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