIRE(stores >= 4);
-    }
-}
-
-namespace {
-double DecodeTestHalf(u16 bits) {
-    const u32 exponent = (bits >> 10) & 31, mantissa = bits & 1023;
-    const double value = exponent == 31 ? (mantissa ? std::numeric_limits<double>::quiet_NaN()
-                                                   : std::numeric_limits<double>::infinity())
-                        : exponent == 0 ? std::ldexp(static_cast<double>(mantissa), -24)
-                                        : std::ldexp(static_cast<double>(1024 + mantissa), static_cast<int>(exponent) - 25);
-    return (bits & 0x8000) ? -value : value;
-}
-u16 EncodeTestHalf(double value) {
-    const u16 sign = std::signbit(value) ? 0x8000 : 0;
-    value = std::abs(value);
-    if (std::isnan(value)) return 0xfe01; // Deliberately noncanonical: ReLU must canonicalize it.
-    if (value >= 65520) return sign | 0x7c00;
-    if (value < std::ldexp(1.0, -14))
-        return sign | static_cast<u16>(std::nearbyint(std::ldexp(value, 24)));
-    int exponent{};
-    std::frexp(value, &exponent);
-    --exponent;
-    u32 mantissa = static_cast<u32>(std::nearbyint(std::ldexp(value, 10 - exponent)));
-    if (mantissa == 2048) { ++exponent; mantissa = 1024; }
-    return sign | static_cast<u16>(((exponent + 15) << 10) | (mantissa - 1024));
-}
-struct ScalarNativeMachine {
-    std::array<u32, 256> regs{};
-    std::array<bool, 7> predicates{};
-    std::unordered_map<u64, u32> constants, global, shared;
-    u32 workgroup_barriers{}, device_barriers{};
-    void Execute(IR::Block& block) {
-        std::unordered_map<const IR::Inst*, u64> values;
-        bool carry{}, zero{}, sign{}, overflow{};
-        const auto get = [&](const IR::Value& value) -> u64 {
-            if (!value.IsImmediate()) return values.at(value.Inst());
-            if (value.Type() == IR::Type::U1) return value.U1();
-            if (value.Type() == IR::Type::F16 || value.Type() == IR::Type::U16) return value.U16();
-            if (value.Type() == IR::Type::U64) return value.U64();
-            if (value.Type() == IR::Type::F32) return std::bit_cast<u32>(value.F32());
-            return value.U32();
-        };
-        for (const auto& inst : block.Instructions()) {
-            const auto arg = [&](size_t i) { return get(inst.Arg(i)); };
-            u64 result{};
-            switch (inst.GetOpcode()) {
-            case IR::Opcode::BitCastF32U32: case IR::Opcode::BitCastU32F32: result = arg(0); break;
-            case IR::Opcode::UnpackFloat2x16: result = (arg(0) & 0xffff) | ((arg(0) >> 16) << 32); break;
-            case IR::Opcode::PackFloat2x16: result = (arg(0) & 0xffff) | ((arg(0) >> 32) << 16); break;
-            case IR::Opcode::CompositeConstructF16x2: result = arg(0) | (arg(1) << 32); break;
-            case IR::Opcode::CompositeExtractF16x2: result = (arg(0) >> (arg(1) * 32)) & 0xffff; break;
-            case IR::Opcode::FPNeg16: result = arg(0) ^ 0x8000; break;
-            case IR::Opcode::FPAbs16: result = arg(0) & 0x7fff; break;
-            case IR::Opcode::FPFma16: result = EncodeTestHalf(std::fma(DecodeTestHalf(static_cast<u16>(arg(0))),
-                DecodeTestHalf(static_cast<u16>(arg(1))), DecodeTestHalf(static_cast<u16>(arg(2))))); break;
-            case IR::Opcode::FPFloor32: result = std::bit_cast<u32>(std::floor(std::bit_cast<float>(static_cast<u32>(arg(0))))); break;
-            case IR::Opcode::ConvertF32F16: result = std::bit_cast<u32>(static_cast<float>(DecodeTestHalf(static_cast<u16>(arg(0))))); break;
-            case IR::Opcode::FPOrdEqual32: result = std::bit_cast<float>(static_cast<u32>(arg(0))) == std::bit_cast<float>(static_cast<u32>(arg(1))); break;
-            case IR::Opcode::FPOrdGreaterThanEqual32: result = std::bit_cast<float>(static_cast<u32>(arg(0))) >= std::bit_cast<float>(static_cast<u32>(arg(1))); break;
-            case IR::Opcode::FPMax32: result = std::bit_cast<u32>(std::fmax(std::bit_cast<float>(static_cast<u32>(arg(0))), std::bit_cast<float>(static_cast<u32>(arg(1))))); break;
-            case IR::Opcode::FPMin32: result = std::bit_cast<u32>(std::fmin(std::bit_cast<float>(static_cast<u32>(arg(0))), std::bit_cast<float>(static_cast<u32>(arg(1))))); break;
-            case IR::Opcode::ConvertU32F32: result = static_cast<u32>(std::bit_cast<float>(static_cast<u32>(arg(0)))); break;
-            case IR::Opcode::FPTrunc32: result = std::bit_cast<u32>(std::trunc(std::bit_cast<float>(static_cast<u32>(arg(0))))); break;
-            case IR::Opcode::FPNeg32: result = arg(0) ^ 0x80000000U; break;
-            case IR::Opcode::FPAbs32: result = arg(0) & 0x7fffffffU; break;
-            case IR::Opcode::ConvertF16F32: result = EncodeTestHalf(std::bit_cast<float>(static_cast<u32>(arg(0)))); break;
-            case IR::Opcode::FPRoundEven32: result = std::bit_cast<u32>(std::nearbyint(std::bit_cast<float>(static_cast<u32>(arg(0))))); break;
-            case IR::Opcode::FPIsNan32: result = std::isnan(std::bit_cast<float>(static_cast<u32>(arg(0)))); break;
-            case IR::Opcode::FPClamp32: result = std::bit_cast<u32>(std::clamp(std::bit_cast<float>(static_cast<u32>(arg(0))), std::bit_cast<float>(static_cast<u32>(arg(1))), std::bit_cast<float>(static_cast<u32>(arg(2))))); break;
-            case IR::Opcode::ConvertS32F32: {
-                const float value = std::bit_cast<float>(static_cast<u32>(arg(0)));
-                result = std::isnan(value) ? 0x87654321U : static_cast<u32>(static_cast<s32>(value));
-                break;
-            }
-            case IR::Opcode::GetRegister: result = inst.Arg(0).Reg() == IR::Reg::RZ ? 0 : regs[static_cast<u32>(inst.Arg(0).Reg())]; break;
-            case IR::Opcode::SetRegister: if (inst.Arg(0).Reg() != IR::Reg::RZ) regs[static_cast<u32>(inst.Arg(0).Reg())] = static_cast<u32>(arg(1)); break;
-            case IR::Opcode::GetPred: result = predicates[static_cast<u32>(inst.Arg(0).Pred())]; break;
-            case IR::Opcode::SetPred: predicates[static_cast<u32>(inst.Arg(0).Pred())] = arg(1) != 0; break;
-            case IR::Opcode::IAdd32: result = static_cast<u32>(arg(0) + arg(1)); break;
-            case IR::Opcode::ISub32: result = static_cast<u32>(arg(0) - arg(1)); break;
-            case IR::Opcode::IMul32: result = static_cast<u32>(arg(0) * arg(1)); break;
-            case IR::Opcode::IAdd64: result = arg(0) + arg(1); break;
-            case IR::Opcode::UMax32: result = std::max(arg(0), arg(1)); break;
-            case IR::Opcode::UMin32: result = std::min(arg(0), arg(1)); break;
-            case IR::Opcode::FindUMsb32: result = arg(0) ? 31U - std::countl_zero(static_cast<u32>(arg(0))) : ~0U; break;
-            case IR::Opcode::BitReverse32: {
-                const u32 source = static_cast<u32>(arg(0));
-                for (u32 bit = 0; bit < 32; ++bit) result |= u64{(source >> bit) & 1U} << (31 - bit);
-                break;
-            }
-            case IR::Opcode::ShiftLeftLogical64: result = arg(1) < 64 ? arg(0) << arg(1) : 0; break;
-            case IR::Opcode::ShiftRightLogical64: result = arg(1) < 64 ? arg(0) >> arg(1) : 0; break;
-            case IR::Opcode::INeg32: result = 0U - static_cast<u32>(arg(0)); break;
-            case IR::Opcode::ShiftLeftLogical32: result = arg(1) < 32 ? static_cast<u32>(arg(0) << arg(1)) : 0; break;
