c0cd1f1c5c
This simplifies a lot of handling of BoolAttr/IntegerAttr. For example, a lot of places currently have to handle both IntegerAttr and BoolAttr. In other places, a decision is made to pick one which can lead to surprising results for users. For example, DenseElementsAttr currently uses BoolAttr for i1 even if the user initialized it with an Array of i1 IntegerAttrs. Differential Revision: https://reviews.llvm.org/D81047
1471 lines
58 KiB
C++
1471 lines
58 KiB
C++
//===- Attributes.cpp - MLIR Affine Expr Classes --------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/IR/Attributes.h"
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#include "AttributeDetail.h"
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#include "mlir/IR/AffineMap.h"
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#include "mlir/IR/Diagnostics.h"
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#include "mlir/IR/Dialect.h"
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#include "mlir/IR/Function.h"
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#include "mlir/IR/IntegerSet.h"
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#include "mlir/IR/Types.h"
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#include "llvm/ADT/Sequence.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/Endian.h"
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using namespace mlir;
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using namespace mlir::detail;
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//===----------------------------------------------------------------------===//
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// AttributeStorage
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//===----------------------------------------------------------------------===//
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AttributeStorage::AttributeStorage(Type type)
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: type(type.getAsOpaquePointer()) {}
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AttributeStorage::AttributeStorage() : type(nullptr) {}
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Type AttributeStorage::getType() const {
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return Type::getFromOpaquePointer(type);
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}
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void AttributeStorage::setType(Type newType) {
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type = newType.getAsOpaquePointer();
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}
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//===----------------------------------------------------------------------===//
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// Attribute
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//===----------------------------------------------------------------------===//
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/// Return the type of this attribute.
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Type Attribute::getType() const { return impl->getType(); }
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/// Return the context this attribute belongs to.
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MLIRContext *Attribute::getContext() const { return getType().getContext(); }
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/// Get the dialect this attribute is registered to.
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Dialect &Attribute::getDialect() const { return impl->getDialect(); }
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//===----------------------------------------------------------------------===//
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// AffineMapAttr
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//===----------------------------------------------------------------------===//
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AffineMapAttr AffineMapAttr::get(AffineMap value) {
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return Base::get(value.getContext(), StandardAttributes::AffineMap, value);
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}
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AffineMap AffineMapAttr::getValue() const { return getImpl()->value; }
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//===----------------------------------------------------------------------===//
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// ArrayAttr
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//===----------------------------------------------------------------------===//
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ArrayAttr ArrayAttr::get(ArrayRef<Attribute> value, MLIRContext *context) {
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return Base::get(context, StandardAttributes::Array, value);
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}
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ArrayRef<Attribute> ArrayAttr::getValue() const { return getImpl()->value; }
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Attribute ArrayAttr::operator[](unsigned idx) const {
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assert(idx < size() && "index out of bounds");
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return getValue()[idx];
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}
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//===----------------------------------------------------------------------===//
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// DictionaryAttr
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//===----------------------------------------------------------------------===//
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/// Helper function that does either an in place sort or sorts from source array
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/// into destination. If inPlace then storage is both the source and the
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/// destination, else value is the source and storage destination. Returns
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/// whether source was sorted.
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template <bool inPlace>
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static bool dictionaryAttrSort(ArrayRef<NamedAttribute> value,
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SmallVectorImpl<NamedAttribute> &storage) {
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// Specialize for the common case.
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switch (value.size()) {
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case 0:
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// Zero already sorted.
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break;
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case 1:
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// One already sorted but may need to be copied.
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if (!inPlace)
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storage.assign({value[0]});
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break;
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case 2: {
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assert(value[0].first != value[1].first &&
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"DictionaryAttr element names must be unique");
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bool isSorted = value[0] < value[1];
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if (inPlace) {
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if (!isSorted)
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std::swap(storage[0], storage[1]);
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} else if (isSorted) {
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storage.assign({value[0], value[1]});
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} else {
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storage.assign({value[1], value[0]});
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}
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return !isSorted;
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}
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default:
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if (!inPlace)
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storage.assign(value.begin(), value.end());
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// Check to see they are sorted already.
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bool isSorted = llvm::is_sorted(value);
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if (!isSorted) {
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// If not, do a general sort.
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llvm::array_pod_sort(storage.begin(), storage.end());
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value = storage;
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}
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// Ensure that the attribute elements are unique.
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assert(std::adjacent_find(value.begin(), value.end(),
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[](NamedAttribute l, NamedAttribute r) {
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return l.first == r.first;
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}) == value.end() &&
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"DictionaryAttr element names must be unique");
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return !isSorted;
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}
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return false;
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}
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bool DictionaryAttr::sort(ArrayRef<NamedAttribute> value,
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SmallVectorImpl<NamedAttribute> &storage) {
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return dictionaryAttrSort</*inPlace=*/false>(value, storage);
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}
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bool DictionaryAttr::sortInPlace(SmallVectorImpl<NamedAttribute> &array) {
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return dictionaryAttrSort</*inPlace=*/true>(array, array);
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}
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DictionaryAttr DictionaryAttr::get(ArrayRef<NamedAttribute> value,
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MLIRContext *context) {
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if (value.empty())
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return DictionaryAttr::getEmpty(context);
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assert(llvm::all_of(value,
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[](const NamedAttribute &attr) { return attr.second; }) &&
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"value cannot have null entries");
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// We need to sort the element list to canonicalize it.
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SmallVector<NamedAttribute, 8> storage;
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if (dictionaryAttrSort</*inPlace=*/false>(value, storage))
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value = storage;
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return Base::get(context, StandardAttributes::Dictionary, value);
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}
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/// Construct a dictionary with an array of values that is known to already be
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/// sorted by name and uniqued.
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DictionaryAttr DictionaryAttr::getWithSorted(ArrayRef<NamedAttribute> value,
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MLIRContext *context) {
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if (value.empty())
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return DictionaryAttr::getEmpty(context);
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// Ensure that the attribute elements are unique and sorted.
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assert(llvm::is_sorted(value,
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[](NamedAttribute l, NamedAttribute r) {
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return l.first.strref() < r.first.strref();
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}) &&
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"expected attribute values to be sorted");
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assert(std::adjacent_find(value.begin(), value.end(),
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[](NamedAttribute l, NamedAttribute r) {
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return l.first == r.first;
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}) == value.end() &&
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"DictionaryAttr element names must be unique");
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return Base::get(context, StandardAttributes::Dictionary, value);
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}
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ArrayRef<NamedAttribute> DictionaryAttr::getValue() const {
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return getImpl()->getElements();
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}
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/// Return the specified attribute if present, null otherwise.
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Attribute DictionaryAttr::get(StringRef name) const {
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Optional<NamedAttribute> attr = getNamed(name);
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return attr ? attr->second : nullptr;
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}
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Attribute DictionaryAttr::get(Identifier name) const {
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Optional<NamedAttribute> attr = getNamed(name);
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return attr ? attr->second : nullptr;
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}
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/// Return the specified named attribute if present, None otherwise.
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Optional<NamedAttribute> DictionaryAttr::getNamed(StringRef name) const {
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ArrayRef<NamedAttribute> values = getValue();
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const auto *it = llvm::lower_bound(values, name);
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return it != values.end() && it->first == name ? *it
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: Optional<NamedAttribute>();
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}
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Optional<NamedAttribute> DictionaryAttr::getNamed(Identifier name) const {
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for (auto elt : getValue())
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if (elt.first == name)
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return elt;
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return llvm::None;
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}
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DictionaryAttr::iterator DictionaryAttr::begin() const {
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return getValue().begin();
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}
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DictionaryAttr::iterator DictionaryAttr::end() const {
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return getValue().end();
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}
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size_t DictionaryAttr::size() const { return getValue().size(); }
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//===----------------------------------------------------------------------===//
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// FloatAttr
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//===----------------------------------------------------------------------===//
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FloatAttr FloatAttr::get(Type type, double value) {
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return Base::get(type.getContext(), StandardAttributes::Float, type, value);
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}
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FloatAttr FloatAttr::getChecked(Type type, double value, Location loc) {
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return Base::getChecked(loc, StandardAttributes::Float, type, value);
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}
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FloatAttr FloatAttr::get(Type type, const APFloat &value) {
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return Base::get(type.getContext(), StandardAttributes::Float, type, value);
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}
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FloatAttr FloatAttr::getChecked(Type type, const APFloat &value, Location loc) {
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return Base::getChecked(loc, StandardAttributes::Float, type, value);
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}
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APFloat FloatAttr::getValue() const { return getImpl()->getValue(); }
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double FloatAttr::getValueAsDouble() const {
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return getValueAsDouble(getValue());
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}
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double FloatAttr::getValueAsDouble(APFloat value) {
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if (&value.getSemantics() != &APFloat::IEEEdouble()) {
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bool losesInfo = false;
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value.convert(APFloat::IEEEdouble(), APFloat::rmNearestTiesToEven,
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&losesInfo);
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}
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return value.convertToDouble();
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}
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/// Verify construction invariants.
