anonymous_namespace{ExtensionsIR.cpp} Namespace Reference

Functions
llvm::StructType *	get_buffer_struct_type (CgenState *cgen_state, const std::string &ext_func_name, size_t param_num, llvm::Type *elem_type, bool has_is_null)
llvm::Type *	ext_arg_type_to_llvm_type (const ExtArgumentType ext_arg_type, llvm::LLVMContext &ctx)
SQLTypeInfo	get_sql_type_from_llvm_type (const llvm::Type *ll_type)
llvm::Type *	get_llvm_type_from_sql_array_type (const SQLTypeInfo ti, llvm::LLVMContext &ctx)
bool	ext_func_call_requires_nullcheck (const Analyzer::FunctionOper *function_oper)
bool	call_requires_custom_type_handling (const Analyzer::FunctionOper *function_oper)

Function Documentation

bool anonymous_namespace{ExtensionsIR.cpp}::call_requires_custom_type_handling

(

const Analyzer::FunctionOper *

function_oper

)

Definition at line 497 of file ExtensionsIR.cpp.

References Analyzer::Expr::get_type_info(), Analyzer::FunctionOper::getArg(), and Analyzer::FunctionOper::getArity().

Referenced by CodeGenerator::codegenFunctionOperWithCustomTypeHandling().

                                                                                   {
  const auto& ret_ti = function_oper->get_type_info();
  if (!ret_ti.is_integer() && !ret_ti.is_fp()) {
    return true;
  }
  for (size_t i = 0; i < function_oper->getArity(); ++i) {
    const auto arg = function_oper->getArg(i);
    const auto& arg_ti = arg->get_type_info();
    if (!arg_ti.is_integer() && !arg_ti.is_fp()) {
      return true;
    }
  }
  return false;
}

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llvm::Type* anonymous_namespace{ExtensionsIR.cpp}::ext_arg_type_to_llvm_type	(	const ExtArgumentType	ext_arg_type,
		llvm::LLVMContext &	ctx
	)

Definition at line 85 of file ExtensionsIR.cpp.

References ArrayBool, ArrayDouble, ArrayFloat, ArrayInt16, ArrayInt32, ArrayInt64, ArrayInt8, Bool, CHECK, ColumnBool, ColumnDouble, ColumnFloat, ColumnInt16, ColumnInt32, ColumnInt64, ColumnInt8, ColumnListBool, ColumnListDouble, ColumnListFloat, ColumnListInt16, ColumnListInt32, ColumnListInt64, ColumnListInt8, ColumnTimestamp, Double, Float, get_int_type(), Int16, Int32, Int64, Int8, and TextEncodingNone.

Referenced by CodeGenerator::codegenFunctionOper().

                                                            {
  switch (ext_arg_type) {
    case ExtArgumentType::Bool:  // pass thru to Int8
    case ExtArgumentType::Int8:
      return get_int_type(8, ctx);
    case ExtArgumentType::Int16:
      return get_int_type(16, ctx);
    case ExtArgumentType::Int32:
      return get_int_type(32, ctx);
    case ExtArgumentType::Int64:
      return get_int_type(64, ctx);
    case ExtArgumentType::Float:
      return llvm::Type::getFloatTy(ctx);
    case ExtArgumentType::Double:
      return llvm::Type::getDoubleTy(ctx);
    case ExtArgumentType::ArrayInt64:
    case ExtArgumentType::ArrayInt32:
    case ExtArgumentType::ArrayInt16:
    case ExtArgumentType::ArrayBool:
    case ExtArgumentType::ArrayInt8:
    case ExtArgumentType::ArrayDouble:
    case ExtArgumentType::ArrayFloat:
    case ExtArgumentType::ColumnInt64:
    case ExtArgumentType::ColumnInt32:
    case ExtArgumentType::ColumnInt16:
    case ExtArgumentType::ColumnBool:
    case ExtArgumentType::ColumnInt8:
    case ExtArgumentType::ColumnDouble:
    case ExtArgumentType::ColumnFloat:
    case ExtArgumentType::ColumnTimestamp:
    case ExtArgumentType::TextEncodingNone:
    case ExtArgumentType::ColumnListInt64:
    case ExtArgumentType::ColumnListInt32:
    case ExtArgumentType::ColumnListInt16:
    case ExtArgumentType::ColumnListBool:
    case ExtArgumentType::ColumnListInt8:
    case ExtArgumentType::ColumnListDouble:
    case ExtArgumentType::ColumnListFloat:
      return llvm::Type::getVoidTy(ctx);
    default:
      CHECK(false);
  }
  CHECK(false);
  return nullptr;
}