-            case IR::Opcode::ShiftRightArithmetic32: result = static_cast<u32>(static_cast<s32>(arg(0)) >> std::min<u64>(arg(1), 31)); break;
-            case IR::Opcode::ShiftRightLogical32: result = arg(1) < 32 ? static_cast<u32>(arg(0)) >> arg(1) : 0; break;
-            case IR::Opcode::BitwiseAnd32: result = arg(0) & arg(1); break;
-            case IR::Opcode::BitwiseOr32: result = arg(0) | arg(1); break;
-            case IR::Opcode::BitwiseXor32: result = arg(0) ^ arg(1); break;
-            case IR::Opcode::BitwiseNot32: result = arg(0) ^ 0xffffffffULL; break;
-            case IR::Opcode::BitFieldUExtract: result = (arg(0) >> arg(1)) & ((u64{1} << arg(2)) - 1); break;
-            case IR::Opcode::BitFieldInsert: { const u64 mask = ((u64{1} << arg(3)) - 1) << arg(2); result = (arg(0) & ~mask) | ((arg(1) << arg(2)) & mask); break; }
-            case IR::Opcode::SelectF32: case IR::Opcode::SelectU32: case IR::Opcode::SelectU1: result = arg(0) ? arg(1) : arg(2); break;
-            case IR::Opcode::LogicalAnd: result = arg(0) && arg(1); break;
-            case IR::Opcode::LogicalOr: result = arg(0) || arg(1); break;
-            case IR::Opcode::LogicalNot: result = !arg(0); break;
-            case IR::Opcode::SMin32: result = static_cast<u32>(std::min(static_cast<s32>(arg(0)), static_cast<s32>(arg(1)))); break;
-            case IR::Opcode::SMax32: result = static_cast<u32>(std::max(static_cast<s32>(arg(0)), static_cast<s32>(arg(1)))); break;
-            case IR::Opcode::SLessThan: result = static_cast<s32>(arg(0)) < static_cast<s32>(arg(1)); break;
-            case IR::Opcode::ULessThan: result = arg(0) < arg(1); break;
-            case IR::Opcode::IEqual: result = arg(0) == arg(1); break;
-            case IR::Opcode::GetCFlag: result = carry; break;
-            case IR::Opcode::SetCFlag: carry = arg(0) != 0; break;
-            case IR::Opcode::GetZFlag: result = zero; break;
-            case IR::Opcode::SetZFlag: zero = arg(0) != 0; break;
-            case IR::Opcode::GetSFlag: result = sign; break;
-            case IR::Opcode::SetSFlag: sign = arg(0) != 0; break;
-            case IR::Opcode::GetOFlag: result = overflow; break;
-            case IR::Opcode::SetOFlag: overflow = arg(0) != 0; break;
-            case IR::Opcode::GetCarryFromOp: { const auto* sum = inst.Arg(0).Inst(); result = get(sum->Arg(0)) + get(sum->Arg(1)) > 0xffffffffULL; break; }
-            case IR::Opcode::GetZeroFromOp: result = arg(0) == 0; break;
-            case IR::Opcode::GetSignFromOp: result = (arg(0) & 0x80000000U) != 0; break;
-            case IR::Opcode::GetOverflowFromOp: { const auto* sum = inst.Arg(0).Inst(); result = ((get(sum->Arg(0)) ^ arg(0)) & (get(sum->Arg(1)) ^ arg(0)) & 0x80000000U) != 0; break; }
-            case IR::Opcode::GetCbufU32: result = constants.at((arg(0) << 32) | arg(1)); break;
-            case IR::Opcode::CompositeConstructU32x2: result = arg(0) | (arg(1) << 32); break;
-            case IR::Opcode::PackUint2x32: case IR::Opcode::UnpackUint2x32: result = arg(0); break;
-            case IR::Opcode::CompositeExtractU32x2: result = static_cast<u32>(arg(0) >> (arg(1) * 32)); break;
-            case IR::Opcode::WriteSharedU64: shared[arg(0)] = static_cast<u32>(arg(1)); shared[arg(0) + 4] = static_cast<u32>(arg(1) >> 32); break;
-            case IR::Opcode::LoadSharedU64: result = shared.at(arg(0)) | (u64{shared.at(arg(0) + 4)} << 32); break;
-            case IR::Opcode::WriteGlobal32: global[arg(0)] = static_cast<u32>(arg(1)); break;
-            case IR::Opcode::WriteSharedU32: shared[arg(0)] = static_cast<u32>(arg(1)); break;
-            case IR::Opcode::LoadSharedU32: result = shared.at(arg(0)); break;
-            case IR::Opcode::GlobalAtomicIAdd32: result = global.at(arg(0)); global[arg(0)] += static_cast<u32>(arg(1)); break;
-            case IR::Opcode::SharedAtomicIAdd32: result = shared.at(arg(0)); shared[arg(0)] += static_cast<u32>(arg(1)); break;
-            case IR::Opcode::Barrier: ++workgroup_barriers; break;
-            case IR::Opcode::DeviceMemoryBarrier: ++device_barriers; break;
-            default: FAIL("Unexpected scalar compute IR " << IR::NameOf(inst.GetOpcode()));
-            }
-            values[&inst] = result;
-        }
-    }
-};
-void TranslateScalarNative(std::span<const Native> input, IR::Block& block) {
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    INFO("offset=" << lowered.error_offset << " error=" << lowered.error);
-    REQUIRE(lowered);
-    EmptyEnvironment env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    for (u64 word : lowered.instructions) {
-        const auto opcode = Shader::Maxwell::Decode(word);
-        if (opcode == Shader::Maxwell::Opcode::EXIT) continue;
-        switch (opcode) {
-#define INST(name, cute, encode) case Shader::Maxwell::Opcode::name: visitor.name(word); break;
-#include "shader_recompiler/frontend/maxwell/maxwell.inc"
-#undef INST
-        }
-    }
-}
-}
-
-TEST_CASE("Native uniform comparisons and selects preserve independent predicate banks", "[native-shader]") {
-    const std::array<Native, 7> input{{
-        {{0x09057891, 0x40, 0x0f8e303f, 0}},
-        {{0x0500728c, 7, 0x0bf21070, 0}},
-        {{0x05057287, 7, 0x08800000, 0}},
-        {{0x05057290, 7, 0x0fffe13f, 0}},
-        {{0x0400728c, 6, 0x0bf01070, 0}},
-        {{0x04047287, 6, 0x08000000, 0}},
-        VertexTransform.back(),
-    }};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 width : {100U, 256U}) {
-        ScalarNativeMachine machine;
-        machine.regs[225] = 2;
-        machine.regs[223] = width;
-        machine.regs[220] = 40;
-        machine.regs[222] = 32;
-        for (u32 p = 0; p < 7; ++p) machine.predicates[p] = (p & 1) != 0;
-        const auto original = machine.predicates;
-        machine.Execute(block);
-        REQUIRE(machine.regs[221] == width - std::min(192U, width));
-        REQUIRE(machine.regs[220] == 32);
-        REQUIRE(((machine.regs[239] & 0x20) != 0) == (192U < width));
-        REQUIRE((machine.regs[239] & 0x40) == 0);
-        REQUIRE(machine.predicates == original);
-    }
-}
-
-TEST_CASE("Native global stores carry a register offset into the high address word", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x02007986, 9, 0x0810a906, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    ScalarNativeMachine machine;
-    machine.regs[222] = 0xfffffff0;
-    machine.regs[223] = 0x21;
-    machine.regs[2] = 0x30;
-    machine.regs[9] = 0xdeadbeef;
-    machine.Execute(block);
-    REQUIRE(machine.global == std::unordered_map<u64, u32>{{0x2200000020ULL, 0xdeadbeef}});
-}
-
-TEST_CASE("Native LEA predicate carry reaches the high pointer word", "[native-shader]") {
-    const std::array<Native, 4> input{{
-        {{0x00007a11, 0x800, 0x078010ff, 0}},
-        {{0xff017a10, 0x900, 0x007fe4ff, 0}},
-        {{0x00007386, 7, 0x0010a900, 0}},
-        VertexTransform.back(),
-    }};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 base : {0x100U, 0xfffffff0U}) {
-        ScalarNativeMachine machine;
-        machine.regs[0] = 8;
-        machine.regs[7] = 0x12345678;
-        machine.constants[0x20] = base;
-        machine.constants[0x24] = 0x21;
-        machine.Execute(block);
-        REQUIRE(machine.global == std::unordered_map<u64, u32>{{(u64{0x21} << 32) + base + 32, 0x12345678}});
-    }
-}
-
