Method makeFloatE5M2Type

SPIRV/SpvBuilder.cpp:361–392

}

Id Builder::makeFloatE5M2Type()
{
    // try to find it
    Instruction* type;
    for (int t = 0; t < (int)groupedTypes[enumCast(Op::OpTypeFloat)].size(); ++t) {
        type = groupedTypes[enumCast(Op::OpTypeFloat)][t];
        if (type->getNumOperands() != 2) {
            continue;
        }
        if (type->getImmediateOperand(0) == (unsigned)8 &&
            type->getImmediateOperand(1) == FPEncoding::Float8E5M2EXT)
            return type->getResultId();
    }

    // not found, make it
    type = new Instruction(getUniqueId(), NoType, Op::OpTypeFloat);
    type->addImmediateOperand(8);
    type->addImmediateOperand(FPEncoding::Float8E5M2EXT);
    groupedTypes[enumCast(Op::OpTypeFloat)].push_back(type);
    constantsTypesGlobals.push_back(std::unique_ptr<Instruction>(type));
    module.mapInstruction(type);

    addExtension(spv::E_SPV_EXT_float8);
    addCapability(Capability::Float8EXT);

    if (emitNonSemanticShaderDebugInfo) {
        auto const debugResultId = makeFloatDebugType(8, makeUintConstant((unsigned)FPEncoding::Float8E5M2EXT));
        debugTypeIdLookup[type->getResultId()] = debugResultId;
    }

    return type->getResultId();
}

Id Builder::makeFloatE4M3Type()
{