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bool anonymous_namespace{ExtensionsIR.cpp}::ext_func_call_requires_nullcheck

(

const Analyzer::FunctionOper *

function_oper

)

Definition at line 204 of file ExtensionsIR.cpp.

References Analyzer::Expr::get_type_info(), Analyzer::FunctionOper::getArg(), and Analyzer::FunctionOper::getArity().

Referenced by CodeGenerator::beginArgsNullcheck().

                                                                                 {
  const auto& func_ti = function_oper->get_type_info();
  for (size_t i = 0; i < function_oper->getArity(); ++i) {
    const auto arg = function_oper->getArg(i);
    const auto& arg_ti = arg->get_type_info();
    if ((func_ti.is_array() && arg_ti.is_array()) ||
        (func_ti.is_bytes() && arg_ti.is_bytes())) {
      // If the function returns an array and any of the arguments are arrays, allow NULL
      // scalars.
      // TODO: Make this a property of the FunctionOper following `RETURN NULL ON NULL`
      // semantics.
      return false;
    } else if (!arg_ti.get_notnull() && !arg_ti.is_buffer()) {
      // Nullable geometry args will trigger a null check
      return true;
    } else {
      continue;
    }
  }
  return false;
}

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llvm::StructType* anonymous_namespace{ExtensionsIR.cpp}::get_buffer_struct_type	(	CgenState *	cgen_state,
		const std::string &	ext_func_name,
		size_t	param_num,
		llvm::Type *	elem_type,
		bool	has_is_null
	)

Definition at line 30 of file ExtensionsIR.cpp.

References CHECK, and CgenState::context_.

Referenced by CodeGenerator::beginArgsNullcheck(), CodeGenerator::codegenBufferArgs(), CodeGenerator::codegenFunctionOper(), and CodeGenerator::endArgsNullcheck().

                                                           {
  CHECK(elem_type);
  CHECK(elem_type->isPointerTy());
  llvm::StructType* generated_struct_type =
      (has_is_null ? llvm::StructType::get(cgen_state->context_,
                                           {elem_type,
                                            llvm::Type::getInt64Ty(cgen_state->context_),
                                            llvm::Type::getInt8Ty(cgen_state->context_)},
                                           false)
                   : llvm::StructType::get(
                         cgen_state->context_,
                         {elem_type, llvm::Type::getInt64Ty(cgen_state->context_)},
                         false));
  llvm::Function* udf_func = cgen_state->module_->getFunction(ext_func_name);
  if (udf_func) {
    // Compare expected array struct type with type from the function
    // definition from the UDF module, but use the type from the
    // module
    llvm::FunctionType* udf_func_type = udf_func->getFunctionType();
    CHECK_LE(param_num, udf_func_type->getNumParams());
    llvm::Type* param_pointer_type = udf_func_type->getParamType(param_num);
    CHECK(param_pointer_type->isPointerTy());
    llvm::Type* param_type = param_pointer_type->getPointerElementType();
    CHECK(param_type->isStructTy());
    llvm::StructType* struct_type = llvm::cast<llvm::StructType>(param_type);
    CHECK_GE(struct_type->getStructNumElements(),
             generated_struct_type->getStructNumElements())
        << serialize_llvm_object(struct_type);