-TEST_CASE("Native shared atomics and barriers retain real shared-memory effects", "[native-shader]") {
-    const std::array<Native, 6> input{{
-        {{0x03007388, 0x407, 0x4800, 0}},
-        {{0x03097984, 0x400, 0x4800, 0}},
-        {{0xff0a738c, 0x7fc09, 0, 0}},
-        {{0x00007992, 0, 0x5000, 0}},
-        {{0x00007b1d, 0, 0, 0}},
-        VertexTransform.back(),
-    }};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    ScalarNativeMachine machine;
-    machine.regs[3] = 3;
-    machine.regs[7] = 5;
-    machine.shared[0x7fc] = 100;
-    machine.Execute(block);
-    REQUIRE(machine.shared.at(16) == 5);
-    REQUIRE(machine.shared.at(0x7fc) == 105);
-    REQUIRE(machine.regs[10] == 100);
-    REQUIRE(machine.workgroup_barriers == 1);
-    REQUIRE(machine.device_barriers == 1);
-}
-
-TEST_CASE("Native uniform high shifts and multiply operands retain numeric values", "[native-shader]") {
-    std::array<Native, 7> input{{
-        {{0x00057882, 123, 0, 0}},
-        {{0x3f047899, 5, 0x08010605, 0}},
-        {{0x05057899, 5, 0x0800063f, 0}},
-        {{0x01027c24, 5, 0x0f8e0202, 0}},
-        {{0x00007c17, 4, 0x0b800200, 0}},
-        {{0x000a7424, 4, 0x078e0205, 0}},
-        VertexTransform.back(),
-    }};
-    for (u32 value : {0U, 1U, 123U, 0x07ffffffU, 0xffffffffU}) {
-        input[0].words[1] = value;
-        Shader::ObjectPool<IR::Inst> pool;
-        IR::Block block{pool};
-        TranslateScalarNative(input, block);
-        ScalarNativeMachine machine;
-        machine.regs[0] = 5000;
-        machine.regs[1] = 11;
-        machine.regs[2] = 7;
-        machine.regs[5] = 3;
-        machine.Execute(block);
-        const u32 shifted = value << 5;
-        const u32 minimum = static_cast<u32>(std::min(5000, static_cast<s32>(shifted)));
-        REQUIRE(machine.regs[220] == shifted);
-        REQUIRE(machine.regs[221] == shifted);
-        REQUIRE(machine.regs[2] == 11U * shifted + 7);
-        REQUIRE(machine.regs[0] == minimum);
-        REQUIRE(machine.regs[10] == minimum * 3U + 4);
-    }
-}
-
-TEST_CASE("Native bit reversal and register shifts preserve FFT indexing", "[native-shader]") {
-    const std::array<Native, 6> input{{
-        {{0x00037301, 19, 0, 0}},
-        {{0x03017211, 255, 0x078f50ff, 0}},
-        {{0xff087219, 4, 0x00011613, 0}},
-        {{0x0f0f7219, 12, 0x00000eff, 0}},
-        {{0xff047224, 255, 0x078e0a0c, 0}},
-        VertexTransform.back(),
-    }};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 shift : {0U, 1U, 10U, 31U, 32U, 33U, 63U}) {
-        ScalarNativeMachine machine;
-        machine.regs[19] = 0x12345678;
-        machine.regs[4] = shift;
-        machine.regs[12] = shift;
-        machine.regs[15] = 0x9abcdef0;
-        machine.Execute(block);
-        REQUIRE(machine.regs[3] == 0x1e6a2c48);
-        REQUIRE(machine.regs[1] == (0x1e6a2c48U >> 22));
-        REQUIRE(machine.regs[8] == (shift < 32 ? 0x12345678U >> shift : 0));
-        REQUIRE(machine.regs[15] == (0x9abcdef0U << (shift & 31)));
-        REQUIRE(machine.regs[4] == 0U - shift);
-    }
-}
-
-TEST_CASE("Native paired shared values keep both words under scaled addressing", "[native-shader]") {
-    const std::array<Native, 3> input{{
-        {{0x13007388, 4, 0x8a00, 0}},
-        {{0x13027984, 0, 0x8a00, 0}},
-        VertexTransform.back(),
-    }};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    ScalarNativeMachine machine;
-    machine.regs[19] = 17;
-    machine.regs[4] = 0x12345678;
-    machine.regs[5] = 0x9abcdef0;
-    machine.Execute(block);
-    REQUIRE(machine.shared.at(17 * 8) == 0x12345678);
-    REQUIRE(machine.shared.at(17 * 8 + 4) == 0x9abcdef0);
-    REQUIRE(machine.regs[2] == 0x12345678);
-    REQUIRE(machine.regs[3] == 0x9abcdef0);
-}
-
-TEST_CASE("Native formatted surface stores retain coordinates channels and descriptor", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00007b9b, 0x60000a04, 0x00100f00, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 writes{};
-    for (const auto& inst : block.Instructions()) if (inst.GetOpcode() == IR::Opcode::BoundImageWrite) {
-        REQUIRE(inst.Arg(0).U32() == 40);
-        const auto info = inst.Flags<IR::TextureInstInfo>();
-        REQUIRE(info.type.Value() == Shader::TextureType::Color2D);
-        const auto* coordinates = inst.Arg(1).Inst();
-        REQUIRE(coordinates->Arg(0).Inst()->Arg(0).Reg() == IR::Reg::R0);
-        REQUIRE(coordinates->Arg(1).Inst()->Arg(0).Reg() == IR::Reg::R1);
-        const auto* color = inst.Arg(2).Inst();
-        for (u32 component = 0; component < 4; ++component)
-            REQUIRE(static_cast<u32>(color->Arg(component).Inst()->Arg(0).Reg()) == 4 + component);
-        ++writes;
-    }
-    REQUIRE(writes == 1);
-}
-
-TEST_CASE("Native predicated predicate copies retain their guard and source", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x0000281c, 0, 0x01f0f070, 0}}, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    const auto predicate = Shader::Maxwell::Instruction{lowered.instructions.front()}.Pred();
-    REQUIRE(predicate.index == 2);
-    REQUIRE_FALSE(predicate.negated);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (bool source : {false, true}) {
-        ScalarNativeMachine machine;
-        machine.predicates[3] = source;
-        machine.Execute(block);
-        REQUIRE(machine.predicates[0] == source);
-    }
-}
-
-TEST_CASE("Native NTZ nearest conversion rounds ties to even and clears NaNs", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00117305, 2, 0x00203100, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 rounds{};
-    for (const auto& inst : block.Instructions()) if (inst.GetOpcode() == IR::Opcode::FPRoundEven32) {
-        REQUIRE(inst.Flags<IR::FpControl>().fmz_mode == IR::FmzMode::None);
-        ++rounds;
-    }
-    REQUIRE(rounds == 1);
-    for (const auto [value, expected] : std::array<std::pair<float, s32>, 9>{{
-        {0.5f, 0}, {1.5f, 2}, {2.5f, 2}, {-0.5f, 0}, {-1.5f, -2}, {-2.5f, -2},
-        {0.9f, 1}, {-0.9f, -1}, {std::numeric_limits<float>::quiet_NaN(), 0},
-    }}) {
-        ScalarNativeMachine machine;
-        machine.regs[2] = std::bit_cast<u32>(value);
-        machine.Execute(block);
-        REQUIRE(machine.regs[17] == static_cast<u32>(expected));
-    }
-    auto unsupported = input;
-    unsupported[0].words[2] ^= 1U << 13;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(unsupported));
-}
-
-TEST_CASE("Native predicate packing merges only selected predicate bits", "[native-shader]") {
-    for (u32 mask : {0U, 8U, 16U, 0x55U, 0x7fU}) {
-        const std::array<Native, 2> input{{{{0x02137803, mask, 0, 0}}, VertexTransform.back()}};
-        Shader::ObjectPool<IR::Inst> pool;
-        IR::Block block{pool};
-        TranslateScalarNative(input, block);
-        for (u32 bits = 0; bits < 128; ++bits) {
-            ScalarNativeMachine machine;
-            machine.regs[2] = 0xa5a5a5a5U;
-            for (u32 i = 0; i < 7; ++i) machine.predicates[i] = (bits >> i) & 1;
-            const auto saved = machine.predicates;
-            machine.Execute(block);
-            REQUIRE(machine.regs[19] == ((0xa5a5a5a5U & ~mask) | (bits & mask)));
-            REQUIRE(machine.predicates == saved);
-        }
-    }
-}
-
