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//===- DialectLLVM.cpp - Pybind module for LLVM dialect API support -------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <string>
#include "mlir-c/Dialect/LLVM.h"
#include "mlir-c/IR.h"
#include "mlir-c/Support.h"
#include "mlir/Bindings/Python/Diagnostics.h"
#include "mlir/Bindings/Python/NanobindAdaptors.h"
#include "mlir/Bindings/Python/Nanobind.h"
namespace nb = nanobind;
using namespace nanobind::literals;
using namespace llvm;
using namespace mlir;
using namespace mlir::python;
using namespace mlir::python::nanobind_adaptors;
void populateDialectLLVMSubmodule(const nanobind::module_ &m) {
//===--------------------------------------------------------------------===//
// StructType
//===--------------------------------------------------------------------===//
auto llvmStructType =
mlir_type_subclass(m, "StructType", mlirTypeIsALLVMStructType);
llvmStructType.def_classmethod(
"get_literal",
[](nb::object cls, const std::vector<MlirType> &elements, bool packed,
MlirLocation loc) {
CollectDiagnosticsToStringScope scope(mlirLocationGetContext(loc));
MlirType type = mlirLLVMStructTypeLiteralGetChecked(
loc, elements.size(), elements.data(), packed);
if (mlirTypeIsNull(type)) {
throw nb::value_error(scope.takeMessage().c_str());
}
return cls(type);
},
"cls"_a, "elements"_a, nb::kw_only(), "packed"_a = false,
"loc"_a.none() = nb::none());
llvmStructType.def_classmethod(
"get_identified",
[](nb::object cls, const std::string &name, MlirContext context) {
return cls(mlirLLVMStructTypeIdentifiedGet(
context, mlirStringRefCreate(name.data(), name.size())));
},
"cls"_a, "name"_a, nb::kw_only(), "context"_a.none() = nb::none());
llvmStructType.def_classmethod(
"get_opaque",
[](nb::object cls, const std::string &name, MlirContext context) {
return cls(mlirLLVMStructTypeOpaqueGet(
context, mlirStringRefCreate(name.data(), name.size())));
},
"cls"_a, "name"_a, "context"_a.none() = nb::none());
llvmStructType.def(
"set_body",
[](MlirType self, const std::vector<MlirType> &elements, bool packed) {
MlirLogicalResult result = mlirLLVMStructTypeSetBody(
self, elements.size(), elements.data(), packed);
if (!mlirLogicalResultIsSuccess(result)) {
throw nb::value_error(
"Struct body already set to different content.");
}
},
"elements"_a, nb::kw_only(), "packed"_a = false);
llvmStructType.def_classmethod(
"new_identified",
[](nb::object cls, const std::string &name,
const std::vector<MlirType> &elements, bool packed, MlirContext ctx) {
return cls(mlirLLVMStructTypeIdentifiedNewGet(
ctx, mlirStringRefCreate(name.data(), name.length()),
elements.size(), elements.data(), packed));
},
"cls"_a, "name"_a, "elements"_a, nb::kw_only(), "packed"_a = false,
"context"_a.none() = nb::none());
llvmStructType.def_property_readonly(
"name", [](MlirType type) -> std::optional<std::string> {
if (mlirLLVMStructTypeIsLiteral(type))
return std::nullopt;
MlirStringRef stringRef = mlirLLVMStructTypeGetIdentifier(type);
return StringRef(stringRef.data, stringRef.length).str();
});
llvmStructType.def_property_readonly("body", [](MlirType type) -> nb::object {
// Don't crash in absence of a body.
if (mlirLLVMStructTypeIsOpaque(type))
return nb::none();
nb::list body;
for (intptr_t i = 0, e = mlirLLVMStructTypeGetNumElementTypes(type); i < e;
++i) {
body.append(mlirLLVMStructTypeGetElementType(type, i));
}
return body;
});
llvmStructType.def_property_readonly(
"packed", [](MlirType type) { return mlirLLVMStructTypeIsPacked(type); });
llvmStructType.def_property_readonly(
"opaque", [](MlirType type) { return mlirLLVMStructTypeIsOpaque(type); });
//===--------------------------------------------------------------------===//
// PointerType
//===--------------------------------------------------------------------===//
mlir_type_subclass(m, "PointerType", mlirTypeIsALLVMPointerType)
.def_classmethod(
"get",
[](nb::object cls, std::optional<unsigned> addressSpace,
MlirContext context) {
CollectDiagnosticsToStringScope scope(context);
MlirType type = mlirLLVMPointerTypeGet(
context, addressSpace.has_value() ? *addressSpace : 0);
if (mlirTypeIsNull(type)) {
throw nb::value_error(scope.takeMessage().c_str());
}
return cls(type);
},
"cls"_a, "address_space"_a.none() = nb::none(), nb::kw_only(),
"context"_a.none() = nb::none())
.def_property_readonly("address_space", [](MlirType type) {
return mlirLLVMPointerTypeGetAddressSpace(type);
});
}
NB_MODULE(_mlirDialectsLLVM, m) {
m.doc() = "MLIR LLVM Dialect";
populateDialectLLVMSubmodule(m);
}
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