Method makeFunctionEntry

SPIRV/SpvBuilder.cpp:2697–2734

Comments in header

// Comments in header
Function* Builder::makeFunctionEntry(Decoration precision, Id returnType, const char* name, LinkageType linkType,
                                     const std::vector<Id>& paramTypes,
                                     const std::vector<std::vector<Decoration>>& decorations, Block** entry)
{
    // Make the function and initial instructions in it
    Id typeId = makeFunctionType(returnType, paramTypes);
    Id firstParamId = paramTypes.size() == 0 ? 0 : getUniqueIds((int)paramTypes.size());
    Id funcId = getUniqueId();
    Function* function = new Function(funcId, returnType, typeId, firstParamId, linkType, name, module);

    // Set up the precisions
    setPrecision(function->getId(), precision);
    function->setReturnPrecision(precision);
    for (unsigned p = 0; p < (unsigned)decorations.size(); ++p) {
        for (int d = 0; d < (int)decorations[p].size(); ++d) {
            addDecoration(firstParamId + p, decorations[p][d]);
            function->addParamPrecision(p, decorations[p][d]);
        }
    }

    // reset last debug scope
    if (emitNonSemanticShaderDebugInfo) {
        dirtyScopeTracker = true;
    }

    // CFG
    assert(entry != nullptr);
    *entry = new Block(getUniqueId(), *function);
    function->addBlock(*entry);
    setBuildPoint(*entry);

    if (name)
        addName(function->getId(), name);

    functions.push_back(std::unique_ptr<Function>(function));

    return function;
}

void Builder::setupFunctionDebugInfo(Function* function, const char* name, const std::vector<Id>& paramTypes,
                                     const std::vector<char const*>& paramNames)