-TEST_CASE("Native signed NTZ floor conversion rounds negative fractions down", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00237305, 0x24, 0x00207100, 0x000e2400}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (const auto [value, expected] : std::array<std::pair<float, s32>, 8>{{
-        {1.9f, 1}, {-1.1f, -2}, {-0.1f, -1}, {0.9f, 0},
-        {0.0f, 0}, {-2.0f, -2}, {12345.5f, 12345},
-        {std::numeric_limits<float>::quiet_NaN(), 0},
-    }}) {
-        ScalarNativeMachine machine;
-        machine.regs[36] = std::bit_cast<u32>(value);
-        machine.Execute(block);
-        REQUIRE(machine.regs[35] == static_cast<u32>(expected));
-    }
-}
-
-TEST_CASE("Native dependency waits retain the full six-bit pending-operation count", "[native-shader]") {
-    for (u32 count : {0U, 1U, 15U, 22U, 63U}) {
-        const std::array<Native, 2> input{{{{0x0000791a, 0xd000U | (count << 6), 0, 0}}, VertexTransform.back()}};
-        const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-        REQUIRE(lowered);
-        REQUIRE(lowered.instructions.size() == 1);
-    }
-    const std::array<Native, 2> unsupported{{{{0x0000791a, 0xc000, 0, 0}}, VertexTransform.back()}};
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(unsupported));
-}
-
-TEST_CASE("Native histogram warp match compares both address words and preserves predicates", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00ff73a1, 0, 0x00000200, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 active : {1U, 0x80000000U, 0x80000001U, 0x55555555U, 0xffffffffU}) {
-        for (u32 mismatch : {0U, 1U, 2U}) {
-            std::array<std::array<u32, 256>, 32> registers{};
-            std::array<std::array<bool, 7>, 32> predicates{};
-            const u32 first = std::countr_zero(active);
-            for (u32 lane = 0; lane < 32; ++lane) {
-                registers[lane][0] = 0xfffffff0U + (mismatch == 1 && lane != first ? 4 : 0);
-                registers[lane][1] = 0x21U + (mismatch == 2 && lane != first ? 1 : 0);
-                for (u32 p = 0; p < 7; ++p) predicates[lane][p] = ((lane + p) & 1) != 0;
-            }
-            const auto original = predicates;
-            ExecuteNativeWarp(block, active, registers, predicates);
-            for (u32 lane = 0; lane < 32; ++lane) {
-                auto expected = original[lane];
-                if (active & (1U << lane)) expected[0] = mismatch == 0 || std::popcount(active) == 1;
-                REQUIRE(predicates[lane] == expected);
-            }
-        }
-    }
-}
-
-TEST_CASE("Native histogram reduction sums only active lanes with unsigned wrap", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x030573c4, 0, 0x0000c000, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 active : {1U, 0x80000000U, 0x80000001U, 0x55555555U, 0xffffffffU}) {
-        std::array<std::array<u32, 256>, 32> registers{};
-        std::array<std::array<bool, 7>, 32> predicates{};
-        u32 sum = 0;
-        for (u32 lane = 0; lane < 32; ++lane) {
-            registers[lane][3] = 0xfffffff0U + lane * 17;
-            registers[lane][221] = 0xcafebeef;
-            if (active & (1U << lane)) sum += registers[lane][3];
-            for (u32 p = 0; p < 7; ++p) predicates[lane][p] = ((lane + p) & 1) != 0;
-        }
-        const auto original = predicates;
-        ExecuteNativeWarp(block, active, registers, predicates);
-        REQUIRE(predicates == original);
-        for (u32 lane = 0; lane < 32; ++lane)
-            REQUIRE(registers[lane][221] == ((active & (1U << lane)) ? sum : 0xcafebeef));
-    }
-}
-
-TEST_CASE("Native histogram pointer carry and global reduction retain the address and addend", "[native-shader]") {
-    const std::array<Native, 4> input{{
-        {{0x00007a10, 0x00001000, 0x07f1e0ff, 0}},
-        {{0xff017624, 0x00001100, 0x000e06ff, 0}},
-        {{0x0000798e, 3, 0x0010e100, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 low : {0U, 0xfffffff0U, 0xffffffffU}) {
-        ScalarNativeMachine machine;
-        machine.regs[0] = 32;
-        machine.regs[3] = 17;
-        machine.constants[0x40] = low;
-        machine.constants[0x44] = 0x21;
-        const u64 address = 0x2100000000ULL + low + 32;
-        machine.global[address] = 0xfffffff8U;
-        machine.Execute(block);
-        REQUIRE(machine.regs[0] == static_cast<u32>(address));
-        REQUIRE(machine.regs[1] == address >> 32);
-        REQUIRE(machine.predicates[0] == (low > 0xffffffdfU));
-        REQUIRE(machine.global == std::unordered_map<u64, u32>{{address, 9}});
-    }
-}
-
-TEST_CASE("Native histogram shared increment scales its address and increments once", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x03ff7f8c, 0, 0x0d00403f, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    ScalarNativeMachine machine;
-    machine.regs[3] = 63;
-    machine.shared[252] = 0xffffffffU;
-    machine.Execute(block);
-    REQUIRE(machine.shared == std::unordered_map<u64, u32>{{252, 0}});
-}
-
-TEST_CASE("Native histogram uniform leading bit and comparison select the highest active lane", "[native-shader]") {
-    const std::array<Native, 3> input{{{{0x000472bd, 4, 0x080e0000, 0}},
-        {{0x02007c0c, 4, 0x0bf02070, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 mask : {1U, 0x80000000U, 0x55555555U, 0xffffffffU}) {
-        for (u32 lane = 0; lane < 32; ++lane) {
-            ScalarNativeMachine machine;
-            machine.regs[220] = mask;
-            machine.regs[2] = lane;
-            machine.Execute(block);
-            REQUIRE(machine.regs[220] == 31U - std::countl_zero(mask));
-            REQUIRE(machine.predicates[0] == (lane == 31U - std::countl_zero(mask)));
-        }
-    }
-}
-
-TEST_CASE("Native formatted surface loads retain red data coordinates descriptor and guard", "[native-shader]") {
-    const Native instruction = GENERATE(Native{{0x400a0b97, 0x60001200, 0x001e0100, 0}},
-                                        Native{{0x12250b97, 0x60001200, 0x001e0100, 0}});
-    const std::array<Native, 2> input{{instruction, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(lowered.required_texture_buffer == 0);
-    const auto guard = Shader::Maxwell::Instruction{lowered.instructions.front()}.Pred();
-    REQUIRE(guard.index == 0);
-    REQUIRE_FALSE(guard.negated);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 loads{}, writes{};
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageRead) {
-            REQUIRE(inst.Arg(0).U32() == 0x12 * 4);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type.Value() == Shader::TextureType::Color2D);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(static_cast<u32>(coords->Arg(0).Inst()->Arg(0).Reg()) == instruction.Bits(24, 8));
-            REQUIRE(static_cast<u32>(coords->Arg(1).Inst()->Arg(0).Reg()) == instruction.Bits(24, 8) + 1);
-            ++loads;
-        }
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) {
-            REQUIRE(static_cast<u32>(inst.Arg(0).Reg()) == instruction.Bits(16, 8));
-            const auto* red = inst.Arg(1).Inst();
-            REQUIRE(red->GetOpcode() == IR::Opcode::CompositeExtractU32x4);
-            REQUIRE(red->Arg(1).U32() == 0);
-            REQUIRE(red->Arg(0).Inst()->GetOpcode() == IR::Opcode::BoundImageRead);
-            ++writes;
-        }
-    }
-    REQUIRE(loads == 1);
-    REQUIRE(writes == 1);
-    auto invalid = input;
-    invalid[0].words[2] ^= 0x200; // Reject other channel masks until implemented.
