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//===- mlir-cat.cpp ---------------------------------------------*- C++ -*-===//
//
// This file is licensed under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "mlir/IR/MLIRContext.h"
#include "mlir/IR/Operation.h"
#include "mlir/IR/OwningOpRef.h"
#include "mlir/Parser/Parser.h"
#include "mlir/Support/FileUtilities.h"
#include "mlir/Support/LLVM.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdlib>
#include <string>
#include <utility>
using namespace mlir;
/// This example parse its input, either from a file or its standard input (in
/// bytecode or textual assembly) and print it back.
int main(int argc, char **argv) {
// Set up the input file.
StringRef inputFile;
if (argc <= 1) {
llvm::errs() << "Reading from stdin...\n";
inputFile = "-";
} else {
inputFile = argv[1];
}
std::string errorMessage;
auto file = openInputFile(inputFile, &errorMessage);
if (!file) {
llvm::errs() << errorMessage << "\n";
exit(1);
}
llvm::SourceMgr sourceMgr;
sourceMgr.AddNewSourceBuffer(std::move(file), SMLoc());
auto output = openOutputFile("-", &errorMessage);
if (!output) {
llvm::errs() << errorMessage << "\n";
exit(1);
}
DialectRegistry registry;
MLIRContext context(registry, MLIRContext::Threading::DISABLED);
context.allowUnregisteredDialects(true);
OwningOpRef<Operation *> op = parseSourceFile(sourceMgr, &context);
if (!op) {
llvm::errs() << "Failed to parse input file";
exit(1);
}
output->os() << *(op.get()) << "\n";
}
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