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

//===- ReduceInstructions.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 Instructions from defined functions.
//
//===----------------------------------------------------------------------===//

#include "ReduceInstructions.h"
#include "Utils.h"
#include "llvm/IR/Constants.h"
#include <set>

usingnamespacellvm;

/// Filter out cases where deleting the instruction will likely cause the
/// user/def of the instruction to fail the verifier.
//
// TODO: Technically the verifier only enforces preallocated token usage and
// there is a none token.
static bool shouldAlwaysKeep(const Instruction &I) { … }

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

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