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(invalid));
-}
-
-TEST_CASE("Native volume texel fetch preserves XYZ LOD descriptor and split RGBA outputs", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00087b66, 0x50000a02, 0x049e0f0a, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 fetches{};
-    std::vector<u32> writes;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageFetch) {
-            REQUIRE(inst.Arg(0).U32() == 40);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type.Value() == Shader::TextureType::Color3D);
-            const auto* coords = inst.Arg(1).Inst();
-            for (u32 i = 0; i < 3; ++i)
-                REQUIRE(static_cast<u32>(coords->Arg(i).Inst()->Arg(0).Reg()) == i);
-            REQUIRE(inst.Arg(3).U32() == 0);
-            ++fetches;
-        }
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) {
-            writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-            const auto* extract = inst.Arg(1).Inst()->Arg(0).Inst();
-            REQUIRE(extract->GetOpcode() == IR::Opcode::CompositeExtractF32x4);
-            REQUIRE(extract->Arg(1).U32() == writes.size() - 1);
-        }
-    }
-    REQUIRE(fetches == 1);
-    REQUIRE(writes == std::vector<u32>{8, 9, 10, 11});
-    auto invalid = input;
-    invalid[0].words[0] |= 1U << 24;
-    REQUIRE_FALSE(Shader::Ampere::LowerToMaxwell(invalid));
-}
-
-TEST_CASE("Native volume surface store retains XYZ and all four data channels", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00007b9b, 0xa0000c04, 0x00100f00, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 stores{};
-    for (const auto& inst : block.Instructions()) if (inst.GetOpcode() == IR::Opcode::BoundImageWrite) {
-        REQUIRE(inst.Arg(0).U32() == 48);
-        REQUIRE(inst.Flags<IR::TextureInstInfo>().type.Value() == Shader::TextureType::Color3D);
-        for (u32 i = 0; i < 3; ++i)
-            REQUIRE(static_cast<u32>(inst.Arg(1).Inst()->Arg(i).Inst()->Arg(0).Reg()) == i);
-        for (u32 i = 0; i < 4; ++i)
-            REQUIRE(static_cast<u32>(inst.Arg(2).Inst()->Arg(i).Inst()->Arg(0).Reg()) == 4 + i);
-        ++stores;
-    }
-    REQUIRE(stores == 1);
-}
-
-TEST_CASE("Native half FMA ReLU preserves fusion values above one and canonical NaNs", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x0d127231, 0x3000000d, 0x03848d10, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    const std::array<std::array<u16, 3>, 9> cases{{
-        {{0x3c00, 0x4400, 0x4200}}, // -1*1+4 = 3, not saturated to one
-        {{0x4000, 0x3c00, 0x0000}}, // -2*2+1 < 0
-        {{0x3c00, 0x3c00, 0x0000}},
-        {{0x0000, 0x0001, 0x0001}}, // smallest positive subnormal survives
-        {{0x7c00, 0x0000, 0x0000}},
-        {{0x0000, 0x7c00, 0x7c00}},
-        {{0x7e01, 0x3c00, 0x7fff}},
-        {{0xfe01, 0x3c00, 0x7fff}},
-        {{0x8000, 0x8000, 0x0000}},
-    }};
-    for (const auto& values : cases) {
-        ScalarNativeMachine machine;
-        machine.regs[13] = (u32{values[0]} << 16) | 0x4400;
-        machine.regs[16] = 0xc0000000 | values[1];
-        machine.predicates = {true, false, true, false, true, false, true};
-        const auto predicates = machine.predicates;
-        machine.Execute(block);
-        REQUIRE(machine.regs[18] == (u32{values[2]} | (u32{values[2]} << 16)));
-        REQUIRE(machine.predicates == predicates);
-    }
-    // A separate register operand permits a fused product residual that would
-    // vanish if the multiplication rounded before adding its third operand.
-    auto fused = input;
-    fused[0].words[1] = 0x3000000e;
-    IR::Block fused_block{pool};
-    TranslateScalarNative(fused, fused_block);
-    ScalarNativeMachine machine;
-    machine.regs[13] = 0x3c013c01;
-    machine.regs[14] = 0x3bfe3bfe;
-    machine.regs[16] = 0x3c003c00;
-    machine.Execute(fused_block);
-    REQUIRE(machine.regs[18] == 0x00100010); // 2^-20 in each half
-}
-
-TEST_CASE("Native half FMA ReLU accepts packed immediates without losing input aliases", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x02027831, 0x3c003c00, 0x03968805, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (const auto [source, addend, expected] : std::array<std::array<u16, 3>, 4>{{
-        {{0x4000, 0x3c00, 0x3c00}}, {{0x3c00, 0x4400, 0x0000}},
-        {{0x4400, 0x3c00, 0x4200}}, {{0x7e01, 0x3c00, 0x7fff}},
-    }}) {
-        ScalarNativeMachine machine;
-        machine.regs[2] = source | 0xc4000000U;
-        machine.regs[5] = (u32{addend} << 16) | 0x4800;
-        machine.Execute(block);
-        REQUIRE(machine.regs[2] == (u32{expected} | (u32{expected} << 16)));
-    }
-}
-
-TEST_CASE("Native quad butterfly and swizzled add retain horizontal and vertical differences", "[native-shader]") {
-    const bool vertical = GENERATE(false, true);
-    const std::array<Native, 3> input{{
-        {{0x05107f89, vertical ? 0x0c5c0300U : 0x0c3c0300U, 0x000e0000, 0}},
-        {{0x100c7822, vertical ? 0x5aU : 0x66U, 5, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    std::array<std::array<u32, 256>, 32> registers{};
-    std::array<std::array<bool, 7>, 32> predicates{};
-    for (u32 lane = 0; lane < 32; ++lane)
-        registers[lane][5] = std::bit_cast<u32>(static_cast<float>(lane / 4 * 100 + (lane & 1) * 3 + ((lane >> 1) & 1) * 11));
-    ExecuteNativeWarp(block, 0xffffffffU, registers, predicates);
-    for (u32 lane = 0; lane < 32; ++lane) {
-        REQUIRE(registers[lane][16] == registers[lane ^ (vertical ? 2 : 1)][5]);
-        REQUIRE(std::bit_cast<float>(registers[lane][12]) == (vertical ? 11.0f : 3.0f));
-    }
-}
-
-TEST_CASE("Native array gradient fetch retains array index XY derivatives descriptor and RGBA", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x04047b6c, 0xa080080c, 0x001e0f06, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 samples{};
-    std::vector<u32> writes;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageGradient) {
-            REQUIRE(inst.Arg(0).U32() == 32);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type.Value() == Shader::TextureType::ColorArray2D);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().num_derivatives.Value() == 2);
-            const auto* coords = inst.Arg(1).Inst();
-            REQUIRE(coords->Arg(0).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{4});
-            REQUIRE(coords->Arg(1).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{5});
-            const auto* layer = coords->Arg(2).Inst()->Arg(0).Inst();
-            REQUIRE(layer->GetOpcode() == IR::Opcode::BitFieldUExtract);
-            REQUIRE(layer->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{6});
-            REQUIRE(layer->Arg(2).U32() == 16);
-            for (u32 component = 0; component < 4; ++component)
-                REQUIRE(inst.Arg(2).Inst()->Arg(component).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{12 + component});
-            ++samples;
-        }
-        if (inst.GetOpcode() == IR::Opcode::SetRegister) writes.push_back(static_cast<u32>(inst.Arg(0).Reg()));
-    }
-    REQUIRE(samples == 1);
-    REQUIRE(writes == std::vector<u32>{4, 5, 6, 7});
-}
-
-TEST_CASE("Native capture distinguishes forward branches from call targets beyond main EXIT", "[native-shader]") {
-    using Capture = Shader::Ampere::ProgramCaptureState;
