Files
llvm/mlir/lib/Support/ToolUtilities.cpp
Mehdi Amini 308571074c Mass update the MLIR license header to mention "Part of the LLVM project"
This is an artifact from merging MLIR into LLVM, the file headers are
now aligned with the rest of the project.
2020-01-26 03:58:30 +00:00

49 lines
1.8 KiB
C++

//===- ToolUtilities.cpp - MLIR Tool Utilities ----------------------------===//
//
// Part of the LLVM Project, 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
//
//===----------------------------------------------------------------------===//
//
// 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);
}