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static LogicalResult verifyFloatTypeInvariants(Location loc, Type type) {
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if (!type.isa<FloatType>())
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return emitError(loc, "expected floating point type");
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return success();
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}
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LogicalResult FloatAttr::verifyConstructionInvariants(Location loc, Type type,
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double value) {
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return verifyFloatTypeInvariants(loc, type);
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}
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LogicalResult FloatAttr::verifyConstructionInvariants(Location loc, Type type,
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const APFloat &value) {
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// Verify that the type is correct.
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if (failed(verifyFloatTypeInvariants(loc, type)))
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return failure();
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// Verify that the type semantics match that of the value.
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if (&type.cast<FloatType>().getFloatSemantics() != &value.getSemantics()) {
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return emitError(
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loc, "FloatAttr type doesn't match the type implied by its value");
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}
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return success();
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}
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//===----------------------------------------------------------------------===//
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// SymbolRefAttr
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//===----------------------------------------------------------------------===//
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FlatSymbolRefAttr SymbolRefAttr::get(StringRef value, MLIRContext *ctx) {
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return Base::get(ctx, StandardAttributes::SymbolRef, value, llvm::None)
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.cast<FlatSymbolRefAttr>();
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}
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SymbolRefAttr SymbolRefAttr::get(StringRef value,
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ArrayRef<FlatSymbolRefAttr> nestedReferences,
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MLIRContext *ctx) {
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return Base::get(ctx, StandardAttributes::SymbolRef, value, nestedReferences);
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}
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StringRef SymbolRefAttr::getRootReference() const { return getImpl()->value; }
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StringRef SymbolRefAttr::getLeafReference() const {
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ArrayRef<FlatSymbolRefAttr> nestedRefs = getNestedReferences();
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return nestedRefs.empty() ? getRootReference() : nestedRefs.back().getValue();
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}
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ArrayRef<FlatSymbolRefAttr> SymbolRefAttr::getNestedReferences() const {
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return getImpl()->getNestedRefs();
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}
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//===----------------------------------------------------------------------===//
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// IntegerAttr
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//===----------------------------------------------------------------------===//
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IntegerAttr IntegerAttr::get(Type type, const APInt &value) {
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if (type.isSignlessInteger(1))
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return BoolAttr::get(value.getBoolValue(), type.getContext());
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return Base::get(type.getContext(), StandardAttributes::Integer, type, value);
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}
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IntegerAttr IntegerAttr::get(Type type, int64_t value) {
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// This uses 64 bit APInts by default for index type.
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if (type.isIndex())
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return get(type, APInt(IndexType::kInternalStorageBitWidth, value));
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auto intType = type.cast<IntegerType>();
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return get(type, APInt(intType.getWidth(), value, intType.isSignedInteger()));
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}
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APInt IntegerAttr::getValue() const { return getImpl()->getValue(); }
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int64_t IntegerAttr::getInt() const {
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assert((getImpl()->getType().isIndex() ||
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getImpl()->getType().isSignlessInteger()) &&
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"must be signless integer");
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return getValue().getSExtValue();
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}
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int64_t IntegerAttr::getSInt() const {
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assert(getImpl()->getType().isSignedInteger() && "must be signed integer");
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return getValue().getSExtValue();
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}
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uint64_t IntegerAttr::getUInt() const {
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assert(getImpl()->getType().isUnsignedInteger() &&
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"must be unsigned integer");
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return getValue().getZExtValue();
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}
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static LogicalResult verifyIntegerTypeInvariants(Location loc, Type type) {
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if (type.isa<IntegerType>() || type.isa<IndexType>())
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return success();
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return emitError(loc, "expected integer or index type");
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}
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LogicalResult IntegerAttr::verifyConstructionInvariants(Location loc, Type type,
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int64_t value) {
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return verifyIntegerTypeInvariants(loc, type);
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}
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LogicalResult IntegerAttr::verifyConstructionInvariants(Location loc, Type type,
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const APInt &value) {
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if (failed(verifyIntegerTypeInvariants(loc, type)))
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return failure();
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if (auto integerType = type.dyn_cast<IntegerType>())
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if (integerType.getWidth() != value.getBitWidth())
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return emitError(loc, "integer type bit width (")
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<< integerType.getWidth() << ") doesn't match value bit width ("
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<< value.getBitWidth() << ")";
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return success();
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}
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//===----------------------------------------------------------------------===//
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// BoolAttr
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bool BoolAttr::getValue() const {
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auto *storage = reinterpret_cast<IntegerAttributeStorage *>(impl);
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return storage->getValue().getBoolValue();
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}
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bool BoolAttr::classof(Attribute attr) {
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IntegerAttr intAttr = attr.dyn_cast<IntegerAttr>();
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return intAttr && intAttr.getType().isSignlessInteger(1);
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}
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//===----------------------------------------------------------------------===//
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// IntegerSetAttr
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//===----------------------------------------------------------------------===//
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IntegerSetAttr IntegerSetAttr::get(IntegerSet value) {
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return Base::get(value.getConstraint(0).getContext(),
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StandardAttributes::IntegerSet, value);
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}
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IntegerSet IntegerSetAttr::getValue() const { return getImpl()->value; }
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//===----------------------------------------------------------------------===//
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// OpaqueAttr
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//===----------------------------------------------------------------------===//
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OpaqueAttr OpaqueAttr::get(Identifier dialect, StringRef attrData, Type type,
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MLIRContext *context) {
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return Base::get(context, StandardAttributes::Opaque, dialect, attrData,
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type);
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}
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OpaqueAttr OpaqueAttr::getChecked(Identifier dialect, StringRef attrData,
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Type type, Location location) {
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return Base::getChecked(location, StandardAttributes::Opaque, dialect,
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attrData, type);
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}
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/// Returns the dialect namespace of the opaque attribute.
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Identifier OpaqueAttr::getDialectNamespace() const {
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return getImpl()->dialectNamespace;
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}
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/// Returns the raw attribute data of the opaque attribute.
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StringRef OpaqueAttr::getAttrData() const { return getImpl()->attrData; }
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/// Verify the construction of an opaque attribute.
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LogicalResult OpaqueAttr::verifyConstructionInvariants(Location loc,
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Identifier dialect,
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StringRef attrData,
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Type type) {
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if (!Dialect::isValidNamespace(dialect.strref()))
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return emitError(loc, "invalid dialect namespace '") << dialect << "'";
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return success();
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}
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//===----------------------------------------------------------------------===//
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// StringAttr
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//===----------------------------------------------------------------------===//
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StringAttr StringAttr::get(StringRef bytes, MLIRContext *context) {
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return get(bytes, NoneType::get(context));
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}
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/// Get an instance of a StringAttr with the given string and Type.
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StringAttr StringAttr::get(StringRef bytes, Type type) {
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return Base::get(type.getContext(), StandardAttributes::String, bytes, type);
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}
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StringRef StringAttr::getValue() const { return getImpl()->value; }
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//===----------------------------------------------------------------------===//
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// TypeAttr
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//===----------------------------------------------------------------------===//
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TypeAttr TypeAttr::get(Type value) {
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return Base::get(value.getContext(), StandardAttributes::Type, value);
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}
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Type TypeAttr::getValue() const { return getImpl()->value; }
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//===----------------------------------------------------------------------===//
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// ElementsAttr
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//===----------------------------------------------------------------------===//
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ShapedType ElementsAttr::getType() const {
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return Attribute::getType().cast<ShapedType>();
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}
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/// Returns the number of elements held by this attribute.