-    Capture calls;
-    REQUIRE(calls.Observe(Native{{0x7944, 48, 0x03c00000, 0}}, 1) == Capture::Result::Continue);
-    REQUIRE(calls.Observe(VertexTransform.back(), 2) == Capture::Result::Continue);
-    REQUIRE(calls.Observe(Native{{0x08007950, 0, 0, 0}}, 6) == Capture::Result::Complete);
-    Capture branches;
-    REQUIRE(branches.Observe(Native{{0x7947, 48, 0x03800000, 0}}, 0) == Capture::Result::Continue);
-    REQUIRE(branches.Observe(VertexTransform.back(), 1) == Capture::Result::Continue);
-    REQUIRE(branches.Observe(VertexTransform.back(), 4) == Capture::Result::Complete);
-    Capture multiple;
-    REQUIRE(multiple.Observe(Native{{0x7944, 96, 0x03c00000, 0}}, 1) == Capture::Result::Continue);
-    REQUIRE(multiple.Observe(Native{{0x7944, 128, 0x03c00000, 0}}, 3) == Capture::Result::Continue);
-    REQUIRE(multiple.Observe(VertexTransform.back(), 4) == Capture::Result::Continue);
-    REQUIRE(multiple.Observe(Native{{0x08007950, 0, 0, 0}}, 9) == Capture::Result::Continue);
-    REQUIRE(multiple.Observe(Native{{0x08007950, 0, 0, 0}}, 13) == Capture::Result::Complete);
-    Capture loop_exit;
-    REQUIRE(loop_exit.Observe(Native{{0x0944, 16, 0x03c00000, 0}}, 0) == Capture::Result::Continue);
-    REQUIRE(loop_exit.Observe(Native{{0x7947, 0xfffffff0, 0x0383ffff, 0}}, 1) == Capture::Result::Continue);
-    REQUIRE(loop_exit.Observe(Native{{0x7941, 0, 0x03800000, 0}}, 2) == Capture::Result::Continue);
-    REQUIRE(loop_exit.Observe(VertexTransform.back(), 3) == Capture::Result::Complete);
-    Capture invalid;
-    REQUIRE(invalid.Observe(Native{{0x7947, 1, 0x03800000, 0}}, 0) == Capture::Result::InvalidTarget);
-}
-
-TEST_CASE("Native implicit volume sample preserves XYZ and all four split channels", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x0a0a7b60, 0x5080400e, 0x041e0f0c, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 samples{};
-    std::vector<std::pair<u32, u32>> copies;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageSampleImplicitLod) {
-            REQUIRE(inst.Arg(0).U32() == 256);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type.Value() == Shader::TextureType::Color3D);
-            for (u32 i = 0; i < 3; ++i)
-                REQUIRE(inst.Arg(1).Inst()->Arg(i).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{250 + i});
-            ++samples;
-        }
-        if (inst.GetOpcode() == IR::Opcode::SetRegister && inst.Arg(1).Inst()->GetOpcode() == IR::Opcode::GetRegister)
-            copies.emplace_back(static_cast<u32>(inst.Arg(0).Reg()), static_cast<u32>(inst.Arg(1).Inst()->Arg(0).Reg()));
-    }
-    REQUIRE(samples == 1);
-    REQUIRE(copies == std::vector<std::pair<u32, u32>>{{250, 10}, {251, 11}, {252, 14}, {10, 250}, {11, 251}, {12, 252}, {13, 253}});
-}
-
-TEST_CASE("Native array shadow sampling retains layer XY depth reference and scalar destination", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x082e7b60, 0xb080140a, 0x001e41ff, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    u32 samples{};
-    std::vector<std::pair<u32, u32>> copies;
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::BoundImageSampleDrefImplicitLod) {
-            REQUIRE(inst.Arg(0).U32() == 80);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().type.Value() == Shader::TextureType::ColorArray2D);
-            REQUIRE(inst.Flags<IR::TextureInstInfo>().is_depth.Value() == 1);
-            REQUIRE(inst.Arg(1).Inst()->Arg(0).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{251});
-            REQUIRE(inst.Arg(1).Inst()->Arg(1).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{252});
-            REQUIRE(inst.Arg(2).Inst()->Arg(0).Inst()->Arg(0).Reg() == IR::Reg{11});
-            ++samples;
-        }
-        if (inst.GetOpcode() == IR::Opcode::SetRegister && inst.Arg(1).Inst()->GetOpcode() == IR::Opcode::GetRegister)
-            copies.emplace_back(static_cast<u32>(inst.Arg(0).Reg()), static_cast<u32>(inst.Arg(1).Inst()->Arg(0).Reg()));
-    }
-    REQUIRE(samples == 1);
-    REQUIRE(copies == std::vector<std::pair<u32, u32>>{{250, 8}, {251, 9}, {252, 10}});
-    REQUIRE(block.Instructions().back().Arg(0).Reg() == IR::Reg{46});
-}
-
-TEST_CASE("Native immediate uniform comparison and select preserve predicates at unsigned boundaries", "[native-shader]") {
-    const std::array<Native, 3> input{{{{0x0400788c, 6, 0x0bf01070, 0}}, {{0x04057887, 6, 0x08000000, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 value : {0U, 5U, 6U, 7U, 0x80000000U, 0xffffffffU}) {
-        ScalarNativeMachine machine;
-        machine.regs[220] = value;
-        for (u32 i = 0; i < 7; ++i) machine.predicates[i] = (i & 1) != 0;
-        const auto saved = machine.predicates;
-        machine.Execute(block);
-        REQUIRE(((machine.regs[239] >> 6) & 1) == (value < 6));
-        REQUIRE(machine.regs[221] == std::min(value, 6U));
-        REQUIRE(machine.predicates == saved);
-    }
-}
-
-TEST_CASE("Native uniform signed right shift sign extends the high word", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x3f057899, 31, 0x08011404, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 value : {0U, 1U, 0x7fffffffU, 0x80000000U, 0xffffffffU}) {
-        ScalarNativeMachine machine;
-        machine.regs[220] = value;
-        machine.Execute(block);
-        REQUIRE(machine.regs[221] == ((value & 0x80000000U) ? 0xffffffffU : 0U));
-    }
-}
-
-TEST_CASE("Native indexed constant load adds a signed byte displacement", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x30077b82, 0x00fe0500, 0x00000800, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    ScalarNativeMachine machine;
-    machine.regs[48] = 0x800;
-    machine.constants[(u64{3} << 32) | 0x14] = 0x12345678;
-    machine.Execute(block);
-    REQUIRE(machine.regs[7] == 0x12345678);
-}
-
-TEST_CASE("Native local spill retains byte address data and execution predicate", "[native-shader]") {
-    const std::array<Native, 3> input{{{{0xff001387, 85, 0x00100800, 0}},
-        {{0xff2a7983, 0, 0x00300800, 0}}, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(Shader::Maxwell::Decode(lowered.instructions[0]) == Shader::Maxwell::Opcode::STL);
-    REQUIRE(Shader::Maxwell::Instruction{lowered.instructions[0]}.Pred().index == 1);
-    REQUIRE((lowered.instructions[0] & 255) == 85);
-    REQUIRE((lowered.instructions[1] & 255) == 42);
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    class LocalEnvironment : public EmptyEnvironment {
-    public:
-        u32 LocalMemorySize() const override { return 4; }
-    } env;
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.STL(lowered.instructions[0]);
-    visitor.LDL(lowered.instructions[1]);
-    u32 loads{}, stores{};
-    for (const auto& inst : block.Instructions()) {
-        if (inst.GetOpcode() == IR::Opcode::LoadLocal) {
-            REQUIRE(inst.Arg(0).U32() == 0);
-            ++loads;
-        }
-        if (inst.GetOpcode() == IR::Opcode::WriteLocal) {
-            REQUIRE(inst.Arg(0).U32() == 0);
-            REQUIRE(inst.Arg(1).Inst()->Arg(0).Reg() == IR::Reg{85});
-            ++stores;
-        }
-    }
-    REQUIRE(loads == 1);
-    REQUIRE(stores == 1);
-}
-
-TEST_CASE("Native scalar half conversion applies absolute value before rounding", "[native-shader]") {
-    const bool negate = GENERATE(false, true);
