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//===- Interfaces.cpp - C Interface for MLIR Interfaces -------------------===//
//
// 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 "mlir-c/Interfaces.h"
#include "mlir/CAPI/IR.h"
#include "mlir/CAPI/Interfaces.h"
#include "mlir/CAPI/Support.h"
#include "mlir/CAPI/Wrap.h"
#include "mlir/IR/ValueRange.h"
#include "mlir/Interfaces/InferTypeOpInterface.h"
#include "llvm/ADT/ScopeExit.h"
#include <optional>
using namespace mlir;
namespace {
std::optional<RegisteredOperationName>
getRegisteredOperationName(MlirContext context, MlirStringRef opName) {
StringRef name(opName.data, opName.length);
std::optional<RegisteredOperationName> info =
RegisteredOperationName::lookup(name, unwrap(context));
return info;
}
std::optional<Location> maybeGetLocation(MlirLocation location) {
std::optional<Location> maybeLocation;
if (!mlirLocationIsNull(location))
maybeLocation = unwrap(location);
return maybeLocation;
}
SmallVector<Value> unwrapOperands(intptr_t nOperands, MlirValue *operands) {
SmallVector<Value> unwrappedOperands;
(void)unwrapList(nOperands, operands, unwrappedOperands);
return unwrappedOperands;
}
DictionaryAttr unwrapAttributes(MlirAttribute attributes) {
DictionaryAttr attributeDict;
if (!mlirAttributeIsNull(attributes))
attributeDict = llvm::cast<DictionaryAttr>(unwrap(attributes));
return attributeDict;
}
SmallVector<std::unique_ptr<Region>> unwrapRegions(intptr_t nRegions,
MlirRegion *regions) {
// Create a vector of unique pointers to regions and make sure they are not
// deleted when exiting the scope. This is a hack caused by C++ API expecting
// an list of unique pointers to regions (without ownership transfer
// semantics) and C API making ownership transfer explicit.
SmallVector<std::unique_ptr<Region>> unwrappedRegions;
unwrappedRegions.reserve(nRegions);
for (intptr_t i = 0; i < nRegions; ++i)
unwrappedRegions.emplace_back(unwrap(*(regions + i)));
auto cleaner = llvm::make_scope_exit([&]() {
for (auto ®ion : unwrappedRegions)
region.release();
});
return unwrappedRegions;
}
} // namespace
bool mlirOperationImplementsInterface(MlirOperation operation,
MlirTypeID interfaceTypeID) {
std::optional<RegisteredOperationName> info =
unwrap(operation)->getRegisteredInfo();
return info && info->hasInterface(unwrap(interfaceTypeID));
}
bool mlirOperationImplementsInterfaceStatic(MlirStringRef operationName,
MlirContext context,
MlirTypeID interfaceTypeID) {
std::optional<RegisteredOperationName> info = RegisteredOperationName::lookup(
StringRef(operationName.data, operationName.length), unwrap(context));
return info && info->hasInterface(unwrap(interfaceTypeID));
}
MlirTypeID mlirInferTypeOpInterfaceTypeID() {
return wrap(InferTypeOpInterface::getInterfaceID());
}
MlirLogicalResult mlirInferTypeOpInterfaceInferReturnTypes(
MlirStringRef opName, MlirContext context, MlirLocation location,
intptr_t nOperands, MlirValue *operands, MlirAttribute attributes,
void *properties, intptr_t nRegions, MlirRegion *regions,
MlirTypesCallback callback, void *userData) {
StringRef name(opName.data, opName.length);
std::optional<RegisteredOperationName> info =
getRegisteredOperationName(context, opName);
if (!info)
return mlirLogicalResultFailure();
std::optional<Location> maybeLocation = maybeGetLocation(location);
SmallVector<Value> unwrappedOperands = unwrapOperands(nOperands, operands);
DictionaryAttr attributeDict = unwrapAttributes(attributes);
SmallVector<std::unique_ptr<Region>> unwrappedRegions =
unwrapRegions(nRegions, regions);
SmallVector<Type> inferredTypes;
if (failed(info->getInterface<InferTypeOpInterface>()->inferReturnTypes(
unwrap(context), maybeLocation, unwrappedOperands, attributeDict,
properties, unwrappedRegions, inferredTypes)))
return mlirLogicalResultFailure();
SmallVector<MlirType> wrappedInferredTypes;
wrappedInferredTypes.reserve(inferredTypes.size());
for (Type t : inferredTypes)
wrappedInferredTypes.push_back(wrap(t));
callback(wrappedInferredTypes.size(), wrappedInferredTypes.data(), userData);
return mlirLogicalResultSuccess();
}
MlirTypeID mlirInferShapedTypeOpInterfaceTypeID() {
return wrap(InferShapedTypeOpInterface::getInterfaceID());
}
MlirLogicalResult mlirInferShapedTypeOpInterfaceInferReturnTypes(
MlirStringRef opName, MlirContext context, MlirLocation location,
intptr_t nOperands, MlirValue *operands, MlirAttribute attributes,
void *properties, intptr_t nRegions, MlirRegion *regions,
MlirShapedTypeComponentsCallback callback, void *userData) {
std::optional<RegisteredOperationName> info =
getRegisteredOperationName(context, opName);
if (!info)
return mlirLogicalResultFailure();
std::optional<Location> maybeLocation = maybeGetLocation(location);
SmallVector<Value> unwrappedOperands = unwrapOperands(nOperands, operands);
DictionaryAttr attributeDict = unwrapAttributes(attributes);
SmallVector<std::unique_ptr<Region>> unwrappedRegions =
unwrapRegions(nRegions, regions);
SmallVector<ShapedTypeComponents> inferredTypeComponents;
if (failed(info->getInterface<InferShapedTypeOpInterface>()
->inferReturnTypeComponents(
unwrap(context), maybeLocation,
mlir::ValueRange(llvm::ArrayRef(unwrappedOperands)),
attributeDict, properties, unwrappedRegions,
inferredTypeComponents)))
return mlirLogicalResultFailure();
bool hasRank;
intptr_t rank;
const int64_t *shapeData;
for (const ShapedTypeComponents &t : inferredTypeComponents) {
if (t.hasRank()) {
hasRank = true;
rank = t.getDims().size();
shapeData = t.getDims().data();
} else {
hasRank = false;
rank = 0;
shapeData = nullptr;
}
callback(hasRank, rank, shapeData, wrap(t.getElementType()),
wrap(t.getAttribute()), userData);
}
return mlirLogicalResultSuccess();
}
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