45c226d452
This is a new ODS feature that allows dialects to define a list of
key/value pair representing an attribute type and a name.
This will generate helper classes on the dialect to be able to
manage discardable attributes on operations in a type safe way.
For example the `test` dialect can define:
```
let discardableAttrs = (ins
"mlir::IntegerAttr":$discardable_attr_key,
);
```
And the following will be generated in the TestDialect class:
```
/// Helper to manage the discardable attribute `discardable_attr_key`.
class DiscardableAttrKeyAttrHelper {
::mlir::StringAttr name;
public:
static constexpr ::llvm::StringLiteral getNameStr() {
return "test.discardable_attr_key";
}
constexpr ::mlir::StringAttr getName() {
return name;
}
DiscardableAttrKeyAttrHelper(::mlir::MLIRContext *ctx)
: name(::mlir::StringAttr::get(ctx, getNameStr())) {}
mlir::IntegerAttr getAttr(::mlir::Operation *op) {
return op->getAttrOfType<mlir::IntegerAttr>(name);
}
void setAttr(::mlir::Operation *op, mlir::IntegerAttr val) {
op->setAttr(name, val);
}
bool isAttrPresent(::mlir::Operation *op) {
return op->hasAttrOfType<mlir::IntegerAttr>(name);
}
void removeAttr(::mlir::Operation *op) {
assert(op->hasAttrOfType<mlir::IntegerAttr>(name));
op->removeAttr(name);
}
};
DiscardableAttrKeyAttrHelper getDiscardableAttrKeyAttrHelper() {
return discardableAttrKeyAttrName;
}
```
User code having an instance of the TestDialect can then manipulate this
attribute on operation using:
```
auto helper = testDialect.getDiscardableAttrKeyAttrHelper();
helper.setAttr(op, value);
helper.isAttrPresent(op);
...
```
120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
//===- Dialect.cpp - Dialect wrapper class --------------------------------===//
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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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//
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// Dialect wrapper to simplify using TableGen Record defining a MLIR dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/TableGen/Dialect.h"
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#include "llvm/TableGen/Error.h"
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#include "llvm/TableGen/Record.h"
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using namespace mlir;
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using namespace mlir::tblgen;
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Dialect::Dialect(const llvm::Record *def) : def(def) {
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if (def == nullptr)
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return;
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for (StringRef dialect : def->getValueAsListOfStrings("dependentDialects"))
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dependentDialects.push_back(dialect);
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}
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StringRef Dialect::getName() const { return def->getValueAsString("name"); }
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StringRef Dialect::getCppNamespace() const {
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return def->getValueAsString("cppNamespace");
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}
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std::string Dialect::getCppClassName() const {
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// Simply use the name and remove any '_' tokens.
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std::string cppName = def->getName().str();
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llvm::erase(cppName, '_');
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return cppName;
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}
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static StringRef getAsStringOrEmpty(const llvm::Record &record,
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StringRef fieldName) {
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if (auto *valueInit = record.getValueInit(fieldName)) {
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if (llvm::isa<llvm::StringInit>(valueInit))
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return record.getValueAsString(fieldName);
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}
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return "";
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}
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StringRef Dialect::getSummary() const {
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return getAsStringOrEmpty(*def, "summary");
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}
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StringRef Dialect::getDescription() const {
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return getAsStringOrEmpty(*def, "description");
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}
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ArrayRef<StringRef> Dialect::getDependentDialects() const {
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return dependentDialects;
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}
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std::optional<StringRef> Dialect::getExtraClassDeclaration() const {
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auto value = def->getValueAsString("extraClassDeclaration");
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return value.empty() ? std::optional<StringRef>() : value;
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}
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bool Dialect::hasCanonicalizer() const {
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return def->getValueAsBit("hasCanonicalizer");
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}
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bool Dialect::hasConstantMaterializer() const {
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return def->getValueAsBit("hasConstantMaterializer");
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}
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bool Dialect::hasNonDefaultDestructor() const {
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return def->getValueAsBit("hasNonDefaultDestructor");
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}
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bool Dialect::hasOperationAttrVerify() const {
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return def->getValueAsBit("hasOperationAttrVerify");
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}
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bool Dialect::hasRegionArgAttrVerify() const {
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return def->getValueAsBit("hasRegionArgAttrVerify");
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}
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bool Dialect::hasRegionResultAttrVerify() const {
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return def->getValueAsBit("hasRegionResultAttrVerify");
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}
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bool Dialect::hasOperationInterfaceFallback() const {
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return def->getValueAsBit("hasOperationInterfaceFallback");
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}
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bool Dialect::useDefaultAttributePrinterParser() const {
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return def->getValueAsBit("useDefaultAttributePrinterParser");
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}
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bool Dialect::useDefaultTypePrinterParser() const {
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return def->getValueAsBit("useDefaultTypePrinterParser");
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}
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bool Dialect::isExtensible() const {
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return def->getValueAsBit("isExtensible");
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}
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bool Dialect::usePropertiesForAttributes() const {
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return def->getValueAsBit("usePropertiesForAttributes");
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}
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llvm::DagInit *Dialect::getDiscardableAttributes() const {
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return def->getValueAsDag("discardableAttrs");
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}
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bool Dialect::operator==(const Dialect &other) const {
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return def == other.def;
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}
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bool Dialect::operator<(const Dialect &other) const {
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return getName() < other.getName();
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}
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