-    const std::array<Native, 2> input{{{{0x00047304, negate ? 0x80000000U : 0x40000000U, 0x00200800, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (const auto [value, expected] : std::array<std::pair<float, u32>, 7>{{
-        {-1.0f, 0x3c00}, {-0.0f, 0}, {-2.5f, 0x4100},
-        {1.00048828125f, 0x3c00}, {1.00146484375f, 0x3c02},
-        {-0x1p-24f, 1}, {-std::numeric_limits<float>::infinity(), 0x7c00},
-    }}) {
-        ScalarNativeMachine machine;
-        machine.regs[0] = std::bit_cast<u32>(value);
-        machine.Execute(block);
-        REQUIRE(machine.regs[4] == (expected | (negate && !std::signbit(value) ? 0x8000U : 0U)));
-    }
-}
-
-TEST_CASE("Native predicated half ReLU guards its complete expansion including predicate scratch", "[native-shader]") {
-    for (u32 pred : {1U, 6U, 9U, 14U}) {
-        const std::array<Native, 2> input{{{{0x12140231U | (pred << 12), 0x20000012, 0x03848914, 0}}, VertexTransform.back()}};
-        const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-        REQUIRE(lowered);
-        REQUIRE(Shader::Maxwell::Decode(lowered.instructions.front()) == Shader::Maxwell::Opcode::BRA);
-        REQUIRE(((lowered.instructions.front() >> 16) & 15) == (pred ^ 8));
-        Shader::ObjectPool<IR::Inst> pool;
-        IR::Block block{pool};
-        EmptyEnvironment env;
-        Shader::Maxwell::TranslatorVisitor visitor{env, block};
-        for (size_t i = 1; i + 1 < lowered.instructions.size(); ++i) {
-            const u64 word = lowered.instructions[i];
-            REQUIRE(((word >> 16) & 15) == 7);
-            switch (Shader::Maxwell::Decode(word)) {
-#define INST(name, cute, encode) case Shader::Maxwell::Opcode::name: visitor.name(word); break;
-#include "shader_recompiler/frontend/maxwell/maxwell.inc"
-#undef INST
-            }
-        }
-        for (bool value : {false, true}) {
-            ScalarNativeMachine machine;
-            machine.regs[18] = 0x3c003c00;
-            machine.regs[20] = 0x44004400;
-            machine.predicates.fill(true);
-            machine.predicates[pred & 7] = value;
-            const auto saved = machine.predicates;
-            if (value != ((pred & 8) != 0)) machine.Execute(block);
-            REQUIRE(machine.regs[20] == (value != ((pred & 8) != 0) ? 0x42004200U : 0x44004400U));
-            REQUIRE(machine.predicates == saved);
-        }
-    }
-}
-
-TEST_CASE("Native unsigned half conversion truncates and saturates NTZ edge cases", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x000e7305, 13, 0x0010f000, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (const auto [value, expected] : std::array<std::pair<u32, u32>, 8>{{
-        {0x3e00, 1}, {0x4100, 2}, {0xbe00, 0}, {0x0001, 0},
-        {0x7bff, 65504}, {0x7c00, 0xffffffffU}, {0xfc00, 0}, {0x7e00, 0},
-    }}) {
-        ScalarNativeMachine machine;
-        machine.regs[13] = 0xdead0000 | value;
-        machine.Execute(block);
-        REQUIRE(machine.regs[14] == expected);
-    }
-}
-
-TEST_CASE("Native predicate LUT OR combines three inputs while preserving other predicates", "[native-shader]") {
-    const std::array<Native, 3> input{{{{0x0000781c, 0, 0x01f25f16, 0}}, {{0x0000781c, 0, 0x00703570, 0}}, VertexTransform.back()}};
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    TranslateScalarNative(input, block);
-    for (u32 bits = 0; bits < 128; ++bits) {
-        ScalarNativeMachine machine;
-        for (u32 i = 0; i < 7; ++i) machine.predicates[i] = (bits >> i) & 1;
-        auto expected = machine.predicates;
-        expected[1] = expected[1] || expected[2] || expected[3];
-        expected[0] = expected[0] || expected[1];
-        machine.Execute(block);
-        REQUIRE(machine.predicates == expected);
-    }
-}
-
-TEST_CASE("Native half FMA absolute source clears each half sign before broadcast", "[native-shader]") {
-    for (bool broadcast : {false, true}) {
-        const std::array<Native, 2> input{{{{0x1a087231, 0x20000008,
-            broadcast ? 0x00040a0dU : 0x0004020dU, 0}}, VertexTransform.back()}};
-        Shader::ObjectPool<IR::Inst> pool;
-        IR::Block block{pool};
-        TranslateScalarNative(input, block);
-        ScalarNativeMachine machine;
-        machine.regs[26] = 0xc400c000;
-        machine.regs[8] = 0x40003c00;
-        machine.regs[13] = 0x44004200;
-        machine.Execute(block);
-        REQUIRE(machine.regs[8] == (broadcast ? 0x45004500U : 0x47004500U));
-    }
-}
-
-TEST_CASE("Native constant interpolation retains attribute and flat input behavior", "[native-shader]") {
-    const std::array<Native, 2> input{{{{0x00047326, 255, 0x000e403c, 0}}, VertexTransform.back()}};
-    const auto lowered = Shader::Ampere::LowerToMaxwell(input);
-    REQUIRE(lowered);
-    REQUIRE(((lowered.instructions[0] >> 54) & 3) == 2);
-    class FlatEnvironment : public EmptyEnvironment {
-    public:
-        FlatEnvironment() { sph.ps.imap_generic_vector[7].raw = 0x55; }
-    } env;
-    Shader::ObjectPool<IR::Inst> pool;
-    IR::Block block{pool};
-    Shader::Maxwell::TranslatorVisitor visitor{env, block};
-    visitor.IPA(lowered.instructions[0]);
-    u32 reads{};
-    for (const auto& inst : block.Instructions()) {
-        REQUIRE(inst.GetOpcode() != IR::Opcode::FPMul32);
-        if (inst.GetOpcode() == IR::Opcode::GetAttribute) {
-            REQUIRE(inst.Arg(0).Attribute() == IR::Attribute{60});
-            ++reads;
-        }
-    }
-    REQUIRE(reads == 1);
-}
diff --git a/src/tests/video_core/native_swizzle.cpp b/src/tests/video_core/native_swizzle.cpp
deleted file mode 100644
index 93c4b85dac..0000000000
--- a/src/tests/video_core/native_swizzle.cpp
+++ /dev/null
@@ -1,67 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <algorithm>
-#include <array>
-#include <bit>
-#include <vector>
-#include <catch2/catch_test_macros.hpp>
-#include "video_core/textures/decoders.h"
-
-namespace {
-u64 Digest(const std::vector<u8>& bytes) {
-    u64 digest = 14695981039346656037ULL;
-    for (const u8 byte : bytes) digest = (digest ^ byte) * 1099511628211ULL;
-    return digest;
-}
-}
-
-TEST_CASE("Native Orin texture mips match independent upstream swizzle vectors", "[native-swizzle]") {
-    struct Fixture { u32 width, height, levels, bytes; std::array<u64, 4> hashes; };
-    const std::array fixtures{
-        Fixture{32, 64, 2, 8, {0x9fcd630e81008de4ULL, 0x0b316aa26800970aULL}},
-        Fixture{128, 256, 4, 16, {0x1d16743f55444bd6ULL, 0x628ec170d3dc24b6ULL, 0x9d5ce8671743eadcULL, 0x68c86243a7167475ULL}},
-        Fixture{128, 128, 3, 8, {0xa3694bb8d6333e7eULL, 0xe748d5f21bd06d5dULL, 0xabfa06266de4d322ULL}},
-        Fixture{256, 64, 2, 16, {0x9820bfdf5000d898ULL, 0x2177c49e446a9450ULL}},
-        Fixture{64, 256, 4, 16, {0x30e15cf8e750e118ULL, 0x286e806b76ac89e4ULL, 0xa0dc28aebfbe0862ULL, 0xdca4a8b9b78cafc2ULL}},
-    };
-    for (const auto& fixture : fixtures) {
-        u32 state = 0x12345678;
-        for (u32 level = 0; level < fixture.levels; ++level) {
-            const u32 width = (std::max(1U, fixture.width >> level) + 3) / 4;
-            const u32 height = (std::max(1U, fixture.height >> level) + 3) / 4;
-            u32 block_height = 16;
-            while (block_height > 1 && height <= block_height * 4) block_height >>= 1;
