llvm/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp

//===- ReduceArguments.cpp - Specialized Delta Pass -----------------------===//
//
// 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 implements a function which calls the Generic Delta pass in order
// to reduce uninteresting Arguments from declared and defined functions.
//
//===----------------------------------------------------------------------===//

#include "ReduceArguments.h"
#include "Delta.h"
#include "Utils.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include <set>
#include <vector>

usingnamespacellvm;

/// Goes over OldF calls and replaces them with a call to NewF
static void replaceFunctionCalls(Function &OldF, Function &NewF,
                                 const std::set<int> &ArgIndexesToKeep) { … }

/// Returns whether or not this function should be considered a candidate for
/// argument removal. Currently, functions with no arguments and intrinsics are
/// not considered. Intrinsics aren't considered because their signatures are
/// fixed.
static bool shouldRemoveArguments(const Function &F) { … }

/// Removes out-of-chunk arguments from functions, and modifies their calls
/// accordingly. It also removes allocations of out-of-chunk arguments.
static void extractArgumentsFromModule(Oracle &O, ReducerWorkItem &WorkItem) { … }

void llvm::reduceArgumentsDeltaPass(TestRunner &Test) { … }