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//===--- FunctionOrderPrinter.cpp - Function ordering test 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 pass prints a bottom-up ordering of functions in the module (in the
// sense that each function is printed before functions that call it).
//
//===----------------------------------------------------------------------===//
#include "swift/SILOptimizer/Analysis/FunctionOrder.h"
#include "swift/Demangling/Demangle.h"
#include "swift/SILOptimizer/Analysis/BasicCalleeAnalysis.h"
#include "swift/SIL/SILFunction.h"
#include "swift/SIL/SILModule.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
#include "llvm/Support/raw_ostream.h"
using namespace swift;
#define DEBUG_TYPE "function-order-printer"
namespace {
class FunctionOrderPrinterPass : public SILModuleTransform {
BasicCalleeAnalysis *BCA;
/// The entry point to the transformation.
void run() override {
BCA = getAnalysis<BasicCalleeAnalysis>();
auto &M = *getModule();
BottomUpFunctionOrder Orderer(M, BCA);
llvm::outs() << "Bottom up function order:\n";
auto SCCs = Orderer.getSCCs();
for (auto &SCC : SCCs) {
std::string Indent;
if (SCC.size() != 1) {
llvm::outs() << "Non-trivial SCC:\n";
Indent = std::string(2, ' ');
}
for (auto *F : SCC) {
llvm::outs() << Indent
<< Demangle::demangleSymbolAsString(F->getName())
<< "\n";
}
}
llvm::outs() << "\n";
}
};
} // end anonymous namespace
SILTransform *swift::createFunctionOrderPrinter() {
return new FunctionOrderPrinterPass();
}
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