204c3b5516
This revision moves the various range utilities present in MLIR to LLVM to enable greater reuse. This revision moves the following utilities: * indexed_accessor_* This is set of utility iterator/range base classes that allow for building a range class where the iterators are represented by an object+index pair. * make_second_range Given a range of pairs, returns a range iterating over the `second` elements. * hasSingleElement Returns if the given range has 1 element. size() == 1 checks end up being very common, but size() is not always O(1) (e.g., ilist). This method provides O(1) checks for those cases. Differential Revision: https://reviews.llvm.org/D78064
110 lines
3.8 KiB
C++
110 lines
3.8 KiB
C++
//===- Module.cpp - MLIR Module Operation ---------------------------------===//
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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/Module.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/IR/OpImplementation.h"
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using namespace mlir;
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//===----------------------------------------------------------------------===//
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// Module Operation.
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//===----------------------------------------------------------------------===//
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void ModuleOp::build(Builder *builder, OperationState &result,
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Optional<StringRef> name) {
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ensureTerminator(*result.addRegion(), *builder, result.location);
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if (name)
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result.attributes.push_back(builder->getNamedAttr(
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mlir::SymbolTable::getSymbolAttrName(), builder->getStringAttr(*name)));
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}
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/// Construct a module from the given context.
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ModuleOp ModuleOp::create(Location loc, Optional<StringRef> name) {
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OperationState state(loc, "module");
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Builder builder(loc->getContext());
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ModuleOp::build(&builder, state, name);
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return cast<ModuleOp>(Operation::create(state));
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}
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ParseResult ModuleOp::parse(OpAsmParser &parser, OperationState &result) {
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// If the name is present, parse it.
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StringAttr nameAttr;
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(void)parser.parseOptionalSymbolName(
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nameAttr, mlir::SymbolTable::getSymbolAttrName(), result.attributes);
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// If module attributes are present, parse them.
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if (parser.parseOptionalAttrDictWithKeyword(result.attributes))
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return failure();
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// Parse the module body.
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auto *body = result.addRegion();
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if (parser.parseRegion(*body, llvm::None, llvm::None))
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return failure();
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// Ensure that this module has a valid terminator.
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ensureTerminator(*body, parser.getBuilder(), result.location);
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return success();
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}
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void ModuleOp::print(OpAsmPrinter &p) {
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p << "module";
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if (Optional<StringRef> name = getName()) {
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p << ' ';
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p.printSymbolName(*name);
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}
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// Print the module attributes.
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p.printOptionalAttrDictWithKeyword(getAttrs(),
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{mlir::SymbolTable::getSymbolAttrName()});
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// Print the region.
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p.printRegion(getOperation()->getRegion(0), /*printEntryBlockArgs=*/false,
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/*printBlockTerminators=*/false);
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}
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LogicalResult ModuleOp::verify() {
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auto &bodyRegion = getOperation()->getRegion(0);
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// The body must contain a single basic block.
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if (!llvm::hasSingleElement(bodyRegion))
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return emitOpError("expected body region to have a single block");
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// Check that the body has no block arguments.
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auto *body = &bodyRegion.front();
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if (body->getNumArguments() != 0)
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return emitOpError("expected body to have no arguments");
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// Check that none of the attributes are non-dialect attributes, except for
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// the symbol related attributes.
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for (auto attr : getOperation()->getAttrList().getAttrs()) {
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if (!attr.first.strref().contains('.') &&
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!llvm::is_contained(
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ArrayRef<StringRef>{mlir::SymbolTable::getSymbolAttrName(),
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mlir::SymbolTable::getVisibilityAttrName()},
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attr.first.strref()))
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return emitOpError(
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"can only contain dialect-specific attributes, found: '")
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<< attr.first << "'";
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}
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return success();
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}
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/// Return body of this module.
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Region &ModuleOp::getBodyRegion() { return getOperation()->getRegion(0); }
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Block *ModuleOp::getBody() { return &getBodyRegion().front(); }
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Optional<StringRef> ModuleOp::getName() {
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if (auto nameAttr =
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getAttrOfType<StringAttr>(mlir::SymbolTable::getSymbolAttrName()))
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return nameAttr.getValue();
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return llvm::None;
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}
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