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int64_t ElementsAttr::getNumElements() const {
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return getType().getNumElements();
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}
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/// Return the value at the given index. If index does not refer to a valid
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/// element, then a null attribute is returned.
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Attribute ElementsAttr::getValue(ArrayRef<uint64_t> index) const {
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switch (getKind()) {
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case StandardAttributes::DenseIntOrFPElements:
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return cast<DenseElementsAttr>().getValue(index);
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case StandardAttributes::OpaqueElements:
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return cast<OpaqueElementsAttr>().getValue(index);
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case StandardAttributes::SparseElements:
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return cast<SparseElementsAttr>().getValue(index);
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default:
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llvm_unreachable("unknown ElementsAttr kind");
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}
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}
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/// Return if the given 'index' refers to a valid element in this attribute.
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bool ElementsAttr::isValidIndex(ArrayRef<uint64_t> index) const {
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auto type = getType();
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// Verify that the rank of the indices matches the held type.
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auto rank = type.getRank();
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if (rank != static_cast<int64_t>(index.size()))
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return false;
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// Verify that all of the indices are within the shape dimensions.
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auto shape = type.getShape();
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return llvm::all_of(llvm::seq<int>(0, rank), [&](int i) {
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return static_cast<int64_t>(index[i]) < shape[i];
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});
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}
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ElementsAttr
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ElementsAttr::mapValues(Type newElementType,
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function_ref<APInt(const APInt &)> mapping) const {
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switch (getKind()) {
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case StandardAttributes::DenseIntOrFPElements:
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return cast<DenseElementsAttr>().mapValues(newElementType, mapping);
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default:
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llvm_unreachable("unsupported ElementsAttr subtype");
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}
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}
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ElementsAttr
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ElementsAttr::mapValues(Type newElementType,
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function_ref<APInt(const APFloat &)> mapping) const {
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switch (getKind()) {
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case StandardAttributes::DenseIntOrFPElements:
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return cast<DenseElementsAttr>().mapValues(newElementType, mapping);
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default:
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llvm_unreachable("unsupported ElementsAttr subtype");
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}
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}
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/// Returns the 1 dimensional flattened row-major index from the given
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/// multi-dimensional index.
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uint64_t ElementsAttr::getFlattenedIndex(ArrayRef<uint64_t> index) const {
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assert(isValidIndex(index) && "expected valid multi-dimensional index");
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auto type = getType();
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// Reduce the provided multidimensional index into a flattended 1D row-major
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// index.
|
|
auto rank = type.getRank();
|
|
auto shape = type.getShape();
|
|
uint64_t valueIndex = 0;
|
|
uint64_t dimMultiplier = 1;
|
|
for (int i = rank - 1; i >= 0; --i) {
|
|
valueIndex += index[i] * dimMultiplier;
|
|
dimMultiplier *= shape[i];
|
|
}
|
|
return valueIndex;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseElementAttr Utilities
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// Get the bitwidth of a dense element type within the buffer.
|
|
/// DenseElementsAttr requires bitwidths greater than 1 to be aligned by 8.
|
|
static size_t getDenseElementStorageWidth(size_t origWidth) {
|
|
return origWidth == 1 ? origWidth : llvm::alignTo<8>(origWidth);
|
|
}
|
|
static size_t getDenseElementStorageWidth(Type elementType) {
|
|
return getDenseElementStorageWidth(getDenseElementBitWidth(elementType));
|
|
}
|
|
|
|
/// Set a bit to a specific value.
|
|
static void setBit(char *rawData, size_t bitPos, bool value) {
|
|
if (value)
|
|
rawData[bitPos / CHAR_BIT] |= (1 << (bitPos % CHAR_BIT));
|
|
else
|
|
rawData[bitPos / CHAR_BIT] &= ~(1 << (bitPos % CHAR_BIT));
|
|
}
|
|
|
|
/// Return the value of the specified bit.
|
|
static bool getBit(const char *rawData, size_t bitPos) {
|
|
return (rawData[bitPos / CHAR_BIT] & (1 << (bitPos % CHAR_BIT))) != 0;
|
|
}
|
|
|
|
/// Get start position of actual data in `value`. Actual data is
|
|
/// stored in last `bitWidth`/CHAR_BIT bytes in big endian.
|
|
static char *getAPIntDataPos(APInt &value, size_t bitWidth) {
|
|
char *dataPos =
|
|
const_cast<char *>(reinterpret_cast<const char *>(value.getRawData()));
|
|
if (llvm::support::endian::system_endianness() ==
|
|
llvm::support::endianness::big)
|
|
dataPos = dataPos + 8 - llvm::divideCeil(bitWidth, CHAR_BIT);
|
|
return dataPos;
|
|
}
|
|
|
|
/// Read APInt `value` from appropriate position.
|
|
static void readAPInt(APInt &value, size_t bitWidth, char *outData) {
|
|
char *dataPos = getAPIntDataPos(value, bitWidth);
|
|
std::copy_n(dataPos, llvm::divideCeil(bitWidth, CHAR_BIT), outData);
|
|
}
|
|
|
|
/// Write `inData` to appropriate position of APInt `value`.
|
|
static void writeAPInt(const char *inData, size_t bitWidth, APInt &value) {
|
|
char *dataPos = getAPIntDataPos(value, bitWidth);
|
|
std::copy_n(inData, llvm::divideCeil(bitWidth, CHAR_BIT), dataPos);
|
|
}
|
|
|
|
/// Writes value to the bit position `bitPos` in array `rawData`.
|
|
static void writeBits(char *rawData, size_t bitPos, APInt value) {
|
|
size_t bitWidth = value.getBitWidth();
|
|
|
|
// If the bitwidth is 1 we just toggle the specific bit.
|
|
if (bitWidth == 1)
|
|
return setBit(rawData, bitPos, value.isOneValue());
|
|
|
|
// Otherwise, the bit position is guaranteed to be byte aligned.
|
|
assert((bitPos % CHAR_BIT) == 0 && "expected bitPos to be 8-bit aligned");
|
|
readAPInt(value, bitWidth, rawData + (bitPos / CHAR_BIT));
|
|
}
|
|
|
|
/// Reads the next `bitWidth` bits from the bit position `bitPos` in array
|
|
/// `rawData`.
|
|
static APInt readBits(const char *rawData, size_t bitPos, size_t bitWidth) {
|
|
// Handle a boolean bit position.
|
|
if (bitWidth == 1)
|
|
return APInt(1, getBit(rawData, bitPos) ? 1 : 0);
|
|
|
|
// Otherwise, the bit position must be 8-bit aligned.
|
|
assert((bitPos % CHAR_BIT) == 0 && "expected bitPos to be 8-bit aligned");
|
|
APInt result(bitWidth, 0);
|
|
writeAPInt(rawData + (bitPos / CHAR_BIT), bitWidth, result);
|
|
return result;
|
|
}
|
|
|
|
/// Returns if 'values' corresponds to a splat, i.e. one element, or has the
|
|
/// same element count as 'type'.