-            const u32 block_log2 = static_cast<u32>(std::countr_zero(block_height));
-            const size_t size = Tegra::Texture::CalculateSize(true, fixture.bytes, width, height, 1, block_log2, 0);
-            std::vector<u8> tiled(size);
-            for (auto& byte : tiled) { state = state * 1664525U + 1013904223U; byte = static_cast<u8>(state >> 24); }
-            std::vector<u8> linear(width * height * fixture.bytes);
-            Tegra::Texture::UnswizzleTexture(linear, tiled, fixture.bytes, width, height, 1, block_log2, 0, 1, true);
-            INFO("width=" << width << " height=" << height << " mip=" << level);
-            REQUIRE(Digest(linear) == fixture.hashes[level]);
-            auto restored = tiled;
-            Tegra::Texture::SwizzleTexture(restored, linear, fixture.bytes, width, height, 1, block_log2, 0, 1, true);
-            REQUIRE(restored == tiled);
-        }
-    }
-}
-
-TEST_CASE("Native and legacy GOB byte lanes remain distinct", "[native-swizzle]") {
-    std::vector<u8> tiled(512);
-    for (u32 i = 0; i < tiled.size(); ++i) tiled[i] = static_cast<u8>(i / 16);
-    std::vector<u8> native(512), legacy(512);
-    Tegra::Texture::UnswizzleTexture(native, tiled, 1, 64, 8, 1, 0, 0, 1, true);
-    Tegra::Texture::UnswizzleTexture(legacy, tiled, 1, 64, 8, 1, 0, 0);
-    REQUIRE(native[16] == 4);
-    REQUIRE(legacy[16] == 2);
-    REQUIRE(native[2 * 64] == 2);
-    REQUIRE(legacy[2 * 64] == 4);
-    REQUIRE(native != legacy);
-    std::vector<u8> crop(16 * 3);
-    Tegra::Texture::UnswizzleSubrect(crop, tiled, 1, 64, 8, 1, 16, 2, 16, 3, 0, 0, 16, true);
-    for (u32 y = 0; y < 3; ++y) {
-        REQUIRE(std::equal(crop.begin() + y * 16, crop.begin() + (y + 1) * 16,
-                           native.begin() + (y + 2) * 64 + 16));
-    }
-}
diff --git a/src/tests/video_core/pending_download.cpp b/src/tests/video_core/pending_download.cpp
deleted file mode 100644
index 4b2a218933..0000000000
--- a/src/tests/video_core/pending_download.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <deque>
-#include <memory>
-#include <vector>
-#include <catch2/catch_test_macros.hpp>
-#include "common/slot_vector.h"
-#include "video_core/texture_cache/pending_download.h"
-
-namespace {
-struct DownloadImage {
-    DownloadImage(u32 value, std::shared_ptr<std::vector<u32>> destroyed_)
-        : handle{std::make_unique<u32>(value)}, destroyed{std::move(destroyed_)} {}
-    DownloadImage(DownloadImage&&) noexcept = default;
-    DownloadImage& operator=(DownloadImage&&) noexcept = default;
-    ~DownloadImage() { if (handle) destroyed->push_back(*handle); }
-    std::unique_ptr<u32> handle;
-    std::shared_ptr<std::vector<u32>> destroyed;
-};
-using Download = VideoCommon::PendingImageDownload<DownloadImage>;
-}
-
-TEST_CASE("Queued texture downloads survive deletion and reuse of their cache slot", "[texture-download]") {
-    auto destroyed = std::make_shared<std::vector<u32>>();
-    Common::SlotVector<DownloadImage> images;
-    const auto old_id = images.insert(42U, destroyed);
-    std::vector<Download> pending{{true, 0, old_id, {}}, {false, 0, old_id, {}}};
-    std::deque<std::vector<Download>> submitted{{{true, 0, old_id, {}}}};
-    REQUIRE(VideoCommon::RetainPendingImageDownloads(old_id, images[old_id], pending, submitted));
-    REQUIRE_FALSE(images[old_id].handle);
-    REQUIRE(pending[0].retired_image == submitted[0][0].retired_image);
-    REQUIRE_FALSE(pending[1].retired_image); // Buffer-download slot IDs are a separate namespace.
-    images.erase(old_id);
-    const auto replacement_id = images.insert(99U, destroyed);
-    REQUIRE(replacement_id == old_id);
-    REQUIRE(*pending[0].GetImage(images).handle == 42);
-    REQUIRE(*submitted[0][0].GetImage(images).handle == 42);
-    REQUIRE(*images[replacement_id].handle == 99);
-    // Retiring the replacement must not redirect an earlier generation's downloads.
-    pending.push_back({true, 1, replacement_id, {}});
-    REQUIRE(VideoCommon::RetainPendingImageDownloads(replacement_id, images[replacement_id], pending, submitted));
-    images.erase(replacement_id);
-    REQUIRE(*pending[0].GetImage(images).handle == 42);
-    REQUIRE(*pending[2].GetImage(images).handle == 99);
-    REQUIRE(destroyed->empty());
-    pending.clear();
-    REQUIRE(*destroyed == std::vector<u32>{99});
-    REQUIRE(*submitted[0][0].GetImage(images).handle == 42);
-    submitted.pop_front();
-    REQUIRE(*destroyed == std::vector<u32>{99, 42});
-}
-
-TEST_CASE("Textures without queued downloads retain ordinary cache retirement", "[texture-download]") {
-    auto destroyed = std::make_shared<std::vector<u32>>();
-    Common::SlotVector<DownloadImage> images;
-    const auto id = images.insert(7U, destroyed);
-    std::vector<Download> pending{{false, 0, id, {}}};
-    std::deque<std::vector<Download>> submitted;
-    REQUIRE_FALSE(VideoCommon::RetainPendingImageDownloads(id, images[id], pending, submitted));
-    REQUIRE(*images[id].handle == 7);
-    images.erase(id);
-    REQUIRE(*destroyed == std::vector<u32>{7});
-}
-
-TEST_CASE("Repeated whole-image downloads keep first occurrence and buffer requests", "[texture-download]") {
-    auto destroyed = std::make_shared<std::vector<u32>>();
-    Common::SlotVector<DownloadImage> images;
-    const auto a = images.insert(42U, destroyed);
-    const auto b = images.insert(99U, destroyed);
-    std::vector<Download> pending{{true, 0, a, {}}, {true, 0, b, {}},
-                                  {false, 3, Common::SlotId{10000}, {}}, {true, 0, a, {}}};
-    const auto writeback = [&](const auto& downloads) {
-        u32 value = 0;
-        for (auto it = downloads.rbegin(); it != downloads.rend(); ++it)
-            if (it->is_swizzle) value = *it->GetImage(images).handle;
-        return value;
-    };
-    const u32 expected = writeback(pending);
-    REQUIRE(VideoCommon::DeduplicatePendingImageDownloads(pending, images) == 1);
-    REQUIRE(pending.size() == 3);
-    REQUIRE(pending[0].object_id == a);
-    REQUIRE(pending[1].object_id == b);
-    REQUIRE_FALSE(pending[2].is_swizzle);
-    REQUIRE(pending[2].async_buffer_id == 3);
-    REQUIRE(writeback(pending) == expected);
-    REQUIRE(expected == 42);
-}
-
-TEST_CASE("Readback deduplication distinguishes recycled image generations", "[texture-download]") {
-    auto destroyed = std::make_shared<std::vector<u32>>();
-    Common::SlotVector<DownloadImage> images;
-    const auto id = images.insert(42U, destroyed);
-    std::vector<Download> pending{{true, 0, id, {}}};
-    std::deque<std::vector<Download>> submitted;
-    REQUIRE(VideoCommon::RetainPendingImageDownloads(id, images[id], pending, submitted));
-    auto old = pending.front();
-    images.erase(id);
-    const auto replacement = images.insert(99U, destroyed);
-    REQUIRE(replacement == id);
-    pending.push_back({true, 0, replacement, {}});
-    for (size_t i = 0; i < 1000; ++i) pending.push_back(old);
-    REQUIRE(VideoCommon::DeduplicatePendingImageDownloads(pending, images) == 1000);
-    REQUIRE(pending.size() == 2);
-    REQUIRE(*pending[0].GetImage(images).handle == 42);
-    REQUIRE(*pending[1].GetImage(images).handle == 99);
-    REQUIRE(destroyed->empty());
-    pending.clear();
-    REQUIRE(destroyed->empty());
-    old.retired_image.reset();
-    REQUIRE(*destroyed == std::vector<u32>{42});
-}