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//===--- CFGPrinter.cpp - CFG printer pass --------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file defines external functions that can be called to explicitly
// instantiate the CFG printer.
//
//===----------------------------------------------------------------------===//
#include "swift/SILOptimizer/PassManager/Passes.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
#include "swift/SIL/CFG.h"
#include "swift/SIL/SILBasicBlock.h"
#include "swift/SIL/SILInstruction.h"
#include "swift/SIL/SILFunction.h"
#include "llvm/Support/CommandLine.h"
using namespace swift;
//===----------------------------------------------------------------------===//
// Options
//===----------------------------------------------------------------------===//
llvm::cl::opt<std::string> SILViewCFGOnlyFun(
"sil-view-cfg-only-function", llvm::cl::init(""),
llvm::cl::desc("Only produce a graphviz file for this function"));
llvm::cl::opt<std::string> SILViewCFGOnlyFuns(
"sil-view-cfg-only-functions", llvm::cl::init(""),
llvm::cl::desc("Only produce a graphviz file for the sil for the functions "
"whose name contains this substring"));
//===----------------------------------------------------------------------===//
// Top Level Driver
//===----------------------------------------------------------------------===//
namespace {
class SILCFGPrinter : public SILFunctionTransform {
/// The entry point to the transformation.
void run() override {
SILFunction *F = getFunction();
// If we are not supposed to dump view this cfg, return.
if (!SILViewCFGOnlyFun.empty() && F && F->getName() != SILViewCFGOnlyFun)
return;
if (!SILViewCFGOnlyFuns.empty() && F &&
!F->getName().contains(SILViewCFGOnlyFuns))
return;
F->viewCFG();
}
};
} // end anonymous namespace
SILTransform *swift::createCFGPrinter() {
return new SILCFGPrinter();
}
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