|
|
template <typename Values>
|
|
static bool hasSameElementsOrSplat(ShapedType type, const Values &values) {
|
|
return (values.size() == 1) ||
|
|
(type.getNumElements() == static_cast<int64_t>(values.size()));
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseElementAttr Iterators
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// AttributeElementIterator
|
|
|
|
DenseElementsAttr::AttributeElementIterator::AttributeElementIterator(
|
|
DenseElementsAttr attr, size_t index)
|
|
: llvm::indexed_accessor_iterator<AttributeElementIterator, const void *,
|
|
Attribute, Attribute, Attribute>(
|
|
attr.getAsOpaquePointer(), index) {}
|
|
|
|
Attribute DenseElementsAttr::AttributeElementIterator::operator*() const {
|
|
auto owner = getFromOpaquePointer(base).cast<DenseElementsAttr>();
|
|
Type eltTy = owner.getType().getElementType();
|
|
if (auto intEltTy = eltTy.dyn_cast<IntegerType>())
|
|
return IntegerAttr::get(eltTy, *IntElementIterator(owner, index));
|
|
if (eltTy.isa<IndexType>())
|
|
return IntegerAttr::get(eltTy, *IntElementIterator(owner, index));
|
|
if (auto floatEltTy = eltTy.dyn_cast<FloatType>()) {
|
|
IntElementIterator intIt(owner, index);
|
|
FloatElementIterator floatIt(floatEltTy.getFloatSemantics(), intIt);
|
|
return FloatAttr::get(eltTy, *floatIt);
|
|
}
|
|
if (owner.isa<DenseStringElementsAttr>()) {
|
|
ArrayRef<StringRef> vals = owner.getRawStringData();
|
|
return StringAttr::get(owner.isSplat() ? vals.front() : vals[index], eltTy);
|
|
}
|
|
llvm_unreachable("unexpected element type");
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// BoolElementIterator
|
|
|
|
DenseElementsAttr::BoolElementIterator::BoolElementIterator(
|
|
DenseElementsAttr attr, size_t dataIndex)
|
|
: DenseElementIndexedIteratorImpl<BoolElementIterator, bool, bool, bool>(
|
|
attr.getRawData().data(), attr.isSplat(), dataIndex) {}
|
|
|
|
bool DenseElementsAttr::BoolElementIterator::operator*() const {
|
|
return getBit(getData(), getDataIndex());
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// IntElementIterator
|
|
|
|
DenseElementsAttr::IntElementIterator::IntElementIterator(
|
|
DenseElementsAttr attr, size_t dataIndex)
|
|
: DenseElementIndexedIteratorImpl<IntElementIterator, APInt, APInt, APInt>(
|
|
attr.getRawData().data(), attr.isSplat(), dataIndex),
|
|
bitWidth(getDenseElementBitWidth(attr.getType().getElementType())) {}
|
|
|
|
APInt DenseElementsAttr::IntElementIterator::operator*() const {
|
|
return readBits(getData(),
|
|
getDataIndex() * getDenseElementStorageWidth(bitWidth),
|
|
bitWidth);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ComplexIntElementIterator
|
|
|
|
DenseElementsAttr::ComplexIntElementIterator::ComplexIntElementIterator(
|
|
DenseElementsAttr attr, size_t dataIndex)
|
|
: DenseElementIndexedIteratorImpl<ComplexIntElementIterator,
|
|
std::complex<APInt>, std::complex<APInt>,
|
|
std::complex<APInt>>(
|
|
attr.getRawData().data(), attr.isSplat(), dataIndex) {
|
|
auto complexType = attr.getType().getElementType().cast<ComplexType>();
|
|
bitWidth = getDenseElementBitWidth(complexType.getElementType());
|
|
}
|
|
|
|
std::complex<APInt>
|
|
DenseElementsAttr::ComplexIntElementIterator::operator*() const {
|
|
size_t storageWidth = getDenseElementStorageWidth(bitWidth);
|
|
size_t offset = getDataIndex() * storageWidth * 2;
|
|
return {readBits(getData(), offset, bitWidth),
|
|
readBits(getData(), offset + storageWidth, bitWidth)};
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FloatElementIterator
|
|
|
|
DenseElementsAttr::FloatElementIterator::FloatElementIterator(
|
|
const llvm::fltSemantics &smt, IntElementIterator it)
|
|
: llvm::mapped_iterator<IntElementIterator,
|
|
std::function<APFloat(const APInt &)>>(
|
|
it, [&](const APInt &val) { return APFloat(smt, val); }) {}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ComplexFloatElementIterator
|
|
|
|
DenseElementsAttr::ComplexFloatElementIterator::ComplexFloatElementIterator(
|
|
const llvm::fltSemantics &smt, ComplexIntElementIterator it)
|
|
: llvm::mapped_iterator<
|
|
ComplexIntElementIterator,
|
|
std::function<std::complex<APFloat>(const std::complex<APInt> &)>>(
|
|
it, [&](const std::complex<APInt> &val) -> std::complex<APFloat> {
|
|
return {APFloat(smt, val.real()), APFloat(smt, val.imag())};
|
|
}) {}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
DenseElementsAttr DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<Attribute> values) {
|
|
assert(hasSameElementsOrSplat(type, values));
|
|
|
|
// If the element type is not based on int/float/index, assume it is a string
|
|
// type.
|
|
auto eltType = type.getElementType();
|
|
if (!type.getElementType().isIntOrIndexOrFloat()) {
|
|
SmallVector<StringRef, 8> stringValues;
|
|
stringValues.reserve(values.size());
|
|
for (Attribute attr : values) {
|
|
assert(attr.isa<StringAttr>() &&
|
|
"expected string value for non integer/index/float element");
|
|
stringValues.push_back(attr.cast<StringAttr>().getValue());
|
|
}
|
|
return get(type, stringValues);
|
|
}
|
|
|
|
// Otherwise, get the raw storage width to use for the allocation.
|
|
size_t bitWidth = getDenseElementBitWidth(eltType);
|
|
size_t storageBitWidth = getDenseElementStorageWidth(bitWidth);
|
|
|
|
// Compress the attribute values into a character buffer.
|
|
SmallVector<char, 8> data(llvm::divideCeil(storageBitWidth, CHAR_BIT) *
|
|
values.size());
|
|
APInt intVal;
|
|
for (unsigned i = 0, e = values.size(); i < e; ++i) {
|
|
assert(eltType == values[i].getType() &&
|
|
"expected attribute value to have element type");
|
|
|
|
switch (eltType.getKind()) {
|
|
case StandardTypes::BF16:
|
|
case StandardTypes::F16:
|
|
case StandardTypes::F32:
|
|
case StandardTypes::F64:
|
|
intVal = values[i].cast<FloatAttr>().getValue().bitcastToAPInt();
|
|
break;
|
|
case StandardTypes::Integer:
|
|
case StandardTypes::Index:
|
|
intVal = values[i].cast<IntegerAttr>().getValue();
|
|
break;
|
|
default:
|
|
llvm_unreachable("unexpected element type");
|
|
}
|
|
assert(intVal.getBitWidth() == bitWidth &&
|
|
"expected value to have same bitwidth as element type");
|
|
writeBits(data.data(), i * storageBitWidth, intVal);
|
|
}
|
|
return DenseIntOrFPElementsAttr::getRaw(type, data,
|
|
/*isSplat=*/(values.size() == 1));
|
|
}
|
|
|
|
DenseElementsAttr DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<bool> values) {
|
|
assert(hasSameElementsOrSplat(type, values));
|
|
assert(type.getElementType().isInteger(1));
|
|
|
|
std::vector<char> buff(llvm::divideCeil(values.size(), CHAR_BIT));
|
|
for (int i = 0, e = values.size(); i != e; ++i)
|
|
setBit(buff.data(), i, values[i]);
|
|
return DenseIntOrFPElementsAttr::getRaw(type, buff,
|
|
/*isSplat=*/(values.size() == 1));
|
|
}
|
|
|
|
DenseElementsAttr DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<StringRef> values) {
|
|
assert(!type.getElementType().isIntOrFloat());
|
|
return DenseStringElementsAttr::get(type, values);
|
|
}
|
|
|
|
/// Constructs a dense integer elements attribute from an array of APInt
|
|
/// values. Each APInt value is expected to have the same bitwidth as the
|
|
/// element type of 'type'.
