1//===- Utils.cpp - llvm-reduce utility functions --------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains some utility functions supporting llvm-reduce.
10//
11//===----------------------------------------------------------------------===//
12
13#include "Utils.h"
14#include "llvm/IR/Constants.h"
15#include "llvm/IR/GlobalAlias.h"
16#include "llvm/IR/GlobalIFunc.h"
17
18using namespace llvm;
19
20extern cl::OptionCategory LLVMReduceOptions;
21
22cl::opt<bool> llvm::Verbose("verbose",
23 cl::desc("Print extra debugging information"),
24 cl::init(Val: false), cl::cat(LLVMReduceOptions));
25
26Value *llvm::getDefaultValue(Type *T) {
27 return T->isVoidTy() ? PoisonValue::get(T) : Constant::getNullValue(Ty: T);
28}
29
30bool llvm::hasAliasUse(Function &F) {
31 return any_of(Range: F.users(), P: [](User *U) {
32 return isa<GlobalAlias>(Val: U) || isa<GlobalIFunc>(Val: U);
33 });
34}
35
36bool llvm::hasAliasOrBlockAddressUse(Function &F) {
37 return any_of(Range: F.users(), P: [](User *U) {
38 return isa<GlobalAlias, GlobalIFunc, BlockAddress>(Val: U);
39 });
40}
41