1//===- llvm/unittest/VMCore/VerifierTest.cpp - Verifier unit tests --------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#include "llvm/Constants.h" 11#include "llvm/DerivedTypes.h" 12#include "llvm/Function.h" 13#include "llvm/GlobalAlias.h" 14#include "llvm/GlobalVariable.h" 15#include "llvm/Instructions.h" 16#include "llvm/LLVMContext.h" 17#include "llvm/Module.h" 18#include "llvm/ADT/OwningPtr.h" 19#include "llvm/Analysis/Verifier.h" 20#include "gtest/gtest.h" 21 22namespace llvm { 23namespace { 24 25TEST(VerifierTest, Branch_i1) { 26 LLVMContext &C = getGlobalContext(); 27 FunctionType *FTy = FunctionType::get(Type::getVoidTy(C), /*isVarArg=*/false); 28 OwningPtr<Function> F(Function::Create(FTy, GlobalValue::ExternalLinkage)); 29 BasicBlock *Entry = BasicBlock::Create(C, "entry", F.get()); 30 BasicBlock *Exit = BasicBlock::Create(C, "exit", F.get()); 31 ReturnInst::Create(C, Exit); 32 33 // To avoid triggering an assertion in BranchInst::Create, we first create 34 // a branch with an 'i1' condition ... 35 36 Constant *False = ConstantInt::getFalse(C); 37 BranchInst *BI = BranchInst::Create(Exit, Exit, False, Entry); 38 39 // ... then use setOperand to redirect it to a value of different type. 40 41 Constant *Zero32 = ConstantInt::get(IntegerType::get(C, 32), 0); 42 BI->setOperand(0, Zero32); 43 44 EXPECT_TRUE(verifyFunction(*F, ReturnStatusAction)); 45} 46 47TEST(VerifierTest, AliasUnnamedAddr) { 48 LLVMContext &C = getGlobalContext(); 49 Module M("M", C); 50 Type *Ty = Type::getInt8Ty(C); 51 Constant *Init = Constant::getNullValue(Ty); 52 GlobalVariable *Aliasee = new GlobalVariable(M, Ty, true, 53 GlobalValue::ExternalLinkage, 54 Init, "foo"); 55 GlobalAlias *GA = new GlobalAlias(Type::getInt8PtrTy(C), 56 GlobalValue::ExternalLinkage, 57 "bar", Aliasee, &M); 58 GA->setUnnamedAddr(true); 59 std::string Error; 60 EXPECT_TRUE(verifyModule(M, ReturnStatusAction, &Error)); 61 EXPECT_TRUE(StringRef(Error).startswith("Alias cannot have unnamed_addr")); 62} 63} 64} 65