|
|
DenseElementsAttr DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<APInt> values) {
|
|
assert(type.getElementType().isIntOrIndex());
|
|
assert(hasSameElementsOrSplat(type, values));
|
|
size_t storageBitWidth = getDenseElementStorageWidth(type.getElementType());
|
|
return DenseIntOrFPElementsAttr::getRaw(type, storageBitWidth, values,
|
|
/*isSplat=*/(values.size() == 1));
|
|
}
|
|
DenseElementsAttr DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<std::complex<APInt>> values) {
|
|
ComplexType complex = type.getElementType().cast<ComplexType>();
|
|
assert(complex.getElementType().isa<IntegerType>());
|
|
assert(hasSameElementsOrSplat(type, values));
|
|
size_t storageBitWidth = getDenseElementStorageWidth(complex) / 2;
|
|
ArrayRef<APInt> intVals(reinterpret_cast<const APInt *>(values.data()),
|
|
values.size() * 2);
|
|
return DenseIntOrFPElementsAttr::getRaw(type, storageBitWidth, intVals,
|
|
/*isSplat=*/(values.size() == 1));
|
|
}
|
|
|
|
// Constructs a dense float elements attribute from an array of APFloat
|
|
// values. Each APFloat value is expected to have the same bitwidth as the
|
|
// element type of 'type'.
|
|
DenseElementsAttr DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<APFloat> values) {
|
|
assert(type.getElementType().isa<FloatType>());
|
|
assert(hasSameElementsOrSplat(type, values));
|
|
size_t storageBitWidth = getDenseElementStorageWidth(type.getElementType());
|
|
return DenseIntOrFPElementsAttr::getRaw(type, storageBitWidth, values,
|
|
/*isSplat=*/(values.size() == 1));
|
|
}
|
|
DenseElementsAttr
|
|
DenseElementsAttr::get(ShapedType type,
|
|
ArrayRef<std::complex<APFloat>> values) {
|
|
ComplexType complex = type.getElementType().cast<ComplexType>();
|
|
assert(complex.getElementType().isa<FloatType>());
|
|
assert(hasSameElementsOrSplat(type, values));
|
|
ArrayRef<APFloat> apVals(reinterpret_cast<const APFloat *>(values.data()),
|
|
values.size() * 2);
|
|
size_t storageBitWidth = getDenseElementStorageWidth(complex) / 2;
|
|
return DenseIntOrFPElementsAttr::getRaw(type, storageBitWidth, apVals,
|
|
/*isSplat=*/(values.size() == 1));
|
|
}
|
|
|
|
/// Construct a dense elements attribute from a raw buffer representing the
|
|
/// data for this attribute. Users should generally not use this methods as
|
|
/// the expected buffer format may not be a form the user expects.
|
|
DenseElementsAttr DenseElementsAttr::getFromRawBuffer(ShapedType type,
|
|
ArrayRef<char> rawBuffer,
|
|
bool isSplatBuffer) {
|
|
return DenseIntOrFPElementsAttr::getRaw(type, rawBuffer, isSplatBuffer);
|
|
}
|
|
|
|
/// Returns true if the given buffer is a valid raw buffer for the given type.
|
|
bool DenseElementsAttr::isValidRawBuffer(ShapedType type,
|
|
ArrayRef<char> rawBuffer,
|
|
bool &detectedSplat) {
|
|
size_t storageWidth = getDenseElementStorageWidth(type.getElementType());
|
|
size_t rawBufferWidth = rawBuffer.size() * CHAR_BIT;
|
|
|
|
// Storage width of 1 is special as it is packed by the bit.
|
|
if (storageWidth == 1) {
|
|
// Check for a splat, or a buffer equal to the number of elements.
|
|
if ((detectedSplat = rawBuffer.size() == 1))
|
|
return true;
|
|
return rawBufferWidth == llvm::alignTo<8>(type.getNumElements());
|
|
}
|
|
// All other types are 8-bit aligned.
|
|
if ((detectedSplat = rawBufferWidth == storageWidth))
|
|
return true;
|
|
return rawBufferWidth == (storageWidth * type.getNumElements());
|
|
}
|
|
|
|
/// Check the information for a C++ data type, check if this type is valid for
|
|
/// the current attribute. This method is used to verify specific type
|
|
/// invariants that the templatized 'getValues' method cannot.
|
|
static bool isValidIntOrFloat(Type type, int64_t dataEltSize, bool isInt,
|
|
bool isSigned) {
|
|
// Make sure that the data element size is the same as the type element width.
|
|
if (getDenseElementBitWidth(type) !=
|
|
static_cast<size_t>(dataEltSize * CHAR_BIT))
|
|
return false;
|
|
|
|
// Check that the element type is either float or integer or index.
|
|
if (!isInt)
|
|
return type.isa<FloatType>();
|
|
if (type.isIndex())
|
|
return true;
|
|
|
|
auto intType = type.dyn_cast<IntegerType>();
|
|
if (!intType)
|
|
return false;
|
|
|
|
// Make sure signedness semantics is consistent.
|
|
if (intType.isSignless())
|
|
return true;
|
|
return intType.isSigned() ? isSigned : !isSigned;
|
|
}
|
|
|
|
/// Defaults down the subclass implementation.
|
|
DenseElementsAttr DenseElementsAttr::getRawComplex(ShapedType type,
|
|
ArrayRef<char> data,
|
|
int64_t dataEltSize,
|
|
bool isInt, bool isSigned) {
|
|
return DenseIntOrFPElementsAttr::getRawComplex(type, data, dataEltSize, isInt,
|
|
isSigned);
|
|
}
|
|
DenseElementsAttr DenseElementsAttr::getRawIntOrFloat(ShapedType type,
|
|
ArrayRef<char> data,
|
|
int64_t dataEltSize,
|
|
bool isInt,
|
|
bool isSigned) {
|
|
return DenseIntOrFPElementsAttr::getRawIntOrFloat(type, data, dataEltSize,
|
|
isInt, isSigned);
|
|
}
|
|
|
|
/// A method used to verify specific type invariants that the templatized 'get'
|
|
/// method cannot.
|
|
bool DenseElementsAttr::isValidIntOrFloat(int64_t dataEltSize, bool isInt,
|
|
bool isSigned) const {
|
|
return ::isValidIntOrFloat(getType().getElementType(), dataEltSize, isInt,
|
|
isSigned);
|
|
}
|
|
|
|
/// Check the information for a C++ data type, check if this type is valid for
|
|
/// the current attribute.
|
|
bool DenseElementsAttr::isValidComplex(int64_t dataEltSize, bool isInt,
|
|
bool isSigned) const {
|
|
return ::isValidIntOrFloat(
|
|
getType().getElementType().cast<ComplexType>().getElementType(),
|
|
dataEltSize / 2, isInt, isSigned);
|
|
}
|
|
|
|
/// Returns if this attribute corresponds to a splat, i.e. if all element
|
|
/// values are the same.
|
|
bool DenseElementsAttr::isSplat() const {
|
|
return static_cast<DenseElementsAttributeStorage *>(impl)->isSplat;
|
|
}
|
|
|
|
/// Return the held element values as a range of Attributes.
|
|
auto DenseElementsAttr::getAttributeValues() const
|
|
-> llvm::iterator_range<AttributeElementIterator> {
|
|
return {attr_value_begin(), attr_value_end()};
|
|
}
|
|
auto DenseElementsAttr::attr_value_begin() const -> AttributeElementIterator {
|
|
return AttributeElementIterator(*this, 0);
|
|
}
|
|
auto DenseElementsAttr::attr_value_end() const -> AttributeElementIterator {
|
|
return AttributeElementIterator(*this, getNumElements());
|
|
}
|
|
|
|
/// Return the held element values as a range of bool. The element type of
|
|
/// this attribute must be of integer type of bitwidth 1.
|
|
auto DenseElementsAttr::getBoolValues() const
|
|
-> llvm::iterator_range<BoolElementIterator> {
|
|
auto eltType = getType().getElementType().dyn_cast<IntegerType>();
|
|
assert(eltType && eltType.getWidth() == 1 && "expected i1 integer type");
|
|
(void)eltType;
|
|
return {BoolElementIterator(*this, 0),
|
|
BoolElementIterator(*this, getNumElements())};
|
|
}
|
|
|
|
/// Return the held element values as a range of APInts. The element type of
|
|
/// this attribute must be of integer type.
