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A runtime SPIR-V assembler

License: BSD 3-Clause "New" or "Revised" License

CMake 3.20% C++ 96.80%

sirit's Introduction

Sirit

A runtime SPIR-V assembler. It aims to ease dynamic SPIR-V code generation without calling external applications (like Khronos' spirv-as)

Its design aims to move code that does not belong in the application to the library, without limiting its functionality.

What Sirit does for you:

Sort declaration opcodes
Handle types and constant duplicates
Emit SPIR-V opcodes

What Sirit won't do for you:

Avoid ID duplicates (e.g. emitting the same label twice)
Dump code to disk
Handle control flow
Compile from a higher level language

It's in early stages of development, many instructions are missing since they are written manually instead of being generated from a file.

Example

class MyModule : public Sirit::Module {
public:
    MyModule() {}
    ~MyModule() = default;

    void Generate() {
        AddCapability(spv::Capability::Shader);
        SetMemoryModel(spv::AddressingModel::Logical, spv::MemoryModel::GLSL450);
        
        auto main_type{TypeFunction(TypeVoid())};
        auto main_func{OpFunction(TypeVoid(), spv::FunctionControlMask::MaskNone, main_type)};
        AddLabel(OpLabel());
        OpReturn();
        OpFunctionEnd();

        AddEntryPoint(spv::ExecutionModel::Vertex, main_func, "main");
    }
};

// Then...

MyModule module;
module.Generate();

std::vector<std::uint32_t> code{module.Assemble()};

sirit's People

Contributors

Stargazers

Watchers

Forkers

fernandos27 d3v3l0 lxngoddess5321 comex lioncash eul-lord voidanix raphaelthegreat bylaws sisah2 yungraj kongfl888 damp-canary

sirit's Issues

Missing file (Sirit.h)

The declaration file sirit.h is missing which makes a problem in building yuzu the switch emulator

Merge Block in OpSelectionMerge

First, I want to say thank you for this project. I know it from yuzu. I'm trying use it to write the SPIR-V code.
Now, I have a problem. I don't know how to handle Merge Block in OpSelectionMerge. In SPIR-V, OpSelectionMerge can use the Merge Block id that defines later. But for C++, I can't use the variable that is undefined.

Fails to build without -DNDEBUG e.g., via -DCMAKE_BUILD_TYPE=Unknown

Regressed by 22cc6f6. Found via Yuzu.

Clang 9.0.0 reports:

src/op.cpp:85:21: fatal error: implicit conversion turns string literal into bool: 'const char [21]' to 'bool' [-Wstring-conversion]
            assert(!"Invalid literal type");
                   ~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/assert.h:56:21: note: expanded from macro 'assert'
#define assert(e)       ((e) ? (void)0 : __assert(__func__, __FILE__, \
                          ^
src/op.cpp:115:56: fatal error: declaration shadows a field of 'Sirit::Op' [-Wshadow]
    assert(std::all_of(ids.begin(), ids.end(), [](auto id) { return id; }));
                                                       ^
src/./op.h:56:24: note: previous declaration is here
    std::optional<u32> id;
                       ^
2 errors generated.

GCC 9.1.0 reports:

In file included from /usr/include/c++/cassert:44,
                 from src/op.cpp:8:
src/op.cpp: In lambda function:
src/op.cpp:115:58: error: declaration of 'id' shadows a member of 'Sirit::Op' [-Werror=shadow]
  115 |     assert(std::all_of(ids.begin(), ids.end(), [](auto id) { return id; }));
      |                                                          ^
compilation terminated due to -Wfatal-errors.
cc1plus: all warnings being treated as errors

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