llvm/llvm/lib/CodeGen/EdgeBundles.cpp

//===-------- EdgeBundles.cpp - Bundles of CFG edges ----------------------===//
//
// 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 provides the implementation of the EdgeBundles analysis.
//
//===----------------------------------------------------------------------===//

#include "llvm/CodeGen/EdgeBundles.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/raw_ostream.h"

usingnamespacellvm;

static cl::opt<bool>
ViewEdgeBundles("view-edge-bundles", cl::Hidden,
                cl::desc("Pop up a window to show edge bundle graphs"));

char EdgeBundles::ID = …;

INITIALIZE_PASS(…)

char &llvm::EdgeBundlesID = …;

void EdgeBundles::getAnalysisUsage(AnalysisUsage &AU) const { … }

bool EdgeBundles::runOnMachineFunction(MachineFunction &mf) { … }

namespace llvm {

/// Specialize WriteGraph, the standard implementation won't work.
template<>
raw_ostream &WriteGraph<>(raw_ostream &O, const EdgeBundles &G,
                          bool ShortNames,
                          const Twine &Title) { … }

} // end namespace llvm

/// view - Visualize the annotated bipartite CFG with Graphviz.
void EdgeBundles::view() const { … }