|
|
auto DenseElementsAttr::getIntValues() const
|
|
-> llvm::iterator_range<IntElementIterator> {
|
|
assert(getType().getElementType().isIntOrIndex() && "expected integral type");
|
|
return {raw_int_begin(), raw_int_end()};
|
|
}
|
|
auto DenseElementsAttr::int_value_begin() const -> IntElementIterator {
|
|
assert(getType().getElementType().isIntOrIndex() && "expected integral type");
|
|
return raw_int_begin();
|
|
}
|
|
auto DenseElementsAttr::int_value_end() const -> IntElementIterator {
|
|
assert(getType().getElementType().isIntOrIndex() && "expected integral type");
|
|
return raw_int_end();
|
|
}
|
|
auto DenseElementsAttr::getComplexIntValues() const
|
|
-> llvm::iterator_range<ComplexIntElementIterator> {
|
|
Type eltTy = getType().getElementType().cast<ComplexType>().getElementType();
|
|
(void)eltTy;
|
|
assert(eltTy.isa<IntegerType>() && "expected complex integral type");
|
|
return {ComplexIntElementIterator(*this, 0),
|
|
ComplexIntElementIterator(*this, getNumElements())};
|
|
}
|
|
|
|
/// Return the held element values as a range of APFloat. The element type of
|
|
/// this attribute must be of float type.
|
|
auto DenseElementsAttr::getFloatValues() const
|
|
-> llvm::iterator_range<FloatElementIterator> {
|
|
auto elementType = getType().getElementType().cast<FloatType>();
|
|
const auto &elementSemantics = elementType.getFloatSemantics();
|
|
return {FloatElementIterator(elementSemantics, raw_int_begin()),
|
|
FloatElementIterator(elementSemantics, raw_int_end())};
|
|
}
|
|
auto DenseElementsAttr::float_value_begin() const -> FloatElementIterator {
|
|
return getFloatValues().begin();
|
|
}
|
|
auto DenseElementsAttr::float_value_end() const -> FloatElementIterator {
|
|
return getFloatValues().end();
|
|
}
|
|
auto DenseElementsAttr::getComplexFloatValues() const
|
|
-> llvm::iterator_range<ComplexFloatElementIterator> {
|
|
Type eltTy = getType().getElementType().cast<ComplexType>().getElementType();
|
|
assert(eltTy.isa<FloatType>() && "expected complex float type");
|
|
const auto &semantics = eltTy.cast<FloatType>().getFloatSemantics();
|
|
return {{semantics, {*this, 0}},
|
|
{semantics, {*this, static_cast<size_t>(getNumElements())}}};
|
|
}
|
|
|
|
/// Return the raw storage data held by this attribute.
|
|
ArrayRef<char> DenseElementsAttr::getRawData() const {
|
|
return static_cast<DenseIntOrFPElementsAttributeStorage *>(impl)->data;
|
|
}
|
|
|
|
ArrayRef<StringRef> DenseElementsAttr::getRawStringData() const {
|
|
return static_cast<DenseStringElementsAttributeStorage *>(impl)->data;
|
|
}
|
|
|
|
/// Return a new DenseElementsAttr that has the same data as the current
|
|
/// attribute, but has been reshaped to 'newType'. The new type must have the
|
|
/// same total number of elements as well as element type.
|
|
DenseElementsAttr DenseElementsAttr::reshape(ShapedType newType) {
|
|
ShapedType curType = getType();
|
|
if (curType == newType)
|
|
return *this;
|
|
|
|
(void)curType;
|
|
assert(newType.getElementType() == curType.getElementType() &&
|
|
"expected the same element type");
|
|
assert(newType.getNumElements() == curType.getNumElements() &&
|
|
"expected the same number of elements");
|
|
return DenseIntOrFPElementsAttr::getRaw(newType, getRawData(), isSplat());
|
|
}
|
|
|
|
DenseElementsAttr
|
|
DenseElementsAttr::mapValues(Type newElementType,
|
|
function_ref<APInt(const APInt &)> mapping) const {
|
|
return cast<DenseIntElementsAttr>().mapValues(newElementType, mapping);
|
|
}
|
|
|
|
DenseElementsAttr DenseElementsAttr::mapValues(
|
|
Type newElementType, function_ref<APInt(const APFloat &)> mapping) const {
|
|
return cast<DenseFPElementsAttr>().mapValues(newElementType, mapping);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseStringElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
DenseStringElementsAttr
|
|
DenseStringElementsAttr::get(ShapedType type, ArrayRef<StringRef> values) {
|
|
return Base::get(type.getContext(), StandardAttributes::DenseStringElements,
|
|
type, values, (values.size() == 1));
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseIntOrFPElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// Utility method to write a range of APInt values to a buffer.
|
|
template <typename APRangeT>
|
|
static void writeAPIntsToBuffer(size_t storageWidth, std::vector<char> &data,
|
|
APRangeT &&values) {
|
|
data.resize(llvm::divideCeil(storageWidth, CHAR_BIT) * llvm::size(values));
|
|
size_t offset = 0;
|
|
for (auto it = values.begin(), e = values.end(); it != e;
|
|
++it, offset += storageWidth) {
|
|
assert((*it).getBitWidth() <= storageWidth);
|
|
writeBits(data.data(), offset, *it);
|
|
}
|
|
}
|
|
|
|
/// Constructs a dense elements attribute from an array of raw APFloat values.
|
|
/// Each APFloat value is expected to have the same bitwidth as the element
|
|
/// type of 'type'. 'type' must be a vector or tensor with static shape.
|
|
DenseElementsAttr DenseIntOrFPElementsAttr::getRaw(ShapedType type,
|
|
size_t storageWidth,
|
|
ArrayRef<APFloat> values,
|
|
bool isSplat) {
|
|
std::vector<char> data;
|
|
auto unwrapFloat = [](const APFloat &val) { return val.bitcastToAPInt(); };
|
|
writeAPIntsToBuffer(storageWidth, data, llvm::map_range(values, unwrapFloat));
|
|
return DenseIntOrFPElementsAttr::getRaw(type, data, isSplat);
|
|
}
|
|
|
|
/// Constructs a dense elements attribute from an array of raw APInt values.
|
|
/// Each APInt value is expected to have the same bitwidth as the element type
|
|
/// of 'type'.
|
|
DenseElementsAttr DenseIntOrFPElementsAttr::getRaw(ShapedType type,
|
|
size_t storageWidth,
|
|
ArrayRef<APInt> values,
|
|
bool isSplat) {
|
|
std::vector<char> data;
|
|
writeAPIntsToBuffer(storageWidth, data, values);
|
|
return DenseIntOrFPElementsAttr::getRaw(type, data, isSplat);
|
|
}
|
|
|
|
DenseElementsAttr DenseIntOrFPElementsAttr::getRaw(ShapedType type,
|
|
ArrayRef<char> data,
|
|
bool isSplat) {
|
|
assert((type.isa<RankedTensorType>() || type.isa<VectorType>()) &&
|
|
"type must be ranked tensor or vector");
|
|
assert(type.hasStaticShape() && "type must have static shape");
|
|
return Base::get(type.getContext(), StandardAttributes::DenseIntOrFPElements,
|
|
type, data, isSplat);
|
|
}
|
|
|
|
/// Overload of the raw 'get' method that asserts that the given type is of
|
|
/// complex type. This method is used to verify type invariants that the
|
|
/// templatized 'get' method cannot.
|
|
DenseElementsAttr DenseIntOrFPElementsAttr::getRawComplex(ShapedType type,
|
|
ArrayRef<char> data,
|
|
int64_t dataEltSize,
|
|
bool isInt,
|
|
bool isSigned) {
|
|
assert(::isValidIntOrFloat(
|
|
type.getElementType().cast<ComplexType>().getElementType(),
|
|
dataEltSize / 2, isInt, isSigned));
|
|
|
|
int64_t numElements = data.size() / dataEltSize;
|
|
assert(numElements == 1 || numElements == type.getNumElements());
|
|
return getRaw(type, data, /*isSplat=*/numElements == 1);
|
|
}
|
|
|
|
/// Overload of the 'getRaw' method that asserts that the given type is of
|
|
/// integer type. This method is used to verify type invariants that the
|
|
/// templatized 'get' method cannot.
