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//===- ToolUtilities.cpp - MLIR Tool Utilities ----------------------------===//
//
// Copyright 2019 The MLIR Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// =============================================================================
//
// This file defines common utilities for implementing MLIR tools.
//
//===----------------------------------------------------------------------===//
#include "mlir/Support/ToolUtilities.h"
#include "mlir/Support/LLVM.h"
#include "mlir/Support/LogicalResult.h"
#include "llvm/Support/SourceMgr.h"
using namespace mlir;
LogicalResult
mlir::splitAndProcessBuffer(std::unique_ptr<llvm::MemoryBuffer> originalBuffer,
ChunkBufferHandler processChunkBuffer,
raw_ostream &os) {
const char splitMarker[] = "// -----";
auto *origMemBuffer = originalBuffer.get();
SmallVector<StringRef, 8> sourceBuffers;
origMemBuffer->getBuffer().split(sourceBuffers, splitMarker);
// Add the original buffer to the source manager.
llvm::SourceMgr fileSourceMgr;
fileSourceMgr.AddNewSourceBuffer(std::move(originalBuffer), llvm::SMLoc());
// Process each chunk in turn.
bool hadFailure = false;
for (auto &subBuffer : sourceBuffers) {
auto splitLoc = llvm::SMLoc::getFromPointer(subBuffer.data());
unsigned splitLine = fileSourceMgr.getLineAndColumn(splitLoc).first;
auto subMemBuffer = llvm::MemoryBuffer::getMemBufferCopy(
subBuffer, origMemBuffer->getBufferIdentifier() +
Twine(" split at line #") + Twine(splitLine));
if (failed(processChunkBuffer(std::move(subMemBuffer), os)))
hadFailure = true;
}
// If any fails, then return a failure of the tool.
return failure(hadFailure);
}
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