    const auto expected_elems = generated_struct_type->elements();
    const auto current_elems = struct_type->elements();
    for (size_t i = 0; i < expected_elems.size(); i++) {
      CHECK_EQ(expected_elems[i], current_elems[i])
          << "[" << ::toString(expected_elems[i]) << ", " << ::toString(current_elems[i])
          << "]";
    }

    if (struct_type->isLiteral()) {
      return struct_type;
    }

    llvm::StringRef struct_name = struct_type->getStructName();
#if LLVM_VERSION_MAJOR >= 12
    return struct_type->getTypeByName(cgen_state->context_, struct_name);
#else
    return cgen_state->module_->getTypeByName(struct_name);
#endif
  }
  return generated_struct_type;
}

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llvm::Type* anonymous_namespace{ExtensionsIR.cpp}::get_llvm_type_from_sql_array_type ( const SQLTypeInfo  ti, llvm::LLVMContext &  ctx  )

inline

Definition at line 167 of file ExtensionsIR.cpp.

References CHECK, SQLTypeInfo::get_elem_type(), SQLTypeInfo::is_buffer(), SQLTypeInfo::is_bytes(), and UNREACHABLE.

Referenced by CodeGenerator::beginArgsNullcheck(), CodeGenerator::codegenFunctionOper(), and CodeGenerator::endArgsNullcheck().

                                                                           {
  CHECK(ti.is_buffer());
  if (ti.is_bytes()) {
    return llvm::Type::getInt8PtrTy(ctx);
  }

  const auto& elem_ti = ti.get_elem_type();
  if (elem_ti.is_fp()) {
    switch (elem_ti.get_size()) {
      case 4:
        return llvm::Type::getFloatPtrTy(ctx);
      case 8:
        return llvm::Type::getDoublePtrTy(ctx);
    }
  }

  if (elem_ti.is_boolean()) {
    return llvm::Type::getInt8PtrTy(ctx);
  }

  CHECK(elem_ti.is_integer());
  switch (elem_ti.get_size()) {
    case 1:
      return llvm::Type::getInt8PtrTy(ctx);
    case 2:
      return llvm::Type::getInt16PtrTy(ctx);
    case 4:
      return llvm::Type::getInt32PtrTy(ctx);
    case 8:
      return llvm::Type::getInt64PtrTy(ctx);
  }

  UNREACHABLE();
  return nullptr;
}

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SQLTypeInfo anonymous_namespace{ExtensionsIR.cpp}::get_sql_type_from_llvm_type ( const llvm::Type *  ll_type )

inline

Definition at line 132 of file ExtensionsIR.cpp.

References CHECK, logger::FATAL, kBIGINT, kBOOLEAN, kDOUBLE, kFLOAT, kINT, kSMALLINT, kTINYINT, LOG, and UNREACHABLE.

Referenced by CodeGenerator::codegenFunctionOper(), and CodeGenerator::endArgsNullcheck().

                                                                        {
  CHECK(ll_type);
  const auto bits = ll_type->getPrimitiveSizeInBits();

  if (ll_type->isFloatingPointTy()) {
    switch (bits) {
      case 32:
        return SQLTypeInfo(kFLOAT, false);
      case 64:
        return SQLTypeInfo(kDOUBLE, false);
      default:
        LOG(FATAL) << "Unsupported llvm floating point type: " << bits
                   << ", only 32 and 64 bit floating point is supported.";
    }
  } else {
    switch (bits) {
      case 1:
        return SQLTypeInfo(kBOOLEAN, false);
      case 8:
        return SQLTypeInfo(kTINYINT, false);
      case 16:
        return SQLTypeInfo(kSMALLINT, false);
      case 32:
        return SQLTypeInfo(kINT, false);
      case 64:
        return SQLTypeInfo(kBIGINT, false);
      default:
        LOG(FATAL) << "Unrecognized llvm type for SQL type: "
                   << bits;  // TODO let's get the real name here
    }
  }
  UNREACHABLE();
  return SQLTypeInfo();
}

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