|
|
DenseElementsAttr
|
|
DenseIntOrFPElementsAttr::getRawIntOrFloat(ShapedType type, ArrayRef<char> data,
|
|
int64_t dataEltSize, bool isInt,
|
|
bool isSigned) {
|
|
assert(
|
|
::isValidIntOrFloat(type.getElementType(), dataEltSize, isInt, isSigned));
|
|
|
|
int64_t numElements = data.size() / dataEltSize;
|
|
assert(numElements == 1 || numElements == type.getNumElements());
|
|
return getRaw(type, data, /*isSplat=*/numElements == 1);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseFPElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
template <typename Fn, typename Attr>
|
|
static ShapedType mappingHelper(Fn mapping, Attr &attr, ShapedType inType,
|
|
Type newElementType,
|
|
llvm::SmallVectorImpl<char> &data) {
|
|
size_t bitWidth = getDenseElementBitWidth(newElementType);
|
|
size_t storageBitWidth = getDenseElementStorageWidth(bitWidth);
|
|
|
|
ShapedType newArrayType;
|
|
if (inType.isa<RankedTensorType>())
|
|
newArrayType = RankedTensorType::get(inType.getShape(), newElementType);
|
|
else if (inType.isa<UnrankedTensorType>())
|
|
newArrayType = RankedTensorType::get(inType.getShape(), newElementType);
|
|
else if (inType.isa<VectorType>())
|
|
newArrayType = VectorType::get(inType.getShape(), newElementType);
|
|
else
|
|
assert(newArrayType && "Unhandled tensor type");
|
|
|
|
size_t numRawElements = attr.isSplat() ? 1 : newArrayType.getNumElements();
|
|
data.resize(llvm::divideCeil(storageBitWidth, CHAR_BIT) * numRawElements);
|
|
|
|
// Functor used to process a single element value of the attribute.
|
|
auto processElt = [&](decltype(*attr.begin()) value, size_t index) {
|
|
auto newInt = mapping(value);
|
|
assert(newInt.getBitWidth() == bitWidth);
|
|
writeBits(data.data(), index * storageBitWidth, newInt);
|
|
};
|
|
|
|
// Check for the splat case.
|
|
if (attr.isSplat()) {
|
|
processElt(*attr.begin(), /*index=*/0);
|
|
return newArrayType;
|
|
}
|
|
|
|
// Otherwise, process all of the element values.
|
|
uint64_t elementIdx = 0;
|
|
for (auto value : attr)
|
|
processElt(value, elementIdx++);
|
|
return newArrayType;
|
|
}
|
|
|
|
DenseElementsAttr DenseFPElementsAttr::mapValues(
|
|
Type newElementType, function_ref<APInt(const APFloat &)> mapping) const {
|
|
llvm::SmallVector<char, 8> elementData;
|
|
auto newArrayType =
|
|
mappingHelper(mapping, *this, getType(), newElementType, elementData);
|
|
|
|
return getRaw(newArrayType, elementData, isSplat());
|
|
}
|
|
|
|
/// Method for supporting type inquiry through isa, cast and dyn_cast.
|
|
bool DenseFPElementsAttr::classof(Attribute attr) {
|
|
return attr.isa<DenseElementsAttr>() &&
|
|
attr.getType().cast<ShapedType>().getElementType().isa<FloatType>();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// DenseIntElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
DenseElementsAttr DenseIntElementsAttr::mapValues(
|
|
Type newElementType, function_ref<APInt(const APInt &)> mapping) const {
|
|
llvm::SmallVector<char, 8> elementData;
|
|
auto newArrayType =
|
|
mappingHelper(mapping, *this, getType(), newElementType, elementData);
|
|
|
|
return getRaw(newArrayType, elementData, isSplat());
|
|
}
|
|
|
|
/// Method for supporting type inquiry through isa, cast and dyn_cast.
|
|
bool DenseIntElementsAttr::classof(Attribute attr) {
|
|
return attr.isa<DenseElementsAttr>() &&
|
|
attr.getType().cast<ShapedType>().getElementType().isIntOrIndex();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// OpaqueElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
OpaqueElementsAttr OpaqueElementsAttr::get(Dialect *dialect, ShapedType type,
|
|
StringRef bytes) {
|
|
assert(TensorType::isValidElementType(type.getElementType()) &&
|
|
"Input element type should be a valid tensor element type");
|
|
return Base::get(type.getContext(), StandardAttributes::OpaqueElements, type,
|
|
dialect, bytes);
|
|
}
|
|
|
|
StringRef OpaqueElementsAttr::getValue() const { return getImpl()->bytes; }
|
|
|
|
/// Return the value at the given index. If index does not refer to a valid
|
|
/// element, then a null attribute is returned.
|
|
Attribute OpaqueElementsAttr::getValue(ArrayRef<uint64_t> index) const {
|
|
assert(isValidIndex(index) && "expected valid multi-dimensional index");
|
|
if (Dialect *dialect = getDialect())
|
|
return dialect->extractElementHook(*this, index);
|
|
return Attribute();
|
|
}
|
|
|
|
Dialect *OpaqueElementsAttr::getDialect() const { return getImpl()->dialect; }
|
|
|
|
bool OpaqueElementsAttr::decode(ElementsAttr &result) {
|
|
if (auto *d = getDialect())
|
|
return d->decodeHook(*this, result);
|
|
return true;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SparseElementsAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
SparseElementsAttr SparseElementsAttr::get(ShapedType type,
|
|
DenseElementsAttr indices,
|
|
DenseElementsAttr values) {
|
|
assert(indices.getType().getElementType().isInteger(64) &&
|
|
"expected sparse indices to be 64-bit integer values");
|
|
assert((type.isa<RankedTensorType>() || type.isa<VectorType>()) &&
|
|
"type must be ranked tensor or vector");
|
|
assert(type.hasStaticShape() && "type must have static shape");
|
|
return Base::get(type.getContext(), StandardAttributes::SparseElements, type,
|
|
indices.cast<DenseIntElementsAttr>(), values);
|
|
}
|
|
|
|
DenseIntElementsAttr SparseElementsAttr::getIndices() const {
|
|
return getImpl()->indices;
|
|
}
|
|
|
|
DenseElementsAttr SparseElementsAttr::getValues() const {
|
|
return getImpl()->values;
|
|
}
|
|
|
|
/// Return the value of the element at the given index.
|
|
Attribute SparseElementsAttr::getValue(ArrayRef<uint64_t> index) const {
|
|
assert(isValidIndex(index) && "expected valid multi-dimensional index");
|
|
auto type = getType();
|
|
|
|
// The sparse indices are 64-bit integers, so we can reinterpret the raw data
|
|
// as a 1-D index array.
|
|
auto sparseIndices = getIndices();
|
|
auto sparseIndexValues = sparseIndices.getValues<uint64_t>();
|
|
|
|
// Check to see if the indices are a splat.
|
|
if (sparseIndices.isSplat()) {
|
|
// If the index is also not a splat of the index value, we know that the
|
|
// value is zero.
|
|
auto splatIndex = *sparseIndexValues.begin();
|
|
if (llvm::any_of(index, [=](uint64_t i) { return i != splatIndex; }))
|
|
return getZeroAttr();
|
|
|
|
// If the indices are a splat, we also expect the values to be a splat.
|
|
assert(getValues().isSplat() && "expected splat values");
|
|
return getValues().getSplatValue();
|
|
}
|
|
|
|
// Build a mapping between known indices and the offset of the stored element.
|
|
llvm::SmallDenseMap<llvm::ArrayRef<uint64_t>, size_t> mappedIndices;
|
|
auto numSparseIndices = sparseIndices.getType().getDimSize(0);
|
|
size_t rank = type.getRank();
|
|
for (size_t i = 0, e = numSparseIndices; i != e; ++i)
|
|
mappedIndices.try_emplace(
|
|
{&*std::next(sparseIndexValues.begin(), i * rank), rank}, i);
|
|
|
|
// Look for the provided index key within the mapped indices. If the provided
|
|
// index is not found, then return a zero attribute.
|
|
auto it = mappedIndices.find(index);
|
|
if (it == mappedIndices.end())
|
|
return getZeroAttr();
|
|
|
|
// Otherwise, return the held sparse value element.
|
|
return getValues().getValue(it->second);
|
|
}
|
|
|
|
/// Get a zero APFloat for the given sparse attribute.
|
|
APFloat SparseElementsAttr::getZeroAPFloat() const {
|
|
auto eltType = getType().getElementType().cast<FloatType>();
|
|
return APFloat(eltType.getFloatSemantics());
|
|
}
|
|
|
|
/// Get a zero APInt for the given sparse attribute.
|
|
APInt SparseElementsAttr::getZeroAPInt() const {
|
|
auto eltType = getType().getElementType().cast<IntegerType>();
|
|
return APInt::getNullValue(eltType.getWidth());
|
|
}
|
|
|
|
/// Get a zero attribute for the given attribute type.
|
|
Attribute SparseElementsAttr::getZeroAttr() const {
|
|
auto eltType = getType().getElementType();
|
|
|
|
// Handle floating point elements.
|
|
if (eltType.isa<FloatType>())
|
|
return FloatAttr::get(eltType, 0);
|
|
|
|
// Otherwise, this is an integer.
|
|
// TODO: Handle StringAttr here.
|
|
return IntegerAttr::get(eltType, 0);
|
|
}
|
|
|
|
/// Flatten, and return, all of the sparse indices in this attribute in
|
|
/// row-major order.
|
|
std::vector<ptrdiff_t> SparseElementsAttr::getFlattenedSparseIndices() const {
|
|
std::vector<ptrdiff_t> flatSparseIndices;
|
|
|
|
// The sparse indices are 64-bit integers, so we can reinterpret the raw data
|
|
// as a 1-D index array.
|
|
auto sparseIndices = getIndices();
|
|
auto sparseIndexValues = sparseIndices.getValues<uint64_t>();
|
|
if (sparseIndices.isSplat()) {
|
|
SmallVector<uint64_t, 8> indices(getType().getRank(),
|
|
*sparseIndexValues.begin());
|
|
flatSparseIndices.push_back(getFlattenedIndex(indices));
|
|
return flatSparseIndices;
|
|
}
|
|
|
|
// Otherwise, reinterpret each index as an ArrayRef when flattening.
|
|
auto numSparseIndices = sparseIndices.getType().getDimSize(0);
|
|
size_t rank = getType().getRank();
|
|
for (size_t i = 0, e = numSparseIndices; i != e; ++i)
|
|
flatSparseIndices.push_back(getFlattenedIndex(
|
|
{&*std::next(sparseIndexValues.begin(), i * rank), rank}));
|
|
return flatSparseIndices;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// MutableDictionaryAttr
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
MutableDictionaryAttr::MutableDictionaryAttr(
|
|
ArrayRef<NamedAttribute> attributes) {
|
|
setAttrs(attributes);
|
|
}
|
|
|
|
/// Return the underlying dictionary attribute.
|
|
DictionaryAttr
|
|
MutableDictionaryAttr::getDictionary(MLIRContext *context) const {
|
|
// Construct empty DictionaryAttr if needed.
|
|
if (!attrs)
|
|
return DictionaryAttr::get({}, context);
|
|
return attrs;
|
|
}
|
|
|
|
ArrayRef<NamedAttribute> MutableDictionaryAttr::getAttrs() const {
|
|
return attrs ? attrs.getValue() : llvm::None;
|
|
}
|
|
|
|
/// Replace the held attributes with ones provided in 'newAttrs'.
|
|
void MutableDictionaryAttr::setAttrs(ArrayRef<NamedAttribute> attributes) {
|
|
// Don't create an attribute list if there are no attributes.
|
|
if (attributes.empty())
|
|
attrs = nullptr;
|
|
else
|
|
attrs = DictionaryAttr::get(attributes, attributes[0].second.getContext());
|
|
}
|
|
|
|
/// Return the specified attribute if present, null otherwise.
|
|
Attribute MutableDictionaryAttr::get(StringRef name) const {
|
|
return attrs ? attrs.get(name) : nullptr;
|
|
}
|
|
|
|
/// Return the specified attribute if present, null otherwise.
|
|
Attribute MutableDictionaryAttr::get(Identifier name) const {
|
|
return attrs ? attrs.get(name) : nullptr;
|
|
}
|
|
|
|
/// Return the specified named attribute if present, None otherwise.
|
|
Optional<NamedAttribute> MutableDictionaryAttr::getNamed(StringRef name) const {
|
|
return attrs ? attrs.getNamed(name) : Optional<NamedAttribute>();
|
|
}
|
|
Optional<NamedAttribute>
|
|
MutableDictionaryAttr::getNamed(Identifier name) const {
|
|
return attrs ? attrs.getNamed(name) : Optional<NamedAttribute>();
|
|
}
|
|
|
|
/// If the an attribute exists with the specified name, change it to the new
|
|
/// value. Otherwise, add a new attribute with the specified name/value.
|
|
void MutableDictionaryAttr::set(Identifier name, Attribute value) {
|
|
assert(value && "attributes may never be null");
|
|
|
|
// Look for an existing value for the given name, and set it in-place.
|
|
ArrayRef<NamedAttribute> values = getAttrs();
|
|
const auto *it = llvm::find_if(
|
|
values, [name](NamedAttribute attr) { return attr.first == name; });
|
|
if (it != values.end()) {
|
|
// Bail out early if the value is the same as what we already have.
|
|
if (it->second == value)
|
|
return;
|
|
|
|
SmallVector<NamedAttribute, 8> newAttrs(values.begin(), values.end());
|
|
newAttrs[it - values.begin()].second = value;
|
|
attrs = DictionaryAttr::getWithSorted(newAttrs, value.getContext());
|
|
return;
|
|
}
|
|
|
|
// Otherwise, insert the new attribute into its sorted position.
|
|
it = llvm::lower_bound(values, name);
|
|
SmallVector<NamedAttribute, 8> newAttrs;
|
|
newAttrs.reserve(values.size() + 1);
|
|
newAttrs.append(values.begin(), it);
|
|
newAttrs.push_back({name, value});
|
|
newAttrs.append(it, values.end());
|
|
attrs = DictionaryAttr::getWithSorted(newAttrs, value.getContext());
|
|
}
|
|
|
|
/// Remove the attribute with the specified name if it exists. The return
|
|
/// value indicates whether the attribute was present or not.
|
|
auto MutableDictionaryAttr::remove(Identifier name) -> RemoveResult {
|
|
auto origAttrs = getAttrs();
|
|
for (unsigned i = 0, e = origAttrs.size(); i != e; ++i) {
|
|
if (origAttrs[i].first == name) {
|
|
// Handle the simple case of removing the only attribute in the list.
|
|
if (e == 1) {
|
|
attrs = nullptr;
|
|
return RemoveResult::Removed;
|
|
}
|
|
|
|
SmallVector<NamedAttribute, 8> newAttrs;
|
|
newAttrs.reserve(origAttrs.size() - 1);
|
|
newAttrs.append(origAttrs.begin(), origAttrs.begin() + i);
|
|
newAttrs.append(origAttrs.begin() + i + 1, origAttrs.end());
|
|
attrs = DictionaryAttr::getWithSorted(newAttrs,
|
|
newAttrs[0].second.getContext());
|
|
return RemoveResult::Removed;
|
|
}
|
|
}
|
|
return RemoveResult::NotFound;
|
|
}
|
|
|
|
bool mlir::operator<(const NamedAttribute &lhs, const NamedAttribute &rhs) {
|
|
return strcmp(lhs.first.data(), rhs.first.data()) < 0;
|
|
}
|
|
bool mlir::operator<(const NamedAttribute &lhs, StringRef rhs) {
|
|
// This is correct even when attr.first.data()[name.size()] is not a zero
|
|
// string terminator, because we only care about a less than comparison.
|
|
// This can't use memcmp, because it doesn't guarantee that it will stop
|
|
// reading both buffers if one is shorter than the other, even if there is
|
|
// a difference.
|
|
return strncmp(lhs.first.data(), rhs.data(), rhs.size()) < 0;
|
|
}
|